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4633a7c4 |
1 | #!/usr/local/bin/perl |
2 | |
3 | use Config; |
4 | use File::Basename qw(&basename &dirname); |
5 | |
6 | # List explicitly here the variables you want Configure to |
7 | # generate. Metaconfig only looks for shell variables, so you |
8 | # have to mention them as if they were shell variables, not |
9 | # %Config entries. Thus you write |
10 | # $startperl |
11 | # to ensure Configure will look for $Config{startperl}. |
12 | |
13 | # This forces PL files to create target in same directory as PL file. |
14 | # This is so that make depend always knows where to find PL derivatives. |
44a8e56a |
15 | chdir dirname($0); |
16 | $file = basename($0, '.PL'); |
774d564b |
17 | $file .= '.com' if $^O eq 'VMS'; |
4633a7c4 |
18 | |
19 | open OUT,">$file" or die "Can't create $file: $!"; |
20 | |
21 | print "Extracting $file (with variable substitutions)\n"; |
22 | |
23 | # In this section, perl variables will be expanded during extraction. |
24 | # You can use $Config{...} to use Configure variables. |
25 | |
26 | print OUT <<"!GROK!THIS!"; |
5f05dabc |
27 | $Config{startperl} |
28 | eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}' |
29 | if \$running_under_some_shell; |
11aea360 |
30 | !GROK!THIS! |
31 | |
4633a7c4 |
32 | # In the following, perl variables are not expanded during extraction. |
33 | |
34 | print OUT <<'!NO!SUBS!'; |
35 | # |
11aea360 |
36 | # |
37 | # c2ph (aka pstruct) |
38 | # Tom Christiansen, <tchrist@convex.com> |
9aec1e06 |
39 | # |
11aea360 |
40 | # As pstruct, dump C structures as generated from 'cc -g -S' stabs. |
41 | # As c2ph, do this PLUS generate perl code for getting at the structures. |
42 | # |
43 | # See the usage message for more. If this isn't enough, read the code. |
44 | # |
45 | |
9aec1e06 |
46 | =head1 NAME |
47 | |
1fef88e7 |
48 | c2ph, pstruct - Dump C structures as generated from C<cc -g -S> stabs |
9aec1e06 |
49 | |
50 | =head1 SYNOPSIS |
51 | |
52 | c2ph [-dpnP] [var=val] [files ...] |
53 | |
54 | =head2 OPTIONS |
55 | |
56 | Options: |
57 | |
58 | -w wide; short for: type_width=45 member_width=35 offset_width=8 |
59 | -x hex; short for: offset_fmt=x offset_width=08 size_fmt=x size_width=04 |
60 | |
61 | -n do not generate perl code (default when invoked as pstruct) |
62 | -p generate perl code (default when invoked as c2ph) |
63 | -v generate perl code, with C decls as comments |
64 | |
65 | -i do NOT recompute sizes for intrinsic datatypes |
66 | -a dump information on intrinsics also |
67 | |
68 | -t trace execution |
69 | -d spew reams of debugging output |
70 | |
71 | -slist give comma-separated list a structures to dump |
72 | |
73 | =head1 DESCRIPTION |
74 | |
75 | The following is the old c2ph.doc documentation by Tom Christiansen |
76 | <tchrist@perl.com> |
77 | Date: 25 Jul 91 08:10:21 GMT |
78 | |
79 | Once upon a time, I wrote a program called pstruct. It was a perl |
80 | program that tried to parse out C structures and display their member |
81 | offsets for you. This was especially useful for people looking at |
82 | binary dumps or poking around the kernel. |
83 | |
84 | Pstruct was not a pretty program. Neither was it particularly robust. |
85 | The problem, you see, was that the C compiler was much better at parsing |
86 | C than I could ever hope to be. |
87 | |
88 | So I got smart: I decided to be lazy and let the C compiler parse the C, |
89 | which would spit out debugger stabs for me to read. These were much |
90 | easier to parse. It's still not a pretty program, but at least it's more |
91 | robust. |
92 | |
93 | Pstruct takes any .c or .h files, or preferably .s ones, since that's |
94 | the format it is going to massage them into anyway, and spits out |
95 | listings like this: |
96 | |
1fef88e7 |
97 | struct tty { |
98 | int tty.t_locker 000 4 |
99 | int tty.t_mutex_index 004 4 |
100 | struct tty * tty.t_tp_virt 008 4 |
101 | struct clist tty.t_rawq 00c 20 |
102 | int tty.t_rawq.c_cc 00c 4 |
103 | int tty.t_rawq.c_cmax 010 4 |
104 | int tty.t_rawq.c_cfx 014 4 |
105 | int tty.t_rawq.c_clx 018 4 |
106 | struct tty * tty.t_rawq.c_tp_cpu 01c 4 |
107 | struct tty * tty.t_rawq.c_tp_iop 020 4 |
108 | unsigned char * tty.t_rawq.c_buf_cpu 024 4 |
109 | unsigned char * tty.t_rawq.c_buf_iop 028 4 |
110 | struct clist tty.t_canq 02c 20 |
111 | int tty.t_canq.c_cc 02c 4 |
112 | int tty.t_canq.c_cmax 030 4 |
113 | int tty.t_canq.c_cfx 034 4 |
114 | int tty.t_canq.c_clx 038 4 |
115 | struct tty * tty.t_canq.c_tp_cpu 03c 4 |
116 | struct tty * tty.t_canq.c_tp_iop 040 4 |
117 | unsigned char * tty.t_canq.c_buf_cpu 044 4 |
118 | unsigned char * tty.t_canq.c_buf_iop 048 4 |
119 | struct clist tty.t_outq 04c 20 |
120 | int tty.t_outq.c_cc 04c 4 |
121 | int tty.t_outq.c_cmax 050 4 |
122 | int tty.t_outq.c_cfx 054 4 |
123 | int tty.t_outq.c_clx 058 4 |
124 | struct tty * tty.t_outq.c_tp_cpu 05c 4 |
125 | struct tty * tty.t_outq.c_tp_iop 060 4 |
126 | unsigned char * tty.t_outq.c_buf_cpu 064 4 |
127 | unsigned char * tty.t_outq.c_buf_iop 068 4 |
128 | (*int)() tty.t_oproc_cpu 06c 4 |
129 | (*int)() tty.t_oproc_iop 070 4 |
130 | (*int)() tty.t_stopproc_cpu 074 4 |
131 | (*int)() tty.t_stopproc_iop 078 4 |
132 | struct thread * tty.t_rsel 07c 4 |
133 | |
134 | etc. |
9aec1e06 |
135 | |
136 | |
137 | Actually, this was generated by a particular set of options. You can control |
138 | the formatting of each column, whether you prefer wide or fat, hex or decimal, |
139 | leading zeroes or whatever. |
140 | |
141 | All you need to be able to use this is a C compiler than generates |
1fef88e7 |
142 | BSD/GCC-style stabs. The B<-g> option on native BSD compilers and GCC |
9aec1e06 |
143 | should get this for you. |
144 | |
1fef88e7 |
145 | To learn more, just type a bogus option, like B<-\?>, and a long usage message |
9aec1e06 |
146 | will be provided. There are a fair number of possibilities. |
147 | |
148 | If you're only a C programmer, than this is the end of the message for you. |
149 | You can quit right now, and if you care to, save off the source and run it |
150 | when you feel like it. Or not. |
151 | |
152 | |
153 | |
154 | But if you're a perl programmer, then for you I have something much more |
155 | wondrous than just a structure offset printer. |
156 | |
157 | You see, if you call pstruct by its other incybernation, c2ph, you have a code |
158 | generator that translates C code into perl code! Well, structure and union |
159 | declarations at least, but that's quite a bit. |
160 | |
161 | Prior to this point, anyone programming in perl who wanted to interact |
162 | with C programs, like the kernel, was forced to guess the layouts of |
163 | the C strutures, and then hardwire these into his program. Of course, |
164 | when you took your wonderfully crafted program to a system where the |
165 | sgtty structure was laid out differently, you program broke. Which is |
166 | a shame. |
167 | |
168 | We've had Larry's h2ph translator, which helped, but that only works on |
169 | cpp symbols, not real C, which was also very much needed. What I offer |
170 | you is a symbolic way of getting at all the C structures. I've couched |
171 | them in terms of packages and functions. Consider the following program: |
172 | |
173 | #!/usr/local/bin/perl |
174 | |
175 | require 'syscall.ph'; |
176 | require 'sys/time.ph'; |
177 | require 'sys/resource.ph'; |
178 | |
179 | $ru = "\0" x &rusage'sizeof(); |
180 | |
181 | syscall(&SYS_getrusage, &RUSAGE_SELF, $ru) && die "getrusage: $!"; |
182 | |
183 | @ru = unpack($t = &rusage'typedef(), $ru); |
184 | |
185 | $utime = $ru[ &rusage'ru_utime + &timeval'tv_sec ] |
186 | + ($ru[ &rusage'ru_utime + &timeval'tv_usec ]) / 1e6; |
187 | |
188 | $stime = $ru[ &rusage'ru_stime + &timeval'tv_sec ] |
189 | + ($ru[ &rusage'ru_stime + &timeval'tv_usec ]) / 1e6; |
190 | |
191 | printf "you have used %8.3fs+%8.3fu seconds.\n", $utime, $stime; |
192 | |
193 | |
194 | As you see, the name of the package is the name of the structure. Regular |
1fef88e7 |
195 | fields are just their own names. Plus the following accessor functions are |
9aec1e06 |
196 | provided for your convenience: |
197 | |
198 | struct This takes no arguments, and is merely the number of first-level |
199 | elements in the structure. You would use this for indexing |
200 | into arrays of structures, perhaps like this |
201 | |
202 | |
203 | $usec = $u[ &user'u_utimer |
204 | + (&ITIMER_VIRTUAL * &itimerval'struct) |
205 | + &itimerval'it_value |
206 | + &timeval'tv_usec |
207 | ]; |
208 | |
209 | sizeof Returns the bytes in the structure, or the member if |
210 | you pass it an argument, such as |
211 | |
212 | &rusage'sizeof(&rusage'ru_utime) |
213 | |
214 | typedef This is the perl format definition for passing to pack and |
215 | unpack. If you ask for the typedef of a nothing, you get |
216 | the whole structure, otherwise you get that of the member |
217 | you ask for. Padding is taken care of, as is the magic to |
218 | guarantee that a union is unpacked into all its aliases. |
219 | Bitfields are not quite yet supported however. |
220 | |
221 | offsetof This function is the byte offset into the array of that |
222 | member. You may wish to use this for indexing directly |
223 | into the packed structure with vec() if you're too lazy |
224 | to unpack it. |
225 | |
226 | typeof Not to be confused with the typedef accessor function, this |
227 | one returns the C type of that field. This would allow |
228 | you to print out a nice structured pretty print of some |
229 | structure without knoning anything about it beforehand. |
230 | No args to this one is a noop. Someday I'll post such |
231 | a thing to dump out your u structure for you. |
232 | |
233 | |
234 | The way I see this being used is like basically this: |
235 | |
236 | % h2ph <some_include_file.h > /usr/lib/perl/tmp.ph |
237 | % c2ph some_include_file.h >> /usr/lib/perl/tmp.ph |
238 | % install |
239 | |
240 | It's a little tricker with c2ph because you have to get the includes right. |
241 | I can't know this for your system, but it's not usually too terribly difficult. |
242 | |
243 | The code isn't pretty as I mentioned -- I never thought it would be a 1000- |
244 | line program when I started, or I might not have begun. :-) But I would have |
245 | been less cavalier in how the parts of the program communicated with each |
246 | other, etc. It might also have helped if I didn't have to divine the makeup |
247 | of the stabs on the fly, and then account for micro differences between my |
248 | compiler and gcc. |
249 | |
250 | Anyway, here it is. Should run on perl v4 or greater. Maybe less. |
251 | |
252 | |
1fef88e7 |
253 | --tom |
9aec1e06 |
254 | |
255 | =cut |
256 | |
8e07c86e |
257 | $RCSID = '$Id: c2ph,v 1.7 95/10/28 10:41:47 tchrist Exp Locker: tchrist $'; |
11aea360 |
258 | |
259 | |
260 | ###################################################################### |
261 | |
262 | # some handy data definitions. many of these can be reset later. |
263 | |
264 | $bitorder = 'b'; # ascending; set to B for descending bit fields |
265 | |
9aec1e06 |
266 | %intrinsics = |
11aea360 |
267 | %template = ( |
268 | 'char', 'c', |
269 | 'unsigned char', 'C', |
270 | 'short', 's', |
271 | 'short int', 's', |
272 | 'unsigned short', 'S', |
273 | 'unsigned short int', 'S', |
274 | 'short unsigned int', 'S', |
275 | 'int', 'i', |
276 | 'unsigned int', 'I', |
277 | 'long', 'l', |
278 | 'long int', 'l', |
279 | 'unsigned long', 'L', |
280 | 'unsigned long', 'L', |
281 | 'long unsigned int', 'L', |
282 | 'unsigned long int', 'L', |
283 | 'long long', 'q', |
284 | 'long long int', 'q', |
285 | 'unsigned long long', 'Q', |
286 | 'unsigned long long int', 'Q', |
287 | 'float', 'f', |
288 | 'double', 'd', |
289 | 'pointer', 'p', |
290 | 'null', 'x', |
291 | 'neganull', 'X', |
292 | 'bit', $bitorder, |
9aec1e06 |
293 | ); |
11aea360 |
294 | |
295 | &buildscrunchlist; |
296 | delete $intrinsics{'neganull'}; |
297 | delete $intrinsics{'bit'}; |
298 | delete $intrinsics{'null'}; |
299 | |
300 | # use -s to recompute sizes |
301 | %sizeof = ( |
302 | 'char', '1', |
303 | 'unsigned char', '1', |
304 | 'short', '2', |
305 | 'short int', '2', |
306 | 'unsigned short', '2', |
307 | 'unsigned short int', '2', |
308 | 'short unsigned int', '2', |
309 | 'int', '4', |
310 | 'unsigned int', '4', |
311 | 'long', '4', |
312 | 'long int', '4', |
313 | 'unsigned long', '4', |
314 | 'unsigned long int', '4', |
315 | 'long unsigned int', '4', |
316 | 'long long', '8', |
317 | 'long long int', '8', |
318 | 'unsigned long long', '8', |
319 | 'unsigned long long int', '8', |
320 | 'float', '4', |
321 | 'double', '8', |
322 | 'pointer', '4', |
323 | ); |
324 | |
325 | ($type_width, $member_width, $offset_width, $size_width) = (20, 20, 6, 5); |
326 | |
327 | ($offset_fmt, $size_fmt) = ('d', 'd'); |
328 | |
329 | $indent = 2; |
330 | |
331 | $CC = 'cc'; |
332 | $CFLAGS = '-g -S'; |
333 | $DEFINES = ''; |
334 | |
335 | $perl++ if $0 =~ m#/?c2ph$#; |
336 | |
337 | require 'getopts.pl'; |
338 | |
339 | eval '$'.$1.'$2;' while $ARGV[0] =~ /^([A-Za-z_]+=)(.*)/ && shift; |
340 | |
341 | &Getopts('aixdpvtnws:') || &usage(0); |
342 | |
343 | $opt_d && $debug++; |
344 | $opt_t && $trace++; |
345 | $opt_p && $perl++; |
346 | $opt_v && $verbose++; |
347 | $opt_n && ($perl = 0); |
348 | |
349 | if ($opt_w) { |
350 | ($type_width, $member_width, $offset_width) = (45, 35, 8); |
9aec1e06 |
351 | } |
11aea360 |
352 | if ($opt_x) { |
353 | ($offset_fmt, $offset_width, $size_fmt, $size_width) = ( 'x', '08', 'x', 04 ); |
354 | } |
355 | |
356 | eval '$'.$1.'$2;' while $ARGV[0] =~ /^([A-Za-z_]+=)(.*)/ && shift; |
357 | |
358 | sub PLUMBER { |
359 | select(STDERR); |
360 | print "oops, apperent pager foulup\n"; |
361 | $isatty++; |
362 | &usage(1); |
9aec1e06 |
363 | } |
11aea360 |
364 | |
365 | sub usage { |
366 | local($oops) = @_; |
367 | unless (-t STDOUT) { |
368 | select(STDERR); |
369 | } elsif (!$oops) { |
370 | $isatty++; |
371 | $| = 1; |
372 | print "hit <RETURN> for further explanation: "; |
373 | <STDIN>; |
374 | open (PIPE, "|". ($ENV{PAGER} || 'more')); |
375 | $SIG{PIPE} = PLUMBER; |
376 | select(PIPE); |
9aec1e06 |
377 | } |
11aea360 |
378 | |
379 | print "usage: $0 [-dpnP] [var=val] [files ...]\n"; |
380 | |
381 | exit unless $isatty; |
382 | |
383 | print <<EOF; |
384 | |
385 | Options: |
386 | |
387 | -w wide; short for: type_width=45 member_width=35 offset_width=8 |
388 | -x hex; short for: offset_fmt=x offset_width=08 size_fmt=x size_width=04 |
389 | |
390 | -n do not generate perl code (default when invoked as pstruct) |
391 | -p generate perl code (default when invoked as c2ph) |
392 | -v generate perl code, with C decls as comments |
393 | |
394 | -i do NOT recompute sizes for intrinsic datatypes |
395 | -a dump information on intrinsics also |
396 | |
397 | -t trace execution |
398 | -d spew reams of debugging output |
399 | |
400 | -slist give comma-separated list a structures to dump |
401 | |
402 | |
403 | Var Name Default Value Meaning |
404 | |
405 | EOF |
406 | |
407 | &defvar('CC', 'which_compiler to call'); |
408 | &defvar('CFLAGS', 'how to generate *.s files with stabs'); |
409 | &defvar('DEFINES','any extra cflags or cpp defines, like -I, -D, -U'); |
410 | |
411 | print "\n"; |
412 | |
413 | &defvar('type_width', 'width of type field (column 1)'); |
414 | &defvar('member_width', 'width of member field (column 2)'); |
415 | &defvar('offset_width', 'width of offset field (column 3)'); |
416 | &defvar('size_width', 'width of size field (column 4)'); |
417 | |
418 | print "\n"; |
419 | |
420 | &defvar('offset_fmt', 'sprintf format type for offset'); |
421 | &defvar('size_fmt', 'sprintf format type for size'); |
422 | |
423 | print "\n"; |
424 | |
425 | &defvar('indent', 'how far to indent each nesting level'); |
426 | |
427 | print <<'EOF'; |
428 | |
429 | If any *.[ch] files are given, these will be catted together into |
430 | a temporary *.c file and sent through: |
9aec1e06 |
431 | $CC $CFLAGS $DEFINES |
11aea360 |
432 | and the resulting *.s groped for stab information. If no files are |
433 | supplied, then stdin is read directly with the assumption that it |
434 | contains stab information. All other liens will be ignored. At |
435 | most one *.s file should be supplied. |
436 | |
437 | EOF |
438 | close PIPE; |
439 | exit 1; |
9aec1e06 |
440 | } |
11aea360 |
441 | |
442 | sub defvar { |
443 | local($var, $msg) = @_; |
444 | printf "%-16s%-15s %s\n", $var, eval "\$$var", $msg; |
9aec1e06 |
445 | } |
11aea360 |
446 | |
447 | $recurse = 1; |
448 | |
449 | if (@ARGV) { |
450 | if (grep(!/\.[csh]$/,@ARGV)) { |
451 | warn "Only *.[csh] files expected!\n"; |
452 | &usage; |
9aec1e06 |
453 | } |
11aea360 |
454 | elsif (grep(/\.s$/,@ARGV)) { |
9aec1e06 |
455 | if (@ARGV > 1) { |
11aea360 |
456 | warn "Only one *.s file allowed!\n"; |
457 | &usage; |
458 | } |
9aec1e06 |
459 | } |
11aea360 |
460 | elsif (@ARGV == 1 && $ARGV[0] =~ /\.c$/) { |
461 | local($dir, $file) = $ARGV[0] =~ m#(.*/)?(.*)$#; |
462 | $chdir = "cd $dir; " if $dir; |
463 | &system("$chdir$CC $CFLAGS $DEFINES $file") && exit 1; |
464 | $ARGV[0] =~ s/\.c$/.s/; |
9aec1e06 |
465 | } |
11aea360 |
466 | else { |
467 | $TMP = "/tmp/c2ph.$$.c"; |
468 | &system("cat @ARGV > $TMP") && exit 1; |
469 | &system("cd /tmp; $CC $CFLAGS $DEFINES $TMP") && exit 1; |
470 | unlink $TMP; |
471 | $TMP =~ s/\.c$/.s/; |
472 | @ARGV = ($TMP); |
9aec1e06 |
473 | } |
11aea360 |
474 | } |
475 | |
476 | if ($opt_s) { |
477 | for (split(/[\s,]+/, $opt_s)) { |
478 | $interested{$_}++; |
9aec1e06 |
479 | } |
480 | } |
11aea360 |
481 | |
482 | |
483 | $| = 1 if $debug; |
484 | |
485 | main: { |
486 | |
487 | if ($trace) { |
9aec1e06 |
488 | if (-t && !@ARGV) { |
11aea360 |
489 | print STDERR "reading from your keyboard: "; |
490 | } else { |
491 | print STDERR "reading from " . (@ARGV ? "@ARGV" : "<STDIN>").": "; |
492 | } |
493 | } |
494 | |
495 | STAB: while (<>) { |
496 | if ($trace && !($. % 10)) { |
497 | $lineno = $..''; |
498 | print STDERR $lineno, "\b" x length($lineno); |
9aec1e06 |
499 | } |
11aea360 |
500 | next unless /^\s*\.stabs\s+/; |
501 | $line = $_; |
9aec1e06 |
502 | s/^\s*\.stabs\s+//; |
8e07c86e |
503 | if (s/\\\\"[d,]+$//) { |
504 | $saveline .= $line; |
505 | $savebar = $_; |
506 | next STAB; |
9aec1e06 |
507 | } |
8e07c86e |
508 | if ($saveline) { |
509 | s/^"//; |
510 | $_ = $savebar . $_; |
511 | $line = $saveline; |
9aec1e06 |
512 | } |
513 | &stab; |
8e07c86e |
514 | $savebar = $saveline = undef; |
11aea360 |
515 | } |
516 | print STDERR "$.\n" if $trace; |
517 | unlink $TMP if $TMP; |
518 | |
519 | &compute_intrinsics if $perl && !$opt_i; |
520 | |
521 | print STDERR "resolving types\n" if $trace; |
522 | |
523 | &resolve_types; |
524 | &adjust_start_addrs; |
525 | |
526 | $sum = 2 + $type_width + $member_width; |
9aec1e06 |
527 | $pmask1 = "%-${type_width}s %-${member_width}s"; |
11aea360 |
528 | $pmask2 = "%-${sum}s %${offset_width}${offset_fmt}%s %${size_width}${size_fmt}%s"; |
529 | |
8e07c86e |
530 | |
531 | |
11aea360 |
532 | if ($perl) { |
533 | # resolve template -- should be in stab define order, but even this isn't enough. |
534 | print STDERR "\nbuilding type templates: " if $trace; |
535 | for $i (reverse 0..$#type) { |
536 | next unless defined($name = $type[$i]); |
537 | next unless defined $struct{$name}; |
8e07c86e |
538 | ($iname = $name) =~ s/\..*//; |
11aea360 |
539 | $build_recursed = 0; |
540 | &build_template($name) unless defined $template{&psou($name)} || |
8e07c86e |
541 | $opt_s && !$interested{$iname}; |
9aec1e06 |
542 | } |
11aea360 |
543 | print STDERR "\n\n" if $trace; |
544 | } |
545 | |
546 | print STDERR "dumping structs: " if $trace; |
547 | |
8e07c86e |
548 | local($iam); |
549 | |
550 | |
11aea360 |
551 | |
552 | foreach $name (sort keys %struct) { |
8e07c86e |
553 | ($iname = $name) =~ s/\..*//; |
554 | next if $opt_s && !$interested{$iname}; |
11aea360 |
555 | print STDERR "$name " if $trace; |
556 | |
557 | undef @sizeof; |
558 | undef @typedef; |
559 | undef @offsetof; |
560 | undef @indices; |
561 | undef @typeof; |
8e07c86e |
562 | undef @fieldnames; |
11aea360 |
563 | |
564 | $mname = &munge($name); |
565 | |
566 | $fname = &psou($name); |
567 | |
568 | print "# " if $perl && $verbose; |
569 | $pcode = ''; |
9aec1e06 |
570 | print "$fname {\n" if !$perl || $verbose; |
11aea360 |
571 | $template{$fname} = &scrunch($template{$fname}) if $perl; |
9aec1e06 |
572 | &pstruct($name,$name,0); |
11aea360 |
573 | print "# " if $perl && $verbose; |
9aec1e06 |
574 | print "}\n" if !$perl || $verbose; |
11aea360 |
575 | print "\n" if $perl && $verbose; |
576 | |
577 | if ($perl) { |
578 | print "$pcode"; |
579 | |
580 | printf("\nsub %-32s { %4d; }\n\n", "${mname}'struct", $countof{$name}); |
581 | |
582 | print <<EOF; |
9aec1e06 |
583 | sub ${mname}'typedef { |
11aea360 |
584 | local(\$${mname}'index) = shift; |
9aec1e06 |
585 | defined \$${mname}'index |
586 | ? \$${mname}'typedef[\$${mname}'index] |
11aea360 |
587 | : \$${mname}'typedef; |
588 | } |
589 | EOF |
590 | |
591 | print <<EOF; |
9aec1e06 |
592 | sub ${mname}'sizeof { |
11aea360 |
593 | local(\$${mname}'index) = shift; |
9aec1e06 |
594 | defined \$${mname}'index |
595 | ? \$${mname}'sizeof[\$${mname}'index] |
11aea360 |
596 | : \$${mname}'sizeof; |
597 | } |
598 | EOF |
599 | |
600 | print <<EOF; |
9aec1e06 |
601 | sub ${mname}'offsetof { |
11aea360 |
602 | local(\$${mname}'index) = shift; |
9aec1e06 |
603 | defined \$${mname}index |
604 | ? \$${mname}'offsetof[\$${mname}'index] |
11aea360 |
605 | : \$${mname}'sizeof; |
606 | } |
607 | EOF |
608 | |
609 | print <<EOF; |
9aec1e06 |
610 | sub ${mname}'typeof { |
11aea360 |
611 | local(\$${mname}'index) = shift; |
9aec1e06 |
612 | defined \$${mname}index |
613 | ? \$${mname}'typeof[\$${mname}'index] |
11aea360 |
614 | : '$name'; |
615 | } |
616 | EOF |
9aec1e06 |
617 | |
8e07c86e |
618 | print <<EOF; |
9aec1e06 |
619 | sub ${mname}'fieldnames { |
620 | \@${mname}'fieldnames; |
8e07c86e |
621 | } |
622 | EOF |
623 | |
624 | $iam = ($isastruct{$name} && 's') || ($isaunion{$name} && 'u'); |
9aec1e06 |
625 | |
8e07c86e |
626 | print <<EOF; |
9aec1e06 |
627 | sub ${mname}'isastruct { |
628 | '$iam'; |
8e07c86e |
629 | } |
630 | EOF |
11aea360 |
631 | |
9aec1e06 |
632 | print "\$${mname}'typedef = '" . &scrunch($template{$fname}) |
11aea360 |
633 | . "';\n"; |
634 | |
635 | print "\$${mname}'sizeof = $sizeof{$name};\n\n"; |
636 | |
637 | |
638 | print "\@${mname}'indices = (", &squishseq(@indices), ");\n"; |
639 | |
640 | print "\n"; |
641 | |
642 | print "\@${mname}'typedef[\@${mname}'indices] = (", |
643 | join("\n\t", '', @typedef), "\n );\n\n"; |
644 | print "\@${mname}'sizeof[\@${mname}'indices] = (", |
645 | join("\n\t", '', @sizeof), "\n );\n\n"; |
646 | print "\@${mname}'offsetof[\@${mname}'indices] = (", |
647 | join("\n\t", '', @offsetof), "\n );\n\n"; |
648 | print "\@${mname}'typeof[\@${mname}'indices] = (", |
649 | join("\n\t", '', @typeof), "\n );\n\n"; |
8e07c86e |
650 | print "\@${mname}'fieldnames[\@${mname}'indices] = (", |
651 | join("\n\t", '', @fieldnames), "\n );\n\n"; |
11aea360 |
652 | |
653 | $template_printed{$fname}++; |
654 | $size_printed{$fname}++; |
9aec1e06 |
655 | } |
11aea360 |
656 | print "\n"; |
657 | } |
658 | |
659 | print STDERR "\n" if $trace; |
660 | |
9aec1e06 |
661 | unless ($perl && $opt_a) { |
8e07c86e |
662 | print "\n1;\n" if $perl; |
11aea360 |
663 | exit; |
664 | } |
665 | |
666 | |
667 | |
668 | foreach $name (sort bysizevalue keys %intrinsics) { |
669 | next if $size_printed{$name}; |
670 | print '$',&munge($name),"'sizeof = ", $sizeof{$name}, ";\n"; |
671 | } |
672 | |
673 | print "\n"; |
674 | |
675 | sub bysizevalue { $sizeof{$a} <=> $sizeof{$b}; } |
676 | |
677 | |
678 | foreach $name (sort keys %intrinsics) { |
679 | print '$',&munge($name),"'typedef = '", $template{$name}, "';\n"; |
680 | } |
681 | |
8e07c86e |
682 | print "\n1;\n" if $perl; |
9aec1e06 |
683 | |
11aea360 |
684 | exit; |
685 | } |
686 | |
687 | ######################################################################################## |
688 | |
689 | |
690 | sub stab { |
8e07c86e |
691 | next unless $continued || /:[\$\w]+(\(\d+,\d+\))?=[\*\$\w]+/; # (\d+,\d+) is for sun |
11aea360 |
692 | s/"// || next; |
693 | s/",([x\d]+),([x\d]+),([x\d]+),.*// || next; |
694 | |
695 | next if /^\s*$/; |
696 | |
697 | $size = $3 if $3; |
8e07c86e |
698 | $_ = $continued . $_ if length($continued); |
699 | if (s/\\\\$//) { |
700 | # if last 2 chars of string are '\\' then stab is continued |
701 | # in next stab entry |
702 | chop; |
703 | $continued = $_; |
704 | next; |
705 | } |
706 | $continued = ''; |
11aea360 |
707 | |
708 | |
709 | $line = $_; |
710 | |
711 | if (($name, $pdecl) = /^([\$ \w]+):[tT]((\d+)(=[rufs*](\d+))+)$/) { |
712 | print "$name is a typedef for some funky pointers: $pdecl\n" if $debug; |
713 | &pdecl($pdecl); |
714 | next; |
715 | } |
716 | |
717 | |
718 | |
9aec1e06 |
719 | if (/(([ \w]+):t(\d+|\(\d+,\d+\)))=r?(\d+|\(\d+,\d+\))(;\d+;\d+;)?/) { |
11aea360 |
720 | local($ident) = $2; |
721 | push(@intrinsics, $ident); |
722 | $typeno = &typeno($3); |
723 | $type[$typeno] = $ident; |
9aec1e06 |
724 | print STDERR "intrinsic $ident in new type $typeno\n" if $debug; |
11aea360 |
725 | next; |
726 | } |
727 | |
9aec1e06 |
728 | if (($name, $typeordef, $typeno, $extra, $struct, $_) |
729 | = /^([\$ \w]+):([ustT])(\d+|\(\d+,\d+\))(=[rufs*](\d+))?(.*)$/) |
11aea360 |
730 | { |
731 | $typeno = &typeno($typeno); # sun foolery |
9aec1e06 |
732 | } |
11aea360 |
733 | elsif (/^[\$\w]+:/) { |
734 | next; # variable |
735 | } |
9aec1e06 |
736 | else { |
11aea360 |
737 | warn "can't grok stab: <$_> in: $line " if $_; |
738 | next; |
9aec1e06 |
739 | } |
11aea360 |
740 | |
741 | #warn "got size $size for $name\n"; |
742 | $sizeof{$name} = $size if $size; |
743 | |
744 | s/;[-\d]*;[-\d]*;$//; # we don't care about ranges |
745 | |
746 | $typenos{$name} = $typeno; |
747 | |
748 | unless (defined $type[$typeno]) { |
749 | &panic("type 0??") unless $typeno; |
750 | $type[$typeno] = $name unless defined $type[$typeno]; |
751 | printf "new type $typeno is $name" if $debug; |
752 | if ($extra =~ /\*/ && defined $type[$struct]) { |
753 | print ", a typedef for a pointer to " , $type[$struct] if $debug; |
754 | } |
755 | } else { |
756 | printf "%s is type %d", $name, $typeno if $debug; |
757 | print ", a typedef for " , $type[$typeno] if $debug; |
9aec1e06 |
758 | } |
11aea360 |
759 | print "\n" if $debug; |
760 | #next unless $extra =~ /[su*]/; |
761 | |
762 | #$type[$struct] = $name; |
763 | |
764 | if ($extra =~ /[us*]/) { |
765 | &sou($name, $extra); |
766 | $_ = &sdecl($name, $_, 0); |
767 | } |
768 | elsif (/^=ar/) { |
769 | print "it's a bare array typedef -- that's pretty sick\n" if $debug; |
770 | $_ = "$typeno$_"; |
771 | $scripts = ''; |
772 | $_ = &adecl($_,1); |
773 | |
774 | } |
775 | elsif (s/((\w+):t(\d+|\(\d+,\d+\)))?=r?(;\d+;\d+;)?//) { # the ?'s are for gcc |
776 | push(@intrinsics, $2); |
777 | $typeno = &typeno($3); |
778 | $type[$typeno] = $2; |
9aec1e06 |
779 | print STDERR "intrinsic $2 in new type $typeno\n" if $debug; |
11aea360 |
780 | } |
8e07c86e |
781 | elsif (s/^=e//) { # blessed be thy compiler; mine won't do this |
11aea360 |
782 | &edecl; |
9aec1e06 |
783 | } |
11aea360 |
784 | else { |
785 | warn "Funny remainder for $name on line $_ left in $line " if $_; |
9aec1e06 |
786 | } |
11aea360 |
787 | } |
788 | |
789 | sub typeno { # sun thinks types are (0,27) instead of just 27 |
790 | local($_) = @_; |
791 | s/\(\d+,(\d+)\)/$1/; |
792 | $_; |
9aec1e06 |
793 | } |
11aea360 |
794 | |
795 | sub pstruct { |
9aec1e06 |
796 | local($what,$prefix,$base) = @_; |
797 | local($field, $fieldname, $typeno, $count, $offset, $entry); |
11aea360 |
798 | local($fieldtype); |
9aec1e06 |
799 | local($type, $tname); |
11aea360 |
800 | local($mytype, $mycount, $entry2); |
801 | local($struct_count) = 0; |
802 | local($pad, $revpad, $length, $prepad, $lastoffset, $lastlength, $fmt); |
803 | local($bits,$bytes); |
804 | local($template); |
805 | |
806 | |
807 | local($mname) = &munge($name); |
808 | |
9aec1e06 |
809 | sub munge { |
11aea360 |
810 | local($_) = @_; |
811 | s/[\s\$\.]/_/g; |
812 | $_; |
813 | } |
814 | |
815 | local($sname) = &psou($what); |
816 | |
817 | $nesting++; |
818 | |
819 | for $field (split(/;/, $struct{$what})) { |
820 | $pad = $prepad = 0; |
9aec1e06 |
821 | $entry = ''; |
822 | ($fieldname, $typeno, $count, $offset, $length) = split(/,/, $field); |
11aea360 |
823 | |
824 | $type = $type[$typeno]; |
825 | |
826 | $type =~ /([^[]*)(\[.*\])?/; |
827 | $mytype = $1; |
828 | $count .= $2; |
829 | $fieldtype = &psou($mytype); |
830 | |
831 | local($fname) = &psou($name); |
832 | |
833 | if ($build_templates) { |
834 | |
9aec1e06 |
835 | $pad = ($offset - ($lastoffset + $lastlength))/8 |
11aea360 |
836 | if defined $lastoffset; |
837 | |
838 | if (! $finished_template{$sname}) { |
839 | if ($isaunion{$what}) { |
840 | $template{$sname} .= 'X' x $revpad . ' ' if $revpad; |
841 | } else { |
842 | $template{$sname} .= 'x' x $pad . ' ' if $pad; |
843 | } |
844 | } |
845 | |
8e07c86e |
846 | $template = &fetch_template($type); |
847 | &repeat_template($template,$count); |
11aea360 |
848 | |
849 | if (! $finished_template{$sname}) { |
850 | $template{$sname} .= $template; |
851 | } |
852 | |
853 | $revpad = $length/8 if $isaunion{$what}; |
854 | |
855 | ($lastoffset, $lastlength) = ($offset, $length); |
856 | |
9aec1e06 |
857 | } else { |
11aea360 |
858 | print '# ' if $perl && $verbose; |
859 | $entry = sprintf($pmask1, |
860 | ' ' x ($nesting * $indent) . $fieldtype, |
9aec1e06 |
861 | "$prefix.$fieldname" . $count); |
11aea360 |
862 | |
9aec1e06 |
863 | $entry =~ s/(\*+)( )/$2$1/; |
11aea360 |
864 | |
865 | printf $pmask2, |
866 | $entry, |
867 | ($base+$offset)/8, |
868 | ($bits = ($base+$offset)%8) ? ".$bits" : " ", |
869 | $length/8, |
870 | ($bits = $length % 8) ? ".$bits": "" |
871 | if !$perl || $verbose; |
872 | |
8e07c86e |
873 | if ($perl) { |
874 | $template = &fetch_template($type); |
875 | &repeat_template($template,$count); |
876 | } |
11aea360 |
877 | |
878 | if ($perl && $nesting == 1) { |
8e07c86e |
879 | |
11aea360 |
880 | push(@sizeof, int($length/8) .",\t# $fieldname"); |
881 | push(@offsetof, int($offset/8) .",\t# $fieldname"); |
8e07c86e |
882 | local($little) = &scrunch($template); |
883 | push(@typedef, "'$little', \t# $fieldname"); |
11aea360 |
884 | $type =~ s/(struct|union) //; |
8e07c86e |
885 | push(@typeof, "'$mytype" . ($count ? $count : '') . |
11aea360 |
886 | "',\t# $fieldname"); |
8e07c86e |
887 | push(@fieldnames, "'$fieldname',"); |
11aea360 |
888 | } |
889 | |
890 | print ' ', ' ' x $indent x $nesting, $template |
891 | if $perl && $verbose; |
892 | |
893 | print "\n" if !$perl || $verbose; |
894 | |
9aec1e06 |
895 | } |
11aea360 |
896 | if ($perl) { |
897 | local($mycount) = defined $struct{$mytype} ? $countof{$mytype} : 1; |
898 | $mycount *= &scripts2count($count) if $count; |
899 | if ($nesting==1 && !$build_templates) { |
9aec1e06 |
900 | $pcode .= sprintf("sub %-32s { %4d; }\n", |
11aea360 |
901 | "${mname}'${fieldname}", $struct_count); |
902 | push(@indices, $struct_count); |
903 | } |
904 | $struct_count += $mycount; |
9aec1e06 |
905 | } |
11aea360 |
906 | |
907 | |
9aec1e06 |
908 | &pstruct($type, "$prefix.$fieldname", $base+$offset) |
909 | if $recurse && defined $struct{$type}; |
11aea360 |
910 | } |
911 | |
912 | $countof{$what} = $struct_count unless defined $countof{$whati}; |
913 | |
914 | $template{$sname} .= '$' if $build_templates; |
915 | $finished_template{$sname}++; |
916 | |
917 | if ($build_templates && !defined $sizeof{$name}) { |
918 | local($fmt) = &scrunch($template{$sname}); |
919 | print STDERR "no size for $name, punting with $fmt..." if $debug; |
920 | eval '$sizeof{$name} = length(pack($fmt, ()))'; |
921 | if ($@) { |
922 | chop $@; |
923 | warn "couldn't get size for \$name: $@"; |
924 | } else { |
925 | print STDERR $sizeof{$name}, "\n" if $debUg; |
926 | } |
9aec1e06 |
927 | } |
11aea360 |
928 | |
929 | --$nesting; |
930 | } |
931 | |
932 | |
933 | sub psize { |
9aec1e06 |
934 | local($me) = @_; |
11aea360 |
935 | local($amstruct) = $struct{$me} ? 'struct ' : ''; |
936 | |
9aec1e06 |
937 | print '$sizeof{\'', $amstruct, $me, '\'} = '; |
938 | printf "%d;\n", $sizeof{$me}; |
11aea360 |
939 | } |
940 | |
941 | sub pdecl { |
942 | local($pdecl) = @_; |
943 | local(@pdecls); |
944 | local($tname); |
945 | |
946 | warn "pdecl: $pdecl\n" if $debug; |
947 | |
948 | $pdecl =~ s/\(\d+,(\d+)\)/$1/g; |
9aec1e06 |
949 | $pdecl =~ s/\*//g; |
950 | @pdecls = split(/=/, $pdecl); |
11aea360 |
951 | $typeno = $pdecls[0]; |
952 | $tname = pop @pdecls; |
953 | |
9aec1e06 |
954 | if ($tname =~ s/^f//) { $tname = "$tname&"; } |
955 | #else { $tname = "$tname*"; } |
11aea360 |
956 | |
957 | for (reverse @pdecls) { |
9aec1e06 |
958 | $tname .= s/^f// ? "&" : "*"; |
11aea360 |
959 | #$tname =~ s/^f(.*)/$1&/; |
960 | print "type[$_] is $tname\n" if $debug; |
961 | $type[$_] = $tname unless defined $type[$_]; |
9aec1e06 |
962 | } |
11aea360 |
963 | } |
964 | |
965 | |
966 | |
967 | sub adecl { |
968 | ($arraytype, $unknown, $lower, $upper) = (); |
969 | #local($typeno); |
970 | # global $typeno, @type |
971 | local($_, $typedef) = @_; |
972 | |
8e07c86e |
973 | while (s/^((\d+|\(\d+,\d+\))=)?ar(\d+|\(\d+,\d+\));//) { |
9aec1e06 |
974 | ($arraytype, $unknown) = ($2, $3); |
8e07c86e |
975 | $arraytype = &typeno($arraytype); |
976 | $unknown = &typeno($unknown); |
11aea360 |
977 | if (s/^(\d+);(\d+);//) { |
9aec1e06 |
978 | ($lower, $upper) = ($1, $2); |
979 | $scripts .= '[' . ($upper+1) . ']'; |
11aea360 |
980 | } else { |
9aec1e06 |
981 | warn "can't find array bounds: $_"; |
982 | } |
11aea360 |
983 | } |
8e07c86e |
984 | if (s/^([(,)\d*f=]*),(\d+),(\d+);//) { |
9aec1e06 |
985 | ($start, $length) = ($2, $3); |
8e07c86e |
986 | $whatis = $1; |
987 | if ($whatis =~ /^(\d+|\(\d+,\d+\))=/) { |
988 | $typeno = &typeno($1); |
11aea360 |
989 | &pdecl($whatis); |
990 | } else { |
8e07c86e |
991 | $typeno = &typeno($whatis); |
11aea360 |
992 | } |
993 | } elsif (s/^(\d+)(=[*suf]\d*)//) { |
9aec1e06 |
994 | local($whatis) = $2; |
11aea360 |
995 | |
996 | if ($whatis =~ /[f*]/) { |
9aec1e06 |
997 | &pdecl($whatis); |
998 | } elsif ($whatis =~ /[su]/) { # |
999 | print "$prefix.$fieldname is an array$scripts anon structs; disgusting\n" |
11aea360 |
1000 | if $debug; |
1001 | #$type[$typeno] = $name unless defined $type[$typeno]; |
1002 | ##printf "new type $typeno is $name" if $debug; |
1003 | $typeno = $1; |
1004 | $type[$typeno] = "$prefix.$fieldname"; |
1005 | local($name) = $type[$typeno]; |
1006 | &sou($name, $whatis); |
1007 | $_ = &sdecl($name, $_, $start+$offset); |
1008 | 1; |
1009 | $start = $start{$name}; |
1010 | $offset = $sizeof{$name}; |
1011 | $length = $offset; |
1012 | } else { |
1013 | warn "what's this? $whatis in $line "; |
9aec1e06 |
1014 | } |
11aea360 |
1015 | } elsif (/^\d+$/) { |
1016 | $typeno = $_; |
1017 | } else { |
1018 | warn "bad array stab: $_ in $line "; |
1019 | next STAB; |
9aec1e06 |
1020 | } |
11aea360 |
1021 | #local($wasdef) = defined($type[$typeno]) && $debug; |
9aec1e06 |
1022 | #if ($typedef) { |
11aea360 |
1023 | #print "redefining $type[$typeno] to " if $wasdef; |
1024 | #$type[$typeno] = "$whatis$scripts"; # unless defined $type[$typeno]; |
1025 | #print "$type[$typeno]\n" if $wasdef; |
1026 | #} else { |
1027 | #$type[$arraytype] = $type[$typeno] unless defined $type[$arraytype]; |
1028 | #} |
1029 | $type[$arraytype] = "$type[$typeno]$scripts" if defined $type[$typeno]; |
1030 | print "type[$arraytype] is $type[$arraytype]\n" if $debug; |
1031 | print "$prefix.$fieldname is an array of $type[$arraytype]\n" if $debug; |
1032 | $_; |
1033 | } |
1034 | |
1035 | |
1036 | |
1037 | sub sdecl { |
1038 | local($prefix, $_, $offset) = @_; |
1039 | |
1040 | local($fieldname, $scripts, $type, $arraytype, $unknown, |
1041 | $whatis, $pdecl, $upper,$lower, $start,$length) = (); |
1042 | local($typeno,$sou); |
1043 | |
1044 | |
1045 | SFIELD: |
1046 | while (/^([^;]+);/) { |
1047 | $scripts = ''; |
1048 | warn "sdecl $_\n" if $debug; |
9aec1e06 |
1049 | if (s/^([\$\w]+)://) { |
11aea360 |
1050 | $fieldname = $1; |
9aec1e06 |
1051 | } elsif (s/(\d+)=([us])(\d+|\(\d+,\d+\))//) { # |
11aea360 |
1052 | $typeno = &typeno($1); |
1053 | $type[$typeno] = "$prefix.$fieldname"; |
1054 | local($name) = "$prefix.$fieldname"; |
1055 | &sou($name,$2); |
1056 | $_ = &sdecl("$prefix.$fieldname", $_, $start+$offset); |
1057 | $start = $start{$name}; |
1058 | $offset += $sizeof{$name}; |
1059 | #print "done with anon, start is $start, offset is $offset\n"; |
1060 | #next SFIELD; |
1061 | } else { |
1062 | warn "weird field $_ of $line" if $debug; |
1063 | next STAB; |
1064 | #$fieldname = &gensym; |
1065 | #$_ = &sdecl("$prefix.$fieldname", $_, $start+$offset); |
1066 | } |
1067 | |
8e07c86e |
1068 | if (/^(\d+|\(\d+,\d+\))=ar/) { |
11aea360 |
1069 | $_ = &adecl($_); |
1070 | } |
1071 | elsif (s/^(\d+|\(\d+,\d+\))?,(\d+),(\d+);//) { |
8e07c86e |
1072 | ($start, $length) = ($2, $3); |
1073 | &panic("no length?") unless $length; |
1074 | $typeno = &typeno($1) if $1; |
1075 | } |
1076 | elsif (s/^(\d+)=xs\w+:,(\d+),(\d+);//) { |
9aec1e06 |
1077 | ($start, $length) = ($2, $3); |
11aea360 |
1078 | &panic("no length?") unless $length; |
1079 | $typeno = &typeno($1) if $1; |
1080 | } |
1081 | elsif (s/^((\d+|\(\d+,\d+\))(=[*f](\d+|\(\d+,\d+\)))+),(\d+),(\d+);//) { |
9aec1e06 |
1082 | ($pdecl, $start, $length) = ($1,$5,$6); |
1083 | &pdecl($pdecl); |
11aea360 |
1084 | } |
1085 | elsif (s/(\d+)=([us])(\d+|\(\d+,\d+\))//) { # the dratted anon struct |
1086 | ($typeno, $sou) = ($1, $2); |
1087 | $typeno = &typeno($typeno); |
1088 | if (defined($type[$typeno])) { |
1089 | warn "now how did we get type $1 in $fieldname of $line?"; |
1090 | } else { |
1091 | print "anon type $typeno is $prefix.$fieldname\n" if $debug; |
1092 | $type[$typeno] = "$prefix.$fieldname" unless defined $type[$typeno]; |
1093 | }; |
1094 | local($name) = "$prefix.$fieldname"; |
1095 | &sou($name,$sou); |
1096 | print "anon ".($isastruct{$name}) ? "struct":"union"." for $prefix.$fieldname\n" if $debug; |
1097 | $type[$typeno] = "$prefix.$fieldname"; |
9aec1e06 |
1098 | $_ = &sdecl("$prefix.$fieldname", $_, $start+$offset); |
11aea360 |
1099 | $start = $start{$name}; |
1100 | $length = $sizeof{$name}; |
1101 | } |
1102 | else { |
9aec1e06 |
1103 | warn "can't grok stab for $name ($_) in line $line "; |
1104 | next STAB; |
11aea360 |
1105 | } |
1106 | |
1107 | &panic("no length for $prefix.$fieldname") unless $length; |
1108 | $struct{$name} .= join(',', $fieldname, $typeno, $scripts, $start, $length) . ';'; |
1109 | } |
1110 | if (s/;\d*,(\d+),(\d+);//) { |
9aec1e06 |
1111 | local($start, $size) = ($1, $2); |
11aea360 |
1112 | $sizeof{$prefix} = $size; |
9aec1e06 |
1113 | print "start of $prefix is $start, size of $sizeof{$prefix}\n" if $debug; |
1114 | $start{$prefix} = $start; |
1115 | } |
11aea360 |
1116 | $_; |
1117 | } |
1118 | |
1119 | sub edecl { |
1120 | s/;$//; |
1121 | $enum{$name} = $_; |
1122 | $_ = ''; |
9aec1e06 |
1123 | } |
11aea360 |
1124 | |
1125 | sub resolve_types { |
1126 | local($sou); |
1127 | for $i (0 .. $#type) { |
1128 | next unless defined $type[$i]; |
1129 | $_ = $type[$i]; |
1130 | unless (/\d/) { |
1131 | print "type[$i] $type[$i]\n" if $debug; |
1132 | next; |
1133 | } |
1134 | print "type[$i] $_ ==> " if $debug; |
1135 | s/^(\d+)(\**)\&\*(\**)/"$2($3".&type($1) . ')()'/e; |
9aec1e06 |
1136 | s/^(\d+)\&/&type($1)/e; |
1137 | s/^(\d+)/&type($1)/e; |
11aea360 |
1138 | s/(\*+)([^*]+)(\*+)/$1$3$2/; |
1139 | s/\((\*+)(\w+)(\*+)\)/$3($1$2)/; |
1140 | s/^(\d+)([\*\[].*)/&type($1).$2/e; |
1141 | #s/(\d+)(\*|(\[[\[\]\d\*]+]\])+)/&type($1).$2/ge; |
1142 | $type[$i] = $_; |
1143 | print "$_\n" if $debug; |
1144 | } |
1145 | } |
9aec1e06 |
1146 | sub type { &psou($type[$_[0]] || "<UNDEFINED>"); } |
11aea360 |
1147 | |
1148 | sub adjust_start_addrs { |
1149 | for (sort keys %start) { |
1150 | ($basename = $_) =~ s/\.[^.]+$//; |
1151 | $start{$_} += $start{$basename}; |
1152 | print "start: $_ @ $start{$_}\n" if $debug; |
1153 | } |
1154 | } |
1155 | |
1156 | sub sou { |
1157 | local($what, $_) = @_; |
1158 | /u/ && $isaunion{$what}++; |
1159 | /s/ && $isastruct{$what}++; |
1160 | } |
1161 | |
1162 | sub psou { |
1163 | local($what) = @_; |
1164 | local($prefix) = ''; |
1165 | if ($isaunion{$what}) { |
1166 | $prefix = 'union '; |
1167 | } elsif ($isastruct{$what}) { |
1168 | $prefix = 'struct '; |
1169 | } |
1170 | $prefix . $what; |
1171 | } |
1172 | |
1173 | sub scrunch { |
1174 | local($_) = @_; |
1175 | |
8e07c86e |
1176 | return '' if $_ eq ''; |
1177 | |
11aea360 |
1178 | study; |
1179 | |
1180 | s/\$//g; |
1181 | s/ / /g; |
1182 | 1 while s/(\w) \1/$1$1/g; |
1183 | |
1184 | # i wanna say this, but perl resists my efforts: |
1185 | # s/(\w)(\1+)/$2 . length($1)/ge; |
1186 | |
1187 | &quick_scrunch; |
1188 | |
1189 | s/ $//; |
1190 | |
1191 | $_; |
1192 | } |
1193 | |
1194 | sub buildscrunchlist { |
1195 | $scrunch_code = "sub quick_scrunch {\n"; |
1196 | for (values %intrinsics) { |
4633a7c4 |
1197 | $scrunch_code .= "\ts/(${_}{2,})/'$_' . length(\$1)/ge;\n"; |
9aec1e06 |
1198 | } |
11aea360 |
1199 | $scrunch_code .= "}\n"; |
1200 | print "$scrunch_code" if $debug; |
1201 | eval $scrunch_code; |
1202 | &panic("can't eval scrunch_code $@ \nscrunch_code") if $@; |
9aec1e06 |
1203 | } |
11aea360 |
1204 | |
1205 | sub fetch_template { |
1206 | local($mytype) = @_; |
1207 | local($fmt); |
1208 | local($count) = 1; |
1209 | |
1210 | &panic("why do you care?") unless $perl; |
1211 | |
1212 | if ($mytype =~ s/(\[\d+\])+$//) { |
1213 | $count .= $1; |
9aec1e06 |
1214 | } |
11aea360 |
1215 | |
1216 | if ($mytype =~ /\*/) { |
1217 | $fmt = $template{'pointer'}; |
9aec1e06 |
1218 | } |
11aea360 |
1219 | elsif (defined $template{$mytype}) { |
1220 | $fmt = $template{$mytype}; |
9aec1e06 |
1221 | } |
11aea360 |
1222 | elsif (defined $struct{$mytype}) { |
1223 | if (!defined $template{&psou($mytype)}) { |
1224 | &build_template($mytype) unless $mytype eq $name; |
9aec1e06 |
1225 | } |
11aea360 |
1226 | elsif ($template{&psou($mytype)} !~ /\$$/) { |
1227 | #warn "incomplete template for $mytype\n"; |
9aec1e06 |
1228 | } |
11aea360 |
1229 | $fmt = $template{&psou($mytype)} || '?'; |
9aec1e06 |
1230 | } |
11aea360 |
1231 | else { |
1232 | warn "unknown fmt for $mytype\n"; |
1233 | $fmt = '?'; |
9aec1e06 |
1234 | } |
11aea360 |
1235 | |
1236 | $fmt x $count . ' '; |
1237 | } |
1238 | |
1239 | sub compute_intrinsics { |
1240 | local($TMP) = "/tmp/c2ph-i.$$.c"; |
1241 | open (TMP, ">$TMP") || die "can't open $TMP: $!"; |
1242 | select(TMP); |
1243 | |
1244 | print STDERR "computing intrinsic sizes: " if $trace; |
1245 | |
1246 | undef %intrinsics; |
1247 | |
1248 | print <<'EOF'; |
1249 | main() { |
1250 | char *mask = "%d %s\n"; |
1251 | EOF |
1252 | |
1253 | for $type (@intrinsics) { |
88793d73 |
1254 | next if !$type || $type eq 'void' || $type =~ /complex/; # sun stuff |
11aea360 |
1255 | print <<"EOF"; |
1256 | printf(mask,sizeof($type), "$type"); |
1257 | EOF |
9aec1e06 |
1258 | } |
11aea360 |
1259 | |
1260 | print <<'EOF'; |
1261 | printf(mask,sizeof(char *), "pointer"); |
1262 | exit(0); |
1263 | } |
1264 | EOF |
1265 | close TMP; |
1266 | |
1267 | select(STDOUT); |
1268 | open(PIPE, "cd /tmp && $CC $TMP && /tmp/a.out|"); |
1269 | while (<PIPE>) { |
1270 | chop; |
1271 | split(' ',$_,2);; |
1272 | print "intrinsic $_[1] is size $_[0]\n" if $debug; |
1273 | $sizeof{$_[1]} = $_[0]; |
1274 | $intrinsics{$_[1]} = $template{$_[0]}; |
9aec1e06 |
1275 | } |
11aea360 |
1276 | close(PIPE) || die "couldn't read intrinsics!"; |
1277 | unlink($TMP, '/tmp/a.out'); |
1278 | print STDERR "done\n" if $trace; |
9aec1e06 |
1279 | } |
11aea360 |
1280 | |
1281 | sub scripts2count { |
1282 | local($_) = @_; |
1283 | |
1284 | s/^\[//; |
1285 | s/\]$//; |
1286 | s/\]\[/*/g; |
1287 | $_ = eval; |
1288 | &panic("$_: $@") if $@; |
1289 | $_; |
1290 | } |
1291 | |
1292 | sub system { |
1293 | print STDERR "@_\n" if $trace; |
1294 | system @_; |
9aec1e06 |
1295 | } |
11aea360 |
1296 | |
9aec1e06 |
1297 | sub build_template { |
11aea360 |
1298 | local($name) = @_; |
1299 | |
1300 | &panic("already got a template for $name") if defined $template{$name}; |
1301 | |
1302 | local($build_templates) = 1; |
1303 | |
1304 | local($lparen) = '(' x $build_recursed; |
1305 | local($rparen) = ')' x $build_recursed; |
1306 | |
1307 | print STDERR "$lparen$name$rparen " if $trace; |
1308 | $build_recursed++; |
1309 | &pstruct($name,$name,0); |
1310 | print STDERR "TEMPLATE for $name is ", $template{&psou($name)}, "\n" if $debug; |
1311 | --$build_recursed; |
1312 | } |
1313 | |
1314 | |
1315 | sub panic { |
1316 | |
1317 | select(STDERR); |
1318 | |
1319 | print "\npanic: @_\n"; |
1320 | |
1321 | exit 1 if $] <= 4.003; # caller broken |
1322 | |
1323 | local($i,$_); |
1324 | local($p,$f,$l,$s,$h,$a,@a,@sub); |
1325 | for ($i = 0; ($p,$f,$l,$s,$h,$w) = caller($i); $i++) { |
1326 | @a = @DB'args; |
1327 | for (@a) { |
1328 | if (/^StB\000/ && length($_) == length($_main{'_main'})) { |
1329 | $_ = sprintf("%s",$_); |
1330 | } |
1331 | else { |
1332 | s/'/\\'/g; |
1333 | s/([^\0]*)/'$1'/ unless /^-?[\d.]+$/; |
1334 | s/([\200-\377])/sprintf("M-%c",ord($1)&0177)/eg; |
1335 | s/([\0-\37\177])/sprintf("^%c",ord($1)^64)/eg; |
1336 | } |
1337 | } |
1338 | $w = $w ? '@ = ' : '$ = '; |
1339 | $a = $h ? '(' . join(', ', @a) . ')' : ''; |
1340 | push(@sub, "$w&$s$a from file $f line $l\n"); |
1341 | last if $signal; |
1342 | } |
1343 | for ($i=0; $i <= $#sub; $i++) { |
1344 | last if $signal; |
1345 | print $sub[$i]; |
1346 | } |
1347 | exit 1; |
9aec1e06 |
1348 | } |
11aea360 |
1349 | |
1350 | sub squishseq { |
1351 | local($num); |
1352 | local($last) = -1e8; |
1353 | local($string); |
1354 | local($seq) = '..'; |
1355 | |
1356 | while (defined($num = shift)) { |
1357 | if ($num == ($last + 1)) { |
1358 | $string .= $seq unless $inseq++; |
1359 | $last = $num; |
1360 | next; |
1361 | } elsif ($inseq) { |
1362 | $string .= $last unless $last == -1e8; |
1363 | } |
1364 | |
1365 | $string .= ',' if defined $string; |
1366 | $string .= $num; |
1367 | $last = $num; |
1368 | $inseq = 0; |
1369 | } |
1370 | $string .= $last if $inseq && $last != -e18; |
1371 | $string; |
1372 | } |
8e07c86e |
1373 | |
1374 | sub repeat_template { |
1375 | # local($template, $scripts) = @_; have to change caller's values |
1376 | |
9aec1e06 |
1377 | if ( $_[1] ) { |
8e07c86e |
1378 | local($ncount) = &scripts2count($_[1]); |
1379 | if ($_[0] =~ /^\s*c\s*$/i) { |
1380 | $_[0] = "A$ncount "; |
1381 | $_[1] = ''; |
1382 | } else { |
1383 | $_[0] = $template x $ncount; |
1384 | } |
1385 | } |
1386 | } |
4633a7c4 |
1387 | !NO!SUBS! |
1388 | |
1389 | close OUT or die "Can't close $file: $!"; |
1390 | chmod 0755, $file or die "Can't reset permissions for $file: $!\n"; |
1391 | unlink 'pstruct'; |
9aec1e06 |
1392 | print "Linking c2ph to pstruct.\n"; |
3a8dc7fa |
1393 | if (defined $Config{d_link}) { |
1394 | link 'c2ph', 'pstruct'; |
1395 | } else { |
1396 | unshift @INC, '../lib'; |
1397 | require File::Copy; |
1398 | File::Copy::syscopy('c2ph', 'pstruct'); |
1399 | } |
4633a7c4 |
1400 | exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':'; |