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4633a7c4 |
1 | #!/usr/local/bin/perl |
2 | |
3 | use Config; |
4 | use File::Basename qw(&basename &dirname); |
8a5546a1 |
5 | use Cwd; |
231bc313 |
6 | use subs qw(link); |
7 | |
6ef9d486 |
8 | sub link { # This is a cut-down version of installperl:link(). |
231bc313 |
9 | my($from,$to) = @_; |
10 | my($success) = 0; |
11 | |
12 | eval { |
13 | CORE::link($from, $to) |
14 | ? $success++ |
15 | : ($from =~ m#^/afs/# || $to =~ m#^/afs/#) |
16 | ? die "AFS" # okay inside eval {} |
17 | : die "Couldn't link $from to $to: $!\n"; |
18 | }; |
19 | if ($@) { |
20 | warn $@; |
21 | require File::Copy; |
22 | File::Copy::copy($from, $to) |
23 | ? $success++ |
24 | : warn "Couldn't copy $from to $to: $!\n"; |
25 | } |
26 | $success; |
27 | } |
4633a7c4 |
28 | |
29 | # List explicitly here the variables you want Configure to |
30 | # generate. Metaconfig only looks for shell variables, so you |
31 | # have to mention them as if they were shell variables, not |
32 | # %Config entries. Thus you write |
33 | # $startperl |
34 | # to ensure Configure will look for $Config{startperl}. |
35 | |
36 | # This forces PL files to create target in same directory as PL file. |
37 | # This is so that make depend always knows where to find PL derivatives. |
8a5546a1 |
38 | $origdir = cwd; |
44a8e56a |
39 | chdir dirname($0); |
40 | $file = basename($0, '.PL'); |
774d564b |
41 | $file .= '.com' if $^O eq 'VMS'; |
4633a7c4 |
42 | |
43 | open OUT,">$file" or die "Can't create $file: $!"; |
44 | |
45 | print "Extracting $file (with variable substitutions)\n"; |
46 | |
47 | # In this section, perl variables will be expanded during extraction. |
48 | # You can use $Config{...} to use Configure variables. |
49 | |
50 | print OUT <<"!GROK!THIS!"; |
5f05dabc |
51 | $Config{startperl} |
52 | eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}' |
53 | if \$running_under_some_shell; |
11aea360 |
54 | !GROK!THIS! |
55 | |
4633a7c4 |
56 | # In the following, perl variables are not expanded during extraction. |
57 | |
58 | print OUT <<'!NO!SUBS!'; |
59 | # |
11aea360 |
60 | # |
61 | # c2ph (aka pstruct) |
62 | # Tom Christiansen, <tchrist@convex.com> |
9aec1e06 |
63 | # |
11aea360 |
64 | # As pstruct, dump C structures as generated from 'cc -g -S' stabs. |
65 | # As c2ph, do this PLUS generate perl code for getting at the structures. |
66 | # |
67 | # See the usage message for more. If this isn't enough, read the code. |
68 | # |
69 | |
9aec1e06 |
70 | =head1 NAME |
71 | |
1fef88e7 |
72 | c2ph, pstruct - Dump C structures as generated from C<cc -g -S> stabs |
9aec1e06 |
73 | |
74 | =head1 SYNOPSIS |
75 | |
76 | c2ph [-dpnP] [var=val] [files ...] |
77 | |
78 | =head2 OPTIONS |
79 | |
80 | Options: |
81 | |
82 | -w wide; short for: type_width=45 member_width=35 offset_width=8 |
83 | -x hex; short for: offset_fmt=x offset_width=08 size_fmt=x size_width=04 |
84 | |
85 | -n do not generate perl code (default when invoked as pstruct) |
86 | -p generate perl code (default when invoked as c2ph) |
87 | -v generate perl code, with C decls as comments |
88 | |
89 | -i do NOT recompute sizes for intrinsic datatypes |
90 | -a dump information on intrinsics also |
91 | |
92 | -t trace execution |
93 | -d spew reams of debugging output |
94 | |
95 | -slist give comma-separated list a structures to dump |
96 | |
97 | =head1 DESCRIPTION |
98 | |
99 | The following is the old c2ph.doc documentation by Tom Christiansen |
100 | <tchrist@perl.com> |
101 | Date: 25 Jul 91 08:10:21 GMT |
102 | |
103 | Once upon a time, I wrote a program called pstruct. It was a perl |
104 | program that tried to parse out C structures and display their member |
105 | offsets for you. This was especially useful for people looking at |
106 | binary dumps or poking around the kernel. |
107 | |
108 | Pstruct was not a pretty program. Neither was it particularly robust. |
109 | The problem, you see, was that the C compiler was much better at parsing |
110 | C than I could ever hope to be. |
111 | |
112 | So I got smart: I decided to be lazy and let the C compiler parse the C, |
113 | which would spit out debugger stabs for me to read. These were much |
114 | easier to parse. It's still not a pretty program, but at least it's more |
115 | robust. |
116 | |
117 | Pstruct takes any .c or .h files, or preferably .s ones, since that's |
118 | the format it is going to massage them into anyway, and spits out |
119 | listings like this: |
120 | |
1fef88e7 |
121 | struct tty { |
122 | int tty.t_locker 000 4 |
123 | int tty.t_mutex_index 004 4 |
124 | struct tty * tty.t_tp_virt 008 4 |
125 | struct clist tty.t_rawq 00c 20 |
126 | int tty.t_rawq.c_cc 00c 4 |
127 | int tty.t_rawq.c_cmax 010 4 |
128 | int tty.t_rawq.c_cfx 014 4 |
129 | int tty.t_rawq.c_clx 018 4 |
130 | struct tty * tty.t_rawq.c_tp_cpu 01c 4 |
131 | struct tty * tty.t_rawq.c_tp_iop 020 4 |
132 | unsigned char * tty.t_rawq.c_buf_cpu 024 4 |
133 | unsigned char * tty.t_rawq.c_buf_iop 028 4 |
134 | struct clist tty.t_canq 02c 20 |
135 | int tty.t_canq.c_cc 02c 4 |
136 | int tty.t_canq.c_cmax 030 4 |
137 | int tty.t_canq.c_cfx 034 4 |
138 | int tty.t_canq.c_clx 038 4 |
139 | struct tty * tty.t_canq.c_tp_cpu 03c 4 |
140 | struct tty * tty.t_canq.c_tp_iop 040 4 |
141 | unsigned char * tty.t_canq.c_buf_cpu 044 4 |
142 | unsigned char * tty.t_canq.c_buf_iop 048 4 |
143 | struct clist tty.t_outq 04c 20 |
144 | int tty.t_outq.c_cc 04c 4 |
145 | int tty.t_outq.c_cmax 050 4 |
146 | int tty.t_outq.c_cfx 054 4 |
147 | int tty.t_outq.c_clx 058 4 |
148 | struct tty * tty.t_outq.c_tp_cpu 05c 4 |
149 | struct tty * tty.t_outq.c_tp_iop 060 4 |
150 | unsigned char * tty.t_outq.c_buf_cpu 064 4 |
151 | unsigned char * tty.t_outq.c_buf_iop 068 4 |
152 | (*int)() tty.t_oproc_cpu 06c 4 |
153 | (*int)() tty.t_oproc_iop 070 4 |
154 | (*int)() tty.t_stopproc_cpu 074 4 |
155 | (*int)() tty.t_stopproc_iop 078 4 |
156 | struct thread * tty.t_rsel 07c 4 |
157 | |
158 | etc. |
9aec1e06 |
159 | |
160 | |
161 | Actually, this was generated by a particular set of options. You can control |
162 | the formatting of each column, whether you prefer wide or fat, hex or decimal, |
163 | leading zeroes or whatever. |
164 | |
165 | All you need to be able to use this is a C compiler than generates |
1fef88e7 |
166 | BSD/GCC-style stabs. The B<-g> option on native BSD compilers and GCC |
9aec1e06 |
167 | should get this for you. |
168 | |
1fef88e7 |
169 | To learn more, just type a bogus option, like B<-\?>, and a long usage message |
9aec1e06 |
170 | will be provided. There are a fair number of possibilities. |
171 | |
172 | If you're only a C programmer, than this is the end of the message for you. |
173 | You can quit right now, and if you care to, save off the source and run it |
174 | when you feel like it. Or not. |
175 | |
176 | |
177 | |
178 | But if you're a perl programmer, then for you I have something much more |
179 | wondrous than just a structure offset printer. |
180 | |
181 | You see, if you call pstruct by its other incybernation, c2ph, you have a code |
182 | generator that translates C code into perl code! Well, structure and union |
183 | declarations at least, but that's quite a bit. |
184 | |
185 | Prior to this point, anyone programming in perl who wanted to interact |
186 | with C programs, like the kernel, was forced to guess the layouts of |
5d0b5eb0 |
187 | the C structures, and then hardwire these into his program. Of course, |
9aec1e06 |
188 | when you took your wonderfully crafted program to a system where the |
5d0b5eb0 |
189 | sgtty structure was laid out differently, your program broke. Which is |
9aec1e06 |
190 | a shame. |
191 | |
192 | We've had Larry's h2ph translator, which helped, but that only works on |
193 | cpp symbols, not real C, which was also very much needed. What I offer |
194 | you is a symbolic way of getting at all the C structures. I've couched |
195 | them in terms of packages and functions. Consider the following program: |
196 | |
197 | #!/usr/local/bin/perl |
198 | |
199 | require 'syscall.ph'; |
200 | require 'sys/time.ph'; |
201 | require 'sys/resource.ph'; |
202 | |
203 | $ru = "\0" x &rusage'sizeof(); |
204 | |
205 | syscall(&SYS_getrusage, &RUSAGE_SELF, $ru) && die "getrusage: $!"; |
206 | |
207 | @ru = unpack($t = &rusage'typedef(), $ru); |
208 | |
209 | $utime = $ru[ &rusage'ru_utime + &timeval'tv_sec ] |
210 | + ($ru[ &rusage'ru_utime + &timeval'tv_usec ]) / 1e6; |
211 | |
212 | $stime = $ru[ &rusage'ru_stime + &timeval'tv_sec ] |
213 | + ($ru[ &rusage'ru_stime + &timeval'tv_usec ]) / 1e6; |
214 | |
215 | printf "you have used %8.3fs+%8.3fu seconds.\n", $utime, $stime; |
216 | |
217 | |
218 | As you see, the name of the package is the name of the structure. Regular |
1fef88e7 |
219 | fields are just their own names. Plus the following accessor functions are |
9aec1e06 |
220 | provided for your convenience: |
221 | |
222 | struct This takes no arguments, and is merely the number of first-level |
223 | elements in the structure. You would use this for indexing |
224 | into arrays of structures, perhaps like this |
225 | |
226 | |
227 | $usec = $u[ &user'u_utimer |
228 | + (&ITIMER_VIRTUAL * &itimerval'struct) |
229 | + &itimerval'it_value |
230 | + &timeval'tv_usec |
231 | ]; |
232 | |
233 | sizeof Returns the bytes in the structure, or the member if |
234 | you pass it an argument, such as |
235 | |
236 | &rusage'sizeof(&rusage'ru_utime) |
237 | |
238 | typedef This is the perl format definition for passing to pack and |
239 | unpack. If you ask for the typedef of a nothing, you get |
240 | the whole structure, otherwise you get that of the member |
241 | you ask for. Padding is taken care of, as is the magic to |
242 | guarantee that a union is unpacked into all its aliases. |
243 | Bitfields are not quite yet supported however. |
244 | |
245 | offsetof This function is the byte offset into the array of that |
246 | member. You may wish to use this for indexing directly |
247 | into the packed structure with vec() if you're too lazy |
248 | to unpack it. |
249 | |
250 | typeof Not to be confused with the typedef accessor function, this |
251 | one returns the C type of that field. This would allow |
252 | you to print out a nice structured pretty print of some |
253 | structure without knoning anything about it beforehand. |
254 | No args to this one is a noop. Someday I'll post such |
255 | a thing to dump out your u structure for you. |
256 | |
257 | |
258 | The way I see this being used is like basically this: |
259 | |
260 | % h2ph <some_include_file.h > /usr/lib/perl/tmp.ph |
261 | % c2ph some_include_file.h >> /usr/lib/perl/tmp.ph |
262 | % install |
263 | |
264 | It's a little tricker with c2ph because you have to get the includes right. |
265 | I can't know this for your system, but it's not usually too terribly difficult. |
266 | |
267 | The code isn't pretty as I mentioned -- I never thought it would be a 1000- |
268 | line program when I started, or I might not have begun. :-) But I would have |
269 | been less cavalier in how the parts of the program communicated with each |
270 | other, etc. It might also have helped if I didn't have to divine the makeup |
271 | of the stabs on the fly, and then account for micro differences between my |
272 | compiler and gcc. |
273 | |
274 | Anyway, here it is. Should run on perl v4 or greater. Maybe less. |
275 | |
276 | |
1fef88e7 |
277 | --tom |
9aec1e06 |
278 | |
279 | =cut |
280 | |
8e07c86e |
281 | $RCSID = '$Id: c2ph,v 1.7 95/10/28 10:41:47 tchrist Exp Locker: tchrist $'; |
11aea360 |
282 | |
2359510d |
283 | use File::Temp; |
11aea360 |
284 | |
285 | ###################################################################### |
286 | |
287 | # some handy data definitions. many of these can be reset later. |
288 | |
289 | $bitorder = 'b'; # ascending; set to B for descending bit fields |
290 | |
9aec1e06 |
291 | %intrinsics = |
11aea360 |
292 | %template = ( |
293 | 'char', 'c', |
294 | 'unsigned char', 'C', |
295 | 'short', 's', |
296 | 'short int', 's', |
297 | 'unsigned short', 'S', |
298 | 'unsigned short int', 'S', |
299 | 'short unsigned int', 'S', |
300 | 'int', 'i', |
301 | 'unsigned int', 'I', |
302 | 'long', 'l', |
303 | 'long int', 'l', |
304 | 'unsigned long', 'L', |
305 | 'unsigned long', 'L', |
306 | 'long unsigned int', 'L', |
307 | 'unsigned long int', 'L', |
308 | 'long long', 'q', |
309 | 'long long int', 'q', |
310 | 'unsigned long long', 'Q', |
311 | 'unsigned long long int', 'Q', |
312 | 'float', 'f', |
313 | 'double', 'd', |
314 | 'pointer', 'p', |
315 | 'null', 'x', |
316 | 'neganull', 'X', |
317 | 'bit', $bitorder, |
9aec1e06 |
318 | ); |
11aea360 |
319 | |
320 | &buildscrunchlist; |
321 | delete $intrinsics{'neganull'}; |
322 | delete $intrinsics{'bit'}; |
323 | delete $intrinsics{'null'}; |
324 | |
325 | # use -s to recompute sizes |
326 | %sizeof = ( |
327 | 'char', '1', |
328 | 'unsigned char', '1', |
329 | 'short', '2', |
330 | 'short int', '2', |
331 | 'unsigned short', '2', |
332 | 'unsigned short int', '2', |
333 | 'short unsigned int', '2', |
334 | 'int', '4', |
335 | 'unsigned int', '4', |
336 | 'long', '4', |
337 | 'long int', '4', |
338 | 'unsigned long', '4', |
339 | 'unsigned long int', '4', |
340 | 'long unsigned int', '4', |
341 | 'long long', '8', |
342 | 'long long int', '8', |
343 | 'unsigned long long', '8', |
344 | 'unsigned long long int', '8', |
345 | 'float', '4', |
346 | 'double', '8', |
347 | 'pointer', '4', |
348 | ); |
349 | |
350 | ($type_width, $member_width, $offset_width, $size_width) = (20, 20, 6, 5); |
351 | |
352 | ($offset_fmt, $size_fmt) = ('d', 'd'); |
353 | |
354 | $indent = 2; |
355 | |
356 | $CC = 'cc'; |
0e488909 |
357 | !NO!SUBS! |
358 | |
359 | if (($Config{gccversion} || '') =~ /^(\d+)\.(\d+)/ |
360 | and ($1 > 3 or ($1 == 3 and $2 >= 2))) { |
361 | print OUT q/$CFLAGS = '-gstabs -S';/; |
362 | } else { |
363 | print OUT q/$CFLAGS = '-g -S';/; |
364 | } |
365 | |
366 | print OUT <<'!NO!SUBS!'; |
367 | |
11aea360 |
368 | $DEFINES = ''; |
369 | |
370 | $perl++ if $0 =~ m#/?c2ph$#; |
371 | |
372 | require 'getopts.pl'; |
373 | |
0e488909 |
374 | use File::Temp 'tempdir'; |
375 | |
11aea360 |
376 | eval '$'.$1.'$2;' while $ARGV[0] =~ /^([A-Za-z_]+=)(.*)/ && shift; |
377 | |
378 | &Getopts('aixdpvtnws:') || &usage(0); |
379 | |
380 | $opt_d && $debug++; |
381 | $opt_t && $trace++; |
382 | $opt_p && $perl++; |
383 | $opt_v && $verbose++; |
384 | $opt_n && ($perl = 0); |
385 | |
386 | if ($opt_w) { |
387 | ($type_width, $member_width, $offset_width) = (45, 35, 8); |
9aec1e06 |
388 | } |
11aea360 |
389 | if ($opt_x) { |
390 | ($offset_fmt, $offset_width, $size_fmt, $size_width) = ( 'x', '08', 'x', 04 ); |
391 | } |
392 | |
393 | eval '$'.$1.'$2;' while $ARGV[0] =~ /^([A-Za-z_]+=)(.*)/ && shift; |
394 | |
395 | sub PLUMBER { |
396 | select(STDERR); |
397 | print "oops, apperent pager foulup\n"; |
398 | $isatty++; |
399 | &usage(1); |
9aec1e06 |
400 | } |
11aea360 |
401 | |
402 | sub usage { |
403 | local($oops) = @_; |
404 | unless (-t STDOUT) { |
405 | select(STDERR); |
406 | } elsif (!$oops) { |
407 | $isatty++; |
408 | $| = 1; |
409 | print "hit <RETURN> for further explanation: "; |
410 | <STDIN>; |
411 | open (PIPE, "|". ($ENV{PAGER} || 'more')); |
412 | $SIG{PIPE} = PLUMBER; |
413 | select(PIPE); |
9aec1e06 |
414 | } |
11aea360 |
415 | |
416 | print "usage: $0 [-dpnP] [var=val] [files ...]\n"; |
417 | |
418 | exit unless $isatty; |
419 | |
420 | print <<EOF; |
421 | |
422 | Options: |
423 | |
424 | -w wide; short for: type_width=45 member_width=35 offset_width=8 |
425 | -x hex; short for: offset_fmt=x offset_width=08 size_fmt=x size_width=04 |
426 | |
427 | -n do not generate perl code (default when invoked as pstruct) |
428 | -p generate perl code (default when invoked as c2ph) |
429 | -v generate perl code, with C decls as comments |
430 | |
431 | -i do NOT recompute sizes for intrinsic datatypes |
432 | -a dump information on intrinsics also |
433 | |
434 | -t trace execution |
435 | -d spew reams of debugging output |
436 | |
437 | -slist give comma-separated list a structures to dump |
438 | |
439 | |
440 | Var Name Default Value Meaning |
441 | |
442 | EOF |
443 | |
444 | &defvar('CC', 'which_compiler to call'); |
445 | &defvar('CFLAGS', 'how to generate *.s files with stabs'); |
446 | &defvar('DEFINES','any extra cflags or cpp defines, like -I, -D, -U'); |
447 | |
448 | print "\n"; |
449 | |
450 | &defvar('type_width', 'width of type field (column 1)'); |
451 | &defvar('member_width', 'width of member field (column 2)'); |
452 | &defvar('offset_width', 'width of offset field (column 3)'); |
453 | &defvar('size_width', 'width of size field (column 4)'); |
454 | |
455 | print "\n"; |
456 | |
457 | &defvar('offset_fmt', 'sprintf format type for offset'); |
458 | &defvar('size_fmt', 'sprintf format type for size'); |
459 | |
460 | print "\n"; |
461 | |
462 | &defvar('indent', 'how far to indent each nesting level'); |
463 | |
464 | print <<'EOF'; |
465 | |
466 | If any *.[ch] files are given, these will be catted together into |
467 | a temporary *.c file and sent through: |
9aec1e06 |
468 | $CC $CFLAGS $DEFINES |
11aea360 |
469 | and the resulting *.s groped for stab information. If no files are |
470 | supplied, then stdin is read directly with the assumption that it |
aa534ff5 |
471 | contains stab information. All other lines will be ignored. At |
11aea360 |
472 | most one *.s file should be supplied. |
473 | |
474 | EOF |
475 | close PIPE; |
476 | exit 1; |
9aec1e06 |
477 | } |
11aea360 |
478 | |
479 | sub defvar { |
480 | local($var, $msg) = @_; |
481 | printf "%-16s%-15s %s\n", $var, eval "\$$var", $msg; |
9aec1e06 |
482 | } |
11aea360 |
483 | |
2359510d |
484 | sub safedir { |
485 | $SAFEDIR = File::Temp::tempdir("c2ph.XXXXXX", TMPDIR => 1, CLEANUP => 1) |
486 | unless (defined($SAFEDIR)); |
487 | } |
488 | |
489 | undef $SAFEDIR; |
490 | |
11aea360 |
491 | $recurse = 1; |
492 | |
493 | if (@ARGV) { |
494 | if (grep(!/\.[csh]$/,@ARGV)) { |
495 | warn "Only *.[csh] files expected!\n"; |
496 | &usage; |
9aec1e06 |
497 | } |
11aea360 |
498 | elsif (grep(/\.s$/,@ARGV)) { |
9aec1e06 |
499 | if (@ARGV > 1) { |
11aea360 |
500 | warn "Only one *.s file allowed!\n"; |
501 | &usage; |
502 | } |
9aec1e06 |
503 | } |
11aea360 |
504 | elsif (@ARGV == 1 && $ARGV[0] =~ /\.c$/) { |
505 | local($dir, $file) = $ARGV[0] =~ m#(.*/)?(.*)$#; |
2359510d |
506 | $chdir = "cd $dir && " if $dir; |
11aea360 |
507 | &system("$chdir$CC $CFLAGS $DEFINES $file") && exit 1; |
508 | $ARGV[0] =~ s/\.c$/.s/; |
9aec1e06 |
509 | } |
11aea360 |
510 | else { |
2359510d |
511 | &safedir; |
512 | $TMP = "$SAFEDIR/c2ph.$$.c"; |
11aea360 |
513 | &system("cat @ARGV > $TMP") && exit 1; |
2359510d |
514 | &system("cd $SAFEDIR && $CC $CFLAGS $DEFINES $TMP") && exit 1; |
11aea360 |
515 | unlink $TMP; |
516 | $TMP =~ s/\.c$/.s/; |
517 | @ARGV = ($TMP); |
9aec1e06 |
518 | } |
11aea360 |
519 | } |
520 | |
521 | if ($opt_s) { |
522 | for (split(/[\s,]+/, $opt_s)) { |
523 | $interested{$_}++; |
9aec1e06 |
524 | } |
525 | } |
11aea360 |
526 | |
527 | |
528 | $| = 1 if $debug; |
529 | |
530 | main: { |
531 | |
532 | if ($trace) { |
9aec1e06 |
533 | if (-t && !@ARGV) { |
11aea360 |
534 | print STDERR "reading from your keyboard: "; |
535 | } else { |
536 | print STDERR "reading from " . (@ARGV ? "@ARGV" : "<STDIN>").": "; |
537 | } |
538 | } |
539 | |
540 | STAB: while (<>) { |
541 | if ($trace && !($. % 10)) { |
542 | $lineno = $..''; |
543 | print STDERR $lineno, "\b" x length($lineno); |
9aec1e06 |
544 | } |
11aea360 |
545 | next unless /^\s*\.stabs\s+/; |
546 | $line = $_; |
9aec1e06 |
547 | s/^\s*\.stabs\s+//; |
8e07c86e |
548 | if (s/\\\\"[d,]+$//) { |
549 | $saveline .= $line; |
550 | $savebar = $_; |
551 | next STAB; |
9aec1e06 |
552 | } |
8e07c86e |
553 | if ($saveline) { |
554 | s/^"//; |
555 | $_ = $savebar . $_; |
556 | $line = $saveline; |
9aec1e06 |
557 | } |
558 | &stab; |
8e07c86e |
559 | $savebar = $saveline = undef; |
11aea360 |
560 | } |
561 | print STDERR "$.\n" if $trace; |
562 | unlink $TMP if $TMP; |
563 | |
564 | &compute_intrinsics if $perl && !$opt_i; |
565 | |
566 | print STDERR "resolving types\n" if $trace; |
567 | |
568 | &resolve_types; |
569 | &adjust_start_addrs; |
570 | |
571 | $sum = 2 + $type_width + $member_width; |
9aec1e06 |
572 | $pmask1 = "%-${type_width}s %-${member_width}s"; |
11aea360 |
573 | $pmask2 = "%-${sum}s %${offset_width}${offset_fmt}%s %${size_width}${size_fmt}%s"; |
574 | |
8e07c86e |
575 | |
576 | |
11aea360 |
577 | if ($perl) { |
578 | # resolve template -- should be in stab define order, but even this isn't enough. |
579 | print STDERR "\nbuilding type templates: " if $trace; |
580 | for $i (reverse 0..$#type) { |
581 | next unless defined($name = $type[$i]); |
582 | next unless defined $struct{$name}; |
8e07c86e |
583 | ($iname = $name) =~ s/\..*//; |
11aea360 |
584 | $build_recursed = 0; |
585 | &build_template($name) unless defined $template{&psou($name)} || |
8e07c86e |
586 | $opt_s && !$interested{$iname}; |
9aec1e06 |
587 | } |
11aea360 |
588 | print STDERR "\n\n" if $trace; |
589 | } |
590 | |
591 | print STDERR "dumping structs: " if $trace; |
592 | |
8e07c86e |
593 | local($iam); |
594 | |
595 | |
11aea360 |
596 | |
597 | foreach $name (sort keys %struct) { |
8e07c86e |
598 | ($iname = $name) =~ s/\..*//; |
599 | next if $opt_s && !$interested{$iname}; |
11aea360 |
600 | print STDERR "$name " if $trace; |
601 | |
602 | undef @sizeof; |
603 | undef @typedef; |
604 | undef @offsetof; |
605 | undef @indices; |
606 | undef @typeof; |
8e07c86e |
607 | undef @fieldnames; |
11aea360 |
608 | |
609 | $mname = &munge($name); |
610 | |
611 | $fname = &psou($name); |
612 | |
613 | print "# " if $perl && $verbose; |
614 | $pcode = ''; |
9aec1e06 |
615 | print "$fname {\n" if !$perl || $verbose; |
11aea360 |
616 | $template{$fname} = &scrunch($template{$fname}) if $perl; |
9aec1e06 |
617 | &pstruct($name,$name,0); |
11aea360 |
618 | print "# " if $perl && $verbose; |
9aec1e06 |
619 | print "}\n" if !$perl || $verbose; |
11aea360 |
620 | print "\n" if $perl && $verbose; |
621 | |
622 | if ($perl) { |
623 | print "$pcode"; |
624 | |
625 | printf("\nsub %-32s { %4d; }\n\n", "${mname}'struct", $countof{$name}); |
626 | |
627 | print <<EOF; |
9aec1e06 |
628 | sub ${mname}'typedef { |
11aea360 |
629 | local(\$${mname}'index) = shift; |
9aec1e06 |
630 | defined \$${mname}'index |
631 | ? \$${mname}'typedef[\$${mname}'index] |
11aea360 |
632 | : \$${mname}'typedef; |
633 | } |
634 | EOF |
635 | |
636 | print <<EOF; |
9aec1e06 |
637 | sub ${mname}'sizeof { |
11aea360 |
638 | local(\$${mname}'index) = shift; |
9aec1e06 |
639 | defined \$${mname}'index |
640 | ? \$${mname}'sizeof[\$${mname}'index] |
11aea360 |
641 | : \$${mname}'sizeof; |
642 | } |
643 | EOF |
644 | |
645 | print <<EOF; |
9aec1e06 |
646 | sub ${mname}'offsetof { |
11aea360 |
647 | local(\$${mname}'index) = shift; |
9aec1e06 |
648 | defined \$${mname}index |
649 | ? \$${mname}'offsetof[\$${mname}'index] |
11aea360 |
650 | : \$${mname}'sizeof; |
651 | } |
652 | EOF |
653 | |
654 | print <<EOF; |
9aec1e06 |
655 | sub ${mname}'typeof { |
11aea360 |
656 | local(\$${mname}'index) = shift; |
9aec1e06 |
657 | defined \$${mname}index |
658 | ? \$${mname}'typeof[\$${mname}'index] |
11aea360 |
659 | : '$name'; |
660 | } |
661 | EOF |
9aec1e06 |
662 | |
8e07c86e |
663 | print <<EOF; |
9aec1e06 |
664 | sub ${mname}'fieldnames { |
665 | \@${mname}'fieldnames; |
8e07c86e |
666 | } |
667 | EOF |
668 | |
669 | $iam = ($isastruct{$name} && 's') || ($isaunion{$name} && 'u'); |
9aec1e06 |
670 | |
8e07c86e |
671 | print <<EOF; |
9aec1e06 |
672 | sub ${mname}'isastruct { |
673 | '$iam'; |
8e07c86e |
674 | } |
675 | EOF |
11aea360 |
676 | |
9aec1e06 |
677 | print "\$${mname}'typedef = '" . &scrunch($template{$fname}) |
11aea360 |
678 | . "';\n"; |
679 | |
680 | print "\$${mname}'sizeof = $sizeof{$name};\n\n"; |
681 | |
682 | |
683 | print "\@${mname}'indices = (", &squishseq(@indices), ");\n"; |
684 | |
685 | print "\n"; |
686 | |
687 | print "\@${mname}'typedef[\@${mname}'indices] = (", |
688 | join("\n\t", '', @typedef), "\n );\n\n"; |
689 | print "\@${mname}'sizeof[\@${mname}'indices] = (", |
690 | join("\n\t", '', @sizeof), "\n );\n\n"; |
691 | print "\@${mname}'offsetof[\@${mname}'indices] = (", |
692 | join("\n\t", '', @offsetof), "\n );\n\n"; |
693 | print "\@${mname}'typeof[\@${mname}'indices] = (", |
694 | join("\n\t", '', @typeof), "\n );\n\n"; |
8e07c86e |
695 | print "\@${mname}'fieldnames[\@${mname}'indices] = (", |
696 | join("\n\t", '', @fieldnames), "\n );\n\n"; |
11aea360 |
697 | |
698 | $template_printed{$fname}++; |
699 | $size_printed{$fname}++; |
9aec1e06 |
700 | } |
11aea360 |
701 | print "\n"; |
702 | } |
703 | |
704 | print STDERR "\n" if $trace; |
705 | |
9aec1e06 |
706 | unless ($perl && $opt_a) { |
8e07c86e |
707 | print "\n1;\n" if $perl; |
11aea360 |
708 | exit; |
709 | } |
710 | |
711 | |
712 | |
713 | foreach $name (sort bysizevalue keys %intrinsics) { |
714 | next if $size_printed{$name}; |
715 | print '$',&munge($name),"'sizeof = ", $sizeof{$name}, ";\n"; |
716 | } |
717 | |
718 | print "\n"; |
719 | |
720 | sub bysizevalue { $sizeof{$a} <=> $sizeof{$b}; } |
721 | |
722 | |
723 | foreach $name (sort keys %intrinsics) { |
724 | print '$',&munge($name),"'typedef = '", $template{$name}, "';\n"; |
725 | } |
726 | |
8e07c86e |
727 | print "\n1;\n" if $perl; |
9aec1e06 |
728 | |
11aea360 |
729 | exit; |
730 | } |
731 | |
732 | ######################################################################################## |
733 | |
734 | |
735 | sub stab { |
8e07c86e |
736 | next unless $continued || /:[\$\w]+(\(\d+,\d+\))?=[\*\$\w]+/; # (\d+,\d+) is for sun |
11aea360 |
737 | s/"// || next; |
738 | s/",([x\d]+),([x\d]+),([x\d]+),.*// || next; |
739 | |
740 | next if /^\s*$/; |
741 | |
742 | $size = $3 if $3; |
8e07c86e |
743 | $_ = $continued . $_ if length($continued); |
744 | if (s/\\\\$//) { |
745 | # if last 2 chars of string are '\\' then stab is continued |
746 | # in next stab entry |
747 | chop; |
748 | $continued = $_; |
749 | next; |
750 | } |
751 | $continued = ''; |
11aea360 |
752 | |
753 | |
754 | $line = $_; |
755 | |
756 | if (($name, $pdecl) = /^([\$ \w]+):[tT]((\d+)(=[rufs*](\d+))+)$/) { |
757 | print "$name is a typedef for some funky pointers: $pdecl\n" if $debug; |
758 | &pdecl($pdecl); |
759 | next; |
760 | } |
761 | |
762 | |
763 | |
9aec1e06 |
764 | if (/(([ \w]+):t(\d+|\(\d+,\d+\)))=r?(\d+|\(\d+,\d+\))(;\d+;\d+;)?/) { |
11aea360 |
765 | local($ident) = $2; |
766 | push(@intrinsics, $ident); |
767 | $typeno = &typeno($3); |
768 | $type[$typeno] = $ident; |
9aec1e06 |
769 | print STDERR "intrinsic $ident in new type $typeno\n" if $debug; |
11aea360 |
770 | next; |
771 | } |
772 | |
9aec1e06 |
773 | if (($name, $typeordef, $typeno, $extra, $struct, $_) |
774 | = /^([\$ \w]+):([ustT])(\d+|\(\d+,\d+\))(=[rufs*](\d+))?(.*)$/) |
11aea360 |
775 | { |
776 | $typeno = &typeno($typeno); # sun foolery |
9aec1e06 |
777 | } |
11aea360 |
778 | elsif (/^[\$\w]+:/) { |
779 | next; # variable |
780 | } |
9aec1e06 |
781 | else { |
11aea360 |
782 | warn "can't grok stab: <$_> in: $line " if $_; |
783 | next; |
9aec1e06 |
784 | } |
11aea360 |
785 | |
786 | #warn "got size $size for $name\n"; |
787 | $sizeof{$name} = $size if $size; |
788 | |
789 | s/;[-\d]*;[-\d]*;$//; # we don't care about ranges |
790 | |
791 | $typenos{$name} = $typeno; |
792 | |
793 | unless (defined $type[$typeno]) { |
794 | &panic("type 0??") unless $typeno; |
795 | $type[$typeno] = $name unless defined $type[$typeno]; |
796 | printf "new type $typeno is $name" if $debug; |
797 | if ($extra =~ /\*/ && defined $type[$struct]) { |
798 | print ", a typedef for a pointer to " , $type[$struct] if $debug; |
799 | } |
800 | } else { |
801 | printf "%s is type %d", $name, $typeno if $debug; |
802 | print ", a typedef for " , $type[$typeno] if $debug; |
9aec1e06 |
803 | } |
11aea360 |
804 | print "\n" if $debug; |
805 | #next unless $extra =~ /[su*]/; |
806 | |
807 | #$type[$struct] = $name; |
808 | |
809 | if ($extra =~ /[us*]/) { |
810 | &sou($name, $extra); |
811 | $_ = &sdecl($name, $_, 0); |
812 | } |
813 | elsif (/^=ar/) { |
814 | print "it's a bare array typedef -- that's pretty sick\n" if $debug; |
815 | $_ = "$typeno$_"; |
816 | $scripts = ''; |
817 | $_ = &adecl($_,1); |
818 | |
819 | } |
820 | elsif (s/((\w+):t(\d+|\(\d+,\d+\)))?=r?(;\d+;\d+;)?//) { # the ?'s are for gcc |
821 | push(@intrinsics, $2); |
822 | $typeno = &typeno($3); |
823 | $type[$typeno] = $2; |
9aec1e06 |
824 | print STDERR "intrinsic $2 in new type $typeno\n" if $debug; |
11aea360 |
825 | } |
8e07c86e |
826 | elsif (s/^=e//) { # blessed be thy compiler; mine won't do this |
11aea360 |
827 | &edecl; |
9aec1e06 |
828 | } |
11aea360 |
829 | else { |
830 | warn "Funny remainder for $name on line $_ left in $line " if $_; |
9aec1e06 |
831 | } |
11aea360 |
832 | } |
833 | |
834 | sub typeno { # sun thinks types are (0,27) instead of just 27 |
835 | local($_) = @_; |
836 | s/\(\d+,(\d+)\)/$1/; |
837 | $_; |
9aec1e06 |
838 | } |
11aea360 |
839 | |
840 | sub pstruct { |
9aec1e06 |
841 | local($what,$prefix,$base) = @_; |
842 | local($field, $fieldname, $typeno, $count, $offset, $entry); |
11aea360 |
843 | local($fieldtype); |
9aec1e06 |
844 | local($type, $tname); |
11aea360 |
845 | local($mytype, $mycount, $entry2); |
846 | local($struct_count) = 0; |
847 | local($pad, $revpad, $length, $prepad, $lastoffset, $lastlength, $fmt); |
848 | local($bits,$bytes); |
849 | local($template); |
850 | |
851 | |
852 | local($mname) = &munge($name); |
853 | |
9aec1e06 |
854 | sub munge { |
11aea360 |
855 | local($_) = @_; |
856 | s/[\s\$\.]/_/g; |
857 | $_; |
858 | } |
859 | |
860 | local($sname) = &psou($what); |
861 | |
862 | $nesting++; |
863 | |
864 | for $field (split(/;/, $struct{$what})) { |
865 | $pad = $prepad = 0; |
9aec1e06 |
866 | $entry = ''; |
867 | ($fieldname, $typeno, $count, $offset, $length) = split(/,/, $field); |
11aea360 |
868 | |
869 | $type = $type[$typeno]; |
870 | |
871 | $type =~ /([^[]*)(\[.*\])?/; |
872 | $mytype = $1; |
873 | $count .= $2; |
874 | $fieldtype = &psou($mytype); |
875 | |
876 | local($fname) = &psou($name); |
877 | |
878 | if ($build_templates) { |
879 | |
9aec1e06 |
880 | $pad = ($offset - ($lastoffset + $lastlength))/8 |
11aea360 |
881 | if defined $lastoffset; |
882 | |
883 | if (! $finished_template{$sname}) { |
884 | if ($isaunion{$what}) { |
885 | $template{$sname} .= 'X' x $revpad . ' ' if $revpad; |
886 | } else { |
887 | $template{$sname} .= 'x' x $pad . ' ' if $pad; |
888 | } |
889 | } |
890 | |
8e07c86e |
891 | $template = &fetch_template($type); |
892 | &repeat_template($template,$count); |
11aea360 |
893 | |
894 | if (! $finished_template{$sname}) { |
895 | $template{$sname} .= $template; |
896 | } |
897 | |
898 | $revpad = $length/8 if $isaunion{$what}; |
899 | |
900 | ($lastoffset, $lastlength) = ($offset, $length); |
901 | |
9aec1e06 |
902 | } else { |
11aea360 |
903 | print '# ' if $perl && $verbose; |
904 | $entry = sprintf($pmask1, |
905 | ' ' x ($nesting * $indent) . $fieldtype, |
9aec1e06 |
906 | "$prefix.$fieldname" . $count); |
11aea360 |
907 | |
9aec1e06 |
908 | $entry =~ s/(\*+)( )/$2$1/; |
11aea360 |
909 | |
910 | printf $pmask2, |
911 | $entry, |
912 | ($base+$offset)/8, |
913 | ($bits = ($base+$offset)%8) ? ".$bits" : " ", |
914 | $length/8, |
915 | ($bits = $length % 8) ? ".$bits": "" |
916 | if !$perl || $verbose; |
917 | |
8e07c86e |
918 | if ($perl) { |
919 | $template = &fetch_template($type); |
920 | &repeat_template($template,$count); |
921 | } |
11aea360 |
922 | |
923 | if ($perl && $nesting == 1) { |
8e07c86e |
924 | |
11aea360 |
925 | push(@sizeof, int($length/8) .",\t# $fieldname"); |
926 | push(@offsetof, int($offset/8) .",\t# $fieldname"); |
8e07c86e |
927 | local($little) = &scrunch($template); |
928 | push(@typedef, "'$little', \t# $fieldname"); |
11aea360 |
929 | $type =~ s/(struct|union) //; |
8e07c86e |
930 | push(@typeof, "'$mytype" . ($count ? $count : '') . |
11aea360 |
931 | "',\t# $fieldname"); |
8e07c86e |
932 | push(@fieldnames, "'$fieldname',"); |
11aea360 |
933 | } |
934 | |
935 | print ' ', ' ' x $indent x $nesting, $template |
936 | if $perl && $verbose; |
937 | |
938 | print "\n" if !$perl || $verbose; |
939 | |
9aec1e06 |
940 | } |
11aea360 |
941 | if ($perl) { |
942 | local($mycount) = defined $struct{$mytype} ? $countof{$mytype} : 1; |
943 | $mycount *= &scripts2count($count) if $count; |
944 | if ($nesting==1 && !$build_templates) { |
9aec1e06 |
945 | $pcode .= sprintf("sub %-32s { %4d; }\n", |
11aea360 |
946 | "${mname}'${fieldname}", $struct_count); |
947 | push(@indices, $struct_count); |
948 | } |
949 | $struct_count += $mycount; |
9aec1e06 |
950 | } |
11aea360 |
951 | |
952 | |
9aec1e06 |
953 | &pstruct($type, "$prefix.$fieldname", $base+$offset) |
954 | if $recurse && defined $struct{$type}; |
11aea360 |
955 | } |
956 | |
957 | $countof{$what} = $struct_count unless defined $countof{$whati}; |
958 | |
959 | $template{$sname} .= '$' if $build_templates; |
960 | $finished_template{$sname}++; |
961 | |
962 | if ($build_templates && !defined $sizeof{$name}) { |
963 | local($fmt) = &scrunch($template{$sname}); |
964 | print STDERR "no size for $name, punting with $fmt..." if $debug; |
965 | eval '$sizeof{$name} = length(pack($fmt, ()))'; |
966 | if ($@) { |
967 | chop $@; |
968 | warn "couldn't get size for \$name: $@"; |
969 | } else { |
970 | print STDERR $sizeof{$name}, "\n" if $debUg; |
971 | } |
9aec1e06 |
972 | } |
11aea360 |
973 | |
974 | --$nesting; |
975 | } |
976 | |
977 | |
978 | sub psize { |
9aec1e06 |
979 | local($me) = @_; |
11aea360 |
980 | local($amstruct) = $struct{$me} ? 'struct ' : ''; |
981 | |
9aec1e06 |
982 | print '$sizeof{\'', $amstruct, $me, '\'} = '; |
983 | printf "%d;\n", $sizeof{$me}; |
11aea360 |
984 | } |
985 | |
986 | sub pdecl { |
987 | local($pdecl) = @_; |
988 | local(@pdecls); |
989 | local($tname); |
990 | |
991 | warn "pdecl: $pdecl\n" if $debug; |
992 | |
993 | $pdecl =~ s/\(\d+,(\d+)\)/$1/g; |
9aec1e06 |
994 | $pdecl =~ s/\*//g; |
995 | @pdecls = split(/=/, $pdecl); |
11aea360 |
996 | $typeno = $pdecls[0]; |
997 | $tname = pop @pdecls; |
998 | |
9aec1e06 |
999 | if ($tname =~ s/^f//) { $tname = "$tname&"; } |
1000 | #else { $tname = "$tname*"; } |
11aea360 |
1001 | |
1002 | for (reverse @pdecls) { |
9aec1e06 |
1003 | $tname .= s/^f// ? "&" : "*"; |
11aea360 |
1004 | #$tname =~ s/^f(.*)/$1&/; |
1005 | print "type[$_] is $tname\n" if $debug; |
1006 | $type[$_] = $tname unless defined $type[$_]; |
9aec1e06 |
1007 | } |
11aea360 |
1008 | } |
1009 | |
1010 | |
1011 | |
1012 | sub adecl { |
1013 | ($arraytype, $unknown, $lower, $upper) = (); |
1014 | #local($typeno); |
1015 | # global $typeno, @type |
1016 | local($_, $typedef) = @_; |
1017 | |
8e07c86e |
1018 | while (s/^((\d+|\(\d+,\d+\))=)?ar(\d+|\(\d+,\d+\));//) { |
9aec1e06 |
1019 | ($arraytype, $unknown) = ($2, $3); |
8e07c86e |
1020 | $arraytype = &typeno($arraytype); |
1021 | $unknown = &typeno($unknown); |
11aea360 |
1022 | if (s/^(\d+);(\d+);//) { |
9aec1e06 |
1023 | ($lower, $upper) = ($1, $2); |
1024 | $scripts .= '[' . ($upper+1) . ']'; |
11aea360 |
1025 | } else { |
9aec1e06 |
1026 | warn "can't find array bounds: $_"; |
1027 | } |
11aea360 |
1028 | } |
8e07c86e |
1029 | if (s/^([(,)\d*f=]*),(\d+),(\d+);//) { |
9aec1e06 |
1030 | ($start, $length) = ($2, $3); |
8e07c86e |
1031 | $whatis = $1; |
1032 | if ($whatis =~ /^(\d+|\(\d+,\d+\))=/) { |
1033 | $typeno = &typeno($1); |
11aea360 |
1034 | &pdecl($whatis); |
1035 | } else { |
8e07c86e |
1036 | $typeno = &typeno($whatis); |
11aea360 |
1037 | } |
1038 | } elsif (s/^(\d+)(=[*suf]\d*)//) { |
9aec1e06 |
1039 | local($whatis) = $2; |
11aea360 |
1040 | |
1041 | if ($whatis =~ /[f*]/) { |
9aec1e06 |
1042 | &pdecl($whatis); |
1043 | } elsif ($whatis =~ /[su]/) { # |
1044 | print "$prefix.$fieldname is an array$scripts anon structs; disgusting\n" |
11aea360 |
1045 | if $debug; |
1046 | #$type[$typeno] = $name unless defined $type[$typeno]; |
1047 | ##printf "new type $typeno is $name" if $debug; |
1048 | $typeno = $1; |
1049 | $type[$typeno] = "$prefix.$fieldname"; |
1050 | local($name) = $type[$typeno]; |
1051 | &sou($name, $whatis); |
1052 | $_ = &sdecl($name, $_, $start+$offset); |
1053 | 1; |
1054 | $start = $start{$name}; |
1055 | $offset = $sizeof{$name}; |
1056 | $length = $offset; |
1057 | } else { |
1058 | warn "what's this? $whatis in $line "; |
9aec1e06 |
1059 | } |
11aea360 |
1060 | } elsif (/^\d+$/) { |
1061 | $typeno = $_; |
1062 | } else { |
1063 | warn "bad array stab: $_ in $line "; |
1064 | next STAB; |
9aec1e06 |
1065 | } |
11aea360 |
1066 | #local($wasdef) = defined($type[$typeno]) && $debug; |
9aec1e06 |
1067 | #if ($typedef) { |
11aea360 |
1068 | #print "redefining $type[$typeno] to " if $wasdef; |
1069 | #$type[$typeno] = "$whatis$scripts"; # unless defined $type[$typeno]; |
1070 | #print "$type[$typeno]\n" if $wasdef; |
1071 | #} else { |
1072 | #$type[$arraytype] = $type[$typeno] unless defined $type[$arraytype]; |
1073 | #} |
1074 | $type[$arraytype] = "$type[$typeno]$scripts" if defined $type[$typeno]; |
1075 | print "type[$arraytype] is $type[$arraytype]\n" if $debug; |
1076 | print "$prefix.$fieldname is an array of $type[$arraytype]\n" if $debug; |
1077 | $_; |
1078 | } |
1079 | |
1080 | |
1081 | |
1082 | sub sdecl { |
1083 | local($prefix, $_, $offset) = @_; |
1084 | |
1085 | local($fieldname, $scripts, $type, $arraytype, $unknown, |
1086 | $whatis, $pdecl, $upper,$lower, $start,$length) = (); |
1087 | local($typeno,$sou); |
1088 | |
1089 | |
1090 | SFIELD: |
1091 | while (/^([^;]+);/) { |
1092 | $scripts = ''; |
1093 | warn "sdecl $_\n" if $debug; |
9aec1e06 |
1094 | if (s/^([\$\w]+)://) { |
11aea360 |
1095 | $fieldname = $1; |
9aec1e06 |
1096 | } elsif (s/(\d+)=([us])(\d+|\(\d+,\d+\))//) { # |
11aea360 |
1097 | $typeno = &typeno($1); |
1098 | $type[$typeno] = "$prefix.$fieldname"; |
1099 | local($name) = "$prefix.$fieldname"; |
1100 | &sou($name,$2); |
1101 | $_ = &sdecl("$prefix.$fieldname", $_, $start+$offset); |
1102 | $start = $start{$name}; |
1103 | $offset += $sizeof{$name}; |
1104 | #print "done with anon, start is $start, offset is $offset\n"; |
1105 | #next SFIELD; |
1106 | } else { |
1107 | warn "weird field $_ of $line" if $debug; |
1108 | next STAB; |
1109 | #$fieldname = &gensym; |
1110 | #$_ = &sdecl("$prefix.$fieldname", $_, $start+$offset); |
1111 | } |
1112 | |
8e07c86e |
1113 | if (/^(\d+|\(\d+,\d+\))=ar/) { |
11aea360 |
1114 | $_ = &adecl($_); |
1115 | } |
1116 | elsif (s/^(\d+|\(\d+,\d+\))?,(\d+),(\d+);//) { |
8e07c86e |
1117 | ($start, $length) = ($2, $3); |
1118 | &panic("no length?") unless $length; |
1119 | $typeno = &typeno($1) if $1; |
1120 | } |
1121 | elsif (s/^(\d+)=xs\w+:,(\d+),(\d+);//) { |
9aec1e06 |
1122 | ($start, $length) = ($2, $3); |
11aea360 |
1123 | &panic("no length?") unless $length; |
1124 | $typeno = &typeno($1) if $1; |
1125 | } |
1126 | elsif (s/^((\d+|\(\d+,\d+\))(=[*f](\d+|\(\d+,\d+\)))+),(\d+),(\d+);//) { |
9aec1e06 |
1127 | ($pdecl, $start, $length) = ($1,$5,$6); |
1128 | &pdecl($pdecl); |
11aea360 |
1129 | } |
1130 | elsif (s/(\d+)=([us])(\d+|\(\d+,\d+\))//) { # the dratted anon struct |
1131 | ($typeno, $sou) = ($1, $2); |
1132 | $typeno = &typeno($typeno); |
1133 | if (defined($type[$typeno])) { |
1134 | warn "now how did we get type $1 in $fieldname of $line?"; |
1135 | } else { |
1136 | print "anon type $typeno is $prefix.$fieldname\n" if $debug; |
1137 | $type[$typeno] = "$prefix.$fieldname" unless defined $type[$typeno]; |
1138 | }; |
1139 | local($name) = "$prefix.$fieldname"; |
1140 | &sou($name,$sou); |
1141 | print "anon ".($isastruct{$name}) ? "struct":"union"." for $prefix.$fieldname\n" if $debug; |
1142 | $type[$typeno] = "$prefix.$fieldname"; |
9aec1e06 |
1143 | $_ = &sdecl("$prefix.$fieldname", $_, $start+$offset); |
11aea360 |
1144 | $start = $start{$name}; |
1145 | $length = $sizeof{$name}; |
1146 | } |
1147 | else { |
9aec1e06 |
1148 | warn "can't grok stab for $name ($_) in line $line "; |
1149 | next STAB; |
11aea360 |
1150 | } |
1151 | |
1152 | &panic("no length for $prefix.$fieldname") unless $length; |
1153 | $struct{$name} .= join(',', $fieldname, $typeno, $scripts, $start, $length) . ';'; |
1154 | } |
1155 | if (s/;\d*,(\d+),(\d+);//) { |
9aec1e06 |
1156 | local($start, $size) = ($1, $2); |
11aea360 |
1157 | $sizeof{$prefix} = $size; |
9aec1e06 |
1158 | print "start of $prefix is $start, size of $sizeof{$prefix}\n" if $debug; |
1159 | $start{$prefix} = $start; |
1160 | } |
11aea360 |
1161 | $_; |
1162 | } |
1163 | |
1164 | sub edecl { |
1165 | s/;$//; |
1166 | $enum{$name} = $_; |
1167 | $_ = ''; |
9aec1e06 |
1168 | } |
11aea360 |
1169 | |
1170 | sub resolve_types { |
1171 | local($sou); |
1172 | for $i (0 .. $#type) { |
1173 | next unless defined $type[$i]; |
1174 | $_ = $type[$i]; |
1175 | unless (/\d/) { |
1176 | print "type[$i] $type[$i]\n" if $debug; |
1177 | next; |
1178 | } |
1179 | print "type[$i] $_ ==> " if $debug; |
1180 | s/^(\d+)(\**)\&\*(\**)/"$2($3".&type($1) . ')()'/e; |
9aec1e06 |
1181 | s/^(\d+)\&/&type($1)/e; |
1182 | s/^(\d+)/&type($1)/e; |
11aea360 |
1183 | s/(\*+)([^*]+)(\*+)/$1$3$2/; |
1184 | s/\((\*+)(\w+)(\*+)\)/$3($1$2)/; |
1185 | s/^(\d+)([\*\[].*)/&type($1).$2/e; |
1186 | #s/(\d+)(\*|(\[[\[\]\d\*]+]\])+)/&type($1).$2/ge; |
1187 | $type[$i] = $_; |
1188 | print "$_\n" if $debug; |
1189 | } |
1190 | } |
9aec1e06 |
1191 | sub type { &psou($type[$_[0]] || "<UNDEFINED>"); } |
11aea360 |
1192 | |
1193 | sub adjust_start_addrs { |
1194 | for (sort keys %start) { |
1195 | ($basename = $_) =~ s/\.[^.]+$//; |
1196 | $start{$_} += $start{$basename}; |
1197 | print "start: $_ @ $start{$_}\n" if $debug; |
1198 | } |
1199 | } |
1200 | |
1201 | sub sou { |
1202 | local($what, $_) = @_; |
1203 | /u/ && $isaunion{$what}++; |
1204 | /s/ && $isastruct{$what}++; |
1205 | } |
1206 | |
1207 | sub psou { |
1208 | local($what) = @_; |
1209 | local($prefix) = ''; |
1210 | if ($isaunion{$what}) { |
1211 | $prefix = 'union '; |
1212 | } elsif ($isastruct{$what}) { |
1213 | $prefix = 'struct '; |
1214 | } |
1215 | $prefix . $what; |
1216 | } |
1217 | |
1218 | sub scrunch { |
1219 | local($_) = @_; |
1220 | |
8e07c86e |
1221 | return '' if $_ eq ''; |
1222 | |
11aea360 |
1223 | study; |
1224 | |
1225 | s/\$//g; |
1226 | s/ / /g; |
1227 | 1 while s/(\w) \1/$1$1/g; |
1228 | |
1229 | # i wanna say this, but perl resists my efforts: |
1230 | # s/(\w)(\1+)/$2 . length($1)/ge; |
1231 | |
1232 | &quick_scrunch; |
1233 | |
1234 | s/ $//; |
1235 | |
1236 | $_; |
1237 | } |
1238 | |
1239 | sub buildscrunchlist { |
1240 | $scrunch_code = "sub quick_scrunch {\n"; |
1241 | for (values %intrinsics) { |
4633a7c4 |
1242 | $scrunch_code .= "\ts/(${_}{2,})/'$_' . length(\$1)/ge;\n"; |
9aec1e06 |
1243 | } |
11aea360 |
1244 | $scrunch_code .= "}\n"; |
1245 | print "$scrunch_code" if $debug; |
1246 | eval $scrunch_code; |
1247 | &panic("can't eval scrunch_code $@ \nscrunch_code") if $@; |
9aec1e06 |
1248 | } |
11aea360 |
1249 | |
1250 | sub fetch_template { |
1251 | local($mytype) = @_; |
1252 | local($fmt); |
1253 | local($count) = 1; |
1254 | |
1255 | &panic("why do you care?") unless $perl; |
1256 | |
1257 | if ($mytype =~ s/(\[\d+\])+$//) { |
1258 | $count .= $1; |
9aec1e06 |
1259 | } |
11aea360 |
1260 | |
1261 | if ($mytype =~ /\*/) { |
1262 | $fmt = $template{'pointer'}; |
9aec1e06 |
1263 | } |
11aea360 |
1264 | elsif (defined $template{$mytype}) { |
1265 | $fmt = $template{$mytype}; |
9aec1e06 |
1266 | } |
11aea360 |
1267 | elsif (defined $struct{$mytype}) { |
1268 | if (!defined $template{&psou($mytype)}) { |
1269 | &build_template($mytype) unless $mytype eq $name; |
9aec1e06 |
1270 | } |
11aea360 |
1271 | elsif ($template{&psou($mytype)} !~ /\$$/) { |
1272 | #warn "incomplete template for $mytype\n"; |
9aec1e06 |
1273 | } |
11aea360 |
1274 | $fmt = $template{&psou($mytype)} || '?'; |
9aec1e06 |
1275 | } |
11aea360 |
1276 | else { |
1277 | warn "unknown fmt for $mytype\n"; |
1278 | $fmt = '?'; |
9aec1e06 |
1279 | } |
11aea360 |
1280 | |
1281 | $fmt x $count . ' '; |
1282 | } |
1283 | |
1284 | sub compute_intrinsics { |
2359510d |
1285 | &safedir; |
1286 | local($TMP) = "$SAFEDIR/c2ph-i.$$.c"; |
11aea360 |
1287 | open (TMP, ">$TMP") || die "can't open $TMP: $!"; |
1288 | select(TMP); |
1289 | |
1290 | print STDERR "computing intrinsic sizes: " if $trace; |
1291 | |
1292 | undef %intrinsics; |
1293 | |
1294 | print <<'EOF'; |
1295 | main() { |
1296 | char *mask = "%d %s\n"; |
1297 | EOF |
1298 | |
1299 | for $type (@intrinsics) { |
88793d73 |
1300 | next if !$type || $type eq 'void' || $type =~ /complex/; # sun stuff |
11aea360 |
1301 | print <<"EOF"; |
1302 | printf(mask,sizeof($type), "$type"); |
1303 | EOF |
9aec1e06 |
1304 | } |
11aea360 |
1305 | |
1306 | print <<'EOF'; |
1307 | printf(mask,sizeof(char *), "pointer"); |
1308 | exit(0); |
1309 | } |
1310 | EOF |
1311 | close TMP; |
1312 | |
1313 | select(STDOUT); |
2359510d |
1314 | open(PIPE, "cd $SAFEDIR && $CC $TMP && $SAFEDIR/a.out|"); |
11aea360 |
1315 | while (<PIPE>) { |
1316 | chop; |
1317 | split(' ',$_,2);; |
1318 | print "intrinsic $_[1] is size $_[0]\n" if $debug; |
1319 | $sizeof{$_[1]} = $_[0]; |
1320 | $intrinsics{$_[1]} = $template{$_[0]}; |
9aec1e06 |
1321 | } |
11aea360 |
1322 | close(PIPE) || die "couldn't read intrinsics!"; |
2359510d |
1323 | unlink($TMP, '$SAFEDIR/a.out'); |
11aea360 |
1324 | print STDERR "done\n" if $trace; |
9aec1e06 |
1325 | } |
11aea360 |
1326 | |
1327 | sub scripts2count { |
1328 | local($_) = @_; |
1329 | |
1330 | s/^\[//; |
1331 | s/\]$//; |
1332 | s/\]\[/*/g; |
1333 | $_ = eval; |
1334 | &panic("$_: $@") if $@; |
1335 | $_; |
1336 | } |
1337 | |
1338 | sub system { |
1339 | print STDERR "@_\n" if $trace; |
1340 | system @_; |
9aec1e06 |
1341 | } |
11aea360 |
1342 | |
9aec1e06 |
1343 | sub build_template { |
11aea360 |
1344 | local($name) = @_; |
1345 | |
1346 | &panic("already got a template for $name") if defined $template{$name}; |
1347 | |
1348 | local($build_templates) = 1; |
1349 | |
1350 | local($lparen) = '(' x $build_recursed; |
1351 | local($rparen) = ')' x $build_recursed; |
1352 | |
1353 | print STDERR "$lparen$name$rparen " if $trace; |
1354 | $build_recursed++; |
1355 | &pstruct($name,$name,0); |
1356 | print STDERR "TEMPLATE for $name is ", $template{&psou($name)}, "\n" if $debug; |
1357 | --$build_recursed; |
1358 | } |
1359 | |
1360 | |
1361 | sub panic { |
1362 | |
1363 | select(STDERR); |
1364 | |
1365 | print "\npanic: @_\n"; |
1366 | |
1367 | exit 1 if $] <= 4.003; # caller broken |
1368 | |
1369 | local($i,$_); |
1370 | local($p,$f,$l,$s,$h,$a,@a,@sub); |
1371 | for ($i = 0; ($p,$f,$l,$s,$h,$w) = caller($i); $i++) { |
1372 | @a = @DB'args; |
1373 | for (@a) { |
1374 | if (/^StB\000/ && length($_) == length($_main{'_main'})) { |
1375 | $_ = sprintf("%s",$_); |
1376 | } |
1377 | else { |
1378 | s/'/\\'/g; |
1379 | s/([^\0]*)/'$1'/ unless /^-?[\d.]+$/; |
1380 | s/([\200-\377])/sprintf("M-%c",ord($1)&0177)/eg; |
1381 | s/([\0-\37\177])/sprintf("^%c",ord($1)^64)/eg; |
1382 | } |
1383 | } |
1384 | $w = $w ? '@ = ' : '$ = '; |
1385 | $a = $h ? '(' . join(', ', @a) . ')' : ''; |
1386 | push(@sub, "$w&$s$a from file $f line $l\n"); |
1387 | last if $signal; |
1388 | } |
1389 | for ($i=0; $i <= $#sub; $i++) { |
1390 | last if $signal; |
1391 | print $sub[$i]; |
1392 | } |
1393 | exit 1; |
9aec1e06 |
1394 | } |
11aea360 |
1395 | |
1396 | sub squishseq { |
1397 | local($num); |
1398 | local($last) = -1e8; |
1399 | local($string); |
1400 | local($seq) = '..'; |
1401 | |
1402 | while (defined($num = shift)) { |
1403 | if ($num == ($last + 1)) { |
1404 | $string .= $seq unless $inseq++; |
1405 | $last = $num; |
1406 | next; |
1407 | } elsif ($inseq) { |
1408 | $string .= $last unless $last == -1e8; |
1409 | } |
1410 | |
1411 | $string .= ',' if defined $string; |
1412 | $string .= $num; |
1413 | $last = $num; |
1414 | $inseq = 0; |
1415 | } |
1416 | $string .= $last if $inseq && $last != -e18; |
1417 | $string; |
1418 | } |
8e07c86e |
1419 | |
1420 | sub repeat_template { |
1421 | # local($template, $scripts) = @_; have to change caller's values |
1422 | |
9aec1e06 |
1423 | if ( $_[1] ) { |
8e07c86e |
1424 | local($ncount) = &scripts2count($_[1]); |
1425 | if ($_[0] =~ /^\s*c\s*$/i) { |
1426 | $_[0] = "A$ncount "; |
1427 | $_[1] = ''; |
1428 | } else { |
1429 | $_[0] = $template x $ncount; |
1430 | } |
1431 | } |
1432 | } |
4633a7c4 |
1433 | !NO!SUBS! |
1434 | |
1435 | close OUT or die "Can't close $file: $!"; |
1436 | chmod 0755, $file or die "Can't reset permissions for $file: $!\n"; |
1437 | unlink 'pstruct'; |
16ed4686 |
1438 | print "Linking $file to pstruct.\n"; |
3a8dc7fa |
1439 | if (defined $Config{d_link}) { |
16ed4686 |
1440 | link $file, 'pstruct'; |
3a8dc7fa |
1441 | } else { |
1442 | unshift @INC, '../lib'; |
1443 | require File::Copy; |
1444 | File::Copy::syscopy('c2ph', 'pstruct'); |
1445 | } |
4633a7c4 |
1446 | exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':'; |
8a5546a1 |
1447 | chdir $origdir; |