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