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