Commit | Line | Data |
---|---|---|
4633a7c4 LW |
1 | #!/usr/local/bin/perl |
2 | ||
3 | use Config; | |
4 | use File::Basename qw(&basename &dirname); | |
8a5546a1 | 5 | use Cwd; |
231bc313 JH |
6 | use subs qw(link); |
7 | ||
6ef9d486 | 8 | sub link { # This is a cut-down version of installperl:link(). |
231bc313 JH |
9 | my($from,$to) = @_; |
10 | my($success) = 0; | |
11 | ||
12 | eval { | |
13 | CORE::link($from, $to) | |
14 | ? $success++ | |
15 | : ($from =~ m#^/afs/# || $to =~ m#^/afs/#) | |
16 | ? die "AFS" # okay inside eval {} | |
17 | : die "Couldn't link $from to $to: $!\n"; | |
18 | }; | |
19 | if ($@) { | |
20 | warn $@; | |
21 | require File::Copy; | |
22 | File::Copy::copy($from, $to) | |
23 | ? $success++ | |
24 | : warn "Couldn't copy $from to $to: $!\n"; | |
25 | } | |
26 | $success; | |
27 | } | |
4633a7c4 LW |
28 | |
29 | # List explicitly here the variables you want Configure to | |
30 | # generate. Metaconfig only looks for shell variables, so you | |
31 | # have to mention them as if they were shell variables, not | |
32 | # %Config entries. Thus you write | |
33 | # $startperl | |
34 | # to ensure Configure will look for $Config{startperl}. | |
35 | ||
36 | # This forces PL files to create target in same directory as PL file. | |
37 | # This is so that make depend always knows where to find PL derivatives. | |
8a5546a1 | 38 | $origdir = cwd; |
44a8e56a | 39 | chdir dirname($0); |
40 | $file = basename($0, '.PL'); | |
774d564b | 41 | $file .= '.com' if $^O eq 'VMS'; |
4633a7c4 LW |
42 | |
43 | open OUT,">$file" or die "Can't create $file: $!"; | |
44 | ||
45 | print "Extracting $file (with variable substitutions)\n"; | |
46 | ||
47 | # In this section, perl variables will be expanded during extraction. | |
48 | # You can use $Config{...} to use Configure variables. | |
49 | ||
50 | print OUT <<"!GROK!THIS!"; | |
5f05dabc | 51 | $Config{startperl} |
52 | eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}' | |
53 | if \$running_under_some_shell; | |
11aea360 LW |
54 | !GROK!THIS! |
55 | ||
4633a7c4 LW |
56 | # In the following, perl variables are not expanded during extraction. |
57 | ||
58 | print OUT <<'!NO!SUBS!'; | |
59 | # | |
11aea360 LW |
60 | # |
61 | # c2ph (aka pstruct) | |
62 | # Tom Christiansen, <tchrist@convex.com> | |
9aec1e06 | 63 | # |
11aea360 LW |
64 | # As pstruct, dump C structures as generated from 'cc -g -S' stabs. |
65 | # As c2ph, do this PLUS generate perl code for getting at the structures. | |
66 | # | |
67 | # See the usage message for more. If this isn't enough, read the code. | |
68 | # | |
69 | ||
9aec1e06 | 70 | =head1 NAME |
71 | ||
1fef88e7 | 72 | c2ph, pstruct - Dump C structures as generated from C<cc -g -S> stabs |
9aec1e06 | 73 | |
74 | =head1 SYNOPSIS | |
75 | ||
76 | c2ph [-dpnP] [var=val] [files ...] | |
77 | ||
78 | =head2 OPTIONS | |
79 | ||
80 | Options: | |
81 | ||
82 | -w wide; short for: type_width=45 member_width=35 offset_width=8 | |
83 | -x hex; short for: offset_fmt=x offset_width=08 size_fmt=x size_width=04 | |
84 | ||
85 | -n do not generate perl code (default when invoked as pstruct) | |
86 | -p generate perl code (default when invoked as c2ph) | |
87 | -v generate perl code, with C decls as comments | |
88 | ||
89 | -i do NOT recompute sizes for intrinsic datatypes | |
90 | -a dump information on intrinsics also | |
91 | ||
92 | -t trace execution | |
93 | -d spew reams of debugging output | |
94 | ||
95 | -slist give comma-separated list a structures to dump | |
96 | ||
97 | =head1 DESCRIPTION | |
98 | ||
99 | The following is the old c2ph.doc documentation by Tom Christiansen | |
100 | <tchrist@perl.com> | |
101 | Date: 25 Jul 91 08:10:21 GMT | |
102 | ||
103 | Once upon a time, I wrote a program called pstruct. It was a perl | |
104 | program that tried to parse out C structures and display their member | |
105 | offsets for you. This was especially useful for people looking at | |
106 | binary dumps or poking around the kernel. | |
107 | ||
108 | Pstruct was not a pretty program. Neither was it particularly robust. | |
109 | The problem, you see, was that the C compiler was much better at parsing | |
110 | C than I could ever hope to be. | |
111 | ||
112 | So I got smart: I decided to be lazy and let the C compiler parse the C, | |
113 | which would spit out debugger stabs for me to read. These were much | |
114 | easier to parse. It's still not a pretty program, but at least it's more | |
115 | robust. | |
116 | ||
117 | Pstruct takes any .c or .h files, or preferably .s ones, since that's | |
118 | the format it is going to massage them into anyway, and spits out | |
119 | listings like this: | |
120 | ||
1fef88e7 JM |
121 | struct tty { |
122 | int tty.t_locker 000 4 | |
123 | int tty.t_mutex_index 004 4 | |
124 | struct tty * tty.t_tp_virt 008 4 | |
125 | struct clist tty.t_rawq 00c 20 | |
126 | int tty.t_rawq.c_cc 00c 4 | |
127 | int tty.t_rawq.c_cmax 010 4 | |
128 | int tty.t_rawq.c_cfx 014 4 | |
129 | int tty.t_rawq.c_clx 018 4 | |
130 | struct tty * tty.t_rawq.c_tp_cpu 01c 4 | |
131 | struct tty * tty.t_rawq.c_tp_iop 020 4 | |
132 | unsigned char * tty.t_rawq.c_buf_cpu 024 4 | |
133 | unsigned char * tty.t_rawq.c_buf_iop 028 4 | |
134 | struct clist tty.t_canq 02c 20 | |
135 | int tty.t_canq.c_cc 02c 4 | |
136 | int tty.t_canq.c_cmax 030 4 | |
137 | int tty.t_canq.c_cfx 034 4 | |
138 | int tty.t_canq.c_clx 038 4 | |
139 | struct tty * tty.t_canq.c_tp_cpu 03c 4 | |
140 | struct tty * tty.t_canq.c_tp_iop 040 4 | |
141 | unsigned char * tty.t_canq.c_buf_cpu 044 4 | |
142 | unsigned char * tty.t_canq.c_buf_iop 048 4 | |
143 | struct clist tty.t_outq 04c 20 | |
144 | int tty.t_outq.c_cc 04c 4 | |
145 | int tty.t_outq.c_cmax 050 4 | |
146 | int tty.t_outq.c_cfx 054 4 | |
147 | int tty.t_outq.c_clx 058 4 | |
148 | struct tty * tty.t_outq.c_tp_cpu 05c 4 | |
149 | struct tty * tty.t_outq.c_tp_iop 060 4 | |
150 | unsigned char * tty.t_outq.c_buf_cpu 064 4 | |
151 | unsigned char * tty.t_outq.c_buf_iop 068 4 | |
152 | (*int)() tty.t_oproc_cpu 06c 4 | |
153 | (*int)() tty.t_oproc_iop 070 4 | |
154 | (*int)() tty.t_stopproc_cpu 074 4 | |
155 | (*int)() tty.t_stopproc_iop 078 4 | |
156 | struct thread * tty.t_rsel 07c 4 | |
157 | ||
158 | etc. | |
9aec1e06 | 159 | |
160 | ||
161 | Actually, this was generated by a particular set of options. You can control | |
162 | the formatting of each column, whether you prefer wide or fat, hex or decimal, | |
163 | leading zeroes or whatever. | |
164 | ||
165 | All you need to be able to use this is a C compiler than generates | |
1fef88e7 | 166 | BSD/GCC-style stabs. The B<-g> option on native BSD compilers and GCC |
9aec1e06 | 167 | should get this for you. |
168 | ||
1fef88e7 | 169 | To learn more, just type a bogus option, like B<-\?>, and a long usage message |
9aec1e06 | 170 | will be provided. There are a fair number of possibilities. |
171 | ||
172 | If you're only a C programmer, than this is the end of the message for you. | |
173 | You can quit right now, and if you care to, save off the source and run it | |
174 | when you feel like it. Or not. | |
175 | ||
176 | ||
177 | ||
178 | But if you're a perl programmer, then for you I have something much more | |
179 | wondrous than just a structure offset printer. | |
180 | ||
181 | You see, if you call pstruct by its other incybernation, c2ph, you have a code | |
182 | generator that translates C code into perl code! Well, structure and union | |
183 | declarations at least, but that's quite a bit. | |
184 | ||
185 | Prior to this point, anyone programming in perl who wanted to interact | |
186 | with C programs, like the kernel, was forced to guess the layouts of | |
5d0b5eb0 | 187 | the C structures, and then hardwire these into his program. Of course, |
9aec1e06 | 188 | when you took your wonderfully crafted program to a system where the |
5d0b5eb0 | 189 | sgtty structure was laid out differently, your program broke. Which is |
9aec1e06 | 190 | a shame. |
191 | ||
192 | We've had Larry's h2ph translator, which helped, but that only works on | |
193 | cpp symbols, not real C, which was also very much needed. What I offer | |
194 | you is a symbolic way of getting at all the C structures. I've couched | |
195 | them in terms of packages and functions. Consider the following program: | |
196 | ||
197 | #!/usr/local/bin/perl | |
198 | ||
199 | require 'syscall.ph'; | |
200 | require 'sys/time.ph'; | |
201 | require 'sys/resource.ph'; | |
202 | ||
203 | $ru = "\0" x &rusage'sizeof(); | |
204 | ||
205 | syscall(&SYS_getrusage, &RUSAGE_SELF, $ru) && die "getrusage: $!"; | |
206 | ||
207 | @ru = unpack($t = &rusage'typedef(), $ru); | |
208 | ||
209 | $utime = $ru[ &rusage'ru_utime + &timeval'tv_sec ] | |
210 | + ($ru[ &rusage'ru_utime + &timeval'tv_usec ]) / 1e6; | |
211 | ||
212 | $stime = $ru[ &rusage'ru_stime + &timeval'tv_sec ] | |
213 | + ($ru[ &rusage'ru_stime + &timeval'tv_usec ]) / 1e6; | |
214 | ||
215 | printf "you have used %8.3fs+%8.3fu seconds.\n", $utime, $stime; | |
216 | ||
217 | ||
218 | As you see, the name of the package is the name of the structure. Regular | |
1fef88e7 | 219 | fields are just their own names. Plus the following accessor functions are |
9aec1e06 | 220 | provided for your convenience: |
221 | ||
222 | struct This takes no arguments, and is merely the number of first-level | |
223 | elements in the structure. You would use this for indexing | |
224 | into arrays of structures, perhaps like this | |
225 | ||
226 | ||
227 | $usec = $u[ &user'u_utimer | |
228 | + (&ITIMER_VIRTUAL * &itimerval'struct) | |
229 | + &itimerval'it_value | |
230 | + &timeval'tv_usec | |
231 | ]; | |
232 | ||
233 | sizeof Returns the bytes in the structure, or the member if | |
234 | you pass it an argument, such as | |
235 | ||
236 | &rusage'sizeof(&rusage'ru_utime) | |
237 | ||
238 | typedef This is the perl format definition for passing to pack and | |
239 | unpack. If you ask for the typedef of a nothing, you get | |
240 | the whole structure, otherwise you get that of the member | |
241 | you ask for. Padding is taken care of, as is the magic to | |
242 | guarantee that a union is unpacked into all its aliases. | |
243 | Bitfields are not quite yet supported however. | |
244 | ||
245 | offsetof This function is the byte offset into the array of that | |
246 | member. You may wish to use this for indexing directly | |
247 | into the packed structure with vec() if you're too lazy | |
248 | to unpack it. | |
249 | ||
250 | typeof Not to be confused with the typedef accessor function, this | |
251 | one returns the C type of that field. This would allow | |
252 | you to print out a nice structured pretty print of some | |
253 | structure without knoning anything about it beforehand. | |
254 | No args to this one is a noop. Someday I'll post such | |
255 | a thing to dump out your u structure for you. | |
256 | ||
257 | ||
258 | The way I see this being used is like basically this: | |
259 | ||
260 | % h2ph <some_include_file.h > /usr/lib/perl/tmp.ph | |
261 | % c2ph some_include_file.h >> /usr/lib/perl/tmp.ph | |
262 | % install | |
263 | ||
264 | It's a little tricker with c2ph because you have to get the includes right. | |
265 | I can't know this for your system, but it's not usually too terribly difficult. | |
266 | ||
267 | The code isn't pretty as I mentioned -- I never thought it would be a 1000- | |
268 | line program when I started, or I might not have begun. :-) But I would have | |
269 | been less cavalier in how the parts of the program communicated with each | |
270 | other, etc. It might also have helped if I didn't have to divine the makeup | |
271 | of the stabs on the fly, and then account for micro differences between my | |
272 | compiler and gcc. | |
273 | ||
274 | Anyway, here it is. Should run on perl v4 or greater. Maybe less. | |
275 | ||
276 | ||
1fef88e7 | 277 | --tom |
9aec1e06 | 278 | |
279 | =cut | |
280 | ||
8e07c86e | 281 | $RCSID = '$Id: c2ph,v 1.7 95/10/28 10:41:47 tchrist Exp Locker: tchrist $'; |
11aea360 | 282 | |
2359510d | 283 | use File::Temp; |
11aea360 LW |
284 | |
285 | ###################################################################### | |
286 | ||
287 | # some handy data definitions. many of these can be reset later. | |
288 | ||
289 | $bitorder = 'b'; # ascending; set to B for descending bit fields | |
290 | ||
9aec1e06 | 291 | %intrinsics = |
11aea360 LW |
292 | %template = ( |
293 | 'char', 'c', | |
294 | 'unsigned char', 'C', | |
295 | 'short', 's', | |
296 | 'short int', 's', | |
297 | 'unsigned short', 'S', | |
298 | 'unsigned short int', 'S', | |
299 | 'short unsigned int', 'S', | |
300 | 'int', 'i', | |
301 | 'unsigned int', 'I', | |
302 | 'long', 'l', | |
303 | 'long int', 'l', | |
304 | 'unsigned long', 'L', | |
305 | 'unsigned long', 'L', | |
306 | 'long unsigned int', 'L', | |
307 | 'unsigned long int', 'L', | |
308 | 'long long', 'q', | |
309 | 'long long int', 'q', | |
310 | 'unsigned long long', 'Q', | |
311 | 'unsigned long long int', 'Q', | |
312 | 'float', 'f', | |
313 | 'double', 'd', | |
314 | 'pointer', 'p', | |
315 | 'null', 'x', | |
316 | 'neganull', 'X', | |
317 | 'bit', $bitorder, | |
9aec1e06 | 318 | ); |
11aea360 LW |
319 | |
320 | &buildscrunchlist; | |
321 | delete $intrinsics{'neganull'}; | |
322 | delete $intrinsics{'bit'}; | |
323 | delete $intrinsics{'null'}; | |
324 | ||
325 | # use -s to recompute sizes | |
326 | %sizeof = ( | |
327 | 'char', '1', | |
328 | 'unsigned char', '1', | |
329 | 'short', '2', | |
330 | 'short int', '2', | |
331 | 'unsigned short', '2', | |
332 | 'unsigned short int', '2', | |
333 | 'short unsigned int', '2', | |
334 | 'int', '4', | |
335 | 'unsigned int', '4', | |
336 | 'long', '4', | |
337 | 'long int', '4', | |
338 | 'unsigned long', '4', | |
339 | 'unsigned long int', '4', | |
340 | 'long unsigned int', '4', | |
341 | 'long long', '8', | |
342 | 'long long int', '8', | |
343 | 'unsigned long long', '8', | |
344 | 'unsigned long long int', '8', | |
345 | 'float', '4', | |
346 | 'double', '8', | |
347 | 'pointer', '4', | |
348 | ); | |
349 | ||
350 | ($type_width, $member_width, $offset_width, $size_width) = (20, 20, 6, 5); | |
351 | ||
352 | ($offset_fmt, $size_fmt) = ('d', 'd'); | |
353 | ||
354 | $indent = 2; | |
355 | ||
356 | $CC = 'cc'; | |
0e488909 JH |
357 | !NO!SUBS! |
358 | ||
359 | if (($Config{gccversion} || '') =~ /^(\d+)\.(\d+)/ | |
360 | and ($1 > 3 or ($1 == 3 and $2 >= 2))) { | |
361 | print OUT q/$CFLAGS = '-gstabs -S';/; | |
362 | } else { | |
363 | print OUT q/$CFLAGS = '-g -S';/; | |
364 | } | |
365 | ||
366 | print OUT <<'!NO!SUBS!'; | |
367 | ||
11aea360 LW |
368 | $DEFINES = ''; |
369 | ||
370 | $perl++ if $0 =~ m#/?c2ph$#; | |
371 | ||
fb5f65e1 | 372 | use Getopt::Std qw(getopts); |
11aea360 | 373 | |
0e488909 JH |
374 | use File::Temp 'tempdir'; |
375 | ||
11aea360 LW |
376 | eval '$'.$1.'$2;' while $ARGV[0] =~ /^([A-Za-z_]+=)(.*)/ && shift; |
377 | ||
fb5f65e1 | 378 | getopts('aixdpvtnws:') || &usage(0); |
11aea360 LW |
379 | |
380 | $opt_d && $debug++; | |
381 | $opt_t && $trace++; | |
382 | $opt_p && $perl++; | |
383 | $opt_v && $verbose++; | |
384 | $opt_n && ($perl = 0); | |
385 | ||
386 | if ($opt_w) { | |
387 | ($type_width, $member_width, $offset_width) = (45, 35, 8); | |
9aec1e06 | 388 | } |
11aea360 LW |
389 | if ($opt_x) { |
390 | ($offset_fmt, $offset_width, $size_fmt, $size_width) = ( 'x', '08', 'x', 04 ); | |
391 | } | |
392 | ||
393 | eval '$'.$1.'$2;' while $ARGV[0] =~ /^([A-Za-z_]+=)(.*)/ && shift; | |
394 | ||
395 | sub PLUMBER { | |
396 | select(STDERR); | |
397 | print "oops, apperent pager foulup\n"; | |
398 | $isatty++; | |
399 | &usage(1); | |
9aec1e06 | 400 | } |
11aea360 LW |
401 | |
402 | sub usage { | |
403 | local($oops) = @_; | |
404 | unless (-t STDOUT) { | |
405 | select(STDERR); | |
406 | } elsif (!$oops) { | |
407 | $isatty++; | |
408 | $| = 1; | |
409 | print "hit <RETURN> for further explanation: "; | |
410 | <STDIN>; | |
411 | open (PIPE, "|". ($ENV{PAGER} || 'more')); | |
412 | $SIG{PIPE} = PLUMBER; | |
413 | select(PIPE); | |
9aec1e06 | 414 | } |
11aea360 LW |
415 | |
416 | print "usage: $0 [-dpnP] [var=val] [files ...]\n"; | |
417 | ||
418 | exit unless $isatty; | |
419 | ||
420 | print <<EOF; | |
421 | ||
422 | Options: | |
423 | ||
424 | -w wide; short for: type_width=45 member_width=35 offset_width=8 | |
425 | -x hex; short for: offset_fmt=x offset_width=08 size_fmt=x size_width=04 | |
426 | ||
427 | -n do not generate perl code (default when invoked as pstruct) | |
428 | -p generate perl code (default when invoked as c2ph) | |
429 | -v generate perl code, with C decls as comments | |
430 | ||
431 | -i do NOT recompute sizes for intrinsic datatypes | |
432 | -a dump information on intrinsics also | |
433 | ||
434 | -t trace execution | |
435 | -d spew reams of debugging output | |
436 | ||
437 | -slist give comma-separated list a structures to dump | |
438 | ||
439 | ||
440 | Var Name Default Value Meaning | |
441 | ||
442 | EOF | |
443 | ||
444 | &defvar('CC', 'which_compiler to call'); | |
445 | &defvar('CFLAGS', 'how to generate *.s files with stabs'); | |
446 | &defvar('DEFINES','any extra cflags or cpp defines, like -I, -D, -U'); | |
447 | ||
448 | print "\n"; | |
449 | ||
450 | &defvar('type_width', 'width of type field (column 1)'); | |
451 | &defvar('member_width', 'width of member field (column 2)'); | |
452 | &defvar('offset_width', 'width of offset field (column 3)'); | |
453 | &defvar('size_width', 'width of size field (column 4)'); | |
454 | ||
455 | print "\n"; | |
456 | ||
457 | &defvar('offset_fmt', 'sprintf format type for offset'); | |
458 | &defvar('size_fmt', 'sprintf format type for size'); | |
459 | ||
460 | print "\n"; | |
461 | ||
462 | &defvar('indent', 'how far to indent each nesting level'); | |
463 | ||
464 | print <<'EOF'; | |
465 | ||
466 | If any *.[ch] files are given, these will be catted together into | |
467 | a temporary *.c file and sent through: | |
9aec1e06 | 468 | $CC $CFLAGS $DEFINES |
11aea360 LW |
469 | and the resulting *.s groped for stab information. If no files are |
470 | supplied, then stdin is read directly with the assumption that it | |
aa534ff5 | 471 | contains stab information. All other lines will be ignored. At |
11aea360 LW |
472 | most one *.s file should be supplied. |
473 | ||
474 | EOF | |
475 | close PIPE; | |
476 | exit 1; | |
9aec1e06 | 477 | } |
11aea360 LW |
478 | |
479 | sub defvar { | |
480 | local($var, $msg) = @_; | |
481 | printf "%-16s%-15s %s\n", $var, eval "\$$var", $msg; | |
9aec1e06 | 482 | } |
11aea360 | 483 | |
2359510d SD |
484 | sub safedir { |
485 | $SAFEDIR = File::Temp::tempdir("c2ph.XXXXXX", TMPDIR => 1, CLEANUP => 1) | |
486 | unless (defined($SAFEDIR)); | |
487 | } | |
488 | ||
489 | undef $SAFEDIR; | |
490 | ||
11aea360 LW |
491 | $recurse = 1; |
492 | ||
493 | if (@ARGV) { | |
494 | if (grep(!/\.[csh]$/,@ARGV)) { | |
495 | warn "Only *.[csh] files expected!\n"; | |
496 | &usage; | |
9aec1e06 | 497 | } |
11aea360 | 498 | elsif (grep(/\.s$/,@ARGV)) { |
9aec1e06 | 499 | if (@ARGV > 1) { |
11aea360 LW |
500 | warn "Only one *.s file allowed!\n"; |
501 | &usage; | |
502 | } | |
9aec1e06 | 503 | } |
11aea360 LW |
504 | elsif (@ARGV == 1 && $ARGV[0] =~ /\.c$/) { |
505 | local($dir, $file) = $ARGV[0] =~ m#(.*/)?(.*)$#; | |
2359510d | 506 | $chdir = "cd $dir && " if $dir; |
11aea360 LW |
507 | &system("$chdir$CC $CFLAGS $DEFINES $file") && exit 1; |
508 | $ARGV[0] =~ s/\.c$/.s/; | |
9aec1e06 | 509 | } |
11aea360 | 510 | else { |
2359510d SD |
511 | &safedir; |
512 | $TMP = "$SAFEDIR/c2ph.$$.c"; | |
11aea360 | 513 | &system("cat @ARGV > $TMP") && exit 1; |
2359510d | 514 | &system("cd $SAFEDIR && $CC $CFLAGS $DEFINES $TMP") && exit 1; |
11aea360 LW |
515 | unlink $TMP; |
516 | $TMP =~ s/\.c$/.s/; | |
517 | @ARGV = ($TMP); | |
9aec1e06 | 518 | } |
11aea360 LW |
519 | } |
520 | ||
521 | if ($opt_s) { | |
522 | for (split(/[\s,]+/, $opt_s)) { | |
523 | $interested{$_}++; | |
9aec1e06 | 524 | } |
525 | } | |
11aea360 LW |
526 | |
527 | ||
528 | $| = 1 if $debug; | |
529 | ||
530 | main: { | |
531 | ||
532 | if ($trace) { | |
9aec1e06 | 533 | if (-t && !@ARGV) { |
11aea360 LW |
534 | print STDERR "reading from your keyboard: "; |
535 | } else { | |
536 | print STDERR "reading from " . (@ARGV ? "@ARGV" : "<STDIN>").": "; | |
537 | } | |
538 | } | |
539 | ||
540 | STAB: while (<>) { | |
541 | if ($trace && !($. % 10)) { | |
542 | $lineno = $..''; | |
543 | print STDERR $lineno, "\b" x length($lineno); | |
9aec1e06 | 544 | } |
11aea360 LW |
545 | next unless /^\s*\.stabs\s+/; |
546 | $line = $_; | |
9aec1e06 | 547 | s/^\s*\.stabs\s+//; |
8e07c86e AD |
548 | if (s/\\\\"[d,]+$//) { |
549 | $saveline .= $line; | |
550 | $savebar = $_; | |
551 | next STAB; | |
9aec1e06 | 552 | } |
8e07c86e AD |
553 | if ($saveline) { |
554 | s/^"//; | |
555 | $_ = $savebar . $_; | |
556 | $line = $saveline; | |
9aec1e06 | 557 | } |
558 | &stab; | |
8e07c86e | 559 | $savebar = $saveline = undef; |
11aea360 LW |
560 | } |
561 | print STDERR "$.\n" if $trace; | |
562 | unlink $TMP if $TMP; | |
563 | ||
564 | &compute_intrinsics if $perl && !$opt_i; | |
565 | ||
566 | print STDERR "resolving types\n" if $trace; | |
567 | ||
568 | &resolve_types; | |
569 | &adjust_start_addrs; | |
570 | ||
571 | $sum = 2 + $type_width + $member_width; | |
9aec1e06 | 572 | $pmask1 = "%-${type_width}s %-${member_width}s"; |
11aea360 LW |
573 | $pmask2 = "%-${sum}s %${offset_width}${offset_fmt}%s %${size_width}${size_fmt}%s"; |
574 | ||
8e07c86e AD |
575 | |
576 | ||
11aea360 LW |
577 | if ($perl) { |
578 | # resolve template -- should be in stab define order, but even this isn't enough. | |
579 | print STDERR "\nbuilding type templates: " if $trace; | |
580 | for $i (reverse 0..$#type) { | |
581 | next unless defined($name = $type[$i]); | |
582 | next unless defined $struct{$name}; | |
8e07c86e | 583 | ($iname = $name) =~ s/\..*//; |
11aea360 LW |
584 | $build_recursed = 0; |
585 | &build_template($name) unless defined $template{&psou($name)} || | |
8e07c86e | 586 | $opt_s && !$interested{$iname}; |
9aec1e06 | 587 | } |
11aea360 LW |
588 | print STDERR "\n\n" if $trace; |
589 | } | |
590 | ||
591 | print STDERR "dumping structs: " if $trace; | |
592 | ||
8e07c86e AD |
593 | local($iam); |
594 | ||
595 | ||
11aea360 LW |
596 | |
597 | foreach $name (sort keys %struct) { | |
8e07c86e AD |
598 | ($iname = $name) =~ s/\..*//; |
599 | next if $opt_s && !$interested{$iname}; | |
11aea360 LW |
600 | print STDERR "$name " if $trace; |
601 | ||
602 | undef @sizeof; | |
603 | undef @typedef; | |
604 | undef @offsetof; | |
605 | undef @indices; | |
606 | undef @typeof; | |
8e07c86e | 607 | undef @fieldnames; |
11aea360 LW |
608 | |
609 | $mname = &munge($name); | |
610 | ||
611 | $fname = &psou($name); | |
612 | ||
613 | print "# " if $perl && $verbose; | |
614 | $pcode = ''; | |
9aec1e06 | 615 | print "$fname {\n" if !$perl || $verbose; |
11aea360 | 616 | $template{$fname} = &scrunch($template{$fname}) if $perl; |
9aec1e06 | 617 | &pstruct($name,$name,0); |
11aea360 | 618 | print "# " if $perl && $verbose; |
9aec1e06 | 619 | print "}\n" if !$perl || $verbose; |
11aea360 LW |
620 | print "\n" if $perl && $verbose; |
621 | ||
622 | if ($perl) { | |
623 | print "$pcode"; | |
624 | ||
625 | printf("\nsub %-32s { %4d; }\n\n", "${mname}'struct", $countof{$name}); | |
626 | ||
627 | print <<EOF; | |
9aec1e06 | 628 | sub ${mname}'typedef { |
11aea360 | 629 | local(\$${mname}'index) = shift; |
9aec1e06 | 630 | defined \$${mname}'index |
631 | ? \$${mname}'typedef[\$${mname}'index] | |
11aea360 LW |
632 | : \$${mname}'typedef; |
633 | } | |
634 | EOF | |
635 | ||
636 | print <<EOF; | |
9aec1e06 | 637 | sub ${mname}'sizeof { |
11aea360 | 638 | local(\$${mname}'index) = shift; |
9aec1e06 | 639 | defined \$${mname}'index |
640 | ? \$${mname}'sizeof[\$${mname}'index] | |
11aea360 LW |
641 | : \$${mname}'sizeof; |
642 | } | |
643 | EOF | |
644 | ||
645 | print <<EOF; | |
9aec1e06 | 646 | sub ${mname}'offsetof { |
11aea360 | 647 | local(\$${mname}'index) = shift; |
9aec1e06 | 648 | defined \$${mname}index |
649 | ? \$${mname}'offsetof[\$${mname}'index] | |
11aea360 LW |
650 | : \$${mname}'sizeof; |
651 | } | |
652 | EOF | |
653 | ||
654 | print <<EOF; | |
9aec1e06 | 655 | sub ${mname}'typeof { |
11aea360 | 656 | local(\$${mname}'index) = shift; |
9aec1e06 | 657 | defined \$${mname}index |
658 | ? \$${mname}'typeof[\$${mname}'index] | |
11aea360 LW |
659 | : '$name'; |
660 | } | |
661 | EOF | |
9aec1e06 | 662 | |
8e07c86e | 663 | print <<EOF; |
9aec1e06 | 664 | sub ${mname}'fieldnames { |
665 | \@${mname}'fieldnames; | |
8e07c86e AD |
666 | } |
667 | EOF | |
668 | ||
669 | $iam = ($isastruct{$name} && 's') || ($isaunion{$name} && 'u'); | |
9aec1e06 | 670 | |
8e07c86e | 671 | print <<EOF; |
9aec1e06 | 672 | sub ${mname}'isastruct { |
673 | '$iam'; | |
8e07c86e AD |
674 | } |
675 | EOF | |
11aea360 | 676 | |
9aec1e06 | 677 | print "\$${mname}'typedef = '" . &scrunch($template{$fname}) |
11aea360 LW |
678 | . "';\n"; |
679 | ||
680 | print "\$${mname}'sizeof = $sizeof{$name};\n\n"; | |
681 | ||
682 | ||
683 | print "\@${mname}'indices = (", &squishseq(@indices), ");\n"; | |
684 | ||
685 | print "\n"; | |
686 | ||
687 | print "\@${mname}'typedef[\@${mname}'indices] = (", | |
688 | join("\n\t", '', @typedef), "\n );\n\n"; | |
689 | print "\@${mname}'sizeof[\@${mname}'indices] = (", | |
690 | join("\n\t", '', @sizeof), "\n );\n\n"; | |
691 | print "\@${mname}'offsetof[\@${mname}'indices] = (", | |
692 | join("\n\t", '', @offsetof), "\n );\n\n"; | |
693 | print "\@${mname}'typeof[\@${mname}'indices] = (", | |
694 | join("\n\t", '', @typeof), "\n );\n\n"; | |
8e07c86e AD |
695 | print "\@${mname}'fieldnames[\@${mname}'indices] = (", |
696 | join("\n\t", '', @fieldnames), "\n );\n\n"; | |
11aea360 LW |
697 | |
698 | $template_printed{$fname}++; | |
699 | $size_printed{$fname}++; | |
9aec1e06 | 700 | } |
11aea360 LW |
701 | print "\n"; |
702 | } | |
703 | ||
704 | print STDERR "\n" if $trace; | |
705 | ||
9aec1e06 | 706 | unless ($perl && $opt_a) { |
8e07c86e | 707 | print "\n1;\n" if $perl; |
11aea360 LW |
708 | exit; |
709 | } | |
710 | ||
711 | ||
712 | ||
713 | foreach $name (sort bysizevalue keys %intrinsics) { | |
714 | next if $size_printed{$name}; | |
715 | print '$',&munge($name),"'sizeof = ", $sizeof{$name}, ";\n"; | |
716 | } | |
717 | ||
718 | print "\n"; | |
719 | ||
720 | sub bysizevalue { $sizeof{$a} <=> $sizeof{$b}; } | |
721 | ||
722 | ||
723 | foreach $name (sort keys %intrinsics) { | |
724 | print '$',&munge($name),"'typedef = '", $template{$name}, "';\n"; | |
725 | } | |
726 | ||
8e07c86e | 727 | print "\n1;\n" if $perl; |
9aec1e06 | 728 | |
11aea360 LW |
729 | exit; |
730 | } | |
731 | ||
732 | ######################################################################################## | |
733 | ||
734 | ||
735 | sub stab { | |
8e07c86e | 736 | next unless $continued || /:[\$\w]+(\(\d+,\d+\))?=[\*\$\w]+/; # (\d+,\d+) is for sun |
11aea360 LW |
737 | s/"// || next; |
738 | s/",([x\d]+),([x\d]+),([x\d]+),.*// || next; | |
739 | ||
740 | next if /^\s*$/; | |
741 | ||
742 | $size = $3 if $3; | |
8e07c86e AD |
743 | $_ = $continued . $_ if length($continued); |
744 | if (s/\\\\$//) { | |
745 | # if last 2 chars of string are '\\' then stab is continued | |
746 | # in next stab entry | |
747 | chop; | |
748 | $continued = $_; | |
749 | next; | |
750 | } | |
751 | $continued = ''; | |
11aea360 LW |
752 | |
753 | ||
754 | $line = $_; | |
755 | ||
756 | if (($name, $pdecl) = /^([\$ \w]+):[tT]((\d+)(=[rufs*](\d+))+)$/) { | |
757 | print "$name is a typedef for some funky pointers: $pdecl\n" if $debug; | |
758 | &pdecl($pdecl); | |
759 | next; | |
760 | } | |
761 | ||
762 | ||
763 | ||
9aec1e06 | 764 | if (/(([ \w]+):t(\d+|\(\d+,\d+\)))=r?(\d+|\(\d+,\d+\))(;\d+;\d+;)?/) { |
11aea360 LW |
765 | local($ident) = $2; |
766 | push(@intrinsics, $ident); | |
767 | $typeno = &typeno($3); | |
768 | $type[$typeno] = $ident; | |
9aec1e06 | 769 | print STDERR "intrinsic $ident in new type $typeno\n" if $debug; |
11aea360 LW |
770 | next; |
771 | } | |
772 | ||
9aec1e06 | 773 | if (($name, $typeordef, $typeno, $extra, $struct, $_) |
774 | = /^([\$ \w]+):([ustT])(\d+|\(\d+,\d+\))(=[rufs*](\d+))?(.*)$/) | |
11aea360 LW |
775 | { |
776 | $typeno = &typeno($typeno); # sun foolery | |
9aec1e06 | 777 | } |
11aea360 LW |
778 | elsif (/^[\$\w]+:/) { |
779 | next; # variable | |
780 | } | |
9aec1e06 | 781 | else { |
11aea360 LW |
782 | warn "can't grok stab: <$_> in: $line " if $_; |
783 | next; | |
9aec1e06 | 784 | } |
11aea360 LW |
785 | |
786 | #warn "got size $size for $name\n"; | |
787 | $sizeof{$name} = $size if $size; | |
788 | ||
789 | s/;[-\d]*;[-\d]*;$//; # we don't care about ranges | |
790 | ||
791 | $typenos{$name} = $typeno; | |
792 | ||
793 | unless (defined $type[$typeno]) { | |
794 | &panic("type 0??") unless $typeno; | |
795 | $type[$typeno] = $name unless defined $type[$typeno]; | |
796 | printf "new type $typeno is $name" if $debug; | |
797 | if ($extra =~ /\*/ && defined $type[$struct]) { | |
798 | print ", a typedef for a pointer to " , $type[$struct] if $debug; | |
799 | } | |
800 | } else { | |
801 | printf "%s is type %d", $name, $typeno if $debug; | |
802 | print ", a typedef for " , $type[$typeno] if $debug; | |
9aec1e06 | 803 | } |
11aea360 LW |
804 | print "\n" if $debug; |
805 | #next unless $extra =~ /[su*]/; | |
806 | ||
807 | #$type[$struct] = $name; | |
808 | ||
809 | if ($extra =~ /[us*]/) { | |
810 | &sou($name, $extra); | |
811 | $_ = &sdecl($name, $_, 0); | |
812 | } | |
813 | elsif (/^=ar/) { | |
814 | print "it's a bare array typedef -- that's pretty sick\n" if $debug; | |
815 | $_ = "$typeno$_"; | |
816 | $scripts = ''; | |
817 | $_ = &adecl($_,1); | |
818 | ||
819 | } | |
820 | elsif (s/((\w+):t(\d+|\(\d+,\d+\)))?=r?(;\d+;\d+;)?//) { # the ?'s are for gcc | |
821 | push(@intrinsics, $2); | |
822 | $typeno = &typeno($3); | |
823 | $type[$typeno] = $2; | |
9aec1e06 | 824 | print STDERR "intrinsic $2 in new type $typeno\n" if $debug; |
11aea360 | 825 | } |
8e07c86e | 826 | elsif (s/^=e//) { # blessed be thy compiler; mine won't do this |
11aea360 | 827 | &edecl; |
9aec1e06 | 828 | } |
11aea360 LW |
829 | else { |
830 | warn "Funny remainder for $name on line $_ left in $line " if $_; | |
9aec1e06 | 831 | } |
11aea360 LW |
832 | } |
833 | ||
834 | sub typeno { # sun thinks types are (0,27) instead of just 27 | |
835 | local($_) = @_; | |
836 | s/\(\d+,(\d+)\)/$1/; | |
837 | $_; | |
9aec1e06 | 838 | } |
11aea360 LW |
839 | |
840 | sub pstruct { | |
9aec1e06 | 841 | local($what,$prefix,$base) = @_; |
842 | local($field, $fieldname, $typeno, $count, $offset, $entry); | |
11aea360 | 843 | local($fieldtype); |
9aec1e06 | 844 | local($type, $tname); |
11aea360 LW |
845 | local($mytype, $mycount, $entry2); |
846 | local($struct_count) = 0; | |
847 | local($pad, $revpad, $length, $prepad, $lastoffset, $lastlength, $fmt); | |
848 | local($bits,$bytes); | |
849 | local($template); | |
850 | ||
851 | ||
852 | local($mname) = &munge($name); | |
853 | ||
9aec1e06 | 854 | sub munge { |
11aea360 LW |
855 | local($_) = @_; |
856 | s/[\s\$\.]/_/g; | |
857 | $_; | |
858 | } | |
859 | ||
860 | local($sname) = &psou($what); | |
861 | ||
862 | $nesting++; | |
863 | ||
864 | for $field (split(/;/, $struct{$what})) { | |
865 | $pad = $prepad = 0; | |
9aec1e06 | 866 | $entry = ''; |
867 | ($fieldname, $typeno, $count, $offset, $length) = split(/,/, $field); | |
11aea360 LW |
868 | |
869 | $type = $type[$typeno]; | |
870 | ||
871 | $type =~ /([^[]*)(\[.*\])?/; | |
872 | $mytype = $1; | |
873 | $count .= $2; | |
874 | $fieldtype = &psou($mytype); | |
875 | ||
876 | local($fname) = &psou($name); | |
877 | ||
878 | if ($build_templates) { | |
879 | ||
9aec1e06 | 880 | $pad = ($offset - ($lastoffset + $lastlength))/8 |
11aea360 LW |
881 | if defined $lastoffset; |
882 | ||
883 | if (! $finished_template{$sname}) { | |
884 | if ($isaunion{$what}) { | |
885 | $template{$sname} .= 'X' x $revpad . ' ' if $revpad; | |
886 | } else { | |
887 | $template{$sname} .= 'x' x $pad . ' ' if $pad; | |
888 | } | |
889 | } | |
890 | ||
8e07c86e AD |
891 | $template = &fetch_template($type); |
892 | &repeat_template($template,$count); | |
11aea360 LW |
893 | |
894 | if (! $finished_template{$sname}) { | |
895 | $template{$sname} .= $template; | |
896 | } | |
897 | ||
898 | $revpad = $length/8 if $isaunion{$what}; | |
899 | ||
900 | ($lastoffset, $lastlength) = ($offset, $length); | |
901 | ||
9aec1e06 | 902 | } else { |
11aea360 LW |
903 | print '# ' if $perl && $verbose; |
904 | $entry = sprintf($pmask1, | |
905 | ' ' x ($nesting * $indent) . $fieldtype, | |
9aec1e06 | 906 | "$prefix.$fieldname" . $count); |
11aea360 | 907 | |
9aec1e06 | 908 | $entry =~ s/(\*+)( )/$2$1/; |
11aea360 LW |
909 | |
910 | printf $pmask2, | |
911 | $entry, | |
912 | ($base+$offset)/8, | |
913 | ($bits = ($base+$offset)%8) ? ".$bits" : " ", | |
914 | $length/8, | |
915 | ($bits = $length % 8) ? ".$bits": "" | |
916 | if !$perl || $verbose; | |
917 | ||
8e07c86e AD |
918 | if ($perl) { |
919 | $template = &fetch_template($type); | |
920 | &repeat_template($template,$count); | |
921 | } | |
11aea360 LW |
922 | |
923 | if ($perl && $nesting == 1) { | |
8e07c86e | 924 | |
11aea360 LW |
925 | push(@sizeof, int($length/8) .",\t# $fieldname"); |
926 | push(@offsetof, int($offset/8) .",\t# $fieldname"); | |
8e07c86e AD |
927 | local($little) = &scrunch($template); |
928 | push(@typedef, "'$little', \t# $fieldname"); | |
11aea360 | 929 | $type =~ s/(struct|union) //; |
8e07c86e | 930 | push(@typeof, "'$mytype" . ($count ? $count : '') . |
11aea360 | 931 | "',\t# $fieldname"); |
8e07c86e | 932 | push(@fieldnames, "'$fieldname',"); |
11aea360 LW |
933 | } |
934 | ||
935 | print ' ', ' ' x $indent x $nesting, $template | |
936 | if $perl && $verbose; | |
937 | ||
938 | print "\n" if !$perl || $verbose; | |
939 | ||
9aec1e06 | 940 | } |
11aea360 LW |
941 | if ($perl) { |
942 | local($mycount) = defined $struct{$mytype} ? $countof{$mytype} : 1; | |
943 | $mycount *= &scripts2count($count) if $count; | |
944 | if ($nesting==1 && !$build_templates) { | |
9aec1e06 | 945 | $pcode .= sprintf("sub %-32s { %4d; }\n", |
11aea360 LW |
946 | "${mname}'${fieldname}", $struct_count); |
947 | push(@indices, $struct_count); | |
948 | } | |
949 | $struct_count += $mycount; | |
9aec1e06 | 950 | } |
11aea360 LW |
951 | |
952 | ||
9aec1e06 | 953 | &pstruct($type, "$prefix.$fieldname", $base+$offset) |
954 | if $recurse && defined $struct{$type}; | |
11aea360 LW |
955 | } |
956 | ||
957 | $countof{$what} = $struct_count unless defined $countof{$whati}; | |
958 | ||
959 | $template{$sname} .= '$' if $build_templates; | |
960 | $finished_template{$sname}++; | |
961 | ||
962 | if ($build_templates && !defined $sizeof{$name}) { | |
963 | local($fmt) = &scrunch($template{$sname}); | |
964 | print STDERR "no size for $name, punting with $fmt..." if $debug; | |
965 | eval '$sizeof{$name} = length(pack($fmt, ()))'; | |
966 | if ($@) { | |
967 | chop $@; | |
968 | warn "couldn't get size for \$name: $@"; | |
969 | } else { | |
970 | print STDERR $sizeof{$name}, "\n" if $debUg; | |
971 | } | |
9aec1e06 | 972 | } |
11aea360 LW |
973 | |
974 | --$nesting; | |
975 | } | |
976 | ||
977 | ||
978 | sub psize { | |
9aec1e06 | 979 | local($me) = @_; |
11aea360 LW |
980 | local($amstruct) = $struct{$me} ? 'struct ' : ''; |
981 | ||
9aec1e06 | 982 | print '$sizeof{\'', $amstruct, $me, '\'} = '; |
983 | printf "%d;\n", $sizeof{$me}; | |
11aea360 LW |
984 | } |
985 | ||
986 | sub pdecl { | |
987 | local($pdecl) = @_; | |
988 | local(@pdecls); | |
989 | local($tname); | |
990 | ||
991 | warn "pdecl: $pdecl\n" if $debug; | |
992 | ||
993 | $pdecl =~ s/\(\d+,(\d+)\)/$1/g; | |
9aec1e06 | 994 | $pdecl =~ s/\*//g; |
995 | @pdecls = split(/=/, $pdecl); | |
11aea360 LW |
996 | $typeno = $pdecls[0]; |
997 | $tname = pop @pdecls; | |
998 | ||
9aec1e06 | 999 | if ($tname =~ s/^f//) { $tname = "$tname&"; } |
1000 | #else { $tname = "$tname*"; } | |
11aea360 LW |
1001 | |
1002 | for (reverse @pdecls) { | |
9aec1e06 | 1003 | $tname .= s/^f// ? "&" : "*"; |
11aea360 LW |
1004 | #$tname =~ s/^f(.*)/$1&/; |
1005 | print "type[$_] is $tname\n" if $debug; | |
1006 | $type[$_] = $tname unless defined $type[$_]; | |
9aec1e06 | 1007 | } |
11aea360 LW |
1008 | } |
1009 | ||
1010 | ||
1011 | ||
1012 | sub adecl { | |
1013 | ($arraytype, $unknown, $lower, $upper) = (); | |
1014 | #local($typeno); | |
1015 | # global $typeno, @type | |
1016 | local($_, $typedef) = @_; | |
1017 | ||
8e07c86e | 1018 | while (s/^((\d+|\(\d+,\d+\))=)?ar(\d+|\(\d+,\d+\));//) { |
9aec1e06 | 1019 | ($arraytype, $unknown) = ($2, $3); |
8e07c86e AD |
1020 | $arraytype = &typeno($arraytype); |
1021 | $unknown = &typeno($unknown); | |
11aea360 | 1022 | if (s/^(\d+);(\d+);//) { |
9aec1e06 | 1023 | ($lower, $upper) = ($1, $2); |
1024 | $scripts .= '[' . ($upper+1) . ']'; | |
11aea360 | 1025 | } else { |
9aec1e06 | 1026 | warn "can't find array bounds: $_"; |
1027 | } | |
11aea360 | 1028 | } |
8e07c86e | 1029 | if (s/^([(,)\d*f=]*),(\d+),(\d+);//) { |
9aec1e06 | 1030 | ($start, $length) = ($2, $3); |
8e07c86e AD |
1031 | $whatis = $1; |
1032 | if ($whatis =~ /^(\d+|\(\d+,\d+\))=/) { | |
1033 | $typeno = &typeno($1); | |
11aea360 LW |
1034 | &pdecl($whatis); |
1035 | } else { | |
8e07c86e | 1036 | $typeno = &typeno($whatis); |
11aea360 LW |
1037 | } |
1038 | } elsif (s/^(\d+)(=[*suf]\d*)//) { | |
9aec1e06 | 1039 | local($whatis) = $2; |
11aea360 LW |
1040 | |
1041 | if ($whatis =~ /[f*]/) { | |
9aec1e06 | 1042 | &pdecl($whatis); |
1043 | } elsif ($whatis =~ /[su]/) { # | |
1044 | print "$prefix.$fieldname is an array$scripts anon structs; disgusting\n" | |
11aea360 LW |
1045 | if $debug; |
1046 | #$type[$typeno] = $name unless defined $type[$typeno]; | |
1047 | ##printf "new type $typeno is $name" if $debug; | |
1048 | $typeno = $1; | |
1049 | $type[$typeno] = "$prefix.$fieldname"; | |
1050 | local($name) = $type[$typeno]; | |
1051 | &sou($name, $whatis); | |
1052 | $_ = &sdecl($name, $_, $start+$offset); | |
1053 | 1; | |
1054 | $start = $start{$name}; | |
1055 | $offset = $sizeof{$name}; | |
1056 | $length = $offset; | |
1057 | } else { | |
1058 | warn "what's this? $whatis in $line "; | |
9aec1e06 | 1059 | } |
11aea360 LW |
1060 | } elsif (/^\d+$/) { |
1061 | $typeno = $_; | |
1062 | } else { | |
1063 | warn "bad array stab: $_ in $line "; | |
1064 | next STAB; | |
9aec1e06 | 1065 | } |
11aea360 | 1066 | #local($wasdef) = defined($type[$typeno]) && $debug; |
9aec1e06 | 1067 | #if ($typedef) { |
11aea360 LW |
1068 | #print "redefining $type[$typeno] to " if $wasdef; |
1069 | #$type[$typeno] = "$whatis$scripts"; # unless defined $type[$typeno]; | |
1070 | #print "$type[$typeno]\n" if $wasdef; | |
1071 | #} else { | |
1072 | #$type[$arraytype] = $type[$typeno] unless defined $type[$arraytype]; | |
1073 | #} | |
1074 | $type[$arraytype] = "$type[$typeno]$scripts" if defined $type[$typeno]; | |
1075 | print "type[$arraytype] is $type[$arraytype]\n" if $debug; | |
1076 | print "$prefix.$fieldname is an array of $type[$arraytype]\n" if $debug; | |
1077 | $_; | |
1078 | } | |
1079 | ||
1080 | ||
1081 | ||
1082 | sub sdecl { | |
1083 | local($prefix, $_, $offset) = @_; | |
1084 | ||
1085 | local($fieldname, $scripts, $type, $arraytype, $unknown, | |
1086 | $whatis, $pdecl, $upper,$lower, $start,$length) = (); | |
1087 | local($typeno,$sou); | |
1088 | ||
1089 | ||
1090 | SFIELD: | |
1091 | while (/^([^;]+);/) { | |
1092 | $scripts = ''; | |
1093 | warn "sdecl $_\n" if $debug; | |
9aec1e06 | 1094 | if (s/^([\$\w]+)://) { |
11aea360 | 1095 | $fieldname = $1; |
9aec1e06 | 1096 | } elsif (s/(\d+)=([us])(\d+|\(\d+,\d+\))//) { # |
11aea360 LW |
1097 | $typeno = &typeno($1); |
1098 | $type[$typeno] = "$prefix.$fieldname"; | |
1099 | local($name) = "$prefix.$fieldname"; | |
1100 | &sou($name,$2); | |
1101 | $_ = &sdecl("$prefix.$fieldname", $_, $start+$offset); | |
1102 | $start = $start{$name}; | |
1103 | $offset += $sizeof{$name}; | |
1104 | #print "done with anon, start is $start, offset is $offset\n"; | |
1105 | #next SFIELD; | |
1106 | } else { | |
1107 | warn "weird field $_ of $line" if $debug; | |
1108 | next STAB; | |
1109 | #$fieldname = &gensym; | |
1110 | #$_ = &sdecl("$prefix.$fieldname", $_, $start+$offset); | |
1111 | } | |
1112 | ||
8e07c86e | 1113 | if (/^(\d+|\(\d+,\d+\))=ar/) { |
11aea360 LW |
1114 | $_ = &adecl($_); |
1115 | } | |
1116 | elsif (s/^(\d+|\(\d+,\d+\))?,(\d+),(\d+);//) { | |
8e07c86e AD |
1117 | ($start, $length) = ($2, $3); |
1118 | &panic("no length?") unless $length; | |
1119 | $typeno = &typeno($1) if $1; | |
1120 | } | |
1121 | elsif (s/^(\d+)=xs\w+:,(\d+),(\d+);//) { | |
9aec1e06 | 1122 | ($start, $length) = ($2, $3); |
11aea360 LW |
1123 | &panic("no length?") unless $length; |
1124 | $typeno = &typeno($1) if $1; | |
1125 | } | |
1126 | elsif (s/^((\d+|\(\d+,\d+\))(=[*f](\d+|\(\d+,\d+\)))+),(\d+),(\d+);//) { | |
9aec1e06 | 1127 | ($pdecl, $start, $length) = ($1,$5,$6); |
1128 | &pdecl($pdecl); | |
11aea360 LW |
1129 | } |
1130 | elsif (s/(\d+)=([us])(\d+|\(\d+,\d+\))//) { # the dratted anon struct | |
1131 | ($typeno, $sou) = ($1, $2); | |
1132 | $typeno = &typeno($typeno); | |
1133 | if (defined($type[$typeno])) { | |
1134 | warn "now how did we get type $1 in $fieldname of $line?"; | |
1135 | } else { | |
1136 | print "anon type $typeno is $prefix.$fieldname\n" if $debug; | |
1137 | $type[$typeno] = "$prefix.$fieldname" unless defined $type[$typeno]; | |
1138 | }; | |
1139 | local($name) = "$prefix.$fieldname"; | |
1140 | &sou($name,$sou); | |
1141 | print "anon ".($isastruct{$name}) ? "struct":"union"." for $prefix.$fieldname\n" if $debug; | |
1142 | $type[$typeno] = "$prefix.$fieldname"; | |
9aec1e06 | 1143 | $_ = &sdecl("$prefix.$fieldname", $_, $start+$offset); |
11aea360 LW |
1144 | $start = $start{$name}; |
1145 | $length = $sizeof{$name}; | |
1146 | } | |
1147 | else { | |
9aec1e06 | 1148 | warn "can't grok stab for $name ($_) in line $line "; |
1149 | next STAB; | |
11aea360 LW |
1150 | } |
1151 | ||
1152 | &panic("no length for $prefix.$fieldname") unless $length; | |
1153 | $struct{$name} .= join(',', $fieldname, $typeno, $scripts, $start, $length) . ';'; | |
1154 | } | |
1155 | if (s/;\d*,(\d+),(\d+);//) { | |
9aec1e06 | 1156 | local($start, $size) = ($1, $2); |
11aea360 | 1157 | $sizeof{$prefix} = $size; |
9aec1e06 | 1158 | print "start of $prefix is $start, size of $sizeof{$prefix}\n" if $debug; |
1159 | $start{$prefix} = $start; | |
1160 | } | |
11aea360 LW |
1161 | $_; |
1162 | } | |
1163 | ||
1164 | sub edecl { | |
1165 | s/;$//; | |
1166 | $enum{$name} = $_; | |
1167 | $_ = ''; | |
9aec1e06 | 1168 | } |
11aea360 LW |
1169 | |
1170 | sub resolve_types { | |
1171 | local($sou); | |
1172 | for $i (0 .. $#type) { | |
1173 | next unless defined $type[$i]; | |
1174 | $_ = $type[$i]; | |
1175 | unless (/\d/) { | |
1176 | print "type[$i] $type[$i]\n" if $debug; | |
1177 | next; | |
1178 | } | |
1179 | print "type[$i] $_ ==> " if $debug; | |
1180 | s/^(\d+)(\**)\&\*(\**)/"$2($3".&type($1) . ')()'/e; | |
9aec1e06 | 1181 | s/^(\d+)\&/&type($1)/e; |
1182 | s/^(\d+)/&type($1)/e; | |
11aea360 LW |
1183 | s/(\*+)([^*]+)(\*+)/$1$3$2/; |
1184 | s/\((\*+)(\w+)(\*+)\)/$3($1$2)/; | |
1185 | s/^(\d+)([\*\[].*)/&type($1).$2/e; | |
1186 | #s/(\d+)(\*|(\[[\[\]\d\*]+]\])+)/&type($1).$2/ge; | |
1187 | $type[$i] = $_; | |
1188 | print "$_\n" if $debug; | |
1189 | } | |
1190 | } | |
9aec1e06 | 1191 | sub type { &psou($type[$_[0]] || "<UNDEFINED>"); } |
11aea360 LW |
1192 | |
1193 | sub adjust_start_addrs { | |
1194 | for (sort keys %start) { | |
1195 | ($basename = $_) =~ s/\.[^.]+$//; | |
1196 | $start{$_} += $start{$basename}; | |
1197 | print "start: $_ @ $start{$_}\n" if $debug; | |
1198 | } | |
1199 | } | |
1200 | ||
1201 | sub sou { | |
1202 | local($what, $_) = @_; | |
1203 | /u/ && $isaunion{$what}++; | |
1204 | /s/ && $isastruct{$what}++; | |
1205 | } | |
1206 | ||
1207 | sub psou { | |
1208 | local($what) = @_; | |
1209 | local($prefix) = ''; | |
1210 | if ($isaunion{$what}) { | |
1211 | $prefix = 'union '; | |
1212 | } elsif ($isastruct{$what}) { | |
1213 | $prefix = 'struct '; | |
1214 | } | |
1215 | $prefix . $what; | |
1216 | } | |
1217 | ||
1218 | sub scrunch { | |
1219 | local($_) = @_; | |
1220 | ||
8e07c86e AD |
1221 | return '' if $_ eq ''; |
1222 | ||
11aea360 LW |
1223 | study; |
1224 | ||
1225 | s/\$//g; | |
1226 | s/ / /g; | |
1227 | 1 while s/(\w) \1/$1$1/g; | |
1228 | ||
1229 | # i wanna say this, but perl resists my efforts: | |
1230 | # s/(\w)(\1+)/$2 . length($1)/ge; | |
1231 | ||
1232 | &quick_scrunch; | |
1233 | ||
1234 | s/ $//; | |
1235 | ||
1236 | $_; | |
1237 | } | |
1238 | ||
1239 | sub buildscrunchlist { | |
1240 | $scrunch_code = "sub quick_scrunch {\n"; | |
1241 | for (values %intrinsics) { | |
4633a7c4 | 1242 | $scrunch_code .= "\ts/(${_}{2,})/'$_' . length(\$1)/ge;\n"; |
9aec1e06 | 1243 | } |
11aea360 LW |
1244 | $scrunch_code .= "}\n"; |
1245 | print "$scrunch_code" if $debug; | |
1246 | eval $scrunch_code; | |
1247 | &panic("can't eval scrunch_code $@ \nscrunch_code") if $@; | |
9aec1e06 | 1248 | } |
11aea360 LW |
1249 | |
1250 | sub fetch_template { | |
1251 | local($mytype) = @_; | |
1252 | local($fmt); | |
1253 | local($count) = 1; | |
1254 | ||
1255 | &panic("why do you care?") unless $perl; | |
1256 | ||
1257 | if ($mytype =~ s/(\[\d+\])+$//) { | |
1258 | $count .= $1; | |
9aec1e06 | 1259 | } |
11aea360 LW |
1260 | |
1261 | if ($mytype =~ /\*/) { | |
1262 | $fmt = $template{'pointer'}; | |
9aec1e06 | 1263 | } |
11aea360 LW |
1264 | elsif (defined $template{$mytype}) { |
1265 | $fmt = $template{$mytype}; | |
9aec1e06 | 1266 | } |
11aea360 LW |
1267 | elsif (defined $struct{$mytype}) { |
1268 | if (!defined $template{&psou($mytype)}) { | |
1269 | &build_template($mytype) unless $mytype eq $name; | |
9aec1e06 | 1270 | } |
11aea360 LW |
1271 | elsif ($template{&psou($mytype)} !~ /\$$/) { |
1272 | #warn "incomplete template for $mytype\n"; | |
9aec1e06 | 1273 | } |
11aea360 | 1274 | $fmt = $template{&psou($mytype)} || '?'; |
9aec1e06 | 1275 | } |
11aea360 LW |
1276 | else { |
1277 | warn "unknown fmt for $mytype\n"; | |
1278 | $fmt = '?'; | |
9aec1e06 | 1279 | } |
11aea360 LW |
1280 | |
1281 | $fmt x $count . ' '; | |
1282 | } | |
1283 | ||
1284 | sub compute_intrinsics { | |
2359510d SD |
1285 | &safedir; |
1286 | local($TMP) = "$SAFEDIR/c2ph-i.$$.c"; | |
11aea360 LW |
1287 | open (TMP, ">$TMP") || die "can't open $TMP: $!"; |
1288 | select(TMP); | |
1289 | ||
1290 | print STDERR "computing intrinsic sizes: " if $trace; | |
1291 | ||
1292 | undef %intrinsics; | |
1293 | ||
1294 | print <<'EOF'; | |
1295 | main() { | |
1296 | char *mask = "%d %s\n"; | |
1297 | EOF | |
1298 | ||
1299 | for $type (@intrinsics) { | |
88793d73 | 1300 | next if !$type || $type eq 'void' || $type =~ /complex/; # sun stuff |
11aea360 LW |
1301 | print <<"EOF"; |
1302 | printf(mask,sizeof($type), "$type"); | |
1303 | EOF | |
9aec1e06 | 1304 | } |
11aea360 LW |
1305 | |
1306 | print <<'EOF'; | |
1307 | printf(mask,sizeof(char *), "pointer"); | |
1308 | exit(0); | |
1309 | } | |
1310 | EOF | |
1311 | close TMP; | |
1312 | ||
1313 | select(STDOUT); | |
2359510d | 1314 | open(PIPE, "cd $SAFEDIR && $CC $TMP && $SAFEDIR/a.out|"); |
11aea360 LW |
1315 | while (<PIPE>) { |
1316 | chop; | |
1317 | split(' ',$_,2);; | |
1318 | print "intrinsic $_[1] is size $_[0]\n" if $debug; | |
1319 | $sizeof{$_[1]} = $_[0]; | |
1320 | $intrinsics{$_[1]} = $template{$_[0]}; | |
9aec1e06 | 1321 | } |
11aea360 | 1322 | close(PIPE) || die "couldn't read intrinsics!"; |
d7e66b2c | 1323 | unlink($TMP, "$SAFEDIR/a.out"); |
11aea360 | 1324 | print STDERR "done\n" if $trace; |
9aec1e06 | 1325 | } |
11aea360 LW |
1326 | |
1327 | sub scripts2count { | |
1328 | local($_) = @_; | |
1329 | ||
1330 | s/^\[//; | |
1331 | s/\]$//; | |
1332 | s/\]\[/*/g; | |
1333 | $_ = eval; | |
1334 | &panic("$_: $@") if $@; | |
1335 | $_; | |
1336 | } | |
1337 | ||
1338 | sub system { | |
1339 | print STDERR "@_\n" if $trace; | |
1340 | system @_; | |
9aec1e06 | 1341 | } |
11aea360 | 1342 | |
9aec1e06 | 1343 | sub build_template { |
11aea360 LW |
1344 | local($name) = @_; |
1345 | ||
1346 | &panic("already got a template for $name") if defined $template{$name}; | |
1347 | ||
1348 | local($build_templates) = 1; | |
1349 | ||
1350 | local($lparen) = '(' x $build_recursed; | |
1351 | local($rparen) = ')' x $build_recursed; | |
1352 | ||
1353 | print STDERR "$lparen$name$rparen " if $trace; | |
1354 | $build_recursed++; | |
1355 | &pstruct($name,$name,0); | |
1356 | print STDERR "TEMPLATE for $name is ", $template{&psou($name)}, "\n" if $debug; | |
1357 | --$build_recursed; | |
1358 | } | |
1359 | ||
1360 | ||
1361 | sub panic { | |
1362 | ||
1363 | select(STDERR); | |
1364 | ||
1365 | print "\npanic: @_\n"; | |
1366 | ||
1367 | exit 1 if $] <= 4.003; # caller broken | |
1368 | ||
1369 | local($i,$_); | |
1370 | local($p,$f,$l,$s,$h,$a,@a,@sub); | |
1371 | for ($i = 0; ($p,$f,$l,$s,$h,$w) = caller($i); $i++) { | |
1372 | @a = @DB'args; | |
1373 | for (@a) { | |
1374 | if (/^StB\000/ && length($_) == length($_main{'_main'})) { | |
1375 | $_ = sprintf("%s",$_); | |
1376 | } | |
1377 | else { | |
1378 | s/'/\\'/g; | |
1379 | s/([^\0]*)/'$1'/ unless /^-?[\d.]+$/; | |
1380 | s/([\200-\377])/sprintf("M-%c",ord($1)&0177)/eg; | |
1381 | s/([\0-\37\177])/sprintf("^%c",ord($1)^64)/eg; | |
1382 | } | |
1383 | } | |
1384 | $w = $w ? '@ = ' : '$ = '; | |
1385 | $a = $h ? '(' . join(', ', @a) . ')' : ''; | |
1386 | push(@sub, "$w&$s$a from file $f line $l\n"); | |
1387 | last if $signal; | |
1388 | } | |
1389 | for ($i=0; $i <= $#sub; $i++) { | |
1390 | last if $signal; | |
1391 | print $sub[$i]; | |
1392 | } | |
1393 | exit 1; | |
9aec1e06 | 1394 | } |
11aea360 LW |
1395 | |
1396 | sub squishseq { | |
1397 | local($num); | |
1398 | local($last) = -1e8; | |
1399 | local($string); | |
1400 | local($seq) = '..'; | |
1401 | ||
1402 | while (defined($num = shift)) { | |
1403 | if ($num == ($last + 1)) { | |
1404 | $string .= $seq unless $inseq++; | |
1405 | $last = $num; | |
1406 | next; | |
1407 | } elsif ($inseq) { | |
1408 | $string .= $last unless $last == -1e8; | |
1409 | } | |
1410 | ||
1411 | $string .= ',' if defined $string; | |
1412 | $string .= $num; | |
1413 | $last = $num; | |
1414 | $inseq = 0; | |
1415 | } | |
1416 | $string .= $last if $inseq && $last != -e18; | |
1417 | $string; | |
1418 | } | |
8e07c86e AD |
1419 | |
1420 | sub repeat_template { | |
1421 | # local($template, $scripts) = @_; have to change caller's values | |
1422 | ||
9aec1e06 | 1423 | if ( $_[1] ) { |
8e07c86e AD |
1424 | local($ncount) = &scripts2count($_[1]); |
1425 | if ($_[0] =~ /^\s*c\s*$/i) { | |
1426 | $_[0] = "A$ncount "; | |
1427 | $_[1] = ''; | |
1428 | } else { | |
1429 | $_[0] = $template x $ncount; | |
1430 | } | |
1431 | } | |
1432 | } | |
4633a7c4 LW |
1433 | !NO!SUBS! |
1434 | ||
1435 | close OUT or die "Can't close $file: $!"; | |
1436 | chmod 0755, $file or die "Can't reset permissions for $file: $!\n"; | |
1437 | unlink 'pstruct'; | |
16ed4686 | 1438 | print "Linking $file to pstruct.\n"; |
3a8dc7fa | 1439 | if (defined $Config{d_link}) { |
16ed4686 | 1440 | link $file, 'pstruct'; |
3a8dc7fa | 1441 | } else { |
1442 | unshift @INC, '../lib'; | |
1443 | require File::Copy; | |
1444 | File::Copy::syscopy('c2ph', 'pstruct'); | |
1445 | } | |
4633a7c4 | 1446 | exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':'; |
8a5546a1 | 1447 | chdir $origdir; |