1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
25 *
26 * Copyright 2015 Nexenta Systems, Inc. All rights reserved.
27 * Copyright 2018 Joyent, Inc.
28 */
29
30 /*
31 * This program is used to generate the contents of the
32 * struct_layout_XXX.c files that contain per-architecture
33 * structure layout information.
34 *
35 * Although not part of elfdump, it is built by the makefile
36 * along with it.
37 * To use it:
38 *
39 * 1) Run it, capturing the output in a file.
40 * 2) If this is a replacement for an existing file,
41 * diff the new and old copies to ensure only
42 * the changes you expected are present.
43 * 3) Put the new file in the common directory under the name
44 * struct_layout_XXX.c, where XXX is the name of
45 * the architecture (i386, amd64, sparc, sparcv9, etc).
46 * 2) Add any necessary header and copyright comments.
47 * 3) If this is a new architecture:
48 * - Add an extern statement for struct_layout_XXX()
49 * to struct_layout.h
50 * - Add a case for it to the function sl_struct_layout()
51 * in struct_layout.c.
52 */
53
54 #include <string.h>
55 #include <stdio.h>
56 #include <stdlib.h>
57 #include <ctype.h>
58 #include <err.h>
59 #include <sys/types.h>
60 #include <libctf.h>
61
62 /*
63 * This extracts CTF information from a temporary object file.
64 *
65 * START and END bracket a struct layout definition. They issue
66 * the typedef boilerplate, and the standard first element (sizeof)
67 * which captures the overall size of the structure.
68 *
69 * SCALAR_FIELD is for scalar struct fields
70 *
71 * ARRAY_FIELD is for array struct fields
72 *
73 * ARRAY_TYPE is for plain (non-struct) array types
74 */
75 #define START(_name, _type) \
76 do_start(#_name, #_type)
77 #define END (void) \
78 do_end()
79 #define SCALAR_FIELD(_type, _field, _sign) \
80 do_scalar_field(#_type, #_field, _sign, NULL)
81 #define SCALAR_FIELD4(_type, _field, _sign, _rtype) \
82 do_scalar_field(#_type, #_field, _sign, _rtype)
83 #define ARRAY_FIELD(_type, _field, _sign) \
84 do_array_field(#_type, #_field, _sign, NULL)
85 #define ARRAY_TYPE(_type, _sign) \
86 do_array_type(#_type, "elt0", _sign)
87
88 static void do_start(char *_name, char *_type);
89 static void do_end(void);
90 static void do_start_name(char *name);
91 static void do_start_sizeof(char *_type, char *realtype);
92 static void do_scalar_field(char *_type, char *_field,
93 int _sign, char *dotfield);
94 static void do_array_field(char *_type, char *_field,
95 int _sign, char *dotfield);
96 static void do_array_type(char *_type, char *_field, int _sign);
97
98 static void get_ctf_file(char *fname);
99 static int get_field_info(char *tname, char *fname, char *dotname,
100 int *offp, int *sizep);
101
102 static ctf_file_t *ctf;
103 static char *objfile;
104 static char *machname;
105
106 /* auxv_t, <sys/auxv.h> */
107 static void
108 gen_auxv(void)
109 {
110 START(auxv, auxv_t);
111
112 SCALAR_FIELD(auxv_t, a_type, 1);
113 SCALAR_FIELD(auxv_t, a_un.a_val, 1);
114 SCALAR_FIELD(auxv_t, a_un.a_ptr, 0);
115 SCALAR_FIELD(auxv_t, a_un.a_fcn, 0);
116
117 END;
118 }
119
120
121 /* prgregset_t, <sys/prgregset.h> */
122 static void
123 gen_prgregset(void)
124 {
125 START(prgregset, prgregset_t);
126
127 ARRAY_TYPE(prgregset_t, 0);
128
129 END;
130 }
131
132
133 /* lwpstatus_t, <sys/procfs.h> */
134 static void
135 gen_lwpstatus(void)
136 {
137 START(lwpstatus, lwpstatus_t);
138
139 SCALAR_FIELD(lwpstatus_t, pr_flags, 0);
140 SCALAR_FIELD(lwpstatus_t, pr_lwpid, 0);
141 SCALAR_FIELD(lwpstatus_t, pr_why, 0);
142 SCALAR_FIELD(lwpstatus_t, pr_what, 0);
143 SCALAR_FIELD(lwpstatus_t, pr_cursig, 0);
144 SCALAR_FIELD(lwpstatus_t, pr_info, 0);
145 SCALAR_FIELD(lwpstatus_t, pr_lwppend, 0);
146 SCALAR_FIELD(lwpstatus_t, pr_lwphold, 0);
147 SCALAR_FIELD(lwpstatus_t, pr_action, 0);
148 SCALAR_FIELD(lwpstatus_t, pr_altstack, 0);
149 SCALAR_FIELD(lwpstatus_t, pr_oldcontext, 0);
150 SCALAR_FIELD(lwpstatus_t, pr_syscall, 0);
151 SCALAR_FIELD(lwpstatus_t, pr_nsysarg, 0);
152 SCALAR_FIELD(lwpstatus_t, pr_errno, 0);
153 ARRAY_FIELD(lwpstatus_t, pr_sysarg, 0);
154 SCALAR_FIELD(lwpstatus_t, pr_rval1, 0);
155 SCALAR_FIELD(lwpstatus_t, pr_rval2, 0);
156 ARRAY_FIELD(lwpstatus_t, pr_clname, 0);
157 SCALAR_FIELD(lwpstatus_t, pr_tstamp, 0);
158 SCALAR_FIELD(lwpstatus_t, pr_utime, 0);
159 SCALAR_FIELD(lwpstatus_t, pr_stime, 0);
160 SCALAR_FIELD(lwpstatus_t, pr_errpriv, 0);
161 SCALAR_FIELD(lwpstatus_t, pr_ustack, 0);
162 SCALAR_FIELD(lwpstatus_t, pr_instr, 0);
163 SCALAR_FIELD(lwpstatus_t, pr_reg, 0);
164 SCALAR_FIELD(lwpstatus_t, pr_fpreg, 0);
165
166 END;
167 }
168
169
170 /* pstatus_t, <sys/procfs.h> */
171 static void
172 gen_pstatus(void)
173 {
174 START(pstatus, pstatus_t);
175
176 SCALAR_FIELD(pstatus_t, pr_flags, 1);
177 SCALAR_FIELD(pstatus_t, pr_nlwp, 1);
178 SCALAR_FIELD(pstatus_t, pr_pid, 0);
179 SCALAR_FIELD(pstatus_t, pr_ppid, 0);
180 SCALAR_FIELD(pstatus_t, pr_pgid, 0);
181 SCALAR_FIELD(pstatus_t, pr_sid, 0);
182 SCALAR_FIELD(pstatus_t, pr_aslwpid, 1);
183 SCALAR_FIELD(pstatus_t, pr_agentid, 1);
184 SCALAR_FIELD(pstatus_t, pr_sigpend, 0);
185 SCALAR_FIELD(pstatus_t, pr_brkbase, 0);
186 SCALAR_FIELD(pstatus_t, pr_brksize, 0);
187 SCALAR_FIELD(pstatus_t, pr_stkbase, 0);
188 SCALAR_FIELD(pstatus_t, pr_stksize, 0);
189 SCALAR_FIELD(pstatus_t, pr_utime, 0);
190 SCALAR_FIELD(pstatus_t, pr_stime, 0);
191 SCALAR_FIELD(pstatus_t, pr_cutime, 0);
192 SCALAR_FIELD(pstatus_t, pr_cstime, 0);
193 SCALAR_FIELD(pstatus_t, pr_sigtrace, 0);
194 SCALAR_FIELD(pstatus_t, pr_flttrace, 0);
195 SCALAR_FIELD(pstatus_t, pr_sysentry, 0);
196 SCALAR_FIELD(pstatus_t, pr_sysexit, 0);
197 SCALAR_FIELD(pstatus_t, pr_dmodel, 0);
198 SCALAR_FIELD(pstatus_t, pr_taskid, 1);
199 SCALAR_FIELD(pstatus_t, pr_projid, 1);
200 SCALAR_FIELD(pstatus_t, pr_nzomb, 1);
201 SCALAR_FIELD(pstatus_t, pr_zoneid, 1);
202 SCALAR_FIELD(pstatus_t, pr_lwp, 0);
203
204 END;
205 }
206
207
208 /* prstatus_t, <sys/old_procfs.h> */
209 static void
210 gen_prstatus(void)
211 {
212 START(prstatus, prstatus_t);
213
214 SCALAR_FIELD(prstatus_t, pr_flags, 1);
215 SCALAR_FIELD(prstatus_t, pr_why, 1);
216 SCALAR_FIELD(prstatus_t, pr_what, 1);
217 SCALAR_FIELD(prstatus_t, pr_info, 0);
218 SCALAR_FIELD(prstatus_t, pr_cursig, 1);
219 SCALAR_FIELD(prstatus_t, pr_nlwp, 0);
220 SCALAR_FIELD(prstatus_t, pr_sigpend, 0);
221 SCALAR_FIELD(prstatus_t, pr_sighold, 0);
222 SCALAR_FIELD(prstatus_t, pr_altstack, 0);
223 SCALAR_FIELD(prstatus_t, pr_action, 0);
224 SCALAR_FIELD(prstatus_t, pr_pid, 0);
225 SCALAR_FIELD(prstatus_t, pr_ppid, 0);
226 SCALAR_FIELD(prstatus_t, pr_pgrp, 0);
227 SCALAR_FIELD(prstatus_t, pr_sid, 0);
228 SCALAR_FIELD(prstatus_t, pr_utime, 0);
229 SCALAR_FIELD(prstatus_t, pr_stime, 0);
230 SCALAR_FIELD(prstatus_t, pr_cutime, 0);
231 SCALAR_FIELD(prstatus_t, pr_cstime, 0);
232 ARRAY_FIELD(prstatus_t, pr_clname, 0);
233 SCALAR_FIELD(prstatus_t, pr_syscall, 1);
234 SCALAR_FIELD(prstatus_t, pr_nsysarg, 1);
235 ARRAY_FIELD(prstatus_t, pr_sysarg, 1);
236 SCALAR_FIELD(prstatus_t, pr_who, 0);
237 SCALAR_FIELD(prstatus_t, pr_lwppend, 0);
238 SCALAR_FIELD(prstatus_t, pr_oldcontext, 0);
239 SCALAR_FIELD(prstatus_t, pr_brkbase, 0);
240 SCALAR_FIELD(prstatus_t, pr_brksize, 0);
241 SCALAR_FIELD(prstatus_t, pr_stkbase, 0);
242 SCALAR_FIELD(prstatus_t, pr_stksize, 0);
243 SCALAR_FIELD(prstatus_t, pr_processor, 1);
244 SCALAR_FIELD(prstatus_t, pr_bind, 1);
245 SCALAR_FIELD(prstatus_t, pr_instr, 1);
246 SCALAR_FIELD(prstatus_t, pr_reg, 0);
247
248 END;
249 }
250
251
252 /* psinfo_t, <sys/procfs.h> */
253 static void
254 gen_psinfo(void)
255 {
256 START(psinfo, psinfo_t);
257
258 SCALAR_FIELD(psinfo_t, pr_flag, 1);
259 SCALAR_FIELD(psinfo_t, pr_nlwp, 1);
260 SCALAR_FIELD(psinfo_t, pr_pid, 0);
261 SCALAR_FIELD(psinfo_t, pr_ppid, 0);
262 SCALAR_FIELD(psinfo_t, pr_pgid, 0);
263 SCALAR_FIELD(psinfo_t, pr_sid, 0);
264 SCALAR_FIELD(psinfo_t, pr_uid, 0);
265 SCALAR_FIELD(psinfo_t, pr_euid, 0);
266 SCALAR_FIELD(psinfo_t, pr_gid, 0);
267 SCALAR_FIELD(psinfo_t, pr_egid, 0);
268 SCALAR_FIELD(psinfo_t, pr_addr, 0);
269 SCALAR_FIELD(psinfo_t, pr_size, 0);
270 SCALAR_FIELD(psinfo_t, pr_rssize, 0);
271 SCALAR_FIELD(psinfo_t, pr_ttydev, 0);
272 SCALAR_FIELD(psinfo_t, pr_pctcpu, 0);
273 SCALAR_FIELD(psinfo_t, pr_pctmem, 0);
274 SCALAR_FIELD(psinfo_t, pr_start, 0);
275 SCALAR_FIELD(psinfo_t, pr_time, 0);
276 SCALAR_FIELD(psinfo_t, pr_ctime, 0);
277 ARRAY_FIELD(psinfo_t, pr_fname, 0);
278 ARRAY_FIELD(psinfo_t, pr_psargs, 0);
279 SCALAR_FIELD(psinfo_t, pr_wstat, 1);
280 SCALAR_FIELD(psinfo_t, pr_argc, 1);
281 SCALAR_FIELD(psinfo_t, pr_argv, 0);
282 SCALAR_FIELD(psinfo_t, pr_envp, 0);
283 SCALAR_FIELD(psinfo_t, pr_dmodel, 0);
284 SCALAR_FIELD(psinfo_t, pr_taskid, 0);
285 SCALAR_FIELD(psinfo_t, pr_projid, 0);
286 SCALAR_FIELD(psinfo_t, pr_nzomb, 1);
287 SCALAR_FIELD(psinfo_t, pr_poolid, 0);
288 SCALAR_FIELD(psinfo_t, pr_zoneid, 0);
289 SCALAR_FIELD(psinfo_t, pr_contract, 0);
290 SCALAR_FIELD(psinfo_t, pr_lwp, 0);
291
292 END;
293 }
294
295 /* prpsinfo_t, <sys/old_procfs.h> */
296 static void
297 gen_prpsinfo(void)
298 {
299 START(prpsinfo, prpsinfo_t);
300
301 SCALAR_FIELD(prpsinfo_t, pr_state, 0);
302 SCALAR_FIELD(prpsinfo_t, pr_sname, 0);
303 SCALAR_FIELD(prpsinfo_t, pr_zomb, 0);
304 SCALAR_FIELD(prpsinfo_t, pr_nice, 0);
305 SCALAR_FIELD(prpsinfo_t, pr_flag, 0);
306 SCALAR_FIELD(prpsinfo_t, pr_uid, 0);
307 SCALAR_FIELD(prpsinfo_t, pr_gid, 0);
308 SCALAR_FIELD(prpsinfo_t, pr_pid, 0);
309 SCALAR_FIELD(prpsinfo_t, pr_ppid, 0);
310 SCALAR_FIELD(prpsinfo_t, pr_pgrp, 0);
311 SCALAR_FIELD(prpsinfo_t, pr_sid, 0);
312 SCALAR_FIELD(prpsinfo_t, pr_addr, 0);
313 SCALAR_FIELD(prpsinfo_t, pr_size, 0);
314 SCALAR_FIELD(prpsinfo_t, pr_rssize, 0);
315 SCALAR_FIELD(prpsinfo_t, pr_wchan, 0);
316 SCALAR_FIELD(prpsinfo_t, pr_start, 0);
317 SCALAR_FIELD(prpsinfo_t, pr_time, 0);
318 SCALAR_FIELD(prpsinfo_t, pr_pri, 1);
319 SCALAR_FIELD(prpsinfo_t, pr_oldpri, 0);
320 SCALAR_FIELD(prpsinfo_t, pr_cpu, 0);
321 SCALAR_FIELD(prpsinfo_t, pr_ottydev, 0);
322 SCALAR_FIELD(prpsinfo_t, pr_lttydev, 0);
323 ARRAY_FIELD(prpsinfo_t, pr_clname, 0);
324 ARRAY_FIELD(prpsinfo_t, pr_fname, 0);
325 ARRAY_FIELD(prpsinfo_t, pr_psargs, 0);
326 SCALAR_FIELD(prpsinfo_t, pr_syscall, 1);
327 SCALAR_FIELD(prpsinfo_t, pr_ctime, 0);
328 SCALAR_FIELD(prpsinfo_t, pr_bysize, 0);
329 SCALAR_FIELD(prpsinfo_t, pr_byrssize, 0);
330 SCALAR_FIELD(prpsinfo_t, pr_argc, 1);
331 SCALAR_FIELD(prpsinfo_t, pr_argv, 0);
332 SCALAR_FIELD(prpsinfo_t, pr_envp, 0);
333 SCALAR_FIELD(prpsinfo_t, pr_wstat, 1);
334 SCALAR_FIELD(prpsinfo_t, pr_pctcpu, 0);
335 SCALAR_FIELD(prpsinfo_t, pr_pctmem, 0);
336 SCALAR_FIELD(prpsinfo_t, pr_euid, 0);
337 SCALAR_FIELD(prpsinfo_t, pr_egid, 0);
338 SCALAR_FIELD(prpsinfo_t, pr_aslwpid, 0);
339 SCALAR_FIELD(prpsinfo_t, pr_dmodel, 0);
340
341 END;
342 }
343
344 /* lwpsinfo_t, <sys/procfs.h> */
345 static void
346 gen_lwpsinfo(void)
347 {
348 START(lwpsinfo, lwpsinfo_t);
349
350 SCALAR_FIELD(lwpsinfo_t, pr_flag, 1);
351 SCALAR_FIELD(lwpsinfo_t, pr_lwpid, 0);
352 SCALAR_FIELD(lwpsinfo_t, pr_addr, 0);
353 SCALAR_FIELD(lwpsinfo_t, pr_wchan, 0);
354 SCALAR_FIELD(lwpsinfo_t, pr_stype, 0);
355 SCALAR_FIELD(lwpsinfo_t, pr_state, 0);
356 SCALAR_FIELD(lwpsinfo_t, pr_sname, 0);
357 SCALAR_FIELD(lwpsinfo_t, pr_nice, 0);
358 SCALAR_FIELD(lwpsinfo_t, pr_syscall, 0);
359 SCALAR_FIELD(lwpsinfo_t, pr_oldpri, 0);
360 SCALAR_FIELD(lwpsinfo_t, pr_cpu, 0);
361 SCALAR_FIELD(lwpsinfo_t, pr_pri, 1);
362 SCALAR_FIELD(lwpsinfo_t, pr_pctcpu, 0);
363 SCALAR_FIELD(lwpsinfo_t, pr_start, 0);
364 SCALAR_FIELD(lwpsinfo_t, pr_time, 0);
365 ARRAY_FIELD(lwpsinfo_t, pr_clname, 0);
366 ARRAY_FIELD(lwpsinfo_t, pr_name, 0);
367 SCALAR_FIELD(lwpsinfo_t, pr_onpro, 1);
368 SCALAR_FIELD(lwpsinfo_t, pr_bindpro, 1);
369 SCALAR_FIELD(lwpsinfo_t, pr_bindpset, 1);
370 SCALAR_FIELD(lwpsinfo_t, pr_lgrp, 1);
371
372 END;
373 }
374
375 /* prcred_t, <sys/procfs.h> */
376 static void
377 gen_prcred(void)
378 {
379 START(prcred, prcred_t);
380
381 SCALAR_FIELD(prcred_t, pr_euid, 0);
382 SCALAR_FIELD(prcred_t, pr_ruid, 0);
383 SCALAR_FIELD(prcred_t, pr_suid, 0);
384 SCALAR_FIELD(prcred_t, pr_egid, 0);
385 SCALAR_FIELD(prcred_t, pr_rgid, 0);
386 SCALAR_FIELD(prcred_t, pr_sgid, 0);
387 SCALAR_FIELD(prcred_t, pr_ngroups, 1);
388 ARRAY_FIELD(prcred_t, pr_groups, 0);
389
390 END;
391 }
392
393 /* prpriv_t, <sys/procfs.h> */
394 static void
395 gen_prpriv(void)
396 {
397 START(prpriv, prpriv_t);
398
399 SCALAR_FIELD(prpriv_t, pr_nsets, 0);
400 SCALAR_FIELD(prpriv_t, pr_setsize, 0);
401 SCALAR_FIELD(prpriv_t, pr_infosize, 0);
402 ARRAY_FIELD(prpriv_t, pr_sets, 0);
403
404 END;
405 }
406
407
408 /* priv_impl_info_t, <sys/priv.h> */
409 static void
410 gen_priv_impl_info(void)
411 {
412 START(priv_impl_info, priv_impl_info_t);
413
414 SCALAR_FIELD(priv_impl_info_t, priv_headersize, 0);
415 SCALAR_FIELD(priv_impl_info_t, priv_flags, 0);
416 SCALAR_FIELD(priv_impl_info_t, priv_nsets, 0);
417 SCALAR_FIELD(priv_impl_info_t, priv_setsize, 0);
418 SCALAR_FIELD(priv_impl_info_t, priv_max, 0);
419 SCALAR_FIELD(priv_impl_info_t, priv_infosize, 0);
420 SCALAR_FIELD(priv_impl_info_t, priv_globalinfosize, 0);
421
422 END;
423 }
424
425
426 /* fltset_t, <sys/fault.h> */
427 static void
428 gen_fltset(void)
429 {
430 START(fltset, fltset_t);
431
432 ARRAY_FIELD(fltset_t, word, 0);
433
434 END;
435 }
436
437 /*
438 * Layout description of siginfo_t, <sys/siginfo.h>
439 *
440 * Note: many siginfo_t members are #defines mapping to
441 * long dotted members of sub-structs or unions, and
442 * we need the full member spec (with dots) for those.
443 */
444 static void
445 gen_siginfo(void)
446 {
447 START(siginfo, siginfo_t);
448
449 SCALAR_FIELD(siginfo_t, si_signo, 0);
450 SCALAR_FIELD(siginfo_t, si_errno, 0);
451 SCALAR_FIELD(siginfo_t, si_code, 1);
452
453 SCALAR_FIELD4(siginfo_t, si_value.sival_int, 0,
454 "__data.__proc.__pdata.__kill.__value.sival_int");
455
456 SCALAR_FIELD4(siginfo_t, si_value.sival_ptr, 0,
457 "__data.__proc.__pdata.__kill.__value.sival_ptr");
458
459 SCALAR_FIELD4(siginfo_t, si_pid, 0,
460 "__data.__proc.__pid");
461
462 SCALAR_FIELD4(siginfo_t, si_uid, 0,
463 "__data.__proc.__pdata.__kill.__uid");
464
465 SCALAR_FIELD4(siginfo_t, si_ctid, 0,
466 "__data.__proc.__ctid");
467
468 SCALAR_FIELD4(siginfo_t, si_zoneid, 0,
469 "__data.__proc.__zoneid");
470
471 SCALAR_FIELD4(siginfo_t, si_entity, 0,
472 "__data.__rctl.__entity");
473
474 SCALAR_FIELD4(siginfo_t, si_addr, 0,
475 "__data.__fault.__addr");
476
477 SCALAR_FIELD4(siginfo_t, si_status, 0,
478 "__data.__proc.__pdata.__cld.__status");
479
480 SCALAR_FIELD4(siginfo_t, si_band, 0,
481 "__data.__file.__band");
482
483 END;
484 }
485
486 /* sigset_t, <sys/signal.h> */
487 static void
488 gen_sigset(void)
489 {
490 START(sigset, sigset_t);
491
492 ARRAY_FIELD(sigset_t, __sigbits, 0);
493
494 END;
495 }
496
497
498 /* struct sigaction, <sys/signal.h> */
499 static void
500 gen_sigaction(void)
501 {
502 START(sigaction, struct sigaction);
503
504 SCALAR_FIELD(struct sigaction, sa_flags, 0);
505
506 SCALAR_FIELD4(struct sigaction, sa_handler, 0,
507 "_funcptr._handler");
508
509 SCALAR_FIELD4(struct sigaction, sa_sigaction, 0,
510 "_funcptr._sigaction");
511
512 SCALAR_FIELD(struct sigaction, sa_mask, 0);
513
514 END;
515 }
516
517 /* stack_t, <sys/signal.h> */
518 static void
519 gen_stack(void)
520 {
521 START(stack, stack_t);
522
523 SCALAR_FIELD(stack_t, ss_sp, 0);
524 SCALAR_FIELD(stack_t, ss_size, 0);
525 SCALAR_FIELD(stack_t, ss_flags, 0);
526
527 END;
528 }
529
530 /* sysset_t, <sys/syscall.h> */
531 static void
532 gen_sysset(void)
533 {
534 START(sysset, sysset_t);
535
536 ARRAY_FIELD(sysset_t, word, 0);
537
538 END;
539 }
540
541 /* timestruc_t, <sys/time_impl.h> */
542 static void
543 gen_timestruc(void)
544 {
545 START(timestruc, timestruc_t);
546
547 SCALAR_FIELD(timestruc_t, tv_sec, 0);
548 SCALAR_FIELD(timestruc_t, tv_nsec, 0);
549
550 END;
551 }
552
553 /* struct utsname, <sys/utsname.h> */
554 static void
555 gen_utsname(void)
556 {
557 START(utsname, struct utsname);
558
559 ARRAY_FIELD(struct utsname, sysname, 0);
560 ARRAY_FIELD(struct utsname, nodename, 0);
561 ARRAY_FIELD(struct utsname, release, 0);
562 ARRAY_FIELD(struct utsname, version, 0);
563 ARRAY_FIELD(struct utsname, machine, 0);
564
565 END;
566 }
567
568 static void
569 gen_prfdinfo(void)
570 {
571 START(prfdinfo, prfdinfo_t);
572
573 SCALAR_FIELD(prfdinfo_t, pr_fd, 0);
574 SCALAR_FIELD(prfdinfo_t, pr_mode, 0);
575 SCALAR_FIELD(prfdinfo_t, pr_uid, 0);
576 SCALAR_FIELD(prfdinfo_t, pr_gid, 0);
577 SCALAR_FIELD(prfdinfo_t, pr_major, 0);
578 SCALAR_FIELD(prfdinfo_t, pr_minor, 0);
579 SCALAR_FIELD(prfdinfo_t, pr_rmajor, 0);
580 SCALAR_FIELD(prfdinfo_t, pr_rminor, 0);
581 SCALAR_FIELD(prfdinfo_t, pr_ino, 0);
582 SCALAR_FIELD(prfdinfo_t, pr_offset, 0);
583 SCALAR_FIELD(prfdinfo_t, pr_size, 0);
584 SCALAR_FIELD(prfdinfo_t, pr_fileflags, 0);
585 SCALAR_FIELD(prfdinfo_t, pr_fdflags, 0);
586 ARRAY_FIELD(prfdinfo_t, pr_path, 0);
587
588 END;
589 }
590
591 static void
592 gen_prsecflags(void)
593 {
594 START(prsecflags, prsecflags_t);
595 SCALAR_FIELD(prsecflags_t, pr_version, 0);
596 SCALAR_FIELD(prsecflags_t, pr_effective, 0);
597 SCALAR_FIELD(prsecflags_t, pr_inherit, 0);
598 SCALAR_FIELD(prsecflags_t, pr_lower, 0);
599 SCALAR_FIELD(prsecflags_t, pr_upper, 0);
600 END;
601 }
602
603 static void
604 gen_prlwpname(void)
605 {
606 START(prlwpname, prlwpname_t);
607 SCALAR_FIELD(prlwpname_t, pr_lwpid, 0);
608 ARRAY_FIELD(prlwpname_t, pr_lwpname, 0);
609 END;
610 }
611
612 /*ARGSUSED*/
613 int
614 main(int argc, char *argv[])
615 {
616 const char *fmt = "\t&%s_layout,\n";
617
618 /* get obj file for input */
619 if (argc < 3) {
620 (void) fprintf(stderr,
621 "usage: %s {object_file} {MACH}\n", argv[0]);
622 exit(1);
623 }
624
625 objfile = argv[1];
626 machname = argv[2];
627
628 get_ctf_file(objfile);
629
630 (void) printf("#include <struct_layout.h>\n");
631
632 gen_auxv();
633 gen_prgregset();
634 gen_lwpstatus();
635 gen_pstatus();
636 gen_prstatus();
637 gen_psinfo();
638 gen_prpsinfo();
639 gen_lwpsinfo();
640 gen_prcred();
641 gen_prpriv();
642 gen_priv_impl_info();
643 gen_fltset();
644 gen_siginfo();
645 gen_sigset();
646 gen_sigaction();
647 gen_stack();
648 gen_sysset();
649 gen_timestruc();
650 gen_utsname();
651 gen_prfdinfo();
652 gen_prsecflags();
653 gen_prlwpname();
654
655 /*
656 * Generate the full arch_layout description
657 */
658 (void) printf(
659 "\n\n\n\nstatic const sl_arch_layout_t layout_%s = {\n",
660 machname);
661 (void) printf(fmt, "auxv");
662 (void) printf(fmt, "fltset");
663 (void) printf(fmt, "lwpsinfo");
664 (void) printf(fmt, "lwpstatus");
665 (void) printf(fmt, "prcred");
666 (void) printf(fmt, "priv_impl_info");
667 (void) printf(fmt, "prpriv");
668 (void) printf(fmt, "psinfo");
669 (void) printf(fmt, "pstatus");
670 (void) printf(fmt, "prgregset");
671 (void) printf(fmt, "prpsinfo");
672 (void) printf(fmt, "prstatus");
673 (void) printf(fmt, "sigaction");
674 (void) printf(fmt, "siginfo");
675 (void) printf(fmt, "sigset");
676 (void) printf(fmt, "stack");
677 (void) printf(fmt, "sysset");
678 (void) printf(fmt, "timestruc");
679 (void) printf(fmt, "utsname");
680 (void) printf(fmt, "prfdinfo");
681 (void) printf(fmt, "prsecflags");
682 (void) printf(fmt, "prlwpname");
683 (void) printf("};\n");
684
685 /*
686 * A public function, to make the information available
687 */
688 (void) printf("\n\nconst sl_arch_layout_t *\n");
689 (void) printf("struct_layout_%s(void)\n", machname);
690 (void) printf("{\n\treturn (&layout_%s);\n}\n", machname);
691
692 return (0);
693 }
694
695 /*
696 * Helper functions using the CTF library to get type info.
697 */
698
699 static void
700 get_ctf_file(char *fname)
701 {
702 int ctferr;
703
704 objfile = fname;
705 if ((ctf = ctf_open(objfile, &ctferr)) == NULL) {
706 errx(1, "Couldn't open object file %s: %s\n", objfile,
707 ctf_errmsg(ctferr));
708 }
709 }
710
711 static void
712 print_row(int boff, int eltlen, int nelts, int issigned, char *comment)
713 {
714 (void) printf("\t{ %d,\t%d,\t%d,\t%d },\t\t/* %s */\n",
715 boff, eltlen, nelts, issigned, comment);
716 }
717
718 static void
719 do_start(char *sname, char *tname)
720 {
721 do_start_name(sname);
722 do_start_sizeof(tname, NULL);
723 }
724
725 static void
726 do_start_name(char *sname)
727 {
728 (void) printf("\n\nstatic const sl_%s_layout_t %s_layout = {\n",
729 sname, sname);
730 }
731
732 static void
733 do_end(void)
734 {
735 (void) printf("};\n");
736 }
737
738 static void
739 do_start_sizeof(char *tname, char *rtname)
740 {
741 char comment[100];
742 ctf_id_t stype;
743 int sz;
744
745 if (rtname == NULL)
746 rtname = tname;
747
748 if ((stype = ctf_lookup_by_name(ctf, rtname)) == CTF_ERR)
749 errx(1, "Couldn't find type %s", rtname);
750 if ((stype = ctf_type_resolve(ctf, stype)) == CTF_ERR)
751 errx(1, "Couldn't resolve type %s", tname);
752
753 if ((sz = (int)ctf_type_size(ctf, stype)) < 0) {
754 errx(1, "Couldn't get size for type %s", tname);
755 } else if (sz == 0) {
756 errx(1, "Invalid type size 0 for %s", tname);
757 }
758
759 (void) snprintf(comment, sizeof (comment), "sizeof (%s)", tname);
760 print_row(0, sz, 0, 0, comment);
761 }
762
763 static void
764 do_scalar_field(char *tname, char *fname, int _sign, char *dotfield)
765 {
766 int rc, off, sz, ftype;
767
768 rc = get_field_info(tname, fname, dotfield, &off, &ftype);
769 if (rc < 0)
770 errx(1, "Can't get field info for %s->%s", tname, fname);
771
772 if ((ftype = ctf_type_resolve(ctf, ftype)) == CTF_ERR)
773 errx(1, "Couldn't resolve type of %s->%s", tname, fname);
774
775 if ((sz = (int)ctf_type_size(ctf, ftype)) < 0) {
776 errx(1, "Couldn't get size for type ID %d", ftype);
777 } else if (sz == 0) {
778 errx(1, "Invalid type size 0 for type ID %d", ftype);
779 }
780
781 print_row(off, sz, 0, _sign, fname);
782 }
783
784 static void
785 do_array_field(char *tname, char *fname,
786 int _sign, char *dotfield)
787 {
788 char comment[100];
789 ctf_arinfo_t ai;
790 int typekind;
791 int esz, rc, off, ftype;
792
793 rc = get_field_info(tname, fname, dotfield, &off, &ftype);
794 if (rc < 0)
795 errx(1, "Can't get field info for %s->%s", tname, fname);
796
797 if ((ftype = ctf_type_resolve(ctf, ftype)) == CTF_ERR)
798 errx(1, "Couldn't resolve type of %s->%s", tname, fname);
799
800 typekind = ctf_type_kind(ctf, ftype);
801 if (typekind != CTF_K_ARRAY)
802 errx(1, "Wrong type for %s->%s", tname, fname);
803
804 rc = ctf_array_info(ctf, ftype, &ai);
805 if (rc != 0)
806 errx(1, "Can't get array info for %s->%s\n", tname, fname);
807 esz = ctf_type_size(ctf, ai.ctr_contents);
808 if (esz < 0)
809 errx(1, "Can't get element size for %s->%s\n", tname, fname);
810
811 (void) snprintf(comment, sizeof (comment), "%s[]", fname);
812 print_row(off, esz, ai.ctr_nelems, _sign, comment);
813 }
814
815 static void
816 do_array_type(char *tname, char *fname, int _sign)
817 {
818 ctf_arinfo_t ai;
819 int stype, typekind;
820 int esz, rc;
821
822 if ((stype = ctf_lookup_by_name(ctf, tname)) == CTF_ERR)
823 errx(1, "Couldn't find type %s", tname);
824 if ((stype = ctf_type_resolve(ctf, stype)) == CTF_ERR)
825 errx(1, "Couldn't resolve type %s", tname);
826
827 typekind = ctf_type_kind(ctf, stype);
828 if (typekind != CTF_K_ARRAY)
829 errx(1, "Wrong type for %s->%s", tname, fname);
830
831 rc = ctf_array_info(ctf, stype, &ai);
832 if (rc != 0)
833 errx(1, "Can't get array info for %s->%s\n", tname, fname);
834 esz = ctf_type_size(ctf, ai.ctr_contents);
835 if (esz < 0)
836 errx(1, "Can't get element size for %s->%s\n", tname, fname);
837
838 print_row(0, esz, ai.ctr_nelems, _sign, fname);
839 }
840
841
842 struct gfinfo {
843 char *tname; /* top type name, i.e. the struct */
844 char *fname; /* field name */
845 char *dotname; /* full field name with dots (optional) */
846 char *prefix; /* current field search prefix */
847 int base_off;
848 int fld_off;
849 int fld_type;
850 };
851
852 static int gfi_iter(const char *fname, ctf_id_t mbrtid,
853 ulong_t off, void *varg);
854
855 /*
856 * Lookup field "fname" in type "tname". If "dotname" is non-NULL,
857 * that's the full field name with dots, i.e. a_un.un_foo, which
858 * we must search for by walking the struct CTF recursively.
859 */
860 static int
861 get_field_info(char *tname, char *fname, char *dotname,
862 int *offp, int *tidp)
863 {
864 struct gfinfo gfi;
865 ctf_id_t stype;
866 int typekind;
867 int rc;
868
869 if ((stype = ctf_lookup_by_name(ctf, tname)) == CTF_ERR)
870 errx(1, "Couldn't find type %s", tname);
871 if ((stype = ctf_type_resolve(ctf, stype)) == CTF_ERR)
872 errx(1, "Couldn't resolve type %s", tname);
873
874 /* If fname has a dot, use it as dotname too. */
875 if (dotname == NULL && strchr(fname, '.') != NULL)
876 dotname = fname;
877
878 gfi.tname = tname;
879 gfi.fname = fname;
880 gfi.dotname = dotname;
881 gfi.prefix = "";
882 gfi.base_off = 0;
883 gfi.fld_off = 0;
884 gfi.fld_type = 0;
885
886 typekind = ctf_type_kind(ctf, stype);
887 switch (typekind) {
888
889 case CTF_K_STRUCT:
890 case CTF_K_UNION:
891 rc = ctf_member_iter(ctf, stype, gfi_iter, &gfi);
892 break;
893
894 default:
895 errx(1, "Unexpected top-level type for %s", tname);
896 break;
897 }
898
899 if (rc < 0)
900 errx(1, "Error getting info for %s.%s", stype, fname);
901 if (rc == 0)
902 errx(1, "Did not find %s.%s", tname, fname);
903
904 *offp = gfi.fld_off;
905 *tidp = gfi.fld_type;
906
907 return (0);
908 }
909
910 /*
911 * Iteration callback for ctf_member_iter
912 * Return <0 on error, 0 to keep looking, >0 for found.
913 *
914 * If no dotname, simple search for fieldname.
915 * If we're asked to search with dotname, we need to do a full
916 * recursive walk of the types under the dotname.
917 */
918 int
919 gfi_iter(const char *fieldname, ctf_id_t mbrtid, ulong_t off, void *varg)
920 {
921 char namebuf[100];
922 struct gfinfo *gfi = varg;
923 char *saveprefix;
924 int saveoff;
925 int typekind;
926 int byteoff;
927 int len, rc;
928
929 byteoff = gfi->base_off + (int)(off >> 3);
930
931 /* Easy cases first: no dotname */
932 if (gfi->dotname == NULL) {
933 if (strcmp(gfi->fname, fieldname) == 0) {
934 gfi->fld_off = byteoff;
935 gfi->fld_type = mbrtid;
936 return (1);
937 }
938 return (0);
939 }
940
941 /* Exact match on the dotname? */
942 (void) snprintf(namebuf, sizeof (namebuf), "%s%s",
943 gfi->prefix, fieldname);
944 if (strcmp(gfi->dotname, namebuf) == 0) {
945 gfi->fld_off = byteoff;
946 gfi->fld_type = mbrtid;
947 return (1);
948 }
949
950 /*
951 * May need to recurse under this field, but
952 * only if there's a match through '.'
953 */
954 (void) strlcat(namebuf, ".", sizeof (namebuf));
955 len = strlen(namebuf);
956 if (strncmp(gfi->dotname, namebuf, len) != 0)
957 return (0);
958
959 typekind = ctf_type_kind(ctf, mbrtid);
960 switch (typekind) {
961 case CTF_K_STRUCT:
962 case CTF_K_UNION:
963 break;
964 default:
965 return (0);
966 }
967
968 /* Recursively walk members */
969 saveprefix = gfi->prefix;
970 saveoff = gfi->base_off;
971 gfi->prefix = namebuf;
972 gfi->base_off = byteoff;
973 rc = ctf_member_iter(ctf, mbrtid, gfi_iter, gfi);
974 gfi->prefix = saveprefix;
975 gfi->base_off = saveoff;
976
977 return (rc);
978 }