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 * Copyright 2020 OmniOS Community Edition (OmniOSce) Association. 29 */ 30 31 /* 32 * This program is used to generate the contents of the 33 * struct_layout_XXX.c files that contain per-architecture 34 * structure layout information. 35 * 36 * Although not part of elfdump, it is built by the makefile 37 * along with it. 38 * To use it: 39 * 40 * 1) Run it, capturing the output in a file. 41 * 2) If this is a replacement for an existing file, 42 * diff the new and old copies to ensure only 43 * the changes you expected are present. 44 * 3) Put the new file in the common directory under the name 45 * struct_layout_XXX.c, where XXX is the name of 46 * the architecture (i386, amd64, sparc, sparcv9, etc). 47 * 2) Add any necessary header and copyright comments. 48 * 3) If this is a new architecture: 49 * - Add an extern statement for struct_layout_XXX() 50 * to struct_layout.h 51 * - Add a case for it to the function sl_struct_layout() 52 * in struct_layout.c. 53 */ 54 55 #include <string.h> 56 #include <stdio.h> 57 #include <stdlib.h> 58 #include <ctype.h> 59 #include <err.h> 60 #include <sys/types.h> 61 #include <libctf.h> 62 63 /* 64 * This extracts CTF information from a temporary object file. 65 * 66 * START and END bracket a struct layout definition. They issue 67 * the typedef boilerplate, and the standard first element (sizeof) 68 * which captures the overall size of the structure. 69 * 70 * SCALAR_FIELD is for scalar struct fields 71 * 72 * ARRAY_FIELD is for array struct fields 73 * 74 * ARRAY_TYPE is for plain (non-struct) array types 75 */ 76 #define START(_name, _type) \ 77 do_start(#_name, #_type) 78 #define END (void) \ 79 do_end() 80 #define SCALAR_FIELD(_type, _field, _sign) \ 81 do_scalar_field(#_type, #_field, _sign, NULL) 82 #define SCALAR_FIELD4(_type, _field, _sign, _rtype) \ 83 do_scalar_field(#_type, #_field, _sign, _rtype) 84 #define ARRAY_FIELD(_type, _field, _sign) \ 85 do_array_field(#_type, #_field, _sign, NULL) 86 #define ARRAY_TYPE(_type, _sign) \ 87 do_array_type(#_type, "elt0", _sign) 88 89 static void do_start(char *_name, char *_type); 90 static void do_end(void); 91 static void do_start_name(char *name); 92 static void do_start_sizeof(char *_type, char *realtype); 93 static void do_scalar_field(char *_type, char *_field, 94 int _sign, char *dotfield); 95 static void do_array_field(char *_type, char *_field, 96 int _sign, char *dotfield); 97 static void do_array_type(char *_type, char *_field, int _sign); 98 99 static void get_ctf_file(char *fname); 100 static int get_field_info(char *tname, char *fname, char *dotname, 101 int *offp, int *sizep); 102 103 static ctf_file_t *ctf; 104 static char *objfile; 105 static char *machname; 106 107 /* auxv_t, <sys/auxv.h> */ 108 static void 109 gen_auxv(void) 110 { 111 START(auxv, auxv_t); 112 113 SCALAR_FIELD(auxv_t, a_type, 1); 114 SCALAR_FIELD(auxv_t, a_un.a_val, 1); 115 SCALAR_FIELD(auxv_t, a_un.a_ptr, 0); 116 SCALAR_FIELD(auxv_t, a_un.a_fcn, 0); 117 118 END; 119 } 120 121 122 /* prgregset_t, <sys/prgregset.h> */ 123 static void 124 gen_prgregset(void) 125 { 126 START(prgregset, prgregset_t); 127 128 ARRAY_TYPE(prgregset_t, 0); 129 130 END; 131 } 132 133 134 /* lwpstatus_t, <sys/procfs.h> */ 135 static void 136 gen_lwpstatus(void) 137 { 138 START(lwpstatus, lwpstatus_t); 139 140 SCALAR_FIELD(lwpstatus_t, pr_flags, 0); 141 SCALAR_FIELD(lwpstatus_t, pr_lwpid, 0); 142 SCALAR_FIELD(lwpstatus_t, pr_why, 0); 143 SCALAR_FIELD(lwpstatus_t, pr_what, 0); 144 SCALAR_FIELD(lwpstatus_t, pr_cursig, 0); 145 SCALAR_FIELD(lwpstatus_t, pr_info, 0); 146 SCALAR_FIELD(lwpstatus_t, pr_lwppend, 0); 147 SCALAR_FIELD(lwpstatus_t, pr_lwphold, 0); 148 SCALAR_FIELD(lwpstatus_t, pr_action, 0); 149 SCALAR_FIELD(lwpstatus_t, pr_altstack, 0); 150 SCALAR_FIELD(lwpstatus_t, pr_oldcontext, 0); 151 SCALAR_FIELD(lwpstatus_t, pr_syscall, 0); 152 SCALAR_FIELD(lwpstatus_t, pr_nsysarg, 0); 153 SCALAR_FIELD(lwpstatus_t, pr_errno, 0); 154 ARRAY_FIELD(lwpstatus_t, pr_sysarg, 0); 155 SCALAR_FIELD(lwpstatus_t, pr_rval1, 0); 156 SCALAR_FIELD(lwpstatus_t, pr_rval2, 0); 157 ARRAY_FIELD(lwpstatus_t, pr_clname, 0); 158 SCALAR_FIELD(lwpstatus_t, pr_tstamp, 0); 159 SCALAR_FIELD(lwpstatus_t, pr_utime, 0); 160 SCALAR_FIELD(lwpstatus_t, pr_stime, 0); 161 SCALAR_FIELD(lwpstatus_t, pr_errpriv, 0); 162 SCALAR_FIELD(lwpstatus_t, pr_ustack, 0); 163 SCALAR_FIELD(lwpstatus_t, pr_instr, 0); 164 SCALAR_FIELD(lwpstatus_t, pr_reg, 0); 165 SCALAR_FIELD(lwpstatus_t, pr_fpreg, 0); 166 167 END; 168 } 169 170 171 /* pstatus_t, <sys/procfs.h> */ 172 static void 173 gen_pstatus(void) 174 { 175 START(pstatus, pstatus_t); 176 177 SCALAR_FIELD(pstatus_t, pr_flags, 1); 178 SCALAR_FIELD(pstatus_t, pr_nlwp, 1); 179 SCALAR_FIELD(pstatus_t, pr_pid, 0); 180 SCALAR_FIELD(pstatus_t, pr_ppid, 0); 181 SCALAR_FIELD(pstatus_t, pr_pgid, 0); 182 SCALAR_FIELD(pstatus_t, pr_sid, 0); 183 SCALAR_FIELD(pstatus_t, pr_aslwpid, 1); 184 SCALAR_FIELD(pstatus_t, pr_agentid, 1); 185 SCALAR_FIELD(pstatus_t, pr_sigpend, 0); 186 SCALAR_FIELD(pstatus_t, pr_brkbase, 0); 187 SCALAR_FIELD(pstatus_t, pr_brksize, 0); 188 SCALAR_FIELD(pstatus_t, pr_stkbase, 0); 189 SCALAR_FIELD(pstatus_t, pr_stksize, 0); 190 SCALAR_FIELD(pstatus_t, pr_utime, 0); 191 SCALAR_FIELD(pstatus_t, pr_stime, 0); 192 SCALAR_FIELD(pstatus_t, pr_cutime, 0); 193 SCALAR_FIELD(pstatus_t, pr_cstime, 0); 194 SCALAR_FIELD(pstatus_t, pr_sigtrace, 0); 195 SCALAR_FIELD(pstatus_t, pr_flttrace, 0); 196 SCALAR_FIELD(pstatus_t, pr_sysentry, 0); 197 SCALAR_FIELD(pstatus_t, pr_sysexit, 0); 198 SCALAR_FIELD(pstatus_t, pr_dmodel, 0); 199 SCALAR_FIELD(pstatus_t, pr_taskid, 1); 200 SCALAR_FIELD(pstatus_t, pr_projid, 1); 201 SCALAR_FIELD(pstatus_t, pr_nzomb, 1); 202 SCALAR_FIELD(pstatus_t, pr_zoneid, 1); 203 SCALAR_FIELD(pstatus_t, pr_lwp, 0); 204 205 END; 206 } 207 208 209 /* prstatus_t, <sys/old_procfs.h> */ 210 static void 211 gen_prstatus(void) 212 { 213 START(prstatus, prstatus_t); 214 215 SCALAR_FIELD(prstatus_t, pr_flags, 1); 216 SCALAR_FIELD(prstatus_t, pr_why, 1); 217 SCALAR_FIELD(prstatus_t, pr_what, 1); 218 SCALAR_FIELD(prstatus_t, pr_info, 0); 219 SCALAR_FIELD(prstatus_t, pr_cursig, 1); 220 SCALAR_FIELD(prstatus_t, pr_nlwp, 0); 221 SCALAR_FIELD(prstatus_t, pr_sigpend, 0); 222 SCALAR_FIELD(prstatus_t, pr_sighold, 0); 223 SCALAR_FIELD(prstatus_t, pr_altstack, 0); 224 SCALAR_FIELD(prstatus_t, pr_action, 0); 225 SCALAR_FIELD(prstatus_t, pr_pid, 0); 226 SCALAR_FIELD(prstatus_t, pr_ppid, 0); 227 SCALAR_FIELD(prstatus_t, pr_pgrp, 0); 228 SCALAR_FIELD(prstatus_t, pr_sid, 0); 229 SCALAR_FIELD(prstatus_t, pr_utime, 0); 230 SCALAR_FIELD(prstatus_t, pr_stime, 0); 231 SCALAR_FIELD(prstatus_t, pr_cutime, 0); 232 SCALAR_FIELD(prstatus_t, pr_cstime, 0); 233 ARRAY_FIELD(prstatus_t, pr_clname, 0); 234 SCALAR_FIELD(prstatus_t, pr_syscall, 1); 235 SCALAR_FIELD(prstatus_t, pr_nsysarg, 1); 236 ARRAY_FIELD(prstatus_t, pr_sysarg, 1); 237 SCALAR_FIELD(prstatus_t, pr_who, 0); 238 SCALAR_FIELD(prstatus_t, pr_lwppend, 0); 239 SCALAR_FIELD(prstatus_t, pr_oldcontext, 0); 240 SCALAR_FIELD(prstatus_t, pr_brkbase, 0); 241 SCALAR_FIELD(prstatus_t, pr_brksize, 0); 242 SCALAR_FIELD(prstatus_t, pr_stkbase, 0); 243 SCALAR_FIELD(prstatus_t, pr_stksize, 0); 244 SCALAR_FIELD(prstatus_t, pr_processor, 1); 245 SCALAR_FIELD(prstatus_t, pr_bind, 1); 246 SCALAR_FIELD(prstatus_t, pr_instr, 1); 247 SCALAR_FIELD(prstatus_t, pr_reg, 0); 248 249 END; 250 } 251 252 253 /* psinfo_t, <sys/procfs.h> */ 254 static void 255 gen_psinfo(void) 256 { 257 START(psinfo, psinfo_t); 258 259 SCALAR_FIELD(psinfo_t, pr_flag, 1); 260 SCALAR_FIELD(psinfo_t, pr_nlwp, 1); 261 SCALAR_FIELD(psinfo_t, pr_pid, 0); 262 SCALAR_FIELD(psinfo_t, pr_ppid, 0); 263 SCALAR_FIELD(psinfo_t, pr_pgid, 0); 264 SCALAR_FIELD(psinfo_t, pr_sid, 0); 265 SCALAR_FIELD(psinfo_t, pr_uid, 0); 266 SCALAR_FIELD(psinfo_t, pr_euid, 0); 267 SCALAR_FIELD(psinfo_t, pr_gid, 0); 268 SCALAR_FIELD(psinfo_t, pr_egid, 0); 269 SCALAR_FIELD(psinfo_t, pr_addr, 0); 270 SCALAR_FIELD(psinfo_t, pr_size, 0); 271 SCALAR_FIELD(psinfo_t, pr_rssize, 0); 272 SCALAR_FIELD(psinfo_t, pr_ttydev, 0); 273 SCALAR_FIELD(psinfo_t, pr_pctcpu, 0); 274 SCALAR_FIELD(psinfo_t, pr_pctmem, 0); 275 SCALAR_FIELD(psinfo_t, pr_start, 0); 276 SCALAR_FIELD(psinfo_t, pr_time, 0); 277 SCALAR_FIELD(psinfo_t, pr_ctime, 0); 278 ARRAY_FIELD(psinfo_t, pr_fname, 0); 279 ARRAY_FIELD(psinfo_t, pr_psargs, 0); 280 SCALAR_FIELD(psinfo_t, pr_wstat, 1); 281 SCALAR_FIELD(psinfo_t, pr_argc, 1); 282 SCALAR_FIELD(psinfo_t, pr_argv, 0); 283 SCALAR_FIELD(psinfo_t, pr_envp, 0); 284 SCALAR_FIELD(psinfo_t, pr_dmodel, 0); 285 SCALAR_FIELD(psinfo_t, pr_taskid, 0); 286 SCALAR_FIELD(psinfo_t, pr_projid, 0); 287 SCALAR_FIELD(psinfo_t, pr_nzomb, 1); 288 SCALAR_FIELD(psinfo_t, pr_poolid, 0); 289 SCALAR_FIELD(psinfo_t, pr_zoneid, 0); 290 SCALAR_FIELD(psinfo_t, pr_contract, 0); 291 SCALAR_FIELD(psinfo_t, pr_lwp, 0); 292 293 END; 294 } 295 296 /* prpsinfo_t, <sys/old_procfs.h> */ 297 static void 298 gen_prpsinfo(void) 299 { 300 START(prpsinfo, prpsinfo_t); 301 302 SCALAR_FIELD(prpsinfo_t, pr_state, 0); 303 SCALAR_FIELD(prpsinfo_t, pr_sname, 0); 304 SCALAR_FIELD(prpsinfo_t, pr_zomb, 0); 305 SCALAR_FIELD(prpsinfo_t, pr_nice, 0); 306 SCALAR_FIELD(prpsinfo_t, pr_flag, 0); 307 SCALAR_FIELD(prpsinfo_t, pr_uid, 0); 308 SCALAR_FIELD(prpsinfo_t, pr_gid, 0); 309 SCALAR_FIELD(prpsinfo_t, pr_pid, 0); 310 SCALAR_FIELD(prpsinfo_t, pr_ppid, 0); 311 SCALAR_FIELD(prpsinfo_t, pr_pgrp, 0); 312 SCALAR_FIELD(prpsinfo_t, pr_sid, 0); 313 SCALAR_FIELD(prpsinfo_t, pr_addr, 0); 314 SCALAR_FIELD(prpsinfo_t, pr_size, 0); 315 SCALAR_FIELD(prpsinfo_t, pr_rssize, 0); 316 SCALAR_FIELD(prpsinfo_t, pr_wchan, 0); 317 SCALAR_FIELD(prpsinfo_t, pr_start, 0); 318 SCALAR_FIELD(prpsinfo_t, pr_time, 0); 319 SCALAR_FIELD(prpsinfo_t, pr_pri, 1); 320 SCALAR_FIELD(prpsinfo_t, pr_oldpri, 0); 321 SCALAR_FIELD(prpsinfo_t, pr_cpu, 0); 322 SCALAR_FIELD(prpsinfo_t, pr_ottydev, 0); 323 SCALAR_FIELD(prpsinfo_t, pr_lttydev, 0); 324 ARRAY_FIELD(prpsinfo_t, pr_clname, 0); 325 ARRAY_FIELD(prpsinfo_t, pr_fname, 0); 326 ARRAY_FIELD(prpsinfo_t, pr_psargs, 0); 327 SCALAR_FIELD(prpsinfo_t, pr_syscall, 1); 328 SCALAR_FIELD(prpsinfo_t, pr_ctime, 0); 329 SCALAR_FIELD(prpsinfo_t, pr_bysize, 0); 330 SCALAR_FIELD(prpsinfo_t, pr_byrssize, 0); 331 SCALAR_FIELD(prpsinfo_t, pr_argc, 1); 332 SCALAR_FIELD(prpsinfo_t, pr_argv, 0); 333 SCALAR_FIELD(prpsinfo_t, pr_envp, 0); 334 SCALAR_FIELD(prpsinfo_t, pr_wstat, 1); 335 SCALAR_FIELD(prpsinfo_t, pr_pctcpu, 0); 336 SCALAR_FIELD(prpsinfo_t, pr_pctmem, 0); 337 SCALAR_FIELD(prpsinfo_t, pr_euid, 0); 338 SCALAR_FIELD(prpsinfo_t, pr_egid, 0); 339 SCALAR_FIELD(prpsinfo_t, pr_aslwpid, 0); 340 SCALAR_FIELD(prpsinfo_t, pr_dmodel, 0); 341 342 END; 343 } 344 345 /* lwpsinfo_t, <sys/procfs.h> */ 346 static void 347 gen_lwpsinfo(void) 348 { 349 START(lwpsinfo, lwpsinfo_t); 350 351 SCALAR_FIELD(lwpsinfo_t, pr_flag, 1); 352 SCALAR_FIELD(lwpsinfo_t, pr_lwpid, 0); 353 SCALAR_FIELD(lwpsinfo_t, pr_addr, 0); 354 SCALAR_FIELD(lwpsinfo_t, pr_wchan, 0); 355 SCALAR_FIELD(lwpsinfo_t, pr_stype, 0); 356 SCALAR_FIELD(lwpsinfo_t, pr_state, 0); 357 SCALAR_FIELD(lwpsinfo_t, pr_sname, 0); 358 SCALAR_FIELD(lwpsinfo_t, pr_nice, 0); 359 SCALAR_FIELD(lwpsinfo_t, pr_syscall, 0); 360 SCALAR_FIELD(lwpsinfo_t, pr_oldpri, 0); 361 SCALAR_FIELD(lwpsinfo_t, pr_cpu, 0); 362 SCALAR_FIELD(lwpsinfo_t, pr_pri, 1); 363 SCALAR_FIELD(lwpsinfo_t, pr_pctcpu, 0); 364 SCALAR_FIELD(lwpsinfo_t, pr_start, 0); 365 SCALAR_FIELD(lwpsinfo_t, pr_time, 0); 366 ARRAY_FIELD(lwpsinfo_t, pr_clname, 0); 367 ARRAY_FIELD(lwpsinfo_t, pr_name, 0); 368 SCALAR_FIELD(lwpsinfo_t, pr_onpro, 1); 369 SCALAR_FIELD(lwpsinfo_t, pr_bindpro, 1); 370 SCALAR_FIELD(lwpsinfo_t, pr_bindpset, 1); 371 SCALAR_FIELD(lwpsinfo_t, pr_lgrp, 1); 372 373 END; 374 } 375 376 /* prcred_t, <sys/procfs.h> */ 377 static void 378 gen_prcred(void) 379 { 380 START(prcred, prcred_t); 381 382 SCALAR_FIELD(prcred_t, pr_euid, 0); 383 SCALAR_FIELD(prcred_t, pr_ruid, 0); 384 SCALAR_FIELD(prcred_t, pr_suid, 0); 385 SCALAR_FIELD(prcred_t, pr_egid, 0); 386 SCALAR_FIELD(prcred_t, pr_rgid, 0); 387 SCALAR_FIELD(prcred_t, pr_sgid, 0); 388 SCALAR_FIELD(prcred_t, pr_ngroups, 1); 389 ARRAY_FIELD(prcred_t, pr_groups, 0); 390 391 END; 392 } 393 394 /* prpriv_t, <sys/procfs.h> */ 395 static void 396 gen_prpriv(void) 397 { 398 START(prpriv, prpriv_t); 399 400 SCALAR_FIELD(prpriv_t, pr_nsets, 0); 401 SCALAR_FIELD(prpriv_t, pr_setsize, 0); 402 SCALAR_FIELD(prpriv_t, pr_infosize, 0); 403 ARRAY_FIELD(prpriv_t, pr_sets, 0); 404 405 END; 406 } 407 408 409 /* priv_impl_info_t, <sys/priv.h> */ 410 static void 411 gen_priv_impl_info(void) 412 { 413 START(priv_impl_info, priv_impl_info_t); 414 415 SCALAR_FIELD(priv_impl_info_t, priv_headersize, 0); 416 SCALAR_FIELD(priv_impl_info_t, priv_flags, 0); 417 SCALAR_FIELD(priv_impl_info_t, priv_nsets, 0); 418 SCALAR_FIELD(priv_impl_info_t, priv_setsize, 0); 419 SCALAR_FIELD(priv_impl_info_t, priv_max, 0); 420 SCALAR_FIELD(priv_impl_info_t, priv_infosize, 0); 421 SCALAR_FIELD(priv_impl_info_t, priv_globalinfosize, 0); 422 423 END; 424 } 425 426 427 /* fltset_t, <sys/fault.h> */ 428 static void 429 gen_fltset(void) 430 { 431 START(fltset, fltset_t); 432 433 ARRAY_FIELD(fltset_t, word, 0); 434 435 END; 436 } 437 438 /* 439 * Layout description of siginfo_t, <sys/siginfo.h> 440 * 441 * Note: many siginfo_t members are #defines mapping to 442 * long dotted members of sub-structs or unions, and 443 * we need the full member spec (with dots) for those. 444 */ 445 static void 446 gen_siginfo(void) 447 { 448 START(siginfo, siginfo_t); 449 450 SCALAR_FIELD(siginfo_t, si_signo, 0); 451 SCALAR_FIELD(siginfo_t, si_errno, 0); 452 SCALAR_FIELD(siginfo_t, si_code, 1); 453 454 SCALAR_FIELD4(siginfo_t, si_value.sival_int, 0, 455 "__data.__proc.__pdata.__kill.__value.sival_int"); 456 457 SCALAR_FIELD4(siginfo_t, si_value.sival_ptr, 0, 458 "__data.__proc.__pdata.__kill.__value.sival_ptr"); 459 460 SCALAR_FIELD4(siginfo_t, si_pid, 0, 461 "__data.__proc.__pid"); 462 463 SCALAR_FIELD4(siginfo_t, si_uid, 0, 464 "__data.__proc.__pdata.__kill.__uid"); 465 466 SCALAR_FIELD4(siginfo_t, si_ctid, 0, 467 "__data.__proc.__ctid"); 468 469 SCALAR_FIELD4(siginfo_t, si_zoneid, 0, 470 "__data.__proc.__zoneid"); 471 472 SCALAR_FIELD4(siginfo_t, si_entity, 0, 473 "__data.__rctl.__entity"); 474 475 SCALAR_FIELD4(siginfo_t, si_addr, 0, 476 "__data.__fault.__addr"); 477 478 SCALAR_FIELD4(siginfo_t, si_status, 0, 479 "__data.__proc.__pdata.__cld.__status"); 480 481 SCALAR_FIELD4(siginfo_t, si_band, 0, 482 "__data.__file.__band"); 483 484 END; 485 } 486 487 /* sigset_t, <sys/signal.h> */ 488 static void 489 gen_sigset(void) 490 { 491 START(sigset, sigset_t); 492 493 ARRAY_FIELD(sigset_t, __sigbits, 0); 494 495 END; 496 } 497 498 499 /* struct sigaction, <sys/signal.h> */ 500 static void 501 gen_sigaction(void) 502 { 503 START(sigaction, struct sigaction); 504 505 SCALAR_FIELD(struct sigaction, sa_flags, 0); 506 507 SCALAR_FIELD4(struct sigaction, sa_handler, 0, 508 "_funcptr._handler"); 509 510 SCALAR_FIELD4(struct sigaction, sa_sigaction, 0, 511 "_funcptr._sigaction"); 512 513 SCALAR_FIELD(struct sigaction, sa_mask, 0); 514 515 END; 516 } 517 518 /* stack_t, <sys/signal.h> */ 519 static void 520 gen_stack(void) 521 { 522 START(stack, stack_t); 523 524 SCALAR_FIELD(stack_t, ss_sp, 0); 525 SCALAR_FIELD(stack_t, ss_size, 0); 526 SCALAR_FIELD(stack_t, ss_flags, 0); 527 528 END; 529 } 530 531 /* sysset_t, <sys/syscall.h> */ 532 static void 533 gen_sysset(void) 534 { 535 START(sysset, sysset_t); 536 537 ARRAY_FIELD(sysset_t, word, 0); 538 539 END; 540 } 541 542 /* timestruc_t, <sys/time_impl.h> */ 543 static void 544 gen_timestruc(void) 545 { 546 START(timestruc, timestruc_t); 547 548 SCALAR_FIELD(timestruc_t, tv_sec, 0); 549 SCALAR_FIELD(timestruc_t, tv_nsec, 0); 550 551 END; 552 } 553 554 /* struct utsname, <sys/utsname.h> */ 555 static void 556 gen_utsname(void) 557 { 558 START(utsname, struct utsname); 559 560 ARRAY_FIELD(struct utsname, sysname, 0); 561 ARRAY_FIELD(struct utsname, nodename, 0); 562 ARRAY_FIELD(struct utsname, release, 0); 563 ARRAY_FIELD(struct utsname, version, 0); 564 ARRAY_FIELD(struct utsname, machine, 0); 565 566 END; 567 } 568 569 static void 570 gen_prfdinfo(void) 571 { 572 START(prfdinfo, prfdinfo_core_t); 573 574 SCALAR_FIELD(prfdinfo_core_t, pr_fd, 0); 575 SCALAR_FIELD(prfdinfo_core_t, pr_mode, 0); 576 SCALAR_FIELD(prfdinfo_core_t, pr_uid, 0); 577 SCALAR_FIELD(prfdinfo_core_t, pr_gid, 0); 578 SCALAR_FIELD(prfdinfo_core_t, pr_major, 0); 579 SCALAR_FIELD(prfdinfo_core_t, pr_minor, 0); 580 SCALAR_FIELD(prfdinfo_core_t, pr_rmajor, 0); 581 SCALAR_FIELD(prfdinfo_core_t, pr_rminor, 0); 582 SCALAR_FIELD(prfdinfo_core_t, pr_ino, 0); 583 SCALAR_FIELD(prfdinfo_core_t, pr_offset, 0); 584 SCALAR_FIELD(prfdinfo_core_t, pr_size, 0); 585 SCALAR_FIELD(prfdinfo_core_t, pr_fileflags, 0); 586 SCALAR_FIELD(prfdinfo_core_t, pr_fdflags, 0); 587 ARRAY_FIELD(prfdinfo_core_t, pr_path, 0); 588 589 END; 590 } 591 592 static void 593 gen_prsecflags(void) 594 { 595 START(prsecflags, prsecflags_t); 596 SCALAR_FIELD(prsecflags_t, pr_version, 0); 597 SCALAR_FIELD(prsecflags_t, pr_effective, 0); 598 SCALAR_FIELD(prsecflags_t, pr_inherit, 0); 599 SCALAR_FIELD(prsecflags_t, pr_lower, 0); 600 SCALAR_FIELD(prsecflags_t, pr_upper, 0); 601 END; 602 } 603 604 static void 605 gen_prlwpname(void) 606 { 607 START(prlwpname, prlwpname_t); 608 SCALAR_FIELD(prlwpname_t, pr_lwpid, 0); 609 ARRAY_FIELD(prlwpname_t, pr_lwpname, 0); 610 END; 611 } 612 613 static void 614 gen_prupanic(void) 615 { 616 START(prupanic, prupanic_t); 617 SCALAR_FIELD(prupanic_t, pru_version, 0); 618 SCALAR_FIELD(prupanic_t, pru_flags, 0); 619 ARRAY_FIELD(prupanic_t, pru_data, 0); 620 END; 621 } 622 623 /*ARGSUSED*/ 624 int 625 main(int argc, char *argv[]) 626 { 627 const char *fmt = "\t&%s_layout,\n"; 628 629 /* get obj file for input */ 630 if (argc < 3) { 631 (void) fprintf(stderr, 632 "usage: %s {object_file} {MACH}\n", argv[0]); 633 exit(1); 634 } 635 636 objfile = argv[1]; 637 machname = argv[2]; 638 639 get_ctf_file(objfile); 640 641 (void) printf("#include <struct_layout.h>\n"); 642 643 gen_auxv(); 644 gen_prgregset(); 645 gen_lwpstatus(); 646 gen_pstatus(); 647 gen_prstatus(); 648 gen_psinfo(); 649 gen_prpsinfo(); 650 gen_lwpsinfo(); 651 gen_prcred(); 652 gen_prpriv(); 653 gen_priv_impl_info(); 654 gen_fltset(); 655 gen_siginfo(); 656 gen_sigset(); 657 gen_sigaction(); 658 gen_stack(); 659 gen_sysset(); 660 gen_timestruc(); 661 gen_utsname(); 662 gen_prfdinfo(); 663 gen_prsecflags(); 664 gen_prlwpname(); 665 gen_prupanic(); 666 667 /* 668 * Generate the full arch_layout description 669 */ 670 (void) printf( 671 "\n\n\n\nstatic const sl_arch_layout_t layout_%s = {\n", 672 machname); 673 (void) printf(fmt, "auxv"); 674 (void) printf(fmt, "fltset"); 675 (void) printf(fmt, "lwpsinfo"); 676 (void) printf(fmt, "lwpstatus"); 677 (void) printf(fmt, "prcred"); 678 (void) printf(fmt, "priv_impl_info"); 679 (void) printf(fmt, "prpriv"); 680 (void) printf(fmt, "psinfo"); 681 (void) printf(fmt, "pstatus"); 682 (void) printf(fmt, "prgregset"); 683 (void) printf(fmt, "prpsinfo"); 684 (void) printf(fmt, "prstatus"); 685 (void) printf(fmt, "sigaction"); 686 (void) printf(fmt, "siginfo"); 687 (void) printf(fmt, "sigset"); 688 (void) printf(fmt, "stack"); 689 (void) printf(fmt, "sysset"); 690 (void) printf(fmt, "timestruc"); 691 (void) printf(fmt, "utsname"); 692 (void) printf(fmt, "prfdinfo"); 693 (void) printf(fmt, "prsecflags"); 694 (void) printf(fmt, "prlwpname"); 695 (void) printf(fmt, "prupanic"); 696 (void) printf("};\n"); 697 698 /* 699 * A public function, to make the information available 700 */ 701 (void) printf("\n\nconst sl_arch_layout_t *\n"); 702 (void) printf("struct_layout_%s(void)\n", machname); 703 (void) printf("{\n\treturn (&layout_%s);\n}\n", machname); 704 705 return (0); 706 } 707 708 /* 709 * Helper functions using the CTF library to get type info. 710 */ 711 712 static void 713 get_ctf_file(char *fname) 714 { 715 int ctferr; 716 717 objfile = fname; 718 if ((ctf = ctf_open(objfile, &ctferr)) == NULL) { 719 errx(1, "Couldn't open object file %s: %s\n", objfile, 720 ctf_errmsg(ctferr)); 721 } 722 } 723 724 static void 725 print_row(int boff, int eltlen, int nelts, int issigned, char *comment) 726 { 727 (void) printf("\t{ %d,\t%d,\t%d,\t%d },\t\t/* %s */\n", 728 boff, eltlen, nelts, issigned, comment); 729 } 730 731 static void 732 do_start(char *sname, char *tname) 733 { 734 do_start_name(sname); 735 do_start_sizeof(tname, NULL); 736 } 737 738 static void 739 do_start_name(char *sname) 740 { 741 (void) printf("\n\nstatic const sl_%s_layout_t %s_layout = {\n", 742 sname, sname); 743 } 744 745 static void 746 do_end(void) 747 { 748 (void) printf("};\n"); 749 } 750 751 static void 752 do_start_sizeof(char *tname, char *rtname) 753 { 754 char comment[100]; 755 ctf_id_t stype; 756 int sz; 757 758 if (rtname == NULL) 759 rtname = tname; 760 761 if ((stype = ctf_lookup_by_name(ctf, rtname)) == CTF_ERR) 762 errx(1, "Couldn't find type %s", rtname); 763 if ((stype = ctf_type_resolve(ctf, stype)) == CTF_ERR) 764 errx(1, "Couldn't resolve type %s", tname); 765 766 if ((sz = (int)ctf_type_size(ctf, stype)) < 0) { 767 errx(1, "Couldn't get size for type %s", tname); 768 } else if (sz == 0) { 769 errx(1, "Invalid type size 0 for %s", tname); 770 } 771 772 (void) snprintf(comment, sizeof (comment), "sizeof (%s)", tname); 773 print_row(0, sz, 0, 0, comment); 774 } 775 776 static void 777 do_scalar_field(char *tname, char *fname, int _sign, char *dotfield) 778 { 779 int rc, off, sz, ftype; 780 781 rc = get_field_info(tname, fname, dotfield, &off, &ftype); 782 if (rc < 0) 783 errx(1, "Can't get field info for %s->%s", tname, fname); 784 785 if ((ftype = ctf_type_resolve(ctf, ftype)) == CTF_ERR) 786 errx(1, "Couldn't resolve type of %s->%s", tname, fname); 787 788 if ((sz = (int)ctf_type_size(ctf, ftype)) < 0) { 789 errx(1, "Couldn't get size for type ID %d", ftype); 790 } else if (sz == 0) { 791 errx(1, "Invalid type size 0 for type ID %d", ftype); 792 } 793 794 print_row(off, sz, 0, _sign, fname); 795 } 796 797 static void 798 do_array_field(char *tname, char *fname, 799 int _sign, char *dotfield) 800 { 801 char comment[100]; 802 ctf_arinfo_t ai; 803 int typekind; 804 int esz, rc, off, ftype; 805 806 rc = get_field_info(tname, fname, dotfield, &off, &ftype); 807 if (rc < 0) 808 errx(1, "Can't get field info for %s->%s", tname, fname); 809 810 if ((ftype = ctf_type_resolve(ctf, ftype)) == CTF_ERR) 811 errx(1, "Couldn't resolve type of %s->%s", tname, fname); 812 813 typekind = ctf_type_kind(ctf, ftype); 814 if (typekind != CTF_K_ARRAY) 815 errx(1, "Wrong type for %s->%s", tname, fname); 816 817 rc = ctf_array_info(ctf, ftype, &ai); 818 if (rc != 0) 819 errx(1, "Can't get array info for %s->%s\n", tname, fname); 820 esz = ctf_type_size(ctf, ai.ctr_contents); 821 if (esz < 0) 822 errx(1, "Can't get element size for %s->%s\n", tname, fname); 823 824 (void) snprintf(comment, sizeof (comment), "%s[]", fname); 825 print_row(off, esz, ai.ctr_nelems, _sign, comment); 826 } 827 828 static void 829 do_array_type(char *tname, char *fname, int _sign) 830 { 831 ctf_arinfo_t ai; 832 int stype, typekind; 833 int esz, rc; 834 835 if ((stype = ctf_lookup_by_name(ctf, tname)) == CTF_ERR) 836 errx(1, "Couldn't find type %s", tname); 837 if ((stype = ctf_type_resolve(ctf, stype)) == CTF_ERR) 838 errx(1, "Couldn't resolve type %s", tname); 839 840 typekind = ctf_type_kind(ctf, stype); 841 if (typekind != CTF_K_ARRAY) 842 errx(1, "Wrong type for %s->%s", tname, fname); 843 844 rc = ctf_array_info(ctf, stype, &ai); 845 if (rc != 0) 846 errx(1, "Can't get array info for %s->%s\n", tname, fname); 847 esz = ctf_type_size(ctf, ai.ctr_contents); 848 if (esz < 0) 849 errx(1, "Can't get element size for %s->%s\n", tname, fname); 850 851 print_row(0, esz, ai.ctr_nelems, _sign, fname); 852 } 853 854 855 struct gfinfo { 856 char *tname; /* top type name, i.e. the struct */ 857 char *fname; /* field name */ 858 char *dotname; /* full field name with dots (optional) */ 859 char *prefix; /* current field search prefix */ 860 int base_off; 861 int fld_off; 862 int fld_type; 863 }; 864 865 static int gfi_iter(const char *fname, ctf_id_t mbrtid, 866 ulong_t off, void *varg); 867 868 /* 869 * Lookup field "fname" in type "tname". If "dotname" is non-NULL, 870 * that's the full field name with dots, i.e. a_un.un_foo, which 871 * we must search for by walking the struct CTF recursively. 872 */ 873 static int 874 get_field_info(char *tname, char *fname, char *dotname, 875 int *offp, int *tidp) 876 { 877 struct gfinfo gfi; 878 ctf_id_t stype; 879 int typekind; 880 int rc; 881 882 if ((stype = ctf_lookup_by_name(ctf, tname)) == CTF_ERR) 883 errx(1, "Couldn't find type %s", tname); 884 if ((stype = ctf_type_resolve(ctf, stype)) == CTF_ERR) 885 errx(1, "Couldn't resolve type %s", tname); 886 887 /* If fname has a dot, use it as dotname too. */ 888 if (dotname == NULL && strchr(fname, '.') != NULL) 889 dotname = fname; 890 891 gfi.tname = tname; 892 gfi.fname = fname; 893 gfi.dotname = dotname; 894 gfi.prefix = ""; 895 gfi.base_off = 0; 896 gfi.fld_off = 0; 897 gfi.fld_type = 0; 898 899 typekind = ctf_type_kind(ctf, stype); 900 switch (typekind) { 901 902 case CTF_K_STRUCT: 903 case CTF_K_UNION: 904 rc = ctf_member_iter(ctf, stype, gfi_iter, &gfi); 905 break; 906 907 default: 908 errx(1, "Unexpected top-level type for %s", tname); 909 break; 910 } 911 912 if (rc < 0) 913 errx(1, "Error getting info for %s.%s", stype, fname); 914 if (rc == 0) 915 errx(1, "Did not find %s.%s", tname, fname); 916 917 *offp = gfi.fld_off; 918 *tidp = gfi.fld_type; 919 920 return (0); 921 } 922 923 /* 924 * Iteration callback for ctf_member_iter 925 * Return <0 on error, 0 to keep looking, >0 for found. 926 * 927 * If no dotname, simple search for fieldname. 928 * If we're asked to search with dotname, we need to do a full 929 * recursive walk of the types under the dotname. 930 */ 931 int 932 gfi_iter(const char *fieldname, ctf_id_t mbrtid, ulong_t off, void *varg) 933 { 934 char namebuf[100]; 935 struct gfinfo *gfi = varg; 936 char *saveprefix; 937 int saveoff; 938 int typekind; 939 int byteoff; 940 int len, rc; 941 942 byteoff = gfi->base_off + (int)(off >> 3); 943 944 /* Easy cases first: no dotname */ 945 if (gfi->dotname == NULL) { 946 if (strcmp(gfi->fname, fieldname) == 0) { 947 gfi->fld_off = byteoff; 948 gfi->fld_type = mbrtid; 949 return (1); 950 } 951 return (0); 952 } 953 954 /* Exact match on the dotname? */ 955 (void) snprintf(namebuf, sizeof (namebuf), "%s%s", 956 gfi->prefix, fieldname); 957 if (strcmp(gfi->dotname, namebuf) == 0) { 958 gfi->fld_off = byteoff; 959 gfi->fld_type = mbrtid; 960 return (1); 961 } 962 963 /* 964 * May need to recurse under this field, but 965 * only if there's a match through '.' 966 */ 967 (void) strlcat(namebuf, ".", sizeof (namebuf)); 968 len = strlen(namebuf); 969 if (strncmp(gfi->dotname, namebuf, len) != 0) 970 return (0); 971 972 typekind = ctf_type_kind(ctf, mbrtid); 973 switch (typekind) { 974 case CTF_K_STRUCT: 975 case CTF_K_UNION: 976 break; 977 default: 978 return (0); 979 } 980 981 /* Recursively walk members */ 982 saveprefix = gfi->prefix; 983 saveoff = gfi->base_off; 984 gfi->prefix = namebuf; 985 gfi->base_off = byteoff; 986 rc = ctf_member_iter(ctf, mbrtid, gfi_iter, gfi); 987 gfi->prefix = saveprefix; 988 gfi->base_off = saveoff; 989 990 return (rc); 991 } 992