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 } 979