Mercurial > illumos > illumos-gate
annotate usr/src/cmd/mdb/common/mdb/mdb_modapi.c @ 4798:8e0fa896ea0b
6585997 core debugger should not depend on libm
| author | tomee |
|---|---|
| date | Fri, 03 Aug 2007 21:08:04 -0700 |
| parents | 440e36e26761 |
| children | 3bb859a7330c |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 * CDDL HEADER START | |
| 3 * | |
| 4 * The contents of this file are subject to the terms of the | |
| 3277 | 5 * Common Development and Distribution License (the "License"). |
| 6 * You may not use this file except in compliance with the License. | |
| 0 | 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 /* | |
|
4688
440e36e26761
6581855 add ::kmem_slabs dcmd to report slab usage per cache
tomee
parents:
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changeset
|
22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. |
| 0 | 23 * Use is subject to license terms. |
| 24 */ | |
| 25 | |
| 26 #pragma ident "%Z%%M% %I% %E% SMI" | |
| 27 | |
| 28 #include <mdb/mdb_modapi.h> | |
| 29 #include <mdb/mdb_module.h> | |
| 30 #include <mdb/mdb_string.h> | |
| 31 #include <mdb/mdb_debug.h> | |
| 32 #include <mdb/mdb_callb.h> | |
| 33 #include <mdb/mdb_dump.h> | |
| 34 #include <mdb/mdb_err.h> | |
| 35 #include <mdb/mdb_io.h> | |
| 36 #include <mdb/mdb_lex.h> | |
| 37 #include <mdb/mdb_frame.h> | |
| 38 #include <mdb/mdb.h> | |
| 39 | |
| 40 /* | |
| 41 * Private callback structure for implementing mdb_walk_dcmd, below. | |
| 42 */ | |
| 43 typedef struct { | |
| 44 mdb_idcmd_t *dw_dcmd; | |
| 45 mdb_argvec_t dw_argv; | |
| 46 uint_t dw_flags; | |
| 47 } dcmd_walk_arg_t; | |
| 48 | |
| 49 /* | |
| 50 * Global properties which modules are allowed to look at. These are | |
| 51 * re-initialized by the target activation callbacks. | |
| 52 */ | |
| 53 int mdb_prop_postmortem = FALSE; /* Are we examining a dump? */ | |
| 54 int mdb_prop_kernel = FALSE; /* Are we examining a kernel? */ | |
| 55 int mdb_prop_datamodel = 0; /* Data model (see mdb_target_impl.h) */ | |
| 56 | |
| 57 ssize_t | |
| 58 mdb_vread(void *buf, size_t nbytes, uintptr_t addr) | |
| 59 { | |
| 60 ssize_t rbytes = mdb_tgt_vread(mdb.m_target, buf, nbytes, addr); | |
| 61 | |
| 62 if (rbytes > 0 && rbytes < nbytes) | |
| 63 return (set_errbytes(rbytes, nbytes)); | |
| 64 | |
| 65 return (rbytes); | |
| 66 } | |
| 67 | |
| 68 ssize_t | |
| 69 mdb_vwrite(const void *buf, size_t nbytes, uintptr_t addr) | |
| 70 { | |
| 71 return (mdb_tgt_vwrite(mdb.m_target, buf, nbytes, addr)); | |
| 72 } | |
| 73 | |
| 74 ssize_t | |
| 75 mdb_fread(void *buf, size_t nbytes, uintptr_t addr) | |
| 76 { | |
| 77 ssize_t rbytes = mdb_tgt_fread(mdb.m_target, buf, nbytes, addr); | |
| 78 | |
| 79 if (rbytes > 0 && rbytes < nbytes) | |
| 80 return (set_errbytes(rbytes, nbytes)); | |
| 81 | |
| 82 return (rbytes); | |
| 83 } | |
| 84 | |
| 85 ssize_t | |
| 86 mdb_fwrite(const void *buf, size_t nbytes, uintptr_t addr) | |
| 87 { | |
| 88 return (mdb_tgt_fwrite(mdb.m_target, buf, nbytes, addr)); | |
| 89 } | |
| 90 | |
| 91 ssize_t | |
| 92 mdb_pread(void *buf, size_t nbytes, physaddr_t addr) | |
| 93 { | |
| 94 ssize_t rbytes = mdb_tgt_pread(mdb.m_target, buf, nbytes, addr); | |
| 95 | |
| 96 if (rbytes > 0 && rbytes < nbytes) | |
| 97 return (set_errbytes(rbytes, nbytes)); | |
| 98 | |
| 99 return (rbytes); | |
| 100 } | |
| 101 | |
| 102 ssize_t | |
| 103 mdb_pwrite(const void *buf, size_t nbytes, physaddr_t addr) | |
| 104 { | |
| 105 return (mdb_tgt_pwrite(mdb.m_target, buf, nbytes, addr)); | |
| 106 } | |
| 107 | |
| 108 ssize_t | |
| 109 mdb_readstr(char *buf, size_t nbytes, uintptr_t addr) | |
| 110 { | |
| 111 return (mdb_tgt_readstr(mdb.m_target, MDB_TGT_AS_VIRT, | |
| 112 buf, nbytes, addr)); | |
| 113 } | |
| 114 | |
| 115 ssize_t | |
| 116 mdb_writestr(const char *buf, uintptr_t addr) | |
| 117 { | |
| 118 return (mdb_tgt_writestr(mdb.m_target, MDB_TGT_AS_VIRT, buf, addr)); | |
| 119 } | |
| 120 | |
| 121 ssize_t | |
| 122 mdb_readsym(void *buf, size_t nbytes, const char *name) | |
| 123 { | |
| 124 ssize_t rbytes = mdb_tgt_readsym(mdb.m_target, MDB_TGT_AS_VIRT, | |
| 125 buf, nbytes, MDB_TGT_OBJ_EXEC, name); | |
| 126 | |
| 127 if (rbytes > 0 && rbytes < nbytes) | |
| 128 return (set_errbytes(rbytes, nbytes)); | |
| 129 | |
| 130 return (rbytes); | |
| 131 } | |
| 132 | |
| 133 ssize_t | |
| 134 mdb_writesym(const void *buf, size_t nbytes, const char *name) | |
| 135 { | |
| 136 return (mdb_tgt_writesym(mdb.m_target, MDB_TGT_AS_VIRT, | |
| 137 buf, nbytes, MDB_TGT_OBJ_EXEC, name)); | |
| 138 } | |
| 139 | |
| 140 ssize_t | |
| 141 mdb_readvar(void *buf, const char *name) | |
| 142 { | |
| 143 GElf_Sym sym; | |
| 144 | |
| 145 if (mdb_tgt_lookup_by_name(mdb.m_target, MDB_TGT_OBJ_EXEC, | |
| 146 name, &sym, NULL)) | |
| 147 return (-1); | |
| 148 | |
| 149 if (mdb_tgt_vread(mdb.m_target, buf, sym.st_size, | |
| 150 (uintptr_t)sym.st_value) == sym.st_size) | |
| 151 return ((ssize_t)sym.st_size); | |
| 152 | |
| 153 return (-1); | |
| 154 } | |
| 155 | |
| 156 ssize_t | |
| 157 mdb_writevar(const void *buf, const char *name) | |
| 158 { | |
| 159 GElf_Sym sym; | |
| 160 | |
| 161 if (mdb_tgt_lookup_by_name(mdb.m_target, MDB_TGT_OBJ_EXEC, | |
| 162 name, &sym, NULL)) | |
| 163 return (-1); | |
| 164 | |
| 165 if (mdb_tgt_vwrite(mdb.m_target, buf, sym.st_size, | |
| 166 (uintptr_t)sym.st_value) == sym.st_size) | |
| 167 return ((ssize_t)sym.st_size); | |
| 168 | |
| 169 return (-1); | |
| 170 } | |
| 171 | |
| 172 int | |
| 173 mdb_lookup_by_name(const char *name, GElf_Sym *sym) | |
| 174 { | |
| 175 return (mdb_lookup_by_obj(MDB_TGT_OBJ_EXEC, name, sym)); | |
| 176 } | |
| 177 | |
| 178 int | |
| 179 mdb_lookup_by_obj(const char *obj, const char *name, GElf_Sym *sym) | |
| 180 { | |
| 181 return (mdb_tgt_lookup_by_name(mdb.m_target, obj, name, sym, NULL)); | |
| 182 } | |
| 183 | |
| 184 int | |
| 185 mdb_lookup_by_addr(uintptr_t addr, uint_t flags, char *buf, | |
| 186 size_t nbytes, GElf_Sym *sym) | |
| 187 { | |
| 188 return (mdb_tgt_lookup_by_addr(mdb.m_target, addr, flags, | |
| 189 buf, nbytes, sym, NULL)); | |
| 190 } | |
| 191 | |
| 192 u_longlong_t | |
| 193 mdb_strtoull(const char *s) | |
| 194 { | |
| 195 int radix = mdb.m_radix; | |
| 196 | |
| 197 if (s[0] == '0') { | |
| 198 switch (s[1]) { | |
| 199 case 'I': | |
| 200 case 'i': | |
| 201 radix = 2; | |
| 202 s += 2; | |
| 203 break; | |
| 204 case 'O': | |
| 205 case 'o': | |
| 206 radix = 8; | |
| 207 s += 2; | |
| 208 break; | |
| 209 case 'T': | |
| 210 case 't': | |
| 211 radix = 10; | |
| 212 s += 2; | |
| 213 break; | |
| 214 case 'X': | |
| 215 case 'x': | |
| 216 radix = 16; | |
| 217 s += 2; | |
| 218 break; | |
| 219 } | |
| 220 } | |
| 221 | |
| 222 return (strtonum(s, radix)); | |
| 223 } | |
| 224 | |
| 225 size_t | |
| 226 mdb_snprintf(char *buf, size_t nbytes, const char *format, ...) | |
| 227 { | |
| 228 va_list alist; | |
| 229 | |
| 230 va_start(alist, format); | |
| 231 nbytes = mdb_iob_vsnprintf(buf, nbytes, format, alist); | |
| 232 va_end(alist); | |
| 233 | |
| 234 return (nbytes); | |
| 235 } | |
| 236 | |
| 237 void | |
| 238 mdb_printf(const char *format, ...) | |
| 239 { | |
| 240 va_list alist; | |
| 241 | |
| 242 va_start(alist, format); | |
| 243 mdb_iob_vprintf(mdb.m_out, format, alist); | |
| 244 va_end(alist); | |
| 245 } | |
| 246 | |
| 247 void | |
| 248 mdb_warn(const char *format, ...) | |
| 249 { | |
| 250 va_list alist; | |
| 251 | |
| 252 va_start(alist, format); | |
| 253 vwarn(format, alist); | |
| 254 va_end(alist); | |
| 255 } | |
| 256 | |
| 257 void | |
| 258 mdb_flush(void) | |
| 259 { | |
| 260 mdb_iob_flush(mdb.m_out); | |
| 261 } | |
| 262 | |
| 263 /* | |
| 264 * Convert an object of len bytes pointed to by srcraw between | |
| 265 * network-order and host-order and store in dstraw. The length len must | |
| 266 * be the actual length of the objects pointed to by srcraw and dstraw (or | |
| 267 * zero) or the results are undefined. srcraw and dstraw may be the same, | |
| 268 * in which case the object is converted in-place. Note that this routine | |
| 269 * will convert from host-order to network-order or network-order to | |
| 270 * host-order, since the conversion is the same in either case. | |
| 271 */ | |
| 272 /* ARGSUSED */ | |
| 273 void | |
| 274 mdb_nhconvert(void *dstraw, const void *srcraw, size_t len) | |
| 275 { | |
| 276 #ifdef _LITTLE_ENDIAN | |
| 277 uint8_t b1, b2; | |
| 278 uint8_t *dst, *src; | |
| 279 size_t i; | |
| 280 | |
| 281 dst = (uint8_t *)dstraw; | |
| 282 src = (uint8_t *)srcraw; | |
| 283 for (i = 0; i < len / 2; i++) { | |
| 284 b1 = src[i]; | |
| 285 b2 = src[len - i - 1]; | |
| 286 dst[i] = b2; | |
| 287 dst[len - i - 1] = b1; | |
| 288 } | |
| 289 #else | |
| 290 if (dstraw != srcraw) | |
| 291 bcopy(srcraw, dstraw, len); | |
| 292 #endif | |
| 293 } | |
| 294 | |
| 295 | |
| 296 /* | |
| 297 * Bit formatting functions: Note the interesting use of UM_GC here to | |
| 298 * allocate a buffer for the caller which will be automatically freed | |
| 299 * when the dcmd completes or is forcibly aborted. | |
| 300 */ | |
| 301 | |
| 302 #define NBNB (NBBY / 2) /* number of bits per nibble */ | |
| 303 #define SETBIT(buf, j, c) { \ | |
| 304 if (((j) + 1) % (NBNB + 1) == 0) \ | |
| 305 (buf)[(j)++] = ' '; \ | |
| 306 (buf)[(j)++] = (c); \ | |
| 307 } | |
| 308 | |
| 309 const char * | |
| 310 mdb_one_bit(int width, int bit, int on) | |
| 311 { | |
| 312 int i, j = 0; | |
| 313 char *buf; | |
| 314 | |
| 315 buf = mdb_zalloc(width + (width / NBNB) + 2, UM_GC | UM_SLEEP); | |
| 316 | |
| 317 for (i = --width; i > bit; i--) | |
| 318 SETBIT(buf, j, '.'); | |
| 319 | |
| 320 SETBIT(buf, j, on ? '1' : '0'); | |
| 321 | |
| 322 for (i = bit - 1; i >= 0; i--) | |
| 323 SETBIT(buf, j, '.'); | |
| 324 | |
| 325 return (buf); | |
| 326 } | |
| 327 | |
| 328 const char * | |
| 329 mdb_inval_bits(int width, int start, int stop) | |
| 330 { | |
| 331 int i, j = 0; | |
| 332 char *buf; | |
| 333 | |
| 334 buf = mdb_zalloc(width + (width / NBNB) + 2, UM_GC | UM_SLEEP); | |
| 335 | |
| 336 for (i = --width; i > stop; i--) | |
| 337 SETBIT(buf, j, '.'); | |
| 338 | |
| 339 for (i = stop; i >= start; i--) | |
| 340 SETBIT(buf, j, 'x'); | |
| 341 | |
| 342 for (; i >= 0; i--) | |
| 343 SETBIT(buf, j, '.'); | |
| 344 | |
| 345 return (buf); | |
| 346 } | |
| 347 | |
| 348 ulong_t | |
| 349 mdb_inc_indent(ulong_t i) | |
| 350 { | |
| 351 if (mdb_iob_getflags(mdb.m_out) & MDB_IOB_INDENT) { | |
| 352 ulong_t margin = mdb_iob_getmargin(mdb.m_out); | |
| 353 mdb_iob_margin(mdb.m_out, margin + i); | |
| 354 return (margin); | |
| 355 } | |
| 356 | |
| 357 mdb_iob_margin(mdb.m_out, i); | |
| 358 mdb_iob_setflags(mdb.m_out, MDB_IOB_INDENT); | |
| 359 return (0); | |
| 360 } | |
| 361 | |
| 362 ulong_t | |
| 363 mdb_dec_indent(ulong_t i) | |
| 364 { | |
| 365 if (mdb_iob_getflags(mdb.m_out) & MDB_IOB_INDENT) { | |
| 366 ulong_t margin = mdb_iob_getmargin(mdb.m_out); | |
| 367 | |
| 368 if (margin < i || margin - i == 0) { | |
| 369 mdb_iob_clrflags(mdb.m_out, MDB_IOB_INDENT); | |
| 370 mdb_iob_margin(mdb.m_out, MDB_IOB_DEFMARGIN); | |
| 371 } else | |
| 372 mdb_iob_margin(mdb.m_out, margin - i); | |
| 373 | |
| 374 return (margin); | |
| 375 } | |
| 376 | |
| 377 return (0); | |
| 378 } | |
| 379 | |
| 380 int | |
| 381 mdb_eval(const char *s) | |
| 382 { | |
| 383 mdb_frame_t *ofp = mdb.m_fmark; | |
| 384 mdb_frame_t *fp = mdb.m_frame; | |
| 385 int err; | |
| 386 | |
| 387 if (s == NULL) | |
| 388 return (set_errno(EINVAL)); | |
| 389 | |
| 390 /* | |
| 391 * Push m_in down onto the input stack, then set m_in to point to the | |
| 392 * i/o buffer for our command string, and reset the frame marker. | |
| 393 * The mdb_run() function returns when the new m_in iob reaches EOF. | |
| 394 */ | |
| 395 mdb_iob_stack_push(&fp->f_istk, mdb.m_in, yylineno); | |
| 396 mdb.m_in = mdb_iob_create(mdb_strio_create(s), MDB_IOB_RDONLY); | |
| 397 | |
| 398 mdb.m_fmark = NULL; | |
| 399 err = mdb_run(); | |
| 400 mdb.m_fmark = ofp; | |
| 401 | |
| 402 /* | |
| 403 * Now pop the old standard input stream and restore mdb.m_in and | |
| 404 * the parser's saved current line number. | |
| 405 */ | |
| 406 mdb.m_in = mdb_iob_stack_pop(&fp->f_istk); | |
| 407 yylineno = mdb_iob_lineno(mdb.m_in); | |
| 408 | |
| 409 /* | |
| 410 * If mdb_run() returned an error, propagate this backward | |
| 411 * up the stack of debugger environment frames. | |
| 412 */ | |
| 413 if (MDB_ERR_IS_FATAL(err)) | |
| 414 longjmp(fp->f_pcb, err); | |
| 415 | |
| 416 if (err == MDB_ERR_PAGER || err == MDB_ERR_SIGINT) | |
| 417 return (set_errno(EMDB_CANCEL)); | |
| 418 | |
| 419 if (err != 0) | |
| 420 return (set_errno(EMDB_EVAL)); | |
| 421 | |
| 422 return (0); | |
| 423 } | |
| 424 | |
| 425 void | |
| 426 mdb_set_dot(uintmax_t addr) | |
| 427 { | |
| 428 mdb_nv_set_value(mdb.m_dot, addr); | |
| 429 mdb.m_incr = 0; | |
| 430 } | |
| 431 | |
| 432 uintmax_t | |
| 433 mdb_get_dot(void) | |
| 434 { | |
| 435 return (mdb_nv_get_value(mdb.m_dot)); | |
| 436 } | |
| 437 | |
| 438 static int | |
| 439 walk_step(mdb_wcb_t *wcb) | |
| 440 { | |
| 441 mdb_wcb_t *nwcb = wcb->w_lyr_head; | |
| 442 int status; | |
| 443 | |
| 444 /* | |
| 445 * If the control block has no layers, we just invoke the walker's | |
| 446 * step function and return status indicating whether to continue | |
| 447 * or stop. If the control block has layers, we need to invoke | |
| 448 * ourself recursively for the next layer, until eventually we | |
| 449 * percolate down to an unlayered walk. | |
| 450 */ | |
| 451 if (nwcb == NULL) | |
| 452 return (wcb->w_walker->iwlk_step(&wcb->w_state)); | |
| 453 | |
| 454 if ((status = walk_step(nwcb)) != WALK_NEXT) { | |
| 455 wcb->w_lyr_head = nwcb->w_lyr_link; | |
| 456 nwcb->w_lyr_link = NULL; | |
| 457 mdb_wcb_destroy(nwcb); | |
| 458 } | |
| 459 | |
| 460 if (status == WALK_DONE && wcb->w_lyr_head != NULL) | |
| 461 return (WALK_NEXT); | |
| 462 | |
| 463 return (status); | |
| 464 } | |
| 465 | |
| 466 static int | |
| 467 walk_common(mdb_wcb_t *wcb) | |
| 468 { | |
| 469 int status, rval = 0; | |
| 470 mdb_frame_t *pfp; | |
| 471 | |
| 472 /* | |
| 473 * Enter the control block in the active list so that mdb can clean | |
| 474 * up after it in case we abort out of the current command. | |
| 475 */ | |
| 476 if ((pfp = mdb_list_prev(mdb.m_frame)) != NULL && pfp->f_pcmd != NULL) | |
| 477 mdb_wcb_insert(wcb, pfp); | |
| 478 else | |
| 479 mdb_wcb_insert(wcb, mdb.m_frame); | |
| 480 | |
| 481 /* | |
| 482 * The per-walk constructor performs private buffer initialization | |
| 483 * and locates whatever symbols are necessary. | |
| 484 */ | |
| 485 if ((status = wcb->w_walker->iwlk_init(&wcb->w_state)) != WALK_NEXT) { | |
| 486 if (status != WALK_DONE) | |
| 487 rval = set_errno(EMDB_WALKINIT); | |
| 488 goto done; | |
| 489 } | |
| 490 | |
| 491 /* | |
| 492 * Mark wcb to indicate that walk_init has been called (which means | |
| 493 * we can call walk_fini if the walk is aborted at this point). | |
| 494 */ | |
| 495 wcb->w_inited = TRUE; | |
| 496 | |
| 497 while (walk_step(wcb) == WALK_NEXT) | |
| 498 continue; | |
| 499 done: | |
| 500 if ((pfp = mdb_list_prev(mdb.m_frame)) != NULL && pfp->f_pcmd != NULL) | |
| 501 mdb_wcb_delete(wcb, pfp); | |
| 502 else | |
| 503 mdb_wcb_delete(wcb, mdb.m_frame); | |
| 504 | |
| 505 mdb_wcb_destroy(wcb); | |
| 506 return (rval); | |
| 507 } | |
| 508 | |
| 509 int | |
| 510 mdb_pwalk(const char *name, mdb_walk_cb_t func, void *data, uintptr_t addr) | |
| 511 { | |
| 512 mdb_iwalker_t *iwp = mdb_walker_lookup(name); | |
| 513 | |
| 514 if (func == NULL) | |
| 515 return (set_errno(EINVAL)); | |
| 516 | |
| 517 if (iwp != NULL) | |
| 518 return (walk_common(mdb_wcb_create(iwp, func, data, addr))); | |
| 519 | |
| 520 return (-1); /* errno is set for us */ | |
| 521 } | |
| 522 | |
| 523 int | |
| 524 mdb_walk(const char *name, mdb_walk_cb_t func, void *data) | |
| 525 { | |
| 526 return (mdb_pwalk(name, func, data, NULL)); | |
| 527 } | |
| 528 | |
| 529 /*ARGSUSED*/ | |
| 530 static int | |
| 531 walk_dcmd(uintptr_t addr, const void *ignored, dcmd_walk_arg_t *dwp) | |
| 532 { | |
| 533 int status = mdb_call_idcmd(dwp->dw_dcmd, addr, 1, dwp->dw_flags, | |
| 534 &dwp->dw_argv, NULL, NULL); | |
| 535 | |
| 536 if (status == DCMD_USAGE || status == DCMD_ABORT) | |
| 537 return (WALK_ERR); | |
| 538 | |
| 539 dwp->dw_flags &= ~DCMD_LOOPFIRST; | |
| 540 return (WALK_NEXT); | |
| 541 } | |
| 542 | |
| 543 int | |
| 544 mdb_pwalk_dcmd(const char *wname, const char *dcname, | |
| 545 int argc, const mdb_arg_t *argv, uintptr_t addr) | |
| 546 { | |
| 547 mdb_argvec_t args; | |
| 548 dcmd_walk_arg_t dw; | |
| 549 mdb_iwalker_t *iwp; | |
| 550 mdb_wcb_t *wcb; | |
| 551 int status; | |
| 552 | |
| 553 if (wname == NULL || dcname == NULL) | |
| 554 return (set_errno(EINVAL)); | |
| 555 | |
| 556 if ((dw.dw_dcmd = mdb_dcmd_lookup(dcname)) == NULL) | |
| 557 return (-1); /* errno is set for us */ | |
| 558 | |
| 559 if ((iwp = mdb_walker_lookup(wname)) == NULL) | |
| 560 return (-1); /* errno is set for us */ | |
| 561 | |
| 562 args.a_data = (mdb_arg_t *)argv; | |
| 563 args.a_nelems = args.a_size = argc; | |
| 564 | |
| 565 mdb_argvec_create(&dw.dw_argv); | |
| 566 mdb_argvec_copy(&dw.dw_argv, &args); | |
| 567 dw.dw_flags = DCMD_LOOP | DCMD_LOOPFIRST | DCMD_ADDRSPEC; | |
| 568 | |
| 569 wcb = mdb_wcb_create(iwp, (mdb_walk_cb_t)walk_dcmd, &dw, addr); | |
| 570 status = walk_common(wcb); | |
| 571 | |
| 572 mdb_argvec_zero(&dw.dw_argv); | |
| 573 mdb_argvec_destroy(&dw.dw_argv); | |
| 574 | |
| 575 return (status); | |
| 576 } | |
| 577 | |
| 578 int | |
| 579 mdb_walk_dcmd(const char *wname, const char *dcname, | |
| 580 int argc, const mdb_arg_t *argv) | |
| 581 { | |
| 582 return (mdb_pwalk_dcmd(wname, dcname, argc, argv, NULL)); | |
| 583 } | |
| 584 | |
| 585 /*ARGSUSED*/ | |
| 586 static int | |
| 587 layered_walk_step(uintptr_t addr, const void *data, mdb_wcb_t *wcb) | |
| 588 { | |
| 589 /* | |
| 590 * Prior to calling the top-level walker's step function, reset its | |
| 591 * mdb_walk_state_t walk_addr and walk_layer members to refer to the | |
| 592 * target virtual address and data buffer of the underlying object. | |
| 593 */ | |
| 594 wcb->w_state.walk_addr = addr; | |
| 595 wcb->w_state.walk_layer = data; | |
| 596 | |
| 597 return (wcb->w_walker->iwlk_step(&wcb->w_state)); | |
| 598 } | |
| 599 | |
| 600 int | |
| 601 mdb_layered_walk(const char *wname, mdb_walk_state_t *wsp) | |
| 602 { | |
| 603 mdb_wcb_t *cwcb, *wcb; | |
| 604 mdb_iwalker_t *iwp; | |
| 605 | |
| 606 if (wname == NULL || wsp == NULL) | |
| 607 return (set_errno(EINVAL)); | |
| 608 | |
| 609 if ((iwp = mdb_walker_lookup(wname)) == NULL) | |
| 610 return (-1); /* errno is set for us */ | |
| 611 | |
| 612 if ((cwcb = mdb_wcb_from_state(wsp)) == NULL) | |
| 613 return (set_errno(EMDB_BADWCB)); | |
| 614 | |
| 615 if (cwcb->w_walker == iwp) | |
| 616 return (set_errno(EMDB_WALKLOOP)); | |
| 617 | |
| 618 wcb = mdb_wcb_create(iwp, (mdb_walk_cb_t)layered_walk_step, | |
| 619 cwcb, wsp->walk_addr); | |
| 620 | |
| 621 if (iwp->iwlk_init(&wcb->w_state) != WALK_NEXT) { | |
| 622 mdb_wcb_destroy(wcb); | |
| 623 return (set_errno(EMDB_WALKINIT)); | |
| 624 } | |
| 625 | |
| 626 wcb->w_inited = TRUE; | |
| 627 | |
| 628 mdb_dprintf(MDB_DBG_WALK, "added %s`%s as %s`%s layer\n", | |
| 629 iwp->iwlk_modp->mod_name, iwp->iwlk_name, | |
| 630 cwcb->w_walker->iwlk_modp->mod_name, cwcb->w_walker->iwlk_name); | |
| 631 | |
| 632 if (cwcb->w_lyr_head != NULL) { | |
| 633 for (cwcb = cwcb->w_lyr_head; cwcb->w_lyr_link != NULL; ) | |
| 634 cwcb = cwcb->w_lyr_link; | |
| 635 cwcb->w_lyr_link = wcb; | |
| 636 } else | |
| 637 cwcb->w_lyr_head = wcb; | |
| 638 | |
| 639 return (0); | |
| 640 } | |
| 641 | |
| 642 int | |
| 643 mdb_call_dcmd(const char *name, uintptr_t dot, uint_t flags, | |
| 644 int argc, const mdb_arg_t *argv) | |
| 645 { | |
| 646 mdb_idcmd_t *idcp; | |
| 647 mdb_argvec_t args; | |
| 648 int status; | |
| 649 | |
| 650 if (name == NULL || argc < 0) | |
| 651 return (set_errno(EINVAL)); | |
| 652 | |
| 653 if ((idcp = mdb_dcmd_lookup(name)) == NULL) | |
| 654 return (-1); /* errno is set for us */ | |
| 655 | |
| 656 args.a_data = (mdb_arg_t *)argv; | |
| 657 args.a_nelems = args.a_size = argc; | |
| 658 status = mdb_call_idcmd(idcp, dot, 1, flags, &args, NULL, NULL); | |
| 659 | |
| 660 if (status == DCMD_ERR || status == DCMD_ABORT) | |
| 661 return (set_errno(EMDB_DCFAIL)); | |
| 662 | |
| 663 if (status == DCMD_USAGE) | |
| 664 return (set_errno(EMDB_DCUSAGE)); | |
| 665 | |
| 666 return (0); | |
| 667 } | |
| 668 | |
| 669 int | |
| 670 mdb_add_walker(const mdb_walker_t *wp) | |
| 671 { | |
| 672 mdb_module_t *mp; | |
| 673 | |
| 674 if (mdb.m_lmod == NULL) { | |
| 675 mdb_cmd_t *cp = mdb.m_frame->f_cp; | |
| 676 mp = cp->c_dcmd->idc_modp; | |
| 677 } else | |
| 678 mp = mdb.m_lmod; | |
| 679 | |
| 680 return (mdb_module_add_walker(mp, wp, 0)); | |
| 681 } | |
| 682 | |
| 683 int | |
| 684 mdb_remove_walker(const char *name) | |
| 685 { | |
| 686 mdb_module_t *mp; | |
| 687 | |
| 688 if (mdb.m_lmod == NULL) { | |
| 689 mdb_cmd_t *cp = mdb.m_frame->f_cp; | |
| 690 mp = cp->c_dcmd->idc_modp; | |
| 691 } else | |
| 692 mp = mdb.m_lmod; | |
| 693 | |
| 694 return (mdb_module_remove_walker(mp, name)); | |
| 695 } | |
| 696 | |
| 697 void | |
| 698 mdb_get_pipe(mdb_pipe_t *p) | |
| 699 { | |
| 700 mdb_cmd_t *cp = mdb.m_frame->f_cp; | |
| 701 mdb_addrvec_t *adp = &cp->c_addrv; | |
| 702 | |
| 703 if (p == NULL) { | |
| 704 warn("dcmd failure: mdb_get_pipe invoked with NULL pointer\n"); | |
| 705 longjmp(mdb.m_frame->f_pcb, MDB_ERR_API); | |
| 706 } | |
| 707 | |
| 708 if (adp->ad_nelems != 0) { | |
| 709 ASSERT(adp->ad_ndx != 0); | |
| 710 p->pipe_data = &adp->ad_data[adp->ad_ndx - 1]; | |
| 711 p->pipe_len = adp->ad_nelems - adp->ad_ndx + 1; | |
| 712 adp->ad_ndx = adp->ad_nelems; | |
| 713 } else { | |
| 714 p->pipe_data = NULL; | |
| 715 p->pipe_len = 0; | |
| 716 } | |
| 717 } | |
| 718 | |
| 719 void | |
| 720 mdb_set_pipe(const mdb_pipe_t *p) | |
| 721 { | |
| 722 mdb_cmd_t *cp = mdb.m_frame->f_pcmd; | |
| 723 | |
| 724 if (p == NULL) { | |
| 725 warn("dcmd failure: mdb_set_pipe invoked with NULL pointer\n"); | |
| 726 longjmp(mdb.m_frame->f_pcb, MDB_ERR_API); | |
| 727 } | |
| 728 | |
| 729 if (cp != NULL) { | |
| 730 size_t nbytes = sizeof (uintptr_t) * p->pipe_len; | |
| 731 | |
| 3277 | 732 mdb_cmd_reset(cp); |
| 0 | 733 cp->c_addrv.ad_data = mdb_alloc(nbytes, UM_SLEEP); |
| 734 bcopy(p->pipe_data, cp->c_addrv.ad_data, nbytes); | |
| 735 cp->c_addrv.ad_nelems = p->pipe_len; | |
| 736 cp->c_addrv.ad_size = p->pipe_len; | |
| 737 } | |
| 738 } | |
| 739 | |
| 740 ssize_t | |
| 741 mdb_get_xdata(const char *name, void *buf, size_t nbytes) | |
| 742 { | |
| 743 return (mdb_tgt_getxdata(mdb.m_target, name, buf, nbytes)); | |
| 744 } | |
| 745 | |
| 746 /* | |
| 747 * Private structure and function for implementing mdb_dumpptr on top | |
| 748 * of mdb_dump_internal | |
| 749 */ | |
| 750 typedef struct dptrdat { | |
| 751 mdb_dumpptr_cb_t func; | |
| 752 void *arg; | |
| 753 } dptrdat_t; | |
| 754 | |
| 755 static ssize_t | |
| 756 mdb_dump_aux_ptr(void *buf, size_t nbyte, uint64_t offset, void *arg) | |
| 757 { | |
| 758 dptrdat_t *dat = arg; | |
| 759 | |
| 760 return (dat->func(buf, nbyte, offset, dat->arg)); | |
| 761 } | |
| 762 | |
| 763 /* | |
| 764 * Private structure and function for handling callbacks which return | |
| 765 * EMDB_PARTIAL | |
| 766 */ | |
| 767 typedef struct d64dat { | |
| 768 mdb_dump64_cb_t func; | |
| 769 void *arg; | |
| 770 } d64dat_t; | |
| 771 | |
| 772 static ssize_t | |
| 773 mdb_dump_aux_partial(void *buf, size_t nbyte, uint64_t offset, void *arg) | |
| 774 { | |
| 775 d64dat_t *dat = arg; | |
| 776 int result; | |
| 777 int count; | |
| 778 | |
| 779 result = dat->func(buf, nbyte, offset, dat->arg); | |
| 780 if (result == -1 && errno == EMDB_PARTIAL) { | |
| 781 count = 0; | |
| 782 do { | |
| 783 result = dat->func((char *)buf + count, 1, | |
| 784 offset + count, dat->arg); | |
| 785 if (result == 1) | |
| 786 count++; | |
| 787 } while (count < nbyte && result == 1); | |
| 788 if (count) | |
| 789 result = count; | |
| 790 } | |
| 791 | |
| 792 return (result); | |
| 793 } | |
| 794 | |
| 795 int | |
| 796 mdb_dumpptr(uintptr_t addr, size_t len, uint_t flags, mdb_dumpptr_cb_t fp, | |
| 797 void *arg) | |
| 798 { | |
| 799 dptrdat_t dat; | |
| 800 d64dat_t dat64; | |
| 801 | |
| 802 dat.func = fp; | |
| 803 dat.arg = arg; | |
| 804 dat64.func = mdb_dump_aux_ptr; | |
| 805 dat64.arg = &dat; | |
| 806 return (mdb_dump_internal(addr, len, flags, mdb_dump_aux_partial, | |
| 807 &dat64, sizeof (uintptr_t))); | |
| 808 } | |
| 809 | |
| 810 int | |
| 811 mdb_dump64(uint64_t addr, uint64_t len, uint_t flags, mdb_dump64_cb_t fp, | |
| 812 void *arg) | |
| 813 { | |
| 814 d64dat_t dat64; | |
| 815 | |
| 816 dat64.func = fp; | |
| 817 dat64.arg = arg; | |
| 818 return (mdb_dump_internal(addr, len, flags, mdb_dump_aux_partial, | |
| 819 &dat64, sizeof (uint64_t))); | |
| 820 } | |
| 821 | |
| 822 int | |
| 823 mdb_get_state(void) | |
| 824 { | |
| 825 mdb_tgt_status_t ts; | |
| 826 | |
| 827 (void) mdb_tgt_status(mdb.m_target, &ts); | |
| 828 | |
| 829 return (ts.st_state); | |
| 830 } | |
| 831 | |
| 832 void * | |
| 833 mdb_callback_add(int class, mdb_callback_f fp, void *arg) | |
| 834 { | |
| 835 mdb_module_t *m; | |
| 836 | |
| 837 if (class != MDB_CALLBACK_STCHG && class != MDB_CALLBACK_PROMPT) { | |
| 838 (void) set_errno(EINVAL); | |
| 839 return (NULL); | |
| 840 } | |
| 841 | |
| 842 if (mdb.m_lmod != NULL) | |
| 843 m = mdb.m_lmod; | |
| 844 else | |
| 845 m = mdb.m_frame->f_cp->c_dcmd->idc_modp; | |
| 846 | |
| 847 return (mdb_callb_add(m, class, fp, arg)); | |
| 848 } | |
| 849 | |
| 850 void | |
| 851 mdb_callback_remove(void *hdl) | |
| 852 { | |
| 853 mdb_callb_remove(hdl); | |
| 854 } |