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 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 * Copyright 2016 Joyent, Inc. 25 * Copyright (c) 2017 by Delphix. All rights reserved. 26 */ 27 28 /* 29 * Format String Decoder 30 * 31 * This file provides the core engine for converting strings of format 32 * characters into formatted output. The various format dcmds invoke the 33 * mdb_fmt_print() function below with a target, address space identifier, 34 * address, count, and format character, and it reads the required data from 35 * the target and prints the formatted output to stdout. Since nearly two 36 * thirds of the format characters can be expressed as simple printf format 37 * strings, we implement the engine using the lookup table below. Each entry 38 * provides either a pointer to a printf format string or a pointer to a 39 * function to perform special processing. For the printf case, the 40 * corresponding data size in bytes is also supplied. The printf processing 41 * code handles 1, 2, 4, and 8-byte reads into an unsigned integer container 42 * of the given size, and then simply calls mdb_iob_printf with the integer 43 * and format string. This handles all printf cases, except when unsigned 44 * promotion of an integer type in the varargs list does not perform the 45 * conversion we require to get the proper result. With the current set of 46 * format characters, this case only occurs twice: we need a 4-byte float 47 * to get promoted to 8-byte double for the 'f' format so it can be 48 * correctly formatted by %f, and we need a 1-byte int8_t to get promoted 49 * with sign extension to a 4-byte int32_t for the 'v' format so it can be 50 * correctly formatted by %d. We provide explicit functions to handle these 51 * cases, as well as to handle special format characters such as 'i', etc. 52 * We also provide a cmd_formats() dcmd function below which prints a table 53 * of the output formats and their sizes. Format characters that provide 54 * custom functions provide their help description string explicitly. All 55 * the printf formats have their help strings generated automatically by 56 * our printf "unparser" mdb_iob_format2str(). 57 */ 58 59 #include <mdb/mdb_types.h> 60 #include <mdb/mdb_target.h> 61 #include <mdb/mdb_io.h> 62 #include <mdb/mdb_err.h> 63 #include <mdb/mdb_string.h> 64 #include <mdb/mdb_modapi.h> 65 #include <mdb/mdb.h> 66 67 #define FUNCP(p) ((void *)(p)) /* Cast to f_ptr type */ 68 #define SZ_NONE ((size_t)-1L) /* Format does not change dot */ 69 70 typedef mdb_tgt_addr_t mdb_fmt_func_f(mdb_tgt_t *, 71 mdb_tgt_as_t, mdb_tgt_addr_t, size_t); 72 73 /* 74 * There are several 'special' characters that are handled outside of 75 * mdb_fmt_print(). These are characters that write (vwWZ) and characters that 76 * match (lLM). We include them here so that ::formats can display an 77 * appropriate message, but they are handled specially by write_arglist() and 78 * match_arglist() in mdb_cmds.c. 79 */ 80 #define FMT_NONE 0x0 /* Format character is not supported */ 81 #define FMT_FUNC 0x1 /* f_ptr is a mdb_fmt_func_f to call */ 82 #define FMT_PRINTF 0x2 /* f_ptr is a const char * format string */ 83 #define FMT_MATCH 0x4 /* Match command (not supported here) */ 84 #define FMT_WRITE 0x8 /* Command writes to address space */ 85 86 #define FMT_TYPE(x) ((x) & 0x7) /* Excludes modifying flags (FMT_WRITE) */ 87 88 typedef struct mdb_fmt_desc { 89 int f_type; /* Type of format (see above) */ 90 void *f_ptr; /* Data pointer (see above) */ 91 const char *f_help; /* Additional help string */ 92 size_t f_size; /* Size of type in bytes, or SZ_NONE */ 93 boolean_t f_float; /* Is this a floating point type */ 94 } mdb_fmt_desc_t; 95 96 static const char help_plus[] = "increment dot by the count"; 97 static const char help_minus[] = "decrement dot by the count"; 98 static const char help_escchr[] = "character using C character notation"; 99 static const char help_swapint[] = "swap bytes and shorts"; 100 static const char help_dotinstr[] = "address and disassembled instruction"; 101 static const char help_instr[] = "disassembled instruction"; 102 static const char help_escstr[] = "string using C string notation"; 103 static const char help_time32[] = "decoded time32_t"; 104 static const char help_carat[] = "decrement dot by increment * count"; 105 static const char help_dot[] = "dot as symbol+offset"; 106 #ifndef _KMDB 107 static const char help_f[] = "float"; 108 #endif 109 static const char help_swapshort[] = "swap bytes"; 110 static const char help_nl[] = "newline"; 111 static const char help_ws[] = "whitespace"; 112 static const char help_rawstr[] = "raw string"; 113 static const char help_tab[] = "horizontal tab"; 114 static const char help_sdbyte[] = "decimal signed int"; 115 static const char help_time64[] = "decoded time64_t"; 116 static const char help_binary[] = "binary unsigned long long"; 117 static const char help_hex64[] = "hexadecimal long long"; 118 static const char help_match32[] = "int"; 119 static const char help_match64[] = "long long"; 120 static const char help_match16[] = "short"; 121 static const char help_uintptr[] = "hexadecimal uintptr_t"; 122 static const char help_ctf[] = "whose size is inferred by CTF info"; 123 124 /*ARGSUSED*/ 125 static mdb_tgt_addr_t 126 fmt_dot(mdb_tgt_t *t, mdb_tgt_as_t as, mdb_tgt_addr_t addr, size_t cnt) 127 { 128 uint_t oflags = mdb_iob_getflags(mdb.m_out) & MDB_IOB_INDENT; 129 char buf[24]; 130 131 mdb_iob_clrflags(mdb.m_out, oflags); 132 133 if (mdb.m_flags & MDB_FL_PSYM) { 134 while (cnt-- != 0) 135 mdb_iob_printf(mdb.m_out, "%-#16lla%16T", addr); 136 } else { 137 (void) mdb_iob_snprintf(buf, sizeof (buf), 138 "%#llx:", (u_longlong_t)addr); 139 while (cnt-- != 0) 140 mdb_iob_printf(mdb.m_out, "%-16s%16T", buf); 141 } 142 143 mdb_iob_setflags(mdb.m_out, oflags); 144 mdb_nv_set_value(mdb.m_rvalue, addr); 145 return (addr); 146 } 147 148 #ifndef _KMDB 149 static mdb_tgt_addr_t 150 fmt_float(mdb_tgt_t *t, mdb_tgt_as_t as, mdb_tgt_addr_t addr, size_t cnt) 151 { 152 float f; 153 /* 154 * We need to handle float as a special case because we need it to be 155 * promoted to a double by virtue of appearing as a parameter, and all 156 * our generic format handling below is based on integer types. 157 */ 158 while (cnt-- != 0) { 159 if (mdb_tgt_aread(t, as, &f, sizeof (f), addr) != sizeof (f)) { 160 warn("failed to read data from target"); 161 break; 162 } 163 mdb_iob_printf(mdb.m_out, "%e", f); 164 addr += sizeof (f); 165 } 166 return (addr); 167 } 168 #endif 169 170 /*ARGSUSED*/ 171 static mdb_tgt_addr_t 172 fmt_plus(mdb_tgt_t *t, mdb_tgt_as_t as, mdb_tgt_addr_t addr, size_t cnt) 173 { 174 return (addr + cnt); 175 } 176 177 /*ARGSUSED*/ 178 static mdb_tgt_addr_t 179 fmt_minus(mdb_tgt_t *t, mdb_tgt_as_t as, mdb_tgt_addr_t addr, size_t cnt) 180 { 181 return (addr - cnt); 182 } 183 184 /*ARGSUSED*/ 185 static mdb_tgt_addr_t 186 fmt_carat(mdb_tgt_t *t, mdb_tgt_as_t as, mdb_tgt_addr_t addr, size_t cnt) 187 { 188 return (addr - (mdb.m_incr * cnt)); 189 } 190 191 /*ARGSUSED*/ 192 static mdb_tgt_addr_t 193 fmt_nl(mdb_tgt_t *t, mdb_tgt_as_t as, mdb_tgt_addr_t addr, size_t cnt) 194 { 195 while (cnt-- != 0) 196 mdb_iob_nl(mdb.m_out); 197 198 return (addr); 199 } 200 201 /*ARGSUSED*/ 202 static mdb_tgt_addr_t 203 fmt_ws(mdb_tgt_t *t, mdb_tgt_as_t as, mdb_tgt_addr_t addr, size_t cnt) 204 { 205 mdb_iob_ws(mdb.m_out, cnt); 206 return (addr); 207 } 208 209 /*ARGSUSED*/ 210 static mdb_tgt_addr_t 211 fmt_tab(mdb_tgt_t *t, mdb_tgt_as_t as, mdb_tgt_addr_t addr, size_t cnt) 212 { 213 size_t ts = mdb_iob_gettabstop(mdb.m_out); 214 215 mdb_iob_tabstop(mdb.m_out, cnt); 216 mdb_iob_tab(mdb.m_out); 217 mdb_iob_tabstop(mdb.m_out, ts); 218 219 return (addr); 220 } 221 222 static mdb_tgt_addr_t 223 fmt_rawstr(mdb_tgt_t *t, mdb_tgt_as_t as, mdb_tgt_addr_t addr, size_t cnt) 224 { 225 uint_t oflags = mdb_iob_getflags(mdb.m_out) & MDB_IOB_INDENT; 226 char buf[BUFSIZ]; 227 ssize_t nbytes; 228 229 mdb_iob_clrflags(mdb.m_out, oflags); 230 231 for (; cnt-- != 0; addr++) { 232 do { 233 nbytes = mdb_tgt_readstr(t, as, buf, BUFSIZ, addr); 234 if (nbytes > 0) { 235 mdb_iob_puts(mdb.m_out, buf); 236 addr += MIN(nbytes, BUFSIZ - 1); 237 } else if (nbytes < 0) { 238 warn("failed to read data from target"); 239 goto out; 240 } 241 } while (nbytes == BUFSIZ); 242 243 if (cnt != 0) 244 mdb_iob_puts(mdb.m_out, "\\0"); 245 } 246 out: 247 mdb_iob_setflags(mdb.m_out, oflags); 248 return (addr); 249 } 250 251 static mdb_tgt_addr_t 252 fmt_escstr(mdb_tgt_t *t, mdb_tgt_as_t as, mdb_tgt_addr_t addr, size_t cnt) 253 { 254 uint_t oflags = mdb_iob_getflags(mdb.m_out) & MDB_IOB_INDENT; 255 char buf[BUFSIZ]; 256 ssize_t nbytes; 257 char *s; 258 259 mdb_iob_clrflags(mdb.m_out, oflags); 260 261 for (; cnt-- != 0; addr++) { 262 do { 263 nbytes = mdb_tgt_readstr(t, as, buf, BUFSIZ, addr); 264 if (nbytes > 0) { 265 s = strchr2esc(buf, strlen(buf)); 266 mdb_iob_puts(mdb.m_out, s); 267 strfree(s); 268 addr += MIN(nbytes, BUFSIZ - 1); 269 } else if (nbytes < 0) { 270 warn("failed to read data from target"); 271 goto out; 272 } 273 } while (nbytes == BUFSIZ); 274 275 if (cnt != 0) 276 mdb_iob_puts(mdb.m_out, "\\0"); 277 } 278 out: 279 mdb_iob_setflags(mdb.m_out, oflags); 280 return (addr); 281 } 282 283 static mdb_tgt_addr_t 284 fmt_escchr(mdb_tgt_t *t, mdb_tgt_as_t as, mdb_tgt_addr_t addr, size_t cnt) 285 { 286 char *(*convert)(const char *, size_t); 287 ssize_t nbytes; 288 char *buf, *s; 289 290 if (mdb.m_flags & MDB_FL_ADB) 291 convert = &strchr2adb; 292 else 293 convert = &strchr2esc; 294 295 buf = mdb_alloc(cnt + 1, UM_SLEEP); 296 buf[cnt] = 0; 297 298 if ((nbytes = mdb_tgt_aread(t, as, buf, cnt, addr)) > 0) { 299 s = convert(buf, nbytes); 300 mdb_iob_puts(mdb.m_out, s); 301 strfree(s); 302 addr += nbytes; 303 } 304 305 mdb_free(buf, cnt + 1); 306 return (addr); 307 } 308 309 static mdb_tgt_addr_t 310 fmt_swapshort(mdb_tgt_t *t, mdb_tgt_as_t as, mdb_tgt_addr_t addr, size_t cnt) 311 { 312 ushort_t x; 313 314 while (cnt-- != 0) { 315 if (mdb_tgt_aread(t, as, &x, sizeof (x), addr) == sizeof (x)) { 316 x = (x << 8) | (x >> 8); 317 mdb_iob_printf(mdb.m_out, "%-8x", x); 318 mdb_nv_set_value(mdb.m_rvalue, x); 319 addr += sizeof (x); 320 } else { 321 warn("failed to read data from target"); 322 break; 323 } 324 } 325 return (addr); 326 } 327 328 static mdb_tgt_addr_t 329 fmt_swapint(mdb_tgt_t *t, mdb_tgt_as_t as, mdb_tgt_addr_t addr, size_t cnt) 330 { 331 uint_t x; 332 333 while (cnt-- != 0) { 334 if (mdb_tgt_aread(t, as, &x, sizeof (x), addr) == sizeof (x)) { 335 x = ((x << 24) | ((x << 8) & 0xff0000) | 336 ((x >> 8) & 0xff00) | ((x >> 24) & 0xff)); 337 mdb_iob_printf(mdb.m_out, "%-16x", x); 338 mdb_nv_set_value(mdb.m_rvalue, x); 339 addr += sizeof (x); 340 } else { 341 warn("failed to read data from target"); 342 break; 343 } 344 } 345 return (addr); 346 } 347 348 static mdb_tgt_addr_t 349 fmt_time32(mdb_tgt_t *t, mdb_tgt_as_t as, mdb_tgt_addr_t addr, size_t cnt) 350 { 351 int32_t x; 352 353 while (cnt-- != 0) { 354 if (mdb_tgt_aread(t, as, &x, sizeof (x), addr) == sizeof (x)) { 355 mdb_iob_printf(mdb.m_out, "%-24Y", (time_t)x); 356 mdb_nv_set_value(mdb.m_rvalue, x); 357 addr += sizeof (x); 358 } else { 359 warn("failed to read data from target"); 360 break; 361 } 362 } 363 return (addr); 364 } 365 366 static mdb_tgt_addr_t 367 fmt_time64(mdb_tgt_t *t, mdb_tgt_as_t as, mdb_tgt_addr_t addr, size_t cnt) 368 { 369 int64_t x; 370 371 while (cnt-- != 0) { 372 if (mdb_tgt_aread(t, as, &x, sizeof (x), addr) == sizeof (x)) { 373 if ((time_t)x == x) 374 mdb_iob_printf(mdb.m_out, "%-24Y", (time_t)x); 375 else 376 mdb_iob_printf(mdb.m_out, "%-24llR", x); 377 378 mdb_nv_set_value(mdb.m_rvalue, x); 379 addr += sizeof (x); 380 } else { 381 warn("failed to read data from target"); 382 break; 383 } 384 } 385 return (addr); 386 } 387 388 static mdb_tgt_addr_t 389 fmt_sdbyte(mdb_tgt_t *t, mdb_tgt_as_t as, mdb_tgt_addr_t addr, size_t cnt) 390 { 391 int8_t x; 392 393 while (cnt-- != 0) { 394 if (mdb_tgt_aread(t, as, &x, sizeof (x), addr) == sizeof (x)) { 395 mdb_iob_printf(mdb.m_out, "%-8d", (int32_t)x); 396 mdb_nv_set_value(mdb.m_rvalue, (uint8_t)x); 397 addr += sizeof (x); 398 } else { 399 warn("failed to read data from target"); 400 break; 401 } 402 } 403 return (addr); 404 } 405 406 static mdb_tgt_addr_t 407 fmt_instr(mdb_tgt_t *t, mdb_tgt_as_t as, mdb_tgt_addr_t addr, size_t cnt) 408 { 409 char buf[BUFSIZ]; 410 uintptr_t naddr; 411 412 while (cnt-- != 0) { 413 naddr = mdb_dis_ins2str(mdb.m_disasm, t, as, 414 buf, sizeof (buf), addr); 415 if (naddr == addr) 416 return (addr); /* If we didn't move, we failed */ 417 mdb_iob_printf(mdb.m_out, "%s\n", buf); 418 addr = naddr; 419 } 420 return (addr); 421 } 422 423 static mdb_tgt_addr_t 424 fmt_dotinstr(mdb_tgt_t *t, mdb_tgt_as_t as, mdb_tgt_addr_t addr, size_t cnt) 425 { 426 uint_t oflags = mdb_iob_getflags(mdb.m_out) & MDB_IOB_INDENT; 427 428 char buf[BUFSIZ]; 429 uintptr_t naddr; 430 uint32_t i; 431 432 for (mdb_iob_clrflags(mdb.m_out, oflags); cnt-- != 0; addr = naddr) { 433 if (mdb_tgt_aread(t, as, &i, sizeof (i), addr) != sizeof (i)) { 434 warn("failed to read data from target"); 435 break; /* Fail if we can't read instruction */ 436 } 437 naddr = mdb_dis_ins2str(mdb.m_disasm, t, as, 438 buf, sizeof (buf), addr); 439 if (naddr == addr) 440 break; /* Fail if we didn't advance */ 441 mdb_iob_printf(mdb.m_out, "%lx %x: %s\n", (long)addr, i, buf); 442 } 443 444 mdb_iob_setflags(mdb.m_out, oflags); 445 return (addr); 446 } 447 448 static mdb_tgt_addr_t 449 fmt_binary(mdb_tgt_t *t, mdb_tgt_as_t as, mdb_tgt_addr_t addr, size_t cnt) 450 { 451 uint64_t x; 452 453 while (cnt-- != 0) { 454 if (mdb_tgt_aread(t, as, &x, sizeof (x), addr) == sizeof (x)) { 455 mdb_iob_printf(mdb.m_out, "%-64s", 456 numtostr(x, 2, NTOS_UNSIGNED)); 457 mdb_nv_set_value(mdb.m_rvalue, x); 458 addr += sizeof (x); 459 } else { 460 warn("failed to read data from target"); 461 break; 462 } 463 } 464 return (addr); 465 } 466 467 static mdb_tgt_addr_t 468 fmt_hex64(mdb_tgt_t *t, mdb_tgt_as_t as, mdb_tgt_addr_t addr, size_t cnt) 469 { 470 const char *fmts[] = { "%-16llx", "%-17llx" }; 471 const uint64_t mask = 0xf000000000000000ull; 472 uint64_t x; 473 474 while (cnt-- != 0) { 475 if (mdb_tgt_aread(t, as, &x, sizeof (x), addr) == sizeof (x)) { 476 mdb_iob_printf(mdb.m_out, fmts[(x & mask) != 0], x); 477 mdb_nv_set_value(mdb.m_rvalue, x); 478 addr += sizeof (x); 479 } else { 480 warn("failed to read data from target"); 481 break; 482 } 483 } 484 return (addr); 485 } 486 487 static const mdb_fmt_desc_t fmttab[] = { 488 { FMT_NONE, NULL, NULL, 0 }, /* 0 = NUL */ 489 { FMT_NONE, NULL, NULL, 0 }, /* 1 = SOH */ 490 { FMT_NONE, NULL, NULL, 0 }, /* 2 = STX */ 491 { FMT_NONE, NULL, NULL, 0 }, /* 3 = ETX */ 492 { FMT_NONE, NULL, NULL, 0 }, /* 4 = EOT */ 493 { FMT_NONE, NULL, NULL, 0 }, /* 5 = ENQ */ 494 { FMT_NONE, NULL, NULL, 0 }, /* 6 = ACK */ 495 { FMT_NONE, NULL, NULL, 0 }, /* 7 = BEL */ 496 { FMT_NONE, NULL, NULL, 0 }, /* 8 = BS */ 497 { FMT_NONE, NULL, NULL, 0 }, /* 9 = \t */ 498 { FMT_NONE, NULL, NULL, 0 }, /* 10 = \n */ 499 { FMT_NONE, NULL, NULL, 0 }, /* 11 = VT */ 500 { FMT_NONE, NULL, NULL, 0 }, /* 12 = FF */ 501 { FMT_NONE, NULL, NULL, 0 }, /* 13 = \r */ 502 { FMT_NONE, NULL, NULL, 0 }, /* 14 = SO */ 503 { FMT_NONE, NULL, NULL, 0 }, /* 15 = SI */ 504 { FMT_NONE, NULL, NULL, 0 }, /* 16 = DLE */ 505 { FMT_NONE, NULL, NULL, 0 }, /* 17 = DC1 */ 506 { FMT_NONE, NULL, NULL, 0 }, /* 18 = DC2 */ 507 { FMT_NONE, NULL, NULL, 0 }, /* 19 = DC3 */ 508 { FMT_NONE, NULL, NULL, 0 }, /* 20 = DC4 */ 509 { FMT_NONE, NULL, NULL, 0 }, /* 21 = NAK */ 510 { FMT_NONE, NULL, NULL, 0 }, /* 22 = EYC */ 511 { FMT_NONE, NULL, NULL, 0 }, /* 23 = ETB */ 512 { FMT_NONE, NULL, NULL, 0 }, /* 24 = CAN */ 513 { FMT_NONE, NULL, NULL, 0 }, /* 25 = EM */ 514 { FMT_NONE, NULL, NULL, 0 }, /* 26 = SUB */ 515 { FMT_NONE, NULL, NULL, 0 }, /* 27 = ESC */ 516 { FMT_NONE, NULL, NULL, 0 }, /* 28 = FS */ 517 { FMT_NONE, NULL, NULL, 0 }, /* 29 = GS */ 518 { FMT_NONE, NULL, NULL, 0 }, /* 30 = RS */ 519 { FMT_NONE, NULL, NULL, 0 }, /* 31 = US */ 520 { FMT_NONE, NULL, NULL, 0 }, /* 32 = SPACE */ 521 { FMT_NONE, NULL, NULL, 0 }, /* 33 = ! */ 522 { FMT_NONE, NULL, NULL, 0 }, /* 34 = " */ 523 { FMT_NONE, NULL, NULL, 0 }, /* 35 = # */ 524 { FMT_NONE, NULL, NULL, 0 }, /* 36 = $ */ 525 { FMT_NONE, NULL, NULL, 0 }, /* 37 = % */ 526 { FMT_NONE, NULL, NULL, 0 }, /* 38 = & */ 527 { FMT_NONE, NULL, NULL, 0 }, /* 39 = ' */ 528 { FMT_NONE, NULL, NULL, 0 }, /* 40 = ( */ 529 { FMT_NONE, NULL, NULL, 0 }, /* 41 = ) */ 530 { FMT_NONE, NULL, NULL, 0 }, /* 42 = * */ 531 { FMT_FUNC, FUNCP(fmt_plus), help_plus, 0 }, /* 43 = + */ 532 { FMT_NONE, NULL, NULL, 0 }, /* 44 = , */ 533 { FMT_FUNC, FUNCP(fmt_minus), help_minus, 0 }, /* 45 = - */ 534 { FMT_NONE, NULL, NULL, 0 }, /* 46 = . */ 535 { FMT_NONE, NULL, NULL, 0 }, /* 47 = / */ 536 { FMT_NONE, NULL, NULL, 0 }, /* 48 = 0 */ 537 { FMT_NONE, NULL, NULL, 0 }, /* 49 = 1 */ 538 { FMT_NONE, NULL, NULL, 0 }, /* 50 = 2 */ 539 { FMT_NONE, NULL, NULL, 0 }, /* 51 = 3 */ 540 { FMT_NONE, NULL, NULL, 0 }, /* 52 = 4 */ 541 { FMT_NONE, NULL, NULL, 0 }, /* 53 = 5 */ 542 { FMT_NONE, NULL, NULL, 0 }, /* 54 = 6 */ 543 { FMT_NONE, NULL, NULL, 0 }, /* 55 = 7 */ 544 { FMT_NONE, NULL, NULL, 0 }, /* 56 = 8 */ 545 { FMT_NONE, NULL, NULL, 0 }, /* 57 = 9 */ 546 { FMT_NONE, NULL, NULL, 0 }, /* 58 = : */ 547 { FMT_NONE, NULL, NULL, 0 }, /* 59 = ; */ 548 { FMT_NONE, NULL, NULL, 0 }, /* 60 = < */ 549 { FMT_NONE, NULL, NULL, 0 }, /* 61 = = */ 550 { FMT_NONE, NULL, NULL, 0 }, /* 62 = > */ 551 { FMT_NONE, NULL, NULL, 0 }, /* 63 = ? */ 552 { FMT_NONE, NULL, NULL, 0 }, /* 64 = @ */ 553 { FMT_NONE, NULL, NULL, 0 }, /* 65 = A */ 554 { FMT_PRINTF, "%-8x", NULL, 1 }, /* 66 = B */ 555 { FMT_FUNC, FUNCP(fmt_escchr), help_escchr, 1 }, /* 67 = C */ 556 { FMT_PRINTF, "%-16d", NULL, 4 }, /* 68 = D */ 557 { FMT_PRINTF, "%-16llu", NULL, 8 }, /* 69 = E */ 558 #ifdef _KMDB 559 { FMT_NONE, NULL, NULL, 0 }, /* 70 = F */ 560 #else 561 { FMT_PRINTF, "%g", NULL, sizeof (double), B_TRUE }, /* 70 = F */ 562 #endif 563 { FMT_PRINTF, "%-16llo", NULL, 8 }, /* 71 = G */ 564 { FMT_FUNC, FUNCP(fmt_swapint), help_swapint, 4 }, /* 72 = H */ 565 { FMT_FUNC, FUNCP(fmt_dotinstr), help_dotinstr, 0 }, /* 73 = I */ 566 { FMT_FUNC, FUNCP(fmt_hex64), help_hex64, 8 }, /* 74 = J */ 567 #ifdef _LP64 568 { FMT_FUNC, FUNCP(fmt_hex64), help_uintptr, 8 }, /* 75 = K (J) */ 569 #else 570 { FMT_PRINTF, "%-16x", help_uintptr, 4 }, /* 75 = K (X) */ 571 #endif 572 { FMT_MATCH, NULL, help_match32, 4 }, /* 76 = L */ 573 { FMT_MATCH, NULL, help_match64, 8 }, /* 77 = M */ 574 { FMT_FUNC, FUNCP(fmt_nl), help_nl, SZ_NONE }, /* 78 = N */ 575 { FMT_PRINTF, "%-#16o", NULL, 4 }, /* 79 = O */ 576 { FMT_PRINTF, "%-16a", NULL, sizeof (uintptr_t) }, /* 80 = P */ 577 { FMT_PRINTF, "%-#16q", NULL, 4 }, /* 81 = Q */ 578 { FMT_FUNC, FUNCP(fmt_binary), help_binary, 8 }, /* 82 = R */ 579 { FMT_FUNC, FUNCP(fmt_escstr), help_escstr, 0 }, /* 83 = S */ 580 { FMT_FUNC, FUNCP(fmt_tab), help_tab, SZ_NONE }, /* 84 = T */ 581 { FMT_PRINTF, "%-16u", NULL, 4 }, /* 85 = U */ 582 { FMT_PRINTF, "%-8u", NULL, 1 }, /* 86 = V */ 583 { FMT_PRINTF|FMT_WRITE, "%-16r", NULL, 4 }, /* 87 = W */ 584 { FMT_PRINTF, "%-16x", NULL, 4 }, /* 88 = X */ 585 { FMT_FUNC, FUNCP(fmt_time32), help_time32, 4 }, /* 89 = Y */ 586 { FMT_FUNC|FMT_WRITE, FUNCP(fmt_hex64), help_hex64, 8 }, /* 90 = Z */ 587 { FMT_NONE, NULL, NULL, 0 }, /* 91 = [ */ 588 { FMT_NONE, NULL, NULL, 0 }, /* 92 = \ */ 589 { FMT_NONE, NULL, NULL, 0 }, /* 93 = ] */ 590 { FMT_FUNC, FUNCP(fmt_carat), help_carat, 0 }, /* 94 = ^ */ 591 { FMT_NONE, NULL, NULL, 0 }, /* 95 = _ */ 592 { FMT_NONE, NULL, NULL, 0 }, /* 96 = ` */ 593 { FMT_FUNC, FUNCP(fmt_dot), help_dot, SZ_NONE }, /* 97 = a */ 594 { FMT_PRINTF, "%-#8o", NULL, 1 }, /* 98 = b */ 595 { FMT_PRINTF, "%c", NULL, 1 }, /* 99 = c */ 596 { FMT_PRINTF, "%-8hd", NULL, 2 }, /* 100 = d */ 597 { FMT_PRINTF, "%-16lld", NULL, 8 }, /* 101 = e */ 598 #ifdef _KMDB 599 { FMT_NONE, NULL, NULL, 0 }, /* 102 = f */ 600 #else 601 { FMT_FUNC, FUNCP(fmt_float), help_f, sizeof (float), 602 B_TRUE }, /* 102 = f */ 603 #endif 604 { FMT_PRINTF, "%-16llq", NULL, 8 }, /* 103 = g */ 605 { FMT_FUNC, FUNCP(fmt_swapshort), help_swapshort, 2 }, /* 104 = h */ 606 { FMT_FUNC, FUNCP(fmt_instr), help_instr, 0 }, /* 105 = i */ 607 { FMT_NONE, NULL, NULL, 0 }, /* 106 = j */ 608 { FMT_NONE, NULL, NULL, 0 }, /* 107 = k */ 609 { FMT_MATCH, NULL, help_match16, 2 }, /* 108 = l */ 610 { FMT_NONE, NULL, NULL, 0 }, /* 109 = m */ 611 { FMT_FUNC, FUNCP(fmt_nl), help_nl, SZ_NONE }, /* 110 = n */ 612 { FMT_PRINTF, "%-#8ho", NULL, 2 }, /* 111 = o */ 613 { FMT_PRINTF, "%-16a", NULL, sizeof (uintptr_t) }, /* 112 = p */ 614 { FMT_PRINTF, "%-#8hq", NULL, 2 }, /* 113 = q */ 615 { FMT_FUNC, FUNCP(fmt_ws), help_ws, SZ_NONE }, /* 114 = r */ 616 { FMT_FUNC, FUNCP(fmt_rawstr), help_rawstr, 0 }, /* 115 = s */ 617 { FMT_FUNC, FUNCP(fmt_tab), help_tab, SZ_NONE }, /* 116 = t */ 618 { FMT_PRINTF, "%-8hu", NULL, 2 }, /* 117 = u */ 619 { FMT_FUNC|FMT_WRITE, FUNCP(fmt_sdbyte), help_sdbyte, 1 }, /* 118 = v */ 620 { FMT_PRINTF|FMT_WRITE, "%-8hr", NULL, 2 }, /* 119 = w */ 621 { FMT_PRINTF, "%-8hx", NULL, 2 }, /* 120 = x */ 622 { FMT_FUNC, FUNCP(fmt_time64), help_time64, 8 }, /* 121 = y */ 623 { FMT_WRITE, NULL, help_ctf, 0 }, /* 122 = z */ 624 }; 625 626 mdb_tgt_addr_t 627 mdb_fmt_print(mdb_tgt_t *t, mdb_tgt_as_t as, 628 mdb_tgt_addr_t addr, size_t cnt, char fmt) 629 { 630 const mdb_fmt_desc_t *fp = &fmttab[fmt]; 631 mdb_fmt_func_f *funcp; 632 uintmax_t rvalue; 633 void *buf; 634 635 union { 636 uint64_t i8; 637 uint32_t i4; 638 uint16_t i2; 639 uint8_t i1; 640 double d; 641 } u; 642 643 if (fmt < 0 || fmt > (sizeof (fmttab) / sizeof (fmttab[0]))) { 644 warn("invalid format character -- '%c'\n", fmt); 645 return (addr); 646 } 647 648 switch (FMT_TYPE(fp->f_type)) { 649 case FMT_FUNC: 650 funcp = (mdb_fmt_func_f *)fp->f_ptr; 651 addr = funcp(t, as, addr, cnt); 652 break; 653 654 case FMT_PRINTF: 655 switch (fp->f_size) { 656 case 1: 657 buf = &u.i1; 658 break; 659 case 2: 660 buf = &u.i2; 661 break; 662 case 4: 663 buf = &u.i4; 664 break; 665 case 8: 666 buf = &u.i8; 667 break; 668 default: 669 fail("format %c is defined using illegal size\n", fmt); 670 } 671 672 if (fp->f_float == B_TRUE) { 673 if (fp->f_size != 8) { 674 fail("format %c is using illegal fp size\n", 675 fmt); 676 } 677 678 buf = &u.d; 679 } 680 681 while (cnt-- != 0) { 682 if (mdb_tgt_aread(t, as, buf, fp->f_size, addr) != 683 fp->f_size) { 684 warn("failed to read data from target"); 685 return (addr); 686 } 687 688 switch (fp->f_size) { 689 case 1: 690 mdb_iob_printf(mdb.m_out, fp->f_ptr, u.i1); 691 rvalue = u.i1; 692 break; 693 case 2: 694 mdb_iob_printf(mdb.m_out, fp->f_ptr, u.i2); 695 rvalue = u.i2; 696 break; 697 case 4: 698 mdb_iob_printf(mdb.m_out, fp->f_ptr, u.i4); 699 rvalue = u.i4; 700 break; 701 case 8: 702 if (fp->f_float) { 703 mdb_iob_printf(mdb.m_out, fp->f_ptr, 704 u.d); 705 } else { 706 mdb_iob_printf(mdb.m_out, fp->f_ptr, 707 u.i8); 708 } 709 rvalue = u.i8; 710 break; 711 } 712 713 mdb_nv_set_value(mdb.m_rvalue, rvalue); 714 addr += fp->f_size; 715 } 716 break; 717 718 default: 719 warn("invalid format character -- '%c'\n", fmt); 720 } 721 722 return (addr); 723 } 724 725 /*ARGSUSED*/ 726 int 727 cmd_formats(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 728 { 729 const mdb_fmt_desc_t *fp = &fmttab[0]; 730 int i; 731 const char *write; 732 733 if ((flags & DCMD_ADDRSPEC) || argc != 0) 734 return (DCMD_USAGE); 735 736 for (i = 0; i < (sizeof (fmttab) / sizeof (fmttab[0])); i++, fp++) { 737 if (fp->f_type == FMT_NONE) 738 continue; 739 740 write = (fp->f_type & FMT_WRITE) ? "write " : ""; 741 742 if (fp->f_type & FMT_FUNC) 743 mdb_printf("%c - %s%s", i, write, fp->f_help); 744 else if (fp->f_type & FMT_MATCH) 745 mdb_printf("%c - match %s", i, fp->f_help); 746 else if (fp->f_help != NULL) 747 mdb_printf("%c - %s%s", i, write, fp->f_help); 748 else 749 mdb_printf("%c - %s%s", i, write, 750 mdb_iob_format2str(fp->f_ptr)); 751 752 switch (fp->f_size) { 753 case SZ_NONE: 754 mdb_printf("\n"); 755 break; 756 case 0: 757 mdb_printf(" (variable size)\n"); 758 break; 759 case 1: 760 mdb_printf(" (1 byte)\n"); 761 break; 762 default: 763 mdb_printf(" (%lu bytes)\n", fp->f_size); 764 } 765 } 766 767 return (DCMD_OK); 768 } 769