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, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 
  23 /*
  24  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
  25  * Use is subject to license terms.
  26  */
  27 
  28 /*
  29  * Copyright (c) 2012 by Delphix. All rights reserved.
  30  */
  31 
  32 #include <strings.h>
  33 #include <stdio.h>
  34 
  35 #include <dt_impl.h>
  36 #include <dt_ident.h>
  37 
  38 /*ARGSUSED*/
  39 static void
  40 dt_dis_log(const dtrace_difo_t *dp, const char *name, dif_instr_t in, FILE *fp)
  41 {
  42         (void) fprintf(fp, "%-4s %%r%u, %%r%u, %%r%u", name,
  43             DIF_INSTR_R1(in), DIF_INSTR_R2(in), DIF_INSTR_RD(in));
  44 }
  45 
  46 /*ARGSUSED*/
  47 static void
  48 dt_dis_branch(const dtrace_difo_t *dp, const char *name,
  49         dif_instr_t in, FILE *fp)
  50 {
  51         (void) fprintf(fp, "%-4s %u", name, DIF_INSTR_LABEL(in));
  52 }
  53 
  54 /*ARGSUSED*/
  55 static void
  56 dt_dis_load(const dtrace_difo_t *dp, const char *name, dif_instr_t in, FILE *fp)
  57 {
  58         (void) fprintf(fp, "%-4s [%%r%u], %%r%u", name,
  59             DIF_INSTR_R1(in), DIF_INSTR_RD(in));
  60 }
  61 
  62 /*ARGSUSED*/
  63 static void
  64 dt_dis_store(const dtrace_difo_t *dp, const char *name,
  65         dif_instr_t in, FILE *fp)
  66 {
  67         (void) fprintf(fp, "%-4s %%r%u, [%%r%u]", name,
  68             DIF_INSTR_R1(in), DIF_INSTR_RD(in));
  69 }
  70 
  71 /*ARGSUSED*/
  72 static void
  73 dt_dis_str(const dtrace_difo_t *dp, const char *name, dif_instr_t in, FILE *fp)
  74 {
  75         (void) fprintf(fp, "%s", name);
  76 }
  77 
  78 /*ARGSUSED*/
  79 static void
  80 dt_dis_r1rd(const dtrace_difo_t *dp, const char *name, dif_instr_t in, FILE *fp)
  81 {
  82         (void) fprintf(fp, "%-4s %%r%u, %%r%u", name,
  83             DIF_INSTR_R1(in), DIF_INSTR_RD(in));
  84 }
  85 
  86 /*ARGSUSED*/
  87 static void
  88 dt_dis_cmp(const dtrace_difo_t *dp, const char *name, dif_instr_t in, FILE *fp)
  89 {
  90         (void) fprintf(fp, "%-4s %%r%u, %%r%u", name,
  91             DIF_INSTR_R1(in), DIF_INSTR_R2(in));
  92 }
  93 
  94 /*ARGSUSED*/
  95 static void
  96 dt_dis_tst(const dtrace_difo_t *dp, const char *name, dif_instr_t in, FILE *fp)
  97 {
  98         (void) fprintf(fp, "%-4s %%r%u", name, DIF_INSTR_R1(in));
  99 }
 100 
 101 static const char *
 102 dt_dis_varname(const dtrace_difo_t *dp, uint_t id, uint_t scope)
 103 {
 104         const dtrace_difv_t *dvp = dp->dtdo_vartab;
 105         uint_t i;
 106 
 107         for (i = 0; i < dp->dtdo_varlen; i++, dvp++) {
 108                 if (dvp->dtdv_id == id && dvp->dtdv_scope == scope) {
 109                         if (dvp->dtdv_name < dp->dtdo_strlen)
 110                                 return (dp->dtdo_strtab + dvp->dtdv_name);
 111                         break;
 112                 }
 113         }
 114 
 115         return (NULL);
 116 }
 117 
 118 static uint_t
 119 dt_dis_scope(const char *name)
 120 {
 121         switch (name[2]) {
 122         case 'l': return (DIFV_SCOPE_LOCAL);
 123         case 't': return (DIFV_SCOPE_THREAD);
 124         case 'g': return (DIFV_SCOPE_GLOBAL);
 125         default: return (-1u);
 126         }
 127 }
 128 
 129 static void
 130 dt_dis_lda(const dtrace_difo_t *dp, const char *name, dif_instr_t in, FILE *fp)
 131 {
 132         uint_t var = DIF_INSTR_R1(in);
 133         const char *vname;
 134 
 135         (void) fprintf(fp, "%-4s DT_VAR(%u), %%r%u, %%r%u", name,
 136             var, DIF_INSTR_R2(in), DIF_INSTR_RD(in));
 137 
 138         if ((vname = dt_dis_varname(dp, var, dt_dis_scope(name))) != NULL)
 139                 (void) fprintf(fp, "\t\t! DT_VAR(%u) = \"%s\"", var, vname);
 140 }
 141 
 142 static void
 143 dt_dis_ldv(const dtrace_difo_t *dp, const char *name, dif_instr_t in, FILE *fp)
 144 {
 145         uint_t var = DIF_INSTR_VAR(in);
 146         const char *vname;
 147 
 148         (void) fprintf(fp, "%-4s DT_VAR(%u), %%r%u",
 149             name, var, DIF_INSTR_RD(in));
 150 
 151         if ((vname = dt_dis_varname(dp, var, dt_dis_scope(name))) != NULL)
 152                 (void) fprintf(fp, "\t\t! DT_VAR(%u) = \"%s\"", var, vname);
 153 }
 154 
 155 static void
 156 dt_dis_stv(const dtrace_difo_t *dp, const char *name, dif_instr_t in, FILE *fp)
 157 {
 158         uint_t var = DIF_INSTR_VAR(in);
 159         const char *vname;
 160 
 161         (void) fprintf(fp, "%-4s %%r%u, DT_VAR(%u)",
 162             name, DIF_INSTR_RS(in), var);
 163 
 164         if ((vname = dt_dis_varname(dp, var, dt_dis_scope(name))) != NULL)
 165                 (void) fprintf(fp, "\t\t! DT_VAR(%u) = \"%s\"", var, vname);
 166 }
 167 
 168 static void
 169 dt_dis_setx(const dtrace_difo_t *dp, const char *name, dif_instr_t in, FILE *fp)
 170 {
 171         uint_t intptr = DIF_INSTR_INTEGER(in);
 172 
 173         (void) fprintf(fp, "%-4s DT_INTEGER[%u], %%r%u", name,
 174             intptr, DIF_INSTR_RD(in));
 175 
 176         if (intptr < dp->dtdo_intlen) {
 177                 (void) fprintf(fp, "\t\t! 0x%llx",
 178                     (u_longlong_t)dp->dtdo_inttab[intptr]);
 179         }
 180 }
 181 
 182 static void
 183 dt_dis_sets(const dtrace_difo_t *dp, const char *name, dif_instr_t in, FILE *fp)
 184 {
 185         uint_t strptr = DIF_INSTR_STRING(in);
 186 
 187         (void) fprintf(fp, "%-4s DT_STRING[%u], %%r%u", name,
 188             strptr, DIF_INSTR_RD(in));
 189 
 190         if (strptr < dp->dtdo_strlen)
 191                 (void) fprintf(fp, "\t\t! \"%s\"", dp->dtdo_strtab + strptr);
 192 }
 193 
 194 /*ARGSUSED*/
 195 static void
 196 dt_dis_ret(const dtrace_difo_t *dp, const char *name, dif_instr_t in, FILE *fp)
 197 {
 198         (void) fprintf(fp, "%-4s %%r%u", name, DIF_INSTR_RD(in));
 199 }
 200 
 201 /*ARGSUSED*/
 202 static void
 203 dt_dis_call(const dtrace_difo_t *dp, const char *name, dif_instr_t in, FILE *fp)
 204 {
 205         uint_t subr = DIF_INSTR_SUBR(in);
 206 
 207         (void) fprintf(fp, "%-4s DIF_SUBR(%u), %%r%u\t\t! %s",
 208             name, subr, DIF_INSTR_RD(in), dtrace_subrstr(NULL, subr));
 209 }
 210 
 211 /*ARGSUSED*/
 212 static void
 213 dt_dis_pushts(const dtrace_difo_t *dp,
 214     const char *name, dif_instr_t in, FILE *fp)
 215 {
 216         static const char *const tnames[] = { "D type", "string" };
 217         uint_t type = DIF_INSTR_TYPE(in);
 218         const char *pad;
 219 
 220         if (DIF_INSTR_OP(in) == DIF_OP_PUSHTV) {
 221                 (void) fprintf(fp, "%-4s DT_TYPE(%u), %%r%u",
 222                     name, type, DIF_INSTR_RS(in));
 223                 pad = "\t\t";
 224         } else {
 225                 (void) fprintf(fp, "%-4s DT_TYPE(%u), %%r%u, %%r%u",
 226                     name, type, DIF_INSTR_R2(in), DIF_INSTR_RS(in));
 227                 pad = "\t";
 228         }
 229 
 230         if (type < sizeof (tnames) / sizeof (tnames[0])) {
 231                 (void) fprintf(fp, "%s! DT_TYPE(%u) = %s", pad,
 232                     type, tnames[type]);
 233         }
 234 }
 235 
 236 static void
 237 dt_dis_xlate(const dtrace_difo_t *dp,
 238     const char *name, dif_instr_t in, FILE *fp)
 239 {
 240         uint_t xlr = DIF_INSTR_XLREF(in);
 241 
 242         (void) fprintf(fp, "%-4s DT_XLREF[%u], %%r%u",
 243             name, xlr, DIF_INSTR_RD(in));
 244 
 245         if (xlr < dp->dtdo_xlmlen) {
 246                 (void) fprintf(fp, "\t\t! DT_XLREF[%u] = %u.%s", xlr,
 247                     (uint_t)dp->dtdo_xlmtab[xlr]->dn_membexpr->dn_xlator->dx_id,
 248                     dp->dtdo_xlmtab[xlr]->dn_membname);
 249         }
 250 }
 251 
 252 static char *
 253 dt_dis_typestr(const dtrace_diftype_t *t, char *buf, size_t len)
 254 {
 255         char kind[16], ckind[16];
 256 
 257         switch (t->dtdt_kind) {
 258         case DIF_TYPE_CTF:
 259                 (void) strcpy(kind, "D type");
 260                 break;
 261         case DIF_TYPE_STRING:
 262                 (void) strcpy(kind, "string");
 263                 break;
 264         default:
 265                 (void) snprintf(kind, sizeof (kind), "0x%x", t->dtdt_kind);
 266         }
 267 
 268         switch (t->dtdt_ckind) {
 269         case CTF_K_UNKNOWN:
 270                 (void) strcpy(ckind, "unknown");
 271                 break;
 272         case CTF_K_INTEGER:
 273                 (void) strcpy(ckind, "integer");
 274                 break;
 275         case CTF_K_FLOAT:
 276                 (void) strcpy(ckind, "float");
 277                 break;
 278         case CTF_K_POINTER:
 279                 (void) strcpy(ckind, "pointer");
 280                 break;
 281         case CTF_K_ARRAY:
 282                 (void) strcpy(ckind, "array");
 283                 break;
 284         case CTF_K_FUNCTION:
 285                 (void) strcpy(ckind, "function");
 286                 break;
 287         case CTF_K_STRUCT:
 288                 (void) strcpy(ckind, "struct");
 289                 break;
 290         case CTF_K_UNION:
 291                 (void) strcpy(ckind, "union");
 292                 break;
 293         case CTF_K_ENUM:
 294                 (void) strcpy(ckind, "enum");
 295                 break;
 296         case CTF_K_FORWARD:
 297                 (void) strcpy(ckind, "forward");
 298                 break;
 299         case CTF_K_TYPEDEF:
 300                 (void) strcpy(ckind, "typedef");
 301                 break;
 302         case CTF_K_VOLATILE:
 303                 (void) strcpy(ckind, "volatile");
 304                 break;
 305         case CTF_K_CONST:
 306                 (void) strcpy(ckind, "const");
 307                 break;
 308         case CTF_K_RESTRICT:
 309                 (void) strcpy(ckind, "restrict");
 310                 break;
 311         default:
 312                 (void) snprintf(ckind, sizeof (ckind), "0x%x", t->dtdt_ckind);
 313         }
 314 
 315         if (t->dtdt_flags & DIF_TF_BYREF) {
 316                 (void) snprintf(buf, len, "%s (%s) by ref (size %lu)",
 317                     kind, ckind, (ulong_t)t->dtdt_size);
 318         } else {
 319                 (void) snprintf(buf, len, "%s (%s) (size %lu)",
 320                     kind, ckind, (ulong_t)t->dtdt_size);
 321         }
 322 
 323         return (buf);
 324 }
 325 
 326 static void
 327 dt_dis_rtab(const char *rtag, const dtrace_difo_t *dp, FILE *fp,
 328     const dof_relodesc_t *rp, uint32_t len)
 329 {
 330         (void) fprintf(fp, "\n%-4s %-8s %-8s %s\n",
 331             rtag, "OFFSET", "DATA", "NAME");
 332 
 333         for (; len != 0; len--, rp++) {
 334                 (void) fprintf(fp, "%-4u %-8llu %-8llu %s\n",
 335                     rp->dofr_type, (u_longlong_t)rp->dofr_offset,
 336                     (u_longlong_t)rp->dofr_data,
 337                     &dp->dtdo_strtab[rp->dofr_name]);
 338         }
 339 }
 340 
 341 void
 342 dt_dis(const dtrace_difo_t *dp, FILE *fp)
 343 {
 344         static const struct opent {
 345                 const char *op_name;
 346                 void (*op_func)(const dtrace_difo_t *, const char *,
 347                     dif_instr_t, FILE *);
 348         } optab[] = {
 349                 { "(illegal opcode)", dt_dis_str },
 350                 { "or", dt_dis_log },           /* DIF_OP_OR */
 351                 { "xor", dt_dis_log },          /* DIF_OP_XOR */
 352                 { "and", dt_dis_log },          /* DIF_OP_AND */
 353                 { "sll", dt_dis_log },          /* DIF_OP_SLL */
 354                 { "srl", dt_dis_log },          /* DIF_OP_SRL */
 355                 { "sub", dt_dis_log },          /* DIF_OP_SUB */
 356                 { "add", dt_dis_log },          /* DIF_OP_ADD */
 357                 { "mul", dt_dis_log },          /* DIF_OP_MUL */
 358                 { "sdiv", dt_dis_log },         /* DIF_OP_SDIV */
 359                 { "udiv", dt_dis_log },         /* DIF_OP_UDIV */
 360                 { "srem", dt_dis_log },         /* DIF_OP_SREM */
 361                 { "urem", dt_dis_log },         /* DIF_OP_UREM */
 362                 { "not", dt_dis_r1rd },         /* DIF_OP_NOT */
 363                 { "mov", dt_dis_r1rd },         /* DIF_OP_MOV */
 364                 { "cmp", dt_dis_cmp },          /* DIF_OP_CMP */
 365                 { "tst", dt_dis_tst },          /* DIF_OP_TST */
 366                 { "ba", dt_dis_branch },        /* DIF_OP_BA */
 367                 { "be", dt_dis_branch },        /* DIF_OP_BE */
 368                 { "bne", dt_dis_branch },       /* DIF_OP_BNE */
 369                 { "bg", dt_dis_branch },        /* DIF_OP_BG */
 370                 { "bgu", dt_dis_branch },       /* DIF_OP_BGU */
 371                 { "bge", dt_dis_branch },       /* DIF_OP_BGE */
 372                 { "bgeu", dt_dis_branch },      /* DIF_OP_BGEU */
 373                 { "bl", dt_dis_branch },        /* DIF_OP_BL */
 374                 { "blu", dt_dis_branch },       /* DIF_OP_BLU */
 375                 { "ble", dt_dis_branch },       /* DIF_OP_BLE */
 376                 { "bleu", dt_dis_branch },      /* DIF_OP_BLEU */
 377                 { "ldsb", dt_dis_load },        /* DIF_OP_LDSB */
 378                 { "ldsh", dt_dis_load },        /* DIF_OP_LDSH */
 379                 { "ldsw", dt_dis_load },        /* DIF_OP_LDSW */
 380                 { "ldub", dt_dis_load },        /* DIF_OP_LDUB */
 381                 { "lduh", dt_dis_load },        /* DIF_OP_LDUH */
 382                 { "lduw", dt_dis_load },        /* DIF_OP_LDUW */
 383                 { "ldx", dt_dis_load },         /* DIF_OP_LDX */
 384                 { "ret", dt_dis_ret },          /* DIF_OP_RET */
 385                 { "nop", dt_dis_str },          /* DIF_OP_NOP */
 386                 { "setx", dt_dis_setx },        /* DIF_OP_SETX */
 387                 { "sets", dt_dis_sets },        /* DIF_OP_SETS */
 388                 { "scmp", dt_dis_cmp },         /* DIF_OP_SCMP */
 389                 { "ldga", dt_dis_lda },         /* DIF_OP_LDGA */
 390                 { "ldgs", dt_dis_ldv },         /* DIF_OP_LDGS */
 391                 { "stgs", dt_dis_stv },         /* DIF_OP_STGS */
 392                 { "ldta", dt_dis_lda },         /* DIF_OP_LDTA */
 393                 { "ldts", dt_dis_ldv },         /* DIF_OP_LDTS */
 394                 { "stts", dt_dis_stv },         /* DIF_OP_STTS */
 395                 { "sra", dt_dis_log },          /* DIF_OP_SRA */
 396                 { "call", dt_dis_call },        /* DIF_OP_CALL */
 397                 { "pushtr", dt_dis_pushts },    /* DIF_OP_PUSHTR */
 398                 { "pushtv", dt_dis_pushts },    /* DIF_OP_PUSHTV */
 399                 { "popts", dt_dis_str },        /* DIF_OP_POPTS */
 400                 { "flushts", dt_dis_str },      /* DIF_OP_FLUSHTS */
 401                 { "ldgaa", dt_dis_ldv },        /* DIF_OP_LDGAA */
 402                 { "ldtaa", dt_dis_ldv },        /* DIF_OP_LDTAA */
 403                 { "stgaa", dt_dis_stv },        /* DIF_OP_STGAA */
 404                 { "sttaa", dt_dis_stv },        /* DIF_OP_STTAA */
 405                 { "ldls", dt_dis_ldv },         /* DIF_OP_LDLS */
 406                 { "stls", dt_dis_stv },         /* DIF_OP_STLS */
 407                 { "allocs", dt_dis_r1rd },      /* DIF_OP_ALLOCS */
 408                 { "copys", dt_dis_log },        /* DIF_OP_COPYS */
 409                 { "stb", dt_dis_store },        /* DIF_OP_STB */
 410                 { "sth", dt_dis_store },        /* DIF_OP_STH */
 411                 { "stw", dt_dis_store },        /* DIF_OP_STW */
 412                 { "stx", dt_dis_store },        /* DIF_OP_STX */
 413                 { "uldsb", dt_dis_load },       /* DIF_OP_ULDSB */
 414                 { "uldsh", dt_dis_load },       /* DIF_OP_ULDSH */
 415                 { "uldsw", dt_dis_load },       /* DIF_OP_ULDSW */
 416                 { "uldub", dt_dis_load },       /* DIF_OP_ULDUB */
 417                 { "ulduh", dt_dis_load },       /* DIF_OP_ULDUH */
 418                 { "ulduw", dt_dis_load },       /* DIF_OP_ULDUW */
 419                 { "uldx", dt_dis_load },        /* DIF_OP_ULDX */
 420                 { "rldsb", dt_dis_load },       /* DIF_OP_RLDSB */
 421                 { "rldsh", dt_dis_load },       /* DIF_OP_RLDSH */
 422                 { "rldsw", dt_dis_load },       /* DIF_OP_RLDSW */
 423                 { "rldub", dt_dis_load },       /* DIF_OP_RLDUB */
 424                 { "rlduh", dt_dis_load },       /* DIF_OP_RLDUH */
 425                 { "rlduw", dt_dis_load },       /* DIF_OP_RLDUW */
 426                 { "rldx", dt_dis_load },        /* DIF_OP_RLDX */
 427                 { "xlate", dt_dis_xlate },      /* DIF_OP_XLATE */
 428                 { "xlarg", dt_dis_xlate },      /* DIF_OP_XLARG */
 429         };
 430 
 431         const struct opent *op;
 432         ulong_t i = 0;
 433         char type[DT_TYPE_NAMELEN];
 434 
 435         (void) fprintf(fp, "\nDIFO 0x%p returns %s\n", (void *)dp,
 436             dt_dis_typestr(&dp->dtdo_rtype, type, sizeof (type)));
 437 
 438         (void) fprintf(fp, "%-3s %-8s    %s\n",
 439             "OFF", "OPCODE", "INSTRUCTION");
 440 
 441         for (i = 0; i < dp->dtdo_len; i++) {
 442                 dif_instr_t instr = dp->dtdo_buf[i];
 443                 dif_instr_t opcode = DIF_INSTR_OP(instr);
 444 
 445                 if (opcode >= sizeof (optab) / sizeof (optab[0]))
 446                         opcode = 0; /* force invalid opcode message */
 447 
 448                 op = &optab[opcode];
 449                 (void) fprintf(fp, "%02lu: %08x    ", i, instr);
 450                 op->op_func(dp, op->op_name, instr, fp);
 451                 (void) fprintf(fp, "\n");
 452         }
 453 
 454         if (dp->dtdo_varlen != 0) {
 455                 (void) fprintf(fp, "\n%-16s %-4s %-3s %-3s %-4s %s\n",
 456                     "NAME", "ID", "KND", "SCP", "FLAG", "TYPE");
 457         }
 458 
 459         for (i = 0; i < dp->dtdo_varlen; i++) {
 460                 dtrace_difv_t *v = &dp->dtdo_vartab[i];
 461                 char kind[4], scope[4], flags[16] = { 0 };
 462 
 463                 switch (v->dtdv_kind) {
 464                 case DIFV_KIND_ARRAY:
 465                         (void) strcpy(kind, "arr");
 466                         break;
 467                 case DIFV_KIND_SCALAR:
 468                         (void) strcpy(kind, "scl");
 469                         break;
 470                 default:
 471                         (void) snprintf(kind, sizeof (kind),
 472                             "%u", v->dtdv_kind);
 473                 }
 474 
 475                 switch (v->dtdv_scope) {
 476                 case DIFV_SCOPE_GLOBAL:
 477                         (void) strcpy(scope, "glb");
 478                         break;
 479                 case DIFV_SCOPE_THREAD:
 480                         (void) strcpy(scope, "tls");
 481                         break;
 482                 case DIFV_SCOPE_LOCAL:
 483                         (void) strcpy(scope, "loc");
 484                         break;
 485                 default:
 486                         (void) snprintf(scope, sizeof (scope),
 487                             "%u", v->dtdv_scope);
 488                 }
 489 
 490                 if (v->dtdv_flags & ~(DIFV_F_REF | DIFV_F_MOD)) {
 491                         (void) snprintf(flags, sizeof (flags), "/0x%x",
 492                             v->dtdv_flags & ~(DIFV_F_REF | DIFV_F_MOD));
 493                 }
 494 
 495                 if (v->dtdv_flags & DIFV_F_REF)
 496                         (void) strcat(flags, "/r");
 497                 if (v->dtdv_flags & DIFV_F_MOD)
 498                         (void) strcat(flags, "/w");
 499 
 500                 (void) fprintf(fp, "%-16s %-4x %-3s %-3s %-4s %s\n",
 501                     &dp->dtdo_strtab[v->dtdv_name],
 502                     v->dtdv_id, kind, scope, flags + 1,
 503                     dt_dis_typestr(&v->dtdv_type, type, sizeof (type)));
 504         }
 505 
 506         if (dp->dtdo_xlmlen != 0) {
 507                 (void) fprintf(fp, "\n%-4s %-3s %-12s %s\n",
 508                     "XLID", "ARG", "MEMBER", "TYPE");
 509         }
 510 
 511         for (i = 0; i < dp->dtdo_xlmlen; i++) {
 512                 dt_node_t *dnp = dp->dtdo_xlmtab[i];
 513                 dt_xlator_t *dxp = dnp->dn_membexpr->dn_xlator;
 514                 (void) fprintf(fp, "%-4u %-3d %-12s %s\n",
 515                     (uint_t)dxp->dx_id, dxp->dx_arg, dnp->dn_membname,
 516                     dt_node_type_name(dnp, type, sizeof (type)));
 517         }
 518 
 519         if (dp->dtdo_krelen != 0)
 520                 dt_dis_rtab("KREL", dp, fp, dp->dtdo_kreltab, dp->dtdo_krelen);
 521 
 522         if (dp->dtdo_urelen != 0)
 523                 dt_dis_rtab("UREL", dp, fp, dp->dtdo_ureltab, dp->dtdo_urelen);
 524 }