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 (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright (c) 2013, Joyent, Inc. All rights reserved. 25 * Copyright (c) 2012 by Delphix. All rights reserved. 26 */ 27 28 #include <sys/types.h> 29 #ifdef illumos 30 #include <sys/modctl.h> 31 #include <sys/systeminfo.h> 32 #else 33 #include <sys/param.h> 34 #include <sys/module.h> 35 #include <sys/linker.h> 36 #endif 37 #include <sys/resource.h> 38 39 #include <libelf.h> 40 #include <strings.h> 41 #ifdef illumos 42 #include <alloca.h> 43 #endif 44 #include <limits.h> 45 #include <unistd.h> 46 #include <stdlib.h> 47 #include <stdio.h> 48 #include <fcntl.h> 49 #include <errno.h> 50 #include <assert.h> 51 52 #define _POSIX_PTHREAD_SEMANTICS 53 #include <dirent.h> 54 #undef _POSIX_PTHREAD_SEMANTICS 55 56 #include <dt_impl.h> 57 #include <dt_program.h> 58 #include <dt_module.h> 59 #include <dt_printf.h> 60 #include <dt_string.h> 61 #include <dt_provider.h> 62 #ifndef illumos 63 #include <sys/sysctl.h> 64 #include <string.h> 65 #endif 66 #if defined(__i386__) 67 #include <ieeefp.h> 68 #endif 69 70 /* 71 * Stability and versioning definitions. These #defines are used in the tables 72 * of identifiers below to fill in the attribute and version fields associated 73 * with each identifier. The DT_ATTR_* macros are a convenience to permit more 74 * concise declarations of common attributes such as Stable/Stable/Common. The 75 * DT_VERS_* macros declare the encoded integer values of all versions used so 76 * far. DT_VERS_LATEST must correspond to the latest version value among all 77 * versions exported by the D compiler. DT_VERS_STRING must be an ASCII string 78 * that contains DT_VERS_LATEST within it along with any suffixes (e.g. Beta). 79 * You must update DT_VERS_LATEST and DT_VERS_STRING when adding a new version, 80 * and then add the new version to the _dtrace_versions[] array declared below. 81 * Refer to the Solaris Dynamic Tracing Guide Stability and Versioning chapters 82 * respectively for an explanation of these DTrace features and their values. 83 * 84 * NOTE: Although the DTrace versioning scheme supports the labeling and 85 * introduction of incompatible changes (e.g. dropping an interface in a 86 * major release), the libdtrace code does not currently support this. 87 * All versions are assumed to strictly inherit from one another. If 88 * we ever need to provide divergent interfaces, this will need work. 89 */ 90 #define DT_ATTR_STABCMN { DTRACE_STABILITY_STABLE, \ 91 DTRACE_STABILITY_STABLE, DTRACE_CLASS_COMMON } 92 93 #define DT_ATTR_EVOLCMN { DTRACE_STABILITY_EVOLVING, \ 94 DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_COMMON \ 95 } 96 97 /* 98 * The version number should be increased for every customer visible release 99 * of DTrace. The major number should be incremented when a fundamental 100 * change has been made that would affect all consumers, and would reflect 101 * sweeping changes to DTrace or the D language. The minor number should be 102 * incremented when a change is introduced that could break scripts that had 103 * previously worked; for example, adding a new built-in variable could break 104 * a script which was already using that identifier. The micro number should 105 * be changed when introducing functionality changes or major bug fixes that 106 * do not affect backward compatibility -- this is merely to make capabilities 107 * easily determined from the version number. Minor bugs do not require any 108 * modification to the version number. 109 */ 110 #define DT_VERS_1_0 DT_VERSION_NUMBER(1, 0, 0) 111 #define DT_VERS_1_1 DT_VERSION_NUMBER(1, 1, 0) 112 #define DT_VERS_1_2 DT_VERSION_NUMBER(1, 2, 0) 113 #define DT_VERS_1_2_1 DT_VERSION_NUMBER(1, 2, 1) 114 #define DT_VERS_1_2_2 DT_VERSION_NUMBER(1, 2, 2) 115 #define DT_VERS_1_3 DT_VERSION_NUMBER(1, 3, 0) 116 #define DT_VERS_1_4 DT_VERSION_NUMBER(1, 4, 0) 117 #define DT_VERS_1_4_1 DT_VERSION_NUMBER(1, 4, 1) 118 #define DT_VERS_1_5 DT_VERSION_NUMBER(1, 5, 0) 119 #define DT_VERS_1_6 DT_VERSION_NUMBER(1, 6, 0) 120 #define DT_VERS_1_6_1 DT_VERSION_NUMBER(1, 6, 1) 121 #define DT_VERS_1_6_2 DT_VERSION_NUMBER(1, 6, 2) 122 #define DT_VERS_1_6_3 DT_VERSION_NUMBER(1, 6, 3) 123 #define DT_VERS_1_7 DT_VERSION_NUMBER(1, 7, 0) 124 #define DT_VERS_1_7_1 DT_VERSION_NUMBER(1, 7, 1) 125 #define DT_VERS_1_8 DT_VERSION_NUMBER(1, 8, 0) 126 #define DT_VERS_1_8_1 DT_VERSION_NUMBER(1, 8, 1) 127 #define DT_VERS_1_9 DT_VERSION_NUMBER(1, 9, 0) 128 #define DT_VERS_1_9_1 DT_VERSION_NUMBER(1, 9, 1) 129 #define DT_VERS_1_10 DT_VERSION_NUMBER(1, 10, 0) 130 #define DT_VERS_1_11 DT_VERSION_NUMBER(1, 11, 0) 131 #define DT_VERS_1_12 DT_VERSION_NUMBER(1, 12, 0) 132 #define DT_VERS_1_12_1 DT_VERSION_NUMBER(1, 12, 1) 133 #define DT_VERS_LATEST DT_VERS_1_12_1 134 #define DT_VERS_STRING "Sun D 1.12.1" 135 136 const dt_version_t _dtrace_versions[] = { 137 DT_VERS_1_0, /* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */ 138 DT_VERS_1_1, /* D API 1.1.0 Solaris Express 6/05 */ 139 DT_VERS_1_2, /* D API 1.2.0 Solaris 10 Update 1 */ 140 DT_VERS_1_2_1, /* D API 1.2.1 Solaris Express 4/06 */ 141 DT_VERS_1_2_2, /* D API 1.2.2 Solaris Express 6/06 */ 142 DT_VERS_1_3, /* D API 1.3 Solaris Express 10/06 */ 143 DT_VERS_1_4, /* D API 1.4 Solaris Express 2/07 */ 144 DT_VERS_1_4_1, /* D API 1.4.1 Solaris Express 4/07 */ 145 DT_VERS_1_5, /* D API 1.5 Solaris Express 7/07 */ 146 DT_VERS_1_6, /* D API 1.6 */ 147 DT_VERS_1_6_1, /* D API 1.6.1 */ 148 DT_VERS_1_6_2, /* D API 1.6.2 */ 149 DT_VERS_1_6_3, /* D API 1.6.3 */ 150 DT_VERS_1_7, /* D API 1.7 */ 151 DT_VERS_1_7_1, /* D API 1.7.1 */ 152 DT_VERS_1_8, /* D API 1.8 */ 153 DT_VERS_1_8_1, /* D API 1.8.1 */ 154 DT_VERS_1_9, /* D API 1.9 */ 155 DT_VERS_1_9_1, /* D API 1.9.1 */ 156 DT_VERS_1_10, /* D API 1.10 */ 157 DT_VERS_1_11, /* D API 1.11 */ 158 DT_VERS_1_12, /* D API 1.12 */ 159 DT_VERS_1_12_1, /* D API 1.12.1 */ 160 0 161 }; 162 163 /* 164 * Global variables that are formatted on FreeBSD based on the kernel file name. 165 */ 166 #ifndef illumos 167 static char curthread_str[MAXPATHLEN]; 168 static char intmtx_str[MAXPATHLEN]; 169 static char threadmtx_str[MAXPATHLEN]; 170 static char rwlock_str[MAXPATHLEN]; 171 static char sxlock_str[MAXPATHLEN]; 172 #endif 173 174 /* 175 * Table of global identifiers. This is used to populate the global identifier 176 * hash when a new dtrace client open occurs. For more info see dt_ident.h. 177 * The global identifiers that represent functions use the dt_idops_func ops 178 * and specify the private data pointer as a prototype string which is parsed 179 * when the identifier is first encountered. These prototypes look like ANSI 180 * C function prototypes except that the special symbol "@" can be used as a 181 * wildcard to represent a single parameter of any type (i.e. any dt_node_t). 182 * The standard "..." notation can also be used to represent varargs. An empty 183 * parameter list is taken to mean void (that is, no arguments are permitted). 184 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional 185 * argument. 186 */ 187 static const dt_ident_t _dtrace_globals[] = { 188 { "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0, 189 &dt_idops_func, "void *(size_t)" }, 190 { "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0, 191 &dt_idops_type, "int64_t" }, 192 { "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0, 193 &dt_idops_type, "int64_t" }, 194 { "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0, 195 &dt_idops_type, "int64_t" }, 196 { "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0, 197 &dt_idops_type, "int64_t" }, 198 { "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0, 199 &dt_idops_type, "int64_t" }, 200 { "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0, 201 &dt_idops_type, "int64_t" }, 202 { "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0, 203 &dt_idops_type, "int64_t" }, 204 { "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0, 205 &dt_idops_type, "int64_t" }, 206 { "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0, 207 &dt_idops_type, "int64_t" }, 208 { "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0, 209 &dt_idops_type, "int64_t" }, 210 { "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0, 211 &dt_idops_args, NULL }, 212 { "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0, 213 &dt_idops_func, "void(@)" }, 214 { "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0, 215 &dt_idops_func, "string(const char *)" }, 216 { "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0, 217 &dt_idops_func, "void(void *, void *, size_t)" }, 218 { "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT, 219 DT_ATTR_STABCMN, DT_VERS_1_0, 220 &dt_idops_func, "void()" }, 221 { "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0, 222 &dt_idops_type, "uintptr_t" }, 223 { "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0, 224 &dt_idops_func, "void(int)" }, 225 { "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN, 226 DT_VERS_1_0, &dt_idops_func, "string(const char *)" }, 227 { "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0, 228 &dt_idops_func, "void(...)" }, 229 { "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0, 230 &dt_idops_func, "void(int)" }, 231 { "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0, 232 &dt_idops_func, "void *(uintptr_t, size_t)" }, 233 { "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR, 234 DT_ATTR_STABCMN, DT_VERS_1_0, 235 &dt_idops_func, "string(uintptr_t, [size_t])" }, 236 { "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN, 237 DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" }, 238 { "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0, 239 &dt_idops_func, "void(void *, uintptr_t, size_t)" }, 240 { "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR, 241 DT_ATTR_STABCMN, DT_VERS_1_0, 242 &dt_idops_func, "void(char *, uintptr_t, size_t)" }, 243 { "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0, 244 &dt_idops_func, "void()" }, 245 { "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD, 246 { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE, 247 DTRACE_CLASS_COMMON }, DT_VERS_1_0, 248 #ifdef illumos 249 &dt_idops_type, "genunix`kthread_t *" }, 250 #else 251 &dt_idops_type, curthread_str }, 252 #endif 253 { "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME, 254 DT_ATTR_EVOLCMN, DT_VERS_1_0, 255 &dt_idops_func, "string(void *, int64_t)" }, 256 { "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN, 257 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 258 { "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0, 259 &dt_idops_func, "string(const char *)" }, 260 { "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0, 261 &dt_idops_func, "void(int)" }, 262 { "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0, 263 &dt_idops_type, "uint_t" }, 264 { "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0, 265 &dt_idops_type, "int" }, 266 { "execargs", DT_IDENT_SCALAR, 0, DIF_VAR_EXECARGS, 267 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 268 { "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME, 269 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 270 { "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0, 271 &dt_idops_func, "void(int)" }, 272 { "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN, 273 DT_VERS_1_1, &dt_idops_func, "void(@, ...)" }, 274 { "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN, 275 DT_VERS_1_0, &dt_idops_func, "void()" }, 276 { "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 277 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 278 { "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR, 279 DT_ATTR_EVOLCMN, DT_VERS_1_0, 280 &dt_idops_func, "genunix`major_t(genunix`dev_t)" }, 281 { "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR, 282 DT_ATTR_EVOLCMN, DT_VERS_1_0, 283 &dt_idops_func, "genunix`minor_t(genunix`dev_t)" }, 284 { "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 285 &dt_idops_func, "uint32_t(uint32_t)" }, 286 { "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 287 &dt_idops_func, "uint64_t(uint64_t)" }, 288 { "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 289 &dt_idops_func, "uint16_t(uint16_t)" }, 290 { "getf", DT_IDENT_FUNC, 0, DIF_SUBR_GETF, DT_ATTR_STABCMN, DT_VERS_1_10, 291 &dt_idops_func, "file_t *(int)" }, 292 { "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0, 293 &dt_idops_type, "gid_t" }, 294 { "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0, 295 &dt_idops_type, "uint_t" }, 296 { "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 297 &dt_idops_func, "int(const char *, const char *, [int])" }, 298 { "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN, 299 #ifdef illumos 300 DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" }, 301 #else 302 DT_VERS_1_5, &dt_idops_func, "string(in_addr_t *)" }, 303 #endif 304 { "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN, 305 #ifdef illumos 306 DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" }, 307 #else 308 DT_VERS_1_5, &dt_idops_func, "string(struct in6_addr *)" }, 309 #endif 310 { "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN, 311 DT_VERS_1_5, &dt_idops_func, "string(int, void *)" }, 312 { "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0, 313 &dt_idops_type, "uint_t" }, 314 { "json", DT_IDENT_FUNC, 0, DIF_SUBR_JSON, DT_ATTR_STABCMN, DT_VERS_1_11, 315 &dt_idops_func, "string(const char *, const char *)" }, 316 { "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 317 &dt_idops_func, "stack(...)" }, 318 { "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0, 319 &dt_idops_func, "string(int64_t, [int])" }, 320 { "llquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LLQUANTIZE, DT_ATTR_STABCMN, 321 DT_VERS_1_7, &dt_idops_func, 322 "void(@, int32_t, int32_t, int32_t, int32_t, ...)" }, 323 { "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE, 324 DT_ATTR_STABCMN, DT_VERS_1_0, 325 &dt_idops_func, "void(@, int32_t, int32_t, ...)" }, 326 { "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0, 327 &dt_idops_func, "void(@)" }, 328 { "memref", DT_IDENT_FUNC, 0, DIF_SUBR_MEMREF, DT_ATTR_STABCMN, DT_VERS_1_1, 329 &dt_idops_func, "uintptr_t *(void *, size_t)" }, 330 #ifndef illumos 331 { "memstr", DT_IDENT_FUNC, 0, DIF_SUBR_MEMSTR, DT_ATTR_STABCMN, DT_VERS_1_0, 332 &dt_idops_func, "string(void *, char, size_t)" }, 333 #endif 334 { "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0, 335 &dt_idops_func, "void(@)" }, 336 { "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN, 337 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 338 { "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE, 339 DT_ATTR_STABCMN, DT_VERS_1_0, 340 &dt_idops_func, "size_t(mblk_t *)" }, 341 { "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE, 342 DT_ATTR_STABCMN, DT_VERS_1_0, 343 &dt_idops_func, "size_t(mblk_t *)" }, 344 #ifdef illumos 345 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 346 DT_ATTR_EVOLCMN, DT_VERS_1_0, 347 &dt_idops_func, "int(genunix`kmutex_t *)" }, 348 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 349 DT_ATTR_EVOLCMN, DT_VERS_1_0, 350 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" }, 351 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 352 DT_ATTR_EVOLCMN, DT_VERS_1_0, 353 &dt_idops_func, "int(genunix`kmutex_t *)" }, 354 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 355 DT_ATTR_EVOLCMN, DT_VERS_1_0, 356 &dt_idops_func, "int(genunix`kmutex_t *)" }, 357 #else 358 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 359 DT_ATTR_EVOLCMN, DT_VERS_1_0, 360 &dt_idops_func, intmtx_str }, 361 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 362 DT_ATTR_EVOLCMN, DT_VERS_1_0, 363 &dt_idops_func, threadmtx_str }, 364 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 365 DT_ATTR_EVOLCMN, DT_VERS_1_0, 366 &dt_idops_func, intmtx_str }, 367 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 368 DT_ATTR_EVOLCMN, DT_VERS_1_0, 369 &dt_idops_func, intmtx_str }, 370 #endif 371 { "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 372 &dt_idops_func, "uint32_t(uint32_t)" }, 373 { "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 374 &dt_idops_func, "uint64_t(uint64_t)" }, 375 { "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 376 &dt_idops_func, "uint16_t(uint16_t)" }, 377 { "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN, 378 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 379 { "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0, 380 &dt_idops_func, "void()" }, 381 { "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0, 382 &dt_idops_type, "pid_t" }, 383 { "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0, 384 &dt_idops_type, "pid_t" }, 385 { "print", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINT, DT_ATTR_STABCMN, DT_VERS_1_9, 386 &dt_idops_func, "void(@)" }, 387 { "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0, 388 &dt_idops_func, "void(@, ...)" }, 389 { "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0, 390 &dt_idops_func, "void(@, ...)" }, 391 { "printm", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTM, DT_ATTR_STABCMN, DT_VERS_1_0, 392 &dt_idops_func, "void(size_t, uintptr_t *)" }, 393 { "printt", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTT, DT_ATTR_STABCMN, DT_VERS_1_0, 394 &dt_idops_func, "void(size_t, uintptr_t *)" }, 395 { "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC, 396 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 397 { "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD, 398 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 399 { "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME, 400 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 401 { "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV, 402 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 403 { "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF, 404 DT_ATTR_STABCMN, DT_VERS_1_0, 405 &dt_idops_func, "int(pid_t)" }, 406 { "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE, 407 DT_ATTR_STABCMN, DT_VERS_1_0, 408 &dt_idops_func, "void(@, ...)" }, 409 { "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0, 410 &dt_idops_func, "void(int)" }, 411 { "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0, 412 &dt_idops_func, "int()" }, 413 { "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 414 &dt_idops_func, "int(const char *, const char *, [int])" }, 415 #ifdef illumos 416 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 417 DT_ATTR_EVOLCMN, DT_VERS_1_0, 418 &dt_idops_func, "int(genunix`krwlock_t *)" }, 419 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 420 DT_ATTR_EVOLCMN, DT_VERS_1_0, 421 &dt_idops_func, "int(genunix`krwlock_t *)" }, 422 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 423 DT_ATTR_EVOLCMN, DT_VERS_1_0, 424 &dt_idops_func, "int(genunix`krwlock_t *)" }, 425 #else 426 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 427 DT_ATTR_EVOLCMN, DT_VERS_1_0, 428 &dt_idops_func, rwlock_str }, 429 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 430 DT_ATTR_EVOLCMN, DT_VERS_1_0, 431 &dt_idops_func, rwlock_str }, 432 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 433 DT_ATTR_EVOLCMN, DT_VERS_1_0, 434 &dt_idops_func, rwlock_str }, 435 #endif 436 { "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 437 &dt_idops_type, "void" }, 438 { "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN, 439 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" }, 440 { "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE, 441 DT_ATTR_STABCMN, DT_VERS_1_0, 442 &dt_idops_func, "void(int)" }, 443 { "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION, 444 DT_ATTR_STABCMN, DT_VERS_1_0, 445 &dt_idops_func, "int()" }, 446 { "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0, 447 &dt_idops_func, "stack(...)" }, 448 { "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH, 449 DT_ATTR_STABCMN, DT_VERS_1_0, 450 &dt_idops_type, "uint32_t" }, 451 { "stddev", DT_IDENT_AGGFUNC, 0, DTRACEAGG_STDDEV, DT_ATTR_STABCMN, 452 DT_VERS_1_6, &dt_idops_func, "void(@)" }, 453 { "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0, 454 &dt_idops_func, "void()" }, 455 { "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 456 &dt_idops_func, "string(const char *, char)" }, 457 { "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0, 458 &dt_idops_func, "size_t(const char *)" }, 459 { "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0, 460 &dt_idops_func, "string(const char *, const char *)" }, 461 { "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 462 &dt_idops_func, "string(const char *, char)" }, 463 { "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 464 &dt_idops_func, "string(const char *, const char *)" }, 465 { "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1, 466 &dt_idops_func, "string(const char *, const char *)" }, 467 { "strtoll", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOLL, DT_ATTR_STABCMN, DT_VERS_1_11, 468 &dt_idops_func, "int64_t(const char *, [int])" }, 469 { "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 470 &dt_idops_func, "string(const char *, int, [int])" }, 471 { "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0, 472 &dt_idops_func, "void(@)" }, 473 #ifndef illumos 474 { "sx_isexclusive", DT_IDENT_FUNC, 0, DIF_SUBR_SX_ISEXCLUSIVE, 475 DT_ATTR_EVOLCMN, DT_VERS_1_0, 476 &dt_idops_func, sxlock_str }, 477 { "sx_shared_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_SHARED_HELD, 478 DT_ATTR_EVOLCMN, DT_VERS_1_0, 479 &dt_idops_func, sxlock_str }, 480 { "sx_exclusive_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_EXCLUSIVE_HELD, 481 DT_ATTR_EVOLCMN, DT_VERS_1_0, 482 &dt_idops_func, sxlock_str }, 483 #endif 484 { "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 485 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 486 { "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0, 487 &dt_idops_func, "void(@, ...)" }, 488 { "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 489 &dt_idops_type, "void" }, 490 { "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0, 491 &dt_idops_type, "id_t" }, 492 { "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP, 493 DT_ATTR_STABCMN, DT_VERS_1_0, 494 &dt_idops_type, "uint64_t" }, 495 { "tolower", DT_IDENT_FUNC, 0, DIF_SUBR_TOLOWER, DT_ATTR_STABCMN, DT_VERS_1_8, 496 &dt_idops_func, "string(const char *)" }, 497 { "toupper", DT_IDENT_FUNC, 0, DIF_SUBR_TOUPPER, DT_ATTR_STABCMN, DT_VERS_1_8, 498 &dt_idops_func, "string(const char *)" }, 499 { "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0, 500 &dt_idops_func, "void(@)" }, 501 { "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM, 502 DT_ATTR_STABCMN, DT_VERS_1_0, 503 &dt_idops_func, "void(@, size_t, ...)" }, 504 { "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN, 505 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 506 { "typeref", DT_IDENT_FUNC, 0, DIF_SUBR_TYPEREF, DT_ATTR_STABCMN, DT_VERS_1_1, 507 &dt_idops_func, "uintptr_t *(void *, size_t, string, size_t)" }, 508 { "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN, 509 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 510 { "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN, 511 DT_VERS_1_2, &dt_idops_type, "uint64_t" }, 512 { "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 513 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 514 { "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0, 515 &dt_idops_type, "uid_t" }, 516 { "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN, 517 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 518 { "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0, 519 &dt_idops_regs, NULL }, 520 { "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 521 &dt_idops_func, "stack(...)" }, 522 { "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH, 523 DT_ATTR_STABCMN, DT_VERS_1_2, 524 &dt_idops_type, "uint32_t" }, 525 { "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 526 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 527 { "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP, 528 DT_ATTR_STABCMN, DT_VERS_1_0, 529 &dt_idops_type, "uint64_t" }, 530 { "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP, 531 DT_ATTR_STABCMN, DT_VERS_1_0, 532 &dt_idops_type, "int64_t" }, 533 #ifdef illumos 534 { "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME, 535 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 536 #endif 537 538 #ifndef illumos 539 { "cpu", DT_IDENT_SCALAR, 0, DIF_VAR_CPU, 540 DT_ATTR_STABCMN, DT_VERS_1_6_3, &dt_idops_type, "int" }, 541 #endif 542 543 { NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL } 544 }; 545 546 /* 547 * Tables of ILP32 intrinsic integer and floating-point type templates to use 548 * to populate the dynamic "C" CTF type container. 549 */ 550 static const dt_intrinsic_t _dtrace_intrinsics_32[] = { 551 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 552 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 553 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 554 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 555 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 556 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 557 { "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 558 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 559 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 560 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 561 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 562 { "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 563 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 564 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 565 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 566 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 567 { "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER }, 568 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 569 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 570 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 571 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 572 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 573 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 574 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 575 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 576 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 577 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 578 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 579 { NULL, { 0, 0, 0 }, 0 } 580 }; 581 582 /* 583 * Tables of LP64 intrinsic integer and floating-point type templates to use 584 * to populate the dynamic "C" CTF type container. 585 */ 586 static const dt_intrinsic_t _dtrace_intrinsics_64[] = { 587 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 588 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 589 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 590 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 591 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 592 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 593 { "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 594 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 595 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 596 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 597 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 598 { "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 599 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 600 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 601 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 602 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 603 { "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER }, 604 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 605 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 606 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 607 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 608 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 609 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 610 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 611 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 612 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 613 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 614 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 615 { NULL, { 0, 0, 0 }, 0 } 616 }; 617 618 /* 619 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container. 620 * These aliases ensure that D definitions can use typical <sys/types.h> names. 621 */ 622 static const dt_typedef_t _dtrace_typedefs_32[] = { 623 { "char", "int8_t" }, 624 { "short", "int16_t" }, 625 { "int", "int32_t" }, 626 { "long long", "int64_t" }, 627 { "int", "intptr_t" }, 628 { "int", "ssize_t" }, 629 { "unsigned char", "uint8_t" }, 630 { "unsigned short", "uint16_t" }, 631 { "unsigned", "uint32_t" }, 632 { "unsigned long long", "uint64_t" }, 633 { "unsigned char", "uchar_t" }, 634 { "unsigned short", "ushort_t" }, 635 { "unsigned", "uint_t" }, 636 { "unsigned long", "ulong_t" }, 637 { "unsigned long long", "u_longlong_t" }, 638 { "int", "ptrdiff_t" }, 639 { "unsigned", "uintptr_t" }, 640 { "unsigned", "size_t" }, 641 { "long", "id_t" }, 642 { "long", "pid_t" }, 643 { NULL, NULL } 644 }; 645 646 /* 647 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container. 648 * These aliases ensure that D definitions can use typical <sys/types.h> names. 649 */ 650 static const dt_typedef_t _dtrace_typedefs_64[] = { 651 { "char", "int8_t" }, 652 { "short", "int16_t" }, 653 { "int", "int32_t" }, 654 { "long", "int64_t" }, 655 { "long", "intptr_t" }, 656 { "long", "ssize_t" }, 657 { "unsigned char", "uint8_t" }, 658 { "unsigned short", "uint16_t" }, 659 { "unsigned", "uint32_t" }, 660 { "unsigned long", "uint64_t" }, 661 { "unsigned char", "uchar_t" }, 662 { "unsigned short", "ushort_t" }, 663 { "unsigned", "uint_t" }, 664 { "unsigned long", "ulong_t" }, 665 { "unsigned long long", "u_longlong_t" }, 666 { "long", "ptrdiff_t" }, 667 { "unsigned long", "uintptr_t" }, 668 { "unsigned long", "size_t" }, 669 { "int", "id_t" }, 670 { "int", "pid_t" }, 671 { NULL, NULL } 672 }; 673 674 /* 675 * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[] 676 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 677 */ 678 static const dt_intdesc_t _dtrace_ints_32[] = { 679 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 680 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 681 { "long", NULL, CTF_ERR, 0x7fffffffULL }, 682 { "unsigned long", NULL, CTF_ERR, 0xffffffffULL }, 683 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 684 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 685 }; 686 687 /* 688 * Tables of LP64 integer type templates used to populate the dtp->dt_ints[] 689 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 690 */ 691 static const dt_intdesc_t _dtrace_ints_64[] = { 692 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 693 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 694 { "long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 695 { "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL }, 696 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 697 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 698 }; 699 700 /* 701 * Table of macro variable templates used to populate the macro identifier hash 702 * when a new dtrace client open occurs. Values are set by dtrace_update(). 703 */ 704 static const dt_ident_t _dtrace_macros[] = { 705 { "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 706 { "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 707 { "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 708 { "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 709 { "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 710 { "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 711 { "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 712 { "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 713 { "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 714 { "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 715 { "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 716 { NULL, 0, 0, 0, { 0, 0, 0 }, 0 } 717 }; 718 719 /* 720 * Hard-wired definition string to be compiled and cached every time a new 721 * DTrace library handle is initialized. This string should only be used to 722 * contain definitions that should be present regardless of DTRACE_O_NOLIBS. 723 */ 724 static const char _dtrace_hardwire[] = "\ 725 inline long NULL = 0; \n\ 726 #pragma D binding \"1.0\" NULL\n\ 727 "; 728 729 /* 730 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV. 731 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel. 732 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are 733 * relying on the fact that when running dtrace(1M), isaexec will invoke the 734 * binary with the same bitness as the kernel, which is what we want by default 735 * when generating our DIF. The user can override the choice using oflags. 736 */ 737 static const dtrace_conf_t _dtrace_conf = { 738 DIF_VERSION, /* dtc_difversion */ 739 DIF_DIR_NREGS, /* dtc_difintregs */ 740 DIF_DTR_NREGS, /* dtc_diftupregs */ 741 CTF_MODEL_NATIVE /* dtc_ctfmodel */ 742 }; 743 744 const dtrace_attribute_t _dtrace_maxattr = { 745 DTRACE_STABILITY_MAX, 746 DTRACE_STABILITY_MAX, 747 DTRACE_CLASS_MAX 748 }; 749 750 const dtrace_attribute_t _dtrace_defattr = { 751 DTRACE_STABILITY_STABLE, 752 DTRACE_STABILITY_STABLE, 753 DTRACE_CLASS_COMMON 754 }; 755 756 const dtrace_attribute_t _dtrace_symattr = { 757 DTRACE_STABILITY_PRIVATE, 758 DTRACE_STABILITY_PRIVATE, 759 DTRACE_CLASS_UNKNOWN 760 }; 761 762 const dtrace_attribute_t _dtrace_typattr = { 763 DTRACE_STABILITY_PRIVATE, 764 DTRACE_STABILITY_PRIVATE, 765 DTRACE_CLASS_UNKNOWN 766 }; 767 768 const dtrace_attribute_t _dtrace_prvattr = { 769 DTRACE_STABILITY_PRIVATE, 770 DTRACE_STABILITY_PRIVATE, 771 DTRACE_CLASS_UNKNOWN 772 }; 773 774 const dtrace_pattr_t _dtrace_prvdesc = { 775 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 776 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 777 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 778 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 779 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 780 }; 781 782 #ifdef illumos 783 const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */ 784 const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */ 785 #else 786 const char *_dtrace_defcpp = "cpp"; /* default cpp(1) to invoke */ 787 const char *_dtrace_defld = "ld"; /* default ld(1) to invoke */ 788 const char *_dtrace_defobjcopy = "objcopy"; /* default objcopy(1) to invoke */ 789 #endif 790 791 const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */ 792 #ifdef illumos 793 const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */ 794 #else 795 const char *_dtrace_provdir = "/dev/dtrace"; /* provider directory */ 796 #endif 797 798 int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */ 799 int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */ 800 uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */ 801 uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */ 802 uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */ 803 uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */ 804 size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */ 805 int _dtrace_argmax = 32; /* default maximum number of probe arguments */ 806 807 int _dtrace_debug = 0; /* debug messages enabled (off) */ 808 const char *const _dtrace_version = DT_VERS_STRING; /* API version string */ 809 int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */ 810 811 typedef struct dt_fdlist { 812 int *df_fds; /* array of provider driver file descriptors */ 813 uint_t df_ents; /* number of valid elements in df_fds[] */ 814 uint_t df_size; /* size of df_fds[] */ 815 } dt_fdlist_t; 816 817 #ifdef illumos 818 #pragma init(_dtrace_init) 819 #else 820 void _dtrace_init(void) __attribute__ ((constructor)); 821 #endif 822 void 823 _dtrace_init(void) 824 { 825 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL; 826 827 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) { 828 if (rd_init(_dtrace_rdvers) == RD_OK) 829 break; 830 } 831 #if defined(__i386__) 832 /* make long doubles 64 bits -sson */ 833 (void) fpsetprec(FP_PE); 834 #endif 835 } 836 837 static dtrace_hdl_t * 838 set_open_errno(dtrace_hdl_t *dtp, int *errp, int err) 839 { 840 if (dtp != NULL) 841 dtrace_close(dtp); 842 if (errp != NULL) 843 *errp = err; 844 return (NULL); 845 } 846 847 static void 848 dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp) 849 { 850 dt_provmod_t *prov; 851 char path[PATH_MAX]; 852 int fd; 853 #ifdef illumos 854 struct dirent *dp, *ep; 855 DIR *dirp; 856 857 if ((dirp = opendir(_dtrace_provdir)) == NULL) 858 return; /* failed to open directory; just skip it */ 859 860 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1); 861 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1); 862 863 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) { 864 if (dp->d_name[0] == '.') 865 continue; /* skip "." and ".." */ 866 867 if (dfp->df_ents == dfp->df_size) { 868 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 869 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 870 871 if (fds == NULL) 872 break; /* skip the rest of this directory */ 873 874 dfp->df_fds = fds; 875 dfp->df_size = size; 876 } 877 878 (void) snprintf(path, sizeof (path), "%s/%s", 879 _dtrace_provdir, dp->d_name); 880 881 if ((fd = open(path, O_RDONLY)) == -1) 882 continue; /* failed to open driver; just skip it */ 883 884 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 885 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) { 886 free(prov); 887 (void) close(fd); 888 break; 889 } 890 891 (void) strcpy(prov->dp_name, dp->d_name); 892 prov->dp_next = *provmod; 893 *provmod = prov; 894 895 dt_dprintf("opened provider %s\n", dp->d_name); 896 dfp->df_fds[dfp->df_ents++] = fd; 897 } 898 899 (void) closedir(dirp); 900 #else /* !illumos */ 901 char *p; 902 char *p1; 903 char *p_providers = NULL; 904 int error; 905 size_t len = 0; 906 907 /* 908 * Loop to allocate/reallocate memory for the string of provider 909 * names and retry: 910 */ 911 while(1) { 912 /* 913 * The first time around, get the string length. The next time, 914 * hopefully we've allocated enough memory. 915 */ 916 error = sysctlbyname("debug.dtrace.providers",p_providers,&len,NULL,0); 917 if (len == 0) 918 /* No providers? That's strange. Where's dtrace? */ 919 break; 920 else if (error == 0 && p_providers == NULL) { 921 /* 922 * Allocate the initial memory which should be enough 923 * unless another provider loads before we have 924 * time to go back and get the string. 925 */ 926 if ((p_providers = malloc(len)) == NULL) 927 /* How do we report errors here? */ 928 return; 929 } else if (error == -1 && errno == ENOMEM) { 930 /* 931 * The current buffer isn't large enough, so 932 * reallocate it. We normally won't need to do this 933 * because providers aren't being loaded all the time. 934 */ 935 if ((p = realloc(p_providers,len)) == NULL) 936 /* How do we report errors here? */ 937 return; 938 p_providers = p; 939 } else 940 break; 941 } 942 943 /* Check if we got a string of provider names: */ 944 if (error == 0 && len > 0 && p_providers != NULL) { 945 p = p_providers; 946 947 /* 948 * Parse the string containing the space separated 949 * provider names. 950 */ 951 while ((p1 = strsep(&p," ")) != NULL) { 952 if (dfp->df_ents == dfp->df_size) { 953 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 954 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 955 956 if (fds == NULL) 957 break; 958 959 dfp->df_fds = fds; 960 dfp->df_size = size; 961 } 962 963 (void) snprintf(path, sizeof (path), "/dev/dtrace/%s", p1); 964 965 if ((fd = open(path, O_RDONLY)) == -1) 966 continue; /* failed to open driver; just skip it */ 967 968 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 969 (prov->dp_name = malloc(strlen(p1) + 1)) == NULL) { 970 free(prov); 971 (void) close(fd); 972 break; 973 } 974 975 (void) strcpy(prov->dp_name, p1); 976 prov->dp_next = *provmod; 977 *provmod = prov; 978 979 dt_dprintf("opened provider %s\n", p1); 980 dfp->df_fds[dfp->df_ents++] = fd; 981 } 982 } 983 if (p_providers != NULL) 984 free(p_providers); 985 #endif /* illumos */ 986 } 987 988 static void 989 dt_provmod_destroy(dt_provmod_t **provmod) 990 { 991 dt_provmod_t *next, *current; 992 993 for (current = *provmod; current != NULL; current = next) { 994 next = current->dp_next; 995 free(current->dp_name); 996 free(current); 997 } 998 999 *provmod = NULL; 1000 } 1001 1002 #ifdef illumos 1003 static const char * 1004 dt_get_sysinfo(int cmd, char *buf, size_t len) 1005 { 1006 ssize_t rv = sysinfo(cmd, buf, len); 1007 char *p = buf; 1008 1009 if (rv < 0 || rv > len) 1010 (void) snprintf(buf, len, "%s", "Unknown"); 1011 1012 while ((p = strchr(p, '.')) != NULL) 1013 *p++ = '_'; 1014 1015 return (buf); 1016 } 1017 #endif 1018 1019 static dtrace_hdl_t * 1020 dt_vopen(int version, int flags, int *errp, 1021 const dtrace_vector_t *vector, void *arg) 1022 { 1023 dtrace_hdl_t *dtp = NULL; 1024 int dtfd = -1, ftfd = -1, fterr = 0; 1025 dtrace_prog_t *pgp; 1026 dt_module_t *dmp; 1027 dt_provmod_t *provmod = NULL; 1028 int i, err; 1029 struct rlimit rl; 1030 1031 const dt_intrinsic_t *dinp; 1032 const dt_typedef_t *dtyp; 1033 const dt_ident_t *idp; 1034 1035 dtrace_typeinfo_t dtt; 1036 ctf_funcinfo_t ctc; 1037 ctf_arinfo_t ctr; 1038 1039 dt_fdlist_t df = { NULL, 0, 0 }; 1040 1041 char isadef[32], utsdef[32]; 1042 char s1[64], s2[64]; 1043 1044 if (version <= 0) 1045 return (set_open_errno(dtp, errp, EINVAL)); 1046 1047 if (version > DTRACE_VERSION) 1048 return (set_open_errno(dtp, errp, EDT_VERSION)); 1049 1050 if (version < DTRACE_VERSION) { 1051 /* 1052 * Currently, increasing the library version number is used to 1053 * denote a binary incompatible change. That is, a consumer 1054 * of the library cannot run on a version of the library with 1055 * a higher DTRACE_VERSION number than the consumer compiled 1056 * against. Once the library API has been committed to, 1057 * backwards binary compatibility will be required; at that 1058 * time, this check should change to return EDT_OVERSION only 1059 * if the specified version number is less than the version 1060 * number at the time of interface commitment. 1061 */ 1062 return (set_open_errno(dtp, errp, EDT_OVERSION)); 1063 } 1064 1065 if (flags & ~DTRACE_O_MASK) 1066 return (set_open_errno(dtp, errp, EINVAL)); 1067 1068 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32)) 1069 return (set_open_errno(dtp, errp, EINVAL)); 1070 1071 if (vector == NULL && arg != NULL) 1072 return (set_open_errno(dtp, errp, EINVAL)); 1073 1074 if (elf_version(EV_CURRENT) == EV_NONE) 1075 return (set_open_errno(dtp, errp, EDT_ELFVERSION)); 1076 1077 if (vector != NULL || (flags & DTRACE_O_NODEV)) 1078 goto alloc; /* do not attempt to open dtrace device */ 1079 1080 /* 1081 * Before we get going, crank our limit on file descriptors up to the 1082 * hard limit. This is to allow for the fact that libproc keeps file 1083 * descriptors to objects open for the lifetime of the proc handle; 1084 * without raising our hard limit, we would have an acceptably small 1085 * bound on the number of processes that we could concurrently 1086 * instrument with the pid provider. 1087 */ 1088 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) { 1089 rl.rlim_cur = rl.rlim_max; 1090 (void) setrlimit(RLIMIT_NOFILE, &rl); 1091 } 1092 1093 /* 1094 * Get the device path of each of the providers. We hold them open 1095 * in the df.df_fds list until we open the DTrace driver itself, 1096 * allowing us to see all of the probes provided on this system. Once 1097 * we have the DTrace driver open, we can safely close all the providers 1098 * now that they have registered with the framework. 1099 */ 1100 dt_provmod_open(&provmod, &df); 1101 1102 dtfd = open("/dev/dtrace/dtrace", O_RDWR); 1103 err = errno; /* save errno from opening dtfd */ 1104 #if defined(__FreeBSD__) 1105 /* 1106 * Automatically load the 'dtraceall' module if we couldn't open the 1107 * char device. 1108 */ 1109 if (err == ENOENT && modfind("dtraceall") < 0) { 1110 kldload("dtraceall"); /* ignore the error */ 1111 dtfd = open("/dev/dtrace/dtrace", O_RDWR); 1112 err = errno; 1113 } 1114 #endif 1115 #ifdef illumos 1116 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR); 1117 #else 1118 ftfd = open("/dev/dtrace/fasttrap", O_RDWR); 1119 #endif 1120 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */ 1121 1122 while (df.df_ents-- != 0) 1123 (void) close(df.df_fds[df.df_ents]); 1124 1125 free(df.df_fds); 1126 1127 /* 1128 * If we failed to open the dtrace device, fail dtrace_open(). 1129 * We convert some kernel errnos to custom libdtrace errnos to 1130 * improve the resulting message from the usual strerror(). 1131 */ 1132 if (dtfd == -1) { 1133 dt_provmod_destroy(&provmod); 1134 switch (err) { 1135 case ENOENT: 1136 err = EDT_NOENT; 1137 break; 1138 case EBUSY: 1139 err = EDT_BUSY; 1140 break; 1141 case EACCES: 1142 err = EDT_ACCESS; 1143 break; 1144 } 1145 return (set_open_errno(dtp, errp, err)); 1146 } 1147 1148 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC); 1149 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC); 1150 1151 alloc: 1152 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL) 1153 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1154 1155 bzero(dtp, sizeof (dtrace_hdl_t)); 1156 dtp->dt_oflags = flags; 1157 #ifdef illumos 1158 dtp->dt_prcmode = DT_PROC_STOP_PREINIT; 1159 #else 1160 dtp->dt_prcmode = DT_PROC_STOP_POSTINIT; 1161 #endif 1162 dtp->dt_linkmode = DT_LINK_KERNEL; 1163 dtp->dt_linktype = DT_LTYP_ELF; 1164 dtp->dt_xlatemode = DT_XL_STATIC; 1165 dtp->dt_stdcmode = DT_STDC_XA; 1166 dtp->dt_encoding = DT_ENCODING_UNSET; 1167 dtp->dt_version = version; 1168 dtp->dt_fd = dtfd; 1169 dtp->dt_ftfd = ftfd; 1170 dtp->dt_fterr = fterr; 1171 dtp->dt_cdefs_fd = -1; 1172 dtp->dt_ddefs_fd = -1; 1173 #ifdef illumos 1174 dtp->dt_stdout_fd = -1; 1175 #else 1176 dtp->dt_freopen_fp = NULL; 1177 #endif 1178 dtp->dt_modbuckets = _dtrace_strbuckets; 1179 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *)); 1180 dtp->dt_provbuckets = _dtrace_strbuckets; 1181 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *)); 1182 dt_proc_hash_create(dtp); 1183 dtp->dt_vmax = DT_VERS_LATEST; 1184 dtp->dt_cpp_path = strdup(_dtrace_defcpp); 1185 dtp->dt_cpp_argv = malloc(sizeof (char *)); 1186 dtp->dt_cpp_argc = 1; 1187 dtp->dt_cpp_args = 1; 1188 dtp->dt_ld_path = strdup(_dtrace_defld); 1189 #ifdef __FreeBSD__ 1190 dtp->dt_objcopy_path = strdup(_dtrace_defobjcopy); 1191 #endif 1192 dtp->dt_provmod = provmod; 1193 dtp->dt_vector = vector; 1194 dtp->dt_varg = arg; 1195 dt_dof_init(dtp); 1196 (void) uname(&dtp->dt_uts); 1197 1198 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL || 1199 dtp->dt_procs == NULL || dtp->dt_ld_path == NULL || 1200 #ifdef __FreeBSD__ 1201 dtp->dt_objcopy_path == NULL || 1202 #endif 1203 dtp->dt_cpp_path == NULL || dtp->dt_cpp_argv == NULL) 1204 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1205 1206 for (i = 0; i < DTRACEOPT_MAX; i++) 1207 dtp->dt_options[i] = DTRACEOPT_UNSET; 1208 1209 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path); 1210 1211 #ifdef illumos 1212 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u", 1213 (uint_t)(sizeof (void *) * NBBY)); 1214 1215 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s", 1216 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)), 1217 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2))); 1218 1219 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL || 1220 dt_cpp_add_arg(dtp, "-D__unix") == NULL || 1221 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL || 1222 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL || 1223 dt_cpp_add_arg(dtp, isadef) == NULL || 1224 dt_cpp_add_arg(dtp, utsdef) == NULL) 1225 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1226 #endif 1227 1228 if (flags & DTRACE_O_NODEV) 1229 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf)); 1230 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0) 1231 return (set_open_errno(dtp, errp, errno)); 1232 1233 if (flags & DTRACE_O_LP64) 1234 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64; 1235 else if (flags & DTRACE_O_ILP32) 1236 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32; 1237 1238 #ifdef __sparc 1239 /* 1240 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h> 1241 * and __sparcv9 is defined if we are doing a 64-bit compile. 1242 */ 1243 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL) 1244 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1245 1246 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 && 1247 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL) 1248 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1249 #endif 1250 1251 #ifdef illumos 1252 #ifdef __x86 1253 /* 1254 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit 1255 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC, 1256 * they are defined exclusive of one another (see PSARC 2004/619). 1257 */ 1258 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 1259 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL) 1260 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1261 } else { 1262 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL) 1263 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1264 } 1265 #endif 1266 #else 1267 #if defined(__amd64__) || defined(__i386__) 1268 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 1269 if (dt_cpp_add_arg(dtp, "-m64") == NULL) 1270 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1271 } else { 1272 if (dt_cpp_add_arg(dtp, "-m32") == NULL) 1273 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1274 } 1275 #endif 1276 #endif 1277 1278 if (dtp->dt_conf.dtc_difversion < DIF_VERSION) 1279 return (set_open_errno(dtp, errp, EDT_DIFVERS)); 1280 1281 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) 1282 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32)); 1283 else 1284 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64)); 1285 1286 /* 1287 * On FreeBSD the kernel module name can't be hard-coded. The 1288 * 'kern.bootfile' sysctl value tells us exactly which file is being 1289 * used as the kernel. 1290 */ 1291 #ifndef illumos 1292 { 1293 char bootfile[MAXPATHLEN]; 1294 char *p; 1295 int i; 1296 size_t len = sizeof(bootfile); 1297 1298 /* This call shouldn't fail, but use a default just in case. */ 1299 if (sysctlbyname("kern.bootfile", bootfile, &len, NULL, 0) != 0) 1300 strlcpy(bootfile, "kernel", sizeof(bootfile)); 1301 1302 if ((p = strrchr(bootfile, '/')) != NULL) 1303 p++; 1304 else 1305 p = bootfile; 1306 1307 /* 1308 * Format the global variables based on the kernel module name. 1309 */ 1310 snprintf(curthread_str, sizeof(curthread_str), "%s`struct thread *",p); 1311 snprintf(intmtx_str, sizeof(intmtx_str), "int(%s`struct mtx *)",p); 1312 snprintf(threadmtx_str, sizeof(threadmtx_str), "struct thread *(%s`struct mtx *)",p); 1313 snprintf(rwlock_str, sizeof(rwlock_str), "int(%s`struct rwlock *)",p); 1314 snprintf(sxlock_str, sizeof(sxlock_str), "int(%s`struct sxlock *)",p); 1315 } 1316 #endif 1317 1318 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX); 1319 dtp->dt_aggs = dt_idhash_create("aggregation", NULL, 1320 DTRACE_AGGVARIDNONE + 1, UINT_MAX); 1321 1322 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals, 1323 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1324 1325 dtp->dt_tls = dt_idhash_create("thread local", NULL, 1326 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1327 1328 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL || 1329 dtp->dt_globals == NULL || dtp->dt_tls == NULL) 1330 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1331 1332 /* 1333 * Populate the dt_macros identifier hash table by hand: we can't use 1334 * the dt_idhash_populate() mechanism because we're not yet compiling 1335 * and dtrace_update() needs to immediately reference these idents. 1336 */ 1337 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) { 1338 if (dt_idhash_insert(dtp->dt_macros, idp->di_name, 1339 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr, 1340 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw, 1341 idp->di_iarg, 0) == NULL) 1342 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1343 } 1344 1345 /* 1346 * Update the module list using /system/object and load the values for 1347 * the macro variable definitions according to the current process. 1348 */ 1349 dtrace_update(dtp); 1350 1351 /* 1352 * Select the intrinsics and typedefs we want based on the data model. 1353 * The intrinsics are under "C". The typedefs are added under "D". 1354 */ 1355 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) { 1356 dinp = _dtrace_intrinsics_32; 1357 dtyp = _dtrace_typedefs_32; 1358 } else { 1359 dinp = _dtrace_intrinsics_64; 1360 dtyp = _dtrace_typedefs_64; 1361 } 1362 1363 /* 1364 * Create a dynamic CTF container under the "C" scope for intrinsic 1365 * types and types defined in ANSI-C header files that are included. 1366 */ 1367 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL) 1368 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1369 1370 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1371 return (set_open_errno(dtp, errp, EDT_CTF)); 1372 1373 dt_dprintf("created CTF container for %s (%p)\n", 1374 dmp->dm_name, (void *)dmp->dm_ctfp); 1375 1376 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1377 ctf_setspecific(dmp->dm_ctfp, dmp); 1378 1379 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1380 dmp->dm_modid = -1; /* no module ID */ 1381 1382 /* 1383 * Fill the dynamic "C" CTF container with all of the intrinsic 1384 * integer and floating-point types appropriate for this data model. 1385 */ 1386 for (; dinp->din_name != NULL; dinp++) { 1387 if (dinp->din_kind == CTF_K_INTEGER) { 1388 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT, 1389 dinp->din_name, &dinp->din_data); 1390 } else { 1391 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT, 1392 dinp->din_name, &dinp->din_data); 1393 } 1394 1395 if (err == CTF_ERR) { 1396 dt_dprintf("failed to add %s to C container: %s\n", 1397 dinp->din_name, ctf_errmsg( 1398 ctf_errno(dmp->dm_ctfp))); 1399 return (set_open_errno(dtp, errp, EDT_CTF)); 1400 } 1401 } 1402 1403 if (ctf_update(dmp->dm_ctfp) != 0) { 1404 dt_dprintf("failed to update C container: %s\n", 1405 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1406 return (set_open_errno(dtp, errp, EDT_CTF)); 1407 } 1408 1409 /* 1410 * Add intrinsic pointer types that are needed to initialize printf 1411 * format dictionary types (see table in dt_printf.c). 1412 */ 1413 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1414 ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1415 1416 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1417 ctf_lookup_by_name(dmp->dm_ctfp, "char")); 1418 1419 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1420 ctf_lookup_by_name(dmp->dm_ctfp, "int")); 1421 1422 if (ctf_update(dmp->dm_ctfp) != 0) { 1423 dt_dprintf("failed to update C container: %s\n", 1424 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1425 return (set_open_errno(dtp, errp, EDT_CTF)); 1426 } 1427 1428 /* 1429 * Create a dynamic CTF container under the "D" scope for types that 1430 * are defined by the D program itself or on-the-fly by the D compiler. 1431 * The "D" CTF container is a child of the "C" CTF container. 1432 */ 1433 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL) 1434 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1435 1436 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1437 return (set_open_errno(dtp, errp, EDT_CTF)); 1438 1439 dt_dprintf("created CTF container for %s (%p)\n", 1440 dmp->dm_name, (void *)dmp->dm_ctfp); 1441 1442 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1443 ctf_setspecific(dmp->dm_ctfp, dmp); 1444 1445 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1446 dmp->dm_modid = -1; /* no module ID */ 1447 1448 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) { 1449 dt_dprintf("failed to import D parent container: %s\n", 1450 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1451 return (set_open_errno(dtp, errp, EDT_CTF)); 1452 } 1453 1454 /* 1455 * Fill the dynamic "D" CTF container with all of the built-in typedefs 1456 * that we need to use for our D variable and function definitions. 1457 * This ensures that basic inttypes.h names are always available to us. 1458 */ 1459 for (; dtyp->dty_src != NULL; dtyp++) { 1460 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1461 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp, 1462 dtyp->dty_src)) == CTF_ERR) { 1463 dt_dprintf("failed to add typedef %s %s to D " 1464 "container: %s", dtyp->dty_src, dtyp->dty_dst, 1465 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1466 return (set_open_errno(dtp, errp, EDT_CTF)); 1467 } 1468 } 1469 1470 /* 1471 * Insert a CTF ID corresponding to a pointer to a type of kind 1472 * CTF_K_FUNCTION we can use in the compiler for function pointers. 1473 * CTF treats all function pointers as "int (*)()" so we only need one. 1474 */ 1475 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int"); 1476 ctc.ctc_argc = 0; 1477 ctc.ctc_flags = 0; 1478 1479 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp, 1480 CTF_ADD_ROOT, &ctc, NULL); 1481 1482 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp, 1483 CTF_ADD_ROOT, dtp->dt_type_func); 1484 1485 /* 1486 * We also insert CTF definitions for the special D intrinsic types 1487 * string and <DYN> into the D container. The string type is added 1488 * as a typedef of char[n]. The <DYN> type is an alias for void. 1489 * We compare types to these special CTF ids throughout the compiler. 1490 */ 1491 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char"); 1492 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long"); 1493 ctr.ctr_nelems = _dtrace_strsize; 1494 1495 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1496 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr)); 1497 1498 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1499 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1500 1501 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1502 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1503 1504 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1505 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1506 1507 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1508 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1509 1510 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR || 1511 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR || 1512 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR || 1513 dtp->dt_type_usymaddr == CTF_ERR) { 1514 dt_dprintf("failed to add intrinsic to D container: %s\n", 1515 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1516 return (set_open_errno(dtp, errp, EDT_CTF)); 1517 } 1518 1519 if (ctf_update(dmp->dm_ctfp) != 0) { 1520 dt_dprintf("failed update D container: %s\n", 1521 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1522 return (set_open_errno(dtp, errp, EDT_CTF)); 1523 } 1524 1525 /* 1526 * Initialize the integer description table used to convert integer 1527 * constants to the appropriate types. Refer to the comments above 1528 * dt_node_int() for a complete description of how this table is used. 1529 */ 1530 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) { 1531 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY, 1532 dtp->dt_ints[i].did_name, &dtt) != 0) { 1533 dt_dprintf("failed to lookup integer type %s: %s\n", 1534 dtp->dt_ints[i].did_name, 1535 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1536 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1537 } 1538 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp; 1539 dtp->dt_ints[i].did_type = dtt.dtt_type; 1540 } 1541 1542 /* 1543 * Now that we've created the "C" and "D" containers, move them to the 1544 * start of the module list so that these types and symbols are found 1545 * first (for stability) when iterating through the module list. 1546 */ 1547 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs); 1548 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs); 1549 1550 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs); 1551 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs); 1552 1553 if (dt_pfdict_create(dtp) == -1) 1554 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1555 1556 /* 1557 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default 1558 * because without /dev/dtrace open, we will not be able to load the 1559 * names and attributes of any providers or probes from the kernel. 1560 */ 1561 if (flags & DTRACE_O_NODEV) 1562 dtp->dt_cflags |= DTRACE_C_ZDEFS; 1563 1564 /* 1565 * Load hard-wired inlines into the definition cache by calling the 1566 * compiler on the raw definition string defined above. 1567 */ 1568 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire, 1569 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) { 1570 dt_dprintf("failed to load hard-wired definitions: %s\n", 1571 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1572 return (set_open_errno(dtp, errp, EDT_HARDWIRE)); 1573 } 1574 1575 dt_program_destroy(dtp, pgp); 1576 1577 /* 1578 * Set up the default DTrace library path. Once set, the next call to 1579 * dt_compile() will compile all the libraries. We intentionally defer 1580 * library processing to improve overhead for clients that don't ever 1581 * compile, and to provide better error reporting (because the full 1582 * reporting of compiler errors requires dtrace_open() to succeed). 1583 */ 1584 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0) 1585 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1586 1587 return (dtp); 1588 } 1589 1590 dtrace_hdl_t * 1591 dtrace_open(int version, int flags, int *errp) 1592 { 1593 return (dt_vopen(version, flags, errp, NULL, NULL)); 1594 } 1595 1596 dtrace_hdl_t * 1597 dtrace_vopen(int version, int flags, int *errp, 1598 const dtrace_vector_t *vector, void *arg) 1599 { 1600 return (dt_vopen(version, flags, errp, vector, arg)); 1601 } 1602 1603 void 1604 dtrace_close(dtrace_hdl_t *dtp) 1605 { 1606 dt_ident_t *idp, *ndp; 1607 dt_module_t *dmp; 1608 dt_provider_t *pvp; 1609 dtrace_prog_t *pgp; 1610 dt_xlator_t *dxp; 1611 dt_dirpath_t *dirp; 1612 int i; 1613 1614 if (dtp->dt_procs != NULL) 1615 dt_proc_hash_destroy(dtp); 1616 1617 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL) 1618 dt_program_destroy(dtp, pgp); 1619 1620 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL) 1621 dt_xlator_destroy(dtp, dxp); 1622 1623 dt_free(dtp, dtp->dt_xlatormap); 1624 1625 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) { 1626 ndp = idp->di_next; 1627 dt_ident_destroy(idp); 1628 } 1629 1630 if (dtp->dt_macros != NULL) 1631 dt_idhash_destroy(dtp->dt_macros); 1632 if (dtp->dt_aggs != NULL) 1633 dt_idhash_destroy(dtp->dt_aggs); 1634 if (dtp->dt_globals != NULL) 1635 dt_idhash_destroy(dtp->dt_globals); 1636 if (dtp->dt_tls != NULL) 1637 dt_idhash_destroy(dtp->dt_tls); 1638 1639 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL) 1640 dt_module_destroy(dtp, dmp); 1641 1642 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL) 1643 dt_provider_destroy(dtp, pvp); 1644 1645 if (dtp->dt_fd != -1) 1646 (void) close(dtp->dt_fd); 1647 if (dtp->dt_ftfd != -1) 1648 (void) close(dtp->dt_ftfd); 1649 if (dtp->dt_cdefs_fd != -1) 1650 (void) close(dtp->dt_cdefs_fd); 1651 if (dtp->dt_ddefs_fd != -1) 1652 (void) close(dtp->dt_ddefs_fd); 1653 #ifdef illumos 1654 if (dtp->dt_stdout_fd != -1) 1655 (void) close(dtp->dt_stdout_fd); 1656 #else 1657 if (dtp->dt_freopen_fp != NULL) 1658 (void) fclose(dtp->dt_freopen_fp); 1659 #endif 1660 1661 dt_epid_destroy(dtp); 1662 dt_aggid_destroy(dtp); 1663 dt_format_destroy(dtp); 1664 dt_strdata_destroy(dtp); 1665 dt_buffered_destroy(dtp); 1666 dt_aggregate_destroy(dtp); 1667 dt_pfdict_destroy(dtp); 1668 dt_provmod_destroy(&dtp->dt_provmod); 1669 dt_dof_fini(dtp); 1670 1671 for (i = 1; i < dtp->dt_cpp_argc; i++) 1672 free(dtp->dt_cpp_argv[i]); 1673 1674 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) { 1675 dt_list_delete(&dtp->dt_lib_path, dirp); 1676 free(dirp->dir_path); 1677 free(dirp); 1678 } 1679 1680 free(dtp->dt_cpp_argv); 1681 free(dtp->dt_cpp_path); 1682 free(dtp->dt_ld_path); 1683 #ifdef __FreeBSD__ 1684 free(dtp->dt_objcopy_path); 1685 #endif 1686 1687 free(dtp->dt_mods); 1688 free(dtp->dt_provs); 1689 free(dtp); 1690 } 1691 1692 int 1693 dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods) 1694 { 1695 dt_provmod_t *prov; 1696 int i = 0; 1697 1698 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) { 1699 if (i < nmods) 1700 mods[i] = prov->dp_name; 1701 } 1702 1703 return (i); 1704 } 1705 1706 int 1707 dtrace_ctlfd(dtrace_hdl_t *dtp) 1708 { 1709 return (dtp->dt_fd); 1710 } 1711