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) 2011, Joyent, Inc. All rights reserved. 25 * Copyright (c) 2012 by Delphix. All rights reserved. 26 */ 27 28 #include <sys/types.h> 29 #if defined(sun) 30 #include <sys/modctl.h> 31 #include <sys/systeminfo.h> 32 #endif 33 #include <sys/resource.h> 34 35 #include <libelf.h> 36 #include <strings.h> 37 #if defined(sun) 38 #include <alloca.h> 39 #endif 40 #include <limits.h> 41 #include <unistd.h> 42 #include <stdlib.h> 43 #include <stdio.h> 44 #include <fcntl.h> 45 #include <errno.h> 46 #include <assert.h> 47 48 #define _POSIX_PTHREAD_SEMANTICS 49 #include <dirent.h> 50 #undef _POSIX_PTHREAD_SEMANTICS 51 52 #include <dt_impl.h> 53 #include <dt_program.h> 54 #include <dt_module.h> 55 #include <dt_printf.h> 56 #include <dt_string.h> 57 #include <dt_provider.h> 58 #if !defined(sun) 59 #include <sys/sysctl.h> 60 #include <string.h> 61 #endif 62 #if defined(__i386__) 63 #include <ieeefp.h> 64 #endif 65 66 /* 67 * Stability and versioning definitions. These #defines are used in the tables 68 * of identifiers below to fill in the attribute and version fields associated 69 * with each identifier. The DT_ATTR_* macros are a convenience to permit more 70 * concise declarations of common attributes such as Stable/Stable/Common. The 71 * DT_VERS_* macros declare the encoded integer values of all versions used so 72 * far. DT_VERS_LATEST must correspond to the latest version value among all 73 * versions exported by the D compiler. DT_VERS_STRING must be an ASCII string 74 * that contains DT_VERS_LATEST within it along with any suffixes (e.g. Beta). 75 * You must update DT_VERS_LATEST and DT_VERS_STRING when adding a new version, 76 * and then add the new version to the _dtrace_versions[] array declared below. 77 * Refer to the Solaris Dynamic Tracing Guide Stability and Versioning chapters 78 * respectively for an explanation of these DTrace features and their values. 79 * 80 * NOTE: Although the DTrace versioning scheme supports the labeling and 81 * introduction of incompatible changes (e.g. dropping an interface in a 82 * major release), the libdtrace code does not currently support this. 83 * All versions are assumed to strictly inherit from one another. If 84 * we ever need to provide divergent interfaces, this will need work. 85 */ 86 #define DT_ATTR_STABCMN { DTRACE_STABILITY_STABLE, \ 87 DTRACE_STABILITY_STABLE, DTRACE_CLASS_COMMON } 88 89 #define DT_ATTR_EVOLCMN { DTRACE_STABILITY_EVOLVING, \ 90 DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_COMMON \ 91 } 92 93 /* 94 * The version number should be increased for every customer visible release 95 * of DTrace. The major number should be incremented when a fundamental 96 * change has been made that would affect all consumers, and would reflect 97 * sweeping changes to DTrace or the D language. The minor number should be 98 * incremented when a change is introduced that could break scripts that had 99 * previously worked; for example, adding a new built-in variable could break 100 * a script which was already using that identifier. The micro number should 101 * be changed when introducing functionality changes or major bug fixes that 102 * do not affect backward compatibility -- this is merely to make capabilities 103 * easily determined from the version number. Minor bugs do not require any 104 * modification to the version number. 105 */ 106 #define DT_VERS_1_0 DT_VERSION_NUMBER(1, 0, 0) 107 #define DT_VERS_1_1 DT_VERSION_NUMBER(1, 1, 0) 108 #define DT_VERS_1_2 DT_VERSION_NUMBER(1, 2, 0) 109 #define DT_VERS_1_2_1 DT_VERSION_NUMBER(1, 2, 1) 110 #define DT_VERS_1_2_2 DT_VERSION_NUMBER(1, 2, 2) 111 #define DT_VERS_1_3 DT_VERSION_NUMBER(1, 3, 0) 112 #define DT_VERS_1_4 DT_VERSION_NUMBER(1, 4, 0) 113 #define DT_VERS_1_4_1 DT_VERSION_NUMBER(1, 4, 1) 114 #define DT_VERS_1_5 DT_VERSION_NUMBER(1, 5, 0) 115 #define DT_VERS_1_6 DT_VERSION_NUMBER(1, 6, 0) 116 #define DT_VERS_1_6_1 DT_VERSION_NUMBER(1, 6, 1) 117 #define DT_VERS_1_6_2 DT_VERSION_NUMBER(1, 6, 2) 118 #define DT_VERS_1_6_3 DT_VERSION_NUMBER(1, 6, 3) 119 #define DT_VERS_1_7 DT_VERSION_NUMBER(1, 7, 0) 120 #define DT_VERS_1_7_1 DT_VERSION_NUMBER(1, 7, 1) 121 #define DT_VERS_1_8 DT_VERSION_NUMBER(1, 8, 0) 122 #define DT_VERS_1_8_1 DT_VERSION_NUMBER(1, 8, 1) 123 #define DT_VERS_1_9 DT_VERSION_NUMBER(1, 9, 0) 124 #define DT_VERS_1_9_1 DT_VERSION_NUMBER(1, 9, 1) 125 #define DT_VERS_LATEST DT_VERS_1_9_1 126 #define DT_VERS_STRING "Sun D 1.9.1" 127 128 const dt_version_t _dtrace_versions[] = { 129 DT_VERS_1_0, /* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */ 130 DT_VERS_1_1, /* D API 1.1.0 Solaris Express 6/05 */ 131 DT_VERS_1_2, /* D API 1.2.0 Solaris 10 Update 1 */ 132 DT_VERS_1_2_1, /* D API 1.2.1 Solaris Express 4/06 */ 133 DT_VERS_1_2_2, /* D API 1.2.2 Solaris Express 6/06 */ 134 DT_VERS_1_3, /* D API 1.3 Solaris Express 10/06 */ 135 DT_VERS_1_4, /* D API 1.4 Solaris Express 2/07 */ 136 DT_VERS_1_4_1, /* D API 1.4.1 Solaris Express 4/07 */ 137 DT_VERS_1_5, /* D API 1.5 Solaris Express 7/07 */ 138 DT_VERS_1_6, /* D API 1.6 */ 139 DT_VERS_1_6_1, /* D API 1.6.1 */ 140 DT_VERS_1_6_2, /* D API 1.6.2 */ 141 DT_VERS_1_6_3, /* D API 1.6.3 */ 142 DT_VERS_1_7, /* D API 1.7 */ 143 DT_VERS_1_7_1, /* D API 1.7.1 */ 144 DT_VERS_1_8, /* D API 1.8 */ 145 DT_VERS_1_8_1, /* D API 1.8.1 */ 146 DT_VERS_1_9, /* D API 1.9 */ 147 DT_VERS_1_9_1, /* D API 1.9.1 */ 148 0 149 }; 150 151 /* 152 * Global variables that are formatted on FreeBSD based on the kernel file name. 153 */ 154 #if !defined(sun) 155 static char curthread_str[MAXPATHLEN]; 156 static char intmtx_str[MAXPATHLEN]; 157 static char threadmtx_str[MAXPATHLEN]; 158 static char rwlock_str[MAXPATHLEN]; 159 static char sxlock_str[MAXPATHLEN]; 160 #endif 161 162 /* 163 * Table of global identifiers. This is used to populate the global identifier 164 * hash when a new dtrace client open occurs. For more info see dt_ident.h. 165 * The global identifiers that represent functions use the dt_idops_func ops 166 * and specify the private data pointer as a prototype string which is parsed 167 * when the identifier is first encountered. These prototypes look like ANSI 168 * C function prototypes except that the special symbol "@" can be used as a 169 * wildcard to represent a single parameter of any type (i.e. any dt_node_t). 170 * The standard "..." notation can also be used to represent varargs. An empty 171 * parameter list is taken to mean void (that is, no arguments are permitted). 172 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional 173 * argument. 174 */ 175 static const dt_ident_t _dtrace_globals[] = { 176 { "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0, 177 &dt_idops_func, "void *(size_t)" }, 178 { "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0, 179 &dt_idops_type, "int64_t" }, 180 { "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0, 181 &dt_idops_type, "int64_t" }, 182 { "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0, 183 &dt_idops_type, "int64_t" }, 184 { "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0, 185 &dt_idops_type, "int64_t" }, 186 { "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0, 187 &dt_idops_type, "int64_t" }, 188 { "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0, 189 &dt_idops_type, "int64_t" }, 190 { "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0, 191 &dt_idops_type, "int64_t" }, 192 { "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0, 193 &dt_idops_type, "int64_t" }, 194 { "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0, 195 &dt_idops_type, "int64_t" }, 196 { "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0, 197 &dt_idops_type, "int64_t" }, 198 { "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0, 199 &dt_idops_args, NULL }, 200 { "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0, 201 &dt_idops_func, "void(@)" }, 202 { "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0, 203 &dt_idops_func, "string(const char *)" }, 204 { "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0, 205 &dt_idops_func, "void(void *, void *, size_t)" }, 206 { "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT, 207 DT_ATTR_STABCMN, DT_VERS_1_0, 208 &dt_idops_func, "void()" }, 209 { "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0, 210 &dt_idops_type, "uintptr_t" }, 211 { "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0, 212 &dt_idops_func, "void(int)" }, 213 { "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN, 214 DT_VERS_1_0, &dt_idops_func, "string(const char *)" }, 215 { "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0, 216 &dt_idops_func, "void(...)" }, 217 { "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0, 218 &dt_idops_func, "void(int)" }, 219 { "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0, 220 &dt_idops_func, "void *(uintptr_t, size_t)" }, 221 { "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR, 222 DT_ATTR_STABCMN, DT_VERS_1_0, 223 &dt_idops_func, "string(uintptr_t, [size_t])" }, 224 { "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN, 225 DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" }, 226 { "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0, 227 &dt_idops_func, "void(void *, uintptr_t, size_t)" }, 228 { "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR, 229 DT_ATTR_STABCMN, DT_VERS_1_0, 230 &dt_idops_func, "void(char *, uintptr_t, size_t)" }, 231 { "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0, 232 &dt_idops_func, "void()" }, 233 { "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD, 234 { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE, 235 DTRACE_CLASS_COMMON }, DT_VERS_1_0, 236 #if defined(sun) 237 &dt_idops_type, "genunix`kthread_t *" }, 238 #else 239 &dt_idops_type, curthread_str }, 240 #endif 241 { "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME, 242 DT_ATTR_EVOLCMN, DT_VERS_1_0, 243 &dt_idops_func, "string(void *, int64_t)" }, 244 { "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN, 245 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 246 { "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0, 247 &dt_idops_func, "string(const char *)" }, 248 { "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0, 249 &dt_idops_func, "void(int)" }, 250 { "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0, 251 &dt_idops_type, "uint_t" }, 252 { "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0, 253 &dt_idops_type, "int" }, 254 { "execargs", DT_IDENT_SCALAR, 0, DIF_VAR_EXECARGS, 255 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 256 { "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME, 257 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 258 { "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0, 259 &dt_idops_func, "void(int)" }, 260 { "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN, 261 DT_VERS_1_1, &dt_idops_func, "void(@, ...)" }, 262 { "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN, 263 DT_VERS_1_0, &dt_idops_func, "void()" }, 264 { "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 265 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 266 { "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR, 267 DT_ATTR_EVOLCMN, DT_VERS_1_0, 268 &dt_idops_func, "genunix`major_t(genunix`dev_t)" }, 269 { "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR, 270 DT_ATTR_EVOLCMN, DT_VERS_1_0, 271 &dt_idops_func, "genunix`minor_t(genunix`dev_t)" }, 272 { "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 273 &dt_idops_func, "uint32_t(uint32_t)" }, 274 { "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 275 &dt_idops_func, "uint64_t(uint64_t)" }, 276 { "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 277 &dt_idops_func, "uint16_t(uint16_t)" }, 278 { "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0, 279 &dt_idops_type, "gid_t" }, 280 { "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0, 281 &dt_idops_type, "uint_t" }, 282 { "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 283 &dt_idops_func, "int(const char *, const char *, [int])" }, 284 { "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN, 285 #if defined(sun) 286 DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" }, 287 #else 288 DT_VERS_1_5, &dt_idops_func, "string(in_addr_t *)" }, 289 #endif 290 { "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN, 291 #if defined(sun) 292 DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" }, 293 #else 294 DT_VERS_1_5, &dt_idops_func, "string(struct in6_addr *)" }, 295 #endif 296 { "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN, 297 DT_VERS_1_5, &dt_idops_func, "string(int, void *)" }, 298 { "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0, 299 &dt_idops_type, "uint_t" }, 300 { "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 301 &dt_idops_func, "stack(...)" }, 302 { "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0, 303 &dt_idops_func, "string(int64_t, [int])" }, 304 { "llquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LLQUANTIZE, DT_ATTR_STABCMN, 305 DT_VERS_1_7, &dt_idops_func, 306 "void(@, int32_t, int32_t, int32_t, int32_t, ...)" }, 307 { "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE, 308 DT_ATTR_STABCMN, DT_VERS_1_0, 309 &dt_idops_func, "void(@, int32_t, int32_t, ...)" }, 310 { "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0, 311 &dt_idops_func, "void(@)" }, 312 { "memref", DT_IDENT_FUNC, 0, DIF_SUBR_MEMREF, DT_ATTR_STABCMN, DT_VERS_1_1, 313 &dt_idops_func, "uintptr_t *(void *, size_t)" }, 314 { "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0, 315 &dt_idops_func, "void(@)" }, 316 { "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN, 317 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 318 { "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE, 319 DT_ATTR_STABCMN, DT_VERS_1_0, 320 &dt_idops_func, "size_t(mblk_t *)" }, 321 { "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE, 322 DT_ATTR_STABCMN, DT_VERS_1_0, 323 &dt_idops_func, "size_t(mblk_t *)" }, 324 #if defined(sun) 325 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 326 DT_ATTR_EVOLCMN, DT_VERS_1_0, 327 &dt_idops_func, "int(genunix`kmutex_t *)" }, 328 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 329 DT_ATTR_EVOLCMN, DT_VERS_1_0, 330 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" }, 331 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 332 DT_ATTR_EVOLCMN, DT_VERS_1_0, 333 &dt_idops_func, "int(genunix`kmutex_t *)" }, 334 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 335 DT_ATTR_EVOLCMN, DT_VERS_1_0, 336 &dt_idops_func, "int(genunix`kmutex_t *)" }, 337 #else 338 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 339 DT_ATTR_EVOLCMN, DT_VERS_1_0, 340 &dt_idops_func, intmtx_str }, 341 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 342 DT_ATTR_EVOLCMN, DT_VERS_1_0, 343 &dt_idops_func, threadmtx_str }, 344 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 345 DT_ATTR_EVOLCMN, DT_VERS_1_0, 346 &dt_idops_func, intmtx_str }, 347 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 348 DT_ATTR_EVOLCMN, DT_VERS_1_0, 349 &dt_idops_func, intmtx_str }, 350 #endif 351 { "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 352 &dt_idops_func, "uint32_t(uint32_t)" }, 353 { "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 354 &dt_idops_func, "uint64_t(uint64_t)" }, 355 { "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 356 &dt_idops_func, "uint16_t(uint16_t)" }, 357 { "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN, 358 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 359 { "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0, 360 &dt_idops_func, "void()" }, 361 { "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0, 362 &dt_idops_type, "pid_t" }, 363 { "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0, 364 &dt_idops_type, "pid_t" }, 365 { "print", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINT, DT_ATTR_STABCMN, DT_VERS_1_9, 366 &dt_idops_func, "void(@)" }, 367 { "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0, 368 &dt_idops_func, "void(@, ...)" }, 369 { "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0, 370 &dt_idops_func, "void(@, ...)" }, 371 { "printm", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTM, DT_ATTR_STABCMN, DT_VERS_1_0, 372 &dt_idops_func, "void(size_t, uintptr_t *)" }, 373 { "printt", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTT, DT_ATTR_STABCMN, DT_VERS_1_0, 374 &dt_idops_func, "void(size_t, uintptr_t *)" }, 375 { "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC, 376 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 377 { "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD, 378 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 379 { "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME, 380 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 381 { "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV, 382 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 383 { "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF, 384 DT_ATTR_STABCMN, DT_VERS_1_0, 385 &dt_idops_func, "int(pid_t)" }, 386 { "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE, 387 DT_ATTR_STABCMN, DT_VERS_1_0, 388 &dt_idops_func, "void(@, ...)" }, 389 { "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0, 390 &dt_idops_func, "void(int)" }, 391 { "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0, 392 &dt_idops_func, "int()" }, 393 { "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 394 &dt_idops_func, "int(const char *, const char *, [int])" }, 395 #if defined(sun) 396 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 397 DT_ATTR_EVOLCMN, DT_VERS_1_0, 398 &dt_idops_func, "int(genunix`krwlock_t *)" }, 399 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 400 DT_ATTR_EVOLCMN, DT_VERS_1_0, 401 &dt_idops_func, "int(genunix`krwlock_t *)" }, 402 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 403 DT_ATTR_EVOLCMN, DT_VERS_1_0, 404 &dt_idops_func, "int(genunix`krwlock_t *)" }, 405 #else 406 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 407 DT_ATTR_EVOLCMN, DT_VERS_1_0, 408 &dt_idops_func, rwlock_str }, 409 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 410 DT_ATTR_EVOLCMN, DT_VERS_1_0, 411 &dt_idops_func, rwlock_str }, 412 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 413 DT_ATTR_EVOLCMN, DT_VERS_1_0, 414 &dt_idops_func, rwlock_str }, 415 #endif 416 { "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 417 &dt_idops_type, "void" }, 418 { "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN, 419 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" }, 420 { "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE, 421 DT_ATTR_STABCMN, DT_VERS_1_0, 422 &dt_idops_func, "void(int)" }, 423 { "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION, 424 DT_ATTR_STABCMN, DT_VERS_1_0, 425 &dt_idops_func, "int()" }, 426 { "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0, 427 &dt_idops_func, "stack(...)" }, 428 { "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH, 429 DT_ATTR_STABCMN, DT_VERS_1_0, 430 &dt_idops_type, "uint32_t" }, 431 { "stddev", DT_IDENT_AGGFUNC, 0, DTRACEAGG_STDDEV, DT_ATTR_STABCMN, 432 DT_VERS_1_6, &dt_idops_func, "void(@)" }, 433 { "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0, 434 &dt_idops_func, "void()" }, 435 { "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 436 &dt_idops_func, "string(const char *, char)" }, 437 { "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0, 438 &dt_idops_func, "size_t(const char *)" }, 439 { "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0, 440 &dt_idops_func, "string(const char *, const char *)" }, 441 { "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 442 &dt_idops_func, "string(const char *, char)" }, 443 { "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 444 &dt_idops_func, "string(const char *, const char *)" }, 445 { "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1, 446 &dt_idops_func, "string(const char *, const char *)" }, 447 { "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 448 &dt_idops_func, "string(const char *, int, [int])" }, 449 { "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0, 450 &dt_idops_func, "void(@)" }, 451 #if !defined(sun) 452 { "sx_isexclusive", DT_IDENT_FUNC, 0, DIF_SUBR_SX_ISEXCLUSIVE, 453 DT_ATTR_EVOLCMN, DT_VERS_1_0, 454 &dt_idops_func, sxlock_str }, 455 { "sx_shared_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_SHARED_HELD, 456 DT_ATTR_EVOLCMN, DT_VERS_1_0, 457 &dt_idops_func, sxlock_str }, 458 { "sx_exclusive_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_EXCLUSIVE_HELD, 459 DT_ATTR_EVOLCMN, DT_VERS_1_0, 460 &dt_idops_func, sxlock_str }, 461 #endif 462 { "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 463 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 464 { "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0, 465 &dt_idops_func, "void(@, ...)" }, 466 { "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 467 &dt_idops_type, "void" }, 468 { "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0, 469 &dt_idops_type, "id_t" }, 470 { "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP, 471 DT_ATTR_STABCMN, DT_VERS_1_0, 472 &dt_idops_type, "uint64_t" }, 473 { "tolower", DT_IDENT_FUNC, 0, DIF_SUBR_TOLOWER, DT_ATTR_STABCMN, DT_VERS_1_8, 474 &dt_idops_func, "string(const char *)" }, 475 { "toupper", DT_IDENT_FUNC, 0, DIF_SUBR_TOUPPER, DT_ATTR_STABCMN, DT_VERS_1_8, 476 &dt_idops_func, "string(const char *)" }, 477 { "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0, 478 &dt_idops_func, "void(@)" }, 479 { "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM, 480 DT_ATTR_STABCMN, DT_VERS_1_0, 481 &dt_idops_func, "void(@, size_t, ...)" }, 482 { "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN, 483 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 484 { "typeref", DT_IDENT_FUNC, 0, DIF_SUBR_TYPEREF, DT_ATTR_STABCMN, DT_VERS_1_1, 485 &dt_idops_func, "uintptr_t *(void *, size_t, string, size_t)" }, 486 #if defined(sun) 487 { "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN, 488 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 489 #endif 490 { "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN, 491 DT_VERS_1_2, &dt_idops_type, "uint64_t" }, 492 #if defined(sun) 493 { "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 494 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 495 #endif 496 { "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0, 497 &dt_idops_type, "uid_t" }, 498 #if defined(sun) 499 { "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN, 500 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 501 #endif 502 { "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0, 503 &dt_idops_regs, NULL }, 504 { "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 505 &dt_idops_func, "stack(...)" }, 506 { "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH, 507 DT_ATTR_STABCMN, DT_VERS_1_2, 508 &dt_idops_type, "uint32_t" }, 509 #if defined(sun) 510 { "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 511 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 512 #endif 513 { "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP, 514 DT_ATTR_STABCMN, DT_VERS_1_0, 515 &dt_idops_type, "uint64_t" }, 516 { "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP, 517 DT_ATTR_STABCMN, DT_VERS_1_0, 518 &dt_idops_type, "int64_t" }, 519 #if defined(sun) 520 { "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME, 521 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 522 #endif 523 524 #if !defined(sun) 525 { "cpu", DT_IDENT_SCALAR, 0, DIF_VAR_CPU, 526 DT_ATTR_STABCMN, DT_VERS_1_6_3, &dt_idops_type, "int" }, 527 #endif 528 529 { NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL } 530 }; 531 532 /* 533 * Tables of ILP32 intrinsic integer and floating-point type templates to use 534 * to populate the dynamic "C" CTF type container. 535 */ 536 static const dt_intrinsic_t _dtrace_intrinsics_32[] = { 537 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 538 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 539 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 540 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 541 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 542 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 543 { "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 544 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 545 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 546 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 547 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 548 { "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 549 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 550 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 551 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 552 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 553 { "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER }, 554 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 555 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 556 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 557 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 558 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 559 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 560 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 561 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 562 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 563 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 564 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 565 { NULL, { 0, 0, 0 }, 0 } 566 }; 567 568 /* 569 * Tables of LP64 intrinsic integer and floating-point type templates to use 570 * to populate the dynamic "C" CTF type container. 571 */ 572 static const dt_intrinsic_t _dtrace_intrinsics_64[] = { 573 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 574 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 575 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 576 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 577 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 578 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 579 { "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 580 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 581 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 582 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 583 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 584 { "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 585 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 586 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 587 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 588 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 589 { "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER }, 590 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 591 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 592 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 593 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 594 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 595 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 596 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 597 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 598 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 599 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 600 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 601 { NULL, { 0, 0, 0 }, 0 } 602 }; 603 604 /* 605 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container. 606 * These aliases ensure that D definitions can use typical <sys/types.h> names. 607 */ 608 static const dt_typedef_t _dtrace_typedefs_32[] = { 609 { "char", "int8_t" }, 610 { "short", "int16_t" }, 611 { "int", "int32_t" }, 612 { "long long", "int64_t" }, 613 { "int", "intptr_t" }, 614 { "int", "ssize_t" }, 615 { "unsigned char", "uint8_t" }, 616 { "unsigned short", "uint16_t" }, 617 { "unsigned", "uint32_t" }, 618 { "unsigned long long", "uint64_t" }, 619 { "unsigned char", "uchar_t" }, 620 { "unsigned short", "ushort_t" }, 621 { "unsigned", "uint_t" }, 622 { "unsigned long", "ulong_t" }, 623 { "unsigned long long", "u_longlong_t" }, 624 { "int", "ptrdiff_t" }, 625 { "unsigned", "uintptr_t" }, 626 { "unsigned", "size_t" }, 627 { "long", "id_t" }, 628 { "long", "pid_t" }, 629 { NULL, NULL } 630 }; 631 632 /* 633 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container. 634 * These aliases ensure that D definitions can use typical <sys/types.h> names. 635 */ 636 static const dt_typedef_t _dtrace_typedefs_64[] = { 637 { "char", "int8_t" }, 638 { "short", "int16_t" }, 639 { "int", "int32_t" }, 640 { "long", "int64_t" }, 641 { "long", "intptr_t" }, 642 { "long", "ssize_t" }, 643 { "unsigned char", "uint8_t" }, 644 { "unsigned short", "uint16_t" }, 645 { "unsigned", "uint32_t" }, 646 { "unsigned long", "uint64_t" }, 647 { "unsigned char", "uchar_t" }, 648 { "unsigned short", "ushort_t" }, 649 { "unsigned", "uint_t" }, 650 { "unsigned long", "ulong_t" }, 651 { "unsigned long long", "u_longlong_t" }, 652 { "long", "ptrdiff_t" }, 653 { "unsigned long", "uintptr_t" }, 654 { "unsigned long", "size_t" }, 655 { "int", "id_t" }, 656 { "int", "pid_t" }, 657 { NULL, NULL } 658 }; 659 660 /* 661 * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[] 662 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 663 */ 664 static const dt_intdesc_t _dtrace_ints_32[] = { 665 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 666 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 667 { "long", NULL, CTF_ERR, 0x7fffffffULL }, 668 { "unsigned long", NULL, CTF_ERR, 0xffffffffULL }, 669 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 670 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 671 }; 672 673 /* 674 * Tables of LP64 integer type templates used to populate the dtp->dt_ints[] 675 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 676 */ 677 static const dt_intdesc_t _dtrace_ints_64[] = { 678 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 679 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 680 { "long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 681 { "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL }, 682 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 683 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 684 }; 685 686 /* 687 * Table of macro variable templates used to populate the macro identifier hash 688 * when a new dtrace client open occurs. Values are set by dtrace_update(). 689 */ 690 static const dt_ident_t _dtrace_macros[] = { 691 { "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 692 { "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 693 { "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 694 { "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 695 { "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 696 { "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 697 { "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 698 { "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 699 { "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 700 { "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 701 { "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 702 { NULL, 0, 0, 0, { 0, 0, 0 }, 0 } 703 }; 704 705 /* 706 * Hard-wired definition string to be compiled and cached every time a new 707 * DTrace library handle is initialized. This string should only be used to 708 * contain definitions that should be present regardless of DTRACE_O_NOLIBS. 709 */ 710 static const char _dtrace_hardwire[] = "\ 711 inline long NULL = 0; \n\ 712 #pragma D binding \"1.0\" NULL\n\ 713 "; 714 715 /* 716 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV. 717 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel. 718 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are 719 * relying on the fact that when running dtrace(1M), isaexec will invoke the 720 * binary with the same bitness as the kernel, which is what we want by default 721 * when generating our DIF. The user can override the choice using oflags. 722 */ 723 static const dtrace_conf_t _dtrace_conf = { 724 DIF_VERSION, /* dtc_difversion */ 725 DIF_DIR_NREGS, /* dtc_difintregs */ 726 DIF_DTR_NREGS, /* dtc_diftupregs */ 727 CTF_MODEL_NATIVE /* dtc_ctfmodel */ 728 }; 729 730 const dtrace_attribute_t _dtrace_maxattr = { 731 DTRACE_STABILITY_MAX, 732 DTRACE_STABILITY_MAX, 733 DTRACE_CLASS_MAX 734 }; 735 736 const dtrace_attribute_t _dtrace_defattr = { 737 DTRACE_STABILITY_STABLE, 738 DTRACE_STABILITY_STABLE, 739 DTRACE_CLASS_COMMON 740 }; 741 742 const dtrace_attribute_t _dtrace_symattr = { 743 DTRACE_STABILITY_PRIVATE, 744 DTRACE_STABILITY_PRIVATE, 745 DTRACE_CLASS_UNKNOWN 746 }; 747 748 const dtrace_attribute_t _dtrace_typattr = { 749 DTRACE_STABILITY_PRIVATE, 750 DTRACE_STABILITY_PRIVATE, 751 DTRACE_CLASS_UNKNOWN 752 }; 753 754 const dtrace_attribute_t _dtrace_prvattr = { 755 DTRACE_STABILITY_PRIVATE, 756 DTRACE_STABILITY_PRIVATE, 757 DTRACE_CLASS_UNKNOWN 758 }; 759 760 const dtrace_pattr_t _dtrace_prvdesc = { 761 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 762 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 763 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 764 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 765 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 766 }; 767 768 #if defined(sun) 769 const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */ 770 const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */ 771 #else 772 const char *_dtrace_defcpp = "cpp"; /* default cpp(1) to invoke */ 773 const char *_dtrace_defld = "ld"; /* default ld(1) to invoke */ 774 #endif 775 776 const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */ 777 #if defined(sun) 778 const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */ 779 #else 780 const char *_dtrace_provdir = "/dev/dtrace"; /* provider directory */ 781 #endif 782 783 int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */ 784 int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */ 785 uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */ 786 uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */ 787 uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */ 788 uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */ 789 size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */ 790 int _dtrace_argmax = 32; /* default maximum number of probe arguments */ 791 792 int _dtrace_debug = 0; /* debug messages enabled (off) */ 793 const char *const _dtrace_version = DT_VERS_STRING; /* API version string */ 794 int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */ 795 796 typedef struct dt_fdlist { 797 int *df_fds; /* array of provider driver file descriptors */ 798 uint_t df_ents; /* number of valid elements in df_fds[] */ 799 uint_t df_size; /* size of df_fds[] */ 800 } dt_fdlist_t; 801 802 #if defined(sun) 803 #pragma init(_dtrace_init) 804 #else 805 void _dtrace_init(void) __attribute__ ((constructor)); 806 #endif 807 void 808 _dtrace_init(void) 809 { 810 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL; 811 812 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) { 813 if (rd_init(_dtrace_rdvers) == RD_OK) 814 break; 815 } 816 #if defined(__i386__) 817 /* make long doubles 64 bits -sson */ 818 (void) fpsetprec(FP_PE); 819 #endif 820 } 821 822 static dtrace_hdl_t * 823 set_open_errno(dtrace_hdl_t *dtp, int *errp, int err) 824 { 825 if (dtp != NULL) 826 dtrace_close(dtp); 827 if (errp != NULL) 828 *errp = err; 829 return (NULL); 830 } 831 832 static void 833 dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp) 834 { 835 dt_provmod_t *prov; 836 char path[PATH_MAX]; 837 int fd; 838 #if defined(sun) 839 struct dirent *dp, *ep; 840 DIR *dirp; 841 842 if ((dirp = opendir(_dtrace_provdir)) == NULL) 843 return; /* failed to open directory; just skip it */ 844 845 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1); 846 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1); 847 848 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) { 849 if (dp->d_name[0] == '.') 850 continue; /* skip "." and ".." */ 851 852 if (dfp->df_ents == dfp->df_size) { 853 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 854 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 855 856 if (fds == NULL) 857 break; /* skip the rest of this directory */ 858 859 dfp->df_fds = fds; 860 dfp->df_size = size; 861 } 862 863 (void) snprintf(path, sizeof (path), "%s/%s", 864 _dtrace_provdir, dp->d_name); 865 866 if ((fd = open(path, O_RDONLY)) == -1) 867 continue; /* failed to open driver; just skip it */ 868 869 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 870 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) { 871 free(prov); 872 (void) close(fd); 873 break; 874 } 875 876 (void) strcpy(prov->dp_name, dp->d_name); 877 prov->dp_next = *provmod; 878 *provmod = prov; 879 880 dt_dprintf("opened provider %s\n", dp->d_name); 881 dfp->df_fds[dfp->df_ents++] = fd; 882 } 883 884 (void) closedir(dirp); 885 #else 886 char *p; 887 char *p1; 888 char *p_providers = NULL; 889 int error; 890 size_t len = 0; 891 892 /* 893 * Loop to allocate/reallocate memory for the string of provider 894 * names and retry: 895 */ 896 while(1) { 897 /* 898 * The first time around, get the string length. The next time, 899 * hopefully we've allocated enough memory. 900 */ 901 error = sysctlbyname("debug.dtrace.providers",p_providers,&len,NULL,0); 902 if (len == 0) 903 /* No providers? That's strange. Where's dtrace? */ 904 break; 905 else if (error == 0 && p_providers == NULL) { 906 /* 907 * Allocate the initial memory which should be enough 908 * unless another provider loads before we have 909 * time to go back and get the string. 910 */ 911 if ((p_providers = malloc(len)) == NULL) 912 /* How do we report errors here? */ 913 return; 914 } else if (error == -1 && errno == ENOMEM) { 915 /* 916 * The current buffer isn't large enough, so 917 * reallocate it. We normally won't need to do this 918 * because providers aren't being loaded all the time. 919 */ 920 if ((p = realloc(p_providers,len)) == NULL) 921 /* How do we report errors here? */ 922 return; 923 p_providers = p; 924 } else 925 break; 926 } 927 928 /* Check if we got a string of provider names: */ 929 if (error == 0 && len > 0 && p_providers != NULL) { 930 p = p_providers; 931 932 /* 933 * Parse the string containing the space separated 934 * provider names. 935 */ 936 while ((p1 = strsep(&p," ")) != NULL) { 937 if (dfp->df_ents == dfp->df_size) { 938 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 939 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 940 941 if (fds == NULL) 942 break; 943 944 dfp->df_fds = fds; 945 dfp->df_size = size; 946 } 947 948 (void) snprintf(path, sizeof (path), "/dev/dtrace/%s", p1); 949 950 if ((fd = open(path, O_RDONLY)) == -1) 951 continue; /* failed to open driver; just skip it */ 952 953 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 954 (prov->dp_name = malloc(strlen(p1) + 1)) == NULL) { 955 free(prov); 956 (void) close(fd); 957 break; 958 } 959 960 (void) strcpy(prov->dp_name, p1); 961 prov->dp_next = *provmod; 962 *provmod = prov; 963 964 dt_dprintf("opened provider %s\n", p1); 965 dfp->df_fds[dfp->df_ents++] = fd; 966 } 967 } 968 if (p_providers != NULL) 969 free(p_providers); 970 #endif 971 } 972 973 static void 974 dt_provmod_destroy(dt_provmod_t **provmod) 975 { 976 dt_provmod_t *next, *current; 977 978 for (current = *provmod; current != NULL; current = next) { 979 next = current->dp_next; 980 free(current->dp_name); 981 free(current); 982 } 983 984 *provmod = NULL; 985 } 986 987 #if defined(sun) 988 static const char * 989 dt_get_sysinfo(int cmd, char *buf, size_t len) 990 { 991 ssize_t rv = sysinfo(cmd, buf, len); 992 char *p = buf; 993 994 if (rv < 0 || rv > len) 995 (void) snprintf(buf, len, "%s", "Unknown"); 996 997 while ((p = strchr(p, '.')) != NULL) 998 *p++ = '_'; 999 1000 return (buf); 1001 } 1002 #endif 1003 1004 static dtrace_hdl_t * 1005 dt_vopen(int version, int flags, int *errp, 1006 const dtrace_vector_t *vector, void *arg) 1007 { 1008 dtrace_hdl_t *dtp = NULL; 1009 int dtfd = -1, ftfd = -1, fterr = 0; 1010 dtrace_prog_t *pgp; 1011 dt_module_t *dmp; 1012 dt_provmod_t *provmod = NULL; 1013 int i, err; 1014 struct rlimit rl; 1015 1016 const dt_intrinsic_t *dinp; 1017 const dt_typedef_t *dtyp; 1018 const dt_ident_t *idp; 1019 1020 dtrace_typeinfo_t dtt; 1021 ctf_funcinfo_t ctc; 1022 ctf_arinfo_t ctr; 1023 1024 dt_fdlist_t df = { NULL, 0, 0 }; 1025 1026 char isadef[32], utsdef[32]; 1027 char s1[64], s2[64]; 1028 1029 if (version <= 0) 1030 return (set_open_errno(dtp, errp, EINVAL)); 1031 1032 if (version > DTRACE_VERSION) 1033 return (set_open_errno(dtp, errp, EDT_VERSION)); 1034 1035 if (version < DTRACE_VERSION) { 1036 /* 1037 * Currently, increasing the library version number is used to 1038 * denote a binary incompatible change. That is, a consumer 1039 * of the library cannot run on a version of the library with 1040 * a higher DTRACE_VERSION number than the consumer compiled 1041 * against. Once the library API has been committed to, 1042 * backwards binary compatibility will be required; at that 1043 * time, this check should change to return EDT_OVERSION only 1044 * if the specified version number is less than the version 1045 * number at the time of interface commitment. 1046 */ 1047 return (set_open_errno(dtp, errp, EDT_OVERSION)); 1048 } 1049 1050 if (flags & ~DTRACE_O_MASK) 1051 return (set_open_errno(dtp, errp, EINVAL)); 1052 1053 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32)) 1054 return (set_open_errno(dtp, errp, EINVAL)); 1055 1056 if (vector == NULL && arg != NULL) 1057 return (set_open_errno(dtp, errp, EINVAL)); 1058 1059 if (elf_version(EV_CURRENT) == EV_NONE) 1060 return (set_open_errno(dtp, errp, EDT_ELFVERSION)); 1061 1062 if (vector != NULL || (flags & DTRACE_O_NODEV)) 1063 goto alloc; /* do not attempt to open dtrace device */ 1064 1065 /* 1066 * Before we get going, crank our limit on file descriptors up to the 1067 * hard limit. This is to allow for the fact that libproc keeps file 1068 * descriptors to objects open for the lifetime of the proc handle; 1069 * without raising our hard limit, we would have an acceptably small 1070 * bound on the number of processes that we could concurrently 1071 * instrument with the pid provider. 1072 */ 1073 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) { 1074 rl.rlim_cur = rl.rlim_max; 1075 (void) setrlimit(RLIMIT_NOFILE, &rl); 1076 } 1077 1078 /* 1079 * Get the device path of each of the providers. We hold them open 1080 * in the df.df_fds list until we open the DTrace driver itself, 1081 * allowing us to see all of the probes provided on this system. Once 1082 * we have the DTrace driver open, we can safely close all the providers 1083 * now that they have registered with the framework. 1084 */ 1085 dt_provmod_open(&provmod, &df); 1086 1087 dtfd = open("/dev/dtrace/dtrace", O_RDWR); 1088 err = errno; /* save errno from opening dtfd */ 1089 #if defined(__FreeBSD__) 1090 /* 1091 * Automatically load the 'dtraceall' module if we couldn't open the 1092 * char device. 1093 */ 1094 if (err == ENOENT && modfind("dtraceall") < 0) { 1095 kldload("dtraceall"); /* ignore the error */ 1096 dtfd = open("/dev/dtrace/dtrace", O_RDWR); 1097 err = errno; 1098 } 1099 #endif 1100 #if defined(sun) 1101 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR); 1102 #else 1103 ftfd = open("/dev/dtrace/fasttrap", O_RDWR); 1104 #endif 1105 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */ 1106 1107 while (df.df_ents-- != 0) 1108 (void) close(df.df_fds[df.df_ents]); 1109 1110 free(df.df_fds); 1111 1112 /* 1113 * If we failed to open the dtrace device, fail dtrace_open(). 1114 * We convert some kernel errnos to custom libdtrace errnos to 1115 * improve the resulting message from the usual strerror(). 1116 */ 1117 if (dtfd == -1) { 1118 dt_provmod_destroy(&provmod); 1119 switch (err) { 1120 case ENOENT: 1121 err = EDT_NOENT; 1122 break; 1123 case EBUSY: 1124 err = EDT_BUSY; 1125 break; 1126 case EACCES: 1127 err = EDT_ACCESS; 1128 break; 1129 } 1130 return (set_open_errno(dtp, errp, err)); 1131 } 1132 1133 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC); 1134 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC); 1135 1136 alloc: 1137 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL) 1138 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1139 1140 bzero(dtp, sizeof (dtrace_hdl_t)); 1141 dtp->dt_oflags = flags; 1142 #if defined(sun) 1143 dtp->dt_prcmode = DT_PROC_STOP_PREINIT; 1144 #else 1145 dtp->dt_prcmode = DT_PROC_STOP_MAIN; 1146 #endif 1147 dtp->dt_linkmode = DT_LINK_KERNEL; 1148 dtp->dt_linktype = DT_LTYP_ELF; 1149 dtp->dt_xlatemode = DT_XL_STATIC; 1150 dtp->dt_stdcmode = DT_STDC_XA; 1151 dtp->dt_version = version; 1152 dtp->dt_fd = dtfd; 1153 dtp->dt_ftfd = ftfd; 1154 dtp->dt_fterr = fterr; 1155 dtp->dt_cdefs_fd = -1; 1156 dtp->dt_ddefs_fd = -1; 1157 #if defined(sun) 1158 dtp->dt_stdout_fd = -1; 1159 #else 1160 dtp->dt_freopen_fp = NULL; 1161 #endif 1162 dtp->dt_modbuckets = _dtrace_strbuckets; 1163 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *)); 1164 dtp->dt_provbuckets = _dtrace_strbuckets; 1165 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *)); 1166 dt_proc_hash_create(dtp); 1167 dtp->dt_vmax = DT_VERS_LATEST; 1168 dtp->dt_cpp_path = strdup(_dtrace_defcpp); 1169 dtp->dt_cpp_argv = malloc(sizeof (char *)); 1170 dtp->dt_cpp_argc = 1; 1171 dtp->dt_cpp_args = 1; 1172 dtp->dt_ld_path = strdup(_dtrace_defld); 1173 dtp->dt_provmod = provmod; 1174 dtp->dt_vector = vector; 1175 dtp->dt_varg = arg; 1176 dt_dof_init(dtp); 1177 (void) uname(&dtp->dt_uts); 1178 1179 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL || 1180 dtp->dt_procs == NULL || dtp->dt_ld_path == NULL || 1181 dtp->dt_cpp_path == NULL || dtp->dt_cpp_argv == NULL) 1182 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1183 1184 for (i = 0; i < DTRACEOPT_MAX; i++) 1185 dtp->dt_options[i] = DTRACEOPT_UNSET; 1186 1187 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path); 1188 1189 #if defined(sun) 1190 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u", 1191 (uint_t)(sizeof (void *) * NBBY)); 1192 1193 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s", 1194 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)), 1195 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2))); 1196 1197 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL || 1198 dt_cpp_add_arg(dtp, "-D__unix") == NULL || 1199 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL || 1200 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL || 1201 dt_cpp_add_arg(dtp, isadef) == NULL || 1202 dt_cpp_add_arg(dtp, utsdef) == NULL) 1203 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1204 #endif 1205 1206 if (flags & DTRACE_O_NODEV) 1207 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf)); 1208 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0) 1209 return (set_open_errno(dtp, errp, errno)); 1210 1211 if (flags & DTRACE_O_LP64) 1212 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64; 1213 else if (flags & DTRACE_O_ILP32) 1214 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32; 1215 1216 #ifdef __sparc 1217 /* 1218 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h> 1219 * and __sparcv9 is defined if we are doing a 64-bit compile. 1220 */ 1221 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL) 1222 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1223 1224 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 && 1225 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL) 1226 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1227 #endif 1228 1229 #if defined(sun) 1230 #ifdef __x86 1231 /* 1232 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit 1233 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC, 1234 * they are defined exclusive of one another (see PSARC 2004/619). 1235 */ 1236 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 1237 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL) 1238 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1239 } else { 1240 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL) 1241 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1242 } 1243 #endif 1244 #else 1245 #if defined(__amd64__) || defined(__i386__) 1246 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 1247 if (dt_cpp_add_arg(dtp, "-m64") == NULL) 1248 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1249 } else { 1250 if (dt_cpp_add_arg(dtp, "-m32") == NULL) 1251 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1252 } 1253 #endif 1254 #endif 1255 1256 if (dtp->dt_conf.dtc_difversion < DIF_VERSION) 1257 return (set_open_errno(dtp, errp, EDT_DIFVERS)); 1258 1259 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) 1260 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32)); 1261 else 1262 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64)); 1263 1264 /* 1265 * On FreeBSD the kernel module name can't be hard-coded. The 1266 * 'kern.bootfile' sysctl value tells us exactly which file is being 1267 * used as the kernel. 1268 */ 1269 #if !defined(sun) 1270 { 1271 char bootfile[MAXPATHLEN]; 1272 char *p; 1273 int i; 1274 size_t len = sizeof(bootfile); 1275 1276 /* This call shouldn't fail, but use a default just in case. */ 1277 if (sysctlbyname("kern.bootfile", bootfile, &len, NULL, 0) != 0) 1278 strlcpy(bootfile, "kernel", sizeof(bootfile)); 1279 1280 if ((p = strrchr(bootfile, '/')) != NULL) 1281 p++; 1282 else 1283 p = bootfile; 1284 1285 /* 1286 * Format the global variables based on the kernel module name. 1287 */ 1288 snprintf(curthread_str, sizeof(curthread_str), "%s`struct thread *",p); 1289 snprintf(intmtx_str, sizeof(intmtx_str), "int(%s`struct mtx *)",p); 1290 snprintf(threadmtx_str, sizeof(threadmtx_str), "struct thread *(%s`struct mtx *)",p); 1291 snprintf(rwlock_str, sizeof(rwlock_str), "int(%s`struct rwlock *)",p); 1292 snprintf(sxlock_str, sizeof(sxlock_str), "int(%s`struct sxlock *)",p); 1293 } 1294 #endif 1295 1296 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX); 1297 dtp->dt_aggs = dt_idhash_create("aggregation", NULL, 1298 DTRACE_AGGVARIDNONE + 1, UINT_MAX); 1299 1300 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals, 1301 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1302 1303 dtp->dt_tls = dt_idhash_create("thread local", NULL, 1304 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1305 1306 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL || 1307 dtp->dt_globals == NULL || dtp->dt_tls == NULL) 1308 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1309 1310 /* 1311 * Populate the dt_macros identifier hash table by hand: we can't use 1312 * the dt_idhash_populate() mechanism because we're not yet compiling 1313 * and dtrace_update() needs to immediately reference these idents. 1314 */ 1315 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) { 1316 if (dt_idhash_insert(dtp->dt_macros, idp->di_name, 1317 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr, 1318 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw, 1319 idp->di_iarg, 0) == NULL) 1320 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1321 } 1322 1323 /* 1324 * Update the module list using /system/object and load the values for 1325 * the macro variable definitions according to the current process. 1326 */ 1327 dtrace_update(dtp); 1328 1329 /* 1330 * Select the intrinsics and typedefs we want based on the data model. 1331 * The intrinsics are under "C". The typedefs are added under "D". 1332 */ 1333 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) { 1334 dinp = _dtrace_intrinsics_32; 1335 dtyp = _dtrace_typedefs_32; 1336 } else { 1337 dinp = _dtrace_intrinsics_64; 1338 dtyp = _dtrace_typedefs_64; 1339 } 1340 1341 /* 1342 * Create a dynamic CTF container under the "C" scope for intrinsic 1343 * types and types defined in ANSI-C header files that are included. 1344 */ 1345 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL) 1346 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1347 1348 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1349 return (set_open_errno(dtp, errp, EDT_CTF)); 1350 1351 dt_dprintf("created CTF container for %s (%p)\n", 1352 dmp->dm_name, (void *)dmp->dm_ctfp); 1353 1354 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1355 ctf_setspecific(dmp->dm_ctfp, dmp); 1356 1357 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1358 dmp->dm_modid = -1; /* no module ID */ 1359 1360 /* 1361 * Fill the dynamic "C" CTF container with all of the intrinsic 1362 * integer and floating-point types appropriate for this data model. 1363 */ 1364 for (; dinp->din_name != NULL; dinp++) { 1365 if (dinp->din_kind == CTF_K_INTEGER) { 1366 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT, 1367 dinp->din_name, &dinp->din_data); 1368 } else { 1369 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT, 1370 dinp->din_name, &dinp->din_data); 1371 } 1372 1373 if (err == CTF_ERR) { 1374 dt_dprintf("failed to add %s to C container: %s\n", 1375 dinp->din_name, ctf_errmsg( 1376 ctf_errno(dmp->dm_ctfp))); 1377 return (set_open_errno(dtp, errp, EDT_CTF)); 1378 } 1379 } 1380 1381 if (ctf_update(dmp->dm_ctfp) != 0) { 1382 dt_dprintf("failed to update C container: %s\n", 1383 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1384 return (set_open_errno(dtp, errp, EDT_CTF)); 1385 } 1386 1387 /* 1388 * Add intrinsic pointer types that are needed to initialize printf 1389 * format dictionary types (see table in dt_printf.c). 1390 */ 1391 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1392 ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1393 1394 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1395 ctf_lookup_by_name(dmp->dm_ctfp, "char")); 1396 1397 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1398 ctf_lookup_by_name(dmp->dm_ctfp, "int")); 1399 1400 if (ctf_update(dmp->dm_ctfp) != 0) { 1401 dt_dprintf("failed to update C container: %s\n", 1402 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1403 return (set_open_errno(dtp, errp, EDT_CTF)); 1404 } 1405 1406 /* 1407 * Create a dynamic CTF container under the "D" scope for types that 1408 * are defined by the D program itself or on-the-fly by the D compiler. 1409 * The "D" CTF container is a child of the "C" CTF container. 1410 */ 1411 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL) 1412 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1413 1414 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1415 return (set_open_errno(dtp, errp, EDT_CTF)); 1416 1417 dt_dprintf("created CTF container for %s (%p)\n", 1418 dmp->dm_name, (void *)dmp->dm_ctfp); 1419 1420 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1421 ctf_setspecific(dmp->dm_ctfp, dmp); 1422 1423 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1424 dmp->dm_modid = -1; /* no module ID */ 1425 1426 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) { 1427 dt_dprintf("failed to import D parent container: %s\n", 1428 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1429 return (set_open_errno(dtp, errp, EDT_CTF)); 1430 } 1431 1432 /* 1433 * Fill the dynamic "D" CTF container with all of the built-in typedefs 1434 * that we need to use for our D variable and function definitions. 1435 * This ensures that basic inttypes.h names are always available to us. 1436 */ 1437 for (; dtyp->dty_src != NULL; dtyp++) { 1438 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1439 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp, 1440 dtyp->dty_src)) == CTF_ERR) { 1441 dt_dprintf("failed to add typedef %s %s to D " 1442 "container: %s", dtyp->dty_src, dtyp->dty_dst, 1443 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1444 return (set_open_errno(dtp, errp, EDT_CTF)); 1445 } 1446 } 1447 1448 /* 1449 * Insert a CTF ID corresponding to a pointer to a type of kind 1450 * CTF_K_FUNCTION we can use in the compiler for function pointers. 1451 * CTF treats all function pointers as "int (*)()" so we only need one. 1452 */ 1453 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int"); 1454 ctc.ctc_argc = 0; 1455 ctc.ctc_flags = 0; 1456 1457 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp, 1458 CTF_ADD_ROOT, &ctc, NULL); 1459 1460 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp, 1461 CTF_ADD_ROOT, dtp->dt_type_func); 1462 1463 /* 1464 * We also insert CTF definitions for the special D intrinsic types 1465 * string and <DYN> into the D container. The string type is added 1466 * as a typedef of char[n]. The <DYN> type is an alias for void. 1467 * We compare types to these special CTF ids throughout the compiler. 1468 */ 1469 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char"); 1470 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long"); 1471 ctr.ctr_nelems = _dtrace_strsize; 1472 1473 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1474 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr)); 1475 1476 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1477 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1478 1479 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1480 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1481 1482 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1483 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1484 1485 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1486 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1487 1488 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR || 1489 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR || 1490 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR || 1491 dtp->dt_type_usymaddr == CTF_ERR) { 1492 dt_dprintf("failed to add intrinsic to D container: %s\n", 1493 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1494 return (set_open_errno(dtp, errp, EDT_CTF)); 1495 } 1496 1497 if (ctf_update(dmp->dm_ctfp) != 0) { 1498 dt_dprintf("failed update D container: %s\n", 1499 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1500 return (set_open_errno(dtp, errp, EDT_CTF)); 1501 } 1502 1503 /* 1504 * Initialize the integer description table used to convert integer 1505 * constants to the appropriate types. Refer to the comments above 1506 * dt_node_int() for a complete description of how this table is used. 1507 */ 1508 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) { 1509 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY, 1510 dtp->dt_ints[i].did_name, &dtt) != 0) { 1511 dt_dprintf("failed to lookup integer type %s: %s\n", 1512 dtp->dt_ints[i].did_name, 1513 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1514 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1515 } 1516 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp; 1517 dtp->dt_ints[i].did_type = dtt.dtt_type; 1518 } 1519 1520 /* 1521 * Now that we've created the "C" and "D" containers, move them to the 1522 * start of the module list so that these types and symbols are found 1523 * first (for stability) when iterating through the module list. 1524 */ 1525 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs); 1526 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs); 1527 1528 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs); 1529 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs); 1530 1531 if (dt_pfdict_create(dtp) == -1) 1532 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1533 1534 /* 1535 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default 1536 * because without /dev/dtrace open, we will not be able to load the 1537 * names and attributes of any providers or probes from the kernel. 1538 */ 1539 if (flags & DTRACE_O_NODEV) 1540 dtp->dt_cflags |= DTRACE_C_ZDEFS; 1541 1542 /* 1543 * Load hard-wired inlines into the definition cache by calling the 1544 * compiler on the raw definition string defined above. 1545 */ 1546 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire, 1547 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) { 1548 dt_dprintf("failed to load hard-wired definitions: %s\n", 1549 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1550 return (set_open_errno(dtp, errp, EDT_HARDWIRE)); 1551 } 1552 1553 dt_program_destroy(dtp, pgp); 1554 1555 /* 1556 * Set up the default DTrace library path. Once set, the next call to 1557 * dt_compile() will compile all the libraries. We intentionally defer 1558 * library processing to improve overhead for clients that don't ever 1559 * compile, and to provide better error reporting (because the full 1560 * reporting of compiler errors requires dtrace_open() to succeed). 1561 */ 1562 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0) 1563 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1564 1565 return (dtp); 1566 } 1567 1568 dtrace_hdl_t * 1569 dtrace_open(int version, int flags, int *errp) 1570 { 1571 return (dt_vopen(version, flags, errp, NULL, NULL)); 1572 } 1573 1574 dtrace_hdl_t * 1575 dtrace_vopen(int version, int flags, int *errp, 1576 const dtrace_vector_t *vector, void *arg) 1577 { 1578 return (dt_vopen(version, flags, errp, vector, arg)); 1579 } 1580 1581 void 1582 dtrace_close(dtrace_hdl_t *dtp) 1583 { 1584 dt_ident_t *idp, *ndp; 1585 dt_module_t *dmp; 1586 dt_provider_t *pvp; 1587 dtrace_prog_t *pgp; 1588 dt_xlator_t *dxp; 1589 dt_dirpath_t *dirp; 1590 int i; 1591 1592 if (dtp->dt_procs != NULL) 1593 dt_proc_hash_destroy(dtp); 1594 1595 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL) 1596 dt_program_destroy(dtp, pgp); 1597 1598 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL) 1599 dt_xlator_destroy(dtp, dxp); 1600 1601 dt_free(dtp, dtp->dt_xlatormap); 1602 1603 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) { 1604 ndp = idp->di_next; 1605 dt_ident_destroy(idp); 1606 } 1607 1608 if (dtp->dt_macros != NULL) 1609 dt_idhash_destroy(dtp->dt_macros); 1610 if (dtp->dt_aggs != NULL) 1611 dt_idhash_destroy(dtp->dt_aggs); 1612 if (dtp->dt_globals != NULL) 1613 dt_idhash_destroy(dtp->dt_globals); 1614 if (dtp->dt_tls != NULL) 1615 dt_idhash_destroy(dtp->dt_tls); 1616 1617 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL) 1618 dt_module_destroy(dtp, dmp); 1619 1620 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL) 1621 dt_provider_destroy(dtp, pvp); 1622 1623 if (dtp->dt_fd != -1) 1624 (void) close(dtp->dt_fd); 1625 if (dtp->dt_ftfd != -1) 1626 (void) close(dtp->dt_ftfd); 1627 if (dtp->dt_cdefs_fd != -1) 1628 (void) close(dtp->dt_cdefs_fd); 1629 if (dtp->dt_ddefs_fd != -1) 1630 (void) close(dtp->dt_ddefs_fd); 1631 #if defined(sun) 1632 if (dtp->dt_stdout_fd != -1) 1633 (void) close(dtp->dt_stdout_fd); 1634 #else 1635 if (dtp->dt_freopen_fp != NULL) 1636 (void) fclose(dtp->dt_freopen_fp); 1637 #endif 1638 1639 dt_epid_destroy(dtp); 1640 dt_aggid_destroy(dtp); 1641 dt_format_destroy(dtp); 1642 dt_strdata_destroy(dtp); 1643 dt_buffered_destroy(dtp); 1644 dt_aggregate_destroy(dtp); 1645 dt_pfdict_destroy(dtp); 1646 dt_provmod_destroy(&dtp->dt_provmod); 1647 dt_dof_fini(dtp); 1648 1649 for (i = 1; i < dtp->dt_cpp_argc; i++) 1650 free(dtp->dt_cpp_argv[i]); 1651 1652 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) { 1653 dt_list_delete(&dtp->dt_lib_path, dirp); 1654 free(dirp->dir_path); 1655 free(dirp); 1656 } 1657 1658 free(dtp->dt_cpp_argv); 1659 free(dtp->dt_cpp_path); 1660 free(dtp->dt_ld_path); 1661 1662 free(dtp->dt_mods); 1663 free(dtp->dt_provs); 1664 free(dtp); 1665 } 1666 1667 int 1668 dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods) 1669 { 1670 dt_provmod_t *prov; 1671 int i = 0; 1672 1673 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) { 1674 if (i < nmods) 1675 mods[i] = prov->dp_name; 1676 } 1677 1678 return (i); 1679 } 1680 1681 int 1682 dtrace_ctlfd(dtrace_hdl_t *dtp) 1683 { 1684 return (dtp->dt_fd); 1685 } 1686