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_1_9_2 DT_VERSION_NUMBER(1, 9, 2) /* FreeBSD specific */ 126 #define DT_VERS_1_10 DT_VERSION_NUMBER(1, 10, 0) 127 #define DT_VERS_1_11 DT_VERSION_NUMBER(1, 11, 0) 128 #define DT_VERS_1_12 DT_VERSION_NUMBER(1, 12, 0) 129 #define DT_VERS_1_12_1 DT_VERSION_NUMBER(1, 12, 1) 130 #define DT_VERS_LATEST DT_VERS_1_9_2 131 #define DT_VERS_STRING "Sun D 1.9.2" 132 133 const dt_version_t _dtrace_versions[] = { 134 DT_VERS_1_0, /* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */ 135 DT_VERS_1_1, /* D API 1.1.0 Solaris Express 6/05 */ 136 DT_VERS_1_2, /* D API 1.2.0 Solaris 10 Update 1 */ 137 DT_VERS_1_2_1, /* D API 1.2.1 Solaris Express 4/06 */ 138 DT_VERS_1_2_2, /* D API 1.2.2 Solaris Express 6/06 */ 139 DT_VERS_1_3, /* D API 1.3 Solaris Express 10/06 */ 140 DT_VERS_1_4, /* D API 1.4 Solaris Express 2/07 */ 141 DT_VERS_1_4_1, /* D API 1.4.1 Solaris Express 4/07 */ 142 DT_VERS_1_5, /* D API 1.5 Solaris Express 7/07 */ 143 DT_VERS_1_6, /* D API 1.6 */ 144 DT_VERS_1_6_1, /* D API 1.6.1 */ 145 DT_VERS_1_6_2, /* D API 1.6.2 */ 146 DT_VERS_1_6_3, /* D API 1.6.3 */ 147 DT_VERS_1_7, /* D API 1.7 */ 148 DT_VERS_1_7_1, /* D API 1.7.1 */ 149 DT_VERS_1_8, /* D API 1.8 */ 150 DT_VERS_1_8_1, /* D API 1.8.1 */ 151 DT_VERS_1_9, /* D API 1.9 */ 152 DT_VERS_1_9_1, /* D API 1.9.1 */ 153 DT_VERS_1_9_2, /* D API 1.9.1 */ 154 DT_VERS_1_10, /* D API 1.10 */ 155 DT_VERS_1_11, /* D API 1.11 */ 156 DT_VERS_1_12, /* D API 1.12 */ 157 DT_VERS_1_12_1, /* D API 1.12.1 */ 158 0 159 }; 160 161 /* 162 * Global variables that are formatted on FreeBSD based on the kernel file name. 163 */ 164 #if !defined(sun) 165 static char curthread_str[MAXPATHLEN]; 166 static char intmtx_str[MAXPATHLEN]; 167 static char threadmtx_str[MAXPATHLEN]; 168 static char rwlock_str[MAXPATHLEN]; 169 static char sxlock_str[MAXPATHLEN]; 170 #endif 171 172 /* 173 * Table of global identifiers. This is used to populate the global identifier 174 * hash when a new dtrace client open occurs. For more info see dt_ident.h. 175 * The global identifiers that represent functions use the dt_idops_func ops 176 * and specify the private data pointer as a prototype string which is parsed 177 * when the identifier is first encountered. These prototypes look like ANSI 178 * C function prototypes except that the special symbol "@" can be used as a 179 * wildcard to represent a single parameter of any type (i.e. any dt_node_t). 180 * The standard "..." notation can also be used to represent varargs. An empty 181 * parameter list is taken to mean void (that is, no arguments are permitted). 182 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional 183 * argument. 184 */ 185 static const dt_ident_t _dtrace_globals[] = { 186 { "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0, 187 &dt_idops_func, "void *(size_t)" }, 188 { "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0, 189 &dt_idops_type, "int64_t" }, 190 { "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0, 191 &dt_idops_type, "int64_t" }, 192 { "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0, 193 &dt_idops_type, "int64_t" }, 194 { "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0, 195 &dt_idops_type, "int64_t" }, 196 { "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0, 197 &dt_idops_type, "int64_t" }, 198 { "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0, 199 &dt_idops_type, "int64_t" }, 200 { "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0, 201 &dt_idops_type, "int64_t" }, 202 { "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0, 203 &dt_idops_type, "int64_t" }, 204 { "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0, 205 &dt_idops_type, "int64_t" }, 206 { "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0, 207 &dt_idops_type, "int64_t" }, 208 { "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0, 209 &dt_idops_args, NULL }, 210 { "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0, 211 &dt_idops_func, "void(@)" }, 212 { "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0, 213 &dt_idops_func, "string(const char *)" }, 214 { "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0, 215 &dt_idops_func, "void(void *, void *, size_t)" }, 216 { "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT, 217 DT_ATTR_STABCMN, DT_VERS_1_0, 218 &dt_idops_func, "void()" }, 219 { "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0, 220 &dt_idops_type, "uintptr_t" }, 221 { "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0, 222 &dt_idops_func, "void(int)" }, 223 { "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN, 224 DT_VERS_1_0, &dt_idops_func, "string(const char *)" }, 225 { "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0, 226 &dt_idops_func, "void(...)" }, 227 { "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0, 228 &dt_idops_func, "void(int)" }, 229 { "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0, 230 &dt_idops_func, "void *(uintptr_t, size_t)" }, 231 { "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR, 232 DT_ATTR_STABCMN, DT_VERS_1_0, 233 &dt_idops_func, "string(uintptr_t, [size_t])" }, 234 { "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN, 235 DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" }, 236 { "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0, 237 &dt_idops_func, "void(void *, uintptr_t, size_t)" }, 238 { "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR, 239 DT_ATTR_STABCMN, DT_VERS_1_0, 240 &dt_idops_func, "void(char *, uintptr_t, size_t)" }, 241 { "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0, 242 &dt_idops_func, "void()" }, 243 { "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD, 244 { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE, 245 DTRACE_CLASS_COMMON }, DT_VERS_1_0, 246 #if defined(sun) 247 &dt_idops_type, "genunix`kthread_t *" }, 248 #else 249 &dt_idops_type, curthread_str }, 250 #endif 251 { "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME, 252 DT_ATTR_EVOLCMN, DT_VERS_1_0, 253 &dt_idops_func, "string(void *, int64_t)" }, 254 { "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN, 255 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 256 { "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0, 257 &dt_idops_func, "string(const char *)" }, 258 { "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0, 259 &dt_idops_func, "void(int)" }, 260 { "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0, 261 &dt_idops_type, "uint_t" }, 262 { "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0, 263 &dt_idops_type, "int" }, 264 { "execargs", DT_IDENT_SCALAR, 0, DIF_VAR_EXECARGS, 265 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 266 { "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME, 267 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 268 { "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0, 269 &dt_idops_func, "void(int)" }, 270 { "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN, 271 DT_VERS_1_1, &dt_idops_func, "void(@, ...)" }, 272 { "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN, 273 DT_VERS_1_0, &dt_idops_func, "void()" }, 274 { "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 275 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 276 { "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR, 277 DT_ATTR_EVOLCMN, DT_VERS_1_0, 278 &dt_idops_func, "genunix`major_t(genunix`dev_t)" }, 279 { "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR, 280 DT_ATTR_EVOLCMN, DT_VERS_1_0, 281 &dt_idops_func, "genunix`minor_t(genunix`dev_t)" }, 282 { "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 283 &dt_idops_func, "uint32_t(uint32_t)" }, 284 { "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 285 &dt_idops_func, "uint64_t(uint64_t)" }, 286 { "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 287 &dt_idops_func, "uint16_t(uint16_t)" }, 288 { "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0, 289 &dt_idops_type, "gid_t" }, 290 { "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0, 291 &dt_idops_type, "uint_t" }, 292 { "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 293 &dt_idops_func, "int(const char *, const char *, [int])" }, 294 { "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN, 295 #if defined(sun) 296 DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" }, 297 #else 298 DT_VERS_1_5, &dt_idops_func, "string(in_addr_t *)" }, 299 #endif 300 { "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN, 301 #if defined(sun) 302 DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" }, 303 #else 304 DT_VERS_1_5, &dt_idops_func, "string(struct in6_addr *)" }, 305 #endif 306 { "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN, 307 DT_VERS_1_5, &dt_idops_func, "string(int, void *)" }, 308 { "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0, 309 &dt_idops_type, "uint_t" }, 310 { "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 311 &dt_idops_func, "stack(...)" }, 312 { "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0, 313 &dt_idops_func, "string(int64_t, [int])" }, 314 { "llquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LLQUANTIZE, DT_ATTR_STABCMN, 315 DT_VERS_1_7, &dt_idops_func, 316 "void(@, int32_t, int32_t, int32_t, int32_t, ...)" }, 317 { "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE, 318 DT_ATTR_STABCMN, DT_VERS_1_0, 319 &dt_idops_func, "void(@, int32_t, int32_t, ...)" }, 320 { "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0, 321 &dt_idops_func, "void(@)" }, 322 { "memref", DT_IDENT_FUNC, 0, DIF_SUBR_MEMREF, DT_ATTR_STABCMN, DT_VERS_1_1, 323 &dt_idops_func, "uintptr_t *(void *, size_t)" }, 324 #if !defined(sun) 325 { "memstr", DT_IDENT_FUNC, 0, DIF_SUBR_MEMSTR, DT_ATTR_STABCMN, DT_VERS_1_0, 326 &dt_idops_func, "string(void *, char, size_t)" }, 327 #endif 328 { "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0, 329 &dt_idops_func, "void(@)" }, 330 { "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN, 331 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 332 { "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE, 333 DT_ATTR_STABCMN, DT_VERS_1_0, 334 &dt_idops_func, "size_t(mblk_t *)" }, 335 { "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE, 336 DT_ATTR_STABCMN, DT_VERS_1_0, 337 &dt_idops_func, "size_t(mblk_t *)" }, 338 #if defined(sun) 339 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 340 DT_ATTR_EVOLCMN, DT_VERS_1_0, 341 &dt_idops_func, "int(genunix`kmutex_t *)" }, 342 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 343 DT_ATTR_EVOLCMN, DT_VERS_1_0, 344 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" }, 345 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 346 DT_ATTR_EVOLCMN, DT_VERS_1_0, 347 &dt_idops_func, "int(genunix`kmutex_t *)" }, 348 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 349 DT_ATTR_EVOLCMN, DT_VERS_1_0, 350 &dt_idops_func, "int(genunix`kmutex_t *)" }, 351 #else 352 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 353 DT_ATTR_EVOLCMN, DT_VERS_1_0, 354 &dt_idops_func, intmtx_str }, 355 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 356 DT_ATTR_EVOLCMN, DT_VERS_1_0, 357 &dt_idops_func, threadmtx_str }, 358 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 359 DT_ATTR_EVOLCMN, DT_VERS_1_0, 360 &dt_idops_func, intmtx_str }, 361 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 362 DT_ATTR_EVOLCMN, DT_VERS_1_0, 363 &dt_idops_func, intmtx_str }, 364 #endif 365 { "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 366 &dt_idops_func, "uint32_t(uint32_t)" }, 367 { "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 368 &dt_idops_func, "uint64_t(uint64_t)" }, 369 { "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 370 &dt_idops_func, "uint16_t(uint16_t)" }, 371 { "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN, 372 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 373 { "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0, 374 &dt_idops_func, "void()" }, 375 { "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0, 376 &dt_idops_type, "pid_t" }, 377 { "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0, 378 &dt_idops_type, "pid_t" }, 379 { "print", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINT, DT_ATTR_STABCMN, DT_VERS_1_9, 380 &dt_idops_func, "void(@)" }, 381 { "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0, 382 &dt_idops_func, "void(@, ...)" }, 383 { "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0, 384 &dt_idops_func, "void(@, ...)" }, 385 { "printm", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTM, DT_ATTR_STABCMN, DT_VERS_1_0, 386 &dt_idops_func, "void(size_t, uintptr_t *)" }, 387 { "printt", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTT, DT_ATTR_STABCMN, DT_VERS_1_0, 388 &dt_idops_func, "void(size_t, uintptr_t *)" }, 389 { "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC, 390 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 391 { "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD, 392 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 393 { "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME, 394 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 395 { "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV, 396 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 397 { "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF, 398 DT_ATTR_STABCMN, DT_VERS_1_0, 399 &dt_idops_func, "int(pid_t)" }, 400 { "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE, 401 DT_ATTR_STABCMN, DT_VERS_1_0, 402 &dt_idops_func, "void(@, ...)" }, 403 { "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0, 404 &dt_idops_func, "void(int)" }, 405 { "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0, 406 &dt_idops_func, "int()" }, 407 { "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 408 &dt_idops_func, "int(const char *, const char *, [int])" }, 409 #if defined(sun) 410 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 411 DT_ATTR_EVOLCMN, DT_VERS_1_0, 412 &dt_idops_func, "int(genunix`krwlock_t *)" }, 413 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 414 DT_ATTR_EVOLCMN, DT_VERS_1_0, 415 &dt_idops_func, "int(genunix`krwlock_t *)" }, 416 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 417 DT_ATTR_EVOLCMN, DT_VERS_1_0, 418 &dt_idops_func, "int(genunix`krwlock_t *)" }, 419 #else 420 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 421 DT_ATTR_EVOLCMN, DT_VERS_1_0, 422 &dt_idops_func, rwlock_str }, 423 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 424 DT_ATTR_EVOLCMN, DT_VERS_1_0, 425 &dt_idops_func, rwlock_str }, 426 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 427 DT_ATTR_EVOLCMN, DT_VERS_1_0, 428 &dt_idops_func, rwlock_str }, 429 #endif 430 { "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 431 &dt_idops_type, "void" }, 432 { "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN, 433 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" }, 434 { "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE, 435 DT_ATTR_STABCMN, DT_VERS_1_0, 436 &dt_idops_func, "void(int)" }, 437 { "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION, 438 DT_ATTR_STABCMN, DT_VERS_1_0, 439 &dt_idops_func, "int()" }, 440 { "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0, 441 &dt_idops_func, "stack(...)" }, 442 { "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH, 443 DT_ATTR_STABCMN, DT_VERS_1_0, 444 &dt_idops_type, "uint32_t" }, 445 { "stddev", DT_IDENT_AGGFUNC, 0, DTRACEAGG_STDDEV, DT_ATTR_STABCMN, 446 DT_VERS_1_6, &dt_idops_func, "void(@)" }, 447 { "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0, 448 &dt_idops_func, "void()" }, 449 { "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 450 &dt_idops_func, "string(const char *, char)" }, 451 { "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0, 452 &dt_idops_func, "size_t(const char *)" }, 453 { "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0, 454 &dt_idops_func, "string(const char *, const char *)" }, 455 { "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 456 &dt_idops_func, "string(const char *, char)" }, 457 { "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 458 &dt_idops_func, "string(const char *, const char *)" }, 459 { "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1, 460 &dt_idops_func, "string(const char *, const char *)" }, 461 { "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 462 &dt_idops_func, "string(const char *, int, [int])" }, 463 { "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0, 464 &dt_idops_func, "void(@)" }, 465 #if !defined(sun) 466 { "sx_isexclusive", DT_IDENT_FUNC, 0, DIF_SUBR_SX_ISEXCLUSIVE, 467 DT_ATTR_EVOLCMN, DT_VERS_1_0, 468 &dt_idops_func, sxlock_str }, 469 { "sx_shared_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_SHARED_HELD, 470 DT_ATTR_EVOLCMN, DT_VERS_1_0, 471 &dt_idops_func, sxlock_str }, 472 { "sx_exclusive_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_EXCLUSIVE_HELD, 473 DT_ATTR_EVOLCMN, DT_VERS_1_0, 474 &dt_idops_func, sxlock_str }, 475 #endif 476 { "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 477 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 478 { "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0, 479 &dt_idops_func, "void(@, ...)" }, 480 { "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 481 &dt_idops_type, "void" }, 482 { "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0, 483 &dt_idops_type, "id_t" }, 484 { "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP, 485 DT_ATTR_STABCMN, DT_VERS_1_0, 486 &dt_idops_type, "uint64_t" }, 487 { "tolower", DT_IDENT_FUNC, 0, DIF_SUBR_TOLOWER, DT_ATTR_STABCMN, DT_VERS_1_8, 488 &dt_idops_func, "string(const char *)" }, 489 { "toupper", DT_IDENT_FUNC, 0, DIF_SUBR_TOUPPER, DT_ATTR_STABCMN, DT_VERS_1_8, 490 &dt_idops_func, "string(const char *)" }, 491 { "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0, 492 &dt_idops_func, "void(@)" }, 493 { "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM, 494 DT_ATTR_STABCMN, DT_VERS_1_0, 495 &dt_idops_func, "void(@, size_t, ...)" }, 496 { "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN, 497 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 498 { "typeref", DT_IDENT_FUNC, 0, DIF_SUBR_TYPEREF, DT_ATTR_STABCMN, DT_VERS_1_1, 499 &dt_idops_func, "uintptr_t *(void *, size_t, string, size_t)" }, 500 { "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN, 501 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 502 { "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN, 503 DT_VERS_1_2, &dt_idops_type, "uint64_t" }, 504 { "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 505 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 506 { "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0, 507 &dt_idops_type, "uid_t" }, 508 { "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN, 509 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 510 { "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0, 511 &dt_idops_regs, NULL }, 512 { "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 513 &dt_idops_func, "stack(...)" }, 514 { "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH, 515 DT_ATTR_STABCMN, DT_VERS_1_2, 516 &dt_idops_type, "uint32_t" }, 517 { "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 518 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 519 { "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP, 520 DT_ATTR_STABCMN, DT_VERS_1_0, 521 &dt_idops_type, "uint64_t" }, 522 { "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP, 523 DT_ATTR_STABCMN, DT_VERS_1_0, 524 &dt_idops_type, "int64_t" }, 525 #if defined(sun) 526 { "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME, 527 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 528 #endif 529 530 #if !defined(sun) 531 { "cpu", DT_IDENT_SCALAR, 0, DIF_VAR_CPU, 532 DT_ATTR_STABCMN, DT_VERS_1_6_3, &dt_idops_type, "int" }, 533 #endif 534 535 { NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL } 536 }; 537 538 /* 539 * Tables of ILP32 intrinsic integer and floating-point type templates to use 540 * to populate the dynamic "C" CTF type container. 541 */ 542 static const dt_intrinsic_t _dtrace_intrinsics_32[] = { 543 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 544 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 545 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 546 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 547 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 548 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 549 { "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 550 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 551 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 552 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 553 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 554 { "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 555 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 556 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 557 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 558 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 559 { "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER }, 560 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 561 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 562 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 563 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 564 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 565 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 566 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 567 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 568 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 569 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 570 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 571 { NULL, { 0, 0, 0 }, 0 } 572 }; 573 574 /* 575 * Tables of LP64 intrinsic integer and floating-point type templates to use 576 * to populate the dynamic "C" CTF type container. 577 */ 578 static const dt_intrinsic_t _dtrace_intrinsics_64[] = { 579 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 580 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 581 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 582 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 583 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 584 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 585 { "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 586 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 587 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 588 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 589 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 590 { "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 591 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 592 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 593 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 594 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 595 { "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER }, 596 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 597 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 598 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 599 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 600 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 601 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 602 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 603 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 604 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 605 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 606 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 607 { NULL, { 0, 0, 0 }, 0 } 608 }; 609 610 /* 611 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container. 612 * These aliases ensure that D definitions can use typical <sys/types.h> names. 613 */ 614 static const dt_typedef_t _dtrace_typedefs_32[] = { 615 { "char", "int8_t" }, 616 { "short", "int16_t" }, 617 { "int", "int32_t" }, 618 { "long long", "int64_t" }, 619 { "int", "intptr_t" }, 620 { "int", "ssize_t" }, 621 { "unsigned char", "uint8_t" }, 622 { "unsigned short", "uint16_t" }, 623 { "unsigned", "uint32_t" }, 624 { "unsigned long long", "uint64_t" }, 625 { "unsigned char", "uchar_t" }, 626 { "unsigned short", "ushort_t" }, 627 { "unsigned", "uint_t" }, 628 { "unsigned long", "ulong_t" }, 629 { "unsigned long long", "u_longlong_t" }, 630 { "int", "ptrdiff_t" }, 631 { "unsigned", "uintptr_t" }, 632 { "unsigned", "size_t" }, 633 { "long", "id_t" }, 634 { "long", "pid_t" }, 635 { NULL, NULL } 636 }; 637 638 /* 639 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container. 640 * These aliases ensure that D definitions can use typical <sys/types.h> names. 641 */ 642 static const dt_typedef_t _dtrace_typedefs_64[] = { 643 { "char", "int8_t" }, 644 { "short", "int16_t" }, 645 { "int", "int32_t" }, 646 { "long", "int64_t" }, 647 { "long", "intptr_t" }, 648 { "long", "ssize_t" }, 649 { "unsigned char", "uint8_t" }, 650 { "unsigned short", "uint16_t" }, 651 { "unsigned", "uint32_t" }, 652 { "unsigned long", "uint64_t" }, 653 { "unsigned char", "uchar_t" }, 654 { "unsigned short", "ushort_t" }, 655 { "unsigned", "uint_t" }, 656 { "unsigned long", "ulong_t" }, 657 { "unsigned long long", "u_longlong_t" }, 658 { "long", "ptrdiff_t" }, 659 { "unsigned long", "uintptr_t" }, 660 { "unsigned long", "size_t" }, 661 { "int", "id_t" }, 662 { "int", "pid_t" }, 663 { NULL, NULL } 664 }; 665 666 /* 667 * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[] 668 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 669 */ 670 static const dt_intdesc_t _dtrace_ints_32[] = { 671 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 672 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 673 { "long", NULL, CTF_ERR, 0x7fffffffULL }, 674 { "unsigned long", NULL, CTF_ERR, 0xffffffffULL }, 675 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 676 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 677 }; 678 679 /* 680 * Tables of LP64 integer type templates used to populate the dtp->dt_ints[] 681 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 682 */ 683 static const dt_intdesc_t _dtrace_ints_64[] = { 684 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 685 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 686 { "long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 687 { "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL }, 688 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 689 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 690 }; 691 692 /* 693 * Table of macro variable templates used to populate the macro identifier hash 694 * when a new dtrace client open occurs. Values are set by dtrace_update(). 695 */ 696 static const dt_ident_t _dtrace_macros[] = { 697 { "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 698 { "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 699 { "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 700 { "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 701 { "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 702 { "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 703 { "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 704 { "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 705 { "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 706 { "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 707 { "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 708 { NULL, 0, 0, 0, { 0, 0, 0 }, 0 } 709 }; 710 711 /* 712 * Hard-wired definition string to be compiled and cached every time a new 713 * DTrace library handle is initialized. This string should only be used to 714 * contain definitions that should be present regardless of DTRACE_O_NOLIBS. 715 */ 716 static const char _dtrace_hardwire[] = "\ 717 inline long NULL = 0; \n\ 718 #pragma D binding \"1.0\" NULL\n\ 719 "; 720 721 /* 722 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV. 723 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel. 724 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are 725 * relying on the fact that when running dtrace(1M), isaexec will invoke the 726 * binary with the same bitness as the kernel, which is what we want by default 727 * when generating our DIF. The user can override the choice using oflags. 728 */ 729 static const dtrace_conf_t _dtrace_conf = { 730 DIF_VERSION, /* dtc_difversion */ 731 DIF_DIR_NREGS, /* dtc_difintregs */ 732 DIF_DTR_NREGS, /* dtc_diftupregs */ 733 CTF_MODEL_NATIVE /* dtc_ctfmodel */ 734 }; 735 736 const dtrace_attribute_t _dtrace_maxattr = { 737 DTRACE_STABILITY_MAX, 738 DTRACE_STABILITY_MAX, 739 DTRACE_CLASS_MAX 740 }; 741 742 const dtrace_attribute_t _dtrace_defattr = { 743 DTRACE_STABILITY_STABLE, 744 DTRACE_STABILITY_STABLE, 745 DTRACE_CLASS_COMMON 746 }; 747 748 const dtrace_attribute_t _dtrace_symattr = { 749 DTRACE_STABILITY_PRIVATE, 750 DTRACE_STABILITY_PRIVATE, 751 DTRACE_CLASS_UNKNOWN 752 }; 753 754 const dtrace_attribute_t _dtrace_typattr = { 755 DTRACE_STABILITY_PRIVATE, 756 DTRACE_STABILITY_PRIVATE, 757 DTRACE_CLASS_UNKNOWN 758 }; 759 760 const dtrace_attribute_t _dtrace_prvattr = { 761 DTRACE_STABILITY_PRIVATE, 762 DTRACE_STABILITY_PRIVATE, 763 DTRACE_CLASS_UNKNOWN 764 }; 765 766 const dtrace_pattr_t _dtrace_prvdesc = { 767 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 768 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 769 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 770 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 771 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 772 }; 773 774 #if defined(sun) 775 const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */ 776 const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */ 777 #else 778 const char *_dtrace_defcpp = "cpp"; /* default cpp(1) to invoke */ 779 const char *_dtrace_defld = "ld"; /* default ld(1) to invoke */ 780 #endif 781 782 const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */ 783 #if defined(sun) 784 const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */ 785 #else 786 const char *_dtrace_provdir = "/dev/dtrace"; /* provider directory */ 787 #endif 788 789 int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */ 790 int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */ 791 uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */ 792 uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */ 793 uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */ 794 uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */ 795 size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */ 796 int _dtrace_argmax = 32; /* default maximum number of probe arguments */ 797 798 int _dtrace_debug = 0; /* debug messages enabled (off) */ 799 const char *const _dtrace_version = DT_VERS_STRING; /* API version string */ 800 int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */ 801 802 typedef struct dt_fdlist { 803 int *df_fds; /* array of provider driver file descriptors */ 804 uint_t df_ents; /* number of valid elements in df_fds[] */ 805 uint_t df_size; /* size of df_fds[] */ 806 } dt_fdlist_t; 807 808 #if defined(sun) 809 #pragma init(_dtrace_init) 810 #else 811 void _dtrace_init(void) __attribute__ ((constructor)); 812 #endif 813 void 814 _dtrace_init(void) 815 { 816 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL; 817 818 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) { 819 if (rd_init(_dtrace_rdvers) == RD_OK) 820 break; 821 } 822 #if defined(__i386__) 823 /* make long doubles 64 bits -sson */ 824 (void) fpsetprec(FP_PE); 825 #endif 826 } 827 828 static dtrace_hdl_t * 829 set_open_errno(dtrace_hdl_t *dtp, int *errp, int err) 830 { 831 if (dtp != NULL) 832 dtrace_close(dtp); 833 if (errp != NULL) 834 *errp = err; 835 return (NULL); 836 } 837 838 static void 839 dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp) 840 { 841 dt_provmod_t *prov; 842 char path[PATH_MAX]; 843 int fd; 844 #if defined(sun) 845 struct dirent *dp, *ep; 846 DIR *dirp; 847 848 if ((dirp = opendir(_dtrace_provdir)) == NULL) 849 return; /* failed to open directory; just skip it */ 850 851 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1); 852 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1); 853 854 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) { 855 if (dp->d_name[0] == '.') 856 continue; /* skip "." and ".." */ 857 858 if (dfp->df_ents == dfp->df_size) { 859 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 860 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 861 862 if (fds == NULL) 863 break; /* skip the rest of this directory */ 864 865 dfp->df_fds = fds; 866 dfp->df_size = size; 867 } 868 869 (void) snprintf(path, sizeof (path), "%s/%s", 870 _dtrace_provdir, dp->d_name); 871 872 if ((fd = open(path, O_RDONLY)) == -1) 873 continue; /* failed to open driver; just skip it */ 874 875 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 876 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) { 877 free(prov); 878 (void) close(fd); 879 break; 880 } 881 882 (void) strcpy(prov->dp_name, dp->d_name); 883 prov->dp_next = *provmod; 884 *provmod = prov; 885 886 dt_dprintf("opened provider %s\n", dp->d_name); 887 dfp->df_fds[dfp->df_ents++] = fd; 888 } 889 890 (void) closedir(dirp); 891 #else 892 char *p; 893 char *p1; 894 char *p_providers = NULL; 895 int error; 896 size_t len = 0; 897 898 /* 899 * Loop to allocate/reallocate memory for the string of provider 900 * names and retry: 901 */ 902 while(1) { 903 /* 904 * The first time around, get the string length. The next time, 905 * hopefully we've allocated enough memory. 906 */ 907 error = sysctlbyname("debug.dtrace.providers",p_providers,&len,NULL,0); 908 if (len == 0) 909 /* No providers? That's strange. Where's dtrace? */ 910 break; 911 else if (error == 0 && p_providers == NULL) { 912 /* 913 * Allocate the initial memory which should be enough 914 * unless another provider loads before we have 915 * time to go back and get the string. 916 */ 917 if ((p_providers = malloc(len)) == NULL) 918 /* How do we report errors here? */ 919 return; 920 } else if (error == -1 && errno == ENOMEM) { 921 /* 922 * The current buffer isn't large enough, so 923 * reallocate it. We normally won't need to do this 924 * because providers aren't being loaded all the time. 925 */ 926 if ((p = realloc(p_providers,len)) == NULL) 927 /* How do we report errors here? */ 928 return; 929 p_providers = p; 930 } else 931 break; 932 } 933 934 /* Check if we got a string of provider names: */ 935 if (error == 0 && len > 0 && p_providers != NULL) { 936 p = p_providers; 937 938 /* 939 * Parse the string containing the space separated 940 * provider names. 941 */ 942 while ((p1 = strsep(&p," ")) != NULL) { 943 if (dfp->df_ents == dfp->df_size) { 944 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 945 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 946 947 if (fds == NULL) 948 break; 949 950 dfp->df_fds = fds; 951 dfp->df_size = size; 952 } 953 954 (void) snprintf(path, sizeof (path), "/dev/dtrace/%s", p1); 955 956 if ((fd = open(path, O_RDONLY)) == -1) 957 continue; /* failed to open driver; just skip it */ 958 959 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 960 (prov->dp_name = malloc(strlen(p1) + 1)) == NULL) { 961 free(prov); 962 (void) close(fd); 963 break; 964 } 965 966 (void) strcpy(prov->dp_name, p1); 967 prov->dp_next = *provmod; 968 *provmod = prov; 969 970 dt_dprintf("opened provider %s\n", p1); 971 dfp->df_fds[dfp->df_ents++] = fd; 972 } 973 } 974 if (p_providers != NULL) 975 free(p_providers); 976 #endif 977 } 978 979 static void 980 dt_provmod_destroy(dt_provmod_t **provmod) 981 { 982 dt_provmod_t *next, *current; 983 984 for (current = *provmod; current != NULL; current = next) { 985 next = current->dp_next; 986 free(current->dp_name); 987 free(current); 988 } 989 990 *provmod = NULL; 991 } 992 993 #if defined(sun) 994 static const char * 995 dt_get_sysinfo(int cmd, char *buf, size_t len) 996 { 997 ssize_t rv = sysinfo(cmd, buf, len); 998 char *p = buf; 999 1000 if (rv < 0 || rv > len) 1001 (void) snprintf(buf, len, "%s", "Unknown"); 1002 1003 while ((p = strchr(p, '.')) != NULL) 1004 *p++ = '_'; 1005 1006 return (buf); 1007 } 1008 #endif 1009 1010 static dtrace_hdl_t * 1011 dt_vopen(int version, int flags, int *errp, 1012 const dtrace_vector_t *vector, void *arg) 1013 { 1014 dtrace_hdl_t *dtp = NULL; 1015 int dtfd = -1, ftfd = -1, fterr = 0; 1016 dtrace_prog_t *pgp; 1017 dt_module_t *dmp; 1018 dt_provmod_t *provmod = NULL; 1019 int i, err; 1020 struct rlimit rl; 1021 1022 const dt_intrinsic_t *dinp; 1023 const dt_typedef_t *dtyp; 1024 const dt_ident_t *idp; 1025 1026 dtrace_typeinfo_t dtt; 1027 ctf_funcinfo_t ctc; 1028 ctf_arinfo_t ctr; 1029 1030 dt_fdlist_t df = { NULL, 0, 0 }; 1031 1032 char isadef[32], utsdef[32]; 1033 char s1[64], s2[64]; 1034 1035 if (version <= 0) 1036 return (set_open_errno(dtp, errp, EINVAL)); 1037 1038 if (version > DTRACE_VERSION) 1039 return (set_open_errno(dtp, errp, EDT_VERSION)); 1040 1041 if (version < DTRACE_VERSION) { 1042 /* 1043 * Currently, increasing the library version number is used to 1044 * denote a binary incompatible change. That is, a consumer 1045 * of the library cannot run on a version of the library with 1046 * a higher DTRACE_VERSION number than the consumer compiled 1047 * against. Once the library API has been committed to, 1048 * backwards binary compatibility will be required; at that 1049 * time, this check should change to return EDT_OVERSION only 1050 * if the specified version number is less than the version 1051 * number at the time of interface commitment. 1052 */ 1053 return (set_open_errno(dtp, errp, EDT_OVERSION)); 1054 } 1055 1056 if (flags & ~DTRACE_O_MASK) 1057 return (set_open_errno(dtp, errp, EINVAL)); 1058 1059 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32)) 1060 return (set_open_errno(dtp, errp, EINVAL)); 1061 1062 if (vector == NULL && arg != NULL) 1063 return (set_open_errno(dtp, errp, EINVAL)); 1064 1065 if (elf_version(EV_CURRENT) == EV_NONE) 1066 return (set_open_errno(dtp, errp, EDT_ELFVERSION)); 1067 1068 if (vector != NULL || (flags & DTRACE_O_NODEV)) 1069 goto alloc; /* do not attempt to open dtrace device */ 1070 1071 /* 1072 * Before we get going, crank our limit on file descriptors up to the 1073 * hard limit. This is to allow for the fact that libproc keeps file 1074 * descriptors to objects open for the lifetime of the proc handle; 1075 * without raising our hard limit, we would have an acceptably small 1076 * bound on the number of processes that we could concurrently 1077 * instrument with the pid provider. 1078 */ 1079 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) { 1080 rl.rlim_cur = rl.rlim_max; 1081 (void) setrlimit(RLIMIT_NOFILE, &rl); 1082 } 1083 1084 /* 1085 * Get the device path of each of the providers. We hold them open 1086 * in the df.df_fds list until we open the DTrace driver itself, 1087 * allowing us to see all of the probes provided on this system. Once 1088 * we have the DTrace driver open, we can safely close all the providers 1089 * now that they have registered with the framework. 1090 */ 1091 dt_provmod_open(&provmod, &df); 1092 1093 dtfd = open("/dev/dtrace/dtrace", O_RDWR); 1094 err = errno; /* save errno from opening dtfd */ 1095 #if defined(__FreeBSD__) 1096 /* 1097 * Automatically load the 'dtraceall' module if we couldn't open the 1098 * char device. 1099 */ 1100 if (err == ENOENT && modfind("dtraceall") < 0) { 1101 kldload("dtraceall"); /* ignore the error */ 1102 dtfd = open("/dev/dtrace/dtrace", O_RDWR); 1103 err = errno; 1104 } 1105 #endif 1106 #if defined(sun) 1107 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR); 1108 #else 1109 ftfd = open("/dev/dtrace/fasttrap", O_RDWR); 1110 #endif 1111 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */ 1112 1113 while (df.df_ents-- != 0) 1114 (void) close(df.df_fds[df.df_ents]); 1115 1116 free(df.df_fds); 1117 1118 /* 1119 * If we failed to open the dtrace device, fail dtrace_open(). 1120 * We convert some kernel errnos to custom libdtrace errnos to 1121 * improve the resulting message from the usual strerror(). 1122 */ 1123 if (dtfd == -1) { 1124 dt_provmod_destroy(&provmod); 1125 switch (err) { 1126 case ENOENT: 1127 err = EDT_NOENT; 1128 break; 1129 case EBUSY: 1130 err = EDT_BUSY; 1131 break; 1132 case EACCES: 1133 err = EDT_ACCESS; 1134 break; 1135 } 1136 return (set_open_errno(dtp, errp, err)); 1137 } 1138 1139 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC); 1140 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC); 1141 1142 alloc: 1143 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL) 1144 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1145 1146 bzero(dtp, sizeof (dtrace_hdl_t)); 1147 dtp->dt_oflags = flags; 1148 #if defined(sun) 1149 dtp->dt_prcmode = DT_PROC_STOP_PREINIT; 1150 #else 1151 dtp->dt_prcmode = DT_PROC_STOP_POSTINIT; 1152 #endif 1153 dtp->dt_linkmode = DT_LINK_KERNEL; 1154 dtp->dt_linktype = DT_LTYP_ELF; 1155 dtp->dt_xlatemode = DT_XL_STATIC; 1156 dtp->dt_stdcmode = DT_STDC_XA; 1157 dtp->dt_encoding = DT_ENCODING_UNSET; 1158 dtp->dt_version = version; 1159 dtp->dt_fd = dtfd; 1160 dtp->dt_ftfd = ftfd; 1161 dtp->dt_fterr = fterr; 1162 dtp->dt_cdefs_fd = -1; 1163 dtp->dt_ddefs_fd = -1; 1164 #if defined(sun) 1165 dtp->dt_stdout_fd = -1; 1166 #else 1167 dtp->dt_freopen_fp = NULL; 1168 #endif 1169 dtp->dt_modbuckets = _dtrace_strbuckets; 1170 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *)); 1171 dtp->dt_provbuckets = _dtrace_strbuckets; 1172 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *)); 1173 dt_proc_hash_create(dtp); 1174 dtp->dt_vmax = DT_VERS_LATEST; 1175 dtp->dt_cpp_path = strdup(_dtrace_defcpp); 1176 dtp->dt_cpp_argv = malloc(sizeof (char *)); 1177 dtp->dt_cpp_argc = 1; 1178 dtp->dt_cpp_args = 1; 1179 dtp->dt_ld_path = strdup(_dtrace_defld); 1180 dtp->dt_provmod = provmod; 1181 dtp->dt_vector = vector; 1182 dtp->dt_varg = arg; 1183 dt_dof_init(dtp); 1184 (void) uname(&dtp->dt_uts); 1185 1186 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL || 1187 dtp->dt_procs == NULL || dtp->dt_ld_path == NULL || 1188 dtp->dt_cpp_path == NULL || dtp->dt_cpp_argv == NULL) 1189 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1190 1191 for (i = 0; i < DTRACEOPT_MAX; i++) 1192 dtp->dt_options[i] = DTRACEOPT_UNSET; 1193 1194 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path); 1195 1196 #if defined(sun) 1197 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u", 1198 (uint_t)(sizeof (void *) * NBBY)); 1199 1200 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s", 1201 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)), 1202 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2))); 1203 1204 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL || 1205 dt_cpp_add_arg(dtp, "-D__unix") == NULL || 1206 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL || 1207 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL || 1208 dt_cpp_add_arg(dtp, isadef) == NULL || 1209 dt_cpp_add_arg(dtp, utsdef) == NULL) 1210 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1211 #endif 1212 1213 if (flags & DTRACE_O_NODEV) 1214 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf)); 1215 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0) 1216 return (set_open_errno(dtp, errp, errno)); 1217 1218 if (flags & DTRACE_O_LP64) 1219 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64; 1220 else if (flags & DTRACE_O_ILP32) 1221 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32; 1222 1223 #ifdef __sparc 1224 /* 1225 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h> 1226 * and __sparcv9 is defined if we are doing a 64-bit compile. 1227 */ 1228 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL) 1229 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1230 1231 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 && 1232 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL) 1233 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1234 #endif 1235 1236 #if defined(sun) 1237 #ifdef __x86 1238 /* 1239 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit 1240 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC, 1241 * they are defined exclusive of one another (see PSARC 2004/619). 1242 */ 1243 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 1244 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL) 1245 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1246 } else { 1247 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL) 1248 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1249 } 1250 #endif 1251 #else 1252 #if defined(__amd64__) || defined(__i386__) 1253 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 1254 if (dt_cpp_add_arg(dtp, "-m64") == NULL) 1255 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1256 } else { 1257 if (dt_cpp_add_arg(dtp, "-m32") == NULL) 1258 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1259 } 1260 #endif 1261 #endif 1262 1263 if (dtp->dt_conf.dtc_difversion < DIF_VERSION) 1264 return (set_open_errno(dtp, errp, EDT_DIFVERS)); 1265 1266 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) 1267 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32)); 1268 else 1269 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64)); 1270 1271 /* 1272 * On FreeBSD the kernel module name can't be hard-coded. The 1273 * 'kern.bootfile' sysctl value tells us exactly which file is being 1274 * used as the kernel. 1275 */ 1276 #if !defined(sun) 1277 { 1278 char bootfile[MAXPATHLEN]; 1279 char *p; 1280 int i; 1281 size_t len = sizeof(bootfile); 1282 1283 /* This call shouldn't fail, but use a default just in case. */ 1284 if (sysctlbyname("kern.bootfile", bootfile, &len, NULL, 0) != 0) 1285 strlcpy(bootfile, "kernel", sizeof(bootfile)); 1286 1287 if ((p = strrchr(bootfile, '/')) != NULL) 1288 p++; 1289 else 1290 p = bootfile; 1291 1292 /* 1293 * Format the global variables based on the kernel module name. 1294 */ 1295 snprintf(curthread_str, sizeof(curthread_str), "%s`struct thread *",p); 1296 snprintf(intmtx_str, sizeof(intmtx_str), "int(%s`struct mtx *)",p); 1297 snprintf(threadmtx_str, sizeof(threadmtx_str), "struct thread *(%s`struct mtx *)",p); 1298 snprintf(rwlock_str, sizeof(rwlock_str), "int(%s`struct rwlock *)",p); 1299 snprintf(sxlock_str, sizeof(sxlock_str), "int(%s`struct sxlock *)",p); 1300 } 1301 #endif 1302 1303 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX); 1304 dtp->dt_aggs = dt_idhash_create("aggregation", NULL, 1305 DTRACE_AGGVARIDNONE + 1, UINT_MAX); 1306 1307 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals, 1308 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1309 1310 dtp->dt_tls = dt_idhash_create("thread local", NULL, 1311 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1312 1313 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL || 1314 dtp->dt_globals == NULL || dtp->dt_tls == NULL) 1315 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1316 1317 /* 1318 * Populate the dt_macros identifier hash table by hand: we can't use 1319 * the dt_idhash_populate() mechanism because we're not yet compiling 1320 * and dtrace_update() needs to immediately reference these idents. 1321 */ 1322 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) { 1323 if (dt_idhash_insert(dtp->dt_macros, idp->di_name, 1324 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr, 1325 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw, 1326 idp->di_iarg, 0) == NULL) 1327 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1328 } 1329 1330 /* 1331 * Update the module list using /system/object and load the values for 1332 * the macro variable definitions according to the current process. 1333 */ 1334 dtrace_update(dtp); 1335 1336 /* 1337 * Select the intrinsics and typedefs we want based on the data model. 1338 * The intrinsics are under "C". The typedefs are added under "D". 1339 */ 1340 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) { 1341 dinp = _dtrace_intrinsics_32; 1342 dtyp = _dtrace_typedefs_32; 1343 } else { 1344 dinp = _dtrace_intrinsics_64; 1345 dtyp = _dtrace_typedefs_64; 1346 } 1347 1348 /* 1349 * Create a dynamic CTF container under the "C" scope for intrinsic 1350 * types and types defined in ANSI-C header files that are included. 1351 */ 1352 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL) 1353 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1354 1355 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1356 return (set_open_errno(dtp, errp, EDT_CTF)); 1357 1358 dt_dprintf("created CTF container for %s (%p)\n", 1359 dmp->dm_name, (void *)dmp->dm_ctfp); 1360 1361 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1362 ctf_setspecific(dmp->dm_ctfp, dmp); 1363 1364 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1365 dmp->dm_modid = -1; /* no module ID */ 1366 1367 /* 1368 * Fill the dynamic "C" CTF container with all of the intrinsic 1369 * integer and floating-point types appropriate for this data model. 1370 */ 1371 for (; dinp->din_name != NULL; dinp++) { 1372 if (dinp->din_kind == CTF_K_INTEGER) { 1373 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT, 1374 dinp->din_name, &dinp->din_data); 1375 } else { 1376 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT, 1377 dinp->din_name, &dinp->din_data); 1378 } 1379 1380 if (err == CTF_ERR) { 1381 dt_dprintf("failed to add %s to C container: %s\n", 1382 dinp->din_name, ctf_errmsg( 1383 ctf_errno(dmp->dm_ctfp))); 1384 return (set_open_errno(dtp, errp, EDT_CTF)); 1385 } 1386 } 1387 1388 if (ctf_update(dmp->dm_ctfp) != 0) { 1389 dt_dprintf("failed to update C container: %s\n", 1390 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1391 return (set_open_errno(dtp, errp, EDT_CTF)); 1392 } 1393 1394 /* 1395 * Add intrinsic pointer types that are needed to initialize printf 1396 * format dictionary types (see table in dt_printf.c). 1397 */ 1398 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1399 ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1400 1401 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1402 ctf_lookup_by_name(dmp->dm_ctfp, "char")); 1403 1404 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1405 ctf_lookup_by_name(dmp->dm_ctfp, "int")); 1406 1407 if (ctf_update(dmp->dm_ctfp) != 0) { 1408 dt_dprintf("failed to update C container: %s\n", 1409 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1410 return (set_open_errno(dtp, errp, EDT_CTF)); 1411 } 1412 1413 /* 1414 * Create a dynamic CTF container under the "D" scope for types that 1415 * are defined by the D program itself or on-the-fly by the D compiler. 1416 * The "D" CTF container is a child of the "C" CTF container. 1417 */ 1418 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL) 1419 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1420 1421 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1422 return (set_open_errno(dtp, errp, EDT_CTF)); 1423 1424 dt_dprintf("created CTF container for %s (%p)\n", 1425 dmp->dm_name, (void *)dmp->dm_ctfp); 1426 1427 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1428 ctf_setspecific(dmp->dm_ctfp, dmp); 1429 1430 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1431 dmp->dm_modid = -1; /* no module ID */ 1432 1433 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) { 1434 dt_dprintf("failed to import D parent container: %s\n", 1435 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1436 return (set_open_errno(dtp, errp, EDT_CTF)); 1437 } 1438 1439 /* 1440 * Fill the dynamic "D" CTF container with all of the built-in typedefs 1441 * that we need to use for our D variable and function definitions. 1442 * This ensures that basic inttypes.h names are always available to us. 1443 */ 1444 for (; dtyp->dty_src != NULL; dtyp++) { 1445 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1446 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp, 1447 dtyp->dty_src)) == CTF_ERR) { 1448 dt_dprintf("failed to add typedef %s %s to D " 1449 "container: %s", dtyp->dty_src, dtyp->dty_dst, 1450 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1451 return (set_open_errno(dtp, errp, EDT_CTF)); 1452 } 1453 } 1454 1455 /* 1456 * Insert a CTF ID corresponding to a pointer to a type of kind 1457 * CTF_K_FUNCTION we can use in the compiler for function pointers. 1458 * CTF treats all function pointers as "int (*)()" so we only need one. 1459 */ 1460 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int"); 1461 ctc.ctc_argc = 0; 1462 ctc.ctc_flags = 0; 1463 1464 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp, 1465 CTF_ADD_ROOT, &ctc, NULL); 1466 1467 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp, 1468 CTF_ADD_ROOT, dtp->dt_type_func); 1469 1470 /* 1471 * We also insert CTF definitions for the special D intrinsic types 1472 * string and <DYN> into the D container. The string type is added 1473 * as a typedef of char[n]. The <DYN> type is an alias for void. 1474 * We compare types to these special CTF ids throughout the compiler. 1475 */ 1476 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char"); 1477 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long"); 1478 ctr.ctr_nelems = _dtrace_strsize; 1479 1480 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1481 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr)); 1482 1483 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1484 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1485 1486 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1487 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1488 1489 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1490 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1491 1492 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1493 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1494 1495 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR || 1496 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR || 1497 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR || 1498 dtp->dt_type_usymaddr == CTF_ERR) { 1499 dt_dprintf("failed to add intrinsic to D container: %s\n", 1500 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1501 return (set_open_errno(dtp, errp, EDT_CTF)); 1502 } 1503 1504 if (ctf_update(dmp->dm_ctfp) != 0) { 1505 dt_dprintf("failed update D container: %s\n", 1506 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1507 return (set_open_errno(dtp, errp, EDT_CTF)); 1508 } 1509 1510 /* 1511 * Initialize the integer description table used to convert integer 1512 * constants to the appropriate types. Refer to the comments above 1513 * dt_node_int() for a complete description of how this table is used. 1514 */ 1515 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) { 1516 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY, 1517 dtp->dt_ints[i].did_name, &dtt) != 0) { 1518 dt_dprintf("failed to lookup integer type %s: %s\n", 1519 dtp->dt_ints[i].did_name, 1520 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1521 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1522 } 1523 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp; 1524 dtp->dt_ints[i].did_type = dtt.dtt_type; 1525 } 1526 1527 /* 1528 * Now that we've created the "C" and "D" containers, move them to the 1529 * start of the module list so that these types and symbols are found 1530 * first (for stability) when iterating through the module list. 1531 */ 1532 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs); 1533 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs); 1534 1535 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs); 1536 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs); 1537 1538 if (dt_pfdict_create(dtp) == -1) 1539 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1540 1541 /* 1542 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default 1543 * because without /dev/dtrace open, we will not be able to load the 1544 * names and attributes of any providers or probes from the kernel. 1545 */ 1546 if (flags & DTRACE_O_NODEV) 1547 dtp->dt_cflags |= DTRACE_C_ZDEFS; 1548 1549 /* 1550 * Load hard-wired inlines into the definition cache by calling the 1551 * compiler on the raw definition string defined above. 1552 */ 1553 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire, 1554 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) { 1555 dt_dprintf("failed to load hard-wired definitions: %s\n", 1556 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1557 return (set_open_errno(dtp, errp, EDT_HARDWIRE)); 1558 } 1559 1560 dt_program_destroy(dtp, pgp); 1561 1562 /* 1563 * Set up the default DTrace library path. Once set, the next call to 1564 * dt_compile() will compile all the libraries. We intentionally defer 1565 * library processing to improve overhead for clients that don't ever 1566 * compile, and to provide better error reporting (because the full 1567 * reporting of compiler errors requires dtrace_open() to succeed). 1568 */ 1569 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0) 1570 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1571 1572 return (dtp); 1573 } 1574 1575 dtrace_hdl_t * 1576 dtrace_open(int version, int flags, int *errp) 1577 { 1578 return (dt_vopen(version, flags, errp, NULL, NULL)); 1579 } 1580 1581 dtrace_hdl_t * 1582 dtrace_vopen(int version, int flags, int *errp, 1583 const dtrace_vector_t *vector, void *arg) 1584 { 1585 return (dt_vopen(version, flags, errp, vector, arg)); 1586 } 1587 1588 void 1589 dtrace_close(dtrace_hdl_t *dtp) 1590 { 1591 dt_ident_t *idp, *ndp; 1592 dt_module_t *dmp; 1593 dt_provider_t *pvp; 1594 dtrace_prog_t *pgp; 1595 dt_xlator_t *dxp; 1596 dt_dirpath_t *dirp; 1597 int i; 1598 1599 if (dtp->dt_procs != NULL) 1600 dt_proc_hash_destroy(dtp); 1601 1602 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL) 1603 dt_program_destroy(dtp, pgp); 1604 1605 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL) 1606 dt_xlator_destroy(dtp, dxp); 1607 1608 dt_free(dtp, dtp->dt_xlatormap); 1609 1610 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) { 1611 ndp = idp->di_next; 1612 dt_ident_destroy(idp); 1613 } 1614 1615 if (dtp->dt_macros != NULL) 1616 dt_idhash_destroy(dtp->dt_macros); 1617 if (dtp->dt_aggs != NULL) 1618 dt_idhash_destroy(dtp->dt_aggs); 1619 if (dtp->dt_globals != NULL) 1620 dt_idhash_destroy(dtp->dt_globals); 1621 if (dtp->dt_tls != NULL) 1622 dt_idhash_destroy(dtp->dt_tls); 1623 1624 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL) 1625 dt_module_destroy(dtp, dmp); 1626 1627 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL) 1628 dt_provider_destroy(dtp, pvp); 1629 1630 if (dtp->dt_fd != -1) 1631 (void) close(dtp->dt_fd); 1632 if (dtp->dt_ftfd != -1) 1633 (void) close(dtp->dt_ftfd); 1634 if (dtp->dt_cdefs_fd != -1) 1635 (void) close(dtp->dt_cdefs_fd); 1636 if (dtp->dt_ddefs_fd != -1) 1637 (void) close(dtp->dt_ddefs_fd); 1638 #if defined(sun) 1639 if (dtp->dt_stdout_fd != -1) 1640 (void) close(dtp->dt_stdout_fd); 1641 #else 1642 if (dtp->dt_freopen_fp != NULL) 1643 (void) fclose(dtp->dt_freopen_fp); 1644 #endif 1645 1646 dt_epid_destroy(dtp); 1647 dt_aggid_destroy(dtp); 1648 dt_format_destroy(dtp); 1649 dt_strdata_destroy(dtp); 1650 dt_buffered_destroy(dtp); 1651 dt_aggregate_destroy(dtp); 1652 dt_pfdict_destroy(dtp); 1653 dt_provmod_destroy(&dtp->dt_provmod); 1654 dt_dof_fini(dtp); 1655 1656 for (i = 1; i < dtp->dt_cpp_argc; i++) 1657 free(dtp->dt_cpp_argv[i]); 1658 1659 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) { 1660 dt_list_delete(&dtp->dt_lib_path, dirp); 1661 free(dirp->dir_path); 1662 free(dirp); 1663 } 1664 1665 free(dtp->dt_cpp_argv); 1666 free(dtp->dt_cpp_path); 1667 free(dtp->dt_ld_path); 1668 1669 free(dtp->dt_mods); 1670 free(dtp->dt_provs); 1671 free(dtp); 1672 } 1673 1674 int 1675 dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods) 1676 { 1677 dt_provmod_t *prov; 1678 int i = 0; 1679 1680 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) { 1681 if (i < nmods) 1682 mods[i] = prov->dp_name; 1683 } 1684 1685 return (i); 1686 } 1687 1688 int 1689 dtrace_ctlfd(dtrace_hdl_t *dtp) 1690 { 1691 return (dtp->dt_fd); 1692 } 1693