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 #include <sys/modctl.h> 30 #include <sys/systeminfo.h> 31 #include <sys/resource.h> 32 33 #include <libelf.h> 34 #include <strings.h> 35 #include <alloca.h> 36 #include <limits.h> 37 #include <unistd.h> 38 #include <stdlib.h> 39 #include <stdio.h> 40 #include <fcntl.h> 41 #include <errno.h> 42 #include <assert.h> 43 44 #define _POSIX_PTHREAD_SEMANTICS 45 #include <dirent.h> 46 #undef _POSIX_PTHREAD_SEMANTICS 47 48 #include <dt_impl.h> 49 #include <dt_program.h> 50 #include <dt_module.h> 51 #include <dt_printf.h> 52 #include <dt_string.h> 53 #include <dt_provider.h> 54 55 /* 56 * Stability and versioning definitions. These #defines are used in the tables 57 * of identifiers below to fill in the attribute and version fields associated 58 * with each identifier. The DT_ATTR_* macros are a convenience to permit more 59 * concise declarations of common attributes such as Stable/Stable/Common. The 60 * DT_VERS_* macros declare the encoded integer values of all versions used so 61 * far. DT_VERS_LATEST must correspond to the latest version value among all 62 * versions exported by the D compiler. DT_VERS_STRING must be an ASCII string 63 * that contains DT_VERS_LATEST within it along with any suffixes (e.g. Beta). 64 * You must update DT_VERS_LATEST and DT_VERS_STRING when adding a new version, 65 * and then add the new version to the _dtrace_versions[] array declared below. 66 * Refer to the Solaris Dynamic Tracing Guide Stability and Versioning chapters 67 * respectively for an explanation of these DTrace features and their values. 68 * 69 * NOTE: Although the DTrace versioning scheme supports the labeling and 70 * introduction of incompatible changes (e.g. dropping an interface in a 71 * major release), the libdtrace code does not currently support this. 72 * All versions are assumed to strictly inherit from one another. If 73 * we ever need to provide divergent interfaces, this will need work. 74 */ 75 #define DT_ATTR_STABCMN { DTRACE_STABILITY_STABLE, \ 76 DTRACE_STABILITY_STABLE, DTRACE_CLASS_COMMON } 77 78 #define DT_ATTR_EVOLCMN { DTRACE_STABILITY_EVOLVING, \ 79 DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_COMMON \ 80 } 81 82 /* 83 * The version number should be increased for every customer visible release 84 * of DTrace. The major number should be incremented when a fundamental 85 * change has been made that would affect all consumers, and would reflect 86 * sweeping changes to DTrace or the D language. The minor number should be 87 * incremented when a change is introduced that could break scripts that had 88 * previously worked; for example, adding a new built-in variable could break 89 * a script which was already using that identifier. The micro number should 90 * be changed when introducing functionality changes or major bug fixes that 91 * do not affect backward compatibility -- this is merely to make capabilities 92 * easily determined from the version number. Minor bugs do not require any 93 * modification to the version number. 94 */ 95 #define DT_VERS_1_0 DT_VERSION_NUMBER(1, 0, 0) 96 #define DT_VERS_1_1 DT_VERSION_NUMBER(1, 1, 0) 97 #define DT_VERS_1_2 DT_VERSION_NUMBER(1, 2, 0) 98 #define DT_VERS_1_2_1 DT_VERSION_NUMBER(1, 2, 1) 99 #define DT_VERS_1_2_2 DT_VERSION_NUMBER(1, 2, 2) 100 #define DT_VERS_1_3 DT_VERSION_NUMBER(1, 3, 0) 101 #define DT_VERS_1_4 DT_VERSION_NUMBER(1, 4, 0) 102 #define DT_VERS_1_4_1 DT_VERSION_NUMBER(1, 4, 1) 103 #define DT_VERS_1_5 DT_VERSION_NUMBER(1, 5, 0) 104 #define DT_VERS_1_6 DT_VERSION_NUMBER(1, 6, 0) 105 #define DT_VERS_1_6_1 DT_VERSION_NUMBER(1, 6, 1) 106 #define DT_VERS_1_6_2 DT_VERSION_NUMBER(1, 6, 2) 107 #define DT_VERS_1_6_3 DT_VERSION_NUMBER(1, 6, 3) 108 #define DT_VERS_1_7 DT_VERSION_NUMBER(1, 7, 0) 109 #define DT_VERS_1_7_1 DT_VERSION_NUMBER(1, 7, 1) 110 #define DT_VERS_1_8 DT_VERSION_NUMBER(1, 8, 0) 111 #define DT_VERS_1_8_1 DT_VERSION_NUMBER(1, 8, 1) 112 #define DT_VERS_1_9 DT_VERSION_NUMBER(1, 9, 0) 113 #define DT_VERS_1_9_1 DT_VERSION_NUMBER(1, 9, 1) 114 #define DT_VERS_1_9_2 DT_VERSION_NUMBER(1, 9, 2) 115 #define DT_VERS_LATEST DT_VERS_1_9_2 116 #define DT_VERS_STRING "Sun D 1.9.2" 117 118 const dt_version_t _dtrace_versions[] = { 119 DT_VERS_1_0, /* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */ 120 DT_VERS_1_1, /* D API 1.1.0 Solaris Express 6/05 */ 121 DT_VERS_1_2, /* D API 1.2.0 Solaris 10 Update 1 */ 122 DT_VERS_1_2_1, /* D API 1.2.1 Solaris Express 4/06 */ 123 DT_VERS_1_2_2, /* D API 1.2.2 Solaris Express 6/06 */ 124 DT_VERS_1_3, /* D API 1.3 Solaris Express 10/06 */ 125 DT_VERS_1_4, /* D API 1.4 Solaris Express 2/07 */ 126 DT_VERS_1_4_1, /* D API 1.4.1 Solaris Express 4/07 */ 127 DT_VERS_1_5, /* D API 1.5 Solaris Express 7/07 */ 128 DT_VERS_1_6, /* D API 1.6 */ 129 DT_VERS_1_6_1, /* D API 1.6.1 */ 130 DT_VERS_1_6_2, /* D API 1.6.2 */ 131 DT_VERS_1_6_3, /* D API 1.6.3 */ 132 DT_VERS_1_7, /* D API 1.7 */ 133 DT_VERS_1_7_1, /* D API 1.7.1 */ 134 DT_VERS_1_8, /* D API 1.8 */ 135 DT_VERS_1_8_1, /* D API 1.8.1 */ 136 DT_VERS_1_9, /* D API 1.9 */ 137 DT_VERS_1_9_1, /* D API 1.9.1 */ 138 DT_VERS_1_9_2, /* D API 1.9.2 */ 139 0 140 }; 141 142 /* 143 * Table of global identifiers. This is used to populate the global identifier 144 * hash when a new dtrace client open occurs. For more info see dt_ident.h. 145 * The global identifiers that represent functions use the dt_idops_func ops 146 * and specify the private data pointer as a prototype string which is parsed 147 * when the identifier is first encountered. These prototypes look like ANSI 148 * C function prototypes except that the special symbol "@" can be used as a 149 * wildcard to represent a single parameter of any type (i.e. any dt_node_t). 150 * The standard "..." notation can also be used to represent varargs. An empty 151 * parameter list is taken to mean void (that is, no arguments are permitted). 152 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional 153 * argument. 154 */ 155 static const dt_ident_t _dtrace_globals[] = { 156 { "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0, 157 &dt_idops_func, "void *(size_t)" }, 158 { "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0, 159 &dt_idops_type, "int64_t" }, 160 { "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0, 161 &dt_idops_type, "int64_t" }, 162 { "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0, 163 &dt_idops_type, "int64_t" }, 164 { "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0, 165 &dt_idops_type, "int64_t" }, 166 { "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0, 167 &dt_idops_type, "int64_t" }, 168 { "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0, 169 &dt_idops_type, "int64_t" }, 170 { "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0, 171 &dt_idops_type, "int64_t" }, 172 { "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0, 173 &dt_idops_type, "int64_t" }, 174 { "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0, 175 &dt_idops_type, "int64_t" }, 176 { "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0, 177 &dt_idops_type, "int64_t" }, 178 { "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0, 179 &dt_idops_args, NULL }, 180 { "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0, 181 &dt_idops_func, "void(@)" }, 182 { "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0, 183 &dt_idops_func, "string(const char *)" }, 184 { "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0, 185 &dt_idops_func, "void(void *, void *, size_t)" }, 186 { "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT, 187 DT_ATTR_STABCMN, DT_VERS_1_0, 188 &dt_idops_func, "void()" }, 189 { "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0, 190 &dt_idops_type, "uintptr_t" }, 191 { "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0, 192 &dt_idops_func, "void(int)" }, 193 { "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN, 194 DT_VERS_1_0, &dt_idops_func, "string(const char *)" }, 195 { "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0, 196 &dt_idops_func, "void(...)" }, 197 { "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0, 198 &dt_idops_func, "void(int)" }, 199 { "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0, 200 &dt_idops_func, "void *(uintptr_t, size_t)" }, 201 { "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR, 202 DT_ATTR_STABCMN, DT_VERS_1_0, 203 &dt_idops_func, "string(uintptr_t, [size_t])" }, 204 { "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN, 205 DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" }, 206 { "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0, 207 &dt_idops_func, "void(void *, uintptr_t, size_t)" }, 208 { "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR, 209 DT_ATTR_STABCMN, DT_VERS_1_0, 210 &dt_idops_func, "void(char *, uintptr_t, size_t)" }, 211 { "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0, 212 &dt_idops_func, "void()" }, 213 { "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD, 214 { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE, 215 DTRACE_CLASS_COMMON }, DT_VERS_1_0, 216 &dt_idops_type, "genunix`kthread_t *" }, 217 { "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME, 218 DT_ATTR_EVOLCMN, DT_VERS_1_0, 219 &dt_idops_func, "string(void *, int64_t)" }, 220 { "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN, 221 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 222 { "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0, 223 &dt_idops_func, "string(const char *)" }, 224 { "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0, 225 &dt_idops_func, "void(int)" }, 226 { "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0, 227 &dt_idops_type, "uint_t" }, 228 { "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0, 229 &dt_idops_type, "int" }, 230 { "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME, 231 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 232 { "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0, 233 &dt_idops_func, "void(int)" }, 234 { "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN, 235 DT_VERS_1_1, &dt_idops_func, "void(@, ...)" }, 236 { "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN, 237 DT_VERS_1_0, &dt_idops_func, "void()" }, 238 { "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 239 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 240 { "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR, 241 DT_ATTR_EVOLCMN, DT_VERS_1_0, 242 &dt_idops_func, "genunix`major_t(genunix`dev_t)" }, 243 { "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR, 244 DT_ATTR_EVOLCMN, DT_VERS_1_0, 245 &dt_idops_func, "genunix`minor_t(genunix`dev_t)" }, 246 { "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 247 &dt_idops_func, "uint32_t(uint32_t)" }, 248 { "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 249 &dt_idops_func, "uint64_t(uint64_t)" }, 250 { "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 251 &dt_idops_func, "uint16_t(uint16_t)" }, 252 { "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0, 253 &dt_idops_type, "gid_t" }, 254 { "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0, 255 &dt_idops_type, "uint_t" }, 256 { "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 257 &dt_idops_func, "int(const char *, const char *, [int])" }, 258 { "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN, 259 DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" }, 260 { "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN, 261 DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" }, 262 { "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN, 263 DT_VERS_1_5, &dt_idops_func, "string(int, void *)" }, 264 { "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0, 265 &dt_idops_type, "uint_t" }, 266 { "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 267 &dt_idops_func, "stack(...)" }, 268 { "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0, 269 &dt_idops_func, "string(int64_t, [int])" }, 270 { "llquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LLQUANTIZE, DT_ATTR_STABCMN, 271 DT_VERS_1_7, &dt_idops_func, 272 "void(@, int32_t, int32_t, int32_t, int32_t, ...)" }, 273 { "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE, 274 DT_ATTR_STABCMN, DT_VERS_1_0, 275 &dt_idops_func, "void(@, int32_t, int32_t, ...)" }, 276 { "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0, 277 &dt_idops_func, "void(@)" }, 278 { "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0, 279 &dt_idops_func, "void(@)" }, 280 { "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN, 281 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 282 { "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE, 283 DT_ATTR_STABCMN, DT_VERS_1_0, 284 &dt_idops_func, "size_t(mblk_t *)" }, 285 { "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE, 286 DT_ATTR_STABCMN, DT_VERS_1_0, 287 &dt_idops_func, "size_t(mblk_t *)" }, 288 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 289 DT_ATTR_EVOLCMN, DT_VERS_1_0, 290 &dt_idops_func, "int(genunix`kmutex_t *)" }, 291 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 292 DT_ATTR_EVOLCMN, DT_VERS_1_0, 293 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" }, 294 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 295 DT_ATTR_EVOLCMN, DT_VERS_1_0, 296 &dt_idops_func, "int(genunix`kmutex_t *)" }, 297 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 298 DT_ATTR_EVOLCMN, DT_VERS_1_0, 299 &dt_idops_func, "int(genunix`kmutex_t *)" }, 300 { "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 301 &dt_idops_func, "uint32_t(uint32_t)" }, 302 { "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 303 &dt_idops_func, "uint64_t(uint64_t)" }, 304 { "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 305 &dt_idops_func, "uint16_t(uint16_t)" }, 306 { "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN, 307 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 308 { "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0, 309 &dt_idops_func, "void()" }, 310 { "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0, 311 &dt_idops_type, "pid_t" }, 312 { "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0, 313 &dt_idops_type, "pid_t" }, 314 { "print", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINT, DT_ATTR_STABCMN, DT_VERS_1_9, 315 &dt_idops_func, "void(@)" }, 316 { "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0, 317 &dt_idops_func, "void(@, ...)" }, 318 { "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0, 319 &dt_idops_func, "void(@, ...)" }, 320 { "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC, 321 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 322 { "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD, 323 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 324 { "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME, 325 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 326 { "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV, 327 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 328 { "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF, 329 DT_ATTR_STABCMN, DT_VERS_1_0, 330 &dt_idops_func, "int(pid_t)" }, 331 { "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE, 332 DT_ATTR_STABCMN, DT_VERS_1_0, 333 &dt_idops_func, "void(@, ...)" }, 334 { "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0, 335 &dt_idops_func, "void(int)" }, 336 { "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0, 337 &dt_idops_func, "int()" }, 338 { "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 339 &dt_idops_func, "int(const char *, const char *, [int])" }, 340 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 341 DT_ATTR_EVOLCMN, DT_VERS_1_0, 342 &dt_idops_func, "int(genunix`krwlock_t *)" }, 343 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 344 DT_ATTR_EVOLCMN, DT_VERS_1_0, 345 &dt_idops_func, "int(genunix`krwlock_t *)" }, 346 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 347 DT_ATTR_EVOLCMN, DT_VERS_1_0, 348 &dt_idops_func, "int(genunix`krwlock_t *)" }, 349 { "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 350 &dt_idops_type, "void" }, 351 { "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN, 352 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" }, 353 { "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE, 354 DT_ATTR_STABCMN, DT_VERS_1_0, 355 &dt_idops_func, "void(int)" }, 356 { "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION, 357 DT_ATTR_STABCMN, DT_VERS_1_0, 358 &dt_idops_func, "int()" }, 359 { "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0, 360 &dt_idops_func, "stack(...)" }, 361 { "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH, 362 DT_ATTR_STABCMN, DT_VERS_1_0, 363 &dt_idops_type, "uint32_t" }, 364 { "stddev", DT_IDENT_AGGFUNC, 0, DTRACEAGG_STDDEV, DT_ATTR_STABCMN, 365 DT_VERS_1_6, &dt_idops_func, "void(@)" }, 366 { "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0, 367 &dt_idops_func, "void()" }, 368 { "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 369 &dt_idops_func, "string(const char *, char)" }, 370 { "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0, 371 &dt_idops_func, "size_t(const char *)" }, 372 { "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0, 373 &dt_idops_func, "string(const char *, const char *)" }, 374 { "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 375 &dt_idops_func, "string(const char *, char)" }, 376 { "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 377 &dt_idops_func, "string(const char *, const char *)" }, 378 { "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1, 379 &dt_idops_func, "string(const char *, const char *)" }, 380 { "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 381 &dt_idops_func, "string(const char *, int, [int])" }, 382 { "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0, 383 &dt_idops_func, "void(@)" }, 384 { "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 385 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 386 { "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0, 387 &dt_idops_func, "void(@, ...)" }, 388 { "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 389 &dt_idops_type, "void" }, 390 { "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0, 391 &dt_idops_type, "id_t" }, 392 { "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP, 393 DT_ATTR_STABCMN, DT_VERS_1_0, 394 &dt_idops_type, "uint64_t" }, 395 { "tolower", DT_IDENT_FUNC, 0, DIF_SUBR_TOLOWER, DT_ATTR_STABCMN, DT_VERS_1_8, 396 &dt_idops_func, "string(const char *)" }, 397 { "toupper", DT_IDENT_FUNC, 0, DIF_SUBR_TOUPPER, DT_ATTR_STABCMN, DT_VERS_1_8, 398 &dt_idops_func, "string(const char *)" }, 399 { "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0, 400 &dt_idops_func, "void(@)" }, 401 { "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM, 402 DT_ATTR_STABCMN, DT_VERS_1_0, 403 &dt_idops_func, "void(@, size_t, ...)" }, 404 { "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN, 405 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 406 { "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN, 407 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 408 { "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN, 409 DT_VERS_1_2, &dt_idops_type, "uint64_t" }, 410 { "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 411 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 412 { "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0, 413 &dt_idops_type, "uid_t" }, 414 { "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN, 415 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 416 { "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0, 417 &dt_idops_regs, NULL }, 418 { "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 419 &dt_idops_func, "stack(...)" }, 420 { "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH, 421 DT_ATTR_STABCMN, DT_VERS_1_2, 422 &dt_idops_type, "uint32_t" }, 423 { "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 424 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 425 { "vmregs", DT_IDENT_ARRAY, 0, DIF_VAR_VMREGS, DT_ATTR_STABCMN, DT_VERS_1_7, 426 &dt_idops_regs, NULL }, 427 { "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP, 428 DT_ATTR_STABCMN, DT_VERS_1_0, 429 &dt_idops_type, "uint64_t" }, 430 { "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP, 431 DT_ATTR_STABCMN, DT_VERS_1_0, 432 &dt_idops_type, "int64_t" }, 433 { "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME, 434 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 435 { NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL } 436 }; 437 438 /* 439 * Tables of ILP32 intrinsic integer and floating-point type templates to use 440 * to populate the dynamic "C" CTF type container. 441 */ 442 static const dt_intrinsic_t _dtrace_intrinsics_32[] = { 443 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 444 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 445 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 446 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 447 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 448 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 449 { "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 450 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 451 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 452 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 453 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 454 { "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 455 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 456 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 457 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 458 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 459 { "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER }, 460 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 461 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 462 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 463 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 464 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 465 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 466 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 467 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 468 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 469 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 470 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 471 { NULL, { 0, 0, 0 }, 0 } 472 }; 473 474 /* 475 * Tables of LP64 intrinsic integer and floating-point type templates to use 476 * to populate the dynamic "C" CTF type container. 477 */ 478 static const dt_intrinsic_t _dtrace_intrinsics_64[] = { 479 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 480 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 481 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 482 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 483 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 484 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 485 { "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 486 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 487 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 488 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 489 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 490 { "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 491 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 492 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 493 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 494 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 495 { "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER }, 496 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 497 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 498 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 499 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 500 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 501 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 502 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 503 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 504 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 505 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 506 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 507 { NULL, { 0, 0, 0 }, 0 } 508 }; 509 510 /* 511 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container. 512 * These aliases ensure that D definitions can use typical <sys/types.h> names. 513 */ 514 static const dt_typedef_t _dtrace_typedefs_32[] = { 515 { "char", "int8_t" }, 516 { "short", "int16_t" }, 517 { "int", "int32_t" }, 518 { "long long", "int64_t" }, 519 { "int", "intptr_t" }, 520 { "int", "ssize_t" }, 521 { "unsigned char", "uint8_t" }, 522 { "unsigned short", "uint16_t" }, 523 { "unsigned", "uint32_t" }, 524 { "unsigned long long", "uint64_t" }, 525 { "unsigned char", "uchar_t" }, 526 { "unsigned short", "ushort_t" }, 527 { "unsigned", "uint_t" }, 528 { "unsigned long", "ulong_t" }, 529 { "unsigned long long", "u_longlong_t" }, 530 { "int", "ptrdiff_t" }, 531 { "unsigned", "uintptr_t" }, 532 { "unsigned", "size_t" }, 533 { "long", "id_t" }, 534 { "long", "pid_t" }, 535 { NULL, NULL } 536 }; 537 538 /* 539 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container. 540 * These aliases ensure that D definitions can use typical <sys/types.h> names. 541 */ 542 static const dt_typedef_t _dtrace_typedefs_64[] = { 543 { "char", "int8_t" }, 544 { "short", "int16_t" }, 545 { "int", "int32_t" }, 546 { "long", "int64_t" }, 547 { "long", "intptr_t" }, 548 { "long", "ssize_t" }, 549 { "unsigned char", "uint8_t" }, 550 { "unsigned short", "uint16_t" }, 551 { "unsigned", "uint32_t" }, 552 { "unsigned long", "uint64_t" }, 553 { "unsigned char", "uchar_t" }, 554 { "unsigned short", "ushort_t" }, 555 { "unsigned", "uint_t" }, 556 { "unsigned long", "ulong_t" }, 557 { "unsigned long long", "u_longlong_t" }, 558 { "long", "ptrdiff_t" }, 559 { "unsigned long", "uintptr_t" }, 560 { "unsigned long", "size_t" }, 561 { "int", "id_t" }, 562 { "int", "pid_t" }, 563 { NULL, NULL } 564 }; 565 566 /* 567 * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[] 568 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 569 */ 570 static const dt_intdesc_t _dtrace_ints_32[] = { 571 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 572 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 573 { "long", NULL, CTF_ERR, 0x7fffffffULL }, 574 { "unsigned long", NULL, CTF_ERR, 0xffffffffULL }, 575 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 576 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 577 }; 578 579 /* 580 * Tables of LP64 integer type templates used to populate the dtp->dt_ints[] 581 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 582 */ 583 static const dt_intdesc_t _dtrace_ints_64[] = { 584 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 585 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 586 { "long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 587 { "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL }, 588 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 589 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 590 }; 591 592 /* 593 * Table of macro variable templates used to populate the macro identifier hash 594 * when a new dtrace client open occurs. Values are set by dtrace_update(). 595 */ 596 static const dt_ident_t _dtrace_macros[] = { 597 { "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 598 { "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 599 { "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 600 { "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 601 { "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 602 { "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 603 { "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 604 { "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 605 { "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 606 { "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 607 { "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 608 { NULL, 0, 0, 0, { 0, 0, 0 }, 0 } 609 }; 610 611 /* 612 * Hard-wired definition string to be compiled and cached every time a new 613 * DTrace library handle is initialized. This string should only be used to 614 * contain definitions that should be present regardless of DTRACE_O_NOLIBS. 615 */ 616 static const char _dtrace_hardwire[] = "\ 617 inline long NULL = 0; \n\ 618 #pragma D binding \"1.0\" NULL\n\ 619 "; 620 621 /* 622 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV. 623 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel. 624 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are 625 * relying on the fact that when running dtrace(1M), isaexec will invoke the 626 * binary with the same bitness as the kernel, which is what we want by default 627 * when generating our DIF. The user can override the choice using oflags. 628 */ 629 static const dtrace_conf_t _dtrace_conf = { 630 DIF_VERSION, /* dtc_difversion */ 631 DIF_DIR_NREGS, /* dtc_difintregs */ 632 DIF_DTR_NREGS, /* dtc_diftupregs */ 633 CTF_MODEL_NATIVE /* dtc_ctfmodel */ 634 }; 635 636 const dtrace_attribute_t _dtrace_maxattr = { 637 DTRACE_STABILITY_MAX, 638 DTRACE_STABILITY_MAX, 639 DTRACE_CLASS_MAX 640 }; 641 642 const dtrace_attribute_t _dtrace_defattr = { 643 DTRACE_STABILITY_STABLE, 644 DTRACE_STABILITY_STABLE, 645 DTRACE_CLASS_COMMON 646 }; 647 648 const dtrace_attribute_t _dtrace_symattr = { 649 DTRACE_STABILITY_PRIVATE, 650 DTRACE_STABILITY_PRIVATE, 651 DTRACE_CLASS_UNKNOWN 652 }; 653 654 const dtrace_attribute_t _dtrace_typattr = { 655 DTRACE_STABILITY_PRIVATE, 656 DTRACE_STABILITY_PRIVATE, 657 DTRACE_CLASS_UNKNOWN 658 }; 659 660 const dtrace_attribute_t _dtrace_prvattr = { 661 DTRACE_STABILITY_PRIVATE, 662 DTRACE_STABILITY_PRIVATE, 663 DTRACE_CLASS_UNKNOWN 664 }; 665 666 const dtrace_pattr_t _dtrace_prvdesc = { 667 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 668 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 669 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 670 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 671 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 672 }; 673 674 const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */ 675 const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */ 676 677 const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */ 678 const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */ 679 680 int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */ 681 int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */ 682 uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */ 683 uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */ 684 uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */ 685 uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */ 686 size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */ 687 int _dtrace_argmax = 32; /* default maximum number of probe arguments */ 688 689 int _dtrace_debug = 0; /* debug messages enabled (off) */ 690 const char *const _dtrace_version = DT_VERS_STRING; /* API version string */ 691 int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */ 692 693 typedef struct dt_fdlist { 694 int *df_fds; /* array of provider driver file descriptors */ 695 uint_t df_ents; /* number of valid elements in df_fds[] */ 696 uint_t df_size; /* size of df_fds[] */ 697 } dt_fdlist_t; 698 699 #pragma init(_dtrace_init) 700 void 701 _dtrace_init(void) 702 { 703 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL; 704 705 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) { 706 if (rd_init(_dtrace_rdvers) == RD_OK) 707 break; 708 } 709 } 710 711 static dtrace_hdl_t * 712 set_open_errno(dtrace_hdl_t *dtp, int *errp, int err) 713 { 714 if (dtp != NULL) 715 dtrace_close(dtp); 716 if (errp != NULL) 717 *errp = err; 718 return (NULL); 719 } 720 721 static void 722 dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp) 723 { 724 dt_provmod_t *prov; 725 char path[PATH_MAX]; 726 struct dirent *dp, *ep; 727 DIR *dirp; 728 int fd; 729 730 if ((dirp = opendir(_dtrace_provdir)) == NULL) 731 return; /* failed to open directory; just skip it */ 732 733 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1); 734 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1); 735 736 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) { 737 if (dp->d_name[0] == '.') 738 continue; /* skip "." and ".." */ 739 740 if (dfp->df_ents == dfp->df_size) { 741 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 742 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 743 744 if (fds == NULL) 745 break; /* skip the rest of this directory */ 746 747 dfp->df_fds = fds; 748 dfp->df_size = size; 749 } 750 751 (void) snprintf(path, sizeof (path), "%s/%s", 752 _dtrace_provdir, dp->d_name); 753 754 if ((fd = open(path, O_RDONLY)) == -1) 755 continue; /* failed to open driver; just skip it */ 756 757 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 758 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) { 759 free(prov); 760 (void) close(fd); 761 break; 762 } 763 764 (void) strcpy(prov->dp_name, dp->d_name); 765 prov->dp_next = *provmod; 766 *provmod = prov; 767 768 dt_dprintf("opened provider %s\n", dp->d_name); 769 dfp->df_fds[dfp->df_ents++] = fd; 770 } 771 772 (void) closedir(dirp); 773 } 774 775 static void 776 dt_provmod_destroy(dt_provmod_t **provmod) 777 { 778 dt_provmod_t *next, *current; 779 780 for (current = *provmod; current != NULL; current = next) { 781 next = current->dp_next; 782 free(current->dp_name); 783 free(current); 784 } 785 786 *provmod = NULL; 787 } 788 789 static const char * 790 dt_get_sysinfo(int cmd, char *buf, size_t len) 791 { 792 ssize_t rv = sysinfo(cmd, buf, len); 793 char *p = buf; 794 795 if (rv < 0 || rv > len) 796 (void) snprintf(buf, len, "%s", "Unknown"); 797 798 while ((p = strchr(p, '.')) != NULL) 799 *p++ = '_'; 800 801 return (buf); 802 } 803 804 static dtrace_hdl_t * 805 dt_vopen(int version, int flags, int *errp, 806 const dtrace_vector_t *vector, void *arg) 807 { 808 dtrace_hdl_t *dtp = NULL; 809 int dtfd = -1, ftfd = -1, fterr = 0; 810 dtrace_prog_t *pgp; 811 dt_module_t *dmp; 812 dt_provmod_t *provmod = NULL; 813 int i, err; 814 struct rlimit rl; 815 816 const dt_intrinsic_t *dinp; 817 const dt_typedef_t *dtyp; 818 const dt_ident_t *idp; 819 820 dtrace_typeinfo_t dtt; 821 ctf_funcinfo_t ctc; 822 ctf_arinfo_t ctr; 823 824 dt_fdlist_t df = { NULL, 0, 0 }; 825 826 char isadef[32], utsdef[32]; 827 char s1[64], s2[64]; 828 829 if (version <= 0) 830 return (set_open_errno(dtp, errp, EINVAL)); 831 832 if (version > DTRACE_VERSION) 833 return (set_open_errno(dtp, errp, EDT_VERSION)); 834 835 if (version < DTRACE_VERSION) { 836 /* 837 * Currently, increasing the library version number is used to 838 * denote a binary incompatible change. That is, a consumer 839 * of the library cannot run on a version of the library with 840 * a higher DTRACE_VERSION number than the consumer compiled 841 * against. Once the library API has been committed to, 842 * backwards binary compatibility will be required; at that 843 * time, this check should change to return EDT_OVERSION only 844 * if the specified version number is less than the version 845 * number at the time of interface commitment. 846 */ 847 return (set_open_errno(dtp, errp, EDT_OVERSION)); 848 } 849 850 if (flags & ~DTRACE_O_MASK) 851 return (set_open_errno(dtp, errp, EINVAL)); 852 853 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32)) 854 return (set_open_errno(dtp, errp, EINVAL)); 855 856 if (vector == NULL && arg != NULL) 857 return (set_open_errno(dtp, errp, EINVAL)); 858 859 if (elf_version(EV_CURRENT) == EV_NONE) 860 return (set_open_errno(dtp, errp, EDT_ELFVERSION)); 861 862 if (vector != NULL || (flags & DTRACE_O_NODEV)) 863 goto alloc; /* do not attempt to open dtrace device */ 864 865 /* 866 * Before we get going, crank our limit on file descriptors up to the 867 * hard limit. This is to allow for the fact that libproc keeps file 868 * descriptors to objects open for the lifetime of the proc handle; 869 * without raising our hard limit, we would have an acceptably small 870 * bound on the number of processes that we could concurrently 871 * instrument with the pid provider. 872 */ 873 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) { 874 rl.rlim_cur = rl.rlim_max; 875 (void) setrlimit(RLIMIT_NOFILE, &rl); 876 } 877 878 /* 879 * Get the device path of each of the providers. We hold them open 880 * in the df.df_fds list until we open the DTrace driver itself, 881 * allowing us to see all of the probes provided on this system. Once 882 * we have the DTrace driver open, we can safely close all the providers 883 * now that they have registered with the framework. 884 */ 885 dt_provmod_open(&provmod, &df); 886 887 dtfd = open("/dev/dtrace/dtrace", O_RDWR); 888 err = errno; /* save errno from opening dtfd */ 889 890 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR); 891 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */ 892 893 while (df.df_ents-- != 0) 894 (void) close(df.df_fds[df.df_ents]); 895 896 free(df.df_fds); 897 898 /* 899 * If we failed to open the dtrace device, fail dtrace_open(). 900 * We convert some kernel errnos to custom libdtrace errnos to 901 * improve the resulting message from the usual strerror(). 902 */ 903 if (dtfd == -1) { 904 dt_provmod_destroy(&provmod); 905 switch (err) { 906 case ENOENT: 907 err = EDT_NOENT; 908 break; 909 case EBUSY: 910 err = EDT_BUSY; 911 break; 912 case EACCES: 913 err = EDT_ACCESS; 914 break; 915 } 916 return (set_open_errno(dtp, errp, err)); 917 } 918 919 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC); 920 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC); 921 922 alloc: 923 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL) 924 return (set_open_errno(dtp, errp, EDT_NOMEM)); 925 926 bzero(dtp, sizeof (dtrace_hdl_t)); 927 dtp->dt_oflags = flags; 928 dtp->dt_prcmode = DT_PROC_STOP_PREINIT; 929 dtp->dt_linkmode = DT_LINK_KERNEL; 930 dtp->dt_linktype = DT_LTYP_ELF; 931 dtp->dt_xlatemode = DT_XL_STATIC; 932 dtp->dt_stdcmode = DT_STDC_XA; 933 dtp->dt_version = version; 934 dtp->dt_fd = dtfd; 935 dtp->dt_ftfd = ftfd; 936 dtp->dt_fterr = fterr; 937 dtp->dt_cdefs_fd = -1; 938 dtp->dt_ddefs_fd = -1; 939 dtp->dt_stdout_fd = -1; 940 dtp->dt_modbuckets = _dtrace_strbuckets; 941 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *)); 942 dtp->dt_provbuckets = _dtrace_strbuckets; 943 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *)); 944 dt_proc_init(dtp); 945 dtp->dt_vmax = DT_VERS_LATEST; 946 dtp->dt_cpp_path = strdup(_dtrace_defcpp); 947 dtp->dt_cpp_argv = malloc(sizeof (char *)); 948 dtp->dt_cpp_argc = 1; 949 dtp->dt_cpp_args = 1; 950 dtp->dt_ld_path = strdup(_dtrace_defld); 951 dtp->dt_provmod = provmod; 952 dtp->dt_vector = vector; 953 dtp->dt_varg = arg; 954 dt_dof_init(dtp); 955 (void) uname(&dtp->dt_uts); 956 957 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL || 958 dtp->dt_procs == NULL || dtp->dt_proc_env == NULL || 959 dtp->dt_ld_path == NULL || dtp->dt_cpp_path == NULL || 960 dtp->dt_cpp_argv == NULL) 961 return (set_open_errno(dtp, errp, EDT_NOMEM)); 962 963 for (i = 0; i < DTRACEOPT_MAX; i++) 964 dtp->dt_options[i] = DTRACEOPT_UNSET; 965 966 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path); 967 968 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u", 969 (uint_t)(sizeof (void *) * NBBY)); 970 971 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s", 972 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)), 973 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2))); 974 975 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL || 976 dt_cpp_add_arg(dtp, "-D__unix") == NULL || 977 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL || 978 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL || 979 dt_cpp_add_arg(dtp, isadef) == NULL || 980 dt_cpp_add_arg(dtp, utsdef) == NULL) 981 return (set_open_errno(dtp, errp, EDT_NOMEM)); 982 983 if (flags & DTRACE_O_NODEV) 984 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf)); 985 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0) 986 return (set_open_errno(dtp, errp, errno)); 987 988 if (flags & DTRACE_O_LP64) 989 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64; 990 else if (flags & DTRACE_O_ILP32) 991 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32; 992 993 #ifdef __sparc 994 /* 995 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h> 996 * and __sparcv9 is defined if we are doing a 64-bit compile. 997 */ 998 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL) 999 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1000 1001 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 && 1002 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL) 1003 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1004 #endif 1005 1006 #ifdef __x86 1007 /* 1008 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit 1009 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC, 1010 * they are defined exclusive of one another (see PSARC 2004/619). 1011 */ 1012 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 1013 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL) 1014 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1015 } else { 1016 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL) 1017 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1018 } 1019 #endif 1020 1021 if (dtp->dt_conf.dtc_difversion < DIF_VERSION) 1022 return (set_open_errno(dtp, errp, EDT_DIFVERS)); 1023 1024 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) 1025 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32)); 1026 else 1027 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64)); 1028 1029 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX); 1030 dtp->dt_aggs = dt_idhash_create("aggregation", NULL, 1031 DTRACE_AGGVARIDNONE + 1, UINT_MAX); 1032 1033 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals, 1034 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1035 1036 dtp->dt_tls = dt_idhash_create("thread local", NULL, 1037 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1038 1039 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL || 1040 dtp->dt_globals == NULL || dtp->dt_tls == NULL) 1041 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1042 1043 /* 1044 * Populate the dt_macros identifier hash table by hand: we can't use 1045 * the dt_idhash_populate() mechanism because we're not yet compiling 1046 * and dtrace_update() needs to immediately reference these idents. 1047 */ 1048 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) { 1049 if (dt_idhash_insert(dtp->dt_macros, idp->di_name, 1050 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr, 1051 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw, 1052 idp->di_iarg, 0) == NULL) 1053 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1054 } 1055 1056 /* 1057 * Update the module list using /system/object and load the values for 1058 * the macro variable definitions according to the current process. 1059 */ 1060 dtrace_update(dtp); 1061 1062 /* 1063 * Select the intrinsics and typedefs we want based on the data model. 1064 * The intrinsics are under "C". The typedefs are added under "D". 1065 */ 1066 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) { 1067 dinp = _dtrace_intrinsics_32; 1068 dtyp = _dtrace_typedefs_32; 1069 } else { 1070 dinp = _dtrace_intrinsics_64; 1071 dtyp = _dtrace_typedefs_64; 1072 } 1073 1074 /* 1075 * Create a dynamic CTF container under the "C" scope for intrinsic 1076 * types and types defined in ANSI-C header files that are included. 1077 */ 1078 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL) 1079 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1080 1081 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1082 return (set_open_errno(dtp, errp, EDT_CTF)); 1083 1084 dt_dprintf("created CTF container for %s (%p)\n", 1085 dmp->dm_name, (void *)dmp->dm_ctfp); 1086 1087 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1088 ctf_setspecific(dmp->dm_ctfp, dmp); 1089 1090 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1091 dmp->dm_modid = -1; /* no module ID */ 1092 1093 /* 1094 * Fill the dynamic "C" CTF container with all of the intrinsic 1095 * integer and floating-point types appropriate for this data model. 1096 */ 1097 for (; dinp->din_name != NULL; dinp++) { 1098 if (dinp->din_kind == CTF_K_INTEGER) { 1099 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT, 1100 dinp->din_name, &dinp->din_data); 1101 } else { 1102 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT, 1103 dinp->din_name, &dinp->din_data); 1104 } 1105 1106 if (err == CTF_ERR) { 1107 dt_dprintf("failed to add %s to C container: %s\n", 1108 dinp->din_name, ctf_errmsg( 1109 ctf_errno(dmp->dm_ctfp))); 1110 return (set_open_errno(dtp, errp, EDT_CTF)); 1111 } 1112 } 1113 1114 if (ctf_update(dmp->dm_ctfp) != 0) { 1115 dt_dprintf("failed to update C container: %s\n", 1116 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1117 return (set_open_errno(dtp, errp, EDT_CTF)); 1118 } 1119 1120 /* 1121 * Add intrinsic pointer types that are needed to initialize printf 1122 * format dictionary types (see table in dt_printf.c). 1123 */ 1124 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1125 ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1126 1127 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1128 ctf_lookup_by_name(dmp->dm_ctfp, "char")); 1129 1130 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1131 ctf_lookup_by_name(dmp->dm_ctfp, "int")); 1132 1133 if (ctf_update(dmp->dm_ctfp) != 0) { 1134 dt_dprintf("failed to update C container: %s\n", 1135 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1136 return (set_open_errno(dtp, errp, EDT_CTF)); 1137 } 1138 1139 /* 1140 * Create a dynamic CTF container under the "D" scope for types that 1141 * are defined by the D program itself or on-the-fly by the D compiler. 1142 * The "D" CTF container is a child of the "C" CTF container. 1143 */ 1144 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL) 1145 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1146 1147 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1148 return (set_open_errno(dtp, errp, EDT_CTF)); 1149 1150 dt_dprintf("created CTF container for %s (%p)\n", 1151 dmp->dm_name, (void *)dmp->dm_ctfp); 1152 1153 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1154 ctf_setspecific(dmp->dm_ctfp, dmp); 1155 1156 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1157 dmp->dm_modid = -1; /* no module ID */ 1158 1159 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) { 1160 dt_dprintf("failed to import D parent container: %s\n", 1161 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1162 return (set_open_errno(dtp, errp, EDT_CTF)); 1163 } 1164 1165 /* 1166 * Fill the dynamic "D" CTF container with all of the built-in typedefs 1167 * that we need to use for our D variable and function definitions. 1168 * This ensures that basic inttypes.h names are always available to us. 1169 */ 1170 for (; dtyp->dty_src != NULL; dtyp++) { 1171 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1172 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp, 1173 dtyp->dty_src)) == CTF_ERR) { 1174 dt_dprintf("failed to add typedef %s %s to D " 1175 "container: %s", dtyp->dty_src, dtyp->dty_dst, 1176 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1177 return (set_open_errno(dtp, errp, EDT_CTF)); 1178 } 1179 } 1180 1181 /* 1182 * Insert a CTF ID corresponding to a pointer to a type of kind 1183 * CTF_K_FUNCTION we can use in the compiler for function pointers. 1184 * CTF treats all function pointers as "int (*)()" so we only need one. 1185 */ 1186 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int"); 1187 ctc.ctc_argc = 0; 1188 ctc.ctc_flags = 0; 1189 1190 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp, 1191 CTF_ADD_ROOT, &ctc, NULL); 1192 1193 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp, 1194 CTF_ADD_ROOT, dtp->dt_type_func); 1195 1196 /* 1197 * We also insert CTF definitions for the special D intrinsic types 1198 * string and <DYN> into the D container. The string type is added 1199 * as a typedef of char[n]. The <DYN> type is an alias for void. 1200 * We compare types to these special CTF ids throughout the compiler. 1201 */ 1202 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char"); 1203 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long"); 1204 ctr.ctr_nelems = _dtrace_strsize; 1205 1206 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1207 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr)); 1208 1209 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1210 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1211 1212 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1213 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1214 1215 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1216 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1217 1218 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1219 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1220 1221 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR || 1222 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR || 1223 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR || 1224 dtp->dt_type_usymaddr == CTF_ERR) { 1225 dt_dprintf("failed to add intrinsic to D container: %s\n", 1226 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1227 return (set_open_errno(dtp, errp, EDT_CTF)); 1228 } 1229 1230 if (ctf_update(dmp->dm_ctfp) != 0) { 1231 dt_dprintf("failed update D container: %s\n", 1232 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1233 return (set_open_errno(dtp, errp, EDT_CTF)); 1234 } 1235 1236 /* 1237 * Initialize the integer description table used to convert integer 1238 * constants to the appropriate types. Refer to the comments above 1239 * dt_node_int() for a complete description of how this table is used. 1240 */ 1241 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) { 1242 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY, 1243 dtp->dt_ints[i].did_name, &dtt) != 0) { 1244 dt_dprintf("failed to lookup integer type %s: %s\n", 1245 dtp->dt_ints[i].did_name, 1246 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1247 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1248 } 1249 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp; 1250 dtp->dt_ints[i].did_type = dtt.dtt_type; 1251 } 1252 1253 /* 1254 * Now that we've created the "C" and "D" containers, move them to the 1255 * start of the module list so that these types and symbols are found 1256 * first (for stability) when iterating through the module list. 1257 */ 1258 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs); 1259 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs); 1260 1261 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs); 1262 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs); 1263 1264 if (dt_pfdict_create(dtp) == -1) 1265 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1266 1267 /* 1268 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default 1269 * because without /dev/dtrace open, we will not be able to load the 1270 * names and attributes of any providers or probes from the kernel. 1271 */ 1272 if (flags & DTRACE_O_NODEV) 1273 dtp->dt_cflags |= DTRACE_C_ZDEFS; 1274 1275 /* 1276 * Load hard-wired inlines into the definition cache by calling the 1277 * compiler on the raw definition string defined above. 1278 */ 1279 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire, 1280 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) { 1281 dt_dprintf("failed to load hard-wired definitions: %s\n", 1282 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1283 return (set_open_errno(dtp, errp, EDT_HARDWIRE)); 1284 } 1285 1286 dt_program_destroy(dtp, pgp); 1287 1288 /* 1289 * Set up the default DTrace library path. Once set, the next call to 1290 * dt_compile() will compile all the libraries. We intentionally defer 1291 * library processing to improve overhead for clients that don't ever 1292 * compile, and to provide better error reporting (because the full 1293 * reporting of compiler errors requires dtrace_open() to succeed). 1294 */ 1295 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0) 1296 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1297 1298 return (dtp); 1299 } 1300 1301 dtrace_hdl_t * 1302 dtrace_open(int version, int flags, int *errp) 1303 { 1304 return (dt_vopen(version, flags, errp, NULL, NULL)); 1305 } 1306 1307 dtrace_hdl_t * 1308 dtrace_vopen(int version, int flags, int *errp, 1309 const dtrace_vector_t *vector, void *arg) 1310 { 1311 return (dt_vopen(version, flags, errp, vector, arg)); 1312 } 1313 1314 void 1315 dtrace_close(dtrace_hdl_t *dtp) 1316 { 1317 dt_ident_t *idp, *ndp; 1318 dt_module_t *dmp; 1319 dt_provider_t *pvp; 1320 dtrace_prog_t *pgp; 1321 dt_xlator_t *dxp; 1322 dt_dirpath_t *dirp; 1323 int i; 1324 1325 if (dtp->dt_procs != NULL) 1326 dt_proc_fini(dtp); 1327 1328 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL) 1329 dt_program_destroy(dtp, pgp); 1330 1331 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL) 1332 dt_xlator_destroy(dtp, dxp); 1333 1334 dt_free(dtp, dtp->dt_xlatormap); 1335 1336 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) { 1337 ndp = idp->di_next; 1338 dt_ident_destroy(idp); 1339 } 1340 1341 if (dtp->dt_macros != NULL) 1342 dt_idhash_destroy(dtp->dt_macros); 1343 if (dtp->dt_aggs != NULL) 1344 dt_idhash_destroy(dtp->dt_aggs); 1345 if (dtp->dt_globals != NULL) 1346 dt_idhash_destroy(dtp->dt_globals); 1347 if (dtp->dt_tls != NULL) 1348 dt_idhash_destroy(dtp->dt_tls); 1349 1350 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL) 1351 dt_module_destroy(dtp, dmp); 1352 1353 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL) 1354 dt_provider_destroy(dtp, pvp); 1355 1356 if (dtp->dt_fd != -1) 1357 (void) close(dtp->dt_fd); 1358 if (dtp->dt_ftfd != -1) 1359 (void) close(dtp->dt_ftfd); 1360 if (dtp->dt_cdefs_fd != -1) 1361 (void) close(dtp->dt_cdefs_fd); 1362 if (dtp->dt_ddefs_fd != -1) 1363 (void) close(dtp->dt_ddefs_fd); 1364 if (dtp->dt_stdout_fd != -1) 1365 (void) close(dtp->dt_stdout_fd); 1366 1367 dt_epid_destroy(dtp); 1368 dt_aggid_destroy(dtp); 1369 dt_format_destroy(dtp); 1370 dt_strdata_destroy(dtp); 1371 dt_buffered_destroy(dtp); 1372 dt_aggregate_destroy(dtp); 1373 dt_pfdict_destroy(dtp); 1374 dt_provmod_destroy(&dtp->dt_provmod); 1375 dt_dof_fini(dtp); 1376 1377 for (i = 1; i < dtp->dt_cpp_argc; i++) 1378 free(dtp->dt_cpp_argv[i]); 1379 1380 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) { 1381 dt_list_delete(&dtp->dt_lib_path, dirp); 1382 free(dirp->dir_path); 1383 free(dirp); 1384 } 1385 1386 free(dtp->dt_cpp_argv); 1387 free(dtp->dt_cpp_path); 1388 free(dtp->dt_ld_path); 1389 1390 free(dtp->dt_mods); 1391 free(dtp->dt_provs); 1392 free(dtp); 1393 } 1394 1395 int 1396 dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods) 1397 { 1398 dt_provmod_t *prov; 1399 int i = 0; 1400 1401 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) { 1402 if (i < nmods) 1403 mods[i] = prov->dp_name; 1404 } 1405 1406 return (i); 1407 } 1408 1409 int 1410 dtrace_ctlfd(dtrace_hdl_t *dtp) 1411 { 1412 return (dtp->dt_fd); 1413 }