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