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