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) 2012, Joyent, Inc. All rights reserved. 25 * Copyright (c) 2012 by Delphix. All rights reserved. 26 */ 27 28 #include <sys/types.h> 29 #include <sys/modctl.h> 30 #include <sys/systeminfo.h> 31 #include <sys/resource.h> 32 33 #include <libelf.h> 34 #include <strings.h> 35 #include <alloca.h> 36 #include <limits.h> 37 #include <unistd.h> 38 #include <stdlib.h> 39 #include <stdio.h> 40 #include <fcntl.h> 41 #include <errno.h> 42 #include <assert.h> 43 44 #define _POSIX_PTHREAD_SEMANTICS 45 #include <dirent.h> 46 #undef _POSIX_PTHREAD_SEMANTICS 47 48 #include <dt_impl.h> 49 #include <dt_program.h> 50 #include <dt_module.h> 51 #include <dt_printf.h> 52 #include <dt_string.h> 53 #include <dt_provider.h> 54 55 /* 56 * Stability and versioning definitions. These #defines are used in the tables 57 * of identifiers below to fill in the attribute and version fields associated 58 * with each identifier. The DT_ATTR_* macros are a convenience to permit more 59 * concise declarations of common attributes such as Stable/Stable/Common. The 60 * DT_VERS_* macros declare the encoded integer values of all versions used so 61 * far. DT_VERS_LATEST must correspond to the latest version value among all 62 * versions exported by the D compiler. DT_VERS_STRING must be an ASCII string 63 * that contains DT_VERS_LATEST within it along with any suffixes (e.g. Beta). 64 * You must update DT_VERS_LATEST and DT_VERS_STRING when adding a new version, 65 * and then add the new version to the _dtrace_versions[] array declared below. 66 * Refer to the Solaris Dynamic Tracing Guide Stability and Versioning chapters 67 * respectively for an explanation of these DTrace features and their values. 68 * 69 * NOTE: Although the DTrace versioning scheme supports the labeling and 70 * introduction of incompatible changes (e.g. dropping an interface in a 71 * major release), the libdtrace code does not currently support this. 72 * All versions are assumed to strictly inherit from one another. If 73 * we ever need to provide divergent interfaces, this will need work. 74 */ 75 #define DT_ATTR_STABCMN { DTRACE_STABILITY_STABLE, \ 76 DTRACE_STABILITY_STABLE, DTRACE_CLASS_COMMON } 77 78 #define DT_ATTR_EVOLCMN { DTRACE_STABILITY_EVOLVING, \ 79 DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_COMMON \ 80 } 81 82 /* 83 * The version number should be increased for every customer visible release 84 * of DTrace. The major number should be incremented when a fundamental 85 * change has been made that would affect all consumers, and would reflect 86 * sweeping changes to DTrace or the D language. The minor number should be 87 * incremented when a change is introduced that could break scripts that had 88 * previously worked; for example, adding a new built-in variable could break 89 * a script which was already using that identifier. The micro number should 90 * be changed when introducing functionality changes or major bug fixes that 91 * do not affect backward compatibility -- this is merely to make capabilities 92 * easily determined from the version number. Minor bugs do not require any 93 * modification to the version number. 94 */ 95 #define DT_VERS_1_0 DT_VERSION_NUMBER(1, 0, 0) 96 #define DT_VERS_1_1 DT_VERSION_NUMBER(1, 1, 0) 97 #define DT_VERS_1_2 DT_VERSION_NUMBER(1, 2, 0) 98 #define DT_VERS_1_2_1 DT_VERSION_NUMBER(1, 2, 1) 99 #define DT_VERS_1_2_2 DT_VERSION_NUMBER(1, 2, 2) 100 #define DT_VERS_1_3 DT_VERSION_NUMBER(1, 3, 0) 101 #define DT_VERS_1_4 DT_VERSION_NUMBER(1, 4, 0) 102 #define DT_VERS_1_4_1 DT_VERSION_NUMBER(1, 4, 1) 103 #define DT_VERS_1_5 DT_VERSION_NUMBER(1, 5, 0) 104 #define DT_VERS_1_6 DT_VERSION_NUMBER(1, 6, 0) 105 #define DT_VERS_1_6_1 DT_VERSION_NUMBER(1, 6, 1) 106 #define DT_VERS_1_6_2 DT_VERSION_NUMBER(1, 6, 2) 107 #define DT_VERS_1_6_3 DT_VERSION_NUMBER(1, 6, 3) 108 #define DT_VERS_1_7 DT_VERSION_NUMBER(1, 7, 0) 109 #define DT_VERS_1_7_1 DT_VERSION_NUMBER(1, 7, 1) 110 #define DT_VERS_1_8 DT_VERSION_NUMBER(1, 8, 0) 111 #define DT_VERS_1_8_1 DT_VERSION_NUMBER(1, 8, 1) 112 #define DT_VERS_1_9 DT_VERSION_NUMBER(1, 9, 0) 113 #define DT_VERS_1_9_1 DT_VERSION_NUMBER(1, 9, 1) 114 #define DT_VERS_1_10 DT_VERSION_NUMBER(1, 10, 0) 115 #define DT_VERS_LATEST DT_VERS_1_10 116 #define DT_VERS_STRING "Sun D 1.10" 117 118 const dt_version_t _dtrace_versions[] = { 119 DT_VERS_1_0, /* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */ 120 DT_VERS_1_1, /* D API 1.1.0 Solaris Express 6/05 */ 121 DT_VERS_1_2, /* D API 1.2.0 Solaris 10 Update 1 */ 122 DT_VERS_1_2_1, /* D API 1.2.1 Solaris Express 4/06 */ 123 DT_VERS_1_2_2, /* D API 1.2.2 Solaris Express 6/06 */ 124 DT_VERS_1_3, /* D API 1.3 Solaris Express 10/06 */ 125 DT_VERS_1_4, /* D API 1.4 Solaris Express 2/07 */ 126 DT_VERS_1_4_1, /* D API 1.4.1 Solaris Express 4/07 */ 127 DT_VERS_1_5, /* D API 1.5 Solaris Express 7/07 */ 128 DT_VERS_1_6, /* D API 1.6 */ 129 DT_VERS_1_6_1, /* D API 1.6.1 */ 130 DT_VERS_1_6_2, /* D API 1.6.2 */ 131 DT_VERS_1_6_3, /* D API 1.6.3 */ 132 DT_VERS_1_7, /* D API 1.7 */ 133 DT_VERS_1_7_1, /* D API 1.7.1 */ 134 DT_VERS_1_8, /* D API 1.8 */ 135 DT_VERS_1_8_1, /* D API 1.8.1 */ 136 DT_VERS_1_9, /* D API 1.9 */ 137 DT_VERS_1_9_1, /* D API 1.9.1 */ 138 DT_VERS_1_10, /* D API 1.10 */ 139 0 140 }; 141 142 /* 143 * Table of global identifiers. This is used to populate the global identifier 144 * hash when a new dtrace client open occurs. For more info see dt_ident.h. 145 * The global identifiers that represent functions use the dt_idops_func ops 146 * and specify the private data pointer as a prototype string which is parsed 147 * when the identifier is first encountered. These prototypes look like ANSI 148 * C function prototypes except that the special symbol "@" can be used as a 149 * wildcard to represent a single parameter of any type (i.e. any dt_node_t). 150 * The standard "..." notation can also be used to represent varargs. An empty 151 * parameter list is taken to mean void (that is, no arguments are permitted). 152 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional 153 * argument. 154 */ 155 static const dt_ident_t _dtrace_globals[] = { 156 { "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0, 157 &dt_idops_func, "void *(size_t)" }, 158 { "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0, 159 &dt_idops_type, "int64_t" }, 160 { "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0, 161 &dt_idops_type, "int64_t" }, 162 { "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0, 163 &dt_idops_type, "int64_t" }, 164 { "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0, 165 &dt_idops_type, "int64_t" }, 166 { "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0, 167 &dt_idops_type, "int64_t" }, 168 { "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0, 169 &dt_idops_type, "int64_t" }, 170 { "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0, 171 &dt_idops_type, "int64_t" }, 172 { "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0, 173 &dt_idops_type, "int64_t" }, 174 { "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0, 175 &dt_idops_type, "int64_t" }, 176 { "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0, 177 &dt_idops_type, "int64_t" }, 178 { "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0, 179 &dt_idops_args, NULL }, 180 { "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0, 181 &dt_idops_func, "void(@)" }, 182 { "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0, 183 &dt_idops_func, "string(const char *)" }, 184 { "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0, 185 &dt_idops_func, "void(void *, void *, size_t)" }, 186 { "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT, 187 DT_ATTR_STABCMN, DT_VERS_1_0, 188 &dt_idops_func, "void()" }, 189 { "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0, 190 &dt_idops_type, "uintptr_t" }, 191 { "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0, 192 &dt_idops_func, "void(int)" }, 193 { "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN, 194 DT_VERS_1_0, &dt_idops_func, "string(const char *)" }, 195 { "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0, 196 &dt_idops_func, "void(...)" }, 197 { "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0, 198 &dt_idops_func, "void(int)" }, 199 { "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0, 200 &dt_idops_func, "void *(uintptr_t, size_t)" }, 201 { "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR, 202 DT_ATTR_STABCMN, DT_VERS_1_0, 203 &dt_idops_func, "string(uintptr_t, [size_t])" }, 204 { "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN, 205 DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" }, 206 { "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0, 207 &dt_idops_func, "void(void *, uintptr_t, size_t)" }, 208 { "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR, 209 DT_ATTR_STABCMN, DT_VERS_1_0, 210 &dt_idops_func, "void(char *, uintptr_t, size_t)" }, 211 { "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0, 212 &dt_idops_func, "void()" }, 213 { "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD, 214 { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE, 215 DTRACE_CLASS_COMMON }, DT_VERS_1_0, 216 &dt_idops_type, "genunix`kthread_t *" }, 217 { "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME, 218 DT_ATTR_EVOLCMN, DT_VERS_1_0, 219 &dt_idops_func, "string(void *, int64_t)" }, 220 { "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN, 221 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 222 { "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0, 223 &dt_idops_func, "string(const char *)" }, 224 { "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0, 225 &dt_idops_func, "void(int)" }, 226 { "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0, 227 &dt_idops_type, "uint_t" }, 228 { "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0, 229 &dt_idops_type, "int" }, 230 { "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME, 231 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 232 { "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0, 233 &dt_idops_func, "void(int)" }, 234 { "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN, 235 DT_VERS_1_1, &dt_idops_func, "void(@, ...)" }, 236 { "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN, 237 DT_VERS_1_0, &dt_idops_func, "void()" }, 238 { "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 239 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 240 { "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR, 241 DT_ATTR_EVOLCMN, DT_VERS_1_0, 242 &dt_idops_func, "genunix`major_t(genunix`dev_t)" }, 243 { "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR, 244 DT_ATTR_EVOLCMN, DT_VERS_1_0, 245 &dt_idops_func, "genunix`minor_t(genunix`dev_t)" }, 246 { "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 247 &dt_idops_func, "uint32_t(uint32_t)" }, 248 { "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 249 &dt_idops_func, "uint64_t(uint64_t)" }, 250 { "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 251 &dt_idops_func, "uint16_t(uint16_t)" }, 252 { "getf", DT_IDENT_FUNC, 0, DIF_SUBR_GETF, DT_ATTR_STABCMN, DT_VERS_1_10, 253 &dt_idops_func, "file_t *(int)" }, 254 { "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0, 255 &dt_idops_type, "gid_t" }, 256 { "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0, 257 &dt_idops_type, "uint_t" }, 258 { "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 259 &dt_idops_func, "int(const char *, const char *, [int])" }, 260 { "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN, 261 DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" }, 262 { "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN, 263 DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" }, 264 { "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN, 265 DT_VERS_1_5, &dt_idops_func, "string(int, void *)" }, 266 { "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0, 267 &dt_idops_type, "uint_t" }, 268 { "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 269 &dt_idops_func, "stack(...)" }, 270 { "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0, 271 &dt_idops_func, "string(int64_t, [int])" }, 272 { "llquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LLQUANTIZE, DT_ATTR_STABCMN, 273 DT_VERS_1_7, &dt_idops_func, 274 "void(@, int32_t, int32_t, int32_t, int32_t, ...)" }, 275 { "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE, 276 DT_ATTR_STABCMN, DT_VERS_1_0, 277 &dt_idops_func, "void(@, int32_t, int32_t, ...)" }, 278 { "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0, 279 &dt_idops_func, "void(@)" }, 280 { "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0, 281 &dt_idops_func, "void(@)" }, 282 { "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN, 283 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 284 { "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE, 285 DT_ATTR_STABCMN, DT_VERS_1_0, 286 &dt_idops_func, "size_t(mblk_t *)" }, 287 { "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE, 288 DT_ATTR_STABCMN, DT_VERS_1_0, 289 &dt_idops_func, "size_t(mblk_t *)" }, 290 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 291 DT_ATTR_EVOLCMN, DT_VERS_1_0, 292 &dt_idops_func, "int(genunix`kmutex_t *)" }, 293 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 294 DT_ATTR_EVOLCMN, DT_VERS_1_0, 295 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" }, 296 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 297 DT_ATTR_EVOLCMN, DT_VERS_1_0, 298 &dt_idops_func, "int(genunix`kmutex_t *)" }, 299 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 300 DT_ATTR_EVOLCMN, DT_VERS_1_0, 301 &dt_idops_func, "int(genunix`kmutex_t *)" }, 302 { "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 303 &dt_idops_func, "uint32_t(uint32_t)" }, 304 { "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 305 &dt_idops_func, "uint64_t(uint64_t)" }, 306 { "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 307 &dt_idops_func, "uint16_t(uint16_t)" }, 308 { "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN, 309 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 310 { "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0, 311 &dt_idops_func, "void()" }, 312 { "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0, 313 &dt_idops_type, "pid_t" }, 314 { "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0, 315 &dt_idops_type, "pid_t" }, 316 { "print", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINT, DT_ATTR_STABCMN, DT_VERS_1_9, 317 &dt_idops_func, "void(@)" }, 318 { "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0, 319 &dt_idops_func, "void(@, ...)" }, 320 { "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0, 321 &dt_idops_func, "void(@, ...)" }, 322 { "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC, 323 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 324 { "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD, 325 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 326 { "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME, 327 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 328 { "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV, 329 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 330 { "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF, 331 DT_ATTR_STABCMN, DT_VERS_1_0, 332 &dt_idops_func, "int(pid_t)" }, 333 { "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE, 334 DT_ATTR_STABCMN, DT_VERS_1_0, 335 &dt_idops_func, "void(@, ...)" }, 336 { "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0, 337 &dt_idops_func, "void(int)" }, 338 { "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0, 339 &dt_idops_func, "int()" }, 340 { "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 341 &dt_idops_func, "int(const char *, const char *, [int])" }, 342 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 343 DT_ATTR_EVOLCMN, DT_VERS_1_0, 344 &dt_idops_func, "int(genunix`krwlock_t *)" }, 345 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 346 DT_ATTR_EVOLCMN, DT_VERS_1_0, 347 &dt_idops_func, "int(genunix`krwlock_t *)" }, 348 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 349 DT_ATTR_EVOLCMN, DT_VERS_1_0, 350 &dt_idops_func, "int(genunix`krwlock_t *)" }, 351 { "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 352 &dt_idops_type, "void" }, 353 { "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN, 354 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" }, 355 { "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE, 356 DT_ATTR_STABCMN, DT_VERS_1_0, 357 &dt_idops_func, "void(int)" }, 358 { "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION, 359 DT_ATTR_STABCMN, DT_VERS_1_0, 360 &dt_idops_func, "int()" }, 361 { "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0, 362 &dt_idops_func, "stack(...)" }, 363 { "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH, 364 DT_ATTR_STABCMN, DT_VERS_1_0, 365 &dt_idops_type, "uint32_t" }, 366 { "stddev", DT_IDENT_AGGFUNC, 0, DTRACEAGG_STDDEV, DT_ATTR_STABCMN, 367 DT_VERS_1_6, &dt_idops_func, "void(@)" }, 368 { "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0, 369 &dt_idops_func, "void()" }, 370 { "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 371 &dt_idops_func, "string(const char *, char)" }, 372 { "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0, 373 &dt_idops_func, "size_t(const char *)" }, 374 { "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0, 375 &dt_idops_func, "string(const char *, const char *)" }, 376 { "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 377 &dt_idops_func, "string(const char *, char)" }, 378 { "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 379 &dt_idops_func, "string(const char *, const char *)" }, 380 { "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1, 381 &dt_idops_func, "string(const char *, const char *)" }, 382 { "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 383 &dt_idops_func, "string(const char *, int, [int])" }, 384 { "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0, 385 &dt_idops_func, "void(@)" }, 386 { "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 387 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 388 { "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0, 389 &dt_idops_func, "void(@, ...)" }, 390 { "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 391 &dt_idops_type, "void" }, 392 { "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0, 393 &dt_idops_type, "id_t" }, 394 { "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP, 395 DT_ATTR_STABCMN, DT_VERS_1_0, 396 &dt_idops_type, "uint64_t" }, 397 { "tolower", DT_IDENT_FUNC, 0, DIF_SUBR_TOLOWER, DT_ATTR_STABCMN, DT_VERS_1_8, 398 &dt_idops_func, "string(const char *)" }, 399 { "toupper", DT_IDENT_FUNC, 0, DIF_SUBR_TOUPPER, DT_ATTR_STABCMN, DT_VERS_1_8, 400 &dt_idops_func, "string(const char *)" }, 401 { "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0, 402 &dt_idops_func, "void(@)" }, 403 { "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM, 404 DT_ATTR_STABCMN, DT_VERS_1_0, 405 &dt_idops_func, "void(@, size_t, ...)" }, 406 { "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN, 407 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 408 { "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN, 409 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 410 { "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN, 411 DT_VERS_1_2, &dt_idops_type, "uint64_t" }, 412 { "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 413 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 414 { "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0, 415 &dt_idops_type, "uid_t" }, 416 { "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN, 417 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 418 { "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0, 419 &dt_idops_regs, NULL }, 420 { "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 421 &dt_idops_func, "stack(...)" }, 422 { "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH, 423 DT_ATTR_STABCMN, DT_VERS_1_2, 424 &dt_idops_type, "uint32_t" }, 425 { "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 426 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 427 { "vmregs", DT_IDENT_ARRAY, 0, DIF_VAR_VMREGS, DT_ATTR_STABCMN, DT_VERS_1_7, 428 &dt_idops_regs, NULL }, 429 { "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP, 430 DT_ATTR_STABCMN, DT_VERS_1_0, 431 &dt_idops_type, "uint64_t" }, 432 { "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP, 433 DT_ATTR_STABCMN, DT_VERS_1_0, 434 &dt_idops_type, "int64_t" }, 435 { "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME, 436 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 437 { NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL } 438 }; 439 440 /* 441 * Tables of ILP32 intrinsic integer and floating-point type templates to use 442 * to populate the dynamic "C" CTF type container. 443 */ 444 static const dt_intrinsic_t _dtrace_intrinsics_32[] = { 445 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 446 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 447 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 448 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 449 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 450 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 451 { "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 452 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 453 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 454 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 455 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 456 { "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 457 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 458 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 459 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 460 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 461 { "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER }, 462 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 463 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 464 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 465 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 466 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 467 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 468 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 469 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 470 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 471 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 472 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 473 { NULL, { 0, 0, 0 }, 0 } 474 }; 475 476 /* 477 * Tables of LP64 intrinsic integer and floating-point type templates to use 478 * to populate the dynamic "C" CTF type container. 479 */ 480 static const dt_intrinsic_t _dtrace_intrinsics_64[] = { 481 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 482 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 483 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 484 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 485 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 486 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 487 { "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 488 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 489 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 490 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 491 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 492 { "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 493 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 494 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 495 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 496 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 497 { "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER }, 498 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 499 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 500 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 501 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 502 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 503 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 504 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 505 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 506 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 507 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 508 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 509 { NULL, { 0, 0, 0 }, 0 } 510 }; 511 512 /* 513 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container. 514 * These aliases ensure that D definitions can use typical <sys/types.h> names. 515 */ 516 static const dt_typedef_t _dtrace_typedefs_32[] = { 517 { "char", "int8_t" }, 518 { "short", "int16_t" }, 519 { "int", "int32_t" }, 520 { "long long", "int64_t" }, 521 { "int", "intptr_t" }, 522 { "int", "ssize_t" }, 523 { "unsigned char", "uint8_t" }, 524 { "unsigned short", "uint16_t" }, 525 { "unsigned", "uint32_t" }, 526 { "unsigned long long", "uint64_t" }, 527 { "unsigned char", "uchar_t" }, 528 { "unsigned short", "ushort_t" }, 529 { "unsigned", "uint_t" }, 530 { "unsigned long", "ulong_t" }, 531 { "unsigned long long", "u_longlong_t" }, 532 { "int", "ptrdiff_t" }, 533 { "unsigned", "uintptr_t" }, 534 { "unsigned", "size_t" }, 535 { "long", "id_t" }, 536 { "long", "pid_t" }, 537 { NULL, NULL } 538 }; 539 540 /* 541 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container. 542 * These aliases ensure that D definitions can use typical <sys/types.h> names. 543 */ 544 static const dt_typedef_t _dtrace_typedefs_64[] = { 545 { "char", "int8_t" }, 546 { "short", "int16_t" }, 547 { "int", "int32_t" }, 548 { "long", "int64_t" }, 549 { "long", "intptr_t" }, 550 { "long", "ssize_t" }, 551 { "unsigned char", "uint8_t" }, 552 { "unsigned short", "uint16_t" }, 553 { "unsigned", "uint32_t" }, 554 { "unsigned long", "uint64_t" }, 555 { "unsigned char", "uchar_t" }, 556 { "unsigned short", "ushort_t" }, 557 { "unsigned", "uint_t" }, 558 { "unsigned long", "ulong_t" }, 559 { "unsigned long long", "u_longlong_t" }, 560 { "long", "ptrdiff_t" }, 561 { "unsigned long", "uintptr_t" }, 562 { "unsigned long", "size_t" }, 563 { "int", "id_t" }, 564 { "int", "pid_t" }, 565 { NULL, NULL } 566 }; 567 568 /* 569 * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[] 570 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 571 */ 572 static const dt_intdesc_t _dtrace_ints_32[] = { 573 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 574 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 575 { "long", NULL, CTF_ERR, 0x7fffffffULL }, 576 { "unsigned long", NULL, CTF_ERR, 0xffffffffULL }, 577 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 578 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 579 }; 580 581 /* 582 * Tables of LP64 integer type templates used to populate the dtp->dt_ints[] 583 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 584 */ 585 static const dt_intdesc_t _dtrace_ints_64[] = { 586 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 587 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 588 { "long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 589 { "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL }, 590 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 591 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 592 }; 593 594 /* 595 * Table of macro variable templates used to populate the macro identifier hash 596 * when a new dtrace client open occurs. Values are set by dtrace_update(). 597 */ 598 static const dt_ident_t _dtrace_macros[] = { 599 { "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 600 { "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 601 { "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 602 { "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 603 { "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 604 { "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 605 { "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 606 { "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 607 { "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 608 { "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 609 { "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 610 { NULL, 0, 0, 0, { 0, 0, 0 }, 0 } 611 }; 612 613 /* 614 * Hard-wired definition string to be compiled and cached every time a new 615 * DTrace library handle is initialized. This string should only be used to 616 * contain definitions that should be present regardless of DTRACE_O_NOLIBS. 617 */ 618 static const char _dtrace_hardwire[] = "\ 619 inline long NULL = 0; \n\ 620 #pragma D binding \"1.0\" NULL\n\ 621 "; 622 623 /* 624 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV. 625 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel. 626 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are 627 * relying on the fact that when running dtrace(1M), isaexec will invoke the 628 * binary with the same bitness as the kernel, which is what we want by default 629 * when generating our DIF. The user can override the choice using oflags. 630 */ 631 static const dtrace_conf_t _dtrace_conf = { 632 DIF_VERSION, /* dtc_difversion */ 633 DIF_DIR_NREGS, /* dtc_difintregs */ 634 DIF_DTR_NREGS, /* dtc_diftupregs */ 635 CTF_MODEL_NATIVE /* dtc_ctfmodel */ 636 }; 637 638 const dtrace_attribute_t _dtrace_maxattr = { 639 DTRACE_STABILITY_MAX, 640 DTRACE_STABILITY_MAX, 641 DTRACE_CLASS_MAX 642 }; 643 644 const dtrace_attribute_t _dtrace_defattr = { 645 DTRACE_STABILITY_STABLE, 646 DTRACE_STABILITY_STABLE, 647 DTRACE_CLASS_COMMON 648 }; 649 650 const dtrace_attribute_t _dtrace_symattr = { 651 DTRACE_STABILITY_PRIVATE, 652 DTRACE_STABILITY_PRIVATE, 653 DTRACE_CLASS_UNKNOWN 654 }; 655 656 const dtrace_attribute_t _dtrace_typattr = { 657 DTRACE_STABILITY_PRIVATE, 658 DTRACE_STABILITY_PRIVATE, 659 DTRACE_CLASS_UNKNOWN 660 }; 661 662 const dtrace_attribute_t _dtrace_prvattr = { 663 DTRACE_STABILITY_PRIVATE, 664 DTRACE_STABILITY_PRIVATE, 665 DTRACE_CLASS_UNKNOWN 666 }; 667 668 const dtrace_pattr_t _dtrace_prvdesc = { 669 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 670 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 671 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 672 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 673 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 674 }; 675 676 const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */ 677 const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */ 678 679 const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */ 680 const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */ 681 682 int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */ 683 int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */ 684 uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */ 685 uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */ 686 uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */ 687 uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */ 688 size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */ 689 int _dtrace_argmax = 32; /* default maximum number of probe arguments */ 690 691 int _dtrace_debug = 0; /* debug messages enabled (off) */ 692 const char *const _dtrace_version = DT_VERS_STRING; /* API version string */ 693 int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */ 694 695 typedef struct dt_fdlist { 696 int *df_fds; /* array of provider driver file descriptors */ 697 uint_t df_ents; /* number of valid elements in df_fds[] */ 698 uint_t df_size; /* size of df_fds[] */ 699 } dt_fdlist_t; 700 701 #pragma init(_dtrace_init) 702 void 703 _dtrace_init(void) 704 { 705 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL; 706 707 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) { 708 if (rd_init(_dtrace_rdvers) == RD_OK) 709 break; 710 } 711 } 712 713 static dtrace_hdl_t * 714 set_open_errno(dtrace_hdl_t *dtp, int *errp, int err) 715 { 716 if (dtp != NULL) 717 dtrace_close(dtp); 718 if (errp != NULL) 719 *errp = err; 720 return (NULL); 721 } 722 723 static void 724 dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp) 725 { 726 dt_provmod_t *prov; 727 char path[PATH_MAX]; 728 struct dirent *dp, *ep; 729 DIR *dirp; 730 int fd; 731 732 if ((dirp = opendir(_dtrace_provdir)) == NULL) 733 return; /* failed to open directory; just skip it */ 734 735 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1); 736 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1); 737 738 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) { 739 if (dp->d_name[0] == '.') 740 continue; /* skip "." and ".." */ 741 742 if (dfp->df_ents == dfp->df_size) { 743 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 744 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 745 746 if (fds == NULL) 747 break; /* skip the rest of this directory */ 748 749 dfp->df_fds = fds; 750 dfp->df_size = size; 751 } 752 753 (void) snprintf(path, sizeof (path), "%s/%s", 754 _dtrace_provdir, dp->d_name); 755 756 if ((fd = open(path, O_RDONLY)) == -1) 757 continue; /* failed to open driver; just skip it */ 758 759 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 760 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) { 761 free(prov); 762 (void) close(fd); 763 break; 764 } 765 766 (void) strcpy(prov->dp_name, dp->d_name); 767 prov->dp_next = *provmod; 768 *provmod = prov; 769 770 dt_dprintf("opened provider %s\n", dp->d_name); 771 dfp->df_fds[dfp->df_ents++] = fd; 772 } 773 774 (void) closedir(dirp); 775 } 776 777 static void 778 dt_provmod_destroy(dt_provmod_t **provmod) 779 { 780 dt_provmod_t *next, *current; 781 782 for (current = *provmod; current != NULL; current = next) { 783 next = current->dp_next; 784 free(current->dp_name); 785 free(current); 786 } 787 788 *provmod = NULL; 789 } 790 791 static const char * 792 dt_get_sysinfo(int cmd, char *buf, size_t len) 793 { 794 ssize_t rv = sysinfo(cmd, buf, len); 795 char *p = buf; 796 797 if (rv < 0 || rv > len) 798 (void) snprintf(buf, len, "%s", "Unknown"); 799 800 while ((p = strchr(p, '.')) != NULL) 801 *p++ = '_'; 802 803 return (buf); 804 } 805 806 static dtrace_hdl_t * 807 dt_vopen(int version, int flags, int *errp, 808 const dtrace_vector_t *vector, void *arg) 809 { 810 dtrace_hdl_t *dtp = NULL; 811 int dtfd = -1, ftfd = -1, fterr = 0; 812 dtrace_prog_t *pgp; 813 dt_module_t *dmp; 814 dt_provmod_t *provmod = NULL; 815 int i, err; 816 struct rlimit rl; 817 818 const dt_intrinsic_t *dinp; 819 const dt_typedef_t *dtyp; 820 const dt_ident_t *idp; 821 822 dtrace_typeinfo_t dtt; 823 ctf_funcinfo_t ctc; 824 ctf_arinfo_t ctr; 825 826 dt_fdlist_t df = { NULL, 0, 0 }; 827 828 char isadef[32], utsdef[32]; 829 char s1[64], s2[64]; 830 831 if (version <= 0) 832 return (set_open_errno(dtp, errp, EINVAL)); 833 834 if (version > DTRACE_VERSION) 835 return (set_open_errno(dtp, errp, EDT_VERSION)); 836 837 if (version < DTRACE_VERSION) { 838 /* 839 * Currently, increasing the library version number is used to 840 * denote a binary incompatible change. That is, a consumer 841 * of the library cannot run on a version of the library with 842 * a higher DTRACE_VERSION number than the consumer compiled 843 * against. Once the library API has been committed to, 844 * backwards binary compatibility will be required; at that 845 * time, this check should change to return EDT_OVERSION only 846 * if the specified version number is less than the version 847 * number at the time of interface commitment. 848 */ 849 return (set_open_errno(dtp, errp, EDT_OVERSION)); 850 } 851 852 if (flags & ~DTRACE_O_MASK) 853 return (set_open_errno(dtp, errp, EINVAL)); 854 855 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32)) 856 return (set_open_errno(dtp, errp, EINVAL)); 857 858 if (vector == NULL && arg != NULL) 859 return (set_open_errno(dtp, errp, EINVAL)); 860 861 if (elf_version(EV_CURRENT) == EV_NONE) 862 return (set_open_errno(dtp, errp, EDT_ELFVERSION)); 863 864 if (vector != NULL || (flags & DTRACE_O_NODEV)) 865 goto alloc; /* do not attempt to open dtrace device */ 866 867 /* 868 * Before we get going, crank our limit on file descriptors up to the 869 * hard limit. This is to allow for the fact that libproc keeps file 870 * descriptors to objects open for the lifetime of the proc handle; 871 * without raising our hard limit, we would have an acceptably small 872 * bound on the number of processes that we could concurrently 873 * instrument with the pid provider. 874 */ 875 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) { 876 rl.rlim_cur = rl.rlim_max; 877 (void) setrlimit(RLIMIT_NOFILE, &rl); 878 } 879 880 /* 881 * Get the device path of each of the providers. We hold them open 882 * in the df.df_fds list until we open the DTrace driver itself, 883 * allowing us to see all of the probes provided on this system. Once 884 * we have the DTrace driver open, we can safely close all the providers 885 * now that they have registered with the framework. 886 */ 887 dt_provmod_open(&provmod, &df); 888 889 dtfd = open("/dev/dtrace/dtrace", O_RDWR); 890 err = errno; /* save errno from opening dtfd */ 891 892 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR); 893 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */ 894 895 while (df.df_ents-- != 0) 896 (void) close(df.df_fds[df.df_ents]); 897 898 free(df.df_fds); 899 900 /* 901 * If we failed to open the dtrace device, fail dtrace_open(). 902 * We convert some kernel errnos to custom libdtrace errnos to 903 * improve the resulting message from the usual strerror(). 904 */ 905 if (dtfd == -1) { 906 dt_provmod_destroy(&provmod); 907 switch (err) { 908 case ENOENT: 909 err = EDT_NOENT; 910 break; 911 case EBUSY: 912 err = EDT_BUSY; 913 break; 914 case EACCES: 915 err = EDT_ACCESS; 916 break; 917 } 918 return (set_open_errno(dtp, errp, err)); 919 } 920 921 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC); 922 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC); 923 924 alloc: 925 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL) 926 return (set_open_errno(dtp, errp, EDT_NOMEM)); 927 928 bzero(dtp, sizeof (dtrace_hdl_t)); 929 dtp->dt_oflags = flags; 930 dtp->dt_prcmode = DT_PROC_STOP_PREINIT; 931 dtp->dt_linkmode = DT_LINK_KERNEL; 932 dtp->dt_linktype = DT_LTYP_ELF; 933 dtp->dt_xlatemode = DT_XL_STATIC; 934 dtp->dt_stdcmode = DT_STDC_XA; 935 dtp->dt_version = version; 936 dtp->dt_fd = dtfd; 937 dtp->dt_ftfd = ftfd; 938 dtp->dt_fterr = fterr; 939 dtp->dt_cdefs_fd = -1; 940 dtp->dt_ddefs_fd = -1; 941 dtp->dt_stdout_fd = -1; 942 dtp->dt_modbuckets = _dtrace_strbuckets; 943 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *)); 944 dtp->dt_provbuckets = _dtrace_strbuckets; 945 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *)); 946 dt_proc_init(dtp); 947 dtp->dt_vmax = DT_VERS_LATEST; 948 dtp->dt_cpp_path = strdup(_dtrace_defcpp); 949 dtp->dt_cpp_argv = malloc(sizeof (char *)); 950 dtp->dt_cpp_argc = 1; 951 dtp->dt_cpp_args = 1; 952 dtp->dt_ld_path = strdup(_dtrace_defld); 953 dtp->dt_provmod = provmod; 954 dtp->dt_vector = vector; 955 dtp->dt_varg = arg; 956 dt_dof_init(dtp); 957 (void) uname(&dtp->dt_uts); 958 959 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL || 960 dtp->dt_procs == NULL || dtp->dt_proc_env == NULL || 961 dtp->dt_ld_path == NULL || dtp->dt_cpp_path == NULL || 962 dtp->dt_cpp_argv == NULL) 963 return (set_open_errno(dtp, errp, EDT_NOMEM)); 964 965 for (i = 0; i < DTRACEOPT_MAX; i++) 966 dtp->dt_options[i] = DTRACEOPT_UNSET; 967 968 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path); 969 970 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u", 971 (uint_t)(sizeof (void *) * NBBY)); 972 973 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s", 974 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)), 975 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2))); 976 977 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL || 978 dt_cpp_add_arg(dtp, "-D__unix") == NULL || 979 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL || 980 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL || 981 dt_cpp_add_arg(dtp, isadef) == NULL || 982 dt_cpp_add_arg(dtp, utsdef) == NULL) 983 return (set_open_errno(dtp, errp, EDT_NOMEM)); 984 985 if (flags & DTRACE_O_NODEV) 986 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf)); 987 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0) 988 return (set_open_errno(dtp, errp, errno)); 989 990 if (flags & DTRACE_O_LP64) 991 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64; 992 else if (flags & DTRACE_O_ILP32) 993 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32; 994 995 #ifdef __sparc 996 /* 997 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h> 998 * and __sparcv9 is defined if we are doing a 64-bit compile. 999 */ 1000 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL) 1001 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1002 1003 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 && 1004 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL) 1005 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1006 #endif 1007 1008 #ifdef __x86 1009 /* 1010 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit 1011 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC, 1012 * they are defined exclusive of one another (see PSARC 2004/619). 1013 */ 1014 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 1015 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL) 1016 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1017 } else { 1018 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL) 1019 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1020 } 1021 #endif 1022 1023 if (dtp->dt_conf.dtc_difversion < DIF_VERSION) 1024 return (set_open_errno(dtp, errp, EDT_DIFVERS)); 1025 1026 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) 1027 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32)); 1028 else 1029 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64)); 1030 1031 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX); 1032 dtp->dt_aggs = dt_idhash_create("aggregation", NULL, 1033 DTRACE_AGGVARIDNONE + 1, UINT_MAX); 1034 1035 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals, 1036 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1037 1038 dtp->dt_tls = dt_idhash_create("thread local", NULL, 1039 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1040 1041 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL || 1042 dtp->dt_globals == NULL || dtp->dt_tls == NULL) 1043 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1044 1045 /* 1046 * Populate the dt_macros identifier hash table by hand: we can't use 1047 * the dt_idhash_populate() mechanism because we're not yet compiling 1048 * and dtrace_update() needs to immediately reference these idents. 1049 */ 1050 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) { 1051 if (dt_idhash_insert(dtp->dt_macros, idp->di_name, 1052 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr, 1053 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw, 1054 idp->di_iarg, 0) == NULL) 1055 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1056 } 1057 1058 /* 1059 * Update the module list using /system/object and load the values for 1060 * the macro variable definitions according to the current process. 1061 */ 1062 dtrace_update(dtp); 1063 1064 /* 1065 * Select the intrinsics and typedefs we want based on the data model. 1066 * The intrinsics are under "C". The typedefs are added under "D". 1067 */ 1068 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) { 1069 dinp = _dtrace_intrinsics_32; 1070 dtyp = _dtrace_typedefs_32; 1071 } else { 1072 dinp = _dtrace_intrinsics_64; 1073 dtyp = _dtrace_typedefs_64; 1074 } 1075 1076 /* 1077 * Create a dynamic CTF container under the "C" scope for intrinsic 1078 * types and types defined in ANSI-C header files that are included. 1079 */ 1080 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL) 1081 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1082 1083 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1084 return (set_open_errno(dtp, errp, EDT_CTF)); 1085 1086 dt_dprintf("created CTF container for %s (%p)\n", 1087 dmp->dm_name, (void *)dmp->dm_ctfp); 1088 1089 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1090 ctf_setspecific(dmp->dm_ctfp, dmp); 1091 1092 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1093 dmp->dm_modid = -1; /* no module ID */ 1094 1095 /* 1096 * Fill the dynamic "C" CTF container with all of the intrinsic 1097 * integer and floating-point types appropriate for this data model. 1098 */ 1099 for (; dinp->din_name != NULL; dinp++) { 1100 if (dinp->din_kind == CTF_K_INTEGER) { 1101 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT, 1102 dinp->din_name, &dinp->din_data); 1103 } else { 1104 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT, 1105 dinp->din_name, &dinp->din_data); 1106 } 1107 1108 if (err == CTF_ERR) { 1109 dt_dprintf("failed to add %s to C container: %s\n", 1110 dinp->din_name, ctf_errmsg( 1111 ctf_errno(dmp->dm_ctfp))); 1112 return (set_open_errno(dtp, errp, EDT_CTF)); 1113 } 1114 } 1115 1116 if (ctf_update(dmp->dm_ctfp) != 0) { 1117 dt_dprintf("failed to update C container: %s\n", 1118 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1119 return (set_open_errno(dtp, errp, EDT_CTF)); 1120 } 1121 1122 /* 1123 * Add intrinsic pointer types that are needed to initialize printf 1124 * format dictionary types (see table in dt_printf.c). 1125 */ 1126 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1127 ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1128 1129 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1130 ctf_lookup_by_name(dmp->dm_ctfp, "char")); 1131 1132 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1133 ctf_lookup_by_name(dmp->dm_ctfp, "int")); 1134 1135 if (ctf_update(dmp->dm_ctfp) != 0) { 1136 dt_dprintf("failed to update C container: %s\n", 1137 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1138 return (set_open_errno(dtp, errp, EDT_CTF)); 1139 } 1140 1141 /* 1142 * Create a dynamic CTF container under the "D" scope for types that 1143 * are defined by the D program itself or on-the-fly by the D compiler. 1144 * The "D" CTF container is a child of the "C" CTF container. 1145 */ 1146 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL) 1147 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1148 1149 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1150 return (set_open_errno(dtp, errp, EDT_CTF)); 1151 1152 dt_dprintf("created CTF container for %s (%p)\n", 1153 dmp->dm_name, (void *)dmp->dm_ctfp); 1154 1155 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1156 ctf_setspecific(dmp->dm_ctfp, dmp); 1157 1158 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1159 dmp->dm_modid = -1; /* no module ID */ 1160 1161 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) { 1162 dt_dprintf("failed to import D parent container: %s\n", 1163 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1164 return (set_open_errno(dtp, errp, EDT_CTF)); 1165 } 1166 1167 /* 1168 * Fill the dynamic "D" CTF container with all of the built-in typedefs 1169 * that we need to use for our D variable and function definitions. 1170 * This ensures that basic inttypes.h names are always available to us. 1171 */ 1172 for (; dtyp->dty_src != NULL; dtyp++) { 1173 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1174 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp, 1175 dtyp->dty_src)) == CTF_ERR) { 1176 dt_dprintf("failed to add typedef %s %s to D " 1177 "container: %s", dtyp->dty_src, dtyp->dty_dst, 1178 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1179 return (set_open_errno(dtp, errp, EDT_CTF)); 1180 } 1181 } 1182 1183 /* 1184 * Insert a CTF ID corresponding to a pointer to a type of kind 1185 * CTF_K_FUNCTION we can use in the compiler for function pointers. 1186 * CTF treats all function pointers as "int (*)()" so we only need one. 1187 */ 1188 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int"); 1189 ctc.ctc_argc = 0; 1190 ctc.ctc_flags = 0; 1191 1192 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp, 1193 CTF_ADD_ROOT, &ctc, NULL); 1194 1195 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp, 1196 CTF_ADD_ROOT, dtp->dt_type_func); 1197 1198 /* 1199 * We also insert CTF definitions for the special D intrinsic types 1200 * string and <DYN> into the D container. The string type is added 1201 * as a typedef of char[n]. The <DYN> type is an alias for void. 1202 * We compare types to these special CTF ids throughout the compiler. 1203 */ 1204 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char"); 1205 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long"); 1206 ctr.ctr_nelems = _dtrace_strsize; 1207 1208 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1209 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr)); 1210 1211 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1212 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1213 1214 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1215 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1216 1217 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1218 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1219 1220 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1221 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1222 1223 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR || 1224 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR || 1225 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR || 1226 dtp->dt_type_usymaddr == CTF_ERR) { 1227 dt_dprintf("failed to add intrinsic to D container: %s\n", 1228 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1229 return (set_open_errno(dtp, errp, EDT_CTF)); 1230 } 1231 1232 if (ctf_update(dmp->dm_ctfp) != 0) { 1233 dt_dprintf("failed update D container: %s\n", 1234 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1235 return (set_open_errno(dtp, errp, EDT_CTF)); 1236 } 1237 1238 /* 1239 * Initialize the integer description table used to convert integer 1240 * constants to the appropriate types. Refer to the comments above 1241 * dt_node_int() for a complete description of how this table is used. 1242 */ 1243 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) { 1244 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY, 1245 dtp->dt_ints[i].did_name, &dtt) != 0) { 1246 dt_dprintf("failed to lookup integer type %s: %s\n", 1247 dtp->dt_ints[i].did_name, 1248 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1249 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1250 } 1251 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp; 1252 dtp->dt_ints[i].did_type = dtt.dtt_type; 1253 } 1254 1255 /* 1256 * Now that we've created the "C" and "D" containers, move them to the 1257 * start of the module list so that these types and symbols are found 1258 * first (for stability) when iterating through the module list. 1259 */ 1260 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs); 1261 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs); 1262 1263 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs); 1264 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs); 1265 1266 if (dt_pfdict_create(dtp) == -1) 1267 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1268 1269 /* 1270 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default 1271 * because without /dev/dtrace open, we will not be able to load the 1272 * names and attributes of any providers or probes from the kernel. 1273 */ 1274 if (flags & DTRACE_O_NODEV) 1275 dtp->dt_cflags |= DTRACE_C_ZDEFS; 1276 1277 /* 1278 * Load hard-wired inlines into the definition cache by calling the 1279 * compiler on the raw definition string defined above. 1280 */ 1281 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire, 1282 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) { 1283 dt_dprintf("failed to load hard-wired definitions: %s\n", 1284 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1285 return (set_open_errno(dtp, errp, EDT_HARDWIRE)); 1286 } 1287 1288 dt_program_destroy(dtp, pgp); 1289 1290 /* 1291 * Set up the default DTrace library path. Once set, the next call to 1292 * dt_compile() will compile all the libraries. We intentionally defer 1293 * library processing to improve overhead for clients that don't ever 1294 * compile, and to provide better error reporting (because the full 1295 * reporting of compiler errors requires dtrace_open() to succeed). 1296 */ 1297 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0) 1298 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1299 1300 return (dtp); 1301 } 1302 1303 dtrace_hdl_t * 1304 dtrace_open(int version, int flags, int *errp) 1305 { 1306 return (dt_vopen(version, flags, errp, NULL, NULL)); 1307 } 1308 1309 dtrace_hdl_t * 1310 dtrace_vopen(int version, int flags, int *errp, 1311 const dtrace_vector_t *vector, void *arg) 1312 { 1313 return (dt_vopen(version, flags, errp, vector, arg)); 1314 } 1315 1316 void 1317 dtrace_close(dtrace_hdl_t *dtp) 1318 { 1319 dt_ident_t *idp, *ndp; 1320 dt_module_t *dmp; 1321 dt_provider_t *pvp; 1322 dtrace_prog_t *pgp; 1323 dt_xlator_t *dxp; 1324 dt_dirpath_t *dirp; 1325 int i; 1326 1327 if (dtp->dt_procs != NULL) 1328 dt_proc_fini(dtp); 1329 1330 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL) 1331 dt_program_destroy(dtp, pgp); 1332 1333 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL) 1334 dt_xlator_destroy(dtp, dxp); 1335 1336 dt_free(dtp, dtp->dt_xlatormap); 1337 1338 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) { 1339 ndp = idp->di_next; 1340 dt_ident_destroy(idp); 1341 } 1342 1343 if (dtp->dt_macros != NULL) 1344 dt_idhash_destroy(dtp->dt_macros); 1345 if (dtp->dt_aggs != NULL) 1346 dt_idhash_destroy(dtp->dt_aggs); 1347 if (dtp->dt_globals != NULL) 1348 dt_idhash_destroy(dtp->dt_globals); 1349 if (dtp->dt_tls != NULL) 1350 dt_idhash_destroy(dtp->dt_tls); 1351 1352 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL) 1353 dt_module_destroy(dtp, dmp); 1354 1355 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL) 1356 dt_provider_destroy(dtp, pvp); 1357 1358 if (dtp->dt_fd != -1) 1359 (void) close(dtp->dt_fd); 1360 if (dtp->dt_ftfd != -1) 1361 (void) close(dtp->dt_ftfd); 1362 if (dtp->dt_cdefs_fd != -1) 1363 (void) close(dtp->dt_cdefs_fd); 1364 if (dtp->dt_ddefs_fd != -1) 1365 (void) close(dtp->dt_ddefs_fd); 1366 if (dtp->dt_stdout_fd != -1) 1367 (void) close(dtp->dt_stdout_fd); 1368 1369 dt_epid_destroy(dtp); 1370 dt_aggid_destroy(dtp); 1371 dt_format_destroy(dtp); 1372 dt_strdata_destroy(dtp); 1373 dt_buffered_destroy(dtp); 1374 dt_aggregate_destroy(dtp); 1375 dt_pfdict_destroy(dtp); 1376 dt_provmod_destroy(&dtp->dt_provmod); 1377 dt_dof_fini(dtp); 1378 1379 for (i = 1; i < dtp->dt_cpp_argc; i++) 1380 free(dtp->dt_cpp_argv[i]); 1381 1382 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) { 1383 dt_list_delete(&dtp->dt_lib_path, dirp); 1384 free(dirp->dir_path); 1385 free(dirp); 1386 } 1387 1388 free(dtp->dt_cpp_argv); 1389 free(dtp->dt_cpp_path); 1390 free(dtp->dt_ld_path); 1391 1392 free(dtp->dt_mods); 1393 free(dtp->dt_provs); 1394 free(dtp); 1395 } 1396 1397 int 1398 dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods) 1399 { 1400 dt_provmod_t *prov; 1401 int i = 0; 1402 1403 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) { 1404 if (i < nmods) 1405 mods[i] = prov->dp_name; 1406 } 1407 1408 return (i); 1409 } 1410 1411 int 1412 dtrace_ctlfd(dtrace_hdl_t *dtp) 1413 { 1414 return (dtp->dt_fd); 1415 } 1416