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 */ 26 27 #include <sys/types.h> 28 #include <sys/modctl.h> 29 #include <sys/systeminfo.h> 30 #include <sys/resource.h> 31 32 #include <libelf.h> 33 #include <strings.h> 34 #include <alloca.h> 35 #include <limits.h> 36 #include <unistd.h> 37 #include <stdlib.h> 38 #include <stdio.h> 39 #include <fcntl.h> 40 #include <errno.h> 41 #include <assert.h> 42 43 #define _POSIX_PTHREAD_SEMANTICS 44 #include <dirent.h> 45 #undef _POSIX_PTHREAD_SEMANTICS 46 47 #include <dt_impl.h> 48 #include <dt_program.h> 49 #include <dt_module.h> 50 #include <dt_printf.h> 51 #include <dt_string.h> 52 #include <dt_provider.h> 53 54 /* 55 * Stability and versioning definitions. These #defines are used in the tables 56 * of identifiers below to fill in the attribute and version fields associated 57 * with each identifier. The DT_ATTR_* macros are a convenience to permit more 58 * concise declarations of common attributes such as Stable/Stable/Common. The 59 * DT_VERS_* macros declare the encoded integer values of all versions used so 60 * far. DT_VERS_LATEST must correspond to the latest version value among all 61 * versions exported by the D compiler. DT_VERS_STRING must be an ASCII string 62 * that contains DT_VERS_LATEST within it along with any suffixes (e.g. Beta). 63 * You must update DT_VERS_LATEST and DT_VERS_STRING when adding a new version, 64 * and then add the new version to the _dtrace_versions[] array declared below. 65 * Refer to the Solaris Dynamic Tracing Guide Stability and Versioning chapters 66 * respectively for an explanation of these DTrace features and their values. 67 * 68 * NOTE: Although the DTrace versioning scheme supports the labeling and 69 * introduction of incompatible changes (e.g. dropping an interface in a 70 * major release), the libdtrace code does not currently support this. 71 * All versions are assumed to strictly inherit from one another. If 72 * we ever need to provide divergent interfaces, this will need work. 73 */ 74 #define DT_ATTR_STABCMN { DTRACE_STABILITY_STABLE, \ 75 DTRACE_STABILITY_STABLE, DTRACE_CLASS_COMMON } 76 77 #define DT_ATTR_EVOLCMN { DTRACE_STABILITY_EVOLVING, \ 78 DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_COMMON \ 79 } 80 81 /* 82 * The version number should be increased for every customer visible release 83 * of Solaris. The major number should be incremented when a fundamental 84 * change has been made that would affect all consumers, and would reflect 85 * sweeping changes to DTrace or the D language. The minor number should be 86 * incremented when a change is introduced that could break scripts that had 87 * previously worked; for example, adding a new built-in variable could break 88 * a script which was already using that identifier. The micro number should 89 * be changed when introducing functionality changes or major bug fixes that 90 * do not affect backward compatibility -- this is merely to make capabilities 91 * easily determined from the version number. Minor bugs do not require any 92 * modification to the version number. 93 */ 94 #define DT_VERS_1_0 DT_VERSION_NUMBER(1, 0, 0) 95 #define DT_VERS_1_1 DT_VERSION_NUMBER(1, 1, 0) 96 #define DT_VERS_1_2 DT_VERSION_NUMBER(1, 2, 0) 97 #define DT_VERS_1_2_1 DT_VERSION_NUMBER(1, 2, 1) 98 #define DT_VERS_1_2_2 DT_VERSION_NUMBER(1, 2, 2) 99 #define DT_VERS_1_3 DT_VERSION_NUMBER(1, 3, 0) 100 #define DT_VERS_1_4 DT_VERSION_NUMBER(1, 4, 0) 101 #define DT_VERS_1_4_1 DT_VERSION_NUMBER(1, 4, 1) 102 #define DT_VERS_1_5 DT_VERSION_NUMBER(1, 5, 0) 103 #define DT_VERS_1_6 DT_VERSION_NUMBER(1, 6, 0) 104 #define DT_VERS_1_6_1 DT_VERSION_NUMBER(1, 6, 1) 105 #define DT_VERS_1_6_2 DT_VERSION_NUMBER(1, 6, 2) 106 #define DT_VERS_1_6_3 DT_VERSION_NUMBER(1, 6, 3) 107 #define DT_VERS_1_7 DT_VERSION_NUMBER(1, 7, 0) 108 #define DT_VERS_1_7_1 DT_VERSION_NUMBER(1, 7, 1) 109 #define DT_VERS_LATEST DT_VERS_1_7_1 110 #define DT_VERS_STRING "Sun D 1.7.1" 111 112 const dt_version_t _dtrace_versions[] = { 113 DT_VERS_1_0, /* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */ 114 DT_VERS_1_1, /* D API 1.1.0 Solaris Express 6/05 */ 115 DT_VERS_1_2, /* D API 1.2.0 Solaris 10 Update 1 */ 116 DT_VERS_1_2_1, /* D API 1.2.1 Solaris Express 4/06 */ 117 DT_VERS_1_2_2, /* D API 1.2.2 Solaris Express 6/06 */ 118 DT_VERS_1_3, /* D API 1.3 Solaris Express 10/06 */ 119 DT_VERS_1_4, /* D API 1.4 Solaris Express 2/07 */ 120 DT_VERS_1_4_1, /* D API 1.4.1 Solaris Express 4/07 */ 121 DT_VERS_1_5, /* D API 1.5 Solaris Express 7/07 */ 122 DT_VERS_1_6, /* D API 1.6 */ 123 DT_VERS_1_6_1, /* D API 1.6.1 */ 124 DT_VERS_1_6_2, /* D API 1.6.2 */ 125 DT_VERS_1_6_3, /* D API 1.6.3 */ 126 DT_VERS_1_7, /* D API 1.7 */ 127 DT_VERS_1_7_1, /* D API 1.7.1 */ 128 0 129 }; 130 131 /* 132 * Table of global identifiers. This is used to populate the global identifier 133 * hash when a new dtrace client open occurs. For more info see dt_ident.h. 134 * The global identifiers that represent functions use the dt_idops_func ops 135 * and specify the private data pointer as a prototype string which is parsed 136 * when the identifier is first encountered. These prototypes look like ANSI 137 * C function prototypes except that the special symbol "@" can be used as a 138 * wildcard to represent a single parameter of any type (i.e. any dt_node_t). 139 * The standard "..." notation can also be used to represent varargs. An empty 140 * parameter list is taken to mean void (that is, no arguments are permitted). 141 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional 142 * argument. 143 */ 144 static const dt_ident_t _dtrace_globals[] = { 145 { "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0, 146 &dt_idops_func, "void *(size_t)" }, 147 { "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0, 148 &dt_idops_type, "int64_t" }, 149 { "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0, 150 &dt_idops_type, "int64_t" }, 151 { "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0, 152 &dt_idops_type, "int64_t" }, 153 { "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0, 154 &dt_idops_type, "int64_t" }, 155 { "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0, 156 &dt_idops_type, "int64_t" }, 157 { "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0, 158 &dt_idops_type, "int64_t" }, 159 { "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0, 160 &dt_idops_type, "int64_t" }, 161 { "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0, 162 &dt_idops_type, "int64_t" }, 163 { "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0, 164 &dt_idops_type, "int64_t" }, 165 { "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0, 166 &dt_idops_type, "int64_t" }, 167 { "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0, 168 &dt_idops_args, NULL }, 169 { "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0, 170 &dt_idops_func, "void(@)" }, 171 { "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0, 172 &dt_idops_func, "string(const char *)" }, 173 { "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0, 174 &dt_idops_func, "void(void *, void *, size_t)" }, 175 { "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT, 176 DT_ATTR_STABCMN, DT_VERS_1_0, 177 &dt_idops_func, "void()" }, 178 { "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0, 179 &dt_idops_type, "uintptr_t" }, 180 { "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0, 181 &dt_idops_func, "void(int)" }, 182 { "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN, 183 DT_VERS_1_0, &dt_idops_func, "string(const char *)" }, 184 { "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0, 185 &dt_idops_func, "void(...)" }, 186 { "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0, 187 &dt_idops_func, "void(int)" }, 188 { "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0, 189 &dt_idops_func, "void *(uintptr_t, size_t)" }, 190 { "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR, 191 DT_ATTR_STABCMN, DT_VERS_1_0, 192 &dt_idops_func, "string(uintptr_t, [size_t])" }, 193 { "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN, 194 DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" }, 195 { "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0, 196 &dt_idops_func, "void(void *, uintptr_t, size_t)" }, 197 { "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR, 198 DT_ATTR_STABCMN, DT_VERS_1_0, 199 &dt_idops_func, "void(char *, uintptr_t, size_t)" }, 200 { "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0, 201 &dt_idops_func, "void()" }, 202 { "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD, 203 { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE, 204 DTRACE_CLASS_COMMON }, DT_VERS_1_0, 205 &dt_idops_type, "genunix`kthread_t *" }, 206 { "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME, 207 DT_ATTR_EVOLCMN, DT_VERS_1_0, 208 &dt_idops_func, "string(void *, int64_t)" }, 209 { "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN, 210 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 211 { "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0, 212 &dt_idops_func, "string(const char *)" }, 213 { "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0, 214 &dt_idops_func, "void(int)" }, 215 { "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0, 216 &dt_idops_type, "uint_t" }, 217 { "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0, 218 &dt_idops_type, "int" }, 219 { "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME, 220 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 221 { "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0, 222 &dt_idops_func, "void(int)" }, 223 { "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN, 224 DT_VERS_1_1, &dt_idops_func, "void(@, ...)" }, 225 { "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN, 226 DT_VERS_1_0, &dt_idops_func, "void()" }, 227 { "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 228 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 229 { "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR, 230 DT_ATTR_EVOLCMN, DT_VERS_1_0, 231 &dt_idops_func, "genunix`major_t(genunix`dev_t)" }, 232 { "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR, 233 DT_ATTR_EVOLCMN, DT_VERS_1_0, 234 &dt_idops_func, "genunix`minor_t(genunix`dev_t)" }, 235 { "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 236 &dt_idops_func, "uint32_t(uint32_t)" }, 237 { "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 238 &dt_idops_func, "uint64_t(uint64_t)" }, 239 { "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 240 &dt_idops_func, "uint16_t(uint16_t)" }, 241 { "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0, 242 &dt_idops_type, "gid_t" }, 243 { "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0, 244 &dt_idops_type, "uint_t" }, 245 { "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 246 &dt_idops_func, "int(const char *, const char *, [int])" }, 247 { "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN, 248 DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" }, 249 { "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN, 250 DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" }, 251 { "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN, 252 DT_VERS_1_5, &dt_idops_func, "string(int, void *)" }, 253 { "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0, 254 &dt_idops_type, "uint_t" }, 255 { "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 256 &dt_idops_func, "stack(...)" }, 257 { "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0, 258 &dt_idops_func, "string(int64_t)" }, 259 { "llquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LLQUANTIZE, DT_ATTR_STABCMN, 260 DT_VERS_1_7, &dt_idops_func, 261 "void(@, int32_t, int32_t, int32_t, int32_t, ...)" }, 262 { "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE, 263 DT_ATTR_STABCMN, DT_VERS_1_0, 264 &dt_idops_func, "void(@, int32_t, int32_t, ...)" }, 265 { "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0, 266 &dt_idops_func, "void(@)" }, 267 { "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0, 268 &dt_idops_func, "void(@)" }, 269 { "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN, 270 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 271 { "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE, 272 DT_ATTR_STABCMN, DT_VERS_1_0, 273 &dt_idops_func, "size_t(mblk_t *)" }, 274 { "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE, 275 DT_ATTR_STABCMN, DT_VERS_1_0, 276 &dt_idops_func, "size_t(mblk_t *)" }, 277 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 278 DT_ATTR_EVOLCMN, DT_VERS_1_0, 279 &dt_idops_func, "int(genunix`kmutex_t *)" }, 280 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 281 DT_ATTR_EVOLCMN, DT_VERS_1_0, 282 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" }, 283 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 284 DT_ATTR_EVOLCMN, DT_VERS_1_0, 285 &dt_idops_func, "int(genunix`kmutex_t *)" }, 286 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 287 DT_ATTR_EVOLCMN, DT_VERS_1_0, 288 &dt_idops_func, "int(genunix`kmutex_t *)" }, 289 { "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 290 &dt_idops_func, "uint32_t(uint32_t)" }, 291 { "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 292 &dt_idops_func, "uint64_t(uint64_t)" }, 293 { "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 294 &dt_idops_func, "uint16_t(uint16_t)" }, 295 { "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN, 296 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 297 { "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0, 298 &dt_idops_func, "void()" }, 299 { "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0, 300 &dt_idops_type, "pid_t" }, 301 { "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0, 302 &dt_idops_type, "pid_t" }, 303 { "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0, 304 &dt_idops_func, "void(@, ...)" }, 305 { "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0, 306 &dt_idops_func, "void(@, ...)" }, 307 { "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC, 308 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 309 { "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD, 310 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 311 { "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME, 312 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 313 { "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV, 314 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 315 { "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF, 316 DT_ATTR_STABCMN, DT_VERS_1_0, 317 &dt_idops_func, "int(pid_t)" }, 318 { "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE, 319 DT_ATTR_STABCMN, DT_VERS_1_0, 320 &dt_idops_func, "void(@, ...)" }, 321 { "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0, 322 &dt_idops_func, "void(int)" }, 323 { "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0, 324 &dt_idops_func, "int()" }, 325 { "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 326 &dt_idops_func, "int(const char *, const char *, [int])" }, 327 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 328 DT_ATTR_EVOLCMN, DT_VERS_1_0, 329 &dt_idops_func, "int(genunix`krwlock_t *)" }, 330 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 331 DT_ATTR_EVOLCMN, DT_VERS_1_0, 332 &dt_idops_func, "int(genunix`krwlock_t *)" }, 333 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 334 DT_ATTR_EVOLCMN, DT_VERS_1_0, 335 &dt_idops_func, "int(genunix`krwlock_t *)" }, 336 { "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 337 &dt_idops_type, "void" }, 338 { "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN, 339 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" }, 340 { "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE, 341 DT_ATTR_STABCMN, DT_VERS_1_0, 342 &dt_idops_func, "void(int)" }, 343 { "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION, 344 DT_ATTR_STABCMN, DT_VERS_1_0, 345 &dt_idops_func, "int()" }, 346 { "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0, 347 &dt_idops_func, "stack(...)" }, 348 { "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH, 349 DT_ATTR_STABCMN, DT_VERS_1_0, 350 &dt_idops_type, "uint32_t" }, 351 { "stddev", DT_IDENT_AGGFUNC, 0, DTRACEAGG_STDDEV, DT_ATTR_STABCMN, 352 DT_VERS_1_6, &dt_idops_func, "void(@)" }, 353 { "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0, 354 &dt_idops_func, "void()" }, 355 { "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 356 &dt_idops_func, "string(const char *, char)" }, 357 { "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0, 358 &dt_idops_func, "size_t(const char *)" }, 359 { "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0, 360 &dt_idops_func, "string(const char *, const char *)" }, 361 { "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 362 &dt_idops_func, "string(const char *, char)" }, 363 { "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 364 &dt_idops_func, "string(const char *, const char *)" }, 365 { "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1, 366 &dt_idops_func, "string(const char *, const char *)" }, 367 { "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 368 &dt_idops_func, "string(const char *, int, [int])" }, 369 { "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0, 370 &dt_idops_func, "void(@)" }, 371 { "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 372 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 373 { "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0, 374 &dt_idops_func, "void(@, ...)" }, 375 { "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 376 &dt_idops_type, "void" }, 377 { "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0, 378 &dt_idops_type, "id_t" }, 379 { "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP, 380 DT_ATTR_STABCMN, DT_VERS_1_0, 381 &dt_idops_type, "uint64_t" }, 382 { "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0, 383 &dt_idops_func, "void(@)" }, 384 { "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM, 385 DT_ATTR_STABCMN, DT_VERS_1_0, 386 &dt_idops_func, "void(@, size_t, ...)" }, 387 { "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN, 388 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 389 { "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN, 390 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 391 { "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN, 392 DT_VERS_1_2, &dt_idops_type, "uint64_t" }, 393 { "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 394 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 395 { "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0, 396 &dt_idops_type, "uid_t" }, 397 { "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN, 398 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 399 { "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0, 400 &dt_idops_regs, NULL }, 401 { "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 402 &dt_idops_func, "stack(...)" }, 403 { "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH, 404 DT_ATTR_STABCMN, DT_VERS_1_2, 405 &dt_idops_type, "uint32_t" }, 406 { "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 407 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 408 { "vmregs", DT_IDENT_ARRAY, 0, DIF_VAR_VMREGS, DT_ATTR_STABCMN, DT_VERS_1_7, 409 &dt_idops_regs, NULL }, 410 { "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP, 411 DT_ATTR_STABCMN, DT_VERS_1_0, 412 &dt_idops_type, "uint64_t" }, 413 { "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP, 414 DT_ATTR_STABCMN, DT_VERS_1_0, 415 &dt_idops_type, "int64_t" }, 416 { "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME, 417 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 418 { NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL } 419 }; 420 421 /* 422 * Tables of ILP32 intrinsic integer and floating-point type templates to use 423 * to populate the dynamic "C" CTF type container. 424 */ 425 static const dt_intrinsic_t _dtrace_intrinsics_32[] = { 426 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 427 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 428 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 429 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 430 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 431 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 432 { "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 433 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 434 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 435 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 436 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 437 { "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 438 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 439 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 440 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 441 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 442 { "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER }, 443 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 444 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 445 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 446 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 447 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 448 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 449 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 450 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 451 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 452 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 453 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 454 { NULL, { 0, 0, 0 }, 0 } 455 }; 456 457 /* 458 * Tables of LP64 intrinsic integer and floating-point type templates to use 459 * to populate the dynamic "C" CTF type container. 460 */ 461 static const dt_intrinsic_t _dtrace_intrinsics_64[] = { 462 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 463 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 464 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 465 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 466 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 467 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 468 { "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 469 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 470 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 471 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 472 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 473 { "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 474 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 475 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 476 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 477 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 478 { "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER }, 479 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 480 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 481 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 482 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 483 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 484 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 485 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 486 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 487 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 488 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 489 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 490 { NULL, { 0, 0, 0 }, 0 } 491 }; 492 493 /* 494 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container. 495 * These aliases ensure that D definitions can use typical <sys/types.h> names. 496 */ 497 static const dt_typedef_t _dtrace_typedefs_32[] = { 498 { "char", "int8_t" }, 499 { "short", "int16_t" }, 500 { "int", "int32_t" }, 501 { "long long", "int64_t" }, 502 { "int", "intptr_t" }, 503 { "int", "ssize_t" }, 504 { "unsigned char", "uint8_t" }, 505 { "unsigned short", "uint16_t" }, 506 { "unsigned", "uint32_t" }, 507 { "unsigned long long", "uint64_t" }, 508 { "unsigned char", "uchar_t" }, 509 { "unsigned short", "ushort_t" }, 510 { "unsigned", "uint_t" }, 511 { "unsigned long", "ulong_t" }, 512 { "unsigned long long", "u_longlong_t" }, 513 { "int", "ptrdiff_t" }, 514 { "unsigned", "uintptr_t" }, 515 { "unsigned", "size_t" }, 516 { "long", "id_t" }, 517 { "long", "pid_t" }, 518 { NULL, NULL } 519 }; 520 521 /* 522 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container. 523 * These aliases ensure that D definitions can use typical <sys/types.h> names. 524 */ 525 static const dt_typedef_t _dtrace_typedefs_64[] = { 526 { "char", "int8_t" }, 527 { "short", "int16_t" }, 528 { "int", "int32_t" }, 529 { "long", "int64_t" }, 530 { "long", "intptr_t" }, 531 { "long", "ssize_t" }, 532 { "unsigned char", "uint8_t" }, 533 { "unsigned short", "uint16_t" }, 534 { "unsigned", "uint32_t" }, 535 { "unsigned long", "uint64_t" }, 536 { "unsigned char", "uchar_t" }, 537 { "unsigned short", "ushort_t" }, 538 { "unsigned", "uint_t" }, 539 { "unsigned long", "ulong_t" }, 540 { "unsigned long long", "u_longlong_t" }, 541 { "long", "ptrdiff_t" }, 542 { "unsigned long", "uintptr_t" }, 543 { "unsigned long", "size_t" }, 544 { "int", "id_t" }, 545 { "int", "pid_t" }, 546 { NULL, NULL } 547 }; 548 549 /* 550 * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[] 551 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 552 */ 553 static const dt_intdesc_t _dtrace_ints_32[] = { 554 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 555 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 556 { "long", NULL, CTF_ERR, 0x7fffffffULL }, 557 { "unsigned long", NULL, CTF_ERR, 0xffffffffULL }, 558 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 559 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 560 }; 561 562 /* 563 * Tables of LP64 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_64[] = { 567 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 568 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 569 { "long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 570 { "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL }, 571 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 572 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 573 }; 574 575 /* 576 * Table of macro variable templates used to populate the macro identifier hash 577 * when a new dtrace client open occurs. Values are set by dtrace_update(). 578 */ 579 static const dt_ident_t _dtrace_macros[] = { 580 { "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 581 { "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 582 { "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 583 { "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 584 { "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 585 { "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 586 { "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 587 { "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 588 { "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 589 { "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 590 { "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 591 { NULL, 0, 0, 0, { 0, 0, 0 }, 0 } 592 }; 593 594 /* 595 * Hard-wired definition string to be compiled and cached every time a new 596 * DTrace library handle is initialized. This string should only be used to 597 * contain definitions that should be present regardless of DTRACE_O_NOLIBS. 598 */ 599 static const char _dtrace_hardwire[] = "\ 600 inline long NULL = 0; \n\ 601 #pragma D binding \"1.0\" NULL\n\ 602 "; 603 604 /* 605 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV. 606 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel. 607 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are 608 * relying on the fact that when running dtrace(1M), isaexec will invoke the 609 * binary with the same bitness as the kernel, which is what we want by default 610 * when generating our DIF. The user can override the choice using oflags. 611 */ 612 static const dtrace_conf_t _dtrace_conf = { 613 DIF_VERSION, /* dtc_difversion */ 614 DIF_DIR_NREGS, /* dtc_difintregs */ 615 DIF_DTR_NREGS, /* dtc_diftupregs */ 616 CTF_MODEL_NATIVE /* dtc_ctfmodel */ 617 }; 618 619 const dtrace_attribute_t _dtrace_maxattr = { 620 DTRACE_STABILITY_MAX, 621 DTRACE_STABILITY_MAX, 622 DTRACE_CLASS_MAX 623 }; 624 625 const dtrace_attribute_t _dtrace_defattr = { 626 DTRACE_STABILITY_STABLE, 627 DTRACE_STABILITY_STABLE, 628 DTRACE_CLASS_COMMON 629 }; 630 631 const dtrace_attribute_t _dtrace_symattr = { 632 DTRACE_STABILITY_PRIVATE, 633 DTRACE_STABILITY_PRIVATE, 634 DTRACE_CLASS_UNKNOWN 635 }; 636 637 const dtrace_attribute_t _dtrace_typattr = { 638 DTRACE_STABILITY_PRIVATE, 639 DTRACE_STABILITY_PRIVATE, 640 DTRACE_CLASS_UNKNOWN 641 }; 642 643 const dtrace_attribute_t _dtrace_prvattr = { 644 DTRACE_STABILITY_PRIVATE, 645 DTRACE_STABILITY_PRIVATE, 646 DTRACE_CLASS_UNKNOWN 647 }; 648 649 const dtrace_pattr_t _dtrace_prvdesc = { 650 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 651 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 652 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 653 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 654 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 655 }; 656 657 const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */ 658 const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */ 659 660 const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */ 661 const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */ 662 663 int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */ 664 int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */ 665 uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */ 666 uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */ 667 uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */ 668 uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */ 669 size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */ 670 int _dtrace_argmax = 32; /* default maximum number of probe arguments */ 671 672 int _dtrace_debug = 0; /* debug messages enabled (off) */ 673 const char *const _dtrace_version = DT_VERS_STRING; /* API version string */ 674 int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */ 675 676 typedef struct dt_fdlist { 677 int *df_fds; /* array of provider driver file descriptors */ 678 uint_t df_ents; /* number of valid elements in df_fds[] */ 679 uint_t df_size; /* size of df_fds[] */ 680 } dt_fdlist_t; 681 682 #pragma init(_dtrace_init) 683 void 684 _dtrace_init(void) 685 { 686 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL; 687 688 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) { 689 if (rd_init(_dtrace_rdvers) == RD_OK) 690 break; 691 } 692 } 693 694 static dtrace_hdl_t * 695 set_open_errno(dtrace_hdl_t *dtp, int *errp, int err) 696 { 697 if (dtp != NULL) 698 dtrace_close(dtp); 699 if (errp != NULL) 700 *errp = err; 701 return (NULL); 702 } 703 704 static void 705 dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp) 706 { 707 dt_provmod_t *prov; 708 char path[PATH_MAX]; 709 struct dirent *dp, *ep; 710 DIR *dirp; 711 int fd; 712 713 if ((dirp = opendir(_dtrace_provdir)) == NULL) 714 return; /* failed to open directory; just skip it */ 715 716 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1); 717 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1); 718 719 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) { 720 if (dp->d_name[0] == '.') 721 continue; /* skip "." and ".." */ 722 723 if (dfp->df_ents == dfp->df_size) { 724 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 725 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 726 727 if (fds == NULL) 728 break; /* skip the rest of this directory */ 729 730 dfp->df_fds = fds; 731 dfp->df_size = size; 732 } 733 734 (void) snprintf(path, sizeof (path), "%s/%s", 735 _dtrace_provdir, dp->d_name); 736 737 if ((fd = open(path, O_RDONLY)) == -1) 738 continue; /* failed to open driver; just skip it */ 739 740 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 741 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) { 742 free(prov); 743 (void) close(fd); 744 break; 745 } 746 747 (void) strcpy(prov->dp_name, dp->d_name); 748 prov->dp_next = *provmod; 749 *provmod = prov; 750 751 dt_dprintf("opened provider %s\n", dp->d_name); 752 dfp->df_fds[dfp->df_ents++] = fd; 753 } 754 755 (void) closedir(dirp); 756 } 757 758 static void 759 dt_provmod_destroy(dt_provmod_t **provmod) 760 { 761 dt_provmod_t *next, *current; 762 763 for (current = *provmod; current != NULL; current = next) { 764 next = current->dp_next; 765 free(current->dp_name); 766 free(current); 767 } 768 769 *provmod = NULL; 770 } 771 772 static const char * 773 dt_get_sysinfo(int cmd, char *buf, size_t len) 774 { 775 ssize_t rv = sysinfo(cmd, buf, len); 776 char *p = buf; 777 778 if (rv < 0 || rv > len) 779 (void) snprintf(buf, len, "%s", "Unknown"); 780 781 while ((p = strchr(p, '.')) != NULL) 782 *p++ = '_'; 783 784 return (buf); 785 } 786 787 static dtrace_hdl_t * 788 dt_vopen(int version, int flags, int *errp, 789 const dtrace_vector_t *vector, void *arg) 790 { 791 dtrace_hdl_t *dtp = NULL; 792 int dtfd = -1, ftfd = -1, fterr = 0; 793 dtrace_prog_t *pgp; 794 dt_module_t *dmp; 795 dt_provmod_t *provmod = NULL; 796 int i, err; 797 struct rlimit rl; 798 799 const dt_intrinsic_t *dinp; 800 const dt_typedef_t *dtyp; 801 const dt_ident_t *idp; 802 803 dtrace_typeinfo_t dtt; 804 ctf_funcinfo_t ctc; 805 ctf_arinfo_t ctr; 806 807 dt_fdlist_t df = { NULL, 0, 0 }; 808 809 char isadef[32], utsdef[32]; 810 char s1[64], s2[64]; 811 812 if (version <= 0) 813 return (set_open_errno(dtp, errp, EINVAL)); 814 815 if (version > DTRACE_VERSION) 816 return (set_open_errno(dtp, errp, EDT_VERSION)); 817 818 if (version < DTRACE_VERSION) { 819 /* 820 * Currently, increasing the library version number is used to 821 * denote a binary incompatible change. That is, a consumer 822 * of the library cannot run on a version of the library with 823 * a higher DTRACE_VERSION number than the consumer compiled 824 * against. Once the library API has been committed to, 825 * backwards binary compatibility will be required; at that 826 * time, this check should change to return EDT_OVERSION only 827 * if the specified version number is less than the version 828 * number at the time of interface commitment. 829 */ 830 return (set_open_errno(dtp, errp, EDT_OVERSION)); 831 } 832 833 if (flags & ~DTRACE_O_MASK) 834 return (set_open_errno(dtp, errp, EINVAL)); 835 836 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32)) 837 return (set_open_errno(dtp, errp, EINVAL)); 838 839 if (vector == NULL && arg != NULL) 840 return (set_open_errno(dtp, errp, EINVAL)); 841 842 if (elf_version(EV_CURRENT) == EV_NONE) 843 return (set_open_errno(dtp, errp, EDT_ELFVERSION)); 844 845 if (vector != NULL || (flags & DTRACE_O_NODEV)) 846 goto alloc; /* do not attempt to open dtrace device */ 847 848 /* 849 * Before we get going, crank our limit on file descriptors up to the 850 * hard limit. This is to allow for the fact that libproc keeps file 851 * descriptors to objects open for the lifetime of the proc handle; 852 * without raising our hard limit, we would have an acceptably small 853 * bound on the number of processes that we could concurrently 854 * instrument with the pid provider. 855 */ 856 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) { 857 rl.rlim_cur = rl.rlim_max; 858 (void) setrlimit(RLIMIT_NOFILE, &rl); 859 } 860 861 /* 862 * Get the device path of each of the providers. We hold them open 863 * in the df.df_fds list until we open the DTrace driver itself, 864 * allowing us to see all of the probes provided on this system. Once 865 * we have the DTrace driver open, we can safely close all the providers 866 * now that they have registered with the framework. 867 */ 868 dt_provmod_open(&provmod, &df); 869 870 dtfd = open("/dev/dtrace/dtrace", O_RDWR); 871 err = errno; /* save errno from opening dtfd */ 872 873 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR); 874 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */ 875 876 while (df.df_ents-- != 0) 877 (void) close(df.df_fds[df.df_ents]); 878 879 free(df.df_fds); 880 881 /* 882 * If we failed to open the dtrace device, fail dtrace_open(). 883 * We convert some kernel errnos to custom libdtrace errnos to 884 * improve the resulting message from the usual strerror(). 885 */ 886 if (dtfd == -1) { 887 dt_provmod_destroy(&provmod); 888 switch (err) { 889 case ENOENT: 890 err = EDT_NOENT; 891 break; 892 case EBUSY: 893 err = EDT_BUSY; 894 break; 895 case EACCES: 896 err = EDT_ACCESS; 897 break; 898 } 899 return (set_open_errno(dtp, errp, err)); 900 } 901 902 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC); 903 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC); 904 905 alloc: 906 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL) 907 return (set_open_errno(dtp, errp, EDT_NOMEM)); 908 909 bzero(dtp, sizeof (dtrace_hdl_t)); 910 dtp->dt_oflags = flags; 911 dtp->dt_prcmode = DT_PROC_STOP_PREINIT; 912 dtp->dt_linkmode = DT_LINK_KERNEL; 913 dtp->dt_linktype = DT_LTYP_ELF; 914 dtp->dt_xlatemode = DT_XL_STATIC; 915 dtp->dt_stdcmode = DT_STDC_XA; 916 dtp->dt_version = version; 917 dtp->dt_fd = dtfd; 918 dtp->dt_ftfd = ftfd; 919 dtp->dt_fterr = fterr; 920 dtp->dt_cdefs_fd = -1; 921 dtp->dt_ddefs_fd = -1; 922 dtp->dt_stdout_fd = -1; 923 dtp->dt_modbuckets = _dtrace_strbuckets; 924 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *)); 925 dtp->dt_provbuckets = _dtrace_strbuckets; 926 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *)); 927 dt_proc_hash_create(dtp); 928 dtp->dt_vmax = DT_VERS_LATEST; 929 dtp->dt_cpp_path = strdup(_dtrace_defcpp); 930 dtp->dt_cpp_argv = malloc(sizeof (char *)); 931 dtp->dt_cpp_argc = 1; 932 dtp->dt_cpp_args = 1; 933 dtp->dt_ld_path = strdup(_dtrace_defld); 934 dtp->dt_provmod = provmod; 935 dtp->dt_vector = vector; 936 dtp->dt_varg = arg; 937 dt_dof_init(dtp); 938 (void) uname(&dtp->dt_uts); 939 940 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL || 941 dtp->dt_procs == NULL || dtp->dt_ld_path == NULL || 942 dtp->dt_cpp_path == NULL || dtp->dt_cpp_argv == NULL) 943 return (set_open_errno(dtp, errp, EDT_NOMEM)); 944 945 for (i = 0; i < DTRACEOPT_MAX; i++) 946 dtp->dt_options[i] = DTRACEOPT_UNSET; 947 948 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path); 949 950 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u", 951 (uint_t)(sizeof (void *) * NBBY)); 952 953 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s", 954 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)), 955 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2))); 956 957 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL || 958 dt_cpp_add_arg(dtp, "-D__unix") == NULL || 959 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL || 960 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL || 961 dt_cpp_add_arg(dtp, isadef) == NULL || 962 dt_cpp_add_arg(dtp, utsdef) == NULL) 963 return (set_open_errno(dtp, errp, EDT_NOMEM)); 964 965 if (flags & DTRACE_O_NODEV) 966 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf)); 967 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0) 968 return (set_open_errno(dtp, errp, errno)); 969 970 if (flags & DTRACE_O_LP64) 971 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64; 972 else if (flags & DTRACE_O_ILP32) 973 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32; 974 975 #ifdef __sparc 976 /* 977 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h> 978 * and __sparcv9 is defined if we are doing a 64-bit compile. 979 */ 980 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL) 981 return (set_open_errno(dtp, errp, EDT_NOMEM)); 982 983 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 && 984 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL) 985 return (set_open_errno(dtp, errp, EDT_NOMEM)); 986 #endif 987 988 #ifdef __x86 989 /* 990 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit 991 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC, 992 * they are defined exclusive of one another (see PSARC 2004/619). 993 */ 994 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 995 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL) 996 return (set_open_errno(dtp, errp, EDT_NOMEM)); 997 } else { 998 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL) 999 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1000 } 1001 #endif 1002 1003 if (dtp->dt_conf.dtc_difversion < DIF_VERSION) 1004 return (set_open_errno(dtp, errp, EDT_DIFVERS)); 1005 1006 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) 1007 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32)); 1008 else 1009 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64)); 1010 1011 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX); 1012 dtp->dt_aggs = dt_idhash_create("aggregation", NULL, 1013 DTRACE_AGGVARIDNONE + 1, UINT_MAX); 1014 1015 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals, 1016 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1017 1018 dtp->dt_tls = dt_idhash_create("thread local", NULL, 1019 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1020 1021 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL || 1022 dtp->dt_globals == NULL || dtp->dt_tls == NULL) 1023 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1024 1025 /* 1026 * Populate the dt_macros identifier hash table by hand: we can't use 1027 * the dt_idhash_populate() mechanism because we're not yet compiling 1028 * and dtrace_update() needs to immediately reference these idents. 1029 */ 1030 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) { 1031 if (dt_idhash_insert(dtp->dt_macros, idp->di_name, 1032 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr, 1033 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw, 1034 idp->di_iarg, 0) == NULL) 1035 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1036 } 1037 1038 /* 1039 * Update the module list using /system/object and load the values for 1040 * the macro variable definitions according to the current process. 1041 */ 1042 dtrace_update(dtp); 1043 1044 /* 1045 * Select the intrinsics and typedefs we want based on the data model. 1046 * The intrinsics are under "C". The typedefs are added under "D". 1047 */ 1048 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) { 1049 dinp = _dtrace_intrinsics_32; 1050 dtyp = _dtrace_typedefs_32; 1051 } else { 1052 dinp = _dtrace_intrinsics_64; 1053 dtyp = _dtrace_typedefs_64; 1054 } 1055 1056 /* 1057 * Create a dynamic CTF container under the "C" scope for intrinsic 1058 * types and types defined in ANSI-C header files that are included. 1059 */ 1060 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL) 1061 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1062 1063 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1064 return (set_open_errno(dtp, errp, EDT_CTF)); 1065 1066 dt_dprintf("created CTF container for %s (%p)\n", 1067 dmp->dm_name, (void *)dmp->dm_ctfp); 1068 1069 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1070 ctf_setspecific(dmp->dm_ctfp, dmp); 1071 1072 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1073 dmp->dm_modid = -1; /* no module ID */ 1074 1075 /* 1076 * Fill the dynamic "C" CTF container with all of the intrinsic 1077 * integer and floating-point types appropriate for this data model. 1078 */ 1079 for (; dinp->din_name != NULL; dinp++) { 1080 if (dinp->din_kind == CTF_K_INTEGER) { 1081 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT, 1082 dinp->din_name, &dinp->din_data); 1083 } else { 1084 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT, 1085 dinp->din_name, &dinp->din_data); 1086 } 1087 1088 if (err == CTF_ERR) { 1089 dt_dprintf("failed to add %s to C container: %s\n", 1090 dinp->din_name, ctf_errmsg( 1091 ctf_errno(dmp->dm_ctfp))); 1092 return (set_open_errno(dtp, errp, EDT_CTF)); 1093 } 1094 } 1095 1096 if (ctf_update(dmp->dm_ctfp) != 0) { 1097 dt_dprintf("failed to update C container: %s\n", 1098 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1099 return (set_open_errno(dtp, errp, EDT_CTF)); 1100 } 1101 1102 /* 1103 * Add intrinsic pointer types that are needed to initialize printf 1104 * format dictionary types (see table in dt_printf.c). 1105 */ 1106 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1107 ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1108 1109 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1110 ctf_lookup_by_name(dmp->dm_ctfp, "char")); 1111 1112 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1113 ctf_lookup_by_name(dmp->dm_ctfp, "int")); 1114 1115 if (ctf_update(dmp->dm_ctfp) != 0) { 1116 dt_dprintf("failed to update C container: %s\n", 1117 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1118 return (set_open_errno(dtp, errp, EDT_CTF)); 1119 } 1120 1121 /* 1122 * Create a dynamic CTF container under the "D" scope for types that 1123 * are defined by the D program itself or on-the-fly by the D compiler. 1124 * The "D" CTF container is a child of the "C" CTF container. 1125 */ 1126 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL) 1127 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1128 1129 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1130 return (set_open_errno(dtp, errp, EDT_CTF)); 1131 1132 dt_dprintf("created CTF container for %s (%p)\n", 1133 dmp->dm_name, (void *)dmp->dm_ctfp); 1134 1135 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1136 ctf_setspecific(dmp->dm_ctfp, dmp); 1137 1138 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1139 dmp->dm_modid = -1; /* no module ID */ 1140 1141 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) { 1142 dt_dprintf("failed to import D parent container: %s\n", 1143 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1144 return (set_open_errno(dtp, errp, EDT_CTF)); 1145 } 1146 1147 /* 1148 * Fill the dynamic "D" CTF container with all of the built-in typedefs 1149 * that we need to use for our D variable and function definitions. 1150 * This ensures that basic inttypes.h names are always available to us. 1151 */ 1152 for (; dtyp->dty_src != NULL; dtyp++) { 1153 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1154 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp, 1155 dtyp->dty_src)) == CTF_ERR) { 1156 dt_dprintf("failed to add typedef %s %s to D " 1157 "container: %s", dtyp->dty_src, dtyp->dty_dst, 1158 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1159 return (set_open_errno(dtp, errp, EDT_CTF)); 1160 } 1161 } 1162 1163 /* 1164 * Insert a CTF ID corresponding to a pointer to a type of kind 1165 * CTF_K_FUNCTION we can use in the compiler for function pointers. 1166 * CTF treats all function pointers as "int (*)()" so we only need one. 1167 */ 1168 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int"); 1169 ctc.ctc_argc = 0; 1170 ctc.ctc_flags = 0; 1171 1172 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp, 1173 CTF_ADD_ROOT, &ctc, NULL); 1174 1175 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp, 1176 CTF_ADD_ROOT, dtp->dt_type_func); 1177 1178 /* 1179 * We also insert CTF definitions for the special D intrinsic types 1180 * string and <DYN> into the D container. The string type is added 1181 * as a typedef of char[n]. The <DYN> type is an alias for void. 1182 * We compare types to these special CTF ids throughout the compiler. 1183 */ 1184 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char"); 1185 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long"); 1186 ctr.ctr_nelems = _dtrace_strsize; 1187 1188 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1189 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr)); 1190 1191 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1192 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1193 1194 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1195 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1196 1197 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1198 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1199 1200 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1201 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1202 1203 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR || 1204 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR || 1205 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR || 1206 dtp->dt_type_usymaddr == CTF_ERR) { 1207 dt_dprintf("failed to add intrinsic to D container: %s\n", 1208 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1209 return (set_open_errno(dtp, errp, EDT_CTF)); 1210 } 1211 1212 if (ctf_update(dmp->dm_ctfp) != 0) { 1213 dt_dprintf("failed update D container: %s\n", 1214 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1215 return (set_open_errno(dtp, errp, EDT_CTF)); 1216 } 1217 1218 /* 1219 * Initialize the integer description table used to convert integer 1220 * constants to the appropriate types. Refer to the comments above 1221 * dt_node_int() for a complete description of how this table is used. 1222 */ 1223 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) { 1224 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY, 1225 dtp->dt_ints[i].did_name, &dtt) != 0) { 1226 dt_dprintf("failed to lookup integer type %s: %s\n", 1227 dtp->dt_ints[i].did_name, 1228 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1229 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1230 } 1231 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp; 1232 dtp->dt_ints[i].did_type = dtt.dtt_type; 1233 } 1234 1235 /* 1236 * Now that we've created the "C" and "D" containers, move them to the 1237 * start of the module list so that these types and symbols are found 1238 * first (for stability) when iterating through the module list. 1239 */ 1240 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs); 1241 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs); 1242 1243 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs); 1244 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs); 1245 1246 if (dt_pfdict_create(dtp) == -1) 1247 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1248 1249 /* 1250 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default 1251 * because without /dev/dtrace open, we will not be able to load the 1252 * names and attributes of any providers or probes from the kernel. 1253 */ 1254 if (flags & DTRACE_O_NODEV) 1255 dtp->dt_cflags |= DTRACE_C_ZDEFS; 1256 1257 /* 1258 * Load hard-wired inlines into the definition cache by calling the 1259 * compiler on the raw definition string defined above. 1260 */ 1261 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire, 1262 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) { 1263 dt_dprintf("failed to load hard-wired definitions: %s\n", 1264 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1265 return (set_open_errno(dtp, errp, EDT_HARDWIRE)); 1266 } 1267 1268 dt_program_destroy(dtp, pgp); 1269 1270 /* 1271 * Set up the default DTrace library path. Once set, the next call to 1272 * dt_compile() will compile all the libraries. We intentionally defer 1273 * library processing to improve overhead for clients that don't ever 1274 * compile, and to provide better error reporting (because the full 1275 * reporting of compiler errors requires dtrace_open() to succeed). 1276 */ 1277 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0) 1278 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1279 1280 return (dtp); 1281 } 1282 1283 dtrace_hdl_t * 1284 dtrace_open(int version, int flags, int *errp) 1285 { 1286 return (dt_vopen(version, flags, errp, NULL, NULL)); 1287 } 1288 1289 dtrace_hdl_t * 1290 dtrace_vopen(int version, int flags, int *errp, 1291 const dtrace_vector_t *vector, void *arg) 1292 { 1293 return (dt_vopen(version, flags, errp, vector, arg)); 1294 } 1295 1296 void 1297 dtrace_close(dtrace_hdl_t *dtp) 1298 { 1299 dt_ident_t *idp, *ndp; 1300 dt_module_t *dmp; 1301 dt_provider_t *pvp; 1302 dtrace_prog_t *pgp; 1303 dt_xlator_t *dxp; 1304 dt_dirpath_t *dirp; 1305 int i; 1306 1307 if (dtp->dt_procs != NULL) 1308 dt_proc_hash_destroy(dtp); 1309 1310 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL) 1311 dt_program_destroy(dtp, pgp); 1312 1313 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL) 1314 dt_xlator_destroy(dtp, dxp); 1315 1316 dt_free(dtp, dtp->dt_xlatormap); 1317 1318 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) { 1319 ndp = idp->di_next; 1320 dt_ident_destroy(idp); 1321 } 1322 1323 if (dtp->dt_macros != NULL) 1324 dt_idhash_destroy(dtp->dt_macros); 1325 if (dtp->dt_aggs != NULL) 1326 dt_idhash_destroy(dtp->dt_aggs); 1327 if (dtp->dt_globals != NULL) 1328 dt_idhash_destroy(dtp->dt_globals); 1329 if (dtp->dt_tls != NULL) 1330 dt_idhash_destroy(dtp->dt_tls); 1331 1332 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL) 1333 dt_module_destroy(dtp, dmp); 1334 1335 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL) 1336 dt_provider_destroy(dtp, pvp); 1337 1338 if (dtp->dt_fd != -1) 1339 (void) close(dtp->dt_fd); 1340 if (dtp->dt_ftfd != -1) 1341 (void) close(dtp->dt_ftfd); 1342 if (dtp->dt_cdefs_fd != -1) 1343 (void) close(dtp->dt_cdefs_fd); 1344 if (dtp->dt_ddefs_fd != -1) 1345 (void) close(dtp->dt_ddefs_fd); 1346 if (dtp->dt_stdout_fd != -1) 1347 (void) close(dtp->dt_stdout_fd); 1348 1349 dt_epid_destroy(dtp); 1350 dt_aggid_destroy(dtp); 1351 dt_format_destroy(dtp); 1352 dt_buffered_destroy(dtp); 1353 dt_aggregate_destroy(dtp); 1354 free(dtp->dt_buf.dtbd_data); 1355 dt_pfdict_destroy(dtp); 1356 dt_provmod_destroy(&dtp->dt_provmod); 1357 dt_dof_fini(dtp); 1358 1359 for (i = 1; i < dtp->dt_cpp_argc; i++) 1360 free(dtp->dt_cpp_argv[i]); 1361 1362 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) { 1363 dt_list_delete(&dtp->dt_lib_path, dirp); 1364 free(dirp->dir_path); 1365 free(dirp); 1366 } 1367 1368 free(dtp->dt_cpp_argv); 1369 free(dtp->dt_cpp_path); 1370 free(dtp->dt_ld_path); 1371 1372 free(dtp->dt_mods); 1373 free(dtp->dt_provs); 1374 free(dtp); 1375 } 1376 1377 int 1378 dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods) 1379 { 1380 dt_provmod_t *prov; 1381 int i = 0; 1382 1383 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) { 1384 if (i < nmods) 1385 mods[i] = prov->dp_name; 1386 } 1387 1388 return (i); 1389 } 1390 1391 int 1392 dtrace_ctlfd(dtrace_hdl_t *dtp) 1393 { 1394 return (dtp->dt_fd); 1395 } 1396