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_1_8 DT_VERSION_NUMBER(1, 8, 0) 110 #define DT_VERS_LATEST DT_VERS_1_8 111 #define DT_VERS_STRING "Sun D 1.8" 112 113 const dt_version_t _dtrace_versions[] = { 114 DT_VERS_1_0, /* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */ 115 DT_VERS_1_1, /* D API 1.1.0 Solaris Express 6/05 */ 116 DT_VERS_1_2, /* D API 1.2.0 Solaris 10 Update 1 */ 117 DT_VERS_1_2_1, /* D API 1.2.1 Solaris Express 4/06 */ 118 DT_VERS_1_2_2, /* D API 1.2.2 Solaris Express 6/06 */ 119 DT_VERS_1_3, /* D API 1.3 Solaris Express 10/06 */ 120 DT_VERS_1_4, /* D API 1.4 Solaris Express 2/07 */ 121 DT_VERS_1_4_1, /* D API 1.4.1 Solaris Express 4/07 */ 122 DT_VERS_1_5, /* D API 1.5 Solaris Express 7/07 */ 123 DT_VERS_1_6, /* D API 1.6 */ 124 DT_VERS_1_6_1, /* D API 1.6.1 */ 125 DT_VERS_1_6_2, /* D API 1.6.2 */ 126 DT_VERS_1_6_3, /* D API 1.6.3 */ 127 DT_VERS_1_7, /* D API 1.7 */ 128 DT_VERS_1_7_1, /* D API 1.7.1 */ 129 DT_VERS_1_8, /* D API 1.8 */ 130 0 131 }; 132 133 /* 134 * Table of global identifiers. This is used to populate the global identifier 135 * hash when a new dtrace client open occurs. For more info see dt_ident.h. 136 * The global identifiers that represent functions use the dt_idops_func ops 137 * and specify the private data pointer as a prototype string which is parsed 138 * when the identifier is first encountered. These prototypes look like ANSI 139 * C function prototypes except that the special symbol "@" can be used as a 140 * wildcard to represent a single parameter of any type (i.e. any dt_node_t). 141 * The standard "..." notation can also be used to represent varargs. An empty 142 * parameter list is taken to mean void (that is, no arguments are permitted). 143 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional 144 * argument. 145 */ 146 static const dt_ident_t _dtrace_globals[] = { 147 { "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0, 148 &dt_idops_func, "void *(size_t)" }, 149 { "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0, 150 &dt_idops_type, "int64_t" }, 151 { "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0, 152 &dt_idops_type, "int64_t" }, 153 { "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0, 154 &dt_idops_type, "int64_t" }, 155 { "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0, 156 &dt_idops_type, "int64_t" }, 157 { "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0, 158 &dt_idops_type, "int64_t" }, 159 { "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0, 160 &dt_idops_type, "int64_t" }, 161 { "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0, 162 &dt_idops_type, "int64_t" }, 163 { "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0, 164 &dt_idops_type, "int64_t" }, 165 { "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0, 166 &dt_idops_type, "int64_t" }, 167 { "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0, 168 &dt_idops_type, "int64_t" }, 169 { "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0, 170 &dt_idops_args, NULL }, 171 { "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0, 172 &dt_idops_func, "void(@)" }, 173 { "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0, 174 &dt_idops_func, "string(const char *)" }, 175 { "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0, 176 &dt_idops_func, "void(void *, void *, size_t)" }, 177 { "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT, 178 DT_ATTR_STABCMN, DT_VERS_1_0, 179 &dt_idops_func, "void()" }, 180 { "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0, 181 &dt_idops_type, "uintptr_t" }, 182 { "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0, 183 &dt_idops_func, "void(int)" }, 184 { "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN, 185 DT_VERS_1_0, &dt_idops_func, "string(const char *)" }, 186 { "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0, 187 &dt_idops_func, "void(...)" }, 188 { "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0, 189 &dt_idops_func, "void(int)" }, 190 { "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0, 191 &dt_idops_func, "void *(uintptr_t, size_t)" }, 192 { "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR, 193 DT_ATTR_STABCMN, DT_VERS_1_0, 194 &dt_idops_func, "string(uintptr_t, [size_t])" }, 195 { "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN, 196 DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" }, 197 { "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0, 198 &dt_idops_func, "void(void *, uintptr_t, size_t)" }, 199 { "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR, 200 DT_ATTR_STABCMN, DT_VERS_1_0, 201 &dt_idops_func, "void(char *, uintptr_t, size_t)" }, 202 { "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0, 203 &dt_idops_func, "void()" }, 204 { "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD, 205 { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE, 206 DTRACE_CLASS_COMMON }, DT_VERS_1_0, 207 &dt_idops_type, "genunix`kthread_t *" }, 208 { "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME, 209 DT_ATTR_EVOLCMN, DT_VERS_1_0, 210 &dt_idops_func, "string(void *, int64_t)" }, 211 { "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN, 212 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 213 { "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0, 214 &dt_idops_func, "string(const char *)" }, 215 { "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0, 216 &dt_idops_func, "void(int)" }, 217 { "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0, 218 &dt_idops_type, "uint_t" }, 219 { "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0, 220 &dt_idops_type, "int" }, 221 { "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME, 222 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 223 { "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0, 224 &dt_idops_func, "void(int)" }, 225 { "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN, 226 DT_VERS_1_1, &dt_idops_func, "void(@, ...)" }, 227 { "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN, 228 DT_VERS_1_0, &dt_idops_func, "void()" }, 229 { "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 230 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 231 { "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR, 232 DT_ATTR_EVOLCMN, DT_VERS_1_0, 233 &dt_idops_func, "genunix`major_t(genunix`dev_t)" }, 234 { "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR, 235 DT_ATTR_EVOLCMN, DT_VERS_1_0, 236 &dt_idops_func, "genunix`minor_t(genunix`dev_t)" }, 237 { "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 238 &dt_idops_func, "uint32_t(uint32_t)" }, 239 { "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 240 &dt_idops_func, "uint64_t(uint64_t)" }, 241 { "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 242 &dt_idops_func, "uint16_t(uint16_t)" }, 243 { "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0, 244 &dt_idops_type, "gid_t" }, 245 { "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0, 246 &dt_idops_type, "uint_t" }, 247 { "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 248 &dt_idops_func, "int(const char *, const char *, [int])" }, 249 { "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN, 250 DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" }, 251 { "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN, 252 DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" }, 253 { "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN, 254 DT_VERS_1_5, &dt_idops_func, "string(int, void *)" }, 255 { "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0, 256 &dt_idops_type, "uint_t" }, 257 { "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 258 &dt_idops_func, "stack(...)" }, 259 { "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0, 260 &dt_idops_func, "string(int64_t)" }, 261 { "llquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LLQUANTIZE, DT_ATTR_STABCMN, 262 DT_VERS_1_7, &dt_idops_func, 263 "void(@, int32_t, int32_t, int32_t, int32_t, ...)" }, 264 { "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE, 265 DT_ATTR_STABCMN, DT_VERS_1_0, 266 &dt_idops_func, "void(@, int32_t, int32_t, ...)" }, 267 { "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0, 268 &dt_idops_func, "void(@)" }, 269 { "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0, 270 &dt_idops_func, "void(@)" }, 271 { "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN, 272 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 273 { "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE, 274 DT_ATTR_STABCMN, DT_VERS_1_0, 275 &dt_idops_func, "size_t(mblk_t *)" }, 276 { "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE, 277 DT_ATTR_STABCMN, DT_VERS_1_0, 278 &dt_idops_func, "size_t(mblk_t *)" }, 279 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 280 DT_ATTR_EVOLCMN, DT_VERS_1_0, 281 &dt_idops_func, "int(genunix`kmutex_t *)" }, 282 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 283 DT_ATTR_EVOLCMN, DT_VERS_1_0, 284 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" }, 285 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 286 DT_ATTR_EVOLCMN, DT_VERS_1_0, 287 &dt_idops_func, "int(genunix`kmutex_t *)" }, 288 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 289 DT_ATTR_EVOLCMN, DT_VERS_1_0, 290 &dt_idops_func, "int(genunix`kmutex_t *)" }, 291 { "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 292 &dt_idops_func, "uint32_t(uint32_t)" }, 293 { "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 294 &dt_idops_func, "uint64_t(uint64_t)" }, 295 { "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 296 &dt_idops_func, "uint16_t(uint16_t)" }, 297 { "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN, 298 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 299 { "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0, 300 &dt_idops_func, "void()" }, 301 { "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0, 302 &dt_idops_type, "pid_t" }, 303 { "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0, 304 &dt_idops_type, "pid_t" }, 305 { "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0, 306 &dt_idops_func, "void(@, ...)" }, 307 { "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0, 308 &dt_idops_func, "void(@, ...)" }, 309 { "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC, 310 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 311 { "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD, 312 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 313 { "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME, 314 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 315 { "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV, 316 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 317 { "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF, 318 DT_ATTR_STABCMN, DT_VERS_1_0, 319 &dt_idops_func, "int(pid_t)" }, 320 { "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE, 321 DT_ATTR_STABCMN, DT_VERS_1_0, 322 &dt_idops_func, "void(@, ...)" }, 323 { "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0, 324 &dt_idops_func, "void(int)" }, 325 { "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0, 326 &dt_idops_func, "int()" }, 327 { "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 328 &dt_idops_func, "int(const char *, const char *, [int])" }, 329 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 330 DT_ATTR_EVOLCMN, DT_VERS_1_0, 331 &dt_idops_func, "int(genunix`krwlock_t *)" }, 332 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 333 DT_ATTR_EVOLCMN, DT_VERS_1_0, 334 &dt_idops_func, "int(genunix`krwlock_t *)" }, 335 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 336 DT_ATTR_EVOLCMN, DT_VERS_1_0, 337 &dt_idops_func, "int(genunix`krwlock_t *)" }, 338 { "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 339 &dt_idops_type, "void" }, 340 { "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN, 341 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" }, 342 { "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE, 343 DT_ATTR_STABCMN, DT_VERS_1_0, 344 &dt_idops_func, "void(int)" }, 345 { "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION, 346 DT_ATTR_STABCMN, DT_VERS_1_0, 347 &dt_idops_func, "int()" }, 348 { "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0, 349 &dt_idops_func, "stack(...)" }, 350 { "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH, 351 DT_ATTR_STABCMN, DT_VERS_1_0, 352 &dt_idops_type, "uint32_t" }, 353 { "stddev", DT_IDENT_AGGFUNC, 0, DTRACEAGG_STDDEV, DT_ATTR_STABCMN, 354 DT_VERS_1_6, &dt_idops_func, "void(@)" }, 355 { "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0, 356 &dt_idops_func, "void()" }, 357 { "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 358 &dt_idops_func, "string(const char *, char)" }, 359 { "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0, 360 &dt_idops_func, "size_t(const char *)" }, 361 { "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0, 362 &dt_idops_func, "string(const char *, const char *)" }, 363 { "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 364 &dt_idops_func, "string(const char *, char)" }, 365 { "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 366 &dt_idops_func, "string(const char *, const char *)" }, 367 { "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1, 368 &dt_idops_func, "string(const char *, const char *)" }, 369 { "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 370 &dt_idops_func, "string(const char *, int, [int])" }, 371 { "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0, 372 &dt_idops_func, "void(@)" }, 373 { "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 374 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 375 { "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0, 376 &dt_idops_func, "void(@, ...)" }, 377 { "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 378 &dt_idops_type, "void" }, 379 { "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0, 380 &dt_idops_type, "id_t" }, 381 { "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP, 382 DT_ATTR_STABCMN, DT_VERS_1_0, 383 &dt_idops_type, "uint64_t" }, 384 { "tolower", DT_IDENT_FUNC, 0, DIF_SUBR_TOLOWER, DT_ATTR_STABCMN, DT_VERS_1_8, 385 &dt_idops_func, "string(const char *)" }, 386 { "toupper", DT_IDENT_FUNC, 0, DIF_SUBR_TOUPPER, DT_ATTR_STABCMN, DT_VERS_1_8, 387 &dt_idops_func, "string(const char *)" }, 388 { "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0, 389 &dt_idops_func, "void(@)" }, 390 { "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM, 391 DT_ATTR_STABCMN, DT_VERS_1_0, 392 &dt_idops_func, "void(@, size_t, ...)" }, 393 { "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN, 394 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 395 { "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN, 396 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 397 { "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN, 398 DT_VERS_1_2, &dt_idops_type, "uint64_t" }, 399 { "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 400 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 401 { "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0, 402 &dt_idops_type, "uid_t" }, 403 { "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN, 404 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 405 { "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0, 406 &dt_idops_regs, NULL }, 407 { "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 408 &dt_idops_func, "stack(...)" }, 409 { "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH, 410 DT_ATTR_STABCMN, DT_VERS_1_2, 411 &dt_idops_type, "uint32_t" }, 412 { "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 413 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 414 { "vmregs", DT_IDENT_ARRAY, 0, DIF_VAR_VMREGS, DT_ATTR_STABCMN, DT_VERS_1_7, 415 &dt_idops_regs, NULL }, 416 { "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP, 417 DT_ATTR_STABCMN, DT_VERS_1_0, 418 &dt_idops_type, "uint64_t" }, 419 { "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP, 420 DT_ATTR_STABCMN, DT_VERS_1_0, 421 &dt_idops_type, "int64_t" }, 422 { "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME, 423 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 424 { NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL } 425 }; 426 427 /* 428 * Tables of ILP32 intrinsic integer and floating-point type templates to use 429 * to populate the dynamic "C" CTF type container. 430 */ 431 static const dt_intrinsic_t _dtrace_intrinsics_32[] = { 432 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 433 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 434 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 435 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 436 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 437 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 438 { "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 439 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 440 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 441 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 442 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 443 { "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 444 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 445 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 446 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 447 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 448 { "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER }, 449 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 450 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 451 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 452 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 453 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 454 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 455 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 456 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 457 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 458 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 459 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 460 { NULL, { 0, 0, 0 }, 0 } 461 }; 462 463 /* 464 * Tables of LP64 intrinsic integer and floating-point type templates to use 465 * to populate the dynamic "C" CTF type container. 466 */ 467 static const dt_intrinsic_t _dtrace_intrinsics_64[] = { 468 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 469 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 470 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 471 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 472 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 473 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 474 { "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 475 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 476 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 477 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 478 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 479 { "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 480 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 481 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 482 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 483 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 484 { "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER }, 485 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 486 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 487 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 488 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 489 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 490 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 491 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 492 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 493 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 494 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 495 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 496 { NULL, { 0, 0, 0 }, 0 } 497 }; 498 499 /* 500 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container. 501 * These aliases ensure that D definitions can use typical <sys/types.h> names. 502 */ 503 static const dt_typedef_t _dtrace_typedefs_32[] = { 504 { "char", "int8_t" }, 505 { "short", "int16_t" }, 506 { "int", "int32_t" }, 507 { "long long", "int64_t" }, 508 { "int", "intptr_t" }, 509 { "int", "ssize_t" }, 510 { "unsigned char", "uint8_t" }, 511 { "unsigned short", "uint16_t" }, 512 { "unsigned", "uint32_t" }, 513 { "unsigned long long", "uint64_t" }, 514 { "unsigned char", "uchar_t" }, 515 { "unsigned short", "ushort_t" }, 516 { "unsigned", "uint_t" }, 517 { "unsigned long", "ulong_t" }, 518 { "unsigned long long", "u_longlong_t" }, 519 { "int", "ptrdiff_t" }, 520 { "unsigned", "uintptr_t" }, 521 { "unsigned", "size_t" }, 522 { "long", "id_t" }, 523 { "long", "pid_t" }, 524 { NULL, NULL } 525 }; 526 527 /* 528 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container. 529 * These aliases ensure that D definitions can use typical <sys/types.h> names. 530 */ 531 static const dt_typedef_t _dtrace_typedefs_64[] = { 532 { "char", "int8_t" }, 533 { "short", "int16_t" }, 534 { "int", "int32_t" }, 535 { "long", "int64_t" }, 536 { "long", "intptr_t" }, 537 { "long", "ssize_t" }, 538 { "unsigned char", "uint8_t" }, 539 { "unsigned short", "uint16_t" }, 540 { "unsigned", "uint32_t" }, 541 { "unsigned long", "uint64_t" }, 542 { "unsigned char", "uchar_t" }, 543 { "unsigned short", "ushort_t" }, 544 { "unsigned", "uint_t" }, 545 { "unsigned long", "ulong_t" }, 546 { "unsigned long long", "u_longlong_t" }, 547 { "long", "ptrdiff_t" }, 548 { "unsigned long", "uintptr_t" }, 549 { "unsigned long", "size_t" }, 550 { "int", "id_t" }, 551 { "int", "pid_t" }, 552 { NULL, NULL } 553 }; 554 555 /* 556 * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[] 557 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 558 */ 559 static const dt_intdesc_t _dtrace_ints_32[] = { 560 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 561 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 562 { "long", NULL, CTF_ERR, 0x7fffffffULL }, 563 { "unsigned long", NULL, CTF_ERR, 0xffffffffULL }, 564 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 565 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 566 }; 567 568 /* 569 * Tables of LP64 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_64[] = { 573 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 574 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 575 { "long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 576 { "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL }, 577 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 578 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 579 }; 580 581 /* 582 * Table of macro variable templates used to populate the macro identifier hash 583 * when a new dtrace client open occurs. Values are set by dtrace_update(). 584 */ 585 static const dt_ident_t _dtrace_macros[] = { 586 { "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 587 { "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 588 { "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 589 { "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 590 { "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 591 { "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 592 { "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 593 { "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 594 { "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 595 { "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 596 { "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 597 { NULL, 0, 0, 0, { 0, 0, 0 }, 0 } 598 }; 599 600 /* 601 * Hard-wired definition string to be compiled and cached every time a new 602 * DTrace library handle is initialized. This string should only be used to 603 * contain definitions that should be present regardless of DTRACE_O_NOLIBS. 604 */ 605 static const char _dtrace_hardwire[] = "\ 606 inline long NULL = 0; \n\ 607 #pragma D binding \"1.0\" NULL\n\ 608 "; 609 610 /* 611 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV. 612 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel. 613 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are 614 * relying on the fact that when running dtrace(1M), isaexec will invoke the 615 * binary with the same bitness as the kernel, which is what we want by default 616 * when generating our DIF. The user can override the choice using oflags. 617 */ 618 static const dtrace_conf_t _dtrace_conf = { 619 DIF_VERSION, /* dtc_difversion */ 620 DIF_DIR_NREGS, /* dtc_difintregs */ 621 DIF_DTR_NREGS, /* dtc_diftupregs */ 622 CTF_MODEL_NATIVE /* dtc_ctfmodel */ 623 }; 624 625 const dtrace_attribute_t _dtrace_maxattr = { 626 DTRACE_STABILITY_MAX, 627 DTRACE_STABILITY_MAX, 628 DTRACE_CLASS_MAX 629 }; 630 631 const dtrace_attribute_t _dtrace_defattr = { 632 DTRACE_STABILITY_STABLE, 633 DTRACE_STABILITY_STABLE, 634 DTRACE_CLASS_COMMON 635 }; 636 637 const dtrace_attribute_t _dtrace_symattr = { 638 DTRACE_STABILITY_PRIVATE, 639 DTRACE_STABILITY_PRIVATE, 640 DTRACE_CLASS_UNKNOWN 641 }; 642 643 const dtrace_attribute_t _dtrace_typattr = { 644 DTRACE_STABILITY_PRIVATE, 645 DTRACE_STABILITY_PRIVATE, 646 DTRACE_CLASS_UNKNOWN 647 }; 648 649 const dtrace_attribute_t _dtrace_prvattr = { 650 DTRACE_STABILITY_PRIVATE, 651 DTRACE_STABILITY_PRIVATE, 652 DTRACE_CLASS_UNKNOWN 653 }; 654 655 const dtrace_pattr_t _dtrace_prvdesc = { 656 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 657 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 658 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 659 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 660 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 661 }; 662 663 const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */ 664 const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */ 665 666 const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */ 667 const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */ 668 669 int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */ 670 int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */ 671 uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */ 672 uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */ 673 uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */ 674 uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */ 675 size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */ 676 int _dtrace_argmax = 32; /* default maximum number of probe arguments */ 677 678 int _dtrace_debug = 0; /* debug messages enabled (off) */ 679 const char *const _dtrace_version = DT_VERS_STRING; /* API version string */ 680 int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */ 681 682 typedef struct dt_fdlist { 683 int *df_fds; /* array of provider driver file descriptors */ 684 uint_t df_ents; /* number of valid elements in df_fds[] */ 685 uint_t df_size; /* size of df_fds[] */ 686 } dt_fdlist_t; 687 688 #pragma init(_dtrace_init) 689 void 690 _dtrace_init(void) 691 { 692 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL; 693 694 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) { 695 if (rd_init(_dtrace_rdvers) == RD_OK) 696 break; 697 } 698 } 699 700 static dtrace_hdl_t * 701 set_open_errno(dtrace_hdl_t *dtp, int *errp, int err) 702 { 703 if (dtp != NULL) 704 dtrace_close(dtp); 705 if (errp != NULL) 706 *errp = err; 707 return (NULL); 708 } 709 710 static void 711 dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp) 712 { 713 dt_provmod_t *prov; 714 char path[PATH_MAX]; 715 struct dirent *dp, *ep; 716 DIR *dirp; 717 int fd; 718 719 if ((dirp = opendir(_dtrace_provdir)) == NULL) 720 return; /* failed to open directory; just skip it */ 721 722 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1); 723 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1); 724 725 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) { 726 if (dp->d_name[0] == '.') 727 continue; /* skip "." and ".." */ 728 729 if (dfp->df_ents == dfp->df_size) { 730 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 731 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 732 733 if (fds == NULL) 734 break; /* skip the rest of this directory */ 735 736 dfp->df_fds = fds; 737 dfp->df_size = size; 738 } 739 740 (void) snprintf(path, sizeof (path), "%s/%s", 741 _dtrace_provdir, dp->d_name); 742 743 if ((fd = open(path, O_RDONLY)) == -1) 744 continue; /* failed to open driver; just skip it */ 745 746 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 747 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) { 748 free(prov); 749 (void) close(fd); 750 break; 751 } 752 753 (void) strcpy(prov->dp_name, dp->d_name); 754 prov->dp_next = *provmod; 755 *provmod = prov; 756 757 dt_dprintf("opened provider %s\n", dp->d_name); 758 dfp->df_fds[dfp->df_ents++] = fd; 759 } 760 761 (void) closedir(dirp); 762 } 763 764 static void 765 dt_provmod_destroy(dt_provmod_t **provmod) 766 { 767 dt_provmod_t *next, *current; 768 769 for (current = *provmod; current != NULL; current = next) { 770 next = current->dp_next; 771 free(current->dp_name); 772 free(current); 773 } 774 775 *provmod = NULL; 776 } 777 778 static const char * 779 dt_get_sysinfo(int cmd, char *buf, size_t len) 780 { 781 ssize_t rv = sysinfo(cmd, buf, len); 782 char *p = buf; 783 784 if (rv < 0 || rv > len) 785 (void) snprintf(buf, len, "%s", "Unknown"); 786 787 while ((p = strchr(p, '.')) != NULL) 788 *p++ = '_'; 789 790 return (buf); 791 } 792 793 static dtrace_hdl_t * 794 dt_vopen(int version, int flags, int *errp, 795 const dtrace_vector_t *vector, void *arg) 796 { 797 dtrace_hdl_t *dtp = NULL; 798 int dtfd = -1, ftfd = -1, fterr = 0; 799 dtrace_prog_t *pgp; 800 dt_module_t *dmp; 801 dt_provmod_t *provmod = NULL; 802 int i, err; 803 struct rlimit rl; 804 805 const dt_intrinsic_t *dinp; 806 const dt_typedef_t *dtyp; 807 const dt_ident_t *idp; 808 809 dtrace_typeinfo_t dtt; 810 ctf_funcinfo_t ctc; 811 ctf_arinfo_t ctr; 812 813 dt_fdlist_t df = { NULL, 0, 0 }; 814 815 char isadef[32], utsdef[32]; 816 char s1[64], s2[64]; 817 818 if (version <= 0) 819 return (set_open_errno(dtp, errp, EINVAL)); 820 821 if (version > DTRACE_VERSION) 822 return (set_open_errno(dtp, errp, EDT_VERSION)); 823 824 if (version < DTRACE_VERSION) { 825 /* 826 * Currently, increasing the library version number is used to 827 * denote a binary incompatible change. That is, a consumer 828 * of the library cannot run on a version of the library with 829 * a higher DTRACE_VERSION number than the consumer compiled 830 * against. Once the library API has been committed to, 831 * backwards binary compatibility will be required; at that 832 * time, this check should change to return EDT_OVERSION only 833 * if the specified version number is less than the version 834 * number at the time of interface commitment. 835 */ 836 return (set_open_errno(dtp, errp, EDT_OVERSION)); 837 } 838 839 if (flags & ~DTRACE_O_MASK) 840 return (set_open_errno(dtp, errp, EINVAL)); 841 842 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32)) 843 return (set_open_errno(dtp, errp, EINVAL)); 844 845 if (vector == NULL && arg != NULL) 846 return (set_open_errno(dtp, errp, EINVAL)); 847 848 if (elf_version(EV_CURRENT) == EV_NONE) 849 return (set_open_errno(dtp, errp, EDT_ELFVERSION)); 850 851 if (vector != NULL || (flags & DTRACE_O_NODEV)) 852 goto alloc; /* do not attempt to open dtrace device */ 853 854 /* 855 * Before we get going, crank our limit on file descriptors up to the 856 * hard limit. This is to allow for the fact that libproc keeps file 857 * descriptors to objects open for the lifetime of the proc handle; 858 * without raising our hard limit, we would have an acceptably small 859 * bound on the number of processes that we could concurrently 860 * instrument with the pid provider. 861 */ 862 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) { 863 rl.rlim_cur = rl.rlim_max; 864 (void) setrlimit(RLIMIT_NOFILE, &rl); 865 } 866 867 /* 868 * Get the device path of each of the providers. We hold them open 869 * in the df.df_fds list until we open the DTrace driver itself, 870 * allowing us to see all of the probes provided on this system. Once 871 * we have the DTrace driver open, we can safely close all the providers 872 * now that they have registered with the framework. 873 */ 874 dt_provmod_open(&provmod, &df); 875 876 dtfd = open("/dev/dtrace/dtrace", O_RDWR); 877 err = errno; /* save errno from opening dtfd */ 878 879 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR); 880 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */ 881 882 while (df.df_ents-- != 0) 883 (void) close(df.df_fds[df.df_ents]); 884 885 free(df.df_fds); 886 887 /* 888 * If we failed to open the dtrace device, fail dtrace_open(). 889 * We convert some kernel errnos to custom libdtrace errnos to 890 * improve the resulting message from the usual strerror(). 891 */ 892 if (dtfd == -1) { 893 dt_provmod_destroy(&provmod); 894 switch (err) { 895 case ENOENT: 896 err = EDT_NOENT; 897 break; 898 case EBUSY: 899 err = EDT_BUSY; 900 break; 901 case EACCES: 902 err = EDT_ACCESS; 903 break; 904 } 905 return (set_open_errno(dtp, errp, err)); 906 } 907 908 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC); 909 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC); 910 911 alloc: 912 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL) 913 return (set_open_errno(dtp, errp, EDT_NOMEM)); 914 915 bzero(dtp, sizeof (dtrace_hdl_t)); 916 dtp->dt_oflags = flags; 917 dtp->dt_prcmode = DT_PROC_STOP_PREINIT; 918 dtp->dt_linkmode = DT_LINK_KERNEL; 919 dtp->dt_linktype = DT_LTYP_ELF; 920 dtp->dt_xlatemode = DT_XL_STATIC; 921 dtp->dt_stdcmode = DT_STDC_XA; 922 dtp->dt_version = version; 923 dtp->dt_fd = dtfd; 924 dtp->dt_ftfd = ftfd; 925 dtp->dt_fterr = fterr; 926 dtp->dt_cdefs_fd = -1; 927 dtp->dt_ddefs_fd = -1; 928 dtp->dt_stdout_fd = -1; 929 dtp->dt_modbuckets = _dtrace_strbuckets; 930 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *)); 931 dtp->dt_provbuckets = _dtrace_strbuckets; 932 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *)); 933 dt_proc_hash_create(dtp); 934 dtp->dt_vmax = DT_VERS_LATEST; 935 dtp->dt_cpp_path = strdup(_dtrace_defcpp); 936 dtp->dt_cpp_argv = malloc(sizeof (char *)); 937 dtp->dt_cpp_argc = 1; 938 dtp->dt_cpp_args = 1; 939 dtp->dt_ld_path = strdup(_dtrace_defld); 940 dtp->dt_provmod = provmod; 941 dtp->dt_vector = vector; 942 dtp->dt_varg = arg; 943 dt_dof_init(dtp); 944 (void) uname(&dtp->dt_uts); 945 946 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL || 947 dtp->dt_procs == NULL || dtp->dt_ld_path == NULL || 948 dtp->dt_cpp_path == NULL || dtp->dt_cpp_argv == NULL) 949 return (set_open_errno(dtp, errp, EDT_NOMEM)); 950 951 for (i = 0; i < DTRACEOPT_MAX; i++) 952 dtp->dt_options[i] = DTRACEOPT_UNSET; 953 954 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path); 955 956 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u", 957 (uint_t)(sizeof (void *) * NBBY)); 958 959 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s", 960 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)), 961 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2))); 962 963 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL || 964 dt_cpp_add_arg(dtp, "-D__unix") == NULL || 965 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL || 966 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL || 967 dt_cpp_add_arg(dtp, isadef) == NULL || 968 dt_cpp_add_arg(dtp, utsdef) == NULL) 969 return (set_open_errno(dtp, errp, EDT_NOMEM)); 970 971 if (flags & DTRACE_O_NODEV) 972 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf)); 973 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0) 974 return (set_open_errno(dtp, errp, errno)); 975 976 if (flags & DTRACE_O_LP64) 977 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64; 978 else if (flags & DTRACE_O_ILP32) 979 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32; 980 981 #ifdef __sparc 982 /* 983 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h> 984 * and __sparcv9 is defined if we are doing a 64-bit compile. 985 */ 986 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL) 987 return (set_open_errno(dtp, errp, EDT_NOMEM)); 988 989 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 && 990 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL) 991 return (set_open_errno(dtp, errp, EDT_NOMEM)); 992 #endif 993 994 #ifdef __x86 995 /* 996 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit 997 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC, 998 * they are defined exclusive of one another (see PSARC 2004/619). 999 */ 1000 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 1001 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL) 1002 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1003 } else { 1004 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL) 1005 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1006 } 1007 #endif 1008 1009 if (dtp->dt_conf.dtc_difversion < DIF_VERSION) 1010 return (set_open_errno(dtp, errp, EDT_DIFVERS)); 1011 1012 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) 1013 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32)); 1014 else 1015 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64)); 1016 1017 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX); 1018 dtp->dt_aggs = dt_idhash_create("aggregation", NULL, 1019 DTRACE_AGGVARIDNONE + 1, UINT_MAX); 1020 1021 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals, 1022 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1023 1024 dtp->dt_tls = dt_idhash_create("thread local", NULL, 1025 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1026 1027 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL || 1028 dtp->dt_globals == NULL || dtp->dt_tls == NULL) 1029 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1030 1031 /* 1032 * Populate the dt_macros identifier hash table by hand: we can't use 1033 * the dt_idhash_populate() mechanism because we're not yet compiling 1034 * and dtrace_update() needs to immediately reference these idents. 1035 */ 1036 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) { 1037 if (dt_idhash_insert(dtp->dt_macros, idp->di_name, 1038 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr, 1039 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw, 1040 idp->di_iarg, 0) == NULL) 1041 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1042 } 1043 1044 /* 1045 * Update the module list using /system/object and load the values for 1046 * the macro variable definitions according to the current process. 1047 */ 1048 dtrace_update(dtp); 1049 1050 /* 1051 * Select the intrinsics and typedefs we want based on the data model. 1052 * The intrinsics are under "C". The typedefs are added under "D". 1053 */ 1054 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) { 1055 dinp = _dtrace_intrinsics_32; 1056 dtyp = _dtrace_typedefs_32; 1057 } else { 1058 dinp = _dtrace_intrinsics_64; 1059 dtyp = _dtrace_typedefs_64; 1060 } 1061 1062 /* 1063 * Create a dynamic CTF container under the "C" scope for intrinsic 1064 * types and types defined in ANSI-C header files that are included. 1065 */ 1066 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL) 1067 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1068 1069 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1070 return (set_open_errno(dtp, errp, EDT_CTF)); 1071 1072 dt_dprintf("created CTF container for %s (%p)\n", 1073 dmp->dm_name, (void *)dmp->dm_ctfp); 1074 1075 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1076 ctf_setspecific(dmp->dm_ctfp, dmp); 1077 1078 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1079 dmp->dm_modid = -1; /* no module ID */ 1080 1081 /* 1082 * Fill the dynamic "C" CTF container with all of the intrinsic 1083 * integer and floating-point types appropriate for this data model. 1084 */ 1085 for (; dinp->din_name != NULL; dinp++) { 1086 if (dinp->din_kind == CTF_K_INTEGER) { 1087 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT, 1088 dinp->din_name, &dinp->din_data); 1089 } else { 1090 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT, 1091 dinp->din_name, &dinp->din_data); 1092 } 1093 1094 if (err == CTF_ERR) { 1095 dt_dprintf("failed to add %s to C container: %s\n", 1096 dinp->din_name, ctf_errmsg( 1097 ctf_errno(dmp->dm_ctfp))); 1098 return (set_open_errno(dtp, errp, EDT_CTF)); 1099 } 1100 } 1101 1102 if (ctf_update(dmp->dm_ctfp) != 0) { 1103 dt_dprintf("failed to update C container: %s\n", 1104 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1105 return (set_open_errno(dtp, errp, EDT_CTF)); 1106 } 1107 1108 /* 1109 * Add intrinsic pointer types that are needed to initialize printf 1110 * format dictionary types (see table in dt_printf.c). 1111 */ 1112 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1113 ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1114 1115 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1116 ctf_lookup_by_name(dmp->dm_ctfp, "char")); 1117 1118 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1119 ctf_lookup_by_name(dmp->dm_ctfp, "int")); 1120 1121 if (ctf_update(dmp->dm_ctfp) != 0) { 1122 dt_dprintf("failed to update C container: %s\n", 1123 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1124 return (set_open_errno(dtp, errp, EDT_CTF)); 1125 } 1126 1127 /* 1128 * Create a dynamic CTF container under the "D" scope for types that 1129 * are defined by the D program itself or on-the-fly by the D compiler. 1130 * The "D" CTF container is a child of the "C" CTF container. 1131 */ 1132 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL) 1133 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1134 1135 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1136 return (set_open_errno(dtp, errp, EDT_CTF)); 1137 1138 dt_dprintf("created CTF container for %s (%p)\n", 1139 dmp->dm_name, (void *)dmp->dm_ctfp); 1140 1141 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1142 ctf_setspecific(dmp->dm_ctfp, dmp); 1143 1144 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1145 dmp->dm_modid = -1; /* no module ID */ 1146 1147 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) { 1148 dt_dprintf("failed to import D parent container: %s\n", 1149 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1150 return (set_open_errno(dtp, errp, EDT_CTF)); 1151 } 1152 1153 /* 1154 * Fill the dynamic "D" CTF container with all of the built-in typedefs 1155 * that we need to use for our D variable and function definitions. 1156 * This ensures that basic inttypes.h names are always available to us. 1157 */ 1158 for (; dtyp->dty_src != NULL; dtyp++) { 1159 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1160 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp, 1161 dtyp->dty_src)) == CTF_ERR) { 1162 dt_dprintf("failed to add typedef %s %s to D " 1163 "container: %s", dtyp->dty_src, dtyp->dty_dst, 1164 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1165 return (set_open_errno(dtp, errp, EDT_CTF)); 1166 } 1167 } 1168 1169 /* 1170 * Insert a CTF ID corresponding to a pointer to a type of kind 1171 * CTF_K_FUNCTION we can use in the compiler for function pointers. 1172 * CTF treats all function pointers as "int (*)()" so we only need one. 1173 */ 1174 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int"); 1175 ctc.ctc_argc = 0; 1176 ctc.ctc_flags = 0; 1177 1178 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp, 1179 CTF_ADD_ROOT, &ctc, NULL); 1180 1181 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp, 1182 CTF_ADD_ROOT, dtp->dt_type_func); 1183 1184 /* 1185 * We also insert CTF definitions for the special D intrinsic types 1186 * string and <DYN> into the D container. The string type is added 1187 * as a typedef of char[n]. The <DYN> type is an alias for void. 1188 * We compare types to these special CTF ids throughout the compiler. 1189 */ 1190 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char"); 1191 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long"); 1192 ctr.ctr_nelems = _dtrace_strsize; 1193 1194 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1195 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr)); 1196 1197 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1198 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1199 1200 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1201 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1202 1203 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1204 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1205 1206 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1207 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1208 1209 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR || 1210 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR || 1211 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR || 1212 dtp->dt_type_usymaddr == CTF_ERR) { 1213 dt_dprintf("failed to add intrinsic to D container: %s\n", 1214 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1215 return (set_open_errno(dtp, errp, EDT_CTF)); 1216 } 1217 1218 if (ctf_update(dmp->dm_ctfp) != 0) { 1219 dt_dprintf("failed update D container: %s\n", 1220 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1221 return (set_open_errno(dtp, errp, EDT_CTF)); 1222 } 1223 1224 /* 1225 * Initialize the integer description table used to convert integer 1226 * constants to the appropriate types. Refer to the comments above 1227 * dt_node_int() for a complete description of how this table is used. 1228 */ 1229 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) { 1230 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY, 1231 dtp->dt_ints[i].did_name, &dtt) != 0) { 1232 dt_dprintf("failed to lookup integer type %s: %s\n", 1233 dtp->dt_ints[i].did_name, 1234 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1235 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1236 } 1237 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp; 1238 dtp->dt_ints[i].did_type = dtt.dtt_type; 1239 } 1240 1241 /* 1242 * Now that we've created the "C" and "D" containers, move them to the 1243 * start of the module list so that these types and symbols are found 1244 * first (for stability) when iterating through the module list. 1245 */ 1246 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs); 1247 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs); 1248 1249 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs); 1250 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs); 1251 1252 if (dt_pfdict_create(dtp) == -1) 1253 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1254 1255 /* 1256 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default 1257 * because without /dev/dtrace open, we will not be able to load the 1258 * names and attributes of any providers or probes from the kernel. 1259 */ 1260 if (flags & DTRACE_O_NODEV) 1261 dtp->dt_cflags |= DTRACE_C_ZDEFS; 1262 1263 /* 1264 * Load hard-wired inlines into the definition cache by calling the 1265 * compiler on the raw definition string defined above. 1266 */ 1267 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire, 1268 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) { 1269 dt_dprintf("failed to load hard-wired definitions: %s\n", 1270 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1271 return (set_open_errno(dtp, errp, EDT_HARDWIRE)); 1272 } 1273 1274 dt_program_destroy(dtp, pgp); 1275 1276 /* 1277 * Set up the default DTrace library path. Once set, the next call to 1278 * dt_compile() will compile all the libraries. We intentionally defer 1279 * library processing to improve overhead for clients that don't ever 1280 * compile, and to provide better error reporting (because the full 1281 * reporting of compiler errors requires dtrace_open() to succeed). 1282 */ 1283 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0) 1284 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1285 1286 return (dtp); 1287 } 1288 1289 dtrace_hdl_t * 1290 dtrace_open(int version, int flags, int *errp) 1291 { 1292 return (dt_vopen(version, flags, errp, NULL, NULL)); 1293 } 1294 1295 dtrace_hdl_t * 1296 dtrace_vopen(int version, int flags, int *errp, 1297 const dtrace_vector_t *vector, void *arg) 1298 { 1299 return (dt_vopen(version, flags, errp, vector, arg)); 1300 } 1301 1302 void 1303 dtrace_close(dtrace_hdl_t *dtp) 1304 { 1305 dt_ident_t *idp, *ndp; 1306 dt_module_t *dmp; 1307 dt_provider_t *pvp; 1308 dtrace_prog_t *pgp; 1309 dt_xlator_t *dxp; 1310 dt_dirpath_t *dirp; 1311 int i; 1312 1313 if (dtp->dt_procs != NULL) 1314 dt_proc_hash_destroy(dtp); 1315 1316 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL) 1317 dt_program_destroy(dtp, pgp); 1318 1319 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL) 1320 dt_xlator_destroy(dtp, dxp); 1321 1322 dt_free(dtp, dtp->dt_xlatormap); 1323 1324 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) { 1325 ndp = idp->di_next; 1326 dt_ident_destroy(idp); 1327 } 1328 1329 if (dtp->dt_macros != NULL) 1330 dt_idhash_destroy(dtp->dt_macros); 1331 if (dtp->dt_aggs != NULL) 1332 dt_idhash_destroy(dtp->dt_aggs); 1333 if (dtp->dt_globals != NULL) 1334 dt_idhash_destroy(dtp->dt_globals); 1335 if (dtp->dt_tls != NULL) 1336 dt_idhash_destroy(dtp->dt_tls); 1337 1338 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL) 1339 dt_module_destroy(dtp, dmp); 1340 1341 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL) 1342 dt_provider_destroy(dtp, pvp); 1343 1344 if (dtp->dt_fd != -1) 1345 (void) close(dtp->dt_fd); 1346 if (dtp->dt_ftfd != -1) 1347 (void) close(dtp->dt_ftfd); 1348 if (dtp->dt_cdefs_fd != -1) 1349 (void) close(dtp->dt_cdefs_fd); 1350 if (dtp->dt_ddefs_fd != -1) 1351 (void) close(dtp->dt_ddefs_fd); 1352 if (dtp->dt_stdout_fd != -1) 1353 (void) close(dtp->dt_stdout_fd); 1354 1355 dt_epid_destroy(dtp); 1356 dt_aggid_destroy(dtp); 1357 dt_format_destroy(dtp); 1358 dt_buffered_destroy(dtp); 1359 dt_aggregate_destroy(dtp); 1360 free(dtp->dt_buf.dtbd_data); 1361 dt_pfdict_destroy(dtp); 1362 dt_provmod_destroy(&dtp->dt_provmod); 1363 dt_dof_fini(dtp); 1364 1365 for (i = 1; i < dtp->dt_cpp_argc; i++) 1366 free(dtp->dt_cpp_argv[i]); 1367 1368 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) { 1369 dt_list_delete(&dtp->dt_lib_path, dirp); 1370 free(dirp->dir_path); 1371 free(dirp); 1372 } 1373 1374 free(dtp->dt_cpp_argv); 1375 free(dtp->dt_cpp_path); 1376 free(dtp->dt_ld_path); 1377 1378 free(dtp->dt_mods); 1379 free(dtp->dt_provs); 1380 free(dtp); 1381 } 1382 1383 int 1384 dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods) 1385 { 1386 dt_provmod_t *prov; 1387 int i = 0; 1388 1389 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) { 1390 if (i < nmods) 1391 mods[i] = prov->dp_name; 1392 } 1393 1394 return (i); 1395 } 1396 1397 int 1398 dtrace_ctlfd(dtrace_hdl_t *dtp) 1399 { 1400 return (dtp->dt_fd); 1401 } 1402