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_1_8_1 DT_VERSION_NUMBER(1, 8, 1) 111 #define DT_VERS_LATEST DT_VERS_1_8_1 112 #define DT_VERS_STRING "Sun D 1.8.1" 113 114 const dt_version_t _dtrace_versions[] = { 115 DT_VERS_1_0, /* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */ 116 DT_VERS_1_1, /* D API 1.1.0 Solaris Express 6/05 */ 117 DT_VERS_1_2, /* D API 1.2.0 Solaris 10 Update 1 */ 118 DT_VERS_1_2_1, /* D API 1.2.1 Solaris Express 4/06 */ 119 DT_VERS_1_2_2, /* D API 1.2.2 Solaris Express 6/06 */ 120 DT_VERS_1_3, /* D API 1.3 Solaris Express 10/06 */ 121 DT_VERS_1_4, /* D API 1.4 Solaris Express 2/07 */ 122 DT_VERS_1_4_1, /* D API 1.4.1 Solaris Express 4/07 */ 123 DT_VERS_1_5, /* D API 1.5 Solaris Express 7/07 */ 124 DT_VERS_1_6, /* D API 1.6 */ 125 DT_VERS_1_6_1, /* D API 1.6.1 */ 126 DT_VERS_1_6_2, /* D API 1.6.2 */ 127 DT_VERS_1_6_3, /* D API 1.6.3 */ 128 DT_VERS_1_7, /* D API 1.7 */ 129 DT_VERS_1_7_1, /* D API 1.7.1 */ 130 DT_VERS_1_8, /* D API 1.8 */ 131 DT_VERS_1_8_1, /* D API 1.8.1 */ 132 0 133 }; 134 135 /* 136 * Table of global identifiers. This is used to populate the global identifier 137 * hash when a new dtrace client open occurs. For more info see dt_ident.h. 138 * The global identifiers that represent functions use the dt_idops_func ops 139 * and specify the private data pointer as a prototype string which is parsed 140 * when the identifier is first encountered. These prototypes look like ANSI 141 * C function prototypes except that the special symbol "@" can be used as a 142 * wildcard to represent a single parameter of any type (i.e. any dt_node_t). 143 * The standard "..." notation can also be used to represent varargs. An empty 144 * parameter list is taken to mean void (that is, no arguments are permitted). 145 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional 146 * argument. 147 */ 148 static const dt_ident_t _dtrace_globals[] = { 149 { "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0, 150 &dt_idops_func, "void *(size_t)" }, 151 { "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0, 152 &dt_idops_type, "int64_t" }, 153 { "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0, 154 &dt_idops_type, "int64_t" }, 155 { "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0, 156 &dt_idops_type, "int64_t" }, 157 { "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0, 158 &dt_idops_type, "int64_t" }, 159 { "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0, 160 &dt_idops_type, "int64_t" }, 161 { "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0, 162 &dt_idops_type, "int64_t" }, 163 { "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0, 164 &dt_idops_type, "int64_t" }, 165 { "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0, 166 &dt_idops_type, "int64_t" }, 167 { "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0, 168 &dt_idops_type, "int64_t" }, 169 { "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0, 170 &dt_idops_type, "int64_t" }, 171 { "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0, 172 &dt_idops_args, NULL }, 173 { "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0, 174 &dt_idops_func, "void(@)" }, 175 { "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0, 176 &dt_idops_func, "string(const char *)" }, 177 { "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0, 178 &dt_idops_func, "void(void *, void *, size_t)" }, 179 { "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT, 180 DT_ATTR_STABCMN, DT_VERS_1_0, 181 &dt_idops_func, "void()" }, 182 { "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0, 183 &dt_idops_type, "uintptr_t" }, 184 { "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0, 185 &dt_idops_func, "void(int)" }, 186 { "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN, 187 DT_VERS_1_0, &dt_idops_func, "string(const char *)" }, 188 { "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0, 189 &dt_idops_func, "void(...)" }, 190 { "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0, 191 &dt_idops_func, "void(int)" }, 192 { "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0, 193 &dt_idops_func, "void *(uintptr_t, size_t)" }, 194 { "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR, 195 DT_ATTR_STABCMN, DT_VERS_1_0, 196 &dt_idops_func, "string(uintptr_t, [size_t])" }, 197 { "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN, 198 DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" }, 199 { "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0, 200 &dt_idops_func, "void(void *, uintptr_t, size_t)" }, 201 { "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR, 202 DT_ATTR_STABCMN, DT_VERS_1_0, 203 &dt_idops_func, "void(char *, uintptr_t, size_t)" }, 204 { "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0, 205 &dt_idops_func, "void()" }, 206 { "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD, 207 { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE, 208 DTRACE_CLASS_COMMON }, DT_VERS_1_0, 209 &dt_idops_type, "genunix`kthread_t *" }, 210 { "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME, 211 DT_ATTR_EVOLCMN, DT_VERS_1_0, 212 &dt_idops_func, "string(void *, int64_t)" }, 213 { "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN, 214 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 215 { "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0, 216 &dt_idops_func, "string(const char *)" }, 217 { "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0, 218 &dt_idops_func, "void(int)" }, 219 { "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0, 220 &dt_idops_type, "uint_t" }, 221 { "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0, 222 &dt_idops_type, "int" }, 223 { "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME, 224 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 225 { "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0, 226 &dt_idops_func, "void(int)" }, 227 { "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN, 228 DT_VERS_1_1, &dt_idops_func, "void(@, ...)" }, 229 { "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN, 230 DT_VERS_1_0, &dt_idops_func, "void()" }, 231 { "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 232 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 233 { "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR, 234 DT_ATTR_EVOLCMN, DT_VERS_1_0, 235 &dt_idops_func, "genunix`major_t(genunix`dev_t)" }, 236 { "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR, 237 DT_ATTR_EVOLCMN, DT_VERS_1_0, 238 &dt_idops_func, "genunix`minor_t(genunix`dev_t)" }, 239 { "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 240 &dt_idops_func, "uint32_t(uint32_t)" }, 241 { "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 242 &dt_idops_func, "uint64_t(uint64_t)" }, 243 { "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 244 &dt_idops_func, "uint16_t(uint16_t)" }, 245 { "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0, 246 &dt_idops_type, "gid_t" }, 247 { "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0, 248 &dt_idops_type, "uint_t" }, 249 { "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 250 &dt_idops_func, "int(const char *, const char *, [int])" }, 251 { "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN, 252 DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" }, 253 { "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN, 254 DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" }, 255 { "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN, 256 DT_VERS_1_5, &dt_idops_func, "string(int, void *)" }, 257 { "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0, 258 &dt_idops_type, "uint_t" }, 259 { "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 260 &dt_idops_func, "stack(...)" }, 261 { "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0, 262 &dt_idops_func, "string(int64_t, [int])" }, 263 { "llquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LLQUANTIZE, DT_ATTR_STABCMN, 264 DT_VERS_1_7, &dt_idops_func, 265 "void(@, int32_t, int32_t, int32_t, int32_t, ...)" }, 266 { "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE, 267 DT_ATTR_STABCMN, DT_VERS_1_0, 268 &dt_idops_func, "void(@, int32_t, int32_t, ...)" }, 269 { "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0, 270 &dt_idops_func, "void(@)" }, 271 { "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0, 272 &dt_idops_func, "void(@)" }, 273 { "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN, 274 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 275 { "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE, 276 DT_ATTR_STABCMN, DT_VERS_1_0, 277 &dt_idops_func, "size_t(mblk_t *)" }, 278 { "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE, 279 DT_ATTR_STABCMN, DT_VERS_1_0, 280 &dt_idops_func, "size_t(mblk_t *)" }, 281 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 282 DT_ATTR_EVOLCMN, DT_VERS_1_0, 283 &dt_idops_func, "int(genunix`kmutex_t *)" }, 284 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 285 DT_ATTR_EVOLCMN, DT_VERS_1_0, 286 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" }, 287 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 288 DT_ATTR_EVOLCMN, DT_VERS_1_0, 289 &dt_idops_func, "int(genunix`kmutex_t *)" }, 290 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 291 DT_ATTR_EVOLCMN, DT_VERS_1_0, 292 &dt_idops_func, "int(genunix`kmutex_t *)" }, 293 { "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 294 &dt_idops_func, "uint32_t(uint32_t)" }, 295 { "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 296 &dt_idops_func, "uint64_t(uint64_t)" }, 297 { "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 298 &dt_idops_func, "uint16_t(uint16_t)" }, 299 { "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN, 300 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 301 { "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0, 302 &dt_idops_func, "void()" }, 303 { "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0, 304 &dt_idops_type, "pid_t" }, 305 { "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0, 306 &dt_idops_type, "pid_t" }, 307 { "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0, 308 &dt_idops_func, "void(@, ...)" }, 309 { "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0, 310 &dt_idops_func, "void(@, ...)" }, 311 { "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC, 312 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 313 { "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD, 314 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 315 { "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME, 316 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 317 { "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV, 318 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 319 { "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF, 320 DT_ATTR_STABCMN, DT_VERS_1_0, 321 &dt_idops_func, "int(pid_t)" }, 322 { "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE, 323 DT_ATTR_STABCMN, DT_VERS_1_0, 324 &dt_idops_func, "void(@, ...)" }, 325 { "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0, 326 &dt_idops_func, "void(int)" }, 327 { "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0, 328 &dt_idops_func, "int()" }, 329 { "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 330 &dt_idops_func, "int(const char *, const char *, [int])" }, 331 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 332 DT_ATTR_EVOLCMN, DT_VERS_1_0, 333 &dt_idops_func, "int(genunix`krwlock_t *)" }, 334 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 335 DT_ATTR_EVOLCMN, DT_VERS_1_0, 336 &dt_idops_func, "int(genunix`krwlock_t *)" }, 337 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 338 DT_ATTR_EVOLCMN, DT_VERS_1_0, 339 &dt_idops_func, "int(genunix`krwlock_t *)" }, 340 { "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 341 &dt_idops_type, "void" }, 342 { "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN, 343 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" }, 344 { "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE, 345 DT_ATTR_STABCMN, DT_VERS_1_0, 346 &dt_idops_func, "void(int)" }, 347 { "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION, 348 DT_ATTR_STABCMN, DT_VERS_1_0, 349 &dt_idops_func, "int()" }, 350 { "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0, 351 &dt_idops_func, "stack(...)" }, 352 { "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH, 353 DT_ATTR_STABCMN, DT_VERS_1_0, 354 &dt_idops_type, "uint32_t" }, 355 { "stddev", DT_IDENT_AGGFUNC, 0, DTRACEAGG_STDDEV, DT_ATTR_STABCMN, 356 DT_VERS_1_6, &dt_idops_func, "void(@)" }, 357 { "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0, 358 &dt_idops_func, "void()" }, 359 { "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 360 &dt_idops_func, "string(const char *, char)" }, 361 { "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0, 362 &dt_idops_func, "size_t(const char *)" }, 363 { "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0, 364 &dt_idops_func, "string(const char *, const char *)" }, 365 { "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 366 &dt_idops_func, "string(const char *, char)" }, 367 { "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 368 &dt_idops_func, "string(const char *, const char *)" }, 369 { "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1, 370 &dt_idops_func, "string(const char *, const char *)" }, 371 { "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 372 &dt_idops_func, "string(const char *, int, [int])" }, 373 { "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0, 374 &dt_idops_func, "void(@)" }, 375 { "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 376 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 377 { "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0, 378 &dt_idops_func, "void(@, ...)" }, 379 { "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 380 &dt_idops_type, "void" }, 381 { "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0, 382 &dt_idops_type, "id_t" }, 383 { "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP, 384 DT_ATTR_STABCMN, DT_VERS_1_0, 385 &dt_idops_type, "uint64_t" }, 386 { "tolower", DT_IDENT_FUNC, 0, DIF_SUBR_TOLOWER, DT_ATTR_STABCMN, DT_VERS_1_8, 387 &dt_idops_func, "string(const char *)" }, 388 { "toupper", DT_IDENT_FUNC, 0, DIF_SUBR_TOUPPER, DT_ATTR_STABCMN, DT_VERS_1_8, 389 &dt_idops_func, "string(const char *)" }, 390 { "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0, 391 &dt_idops_func, "void(@)" }, 392 { "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM, 393 DT_ATTR_STABCMN, DT_VERS_1_0, 394 &dt_idops_func, "void(@, size_t, ...)" }, 395 { "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN, 396 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 397 { "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN, 398 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 399 { "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN, 400 DT_VERS_1_2, &dt_idops_type, "uint64_t" }, 401 { "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 402 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 403 { "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0, 404 &dt_idops_type, "uid_t" }, 405 { "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN, 406 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 407 { "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0, 408 &dt_idops_regs, NULL }, 409 { "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 410 &dt_idops_func, "stack(...)" }, 411 { "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH, 412 DT_ATTR_STABCMN, DT_VERS_1_2, 413 &dt_idops_type, "uint32_t" }, 414 { "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 415 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 416 { "vmregs", DT_IDENT_ARRAY, 0, DIF_VAR_VMREGS, DT_ATTR_STABCMN, DT_VERS_1_7, 417 &dt_idops_regs, NULL }, 418 { "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP, 419 DT_ATTR_STABCMN, DT_VERS_1_0, 420 &dt_idops_type, "uint64_t" }, 421 { "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP, 422 DT_ATTR_STABCMN, DT_VERS_1_0, 423 &dt_idops_type, "int64_t" }, 424 { "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME, 425 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 426 { NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL } 427 }; 428 429 /* 430 * Tables of ILP32 intrinsic integer and floating-point type templates to use 431 * to populate the dynamic "C" CTF type container. 432 */ 433 static const dt_intrinsic_t _dtrace_intrinsics_32[] = { 434 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 435 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 436 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 437 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 438 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 439 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 440 { "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 441 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 442 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 443 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 444 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 445 { "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 446 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 447 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 448 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 449 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 450 { "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER }, 451 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 452 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 453 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 454 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 455 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 456 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 457 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 458 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 459 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 460 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 461 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 462 { NULL, { 0, 0, 0 }, 0 } 463 }; 464 465 /* 466 * Tables of LP64 intrinsic integer and floating-point type templates to use 467 * to populate the dynamic "C" CTF type container. 468 */ 469 static const dt_intrinsic_t _dtrace_intrinsics_64[] = { 470 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 471 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 472 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 473 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 474 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 475 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 476 { "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 477 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 478 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 479 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 480 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 481 { "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 482 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 483 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 484 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 485 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 486 { "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER }, 487 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 488 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 489 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 490 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 491 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 492 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 493 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 494 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 495 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 496 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 497 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 498 { NULL, { 0, 0, 0 }, 0 } 499 }; 500 501 /* 502 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container. 503 * These aliases ensure that D definitions can use typical <sys/types.h> names. 504 */ 505 static const dt_typedef_t _dtrace_typedefs_32[] = { 506 { "char", "int8_t" }, 507 { "short", "int16_t" }, 508 { "int", "int32_t" }, 509 { "long long", "int64_t" }, 510 { "int", "intptr_t" }, 511 { "int", "ssize_t" }, 512 { "unsigned char", "uint8_t" }, 513 { "unsigned short", "uint16_t" }, 514 { "unsigned", "uint32_t" }, 515 { "unsigned long long", "uint64_t" }, 516 { "unsigned char", "uchar_t" }, 517 { "unsigned short", "ushort_t" }, 518 { "unsigned", "uint_t" }, 519 { "unsigned long", "ulong_t" }, 520 { "unsigned long long", "u_longlong_t" }, 521 { "int", "ptrdiff_t" }, 522 { "unsigned", "uintptr_t" }, 523 { "unsigned", "size_t" }, 524 { "long", "id_t" }, 525 { "long", "pid_t" }, 526 { NULL, NULL } 527 }; 528 529 /* 530 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container. 531 * These aliases ensure that D definitions can use typical <sys/types.h> names. 532 */ 533 static const dt_typedef_t _dtrace_typedefs_64[] = { 534 { "char", "int8_t" }, 535 { "short", "int16_t" }, 536 { "int", "int32_t" }, 537 { "long", "int64_t" }, 538 { "long", "intptr_t" }, 539 { "long", "ssize_t" }, 540 { "unsigned char", "uint8_t" }, 541 { "unsigned short", "uint16_t" }, 542 { "unsigned", "uint32_t" }, 543 { "unsigned long", "uint64_t" }, 544 { "unsigned char", "uchar_t" }, 545 { "unsigned short", "ushort_t" }, 546 { "unsigned", "uint_t" }, 547 { "unsigned long", "ulong_t" }, 548 { "unsigned long long", "u_longlong_t" }, 549 { "long", "ptrdiff_t" }, 550 { "unsigned long", "uintptr_t" }, 551 { "unsigned long", "size_t" }, 552 { "int", "id_t" }, 553 { "int", "pid_t" }, 554 { NULL, NULL } 555 }; 556 557 /* 558 * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[] 559 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 560 */ 561 static const dt_intdesc_t _dtrace_ints_32[] = { 562 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 563 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 564 { "long", NULL, CTF_ERR, 0x7fffffffULL }, 565 { "unsigned long", NULL, CTF_ERR, 0xffffffffULL }, 566 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 567 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 568 }; 569 570 /* 571 * Tables of LP64 integer type templates used to populate the dtp->dt_ints[] 572 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 573 */ 574 static const dt_intdesc_t _dtrace_ints_64[] = { 575 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 576 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 577 { "long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 578 { "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL }, 579 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 580 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 581 }; 582 583 /* 584 * Table of macro variable templates used to populate the macro identifier hash 585 * when a new dtrace client open occurs. Values are set by dtrace_update(). 586 */ 587 static const dt_ident_t _dtrace_macros[] = { 588 { "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 589 { "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 590 { "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 591 { "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 592 { "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 593 { "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 594 { "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 595 { "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 596 { "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 597 { "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 598 { "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 599 { NULL, 0, 0, 0, { 0, 0, 0 }, 0 } 600 }; 601 602 /* 603 * Hard-wired definition string to be compiled and cached every time a new 604 * DTrace library handle is initialized. This string should only be used to 605 * contain definitions that should be present regardless of DTRACE_O_NOLIBS. 606 */ 607 static const char _dtrace_hardwire[] = "\ 608 inline long NULL = 0; \n\ 609 #pragma D binding \"1.0\" NULL\n\ 610 "; 611 612 /* 613 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV. 614 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel. 615 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are 616 * relying on the fact that when running dtrace(1M), isaexec will invoke the 617 * binary with the same bitness as the kernel, which is what we want by default 618 * when generating our DIF. The user can override the choice using oflags. 619 */ 620 static const dtrace_conf_t _dtrace_conf = { 621 DIF_VERSION, /* dtc_difversion */ 622 DIF_DIR_NREGS, /* dtc_difintregs */ 623 DIF_DTR_NREGS, /* dtc_diftupregs */ 624 CTF_MODEL_NATIVE /* dtc_ctfmodel */ 625 }; 626 627 const dtrace_attribute_t _dtrace_maxattr = { 628 DTRACE_STABILITY_MAX, 629 DTRACE_STABILITY_MAX, 630 DTRACE_CLASS_MAX 631 }; 632 633 const dtrace_attribute_t _dtrace_defattr = { 634 DTRACE_STABILITY_STABLE, 635 DTRACE_STABILITY_STABLE, 636 DTRACE_CLASS_COMMON 637 }; 638 639 const dtrace_attribute_t _dtrace_symattr = { 640 DTRACE_STABILITY_PRIVATE, 641 DTRACE_STABILITY_PRIVATE, 642 DTRACE_CLASS_UNKNOWN 643 }; 644 645 const dtrace_attribute_t _dtrace_typattr = { 646 DTRACE_STABILITY_PRIVATE, 647 DTRACE_STABILITY_PRIVATE, 648 DTRACE_CLASS_UNKNOWN 649 }; 650 651 const dtrace_attribute_t _dtrace_prvattr = { 652 DTRACE_STABILITY_PRIVATE, 653 DTRACE_STABILITY_PRIVATE, 654 DTRACE_CLASS_UNKNOWN 655 }; 656 657 const dtrace_pattr_t _dtrace_prvdesc = { 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 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 662 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 663 }; 664 665 const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */ 666 const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */ 667 668 const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */ 669 const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */ 670 671 int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */ 672 int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */ 673 uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */ 674 uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */ 675 uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */ 676 uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */ 677 size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */ 678 int _dtrace_argmax = 32; /* default maximum number of probe arguments */ 679 680 int _dtrace_debug = 0; /* debug messages enabled (off) */ 681 const char *const _dtrace_version = DT_VERS_STRING; /* API version string */ 682 int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */ 683 684 typedef struct dt_fdlist { 685 int *df_fds; /* array of provider driver file descriptors */ 686 uint_t df_ents; /* number of valid elements in df_fds[] */ 687 uint_t df_size; /* size of df_fds[] */ 688 } dt_fdlist_t; 689 690 #pragma init(_dtrace_init) 691 void 692 _dtrace_init(void) 693 { 694 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL; 695 696 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) { 697 if (rd_init(_dtrace_rdvers) == RD_OK) 698 break; 699 } 700 } 701 702 static dtrace_hdl_t * 703 set_open_errno(dtrace_hdl_t *dtp, int *errp, int err) 704 { 705 if (dtp != NULL) 706 dtrace_close(dtp); 707 if (errp != NULL) 708 *errp = err; 709 return (NULL); 710 } 711 712 static void 713 dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp) 714 { 715 dt_provmod_t *prov; 716 char path[PATH_MAX]; 717 struct dirent *dp, *ep; 718 DIR *dirp; 719 int fd; 720 721 if ((dirp = opendir(_dtrace_provdir)) == NULL) 722 return; /* failed to open directory; just skip it */ 723 724 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1); 725 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1); 726 727 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) { 728 if (dp->d_name[0] == '.') 729 continue; /* skip "." and ".." */ 730 731 if (dfp->df_ents == dfp->df_size) { 732 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 733 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 734 735 if (fds == NULL) 736 break; /* skip the rest of this directory */ 737 738 dfp->df_fds = fds; 739 dfp->df_size = size; 740 } 741 742 (void) snprintf(path, sizeof (path), "%s/%s", 743 _dtrace_provdir, dp->d_name); 744 745 if ((fd = open(path, O_RDONLY)) == -1) 746 continue; /* failed to open driver; just skip it */ 747 748 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 749 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) { 750 free(prov); 751 (void) close(fd); 752 break; 753 } 754 755 (void) strcpy(prov->dp_name, dp->d_name); 756 prov->dp_next = *provmod; 757 *provmod = prov; 758 759 dt_dprintf("opened provider %s\n", dp->d_name); 760 dfp->df_fds[dfp->df_ents++] = fd; 761 } 762 763 (void) closedir(dirp); 764 } 765 766 static void 767 dt_provmod_destroy(dt_provmod_t **provmod) 768 { 769 dt_provmod_t *next, *current; 770 771 for (current = *provmod; current != NULL; current = next) { 772 next = current->dp_next; 773 free(current->dp_name); 774 free(current); 775 } 776 777 *provmod = NULL; 778 } 779 780 static const char * 781 dt_get_sysinfo(int cmd, char *buf, size_t len) 782 { 783 ssize_t rv = sysinfo(cmd, buf, len); 784 char *p = buf; 785 786 if (rv < 0 || rv > len) 787 (void) snprintf(buf, len, "%s", "Unknown"); 788 789 while ((p = strchr(p, '.')) != NULL) 790 *p++ = '_'; 791 792 return (buf); 793 } 794 795 static dtrace_hdl_t * 796 dt_vopen(int version, int flags, int *errp, 797 const dtrace_vector_t *vector, void *arg) 798 { 799 dtrace_hdl_t *dtp = NULL; 800 int dtfd = -1, ftfd = -1, fterr = 0; 801 dtrace_prog_t *pgp; 802 dt_module_t *dmp; 803 dt_provmod_t *provmod = NULL; 804 int i, err; 805 struct rlimit rl; 806 807 const dt_intrinsic_t *dinp; 808 const dt_typedef_t *dtyp; 809 const dt_ident_t *idp; 810 811 dtrace_typeinfo_t dtt; 812 ctf_funcinfo_t ctc; 813 ctf_arinfo_t ctr; 814 815 dt_fdlist_t df = { NULL, 0, 0 }; 816 817 char isadef[32], utsdef[32]; 818 char s1[64], s2[64]; 819 820 if (version <= 0) 821 return (set_open_errno(dtp, errp, EINVAL)); 822 823 if (version > DTRACE_VERSION) 824 return (set_open_errno(dtp, errp, EDT_VERSION)); 825 826 if (version < DTRACE_VERSION) { 827 /* 828 * Currently, increasing the library version number is used to 829 * denote a binary incompatible change. That is, a consumer 830 * of the library cannot run on a version of the library with 831 * a higher DTRACE_VERSION number than the consumer compiled 832 * against. Once the library API has been committed to, 833 * backwards binary compatibility will be required; at that 834 * time, this check should change to return EDT_OVERSION only 835 * if the specified version number is less than the version 836 * number at the time of interface commitment. 837 */ 838 return (set_open_errno(dtp, errp, EDT_OVERSION)); 839 } 840 841 if (flags & ~DTRACE_O_MASK) 842 return (set_open_errno(dtp, errp, EINVAL)); 843 844 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32)) 845 return (set_open_errno(dtp, errp, EINVAL)); 846 847 if (vector == NULL && arg != NULL) 848 return (set_open_errno(dtp, errp, EINVAL)); 849 850 if (elf_version(EV_CURRENT) == EV_NONE) 851 return (set_open_errno(dtp, errp, EDT_ELFVERSION)); 852 853 if (vector != NULL || (flags & DTRACE_O_NODEV)) 854 goto alloc; /* do not attempt to open dtrace device */ 855 856 /* 857 * Before we get going, crank our limit on file descriptors up to the 858 * hard limit. This is to allow for the fact that libproc keeps file 859 * descriptors to objects open for the lifetime of the proc handle; 860 * without raising our hard limit, we would have an acceptably small 861 * bound on the number of processes that we could concurrently 862 * instrument with the pid provider. 863 */ 864 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) { 865 rl.rlim_cur = rl.rlim_max; 866 (void) setrlimit(RLIMIT_NOFILE, &rl); 867 } 868 869 /* 870 * Get the device path of each of the providers. We hold them open 871 * in the df.df_fds list until we open the DTrace driver itself, 872 * allowing us to see all of the probes provided on this system. Once 873 * we have the DTrace driver open, we can safely close all the providers 874 * now that they have registered with the framework. 875 */ 876 dt_provmod_open(&provmod, &df); 877 878 dtfd = open("/dev/dtrace/dtrace", O_RDWR); 879 err = errno; /* save errno from opening dtfd */ 880 881 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR); 882 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */ 883 884 while (df.df_ents-- != 0) 885 (void) close(df.df_fds[df.df_ents]); 886 887 free(df.df_fds); 888 889 /* 890 * If we failed to open the dtrace device, fail dtrace_open(). 891 * We convert some kernel errnos to custom libdtrace errnos to 892 * improve the resulting message from the usual strerror(). 893 */ 894 if (dtfd == -1) { 895 dt_provmod_destroy(&provmod); 896 switch (err) { 897 case ENOENT: 898 err = EDT_NOENT; 899 break; 900 case EBUSY: 901 err = EDT_BUSY; 902 break; 903 case EACCES: 904 err = EDT_ACCESS; 905 break; 906 } 907 return (set_open_errno(dtp, errp, err)); 908 } 909 910 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC); 911 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC); 912 913 alloc: 914 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL) 915 return (set_open_errno(dtp, errp, EDT_NOMEM)); 916 917 bzero(dtp, sizeof (dtrace_hdl_t)); 918 dtp->dt_oflags = flags; 919 dtp->dt_prcmode = DT_PROC_STOP_PREINIT; 920 dtp->dt_linkmode = DT_LINK_KERNEL; 921 dtp->dt_linktype = DT_LTYP_ELF; 922 dtp->dt_xlatemode = DT_XL_STATIC; 923 dtp->dt_stdcmode = DT_STDC_XA; 924 dtp->dt_version = version; 925 dtp->dt_fd = dtfd; 926 dtp->dt_ftfd = ftfd; 927 dtp->dt_fterr = fterr; 928 dtp->dt_cdefs_fd = -1; 929 dtp->dt_ddefs_fd = -1; 930 dtp->dt_stdout_fd = -1; 931 dtp->dt_modbuckets = _dtrace_strbuckets; 932 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *)); 933 dtp->dt_provbuckets = _dtrace_strbuckets; 934 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *)); 935 dt_proc_hash_create(dtp); 936 dtp->dt_vmax = DT_VERS_LATEST; 937 dtp->dt_cpp_path = strdup(_dtrace_defcpp); 938 dtp->dt_cpp_argv = malloc(sizeof (char *)); 939 dtp->dt_cpp_argc = 1; 940 dtp->dt_cpp_args = 1; 941 dtp->dt_ld_path = strdup(_dtrace_defld); 942 dtp->dt_provmod = provmod; 943 dtp->dt_vector = vector; 944 dtp->dt_varg = arg; 945 dt_dof_init(dtp); 946 (void) uname(&dtp->dt_uts); 947 948 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL || 949 dtp->dt_procs == NULL || dtp->dt_ld_path == NULL || 950 dtp->dt_cpp_path == NULL || dtp->dt_cpp_argv == NULL) 951 return (set_open_errno(dtp, errp, EDT_NOMEM)); 952 953 for (i = 0; i < DTRACEOPT_MAX; i++) 954 dtp->dt_options[i] = DTRACEOPT_UNSET; 955 956 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path); 957 958 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u", 959 (uint_t)(sizeof (void *) * NBBY)); 960 961 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s", 962 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)), 963 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2))); 964 965 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL || 966 dt_cpp_add_arg(dtp, "-D__unix") == NULL || 967 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL || 968 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL || 969 dt_cpp_add_arg(dtp, isadef) == NULL || 970 dt_cpp_add_arg(dtp, utsdef) == NULL) 971 return (set_open_errno(dtp, errp, EDT_NOMEM)); 972 973 if (flags & DTRACE_O_NODEV) 974 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf)); 975 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0) 976 return (set_open_errno(dtp, errp, errno)); 977 978 if (flags & DTRACE_O_LP64) 979 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64; 980 else if (flags & DTRACE_O_ILP32) 981 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32; 982 983 #ifdef __sparc 984 /* 985 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h> 986 * and __sparcv9 is defined if we are doing a 64-bit compile. 987 */ 988 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL) 989 return (set_open_errno(dtp, errp, EDT_NOMEM)); 990 991 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 && 992 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL) 993 return (set_open_errno(dtp, errp, EDT_NOMEM)); 994 #endif 995 996 #ifdef __x86 997 /* 998 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit 999 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC, 1000 * they are defined exclusive of one another (see PSARC 2004/619). 1001 */ 1002 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 1003 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL) 1004 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1005 } else { 1006 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL) 1007 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1008 } 1009 #endif 1010 1011 if (dtp->dt_conf.dtc_difversion < DIF_VERSION) 1012 return (set_open_errno(dtp, errp, EDT_DIFVERS)); 1013 1014 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) 1015 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32)); 1016 else 1017 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64)); 1018 1019 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX); 1020 dtp->dt_aggs = dt_idhash_create("aggregation", NULL, 1021 DTRACE_AGGVARIDNONE + 1, UINT_MAX); 1022 1023 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals, 1024 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1025 1026 dtp->dt_tls = dt_idhash_create("thread local", NULL, 1027 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1028 1029 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL || 1030 dtp->dt_globals == NULL || dtp->dt_tls == NULL) 1031 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1032 1033 /* 1034 * Populate the dt_macros identifier hash table by hand: we can't use 1035 * the dt_idhash_populate() mechanism because we're not yet compiling 1036 * and dtrace_update() needs to immediately reference these idents. 1037 */ 1038 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) { 1039 if (dt_idhash_insert(dtp->dt_macros, idp->di_name, 1040 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr, 1041 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw, 1042 idp->di_iarg, 0) == NULL) 1043 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1044 } 1045 1046 /* 1047 * Update the module list using /system/object and load the values for 1048 * the macro variable definitions according to the current process. 1049 */ 1050 dtrace_update(dtp); 1051 1052 /* 1053 * Select the intrinsics and typedefs we want based on the data model. 1054 * The intrinsics are under "C". The typedefs are added under "D". 1055 */ 1056 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) { 1057 dinp = _dtrace_intrinsics_32; 1058 dtyp = _dtrace_typedefs_32; 1059 } else { 1060 dinp = _dtrace_intrinsics_64; 1061 dtyp = _dtrace_typedefs_64; 1062 } 1063 1064 /* 1065 * Create a dynamic CTF container under the "C" scope for intrinsic 1066 * types and types defined in ANSI-C header files that are included. 1067 */ 1068 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL) 1069 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1070 1071 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1072 return (set_open_errno(dtp, errp, EDT_CTF)); 1073 1074 dt_dprintf("created CTF container for %s (%p)\n", 1075 dmp->dm_name, (void *)dmp->dm_ctfp); 1076 1077 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1078 ctf_setspecific(dmp->dm_ctfp, dmp); 1079 1080 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1081 dmp->dm_modid = -1; /* no module ID */ 1082 1083 /* 1084 * Fill the dynamic "C" CTF container with all of the intrinsic 1085 * integer and floating-point types appropriate for this data model. 1086 */ 1087 for (; dinp->din_name != NULL; dinp++) { 1088 if (dinp->din_kind == CTF_K_INTEGER) { 1089 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT, 1090 dinp->din_name, &dinp->din_data); 1091 } else { 1092 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT, 1093 dinp->din_name, &dinp->din_data); 1094 } 1095 1096 if (err == CTF_ERR) { 1097 dt_dprintf("failed to add %s to C container: %s\n", 1098 dinp->din_name, ctf_errmsg( 1099 ctf_errno(dmp->dm_ctfp))); 1100 return (set_open_errno(dtp, errp, EDT_CTF)); 1101 } 1102 } 1103 1104 if (ctf_update(dmp->dm_ctfp) != 0) { 1105 dt_dprintf("failed to update C container: %s\n", 1106 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1107 return (set_open_errno(dtp, errp, EDT_CTF)); 1108 } 1109 1110 /* 1111 * Add intrinsic pointer types that are needed to initialize printf 1112 * format dictionary types (see table in dt_printf.c). 1113 */ 1114 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1115 ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1116 1117 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1118 ctf_lookup_by_name(dmp->dm_ctfp, "char")); 1119 1120 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1121 ctf_lookup_by_name(dmp->dm_ctfp, "int")); 1122 1123 if (ctf_update(dmp->dm_ctfp) != 0) { 1124 dt_dprintf("failed to update C container: %s\n", 1125 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1126 return (set_open_errno(dtp, errp, EDT_CTF)); 1127 } 1128 1129 /* 1130 * Create a dynamic CTF container under the "D" scope for types that 1131 * are defined by the D program itself or on-the-fly by the D compiler. 1132 * The "D" CTF container is a child of the "C" CTF container. 1133 */ 1134 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL) 1135 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1136 1137 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1138 return (set_open_errno(dtp, errp, EDT_CTF)); 1139 1140 dt_dprintf("created CTF container for %s (%p)\n", 1141 dmp->dm_name, (void *)dmp->dm_ctfp); 1142 1143 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1144 ctf_setspecific(dmp->dm_ctfp, dmp); 1145 1146 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1147 dmp->dm_modid = -1; /* no module ID */ 1148 1149 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) { 1150 dt_dprintf("failed to import D parent container: %s\n", 1151 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1152 return (set_open_errno(dtp, errp, EDT_CTF)); 1153 } 1154 1155 /* 1156 * Fill the dynamic "D" CTF container with all of the built-in typedefs 1157 * that we need to use for our D variable and function definitions. 1158 * This ensures that basic inttypes.h names are always available to us. 1159 */ 1160 for (; dtyp->dty_src != NULL; dtyp++) { 1161 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1162 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp, 1163 dtyp->dty_src)) == CTF_ERR) { 1164 dt_dprintf("failed to add typedef %s %s to D " 1165 "container: %s", dtyp->dty_src, dtyp->dty_dst, 1166 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1167 return (set_open_errno(dtp, errp, EDT_CTF)); 1168 } 1169 } 1170 1171 /* 1172 * Insert a CTF ID corresponding to a pointer to a type of kind 1173 * CTF_K_FUNCTION we can use in the compiler for function pointers. 1174 * CTF treats all function pointers as "int (*)()" so we only need one. 1175 */ 1176 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int"); 1177 ctc.ctc_argc = 0; 1178 ctc.ctc_flags = 0; 1179 1180 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp, 1181 CTF_ADD_ROOT, &ctc, NULL); 1182 1183 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp, 1184 CTF_ADD_ROOT, dtp->dt_type_func); 1185 1186 /* 1187 * We also insert CTF definitions for the special D intrinsic types 1188 * string and <DYN> into the D container. The string type is added 1189 * as a typedef of char[n]. The <DYN> type is an alias for void. 1190 * We compare types to these special CTF ids throughout the compiler. 1191 */ 1192 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char"); 1193 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long"); 1194 ctr.ctr_nelems = _dtrace_strsize; 1195 1196 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1197 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr)); 1198 1199 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1200 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1201 1202 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1203 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1204 1205 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1206 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1207 1208 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1209 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1210 1211 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR || 1212 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR || 1213 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR || 1214 dtp->dt_type_usymaddr == CTF_ERR) { 1215 dt_dprintf("failed to add intrinsic to D container: %s\n", 1216 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1217 return (set_open_errno(dtp, errp, EDT_CTF)); 1218 } 1219 1220 if (ctf_update(dmp->dm_ctfp) != 0) { 1221 dt_dprintf("failed update D container: %s\n", 1222 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1223 return (set_open_errno(dtp, errp, EDT_CTF)); 1224 } 1225 1226 /* 1227 * Initialize the integer description table used to convert integer 1228 * constants to the appropriate types. Refer to the comments above 1229 * dt_node_int() for a complete description of how this table is used. 1230 */ 1231 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) { 1232 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY, 1233 dtp->dt_ints[i].did_name, &dtt) != 0) { 1234 dt_dprintf("failed to lookup integer type %s: %s\n", 1235 dtp->dt_ints[i].did_name, 1236 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1237 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1238 } 1239 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp; 1240 dtp->dt_ints[i].did_type = dtt.dtt_type; 1241 } 1242 1243 /* 1244 * Now that we've created the "C" and "D" containers, move them to the 1245 * start of the module list so that these types and symbols are found 1246 * first (for stability) when iterating through the module list. 1247 */ 1248 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs); 1249 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs); 1250 1251 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs); 1252 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs); 1253 1254 if (dt_pfdict_create(dtp) == -1) 1255 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1256 1257 /* 1258 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default 1259 * because without /dev/dtrace open, we will not be able to load the 1260 * names and attributes of any providers or probes from the kernel. 1261 */ 1262 if (flags & DTRACE_O_NODEV) 1263 dtp->dt_cflags |= DTRACE_C_ZDEFS; 1264 1265 /* 1266 * Load hard-wired inlines into the definition cache by calling the 1267 * compiler on the raw definition string defined above. 1268 */ 1269 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire, 1270 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) { 1271 dt_dprintf("failed to load hard-wired definitions: %s\n", 1272 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1273 return (set_open_errno(dtp, errp, EDT_HARDWIRE)); 1274 } 1275 1276 dt_program_destroy(dtp, pgp); 1277 1278 /* 1279 * Set up the default DTrace library path. Once set, the next call to 1280 * dt_compile() will compile all the libraries. We intentionally defer 1281 * library processing to improve overhead for clients that don't ever 1282 * compile, and to provide better error reporting (because the full 1283 * reporting of compiler errors requires dtrace_open() to succeed). 1284 */ 1285 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0) 1286 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1287 1288 return (dtp); 1289 } 1290 1291 dtrace_hdl_t * 1292 dtrace_open(int version, int flags, int *errp) 1293 { 1294 return (dt_vopen(version, flags, errp, NULL, NULL)); 1295 } 1296 1297 dtrace_hdl_t * 1298 dtrace_vopen(int version, int flags, int *errp, 1299 const dtrace_vector_t *vector, void *arg) 1300 { 1301 return (dt_vopen(version, flags, errp, vector, arg)); 1302 } 1303 1304 void 1305 dtrace_close(dtrace_hdl_t *dtp) 1306 { 1307 dt_ident_t *idp, *ndp; 1308 dt_module_t *dmp; 1309 dt_provider_t *pvp; 1310 dtrace_prog_t *pgp; 1311 dt_xlator_t *dxp; 1312 dt_dirpath_t *dirp; 1313 int i; 1314 1315 if (dtp->dt_procs != NULL) 1316 dt_proc_hash_destroy(dtp); 1317 1318 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL) 1319 dt_program_destroy(dtp, pgp); 1320 1321 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL) 1322 dt_xlator_destroy(dtp, dxp); 1323 1324 dt_free(dtp, dtp->dt_xlatormap); 1325 1326 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) { 1327 ndp = idp->di_next; 1328 dt_ident_destroy(idp); 1329 } 1330 1331 if (dtp->dt_macros != NULL) 1332 dt_idhash_destroy(dtp->dt_macros); 1333 if (dtp->dt_aggs != NULL) 1334 dt_idhash_destroy(dtp->dt_aggs); 1335 if (dtp->dt_globals != NULL) 1336 dt_idhash_destroy(dtp->dt_globals); 1337 if (dtp->dt_tls != NULL) 1338 dt_idhash_destroy(dtp->dt_tls); 1339 1340 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL) 1341 dt_module_destroy(dtp, dmp); 1342 1343 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL) 1344 dt_provider_destroy(dtp, pvp); 1345 1346 if (dtp->dt_fd != -1) 1347 (void) close(dtp->dt_fd); 1348 if (dtp->dt_ftfd != -1) 1349 (void) close(dtp->dt_ftfd); 1350 if (dtp->dt_cdefs_fd != -1) 1351 (void) close(dtp->dt_cdefs_fd); 1352 if (dtp->dt_ddefs_fd != -1) 1353 (void) close(dtp->dt_ddefs_fd); 1354 if (dtp->dt_stdout_fd != -1) 1355 (void) close(dtp->dt_stdout_fd); 1356 1357 dt_epid_destroy(dtp); 1358 dt_aggid_destroy(dtp); 1359 dt_format_destroy(dtp); 1360 dt_buffered_destroy(dtp); 1361 dt_aggregate_destroy(dtp); 1362 free(dtp->dt_buf.dtbd_data); 1363 dt_pfdict_destroy(dtp); 1364 dt_provmod_destroy(&dtp->dt_provmod); 1365 dt_dof_fini(dtp); 1366 1367 for (i = 1; i < dtp->dt_cpp_argc; i++) 1368 free(dtp->dt_cpp_argv[i]); 1369 1370 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) { 1371 dt_list_delete(&dtp->dt_lib_path, dirp); 1372 free(dirp->dir_path); 1373 free(dirp); 1374 } 1375 1376 free(dtp->dt_cpp_argv); 1377 free(dtp->dt_cpp_path); 1378 free(dtp->dt_ld_path); 1379 1380 free(dtp->dt_mods); 1381 free(dtp->dt_provs); 1382 free(dtp); 1383 } 1384 1385 int 1386 dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods) 1387 { 1388 dt_provmod_t *prov; 1389 int i = 0; 1390 1391 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) { 1392 if (i < nmods) 1393 mods[i] = prov->dp_name; 1394 } 1395 1396 return (i); 1397 } 1398 1399 int 1400 dtrace_ctlfd(dtrace_hdl_t *dtp) 1401 { 1402 return (dtp->dt_fd); 1403 } 1404