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