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 */ 25 26 #include <sys/types.h> 27 #if defined(sun) 28 #include <sys/modctl.h> 29 #include <sys/systeminfo.h> 30 #endif 31 #include <sys/resource.h> 32 33 #include <libelf.h> 34 #include <strings.h> 35 #if defined(sun) 36 #include <alloca.h> 37 #endif 38 #include <limits.h> 39 #include <unistd.h> 40 #include <stdlib.h> 41 #include <stdio.h> 42 #include <fcntl.h> 43 #include <errno.h> 44 #include <assert.h> 45 46 #define _POSIX_PTHREAD_SEMANTICS 47 #include <dirent.h> 48 #undef _POSIX_PTHREAD_SEMANTICS 49 50 #include <dt_impl.h> 51 #include <dt_program.h> 52 #include <dt_module.h> 53 #include <dt_printf.h> 54 #include <dt_string.h> 55 #include <dt_provider.h> 56 #if !defined(sun) 57 #include <sys/sysctl.h> 58 #include <string.h> 59 #endif 60 #if defined(__i386__) 61 #include <ieeefp.h> 62 #endif 63 64 /* 65 * Stability and versioning definitions. These #defines are used in the tables 66 * of identifiers below to fill in the attribute and version fields associated 67 * with each identifier. The DT_ATTR_* macros are a convenience to permit more 68 * concise declarations of common attributes such as Stable/Stable/Common. The 69 * DT_VERS_* macros declare the encoded integer values of all versions used so 70 * far. DT_VERS_LATEST must correspond to the latest version value among all 71 * versions exported by the D compiler. DT_VERS_STRING must be an ASCII string 72 * that contains DT_VERS_LATEST within it along with any suffixes (e.g. Beta). 73 * You must update DT_VERS_LATEST and DT_VERS_STRING when adding a new version, 74 * and then add the new version to the _dtrace_versions[] array declared below. 75 * Refer to the Solaris Dynamic Tracing Guide Stability and Versioning chapters 76 * respectively for an explanation of these DTrace features and their values. 77 * 78 * NOTE: Although the DTrace versioning scheme supports the labeling and 79 * introduction of incompatible changes (e.g. dropping an interface in a 80 * major release), the libdtrace code does not currently support this. 81 * All versions are assumed to strictly inherit from one another. If 82 * we ever need to provide divergent interfaces, this will need work. 83 */ 84 #define DT_ATTR_STABCMN { DTRACE_STABILITY_STABLE, \ 85 DTRACE_STABILITY_STABLE, DTRACE_CLASS_COMMON } 86 87 #define DT_ATTR_EVOLCMN { DTRACE_STABILITY_EVOLVING, \ 88 DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_COMMON \ 89 } 90 91 /* 92 * The version number should be increased for every customer visible release 93 * of Solaris. The major number should be incremented when a fundamental 94 * change has been made that would affect all consumers, and would reflect 95 * sweeping changes to DTrace or the D language. The minor number should be 96 * incremented when a change is introduced that could break scripts that had 97 * previously worked; for example, adding a new built-in variable could break 98 * a script which was already using that identifier. The micro number should 99 * be changed when introducing functionality changes or major bug fixes that 100 * do not affect backward compatibility -- this is merely to make capabilities 101 * easily determined from the version number. Minor bugs do not require any 102 * modification to the version number. 103 */ 104 #define DT_VERS_1_0 DT_VERSION_NUMBER(1, 0, 0) 105 #define DT_VERS_1_1 DT_VERSION_NUMBER(1, 1, 0) 106 #define DT_VERS_1_2 DT_VERSION_NUMBER(1, 2, 0) 107 #define DT_VERS_1_2_1 DT_VERSION_NUMBER(1, 2, 1) 108 #define DT_VERS_1_2_2 DT_VERSION_NUMBER(1, 2, 2) 109 #define DT_VERS_1_3 DT_VERSION_NUMBER(1, 3, 0) 110 #define DT_VERS_1_4 DT_VERSION_NUMBER(1, 4, 0) 111 #define DT_VERS_1_4_1 DT_VERSION_NUMBER(1, 4, 1) 112 #define DT_VERS_1_5 DT_VERSION_NUMBER(1, 5, 0) 113 #define DT_VERS_1_6 DT_VERSION_NUMBER(1, 6, 0) 114 #define DT_VERS_1_6_1 DT_VERSION_NUMBER(1, 6, 1) 115 #define DT_VERS_1_6_2 DT_VERSION_NUMBER(1, 6, 2) 116 #define DT_VERS_1_6_3 DT_VERSION_NUMBER(1, 6, 3) 117 #define DT_VERS_LATEST DT_VERS_1_6_3 118 #define DT_VERS_STRING "Sun D 1.6.3" 119 120 const dt_version_t _dtrace_versions[] = { 121 DT_VERS_1_0, /* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */ 122 DT_VERS_1_1, /* D API 1.1.0 Solaris Express 6/05 */ 123 DT_VERS_1_2, /* D API 1.2.0 Solaris 10 Update 1 */ 124 DT_VERS_1_2_1, /* D API 1.2.1 Solaris Express 4/06 */ 125 DT_VERS_1_2_2, /* D API 1.2.2 Solaris Express 6/06 */ 126 DT_VERS_1_3, /* D API 1.3 Solaris Express 10/06 */ 127 DT_VERS_1_4, /* D API 1.4 Solaris Express 2/07 */ 128 DT_VERS_1_4_1, /* D API 1.4.1 Solaris Express 4/07 */ 129 DT_VERS_1_5, /* D API 1.5 Solaris Express 7/07 */ 130 DT_VERS_1_6, /* D API 1.6 */ 131 DT_VERS_1_6_1, /* D API 1.6.1 */ 132 DT_VERS_1_6_2, /* D API 1.6.2 */ 133 DT_VERS_1_6_3, /* D API 1.6.3 */ 134 0 135 }; 136 137 /* 138 * Global variables that are formatted on FreeBSD based on the kernel file name. 139 */ 140 #if !defined(sun) 141 static char curthread_str[MAXPATHLEN]; 142 static char intmtx_str[MAXPATHLEN]; 143 static char threadmtx_str[MAXPATHLEN]; 144 static char rwlock_str[MAXPATHLEN]; 145 static char sxlock_str[MAXPATHLEN]; 146 #endif 147 148 /* 149 * Table of global identifiers. This is used to populate the global identifier 150 * hash when a new dtrace client open occurs. For more info see dt_ident.h. 151 * The global identifiers that represent functions use the dt_idops_func ops 152 * and specify the private data pointer as a prototype string which is parsed 153 * when the identifier is first encountered. These prototypes look like ANSI 154 * C function prototypes except that the special symbol "@" can be used as a 155 * wildcard to represent a single parameter of any type (i.e. any dt_node_t). 156 * The standard "..." notation can also be used to represent varargs. An empty 157 * parameter list is taken to mean void (that is, no arguments are permitted). 158 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional 159 * argument. 160 */ 161 static const dt_ident_t _dtrace_globals[] = { 162 { "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0, 163 &dt_idops_func, "void *(size_t)" }, 164 { "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0, 165 &dt_idops_type, "int64_t" }, 166 { "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0, 167 &dt_idops_type, "int64_t" }, 168 { "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0, 169 &dt_idops_type, "int64_t" }, 170 { "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0, 171 &dt_idops_type, "int64_t" }, 172 { "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0, 173 &dt_idops_type, "int64_t" }, 174 { "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0, 175 &dt_idops_type, "int64_t" }, 176 { "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0, 177 &dt_idops_type, "int64_t" }, 178 { "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0, 179 &dt_idops_type, "int64_t" }, 180 { "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0, 181 &dt_idops_type, "int64_t" }, 182 { "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0, 183 &dt_idops_type, "int64_t" }, 184 { "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0, 185 &dt_idops_args, NULL }, 186 { "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0, 187 &dt_idops_func, "void(@)" }, 188 { "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0, 189 &dt_idops_func, "string(const char *)" }, 190 { "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0, 191 &dt_idops_func, "void(void *, void *, size_t)" }, 192 { "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT, 193 DT_ATTR_STABCMN, DT_VERS_1_0, 194 &dt_idops_func, "void()" }, 195 { "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0, 196 &dt_idops_type, "uintptr_t" }, 197 { "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0, 198 &dt_idops_func, "void(int)" }, 199 { "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN, 200 DT_VERS_1_0, &dt_idops_func, "string(const char *)" }, 201 { "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0, 202 &dt_idops_func, "void(...)" }, 203 { "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0, 204 &dt_idops_func, "void(int)" }, 205 { "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0, 206 &dt_idops_func, "void *(uintptr_t, size_t)" }, 207 { "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR, 208 DT_ATTR_STABCMN, DT_VERS_1_0, 209 &dt_idops_func, "string(uintptr_t, [size_t])" }, 210 { "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN, 211 DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" }, 212 { "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0, 213 &dt_idops_func, "void(void *, uintptr_t, size_t)" }, 214 { "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR, 215 DT_ATTR_STABCMN, DT_VERS_1_0, 216 &dt_idops_func, "void(char *, uintptr_t, size_t)" }, 217 { "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0, 218 &dt_idops_func, "void()" }, 219 { "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD, 220 { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE, 221 DTRACE_CLASS_COMMON }, DT_VERS_1_0, 222 #if defined(sun) 223 &dt_idops_type, "genunix`kthread_t *" }, 224 #else 225 &dt_idops_type, curthread_str }, 226 #endif 227 { "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME, 228 DT_ATTR_EVOLCMN, DT_VERS_1_0, 229 &dt_idops_func, "string(void *, int64_t)" }, 230 { "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN, 231 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 232 { "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0, 233 &dt_idops_func, "string(const char *)" }, 234 { "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0, 235 &dt_idops_func, "void(int)" }, 236 { "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0, 237 &dt_idops_type, "uint_t" }, 238 { "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0, 239 &dt_idops_type, "int" }, 240 { "execargs", DT_IDENT_SCALAR, 0, DIF_VAR_EXECARGS, 241 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 242 { "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME, 243 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 244 { "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0, 245 &dt_idops_func, "void(int)" }, 246 { "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN, 247 DT_VERS_1_1, &dt_idops_func, "void(@, ...)" }, 248 { "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN, 249 DT_VERS_1_0, &dt_idops_func, "void()" }, 250 { "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 251 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 252 { "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR, 253 DT_ATTR_EVOLCMN, DT_VERS_1_0, 254 &dt_idops_func, "genunix`major_t(genunix`dev_t)" }, 255 { "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR, 256 DT_ATTR_EVOLCMN, DT_VERS_1_0, 257 &dt_idops_func, "genunix`minor_t(genunix`dev_t)" }, 258 { "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 259 &dt_idops_func, "uint32_t(uint32_t)" }, 260 { "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 261 &dt_idops_func, "uint64_t(uint64_t)" }, 262 { "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 263 &dt_idops_func, "uint16_t(uint16_t)" }, 264 { "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0, 265 &dt_idops_type, "gid_t" }, 266 { "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0, 267 &dt_idops_type, "uint_t" }, 268 { "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 269 &dt_idops_func, "int(const char *, const char *, [int])" }, 270 { "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN, 271 #if defined(sun) 272 DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" }, 273 #else 274 DT_VERS_1_5, &dt_idops_func, "string(in_addr_t *)" }, 275 #endif 276 { "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN, 277 #if defined(sun) 278 DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" }, 279 #else 280 DT_VERS_1_5, &dt_idops_func, "string(struct in6_addr *)" }, 281 #endif 282 { "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN, 283 DT_VERS_1_5, &dt_idops_func, "string(int, void *)" }, 284 { "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0, 285 &dt_idops_type, "uint_t" }, 286 #if defined(sun) 287 { "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 288 &dt_idops_func, "stack(...)" }, 289 #endif 290 { "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0, 291 &dt_idops_func, "string(int64_t)" }, 292 { "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE, 293 DT_ATTR_STABCMN, DT_VERS_1_0, 294 &dt_idops_func, "void(@, int32_t, int32_t, ...)" }, 295 { "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0, 296 &dt_idops_func, "void(@)" }, 297 { "memref", DT_IDENT_FUNC, 0, DIF_SUBR_MEMREF, DT_ATTR_STABCMN, DT_VERS_1_1, 298 &dt_idops_func, "uintptr_t *(void *, size_t)" }, 299 { "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0, 300 &dt_idops_func, "void(@)" }, 301 { "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN, 302 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 303 { "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE, 304 DT_ATTR_STABCMN, DT_VERS_1_0, 305 &dt_idops_func, "size_t(mblk_t *)" }, 306 { "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE, 307 DT_ATTR_STABCMN, DT_VERS_1_0, 308 &dt_idops_func, "size_t(mblk_t *)" }, 309 #if defined(sun) 310 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 311 DT_ATTR_EVOLCMN, DT_VERS_1_0, 312 &dt_idops_func, "int(genunix`kmutex_t *)" }, 313 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 314 DT_ATTR_EVOLCMN, DT_VERS_1_0, 315 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" }, 316 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 317 DT_ATTR_EVOLCMN, DT_VERS_1_0, 318 &dt_idops_func, "int(genunix`kmutex_t *)" }, 319 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 320 DT_ATTR_EVOLCMN, DT_VERS_1_0, 321 &dt_idops_func, "int(genunix`kmutex_t *)" }, 322 #else 323 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 324 DT_ATTR_EVOLCMN, DT_VERS_1_0, 325 &dt_idops_func, intmtx_str }, 326 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 327 DT_ATTR_EVOLCMN, DT_VERS_1_0, 328 &dt_idops_func, threadmtx_str }, 329 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 330 DT_ATTR_EVOLCMN, DT_VERS_1_0, 331 &dt_idops_func, intmtx_str }, 332 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 333 DT_ATTR_EVOLCMN, DT_VERS_1_0, 334 &dt_idops_func, intmtx_str }, 335 #endif 336 { "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 337 &dt_idops_func, "uint32_t(uint32_t)" }, 338 { "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 339 &dt_idops_func, "uint64_t(uint64_t)" }, 340 { "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 341 &dt_idops_func, "uint16_t(uint16_t)" }, 342 { "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN, 343 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 344 { "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0, 345 &dt_idops_func, "void()" }, 346 { "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0, 347 &dt_idops_type, "pid_t" }, 348 { "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0, 349 &dt_idops_type, "pid_t" }, 350 { "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0, 351 &dt_idops_func, "void(@, ...)" }, 352 { "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0, 353 &dt_idops_func, "void(@, ...)" }, 354 { "printm", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTM, DT_ATTR_STABCMN, DT_VERS_1_0, 355 &dt_idops_func, "void(size_t, uintptr_t *)" }, 356 { "printt", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTT, DT_ATTR_STABCMN, DT_VERS_1_0, 357 &dt_idops_func, "void(size_t, uintptr_t *)" }, 358 { "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC, 359 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 360 { "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD, 361 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 362 { "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME, 363 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 364 { "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV, 365 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 366 { "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF, 367 DT_ATTR_STABCMN, DT_VERS_1_0, 368 &dt_idops_func, "int(pid_t)" }, 369 { "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE, 370 DT_ATTR_STABCMN, DT_VERS_1_0, 371 &dt_idops_func, "void(@, ...)" }, 372 { "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0, 373 &dt_idops_func, "void(int)" }, 374 { "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0, 375 &dt_idops_func, "int()" }, 376 { "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 377 &dt_idops_func, "int(const char *, const char *, [int])" }, 378 #if defined(sun) 379 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 380 DT_ATTR_EVOLCMN, DT_VERS_1_0, 381 &dt_idops_func, "int(genunix`krwlock_t *)" }, 382 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 383 DT_ATTR_EVOLCMN, DT_VERS_1_0, 384 &dt_idops_func, "int(genunix`krwlock_t *)" }, 385 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 386 DT_ATTR_EVOLCMN, DT_VERS_1_0, 387 &dt_idops_func, "int(genunix`krwlock_t *)" }, 388 #else 389 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 390 DT_ATTR_EVOLCMN, DT_VERS_1_0, 391 &dt_idops_func, rwlock_str }, 392 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 393 DT_ATTR_EVOLCMN, DT_VERS_1_0, 394 &dt_idops_func, rwlock_str }, 395 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 396 DT_ATTR_EVOLCMN, DT_VERS_1_0, 397 &dt_idops_func, rwlock_str }, 398 #endif 399 { "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 400 &dt_idops_type, "void" }, 401 { "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN, 402 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" }, 403 { "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE, 404 DT_ATTR_STABCMN, DT_VERS_1_0, 405 &dt_idops_func, "void(int)" }, 406 { "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION, 407 DT_ATTR_STABCMN, DT_VERS_1_0, 408 &dt_idops_func, "int()" }, 409 { "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0, 410 &dt_idops_func, "stack(...)" }, 411 { "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH, 412 DT_ATTR_STABCMN, DT_VERS_1_0, 413 &dt_idops_type, "uint32_t" }, 414 { "stddev", DT_IDENT_AGGFUNC, 0, DTRACEAGG_STDDEV, DT_ATTR_STABCMN, 415 DT_VERS_1_6, &dt_idops_func, "void(@)" }, 416 { "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0, 417 &dt_idops_func, "void()" }, 418 { "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 419 &dt_idops_func, "string(const char *, char)" }, 420 { "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0, 421 &dt_idops_func, "size_t(const char *)" }, 422 { "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0, 423 &dt_idops_func, "string(const char *, const char *)" }, 424 { "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 425 &dt_idops_func, "string(const char *, char)" }, 426 { "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 427 &dt_idops_func, "string(const char *, const char *)" }, 428 { "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1, 429 &dt_idops_func, "string(const char *, const char *)" }, 430 { "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 431 &dt_idops_func, "string(const char *, int, [int])" }, 432 { "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0, 433 &dt_idops_func, "void(@)" }, 434 #if !defined(sun) 435 { "sx_isexclusive", DT_IDENT_FUNC, 0, DIF_SUBR_SX_ISEXCLUSIVE, 436 DT_ATTR_EVOLCMN, DT_VERS_1_0, 437 &dt_idops_func, sxlock_str }, 438 { "sx_shared_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_SHARED_HELD, 439 DT_ATTR_EVOLCMN, DT_VERS_1_0, 440 &dt_idops_func, sxlock_str }, 441 { "sx_exclusive_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_EXCLUSIVE_HELD, 442 DT_ATTR_EVOLCMN, DT_VERS_1_0, 443 &dt_idops_func, sxlock_str }, 444 #endif 445 { "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 446 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 447 { "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0, 448 &dt_idops_func, "void(@, ...)" }, 449 { "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 450 &dt_idops_type, "void" }, 451 { "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0, 452 &dt_idops_type, "id_t" }, 453 { "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP, 454 DT_ATTR_STABCMN, DT_VERS_1_0, 455 &dt_idops_type, "uint64_t" }, 456 { "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0, 457 &dt_idops_func, "void(@)" }, 458 { "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM, 459 DT_ATTR_STABCMN, DT_VERS_1_0, 460 &dt_idops_func, "void(@, size_t)" }, 461 { "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN, 462 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 463 { "typeref", DT_IDENT_FUNC, 0, DIF_SUBR_TYPEREF, DT_ATTR_STABCMN, DT_VERS_1_1, 464 &dt_idops_func, "uintptr_t *(void *, size_t, string, size_t)" }, 465 #if defined(sun) 466 { "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN, 467 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 468 { "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN, 469 DT_VERS_1_2, &dt_idops_type, "uint64_t" }, 470 { "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 471 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 472 #endif 473 { "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0, 474 &dt_idops_type, "uid_t" }, 475 #if defined(sun) 476 { "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN, 477 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 478 { "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0, 479 &dt_idops_regs, NULL }, 480 { "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 481 &dt_idops_func, "stack(...)" }, 482 { "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH, 483 DT_ATTR_STABCMN, DT_VERS_1_2, 484 &dt_idops_type, "uint32_t" }, 485 { "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 486 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 487 #endif 488 { "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP, 489 DT_ATTR_STABCMN, DT_VERS_1_0, 490 &dt_idops_type, "uint64_t" }, 491 { "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP, 492 DT_ATTR_STABCMN, DT_VERS_1_0, 493 &dt_idops_type, "int64_t" }, 494 #if defined(sun) 495 { "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME, 496 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 497 #endif 498 { NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL } 499 }; 500 501 /* 502 * Tables of ILP32 intrinsic integer and floating-point type templates to use 503 * to populate the dynamic "C" CTF type container. 504 */ 505 static const dt_intrinsic_t _dtrace_intrinsics_32[] = { 506 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 507 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 508 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 509 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 510 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 511 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 512 { "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 513 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 514 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 515 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 516 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 517 { "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 518 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 519 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 520 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 521 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 522 { "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER }, 523 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 524 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 525 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 526 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 527 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 528 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 529 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 530 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 531 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 532 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 533 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 534 { NULL, { 0, 0, 0 }, 0 } 535 }; 536 537 /* 538 * Tables of LP64 intrinsic integer and floating-point type templates to use 539 * to populate the dynamic "C" CTF type container. 540 */ 541 static const dt_intrinsic_t _dtrace_intrinsics_64[] = { 542 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 543 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 544 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 545 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 546 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 547 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 548 { "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 549 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 550 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 551 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 552 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 553 { "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 554 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 555 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 556 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 557 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 558 { "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER }, 559 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 560 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 561 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 562 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 563 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 564 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 565 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 566 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 567 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 568 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 569 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 570 { NULL, { 0, 0, 0 }, 0 } 571 }; 572 573 /* 574 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container. 575 * These aliases ensure that D definitions can use typical <sys/types.h> names. 576 */ 577 static const dt_typedef_t _dtrace_typedefs_32[] = { 578 { "char", "int8_t" }, 579 { "short", "int16_t" }, 580 { "int", "int32_t" }, 581 { "long long", "int64_t" }, 582 { "int", "intptr_t" }, 583 { "int", "ssize_t" }, 584 { "unsigned char", "uint8_t" }, 585 { "unsigned short", "uint16_t" }, 586 { "unsigned", "uint32_t" }, 587 { "unsigned long long", "uint64_t" }, 588 { "unsigned char", "uchar_t" }, 589 { "unsigned short", "ushort_t" }, 590 { "unsigned", "uint_t" }, 591 { "unsigned long", "ulong_t" }, 592 { "unsigned long long", "u_longlong_t" }, 593 { "int", "ptrdiff_t" }, 594 { "unsigned", "uintptr_t" }, 595 { "unsigned", "size_t" }, 596 { "long", "id_t" }, 597 { "long", "pid_t" }, 598 { NULL, NULL } 599 }; 600 601 /* 602 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container. 603 * These aliases ensure that D definitions can use typical <sys/types.h> names. 604 */ 605 static const dt_typedef_t _dtrace_typedefs_64[] = { 606 { "char", "int8_t" }, 607 { "short", "int16_t" }, 608 { "int", "int32_t" }, 609 { "long", "int64_t" }, 610 { "long", "intptr_t" }, 611 { "long", "ssize_t" }, 612 { "unsigned char", "uint8_t" }, 613 { "unsigned short", "uint16_t" }, 614 { "unsigned", "uint32_t" }, 615 { "unsigned long", "uint64_t" }, 616 { "unsigned char", "uchar_t" }, 617 { "unsigned short", "ushort_t" }, 618 { "unsigned", "uint_t" }, 619 { "unsigned long", "ulong_t" }, 620 { "unsigned long long", "u_longlong_t" }, 621 { "long", "ptrdiff_t" }, 622 { "unsigned long", "uintptr_t" }, 623 { "unsigned long", "size_t" }, 624 { "int", "id_t" }, 625 { "int", "pid_t" }, 626 { NULL, NULL } 627 }; 628 629 /* 630 * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[] 631 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 632 */ 633 static const dt_intdesc_t _dtrace_ints_32[] = { 634 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 635 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 636 { "long", NULL, CTF_ERR, 0x7fffffffULL }, 637 { "unsigned long", NULL, CTF_ERR, 0xffffffffULL }, 638 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 639 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 640 }; 641 642 /* 643 * Tables of LP64 integer type templates used to populate the dtp->dt_ints[] 644 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 645 */ 646 static const dt_intdesc_t _dtrace_ints_64[] = { 647 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 648 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 649 { "long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 650 { "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL }, 651 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 652 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 653 }; 654 655 /* 656 * Table of macro variable templates used to populate the macro identifier hash 657 * when a new dtrace client open occurs. Values are set by dtrace_update(). 658 */ 659 static const dt_ident_t _dtrace_macros[] = { 660 { "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 661 { "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 662 { "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 663 { "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 664 { "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 665 { "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 666 { "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 667 { "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 668 { "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 669 { "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 670 { "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 671 { NULL, 0, 0, 0, { 0, 0, 0 }, 0 } 672 }; 673 674 /* 675 * Hard-wired definition string to be compiled and cached every time a new 676 * DTrace library handle is initialized. This string should only be used to 677 * contain definitions that should be present regardless of DTRACE_O_NOLIBS. 678 */ 679 static const char _dtrace_hardwire[] = "\ 680 inline long NULL = 0; \n\ 681 #pragma D binding \"1.0\" NULL\n\ 682 "; 683 684 /* 685 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV. 686 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel. 687 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are 688 * relying on the fact that when running dtrace(1M), isaexec will invoke the 689 * binary with the same bitness as the kernel, which is what we want by default 690 * when generating our DIF. The user can override the choice using oflags. 691 */ 692 static const dtrace_conf_t _dtrace_conf = { 693 DIF_VERSION, /* dtc_difversion */ 694 DIF_DIR_NREGS, /* dtc_difintregs */ 695 DIF_DTR_NREGS, /* dtc_diftupregs */ 696 CTF_MODEL_NATIVE /* dtc_ctfmodel */ 697 }; 698 699 const dtrace_attribute_t _dtrace_maxattr = { 700 DTRACE_STABILITY_MAX, 701 DTRACE_STABILITY_MAX, 702 DTRACE_CLASS_MAX 703 }; 704 705 const dtrace_attribute_t _dtrace_defattr = { 706 DTRACE_STABILITY_STABLE, 707 DTRACE_STABILITY_STABLE, 708 DTRACE_CLASS_COMMON 709 }; 710 711 const dtrace_attribute_t _dtrace_symattr = { 712 DTRACE_STABILITY_PRIVATE, 713 DTRACE_STABILITY_PRIVATE, 714 DTRACE_CLASS_UNKNOWN 715 }; 716 717 const dtrace_attribute_t _dtrace_typattr = { 718 DTRACE_STABILITY_PRIVATE, 719 DTRACE_STABILITY_PRIVATE, 720 DTRACE_CLASS_UNKNOWN 721 }; 722 723 const dtrace_attribute_t _dtrace_prvattr = { 724 DTRACE_STABILITY_PRIVATE, 725 DTRACE_STABILITY_PRIVATE, 726 DTRACE_CLASS_UNKNOWN 727 }; 728 729 const dtrace_pattr_t _dtrace_prvdesc = { 730 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 731 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 732 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 733 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 734 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 735 }; 736 737 #if defined(sun) 738 const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */ 739 const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */ 740 #else 741 const char *_dtrace_defcpp = "cpp"; /* default cpp(1) to invoke */ 742 const char *_dtrace_defld = "ld"; /* default ld(1) to invoke */ 743 #endif 744 745 const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */ 746 #if defined(sun) 747 const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */ 748 #else 749 const char *_dtrace_provdir = "/dev/dtrace"; /* provider directory */ 750 #endif 751 752 int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */ 753 int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */ 754 uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */ 755 uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */ 756 uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */ 757 uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */ 758 size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */ 759 int _dtrace_argmax = 32; /* default maximum number of probe arguments */ 760 761 int _dtrace_debug = 0; /* debug messages enabled (off) */ 762 const char *const _dtrace_version = DT_VERS_STRING; /* API version string */ 763 #if defined(sun) 764 int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */ 765 #endif 766 767 typedef struct dt_fdlist { 768 int *df_fds; /* array of provider driver file descriptors */ 769 uint_t df_ents; /* number of valid elements in df_fds[] */ 770 uint_t df_size; /* size of df_fds[] */ 771 } dt_fdlist_t; 772 773 #if defined(sun) 774 #pragma init(_dtrace_init) 775 #else 776 void _dtrace_init(void) __attribute__ ((constructor)); 777 #endif 778 void 779 _dtrace_init(void) 780 { 781 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL; 782 783 #if defined(sun) 784 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) { 785 if (rd_init(_dtrace_rdvers) == RD_OK) 786 break; 787 } 788 #endif 789 #if defined(__i386__) 790 /* make long doubles 64 bits -sson */ 791 (void) fpsetprec(FP_PE); 792 #endif 793 } 794 795 static dtrace_hdl_t * 796 set_open_errno(dtrace_hdl_t *dtp, int *errp, int err) 797 { 798 if (dtp != NULL) 799 dtrace_close(dtp); 800 if (errp != NULL) 801 *errp = err; 802 return (NULL); 803 } 804 805 static void 806 dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp) 807 { 808 dt_provmod_t *prov; 809 char path[PATH_MAX]; 810 int fd; 811 #if defined(sun) 812 struct dirent *dp, *ep; 813 DIR *dirp; 814 815 if ((dirp = opendir(_dtrace_provdir)) == NULL) 816 return; /* failed to open directory; just skip it */ 817 818 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1); 819 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1); 820 821 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) { 822 if (dp->d_name[0] == '.') 823 continue; /* skip "." and ".." */ 824 825 if (dfp->df_ents == dfp->df_size) { 826 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 827 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 828 829 if (fds == NULL) 830 break; /* skip the rest of this directory */ 831 832 dfp->df_fds = fds; 833 dfp->df_size = size; 834 } 835 836 (void) snprintf(path, sizeof (path), "%s/%s", 837 _dtrace_provdir, dp->d_name); 838 839 if ((fd = open(path, O_RDONLY)) == -1) 840 continue; /* failed to open driver; just skip it */ 841 842 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 843 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) { 844 free(prov); 845 (void) close(fd); 846 break; 847 } 848 849 (void) strcpy(prov->dp_name, dp->d_name); 850 prov->dp_next = *provmod; 851 *provmod = prov; 852 853 dt_dprintf("opened provider %s\n", dp->d_name); 854 dfp->df_fds[dfp->df_ents++] = fd; 855 } 856 857 (void) closedir(dirp); 858 #else 859 char *p; 860 char *p1; 861 char *p_providers = NULL; 862 int error; 863 size_t len = 0; 864 865 /* 866 * Loop to allocate/reallocate memory for the string of provider 867 * names and retry: 868 */ 869 while(1) { 870 /* 871 * The first time around, get the string length. The next time, 872 * hopefully we've allocated enough memory. 873 */ 874 error = sysctlbyname("debug.dtrace.providers",p_providers,&len,NULL,0); 875 if (len == 0) 876 /* No providers? That's strange. Where's dtrace? */ 877 break; 878 else if (error == 0 && p_providers == NULL) { 879 /* 880 * Allocate the initial memory which should be enough 881 * unless another provider loads before we have 882 * time to go back and get the string. 883 */ 884 if ((p_providers = malloc(len)) == NULL) 885 /* How do we report errors here? */ 886 return; 887 } else if (error == -1 && errno == ENOMEM) { 888 /* 889 * The current buffer isn't large enough, so 890 * reallocate it. We normally won't need to do this 891 * because providers aren't being loaded all the time. 892 */ 893 if ((p = realloc(p_providers,len)) == NULL) 894 /* How do we report errors here? */ 895 return; 896 p_providers = p; 897 } else 898 break; 899 } 900 901 /* Check if we got a string of provider names: */ 902 if (error == 0 && len > 0 && p_providers != NULL) { 903 p = p_providers; 904 905 /* 906 * Parse the string containing the space separated 907 * provider names. 908 */ 909 while ((p1 = strsep(&p," ")) != NULL) { 910 if (dfp->df_ents == dfp->df_size) { 911 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 912 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 913 914 if (fds == NULL) 915 break; 916 917 dfp->df_fds = fds; 918 dfp->df_size = size; 919 } 920 921 (void) snprintf(path, sizeof (path), "/dev/dtrace/%s", p1); 922 923 if ((fd = open(path, O_RDONLY)) == -1) 924 continue; /* failed to open driver; just skip it */ 925 926 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 927 (prov->dp_name = malloc(strlen(p1) + 1)) == NULL) { 928 free(prov); 929 (void) close(fd); 930 break; 931 } 932 933 (void) strcpy(prov->dp_name, p1); 934 prov->dp_next = *provmod; 935 *provmod = prov; 936 937 dt_dprintf("opened provider %s\n", p1); 938 dfp->df_fds[dfp->df_ents++] = fd; 939 } 940 } 941 if (p_providers != NULL) 942 free(p_providers); 943 #endif 944 } 945 946 static void 947 dt_provmod_destroy(dt_provmod_t **provmod) 948 { 949 dt_provmod_t *next, *current; 950 951 for (current = *provmod; current != NULL; current = next) { 952 next = current->dp_next; 953 free(current->dp_name); 954 free(current); 955 } 956 957 *provmod = NULL; 958 } 959 960 #if defined(sun) 961 static const char * 962 dt_get_sysinfo(int cmd, char *buf, size_t len) 963 { 964 ssize_t rv = sysinfo(cmd, buf, len); 965 char *p = buf; 966 967 if (rv < 0 || rv > len) 968 (void) snprintf(buf, len, "%s", "Unknown"); 969 970 while ((p = strchr(p, '.')) != NULL) 971 *p++ = '_'; 972 973 return (buf); 974 } 975 #endif 976 977 static dtrace_hdl_t * 978 dt_vopen(int version, int flags, int *errp, 979 const dtrace_vector_t *vector, void *arg) 980 { 981 dtrace_hdl_t *dtp = NULL; 982 int dtfd = -1, ftfd = -1, fterr = 0; 983 dtrace_prog_t *pgp; 984 dt_module_t *dmp; 985 dt_provmod_t *provmod = NULL; 986 int i, err; 987 struct rlimit rl; 988 989 const dt_intrinsic_t *dinp; 990 const dt_typedef_t *dtyp; 991 const dt_ident_t *idp; 992 993 dtrace_typeinfo_t dtt; 994 ctf_funcinfo_t ctc; 995 ctf_arinfo_t ctr; 996 997 dt_fdlist_t df = { NULL, 0, 0 }; 998 999 char isadef[32], utsdef[32]; 1000 char s1[64], s2[64]; 1001 1002 if (version <= 0) 1003 return (set_open_errno(dtp, errp, EINVAL)); 1004 1005 if (version > DTRACE_VERSION) 1006 return (set_open_errno(dtp, errp, EDT_VERSION)); 1007 1008 if (version < DTRACE_VERSION) { 1009 /* 1010 * Currently, increasing the library version number is used to 1011 * denote a binary incompatible change. That is, a consumer 1012 * of the library cannot run on a version of the library with 1013 * a higher DTRACE_VERSION number than the consumer compiled 1014 * against. Once the library API has been committed to, 1015 * backwards binary compatibility will be required; at that 1016 * time, this check should change to return EDT_OVERSION only 1017 * if the specified version number is less than the version 1018 * number at the time of interface commitment. 1019 */ 1020 return (set_open_errno(dtp, errp, EDT_OVERSION)); 1021 } 1022 1023 if (flags & ~DTRACE_O_MASK) 1024 return (set_open_errno(dtp, errp, EINVAL)); 1025 1026 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32)) 1027 return (set_open_errno(dtp, errp, EINVAL)); 1028 1029 if (vector == NULL && arg != NULL) 1030 return (set_open_errno(dtp, errp, EINVAL)); 1031 1032 if (elf_version(EV_CURRENT) == EV_NONE) 1033 return (set_open_errno(dtp, errp, EDT_ELFVERSION)); 1034 1035 if (vector != NULL || (flags & DTRACE_O_NODEV)) 1036 goto alloc; /* do not attempt to open dtrace device */ 1037 1038 /* 1039 * Before we get going, crank our limit on file descriptors up to the 1040 * hard limit. This is to allow for the fact that libproc keeps file 1041 * descriptors to objects open for the lifetime of the proc handle; 1042 * without raising our hard limit, we would have an acceptably small 1043 * bound on the number of processes that we could concurrently 1044 * instrument with the pid provider. 1045 */ 1046 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) { 1047 rl.rlim_cur = rl.rlim_max; 1048 (void) setrlimit(RLIMIT_NOFILE, &rl); 1049 } 1050 1051 /* 1052 * Get the device path of each of the providers. We hold them open 1053 * in the df.df_fds list until we open the DTrace driver itself, 1054 * allowing us to see all of the probes provided on this system. Once 1055 * we have the DTrace driver open, we can safely close all the providers 1056 * now that they have registered with the framework. 1057 */ 1058 dt_provmod_open(&provmod, &df); 1059 1060 dtfd = open("/dev/dtrace/dtrace", O_RDWR); 1061 err = errno; /* save errno from opening dtfd */ 1062 1063 #if defined(sun) 1064 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR); 1065 #else 1066 ftfd = open("/dev/dtrace/fasttrap", O_RDWR); 1067 #endif 1068 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */ 1069 1070 while (df.df_ents-- != 0) 1071 (void) close(df.df_fds[df.df_ents]); 1072 1073 free(df.df_fds); 1074 1075 /* 1076 * If we failed to open the dtrace device, fail dtrace_open(). 1077 * We convert some kernel errnos to custom libdtrace errnos to 1078 * improve the resulting message from the usual strerror(). 1079 */ 1080 if (dtfd == -1) { 1081 dt_provmod_destroy(&provmod); 1082 switch (err) { 1083 case ENOENT: 1084 err = EDT_NOENT; 1085 break; 1086 case EBUSY: 1087 err = EDT_BUSY; 1088 break; 1089 case EACCES: 1090 err = EDT_ACCESS; 1091 break; 1092 } 1093 return (set_open_errno(dtp, errp, err)); 1094 } 1095 1096 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC); 1097 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC); 1098 1099 alloc: 1100 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL) 1101 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1102 1103 bzero(dtp, sizeof (dtrace_hdl_t)); 1104 dtp->dt_oflags = flags; 1105 dtp->dt_prcmode = DT_PROC_STOP_PREINIT; 1106 dtp->dt_linkmode = DT_LINK_KERNEL; 1107 dtp->dt_linktype = DT_LTYP_ELF; 1108 dtp->dt_xlatemode = DT_XL_STATIC; 1109 dtp->dt_stdcmode = DT_STDC_XA; 1110 dtp->dt_version = version; 1111 dtp->dt_fd = dtfd; 1112 dtp->dt_ftfd = ftfd; 1113 dtp->dt_fterr = fterr; 1114 dtp->dt_cdefs_fd = -1; 1115 dtp->dt_ddefs_fd = -1; 1116 #if defined(sun) 1117 dtp->dt_stdout_fd = -1; 1118 #else 1119 dtp->dt_freopen_fp = NULL; 1120 #endif 1121 dtp->dt_modbuckets = _dtrace_strbuckets; 1122 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *)); 1123 dtp->dt_provbuckets = _dtrace_strbuckets; 1124 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *)); 1125 dt_proc_hash_create(dtp); 1126 dtp->dt_vmax = DT_VERS_LATEST; 1127 dtp->dt_cpp_path = strdup(_dtrace_defcpp); 1128 dtp->dt_cpp_argv = malloc(sizeof (char *)); 1129 dtp->dt_cpp_argc = 1; 1130 dtp->dt_cpp_args = 1; 1131 dtp->dt_ld_path = strdup(_dtrace_defld); 1132 dtp->dt_provmod = provmod; 1133 dtp->dt_vector = vector; 1134 dtp->dt_varg = arg; 1135 dt_dof_init(dtp); 1136 (void) uname(&dtp->dt_uts); 1137 1138 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL || 1139 dtp->dt_procs == NULL || dtp->dt_ld_path == NULL || 1140 dtp->dt_cpp_path == NULL || dtp->dt_cpp_argv == NULL) 1141 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1142 1143 for (i = 0; i < DTRACEOPT_MAX; i++) 1144 dtp->dt_options[i] = DTRACEOPT_UNSET; 1145 1146 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path); 1147 1148 #if defined(sun) 1149 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u", 1150 (uint_t)(sizeof (void *) * NBBY)); 1151 1152 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s", 1153 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)), 1154 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2))); 1155 1156 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL || 1157 dt_cpp_add_arg(dtp, "-D__unix") == NULL || 1158 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL || 1159 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL || 1160 dt_cpp_add_arg(dtp, isadef) == NULL || 1161 dt_cpp_add_arg(dtp, utsdef) == NULL) 1162 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1163 #endif 1164 1165 if (flags & DTRACE_O_NODEV) 1166 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf)); 1167 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0) 1168 return (set_open_errno(dtp, errp, errno)); 1169 1170 if (flags & DTRACE_O_LP64) 1171 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64; 1172 else if (flags & DTRACE_O_ILP32) 1173 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32; 1174 1175 #ifdef __sparc 1176 /* 1177 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h> 1178 * and __sparcv9 is defined if we are doing a 64-bit compile. 1179 */ 1180 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL) 1181 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1182 1183 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 && 1184 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL) 1185 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1186 #endif 1187 1188 #if defined(sun) 1189 #ifdef __x86 1190 /* 1191 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit 1192 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC, 1193 * they are defined exclusive of one another (see PSARC 2004/619). 1194 */ 1195 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 1196 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL) 1197 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1198 } else { 1199 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL) 1200 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1201 } 1202 #endif 1203 #else 1204 #if defined(__amd64__) || defined(__i386__) 1205 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 1206 if (dt_cpp_add_arg(dtp, "-m64") == NULL) 1207 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1208 } else { 1209 if (dt_cpp_add_arg(dtp, "-m32") == NULL) 1210 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1211 } 1212 #endif 1213 #endif 1214 1215 if (dtp->dt_conf.dtc_difversion < DIF_VERSION) 1216 return (set_open_errno(dtp, errp, EDT_DIFVERS)); 1217 1218 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) 1219 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32)); 1220 else 1221 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64)); 1222 1223 /* 1224 * On FreeBSD the kernel module name can't be hard-coded. The 1225 * 'kern.bootfile' sysctl value tells us exactly which file is being 1226 * used as the kernel. 1227 */ 1228 #if !defined(sun) 1229 { 1230 char bootfile[MAXPATHLEN]; 1231 char *p; 1232 int i; 1233 size_t len = sizeof(bootfile); 1234 1235 /* This call shouldn't fail, but use a default just in case. */ 1236 if (sysctlbyname("kern.bootfile", bootfile, &len, NULL, 0) != 0) 1237 strlcpy(bootfile, "kernel", sizeof(bootfile)); 1238 1239 if ((p = strrchr(bootfile, '/')) != NULL) 1240 p++; 1241 else 1242 p = bootfile; 1243 1244 /* 1245 * Format the global variables based on the kernel module name. 1246 */ 1247 snprintf(curthread_str, sizeof(curthread_str), "%s`struct thread *",p); 1248 snprintf(intmtx_str, sizeof(intmtx_str), "int(%s`struct mtx *)",p); 1249 snprintf(threadmtx_str, sizeof(threadmtx_str), "struct thread *(%s`struct mtx *)",p); 1250 snprintf(rwlock_str, sizeof(rwlock_str), "int(%s`struct rwlock *)",p); 1251 snprintf(sxlock_str, sizeof(sxlock_str), "int(%s`struct sxlock *)",p); 1252 } 1253 #endif 1254 1255 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX); 1256 dtp->dt_aggs = dt_idhash_create("aggregation", NULL, 1257 DTRACE_AGGVARIDNONE + 1, UINT_MAX); 1258 1259 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals, 1260 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1261 1262 dtp->dt_tls = dt_idhash_create("thread local", NULL, 1263 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1264 1265 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL || 1266 dtp->dt_globals == NULL || dtp->dt_tls == NULL) 1267 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1268 1269 /* 1270 * Populate the dt_macros identifier hash table by hand: we can't use 1271 * the dt_idhash_populate() mechanism because we're not yet compiling 1272 * and dtrace_update() needs to immediately reference these idents. 1273 */ 1274 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) { 1275 if (dt_idhash_insert(dtp->dt_macros, idp->di_name, 1276 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr, 1277 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw, 1278 idp->di_iarg, 0) == NULL) 1279 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1280 } 1281 1282 /* 1283 * Update the module list using /system/object and load the values for 1284 * the macro variable definitions according to the current process. 1285 */ 1286 dtrace_update(dtp); 1287 1288 /* 1289 * Select the intrinsics and typedefs we want based on the data model. 1290 * The intrinsics are under "C". The typedefs are added under "D". 1291 */ 1292 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) { 1293 dinp = _dtrace_intrinsics_32; 1294 dtyp = _dtrace_typedefs_32; 1295 } else { 1296 dinp = _dtrace_intrinsics_64; 1297 dtyp = _dtrace_typedefs_64; 1298 } 1299 1300 /* 1301 * Create a dynamic CTF container under the "C" scope for intrinsic 1302 * types and types defined in ANSI-C header files that are included. 1303 */ 1304 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL) 1305 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1306 1307 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1308 return (set_open_errno(dtp, errp, EDT_CTF)); 1309 1310 dt_dprintf("created CTF container for %s (%p)\n", 1311 dmp->dm_name, (void *)dmp->dm_ctfp); 1312 1313 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1314 ctf_setspecific(dmp->dm_ctfp, dmp); 1315 1316 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1317 dmp->dm_modid = -1; /* no module ID */ 1318 1319 /* 1320 * Fill the dynamic "C" CTF container with all of the intrinsic 1321 * integer and floating-point types appropriate for this data model. 1322 */ 1323 for (; dinp->din_name != NULL; dinp++) { 1324 if (dinp->din_kind == CTF_K_INTEGER) { 1325 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT, 1326 dinp->din_name, &dinp->din_data); 1327 } else { 1328 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT, 1329 dinp->din_name, &dinp->din_data); 1330 } 1331 1332 if (err == CTF_ERR) { 1333 dt_dprintf("failed to add %s to C container: %s\n", 1334 dinp->din_name, ctf_errmsg( 1335 ctf_errno(dmp->dm_ctfp))); 1336 return (set_open_errno(dtp, errp, EDT_CTF)); 1337 } 1338 } 1339 1340 if (ctf_update(dmp->dm_ctfp) != 0) { 1341 dt_dprintf("failed to update C container: %s\n", 1342 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1343 return (set_open_errno(dtp, errp, EDT_CTF)); 1344 } 1345 1346 /* 1347 * Add intrinsic pointer types that are needed to initialize printf 1348 * format dictionary types (see table in dt_printf.c). 1349 */ 1350 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1351 ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1352 1353 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1354 ctf_lookup_by_name(dmp->dm_ctfp, "char")); 1355 1356 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1357 ctf_lookup_by_name(dmp->dm_ctfp, "int")); 1358 1359 if (ctf_update(dmp->dm_ctfp) != 0) { 1360 dt_dprintf("failed to update C container: %s\n", 1361 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1362 return (set_open_errno(dtp, errp, EDT_CTF)); 1363 } 1364 1365 /* 1366 * Create a dynamic CTF container under the "D" scope for types that 1367 * are defined by the D program itself or on-the-fly by the D compiler. 1368 * The "D" CTF container is a child of the "C" CTF container. 1369 */ 1370 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL) 1371 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1372 1373 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1374 return (set_open_errno(dtp, errp, EDT_CTF)); 1375 1376 dt_dprintf("created CTF container for %s (%p)\n", 1377 dmp->dm_name, (void *)dmp->dm_ctfp); 1378 1379 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1380 ctf_setspecific(dmp->dm_ctfp, dmp); 1381 1382 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1383 dmp->dm_modid = -1; /* no module ID */ 1384 1385 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) { 1386 dt_dprintf("failed to import D parent container: %s\n", 1387 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1388 return (set_open_errno(dtp, errp, EDT_CTF)); 1389 } 1390 1391 /* 1392 * Fill the dynamic "D" CTF container with all of the built-in typedefs 1393 * that we need to use for our D variable and function definitions. 1394 * This ensures that basic inttypes.h names are always available to us. 1395 */ 1396 for (; dtyp->dty_src != NULL; dtyp++) { 1397 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1398 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp, 1399 dtyp->dty_src)) == CTF_ERR) { 1400 dt_dprintf("failed to add typedef %s %s to D " 1401 "container: %s", dtyp->dty_src, dtyp->dty_dst, 1402 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1403 return (set_open_errno(dtp, errp, EDT_CTF)); 1404 } 1405 } 1406 1407 /* 1408 * Insert a CTF ID corresponding to a pointer to a type of kind 1409 * CTF_K_FUNCTION we can use in the compiler for function pointers. 1410 * CTF treats all function pointers as "int (*)()" so we only need one. 1411 */ 1412 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int"); 1413 ctc.ctc_argc = 0; 1414 ctc.ctc_flags = 0; 1415 1416 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp, 1417 CTF_ADD_ROOT, &ctc, NULL); 1418 1419 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp, 1420 CTF_ADD_ROOT, dtp->dt_type_func); 1421 1422 /* 1423 * We also insert CTF definitions for the special D intrinsic types 1424 * string and <DYN> into the D container. The string type is added 1425 * as a typedef of char[n]. The <DYN> type is an alias for void. 1426 * We compare types to these special CTF ids throughout the compiler. 1427 */ 1428 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char"); 1429 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long"); 1430 ctr.ctr_nelems = _dtrace_strsize; 1431 1432 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1433 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr)); 1434 1435 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1436 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1437 1438 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1439 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1440 1441 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1442 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1443 1444 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1445 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1446 1447 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR || 1448 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR || 1449 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR || 1450 dtp->dt_type_usymaddr == CTF_ERR) { 1451 dt_dprintf("failed to add intrinsic to D container: %s\n", 1452 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1453 return (set_open_errno(dtp, errp, EDT_CTF)); 1454 } 1455 1456 if (ctf_update(dmp->dm_ctfp) != 0) { 1457 dt_dprintf("failed update D container: %s\n", 1458 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1459 return (set_open_errno(dtp, errp, EDT_CTF)); 1460 } 1461 1462 /* 1463 * Initialize the integer description table used to convert integer 1464 * constants to the appropriate types. Refer to the comments above 1465 * dt_node_int() for a complete description of how this table is used. 1466 */ 1467 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) { 1468 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY, 1469 dtp->dt_ints[i].did_name, &dtt) != 0) { 1470 dt_dprintf("failed to lookup integer type %s: %s\n", 1471 dtp->dt_ints[i].did_name, 1472 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1473 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1474 } 1475 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp; 1476 dtp->dt_ints[i].did_type = dtt.dtt_type; 1477 } 1478 1479 /* 1480 * Now that we've created the "C" and "D" containers, move them to the 1481 * start of the module list so that these types and symbols are found 1482 * first (for stability) when iterating through the module list. 1483 */ 1484 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs); 1485 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs); 1486 1487 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs); 1488 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs); 1489 1490 if (dt_pfdict_create(dtp) == -1) 1491 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1492 1493 /* 1494 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default 1495 * because without /dev/dtrace open, we will not be able to load the 1496 * names and attributes of any providers or probes from the kernel. 1497 */ 1498 if (flags & DTRACE_O_NODEV) 1499 dtp->dt_cflags |= DTRACE_C_ZDEFS; 1500 1501 /* 1502 * Load hard-wired inlines into the definition cache by calling the 1503 * compiler on the raw definition string defined above. 1504 */ 1505 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire, 1506 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) { 1507 dt_dprintf("failed to load hard-wired definitions: %s\n", 1508 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1509 return (set_open_errno(dtp, errp, EDT_HARDWIRE)); 1510 } 1511 1512 dt_program_destroy(dtp, pgp); 1513 1514 /* 1515 * Set up the default DTrace library path. Once set, the next call to 1516 * dt_compile() will compile all the libraries. We intentionally defer 1517 * library processing to improve overhead for clients that don't ever 1518 * compile, and to provide better error reporting (because the full 1519 * reporting of compiler errors requires dtrace_open() to succeed). 1520 */ 1521 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0) 1522 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1523 1524 return (dtp); 1525 } 1526 1527 dtrace_hdl_t * 1528 dtrace_open(int version, int flags, int *errp) 1529 { 1530 return (dt_vopen(version, flags, errp, NULL, NULL)); 1531 } 1532 1533 dtrace_hdl_t * 1534 dtrace_vopen(int version, int flags, int *errp, 1535 const dtrace_vector_t *vector, void *arg) 1536 { 1537 return (dt_vopen(version, flags, errp, vector, arg)); 1538 } 1539 1540 void 1541 dtrace_close(dtrace_hdl_t *dtp) 1542 { 1543 dt_ident_t *idp, *ndp; 1544 dt_module_t *dmp; 1545 dt_provider_t *pvp; 1546 dtrace_prog_t *pgp; 1547 dt_xlator_t *dxp; 1548 dt_dirpath_t *dirp; 1549 int i; 1550 1551 if (dtp->dt_procs != NULL) 1552 dt_proc_hash_destroy(dtp); 1553 1554 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL) 1555 dt_program_destroy(dtp, pgp); 1556 1557 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL) 1558 dt_xlator_destroy(dtp, dxp); 1559 1560 dt_free(dtp, dtp->dt_xlatormap); 1561 1562 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) { 1563 ndp = idp->di_next; 1564 dt_ident_destroy(idp); 1565 } 1566 1567 if (dtp->dt_macros != NULL) 1568 dt_idhash_destroy(dtp->dt_macros); 1569 if (dtp->dt_aggs != NULL) 1570 dt_idhash_destroy(dtp->dt_aggs); 1571 if (dtp->dt_globals != NULL) 1572 dt_idhash_destroy(dtp->dt_globals); 1573 if (dtp->dt_tls != NULL) 1574 dt_idhash_destroy(dtp->dt_tls); 1575 1576 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL) 1577 dt_module_destroy(dtp, dmp); 1578 1579 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL) 1580 dt_provider_destroy(dtp, pvp); 1581 1582 if (dtp->dt_fd != -1) 1583 (void) close(dtp->dt_fd); 1584 if (dtp->dt_ftfd != -1) 1585 (void) close(dtp->dt_ftfd); 1586 if (dtp->dt_cdefs_fd != -1) 1587 (void) close(dtp->dt_cdefs_fd); 1588 if (dtp->dt_ddefs_fd != -1) 1589 (void) close(dtp->dt_ddefs_fd); 1590 #if defined(sun) 1591 if (dtp->dt_stdout_fd != -1) 1592 (void) close(dtp->dt_stdout_fd); 1593 #else 1594 if (dtp->dt_freopen_fp != NULL) 1595 (void) fclose(dtp->dt_freopen_fp); 1596 #endif 1597 1598 dt_epid_destroy(dtp); 1599 dt_aggid_destroy(dtp); 1600 dt_format_destroy(dtp); 1601 dt_buffered_destroy(dtp); 1602 dt_aggregate_destroy(dtp); 1603 free(dtp->dt_buf.dtbd_data); 1604 dt_pfdict_destroy(dtp); 1605 dt_provmod_destroy(&dtp->dt_provmod); 1606 dt_dof_fini(dtp); 1607 1608 for (i = 1; i < dtp->dt_cpp_argc; i++) 1609 free(dtp->dt_cpp_argv[i]); 1610 1611 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) { 1612 dt_list_delete(&dtp->dt_lib_path, dirp); 1613 free(dirp->dir_path); 1614 free(dirp); 1615 } 1616 1617 free(dtp->dt_cpp_argv); 1618 free(dtp->dt_cpp_path); 1619 free(dtp->dt_ld_path); 1620 1621 free(dtp->dt_mods); 1622 free(dtp->dt_provs); 1623 free(dtp); 1624 } 1625 1626 int 1627 dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods) 1628 { 1629 dt_provmod_t *prov; 1630 int i = 0; 1631 1632 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) { 1633 if (i < nmods) 1634 mods[i] = prov->dp_name; 1635 } 1636 1637 return (i); 1638 } 1639 1640 int 1641 dtrace_ctlfd(dtrace_hdl_t *dtp) 1642 { 1643 return (dtp->dt_fd); 1644 } 1645