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 { "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 287 &dt_idops_func, "stack(...)" }, 288 { "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0, 289 &dt_idops_func, "string(int64_t)" }, 290 { "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE, 291 DT_ATTR_STABCMN, DT_VERS_1_0, 292 &dt_idops_func, "void(@, int32_t, int32_t, ...)" }, 293 { "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0, 294 &dt_idops_func, "void(@)" }, 295 { "memref", DT_IDENT_FUNC, 0, DIF_SUBR_MEMREF, DT_ATTR_STABCMN, DT_VERS_1_1, 296 &dt_idops_func, "uintptr_t *(void *, size_t)" }, 297 { "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0, 298 &dt_idops_func, "void(@)" }, 299 { "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN, 300 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 301 { "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE, 302 DT_ATTR_STABCMN, DT_VERS_1_0, 303 &dt_idops_func, "size_t(mblk_t *)" }, 304 { "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE, 305 DT_ATTR_STABCMN, DT_VERS_1_0, 306 &dt_idops_func, "size_t(mblk_t *)" }, 307 #if defined(sun) 308 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 309 DT_ATTR_EVOLCMN, DT_VERS_1_0, 310 &dt_idops_func, "int(genunix`kmutex_t *)" }, 311 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 312 DT_ATTR_EVOLCMN, DT_VERS_1_0, 313 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" }, 314 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 315 DT_ATTR_EVOLCMN, DT_VERS_1_0, 316 &dt_idops_func, "int(genunix`kmutex_t *)" }, 317 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 318 DT_ATTR_EVOLCMN, DT_VERS_1_0, 319 &dt_idops_func, "int(genunix`kmutex_t *)" }, 320 #else 321 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 322 DT_ATTR_EVOLCMN, DT_VERS_1_0, 323 &dt_idops_func, intmtx_str }, 324 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 325 DT_ATTR_EVOLCMN, DT_VERS_1_0, 326 &dt_idops_func, threadmtx_str }, 327 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 328 DT_ATTR_EVOLCMN, DT_VERS_1_0, 329 &dt_idops_func, intmtx_str }, 330 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 331 DT_ATTR_EVOLCMN, DT_VERS_1_0, 332 &dt_idops_func, intmtx_str }, 333 #endif 334 { "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 335 &dt_idops_func, "uint32_t(uint32_t)" }, 336 { "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 337 &dt_idops_func, "uint64_t(uint64_t)" }, 338 { "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 339 &dt_idops_func, "uint16_t(uint16_t)" }, 340 { "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN, 341 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 342 { "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0, 343 &dt_idops_func, "void()" }, 344 { "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0, 345 &dt_idops_type, "pid_t" }, 346 { "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0, 347 &dt_idops_type, "pid_t" }, 348 { "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0, 349 &dt_idops_func, "void(@, ...)" }, 350 { "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0, 351 &dt_idops_func, "void(@, ...)" }, 352 { "printm", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTM, DT_ATTR_STABCMN, DT_VERS_1_0, 353 &dt_idops_func, "void(size_t, uintptr_t *)" }, 354 { "printt", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTT, DT_ATTR_STABCMN, DT_VERS_1_0, 355 &dt_idops_func, "void(size_t, uintptr_t *)" }, 356 { "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC, 357 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 358 { "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD, 359 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 360 { "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME, 361 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 362 { "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV, 363 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 364 { "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF, 365 DT_ATTR_STABCMN, DT_VERS_1_0, 366 &dt_idops_func, "int(pid_t)" }, 367 { "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE, 368 DT_ATTR_STABCMN, DT_VERS_1_0, 369 &dt_idops_func, "void(@, ...)" }, 370 { "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0, 371 &dt_idops_func, "void(int)" }, 372 { "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0, 373 &dt_idops_func, "int()" }, 374 { "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 375 &dt_idops_func, "int(const char *, const char *, [int])" }, 376 #if defined(sun) 377 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 378 DT_ATTR_EVOLCMN, DT_VERS_1_0, 379 &dt_idops_func, "int(genunix`krwlock_t *)" }, 380 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 381 DT_ATTR_EVOLCMN, DT_VERS_1_0, 382 &dt_idops_func, "int(genunix`krwlock_t *)" }, 383 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 384 DT_ATTR_EVOLCMN, DT_VERS_1_0, 385 &dt_idops_func, "int(genunix`krwlock_t *)" }, 386 #else 387 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 388 DT_ATTR_EVOLCMN, DT_VERS_1_0, 389 &dt_idops_func, rwlock_str }, 390 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 391 DT_ATTR_EVOLCMN, DT_VERS_1_0, 392 &dt_idops_func, rwlock_str }, 393 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 394 DT_ATTR_EVOLCMN, DT_VERS_1_0, 395 &dt_idops_func, rwlock_str }, 396 #endif 397 { "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 398 &dt_idops_type, "void" }, 399 { "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN, 400 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" }, 401 { "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE, 402 DT_ATTR_STABCMN, DT_VERS_1_0, 403 &dt_idops_func, "void(int)" }, 404 { "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION, 405 DT_ATTR_STABCMN, DT_VERS_1_0, 406 &dt_idops_func, "int()" }, 407 { "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0, 408 &dt_idops_func, "stack(...)" }, 409 { "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH, 410 DT_ATTR_STABCMN, DT_VERS_1_0, 411 &dt_idops_type, "uint32_t" }, 412 { "stddev", DT_IDENT_AGGFUNC, 0, DTRACEAGG_STDDEV, DT_ATTR_STABCMN, 413 DT_VERS_1_6, &dt_idops_func, "void(@)" }, 414 { "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0, 415 &dt_idops_func, "void()" }, 416 { "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 417 &dt_idops_func, "string(const char *, char)" }, 418 { "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0, 419 &dt_idops_func, "size_t(const char *)" }, 420 { "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0, 421 &dt_idops_func, "string(const char *, const char *)" }, 422 { "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 423 &dt_idops_func, "string(const char *, char)" }, 424 { "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 425 &dt_idops_func, "string(const char *, const char *)" }, 426 { "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1, 427 &dt_idops_func, "string(const char *, const char *)" }, 428 { "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 429 &dt_idops_func, "string(const char *, int, [int])" }, 430 { "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0, 431 &dt_idops_func, "void(@)" }, 432 #if !defined(sun) 433 { "sx_isexclusive", DT_IDENT_FUNC, 0, DIF_SUBR_SX_ISEXCLUSIVE, 434 DT_ATTR_EVOLCMN, DT_VERS_1_0, 435 &dt_idops_func, sxlock_str }, 436 { "sx_shared_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_SHARED_HELD, 437 DT_ATTR_EVOLCMN, DT_VERS_1_0, 438 &dt_idops_func, sxlock_str }, 439 { "sx_exclusive_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_EXCLUSIVE_HELD, 440 DT_ATTR_EVOLCMN, DT_VERS_1_0, 441 &dt_idops_func, sxlock_str }, 442 #endif 443 { "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 444 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 445 { "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0, 446 &dt_idops_func, "void(@, ...)" }, 447 { "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 448 &dt_idops_type, "void" }, 449 { "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0, 450 &dt_idops_type, "id_t" }, 451 { "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP, 452 DT_ATTR_STABCMN, DT_VERS_1_0, 453 &dt_idops_type, "uint64_t" }, 454 { "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0, 455 &dt_idops_func, "void(@)" }, 456 { "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM, 457 DT_ATTR_STABCMN, DT_VERS_1_0, 458 &dt_idops_func, "void(@, size_t)" }, 459 { "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN, 460 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 461 { "typeref", DT_IDENT_FUNC, 0, DIF_SUBR_TYPEREF, DT_ATTR_STABCMN, DT_VERS_1_1, 462 &dt_idops_func, "uintptr_t *(void *, size_t, string, size_t)" }, 463 #if defined(sun) 464 { "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN, 465 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 466 #endif 467 { "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN, 468 DT_VERS_1_2, &dt_idops_type, "uint64_t" }, 469 #if defined(sun) 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 #endif 479 { "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0, 480 &dt_idops_regs, NULL }, 481 { "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 482 &dt_idops_func, "stack(...)" }, 483 { "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH, 484 DT_ATTR_STABCMN, DT_VERS_1_2, 485 &dt_idops_type, "uint32_t" }, 486 #if defined(sun) 487 { "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 488 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 489 #endif 490 { "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP, 491 DT_ATTR_STABCMN, DT_VERS_1_0, 492 &dt_idops_type, "uint64_t" }, 493 { "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP, 494 DT_ATTR_STABCMN, DT_VERS_1_0, 495 &dt_idops_type, "int64_t" }, 496 #if defined(sun) 497 { "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME, 498 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 499 #endif 500 501 #if !defined(sun) 502 { "cpu", DT_IDENT_SCALAR, 0, DIF_VAR_CPU, 503 DT_ATTR_STABCMN, DT_VERS_1_6_3, &dt_idops_type, "int" }, 504 #endif 505 506 { NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL } 507 }; 508 509 /* 510 * Tables of ILP32 intrinsic integer and floating-point type templates to use 511 * to populate the dynamic "C" CTF type container. 512 */ 513 static const dt_intrinsic_t _dtrace_intrinsics_32[] = { 514 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 515 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 516 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 517 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 518 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 519 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 520 { "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 521 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 522 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 523 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 524 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 525 { "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 526 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 527 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 528 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 529 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 530 { "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER }, 531 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 532 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 533 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 534 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 535 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 536 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 537 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 538 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 539 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 540 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 541 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 542 { NULL, { 0, 0, 0 }, 0 } 543 }; 544 545 /* 546 * Tables of LP64 intrinsic integer and floating-point type templates to use 547 * to populate the dynamic "C" CTF type container. 548 */ 549 static const dt_intrinsic_t _dtrace_intrinsics_64[] = { 550 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 551 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 552 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 553 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 554 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 555 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 556 { "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 557 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 558 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 559 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 560 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 561 { "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 562 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 563 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 564 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 565 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 566 { "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER }, 567 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 568 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 569 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 570 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 571 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 572 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 573 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 574 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 575 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 576 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 577 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 578 { NULL, { 0, 0, 0 }, 0 } 579 }; 580 581 /* 582 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container. 583 * These aliases ensure that D definitions can use typical <sys/types.h> names. 584 */ 585 static const dt_typedef_t _dtrace_typedefs_32[] = { 586 { "char", "int8_t" }, 587 { "short", "int16_t" }, 588 { "int", "int32_t" }, 589 { "long long", "int64_t" }, 590 { "int", "intptr_t" }, 591 { "int", "ssize_t" }, 592 { "unsigned char", "uint8_t" }, 593 { "unsigned short", "uint16_t" }, 594 { "unsigned", "uint32_t" }, 595 { "unsigned long long", "uint64_t" }, 596 { "unsigned char", "uchar_t" }, 597 { "unsigned short", "ushort_t" }, 598 { "unsigned", "uint_t" }, 599 { "unsigned long", "ulong_t" }, 600 { "unsigned long long", "u_longlong_t" }, 601 { "int", "ptrdiff_t" }, 602 { "unsigned", "uintptr_t" }, 603 { "unsigned", "size_t" }, 604 { "long", "id_t" }, 605 { "long", "pid_t" }, 606 { NULL, NULL } 607 }; 608 609 /* 610 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container. 611 * These aliases ensure that D definitions can use typical <sys/types.h> names. 612 */ 613 static const dt_typedef_t _dtrace_typedefs_64[] = { 614 { "char", "int8_t" }, 615 { "short", "int16_t" }, 616 { "int", "int32_t" }, 617 { "long", "int64_t" }, 618 { "long", "intptr_t" }, 619 { "long", "ssize_t" }, 620 { "unsigned char", "uint8_t" }, 621 { "unsigned short", "uint16_t" }, 622 { "unsigned", "uint32_t" }, 623 { "unsigned long", "uint64_t" }, 624 { "unsigned char", "uchar_t" }, 625 { "unsigned short", "ushort_t" }, 626 { "unsigned", "uint_t" }, 627 { "unsigned long", "ulong_t" }, 628 { "unsigned long long", "u_longlong_t" }, 629 { "long", "ptrdiff_t" }, 630 { "unsigned long", "uintptr_t" }, 631 { "unsigned long", "size_t" }, 632 { "int", "id_t" }, 633 { "int", "pid_t" }, 634 { NULL, NULL } 635 }; 636 637 /* 638 * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[] 639 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 640 */ 641 static const dt_intdesc_t _dtrace_ints_32[] = { 642 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 643 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 644 { "long", NULL, CTF_ERR, 0x7fffffffULL }, 645 { "unsigned long", NULL, CTF_ERR, 0xffffffffULL }, 646 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 647 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 648 }; 649 650 /* 651 * Tables of LP64 integer type templates used to populate the dtp->dt_ints[] 652 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 653 */ 654 static const dt_intdesc_t _dtrace_ints_64[] = { 655 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 656 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 657 { "long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 658 { "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL }, 659 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 660 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 661 }; 662 663 /* 664 * Table of macro variable templates used to populate the macro identifier hash 665 * when a new dtrace client open occurs. Values are set by dtrace_update(). 666 */ 667 static const dt_ident_t _dtrace_macros[] = { 668 { "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 669 { "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 670 { "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 671 { "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 672 { "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 673 { "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 674 { "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 675 { "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 676 { "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 677 { "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 678 { "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 679 { NULL, 0, 0, 0, { 0, 0, 0 }, 0 } 680 }; 681 682 /* 683 * Hard-wired definition string to be compiled and cached every time a new 684 * DTrace library handle is initialized. This string should only be used to 685 * contain definitions that should be present regardless of DTRACE_O_NOLIBS. 686 */ 687 static const char _dtrace_hardwire[] = "\ 688 inline long NULL = 0; \n\ 689 #pragma D binding \"1.0\" NULL\n\ 690 "; 691 692 /* 693 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV. 694 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel. 695 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are 696 * relying on the fact that when running dtrace(1M), isaexec will invoke the 697 * binary with the same bitness as the kernel, which is what we want by default 698 * when generating our DIF. The user can override the choice using oflags. 699 */ 700 static const dtrace_conf_t _dtrace_conf = { 701 DIF_VERSION, /* dtc_difversion */ 702 DIF_DIR_NREGS, /* dtc_difintregs */ 703 DIF_DTR_NREGS, /* dtc_diftupregs */ 704 CTF_MODEL_NATIVE /* dtc_ctfmodel */ 705 }; 706 707 const dtrace_attribute_t _dtrace_maxattr = { 708 DTRACE_STABILITY_MAX, 709 DTRACE_STABILITY_MAX, 710 DTRACE_CLASS_MAX 711 }; 712 713 const dtrace_attribute_t _dtrace_defattr = { 714 DTRACE_STABILITY_STABLE, 715 DTRACE_STABILITY_STABLE, 716 DTRACE_CLASS_COMMON 717 }; 718 719 const dtrace_attribute_t _dtrace_symattr = { 720 DTRACE_STABILITY_PRIVATE, 721 DTRACE_STABILITY_PRIVATE, 722 DTRACE_CLASS_UNKNOWN 723 }; 724 725 const dtrace_attribute_t _dtrace_typattr = { 726 DTRACE_STABILITY_PRIVATE, 727 DTRACE_STABILITY_PRIVATE, 728 DTRACE_CLASS_UNKNOWN 729 }; 730 731 const dtrace_attribute_t _dtrace_prvattr = { 732 DTRACE_STABILITY_PRIVATE, 733 DTRACE_STABILITY_PRIVATE, 734 DTRACE_CLASS_UNKNOWN 735 }; 736 737 const dtrace_pattr_t _dtrace_prvdesc = { 738 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 739 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 740 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 741 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 742 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 743 }; 744 745 #if defined(sun) 746 const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */ 747 const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */ 748 #else 749 const char *_dtrace_defcpp = "cpp"; /* default cpp(1) to invoke */ 750 const char *_dtrace_defld = "ld"; /* default ld(1) to invoke */ 751 #endif 752 753 const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */ 754 #if defined(sun) 755 const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */ 756 #else 757 const char *_dtrace_provdir = "/dev/dtrace"; /* provider directory */ 758 #endif 759 760 int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */ 761 int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */ 762 uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */ 763 uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */ 764 uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */ 765 uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */ 766 size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */ 767 int _dtrace_argmax = 32; /* default maximum number of probe arguments */ 768 769 int _dtrace_debug = 0; /* debug messages enabled (off) */ 770 const char *const _dtrace_version = DT_VERS_STRING; /* API version string */ 771 int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */ 772 773 typedef struct dt_fdlist { 774 int *df_fds; /* array of provider driver file descriptors */ 775 uint_t df_ents; /* number of valid elements in df_fds[] */ 776 uint_t df_size; /* size of df_fds[] */ 777 } dt_fdlist_t; 778 779 #if defined(sun) 780 #pragma init(_dtrace_init) 781 #else 782 void _dtrace_init(void) __attribute__ ((constructor)); 783 #endif 784 void 785 _dtrace_init(void) 786 { 787 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL; 788 789 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) { 790 if (rd_init(_dtrace_rdvers) == RD_OK) 791 break; 792 } 793 #if defined(__i386__) 794 /* make long doubles 64 bits -sson */ 795 (void) fpsetprec(FP_PE); 796 #endif 797 } 798 799 static dtrace_hdl_t * 800 set_open_errno(dtrace_hdl_t *dtp, int *errp, int err) 801 { 802 if (dtp != NULL) 803 dtrace_close(dtp); 804 if (errp != NULL) 805 *errp = err; 806 return (NULL); 807 } 808 809 static void 810 dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp) 811 { 812 dt_provmod_t *prov; 813 char path[PATH_MAX]; 814 int fd; 815 #if defined(sun) 816 struct dirent *dp, *ep; 817 DIR *dirp; 818 819 if ((dirp = opendir(_dtrace_provdir)) == NULL) 820 return; /* failed to open directory; just skip it */ 821 822 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1); 823 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1); 824 825 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) { 826 if (dp->d_name[0] == '.') 827 continue; /* skip "." and ".." */ 828 829 if (dfp->df_ents == dfp->df_size) { 830 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 831 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 832 833 if (fds == NULL) 834 break; /* skip the rest of this directory */ 835 836 dfp->df_fds = fds; 837 dfp->df_size = size; 838 } 839 840 (void) snprintf(path, sizeof (path), "%s/%s", 841 _dtrace_provdir, dp->d_name); 842 843 if ((fd = open(path, O_RDONLY)) == -1) 844 continue; /* failed to open driver; just skip it */ 845 846 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 847 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) { 848 free(prov); 849 (void) close(fd); 850 break; 851 } 852 853 (void) strcpy(prov->dp_name, dp->d_name); 854 prov->dp_next = *provmod; 855 *provmod = prov; 856 857 dt_dprintf("opened provider %s\n", dp->d_name); 858 dfp->df_fds[dfp->df_ents++] = fd; 859 } 860 861 (void) closedir(dirp); 862 #else 863 char *p; 864 char *p1; 865 char *p_providers = NULL; 866 int error; 867 size_t len = 0; 868 869 /* 870 * Loop to allocate/reallocate memory for the string of provider 871 * names and retry: 872 */ 873 while(1) { 874 /* 875 * The first time around, get the string length. The next time, 876 * hopefully we've allocated enough memory. 877 */ 878 error = sysctlbyname("debug.dtrace.providers",p_providers,&len,NULL,0); 879 if (len == 0) 880 /* No providers? That's strange. Where's dtrace? */ 881 break; 882 else if (error == 0 && p_providers == NULL) { 883 /* 884 * Allocate the initial memory which should be enough 885 * unless another provider loads before we have 886 * time to go back and get the string. 887 */ 888 if ((p_providers = malloc(len)) == NULL) 889 /* How do we report errors here? */ 890 return; 891 } else if (error == -1 && errno == ENOMEM) { 892 /* 893 * The current buffer isn't large enough, so 894 * reallocate it. We normally won't need to do this 895 * because providers aren't being loaded all the time. 896 */ 897 if ((p = realloc(p_providers,len)) == NULL) 898 /* How do we report errors here? */ 899 return; 900 p_providers = p; 901 } else 902 break; 903 } 904 905 /* Check if we got a string of provider names: */ 906 if (error == 0 && len > 0 && p_providers != NULL) { 907 p = p_providers; 908 909 /* 910 * Parse the string containing the space separated 911 * provider names. 912 */ 913 while ((p1 = strsep(&p," ")) != NULL) { 914 if (dfp->df_ents == dfp->df_size) { 915 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 916 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 917 918 if (fds == NULL) 919 break; 920 921 dfp->df_fds = fds; 922 dfp->df_size = size; 923 } 924 925 (void) snprintf(path, sizeof (path), "/dev/dtrace/%s", p1); 926 927 if ((fd = open(path, O_RDONLY)) == -1) 928 continue; /* failed to open driver; just skip it */ 929 930 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 931 (prov->dp_name = malloc(strlen(p1) + 1)) == NULL) { 932 free(prov); 933 (void) close(fd); 934 break; 935 } 936 937 (void) strcpy(prov->dp_name, p1); 938 prov->dp_next = *provmod; 939 *provmod = prov; 940 941 dt_dprintf("opened provider %s\n", p1); 942 dfp->df_fds[dfp->df_ents++] = fd; 943 } 944 } 945 if (p_providers != NULL) 946 free(p_providers); 947 #endif 948 } 949 950 static void 951 dt_provmod_destroy(dt_provmod_t **provmod) 952 { 953 dt_provmod_t *next, *current; 954 955 for (current = *provmod; current != NULL; current = next) { 956 next = current->dp_next; 957 free(current->dp_name); 958 free(current); 959 } 960 961 *provmod = NULL; 962 } 963 964 #if defined(sun) 965 static const char * 966 dt_get_sysinfo(int cmd, char *buf, size_t len) 967 { 968 ssize_t rv = sysinfo(cmd, buf, len); 969 char *p = buf; 970 971 if (rv < 0 || rv > len) 972 (void) snprintf(buf, len, "%s", "Unknown"); 973 974 while ((p = strchr(p, '.')) != NULL) 975 *p++ = '_'; 976 977 return (buf); 978 } 979 #endif 980 981 static dtrace_hdl_t * 982 dt_vopen(int version, int flags, int *errp, 983 const dtrace_vector_t *vector, void *arg) 984 { 985 dtrace_hdl_t *dtp = NULL; 986 int dtfd = -1, ftfd = -1, fterr = 0; 987 dtrace_prog_t *pgp; 988 dt_module_t *dmp; 989 dt_provmod_t *provmod = NULL; 990 int i, err; 991 struct rlimit rl; 992 993 const dt_intrinsic_t *dinp; 994 const dt_typedef_t *dtyp; 995 const dt_ident_t *idp; 996 997 dtrace_typeinfo_t dtt; 998 ctf_funcinfo_t ctc; 999 ctf_arinfo_t ctr; 1000 1001 dt_fdlist_t df = { NULL, 0, 0 }; 1002 1003 char isadef[32], utsdef[32]; 1004 char s1[64], s2[64]; 1005 1006 if (version <= 0) 1007 return (set_open_errno(dtp, errp, EINVAL)); 1008 1009 if (version > DTRACE_VERSION) 1010 return (set_open_errno(dtp, errp, EDT_VERSION)); 1011 1012 if (version < DTRACE_VERSION) { 1013 /* 1014 * Currently, increasing the library version number is used to 1015 * denote a binary incompatible change. That is, a consumer 1016 * of the library cannot run on a version of the library with 1017 * a higher DTRACE_VERSION number than the consumer compiled 1018 * against. Once the library API has been committed to, 1019 * backwards binary compatibility will be required; at that 1020 * time, this check should change to return EDT_OVERSION only 1021 * if the specified version number is less than the version 1022 * number at the time of interface commitment. 1023 */ 1024 return (set_open_errno(dtp, errp, EDT_OVERSION)); 1025 } 1026 1027 if (flags & ~DTRACE_O_MASK) 1028 return (set_open_errno(dtp, errp, EINVAL)); 1029 1030 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32)) 1031 return (set_open_errno(dtp, errp, EINVAL)); 1032 1033 if (vector == NULL && arg != NULL) 1034 return (set_open_errno(dtp, errp, EINVAL)); 1035 1036 if (elf_version(EV_CURRENT) == EV_NONE) 1037 return (set_open_errno(dtp, errp, EDT_ELFVERSION)); 1038 1039 if (vector != NULL || (flags & DTRACE_O_NODEV)) 1040 goto alloc; /* do not attempt to open dtrace device */ 1041 1042 /* 1043 * Before we get going, crank our limit on file descriptors up to the 1044 * hard limit. This is to allow for the fact that libproc keeps file 1045 * descriptors to objects open for the lifetime of the proc handle; 1046 * without raising our hard limit, we would have an acceptably small 1047 * bound on the number of processes that we could concurrently 1048 * instrument with the pid provider. 1049 */ 1050 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) { 1051 rl.rlim_cur = rl.rlim_max; 1052 (void) setrlimit(RLIMIT_NOFILE, &rl); 1053 } 1054 1055 /* 1056 * Get the device path of each of the providers. We hold them open 1057 * in the df.df_fds list until we open the DTrace driver itself, 1058 * allowing us to see all of the probes provided on this system. Once 1059 * we have the DTrace driver open, we can safely close all the providers 1060 * now that they have registered with the framework. 1061 */ 1062 dt_provmod_open(&provmod, &df); 1063 1064 dtfd = open("/dev/dtrace/dtrace", O_RDWR); 1065 err = errno; /* save errno from opening dtfd */ 1066 1067 #if defined(sun) 1068 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR); 1069 #else 1070 ftfd = open("/dev/dtrace/fasttrap", O_RDWR); 1071 #endif 1072 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */ 1073 1074 while (df.df_ents-- != 0) 1075 (void) close(df.df_fds[df.df_ents]); 1076 1077 free(df.df_fds); 1078 1079 /* 1080 * If we failed to open the dtrace device, fail dtrace_open(). 1081 * We convert some kernel errnos to custom libdtrace errnos to 1082 * improve the resulting message from the usual strerror(). 1083 */ 1084 if (dtfd == -1) { 1085 dt_provmod_destroy(&provmod); 1086 switch (err) { 1087 case ENOENT: 1088 err = EDT_NOENT; 1089 break; 1090 case EBUSY: 1091 err = EDT_BUSY; 1092 break; 1093 case EACCES: 1094 err = EDT_ACCESS; 1095 break; 1096 } 1097 return (set_open_errno(dtp, errp, err)); 1098 } 1099 1100 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC); 1101 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC); 1102 1103 alloc: 1104 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL) 1105 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1106 1107 bzero(dtp, sizeof (dtrace_hdl_t)); 1108 dtp->dt_oflags = flags; 1109 #if defined(sun) 1110 dtp->dt_prcmode = DT_PROC_STOP_PREINIT; 1111 #else 1112 dtp->dt_prcmode = DT_PROC_STOP_MAIN; 1113 #endif 1114 dtp->dt_linkmode = DT_LINK_KERNEL; 1115 dtp->dt_linktype = DT_LTYP_ELF; 1116 dtp->dt_xlatemode = DT_XL_STATIC; 1117 dtp->dt_stdcmode = DT_STDC_XA; 1118 dtp->dt_version = version; 1119 dtp->dt_fd = dtfd; 1120 dtp->dt_ftfd = ftfd; 1121 dtp->dt_fterr = fterr; 1122 dtp->dt_cdefs_fd = -1; 1123 dtp->dt_ddefs_fd = -1; 1124 #if defined(sun) 1125 dtp->dt_stdout_fd = -1; 1126 #else 1127 dtp->dt_freopen_fp = NULL; 1128 #endif 1129 dtp->dt_modbuckets = _dtrace_strbuckets; 1130 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *)); 1131 dtp->dt_provbuckets = _dtrace_strbuckets; 1132 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *)); 1133 dt_proc_hash_create(dtp); 1134 dtp->dt_vmax = DT_VERS_LATEST; 1135 dtp->dt_cpp_path = strdup(_dtrace_defcpp); 1136 dtp->dt_cpp_argv = malloc(sizeof (char *)); 1137 dtp->dt_cpp_argc = 1; 1138 dtp->dt_cpp_args = 1; 1139 dtp->dt_ld_path = strdup(_dtrace_defld); 1140 dtp->dt_provmod = provmod; 1141 dtp->dt_vector = vector; 1142 dtp->dt_varg = arg; 1143 dt_dof_init(dtp); 1144 (void) uname(&dtp->dt_uts); 1145 1146 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL || 1147 dtp->dt_procs == NULL || dtp->dt_ld_path == NULL || 1148 dtp->dt_cpp_path == NULL || dtp->dt_cpp_argv == NULL) 1149 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1150 1151 for (i = 0; i < DTRACEOPT_MAX; i++) 1152 dtp->dt_options[i] = DTRACEOPT_UNSET; 1153 1154 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path); 1155 1156 #if defined(sun) 1157 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u", 1158 (uint_t)(sizeof (void *) * NBBY)); 1159 1160 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s", 1161 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)), 1162 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2))); 1163 1164 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL || 1165 dt_cpp_add_arg(dtp, "-D__unix") == NULL || 1166 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL || 1167 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL || 1168 dt_cpp_add_arg(dtp, isadef) == NULL || 1169 dt_cpp_add_arg(dtp, utsdef) == NULL) 1170 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1171 #endif 1172 1173 if (flags & DTRACE_O_NODEV) 1174 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf)); 1175 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0) 1176 return (set_open_errno(dtp, errp, errno)); 1177 1178 if (flags & DTRACE_O_LP64) 1179 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64; 1180 else if (flags & DTRACE_O_ILP32) 1181 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32; 1182 1183 #ifdef __sparc 1184 /* 1185 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h> 1186 * and __sparcv9 is defined if we are doing a 64-bit compile. 1187 */ 1188 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL) 1189 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1190 1191 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 && 1192 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL) 1193 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1194 #endif 1195 1196 #if defined(sun) 1197 #ifdef __x86 1198 /* 1199 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit 1200 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC, 1201 * they are defined exclusive of one another (see PSARC 2004/619). 1202 */ 1203 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 1204 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL) 1205 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1206 } else { 1207 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL) 1208 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1209 } 1210 #endif 1211 #else 1212 #if defined(__amd64__) || defined(__i386__) 1213 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 1214 if (dt_cpp_add_arg(dtp, "-m64") == NULL) 1215 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1216 } else { 1217 if (dt_cpp_add_arg(dtp, "-m32") == NULL) 1218 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1219 } 1220 #endif 1221 #endif 1222 1223 if (dtp->dt_conf.dtc_difversion < DIF_VERSION) 1224 return (set_open_errno(dtp, errp, EDT_DIFVERS)); 1225 1226 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) 1227 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32)); 1228 else 1229 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64)); 1230 1231 /* 1232 * On FreeBSD the kernel module name can't be hard-coded. The 1233 * 'kern.bootfile' sysctl value tells us exactly which file is being 1234 * used as the kernel. 1235 */ 1236 #if !defined(sun) 1237 { 1238 char bootfile[MAXPATHLEN]; 1239 char *p; 1240 int i; 1241 size_t len = sizeof(bootfile); 1242 1243 /* This call shouldn't fail, but use a default just in case. */ 1244 if (sysctlbyname("kern.bootfile", bootfile, &len, NULL, 0) != 0) 1245 strlcpy(bootfile, "kernel", sizeof(bootfile)); 1246 1247 if ((p = strrchr(bootfile, '/')) != NULL) 1248 p++; 1249 else 1250 p = bootfile; 1251 1252 /* 1253 * Format the global variables based on the kernel module name. 1254 */ 1255 snprintf(curthread_str, sizeof(curthread_str), "%s`struct thread *",p); 1256 snprintf(intmtx_str, sizeof(intmtx_str), "int(%s`struct mtx *)",p); 1257 snprintf(threadmtx_str, sizeof(threadmtx_str), "struct thread *(%s`struct mtx *)",p); 1258 snprintf(rwlock_str, sizeof(rwlock_str), "int(%s`struct rwlock *)",p); 1259 snprintf(sxlock_str, sizeof(sxlock_str), "int(%s`struct sxlock *)",p); 1260 } 1261 #endif 1262 1263 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX); 1264 dtp->dt_aggs = dt_idhash_create("aggregation", NULL, 1265 DTRACE_AGGVARIDNONE + 1, UINT_MAX); 1266 1267 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals, 1268 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1269 1270 dtp->dt_tls = dt_idhash_create("thread local", NULL, 1271 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1272 1273 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL || 1274 dtp->dt_globals == NULL || dtp->dt_tls == NULL) 1275 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1276 1277 /* 1278 * Populate the dt_macros identifier hash table by hand: we can't use 1279 * the dt_idhash_populate() mechanism because we're not yet compiling 1280 * and dtrace_update() needs to immediately reference these idents. 1281 */ 1282 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) { 1283 if (dt_idhash_insert(dtp->dt_macros, idp->di_name, 1284 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr, 1285 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw, 1286 idp->di_iarg, 0) == NULL) 1287 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1288 } 1289 1290 /* 1291 * Update the module list using /system/object and load the values for 1292 * the macro variable definitions according to the current process. 1293 */ 1294 dtrace_update(dtp); 1295 1296 /* 1297 * Select the intrinsics and typedefs we want based on the data model. 1298 * The intrinsics are under "C". The typedefs are added under "D". 1299 */ 1300 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) { 1301 dinp = _dtrace_intrinsics_32; 1302 dtyp = _dtrace_typedefs_32; 1303 } else { 1304 dinp = _dtrace_intrinsics_64; 1305 dtyp = _dtrace_typedefs_64; 1306 } 1307 1308 /* 1309 * Create a dynamic CTF container under the "C" scope for intrinsic 1310 * types and types defined in ANSI-C header files that are included. 1311 */ 1312 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL) 1313 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1314 1315 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1316 return (set_open_errno(dtp, errp, EDT_CTF)); 1317 1318 dt_dprintf("created CTF container for %s (%p)\n", 1319 dmp->dm_name, (void *)dmp->dm_ctfp); 1320 1321 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1322 ctf_setspecific(dmp->dm_ctfp, dmp); 1323 1324 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1325 dmp->dm_modid = -1; /* no module ID */ 1326 1327 /* 1328 * Fill the dynamic "C" CTF container with all of the intrinsic 1329 * integer and floating-point types appropriate for this data model. 1330 */ 1331 for (; dinp->din_name != NULL; dinp++) { 1332 if (dinp->din_kind == CTF_K_INTEGER) { 1333 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT, 1334 dinp->din_name, &dinp->din_data); 1335 } else { 1336 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT, 1337 dinp->din_name, &dinp->din_data); 1338 } 1339 1340 if (err == CTF_ERR) { 1341 dt_dprintf("failed to add %s to C container: %s\n", 1342 dinp->din_name, ctf_errmsg( 1343 ctf_errno(dmp->dm_ctfp))); 1344 return (set_open_errno(dtp, errp, EDT_CTF)); 1345 } 1346 } 1347 1348 if (ctf_update(dmp->dm_ctfp) != 0) { 1349 dt_dprintf("failed to update C container: %s\n", 1350 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1351 return (set_open_errno(dtp, errp, EDT_CTF)); 1352 } 1353 1354 /* 1355 * Add intrinsic pointer types that are needed to initialize printf 1356 * format dictionary types (see table in dt_printf.c). 1357 */ 1358 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1359 ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1360 1361 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1362 ctf_lookup_by_name(dmp->dm_ctfp, "char")); 1363 1364 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1365 ctf_lookup_by_name(dmp->dm_ctfp, "int")); 1366 1367 if (ctf_update(dmp->dm_ctfp) != 0) { 1368 dt_dprintf("failed to update C container: %s\n", 1369 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1370 return (set_open_errno(dtp, errp, EDT_CTF)); 1371 } 1372 1373 /* 1374 * Create a dynamic CTF container under the "D" scope for types that 1375 * are defined by the D program itself or on-the-fly by the D compiler. 1376 * The "D" CTF container is a child of the "C" CTF container. 1377 */ 1378 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL) 1379 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1380 1381 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1382 return (set_open_errno(dtp, errp, EDT_CTF)); 1383 1384 dt_dprintf("created CTF container for %s (%p)\n", 1385 dmp->dm_name, (void *)dmp->dm_ctfp); 1386 1387 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1388 ctf_setspecific(dmp->dm_ctfp, dmp); 1389 1390 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1391 dmp->dm_modid = -1; /* no module ID */ 1392 1393 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) { 1394 dt_dprintf("failed to import D parent container: %s\n", 1395 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1396 return (set_open_errno(dtp, errp, EDT_CTF)); 1397 } 1398 1399 /* 1400 * Fill the dynamic "D" CTF container with all of the built-in typedefs 1401 * that we need to use for our D variable and function definitions. 1402 * This ensures that basic inttypes.h names are always available to us. 1403 */ 1404 for (; dtyp->dty_src != NULL; dtyp++) { 1405 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1406 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp, 1407 dtyp->dty_src)) == CTF_ERR) { 1408 dt_dprintf("failed to add typedef %s %s to D " 1409 "container: %s", dtyp->dty_src, dtyp->dty_dst, 1410 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1411 return (set_open_errno(dtp, errp, EDT_CTF)); 1412 } 1413 } 1414 1415 /* 1416 * Insert a CTF ID corresponding to a pointer to a type of kind 1417 * CTF_K_FUNCTION we can use in the compiler for function pointers. 1418 * CTF treats all function pointers as "int (*)()" so we only need one. 1419 */ 1420 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int"); 1421 ctc.ctc_argc = 0; 1422 ctc.ctc_flags = 0; 1423 1424 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp, 1425 CTF_ADD_ROOT, &ctc, NULL); 1426 1427 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp, 1428 CTF_ADD_ROOT, dtp->dt_type_func); 1429 1430 /* 1431 * We also insert CTF definitions for the special D intrinsic types 1432 * string and <DYN> into the D container. The string type is added 1433 * as a typedef of char[n]. The <DYN> type is an alias for void. 1434 * We compare types to these special CTF ids throughout the compiler. 1435 */ 1436 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char"); 1437 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long"); 1438 ctr.ctr_nelems = _dtrace_strsize; 1439 1440 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1441 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr)); 1442 1443 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1444 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1445 1446 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1447 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1448 1449 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1450 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1451 1452 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1453 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1454 1455 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR || 1456 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR || 1457 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR || 1458 dtp->dt_type_usymaddr == CTF_ERR) { 1459 dt_dprintf("failed to add intrinsic to D container: %s\n", 1460 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1461 return (set_open_errno(dtp, errp, EDT_CTF)); 1462 } 1463 1464 if (ctf_update(dmp->dm_ctfp) != 0) { 1465 dt_dprintf("failed update D container: %s\n", 1466 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1467 return (set_open_errno(dtp, errp, EDT_CTF)); 1468 } 1469 1470 /* 1471 * Initialize the integer description table used to convert integer 1472 * constants to the appropriate types. Refer to the comments above 1473 * dt_node_int() for a complete description of how this table is used. 1474 */ 1475 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) { 1476 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY, 1477 dtp->dt_ints[i].did_name, &dtt) != 0) { 1478 dt_dprintf("failed to lookup integer type %s: %s\n", 1479 dtp->dt_ints[i].did_name, 1480 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1481 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1482 } 1483 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp; 1484 dtp->dt_ints[i].did_type = dtt.dtt_type; 1485 } 1486 1487 /* 1488 * Now that we've created the "C" and "D" containers, move them to the 1489 * start of the module list so that these types and symbols are found 1490 * first (for stability) when iterating through the module list. 1491 */ 1492 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs); 1493 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs); 1494 1495 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs); 1496 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs); 1497 1498 if (dt_pfdict_create(dtp) == -1) 1499 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1500 1501 /* 1502 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default 1503 * because without /dev/dtrace open, we will not be able to load the 1504 * names and attributes of any providers or probes from the kernel. 1505 */ 1506 if (flags & DTRACE_O_NODEV) 1507 dtp->dt_cflags |= DTRACE_C_ZDEFS; 1508 1509 /* 1510 * Load hard-wired inlines into the definition cache by calling the 1511 * compiler on the raw definition string defined above. 1512 */ 1513 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire, 1514 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) { 1515 dt_dprintf("failed to load hard-wired definitions: %s\n", 1516 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1517 return (set_open_errno(dtp, errp, EDT_HARDWIRE)); 1518 } 1519 1520 dt_program_destroy(dtp, pgp); 1521 1522 /* 1523 * Set up the default DTrace library path. Once set, the next call to 1524 * dt_compile() will compile all the libraries. We intentionally defer 1525 * library processing to improve overhead for clients that don't ever 1526 * compile, and to provide better error reporting (because the full 1527 * reporting of compiler errors requires dtrace_open() to succeed). 1528 */ 1529 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0) 1530 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1531 1532 return (dtp); 1533 } 1534 1535 dtrace_hdl_t * 1536 dtrace_open(int version, int flags, int *errp) 1537 { 1538 return (dt_vopen(version, flags, errp, NULL, NULL)); 1539 } 1540 1541 dtrace_hdl_t * 1542 dtrace_vopen(int version, int flags, int *errp, 1543 const dtrace_vector_t *vector, void *arg) 1544 { 1545 return (dt_vopen(version, flags, errp, vector, arg)); 1546 } 1547 1548 void 1549 dtrace_close(dtrace_hdl_t *dtp) 1550 { 1551 dt_ident_t *idp, *ndp; 1552 dt_module_t *dmp; 1553 dt_provider_t *pvp; 1554 dtrace_prog_t *pgp; 1555 dt_xlator_t *dxp; 1556 dt_dirpath_t *dirp; 1557 int i; 1558 1559 if (dtp->dt_procs != NULL) 1560 dt_proc_hash_destroy(dtp); 1561 1562 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL) 1563 dt_program_destroy(dtp, pgp); 1564 1565 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL) 1566 dt_xlator_destroy(dtp, dxp); 1567 1568 dt_free(dtp, dtp->dt_xlatormap); 1569 1570 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) { 1571 ndp = idp->di_next; 1572 dt_ident_destroy(idp); 1573 } 1574 1575 if (dtp->dt_macros != NULL) 1576 dt_idhash_destroy(dtp->dt_macros); 1577 if (dtp->dt_aggs != NULL) 1578 dt_idhash_destroy(dtp->dt_aggs); 1579 if (dtp->dt_globals != NULL) 1580 dt_idhash_destroy(dtp->dt_globals); 1581 if (dtp->dt_tls != NULL) 1582 dt_idhash_destroy(dtp->dt_tls); 1583 1584 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL) 1585 dt_module_destroy(dtp, dmp); 1586 1587 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL) 1588 dt_provider_destroy(dtp, pvp); 1589 1590 if (dtp->dt_fd != -1) 1591 (void) close(dtp->dt_fd); 1592 if (dtp->dt_ftfd != -1) 1593 (void) close(dtp->dt_ftfd); 1594 if (dtp->dt_cdefs_fd != -1) 1595 (void) close(dtp->dt_cdefs_fd); 1596 if (dtp->dt_ddefs_fd != -1) 1597 (void) close(dtp->dt_ddefs_fd); 1598 #if defined(sun) 1599 if (dtp->dt_stdout_fd != -1) 1600 (void) close(dtp->dt_stdout_fd); 1601 #else 1602 if (dtp->dt_freopen_fp != NULL) 1603 (void) fclose(dtp->dt_freopen_fp); 1604 #endif 1605 1606 dt_epid_destroy(dtp); 1607 dt_aggid_destroy(dtp); 1608 dt_format_destroy(dtp); 1609 dt_buffered_destroy(dtp); 1610 dt_aggregate_destroy(dtp); 1611 free(dtp->dt_buf.dtbd_data); 1612 dt_pfdict_destroy(dtp); 1613 dt_provmod_destroy(&dtp->dt_provmod); 1614 dt_dof_fini(dtp); 1615 1616 for (i = 1; i < dtp->dt_cpp_argc; i++) 1617 free(dtp->dt_cpp_argv[i]); 1618 1619 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) { 1620 dt_list_delete(&dtp->dt_lib_path, dirp); 1621 free(dirp->dir_path); 1622 free(dirp); 1623 } 1624 1625 free(dtp->dt_cpp_argv); 1626 free(dtp->dt_cpp_path); 1627 free(dtp->dt_ld_path); 1628 1629 free(dtp->dt_mods); 1630 free(dtp->dt_provs); 1631 free(dtp); 1632 } 1633 1634 int 1635 dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods) 1636 { 1637 dt_provmod_t *prov; 1638 int i = 0; 1639 1640 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) { 1641 if (i < nmods) 1642 mods[i] = prov->dp_name; 1643 } 1644 1645 return (i); 1646 } 1647 1648 int 1649 dtrace_ctlfd(dtrace_hdl_t *dtp) 1650 { 1651 return (dtp->dt_fd); 1652 } 1653