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 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <sys/types.h> 30 #if defined(sun) 31 #include <sys/modctl.h> 32 #include <sys/systeminfo.h> 33 #endif 34 #include <sys/resource.h> 35 36 #include <libelf.h> 37 #include <strings.h> 38 #if defined(sun) 39 #include <alloca.h> 40 #endif 41 #include <limits.h> 42 #include <unistd.h> 43 #include <stdlib.h> 44 #include <stdio.h> 45 #include <fcntl.h> 46 #include <errno.h> 47 #include <assert.h> 48 49 #define _POSIX_PTHREAD_SEMANTICS 50 #include <dirent.h> 51 #undef _POSIX_PTHREAD_SEMANTICS 52 53 #include <dt_impl.h> 54 #include <dt_program.h> 55 #include <dt_module.h> 56 #include <dt_printf.h> 57 #include <dt_string.h> 58 #include <dt_provider.h> 59 #if !defined(sun) 60 #include <sys/sysctl.h> 61 #include <string.h> 62 #endif 63 #if defined(__i386__) 64 #include <ieeefp.h> 65 #endif 66 67 /* 68 * Stability and versioning definitions. These #defines are used in the tables 69 * of identifiers below to fill in the attribute and version fields associated 70 * with each identifier. The DT_ATTR_* macros are a convenience to permit more 71 * concise declarations of common attributes such as Stable/Stable/Common. The 72 * DT_VERS_* macros declare the encoded integer values of all versions used so 73 * far. DT_VERS_LATEST must correspond to the latest version value among all 74 * versions exported by the D compiler. DT_VERS_STRING must be an ASCII string 75 * that contains DT_VERS_LATEST within it along with any suffixes (e.g. Beta). 76 * You must update DT_VERS_LATEST and DT_VERS_STRING when adding a new version, 77 * and then add the new version to the _dtrace_versions[] array declared below. 78 * Refer to the Solaris Dynamic Tracing Guide Stability and Versioning chapters 79 * respectively for an explanation of these DTrace features and their values. 80 * 81 * NOTE: Although the DTrace versioning scheme supports the labeling and 82 * introduction of incompatible changes (e.g. dropping an interface in a 83 * major release), the libdtrace code does not currently support this. 84 * All versions are assumed to strictly inherit from one another. If 85 * we ever need to provide divergent interfaces, this will need work. 86 */ 87 #define DT_ATTR_STABCMN { DTRACE_STABILITY_STABLE, \ 88 DTRACE_STABILITY_STABLE, DTRACE_CLASS_COMMON } 89 90 #define DT_ATTR_EVOLCMN { DTRACE_STABILITY_EVOLVING, \ 91 DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_COMMON \ 92 } 93 94 /* 95 * The version number should be increased for every customer visible release 96 * of Solaris. The major number should be incremented when a fundamental 97 * change has been made that would affect all consumers, and would reflect 98 * sweeping changes to DTrace or the D language. The minor number should be 99 * incremented when a change is introduced that could break scripts that had 100 * previously worked; for example, adding a new built-in variable could break 101 * a script which was already using that identifier. The micro number should 102 * be changed when introducing functionality changes or major bug fixes that 103 * do not affect backward compatibility -- this is merely to make capabilities 104 * easily determined from the version number. Minor bugs do not require any 105 * modification to the version number. 106 */ 107 #define DT_VERS_1_0 DT_VERSION_NUMBER(1, 0, 0) 108 #define DT_VERS_1_1 DT_VERSION_NUMBER(1, 1, 0) 109 #define DT_VERS_1_2 DT_VERSION_NUMBER(1, 2, 0) 110 #define DT_VERS_1_2_1 DT_VERSION_NUMBER(1, 2, 1) 111 #define DT_VERS_1_2_2 DT_VERSION_NUMBER(1, 2, 2) 112 #define DT_VERS_1_3 DT_VERSION_NUMBER(1, 3, 0) 113 #define DT_VERS_1_4 DT_VERSION_NUMBER(1, 4, 0) 114 #define DT_VERS_1_4_1 DT_VERSION_NUMBER(1, 4, 1) 115 #define DT_VERS_1_5 DT_VERSION_NUMBER(1, 5, 0) 116 #define DT_VERS_1_6 DT_VERSION_NUMBER(1, 6, 0) 117 #define DT_VERS_1_6_1 DT_VERSION_NUMBER(1, 6, 1) 118 #define DT_VERS_LATEST DT_VERS_1_6_1 119 #define DT_VERS_STRING "Sun D 1.6.1" 120 121 const dt_version_t _dtrace_versions[] = { 122 DT_VERS_1_0, /* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */ 123 DT_VERS_1_1, /* D API 1.1.0 Solaris Express 6/05 */ 124 DT_VERS_1_2, /* D API 1.2.0 Solaris 10 Update 1 */ 125 DT_VERS_1_2_1, /* D API 1.2.1 Solaris Express 4/06 */ 126 DT_VERS_1_2_2, /* D API 1.2.2 Solaris Express 6/06 */ 127 DT_VERS_1_3, /* D API 1.3 Solaris Express 10/06 */ 128 DT_VERS_1_4, /* D API 1.4 Solaris Express 2/07 */ 129 DT_VERS_1_4_1, /* D API 1.4.1 Solaris Express 4/07 */ 130 DT_VERS_1_5, /* D API 1.5 Solaris Express 7/07 */ 131 DT_VERS_1_6, /* D API 1.6 */ 132 DT_VERS_1_6_1, /* D API 1.6.1 */ 133 0 134 }; 135 136 /* 137 * Global variables that are formatted on FreeBSD based on the kernel file name. 138 */ 139 #if !defined(sun) 140 static char curthread_str[MAXPATHLEN]; 141 static char intmtx_str[MAXPATHLEN]; 142 static char threadmtx_str[MAXPATHLEN]; 143 static char rwlock_str[MAXPATHLEN]; 144 static char sxlock_str[MAXPATHLEN]; 145 #endif 146 147 /* 148 * Table of global identifiers. This is used to populate the global identifier 149 * hash when a new dtrace client open occurs. For more info see dt_ident.h. 150 * The global identifiers that represent functions use the dt_idops_func ops 151 * and specify the private data pointer as a prototype string which is parsed 152 * when the identifier is first encountered. These prototypes look like ANSI 153 * C function prototypes except that the special symbol "@" can be used as a 154 * wildcard to represent a single parameter of any type (i.e. any dt_node_t). 155 * The standard "..." notation can also be used to represent varargs. An empty 156 * parameter list is taken to mean void (that is, no arguments are permitted). 157 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional 158 * argument. 159 */ 160 static const dt_ident_t _dtrace_globals[] = { 161 { "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0, 162 &dt_idops_func, "void *(size_t)" }, 163 { "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0, 164 &dt_idops_type, "int64_t" }, 165 { "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0, 166 &dt_idops_type, "int64_t" }, 167 { "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0, 168 &dt_idops_type, "int64_t" }, 169 { "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0, 170 &dt_idops_type, "int64_t" }, 171 { "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0, 172 &dt_idops_type, "int64_t" }, 173 { "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0, 174 &dt_idops_type, "int64_t" }, 175 { "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0, 176 &dt_idops_type, "int64_t" }, 177 { "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0, 178 &dt_idops_type, "int64_t" }, 179 { "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0, 180 &dt_idops_type, "int64_t" }, 181 { "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0, 182 &dt_idops_type, "int64_t" }, 183 { "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0, 184 &dt_idops_args, NULL }, 185 { "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0, 186 &dt_idops_func, "void(@)" }, 187 { "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0, 188 &dt_idops_func, "string(const char *)" }, 189 { "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0, 190 &dt_idops_func, "void(void *, void *, size_t)" }, 191 { "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT, 192 DT_ATTR_STABCMN, DT_VERS_1_0, 193 &dt_idops_func, "void()" }, 194 { "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0, 195 &dt_idops_type, "uintptr_t" }, 196 { "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0, 197 &dt_idops_func, "void(int)" }, 198 { "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN, 199 DT_VERS_1_0, &dt_idops_func, "string(const char *)" }, 200 { "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0, 201 &dt_idops_func, "void(...)" }, 202 { "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0, 203 &dt_idops_func, "void(int)" }, 204 { "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0, 205 &dt_idops_func, "void *(uintptr_t, size_t)" }, 206 { "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR, 207 DT_ATTR_STABCMN, DT_VERS_1_0, 208 &dt_idops_func, "string(uintptr_t, [size_t])" }, 209 { "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN, 210 DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" }, 211 { "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0, 212 &dt_idops_func, "void(void *, uintptr_t, size_t)" }, 213 { "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR, 214 DT_ATTR_STABCMN, DT_VERS_1_0, 215 &dt_idops_func, "void(char *, uintptr_t, size_t)" }, 216 { "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0, 217 &dt_idops_func, "void()" }, 218 { "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD, 219 { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE, 220 DTRACE_CLASS_COMMON }, DT_VERS_1_0, 221 #if defined(sun) 222 &dt_idops_type, "genunix`kthread_t *" }, 223 #else 224 &dt_idops_type, curthread_str }, 225 #endif 226 { "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME, 227 DT_ATTR_EVOLCMN, DT_VERS_1_0, 228 &dt_idops_func, "string(void *, int64_t)" }, 229 { "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN, 230 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 231 { "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0, 232 &dt_idops_func, "string(const char *)" }, 233 { "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0, 234 &dt_idops_func, "void(int)" }, 235 { "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0, 236 &dt_idops_type, "uint_t" }, 237 { "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0, 238 &dt_idops_type, "int" }, 239 { "execargs", DT_IDENT_SCALAR, 0, DIF_VAR_EXECARGS, 240 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 241 { "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME, 242 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 243 { "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0, 244 &dt_idops_func, "void(int)" }, 245 { "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN, 246 DT_VERS_1_1, &dt_idops_func, "void(@, ...)" }, 247 { "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN, 248 DT_VERS_1_0, &dt_idops_func, "void()" }, 249 { "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 250 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 251 { "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR, 252 DT_ATTR_EVOLCMN, DT_VERS_1_0, 253 &dt_idops_func, "genunix`major_t(genunix`dev_t)" }, 254 { "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR, 255 DT_ATTR_EVOLCMN, DT_VERS_1_0, 256 &dt_idops_func, "genunix`minor_t(genunix`dev_t)" }, 257 { "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 258 &dt_idops_func, "uint32_t(uint32_t)" }, 259 { "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 260 &dt_idops_func, "uint64_t(uint64_t)" }, 261 { "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 262 &dt_idops_func, "uint16_t(uint16_t)" }, 263 { "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0, 264 &dt_idops_type, "gid_t" }, 265 { "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0, 266 &dt_idops_type, "uint_t" }, 267 { "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 268 &dt_idops_func, "int(const char *, const char *, [int])" }, 269 { "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN, 270 #if defined(sun) 271 DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" }, 272 #else 273 DT_VERS_1_5, &dt_idops_func, "string(in_addr_t *)" }, 274 #endif 275 { "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN, 276 #if defined(sun) 277 DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" }, 278 #else 279 DT_VERS_1_5, &dt_idops_func, "string(struct in6_addr *)" }, 280 #endif 281 { "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN, 282 DT_VERS_1_5, &dt_idops_func, "string(int, void *)" }, 283 { "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0, 284 &dt_idops_type, "uint_t" }, 285 #if defined(sun) 286 { "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 287 &dt_idops_func, "stack(...)" }, 288 #endif 289 { "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0, 290 &dt_idops_func, "string(int64_t)" }, 291 { "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE, 292 DT_ATTR_STABCMN, DT_VERS_1_0, 293 &dt_idops_func, "void(@, int32_t, int32_t, ...)" }, 294 { "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0, 295 &dt_idops_func, "void(@)" }, 296 { "memref", DT_IDENT_FUNC, 0, DIF_SUBR_MEMREF, DT_ATTR_STABCMN, DT_VERS_1_1, 297 &dt_idops_func, "uintptr_t *(void *, size_t)" }, 298 { "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0, 299 &dt_idops_func, "void(@)" }, 300 { "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN, 301 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 302 { "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE, 303 DT_ATTR_STABCMN, DT_VERS_1_0, 304 &dt_idops_func, "size_t(mblk_t *)" }, 305 { "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE, 306 DT_ATTR_STABCMN, DT_VERS_1_0, 307 &dt_idops_func, "size_t(mblk_t *)" }, 308 #if defined(sun) 309 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 310 DT_ATTR_EVOLCMN, DT_VERS_1_0, 311 &dt_idops_func, "int(genunix`kmutex_t *)" }, 312 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 313 DT_ATTR_EVOLCMN, DT_VERS_1_0, 314 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" }, 315 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 316 DT_ATTR_EVOLCMN, DT_VERS_1_0, 317 &dt_idops_func, "int(genunix`kmutex_t *)" }, 318 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 319 DT_ATTR_EVOLCMN, DT_VERS_1_0, 320 &dt_idops_func, "int(genunix`kmutex_t *)" }, 321 #else 322 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 323 DT_ATTR_EVOLCMN, DT_VERS_1_0, 324 &dt_idops_func, intmtx_str }, 325 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 326 DT_ATTR_EVOLCMN, DT_VERS_1_0, 327 &dt_idops_func, threadmtx_str }, 328 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 329 DT_ATTR_EVOLCMN, DT_VERS_1_0, 330 &dt_idops_func, intmtx_str }, 331 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 332 DT_ATTR_EVOLCMN, DT_VERS_1_0, 333 &dt_idops_func, intmtx_str }, 334 #endif 335 { "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 336 &dt_idops_func, "uint32_t(uint32_t)" }, 337 { "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 338 &dt_idops_func, "uint64_t(uint64_t)" }, 339 { "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 340 &dt_idops_func, "uint16_t(uint16_t)" }, 341 { "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN, 342 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 343 { "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0, 344 &dt_idops_func, "void()" }, 345 { "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0, 346 &dt_idops_type, "pid_t" }, 347 { "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0, 348 &dt_idops_type, "pid_t" }, 349 { "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0, 350 &dt_idops_func, "void(@, ...)" }, 351 { "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0, 352 &dt_idops_func, "void(@, ...)" }, 353 { "printm", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTM, DT_ATTR_STABCMN, DT_VERS_1_0, 354 &dt_idops_func, "void(size_t, uintptr_t *)" }, 355 { "printt", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTT, DT_ATTR_STABCMN, DT_VERS_1_0, 356 &dt_idops_func, "void(size_t, uintptr_t *)" }, 357 { "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC, 358 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 359 { "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD, 360 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 361 { "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME, 362 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 363 { "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV, 364 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 365 { "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF, 366 DT_ATTR_STABCMN, DT_VERS_1_0, 367 &dt_idops_func, "int(pid_t)" }, 368 { "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE, 369 DT_ATTR_STABCMN, DT_VERS_1_0, 370 &dt_idops_func, "void(@, ...)" }, 371 { "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0, 372 &dt_idops_func, "void(int)" }, 373 { "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0, 374 &dt_idops_func, "int()" }, 375 { "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 376 &dt_idops_func, "int(const char *, const char *, [int])" }, 377 #if defined(sun) 378 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 379 DT_ATTR_EVOLCMN, DT_VERS_1_0, 380 &dt_idops_func, "int(genunix`krwlock_t *)" }, 381 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 382 DT_ATTR_EVOLCMN, DT_VERS_1_0, 383 &dt_idops_func, "int(genunix`krwlock_t *)" }, 384 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 385 DT_ATTR_EVOLCMN, DT_VERS_1_0, 386 &dt_idops_func, "int(genunix`krwlock_t *)" }, 387 #else 388 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 389 DT_ATTR_EVOLCMN, DT_VERS_1_0, 390 &dt_idops_func, rwlock_str }, 391 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 392 DT_ATTR_EVOLCMN, DT_VERS_1_0, 393 &dt_idops_func, rwlock_str }, 394 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 395 DT_ATTR_EVOLCMN, DT_VERS_1_0, 396 &dt_idops_func, rwlock_str }, 397 #endif 398 { "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 399 &dt_idops_type, "void" }, 400 { "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN, 401 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" }, 402 { "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE, 403 DT_ATTR_STABCMN, DT_VERS_1_0, 404 &dt_idops_func, "void(int)" }, 405 { "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION, 406 DT_ATTR_STABCMN, DT_VERS_1_0, 407 &dt_idops_func, "int()" }, 408 { "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0, 409 &dt_idops_func, "stack(...)" }, 410 { "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH, 411 DT_ATTR_STABCMN, DT_VERS_1_0, 412 &dt_idops_type, "uint32_t" }, 413 { "stddev", DT_IDENT_AGGFUNC, 0, DTRACEAGG_STDDEV, DT_ATTR_STABCMN, 414 DT_VERS_1_6, &dt_idops_func, "void(@)" }, 415 { "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0, 416 &dt_idops_func, "void()" }, 417 { "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 418 &dt_idops_func, "string(const char *, char)" }, 419 { "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0, 420 &dt_idops_func, "size_t(const char *)" }, 421 { "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0, 422 &dt_idops_func, "string(const char *, const char *)" }, 423 { "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 424 &dt_idops_func, "string(const char *, char)" }, 425 { "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 426 &dt_idops_func, "string(const char *, const char *)" }, 427 { "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1, 428 &dt_idops_func, "string(const char *, const char *)" }, 429 { "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 430 &dt_idops_func, "string(const char *, int, [int])" }, 431 { "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0, 432 &dt_idops_func, "void(@)" }, 433 #if !defined(sun) 434 { "sx_isexclusive", DT_IDENT_FUNC, 0, DIF_SUBR_SX_ISEXCLUSIVE, 435 DT_ATTR_EVOLCMN, DT_VERS_1_0, 436 &dt_idops_func, sxlock_str }, 437 { "sx_shared_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_SHARED_HELD, 438 DT_ATTR_EVOLCMN, DT_VERS_1_0, 439 &dt_idops_func, sxlock_str }, 440 { "sx_exclusive_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_EXCLUSIVE_HELD, 441 DT_ATTR_EVOLCMN, DT_VERS_1_0, 442 &dt_idops_func, sxlock_str }, 443 #endif 444 { "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 445 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 446 { "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0, 447 &dt_idops_func, "void(@, ...)" }, 448 { "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 449 &dt_idops_type, "void" }, 450 { "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0, 451 &dt_idops_type, "id_t" }, 452 { "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP, 453 DT_ATTR_STABCMN, DT_VERS_1_0, 454 &dt_idops_type, "uint64_t" }, 455 { "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0, 456 &dt_idops_func, "void(@)" }, 457 { "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM, 458 DT_ATTR_STABCMN, DT_VERS_1_0, 459 &dt_idops_func, "void(@, size_t)" }, 460 { "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN, 461 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 462 { "typeref", DT_IDENT_FUNC, 0, DIF_SUBR_TYPEREF, DT_ATTR_STABCMN, DT_VERS_1_1, 463 &dt_idops_func, "uintptr_t *(void *, size_t, string, size_t)" }, 464 #if defined(sun) 465 { "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN, 466 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 467 { "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN, 468 DT_VERS_1_2, &dt_idops_type, "uint64_t" }, 469 { "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 470 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 471 #endif 472 { "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0, 473 &dt_idops_type, "uid_t" }, 474 #if defined(sun) 475 { "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN, 476 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 477 { "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0, 478 &dt_idops_regs, NULL }, 479 { "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 480 &dt_idops_func, "stack(...)" }, 481 { "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH, 482 DT_ATTR_STABCMN, DT_VERS_1_2, 483 &dt_idops_type, "uint32_t" }, 484 { "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 485 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 486 #endif 487 { "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP, 488 DT_ATTR_STABCMN, DT_VERS_1_0, 489 &dt_idops_type, "uint64_t" }, 490 { "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP, 491 DT_ATTR_STABCMN, DT_VERS_1_0, 492 &dt_idops_type, "int64_t" }, 493 #if defined(sun) 494 { "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME, 495 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 496 #endif 497 { NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL } 498 }; 499 500 /* 501 * Tables of ILP32 intrinsic integer and floating-point type templates to use 502 * to populate the dynamic "C" CTF type container. 503 */ 504 static const dt_intrinsic_t _dtrace_intrinsics_32[] = { 505 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 506 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 507 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 508 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 509 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 510 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 511 { "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 512 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 513 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 514 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 515 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 516 { "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 517 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 518 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 519 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 520 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 521 { "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER }, 522 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 523 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 524 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 525 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 526 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 527 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 528 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 529 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 530 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 531 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 532 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 533 { NULL, { 0, 0, 0 }, 0 } 534 }; 535 536 /* 537 * Tables of LP64 intrinsic integer and floating-point type templates to use 538 * to populate the dynamic "C" CTF type container. 539 */ 540 static const dt_intrinsic_t _dtrace_intrinsics_64[] = { 541 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 542 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 543 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 544 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 545 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 546 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 547 { "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 548 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 549 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 550 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 551 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 552 { "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 553 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 554 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 555 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 556 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 557 { "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER }, 558 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 559 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 560 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 561 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 562 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 563 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 564 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 565 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 566 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 567 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 568 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 569 { NULL, { 0, 0, 0 }, 0 } 570 }; 571 572 /* 573 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container. 574 * These aliases ensure that D definitions can use typical <sys/types.h> names. 575 */ 576 static const dt_typedef_t _dtrace_typedefs_32[] = { 577 { "char", "int8_t" }, 578 { "short", "int16_t" }, 579 { "int", "int32_t" }, 580 { "long long", "int64_t" }, 581 { "int", "intptr_t" }, 582 { "int", "ssize_t" }, 583 { "unsigned char", "uint8_t" }, 584 { "unsigned short", "uint16_t" }, 585 { "unsigned", "uint32_t" }, 586 { "unsigned long long", "uint64_t" }, 587 { "unsigned char", "uchar_t" }, 588 { "unsigned short", "ushort_t" }, 589 { "unsigned", "uint_t" }, 590 { "unsigned long", "ulong_t" }, 591 { "unsigned long long", "u_longlong_t" }, 592 { "int", "ptrdiff_t" }, 593 { "unsigned", "uintptr_t" }, 594 { "unsigned", "size_t" }, 595 { "long", "id_t" }, 596 { "long", "pid_t" }, 597 { NULL, NULL } 598 }; 599 600 /* 601 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container. 602 * These aliases ensure that D definitions can use typical <sys/types.h> names. 603 */ 604 static const dt_typedef_t _dtrace_typedefs_64[] = { 605 { "char", "int8_t" }, 606 { "short", "int16_t" }, 607 { "int", "int32_t" }, 608 { "long", "int64_t" }, 609 { "long", "intptr_t" }, 610 { "long", "ssize_t" }, 611 { "unsigned char", "uint8_t" }, 612 { "unsigned short", "uint16_t" }, 613 { "unsigned", "uint32_t" }, 614 { "unsigned long", "uint64_t" }, 615 { "unsigned char", "uchar_t" }, 616 { "unsigned short", "ushort_t" }, 617 { "unsigned", "uint_t" }, 618 { "unsigned long", "ulong_t" }, 619 { "unsigned long long", "u_longlong_t" }, 620 { "long", "ptrdiff_t" }, 621 { "unsigned long", "uintptr_t" }, 622 { "unsigned long", "size_t" }, 623 { "int", "id_t" }, 624 { "int", "pid_t" }, 625 { NULL, NULL } 626 }; 627 628 /* 629 * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[] 630 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 631 */ 632 static const dt_intdesc_t _dtrace_ints_32[] = { 633 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 634 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 635 { "long", NULL, CTF_ERR, 0x7fffffffULL }, 636 { "unsigned long", NULL, CTF_ERR, 0xffffffffULL }, 637 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 638 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 639 }; 640 641 /* 642 * Tables of LP64 integer type templates used to populate the dtp->dt_ints[] 643 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 644 */ 645 static const dt_intdesc_t _dtrace_ints_64[] = { 646 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 647 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 648 { "long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 649 { "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL }, 650 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 651 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 652 }; 653 654 /* 655 * Table of macro variable templates used to populate the macro identifier hash 656 * when a new dtrace client open occurs. Values are set by dtrace_update(). 657 */ 658 static const dt_ident_t _dtrace_macros[] = { 659 { "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 660 { "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 661 { "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 662 { "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 663 { "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 664 { "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 665 { "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 666 { "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 667 { "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 668 { "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 669 { "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 670 { NULL, 0, 0, 0, { 0, 0, 0 }, 0 } 671 }; 672 673 /* 674 * Hard-wired definition string to be compiled and cached every time a new 675 * DTrace library handle is initialized. This string should only be used to 676 * contain definitions that should be present regardless of DTRACE_O_NOLIBS. 677 */ 678 static const char _dtrace_hardwire[] = "\ 679 inline long NULL = 0; \n\ 680 #pragma D binding \"1.0\" NULL\n\ 681 "; 682 683 /* 684 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV. 685 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel. 686 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are 687 * relying on the fact that when running dtrace(1M), isaexec will invoke the 688 * binary with the same bitness as the kernel, which is what we want by default 689 * when generating our DIF. The user can override the choice using oflags. 690 */ 691 static const dtrace_conf_t _dtrace_conf = { 692 DIF_VERSION, /* dtc_difversion */ 693 DIF_DIR_NREGS, /* dtc_difintregs */ 694 DIF_DTR_NREGS, /* dtc_diftupregs */ 695 CTF_MODEL_NATIVE /* dtc_ctfmodel */ 696 }; 697 698 const dtrace_attribute_t _dtrace_maxattr = { 699 DTRACE_STABILITY_MAX, 700 DTRACE_STABILITY_MAX, 701 DTRACE_CLASS_MAX 702 }; 703 704 const dtrace_attribute_t _dtrace_defattr = { 705 DTRACE_STABILITY_STABLE, 706 DTRACE_STABILITY_STABLE, 707 DTRACE_CLASS_COMMON 708 }; 709 710 const dtrace_attribute_t _dtrace_symattr = { 711 DTRACE_STABILITY_PRIVATE, 712 DTRACE_STABILITY_PRIVATE, 713 DTRACE_CLASS_UNKNOWN 714 }; 715 716 const dtrace_attribute_t _dtrace_typattr = { 717 DTRACE_STABILITY_PRIVATE, 718 DTRACE_STABILITY_PRIVATE, 719 DTRACE_CLASS_UNKNOWN 720 }; 721 722 const dtrace_attribute_t _dtrace_prvattr = { 723 DTRACE_STABILITY_PRIVATE, 724 DTRACE_STABILITY_PRIVATE, 725 DTRACE_CLASS_UNKNOWN 726 }; 727 728 const dtrace_pattr_t _dtrace_prvdesc = { 729 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 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 }; 735 736 #if defined(sun) 737 const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */ 738 const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */ 739 #else 740 const char *_dtrace_defcpp = "cpp"; /* default cpp(1) to invoke */ 741 const char *_dtrace_defld = "ld"; /* default ld(1) to invoke */ 742 #endif 743 744 const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */ 745 #if defined(sun) 746 const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */ 747 #else 748 const char *_dtrace_provdir = "/dev/dtrace"; /* provider directory */ 749 #endif 750 751 int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */ 752 int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */ 753 uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */ 754 uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */ 755 uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */ 756 uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */ 757 size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */ 758 int _dtrace_argmax = 32; /* default maximum number of probe arguments */ 759 760 int _dtrace_debug = 0; /* debug messages enabled (off) */ 761 const char *const _dtrace_version = DT_VERS_STRING; /* API version string */ 762 #if defined(sun) 763 int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */ 764 #endif 765 766 typedef struct dt_fdlist { 767 int *df_fds; /* array of provider driver file descriptors */ 768 uint_t df_ents; /* number of valid elements in df_fds[] */ 769 uint_t df_size; /* size of df_fds[] */ 770 } dt_fdlist_t; 771 772 #if defined(sun) 773 #pragma init(_dtrace_init) 774 #else 775 void _dtrace_init(void) __attribute__ ((constructor)); 776 #endif 777 void 778 _dtrace_init(void) 779 { 780 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL; 781 782 #if defined(sun) 783 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) { 784 if (rd_init(_dtrace_rdvers) == RD_OK) 785 break; 786 } 787 #endif 788 #if defined(__i386__) 789 /* make long doubles 64 bits -sson */ 790 (void) fpsetprec(FP_PE); 791 #endif 792 } 793 794 static dtrace_hdl_t * 795 set_open_errno(dtrace_hdl_t *dtp, int *errp, int err) 796 { 797 if (dtp != NULL) 798 dtrace_close(dtp); 799 if (errp != NULL) 800 *errp = err; 801 return (NULL); 802 } 803 804 static void 805 dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp) 806 { 807 dt_provmod_t *prov; 808 char path[PATH_MAX]; 809 int fd; 810 #if defined(sun) 811 struct dirent *dp, *ep; 812 DIR *dirp; 813 814 if ((dirp = opendir(_dtrace_provdir)) == NULL) 815 return; /* failed to open directory; just skip it */ 816 817 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1); 818 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1); 819 820 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) { 821 if (dp->d_name[0] == '.') 822 continue; /* skip "." and ".." */ 823 824 if (dfp->df_ents == dfp->df_size) { 825 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 826 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 827 828 if (fds == NULL) 829 break; /* skip the rest of this directory */ 830 831 dfp->df_fds = fds; 832 dfp->df_size = size; 833 } 834 835 (void) snprintf(path, sizeof (path), "%s/%s", 836 _dtrace_provdir, dp->d_name); 837 838 if ((fd = open(path, O_RDONLY)) == -1) 839 continue; /* failed to open driver; just skip it */ 840 841 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 842 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) { 843 free(prov); 844 (void) close(fd); 845 break; 846 } 847 848 (void) strcpy(prov->dp_name, dp->d_name); 849 prov->dp_next = *provmod; 850 *provmod = prov; 851 852 dt_dprintf("opened provider %s\n", dp->d_name); 853 dfp->df_fds[dfp->df_ents++] = fd; 854 } 855 856 (void) closedir(dirp); 857 #else 858 char *p; 859 char *p1; 860 char *p_providers = NULL; 861 int error; 862 size_t len = 0; 863 864 /* 865 * Loop to allocate/reallocate memory for the string of provider 866 * names and retry: 867 */ 868 while(1) { 869 /* 870 * The first time around, get the string length. The next time, 871 * hopefully we've allocated enough memory. 872 */ 873 error = sysctlbyname("debug.dtrace.providers",p_providers,&len,NULL,0); 874 if (len == 0) 875 /* No providers? That's strange. Where's dtrace? */ 876 break; 877 else if (error == 0 && p_providers == NULL) { 878 /* 879 * Allocate the initial memory which should be enough 880 * unless another provider loads before we have 881 * time to go back and get the string. 882 */ 883 if ((p_providers = malloc(len)) == NULL) 884 /* How do we report errors here? */ 885 return; 886 } else if (error == -1 && errno == ENOMEM) { 887 /* 888 * The current buffer isn't large enough, so 889 * reallocate it. We normally won't need to do this 890 * because providers aren't being loaded all the time. 891 */ 892 if ((p = realloc(p_providers,len)) == NULL) 893 /* How do we report errors here? */ 894 return; 895 p_providers = p; 896 } else 897 break; 898 } 899 900 /* Check if we got a string of provider names: */ 901 if (error == 0 && len > 0 && p_providers != NULL) { 902 p = p_providers; 903 904 /* 905 * Parse the string containing the space separated 906 * provider names. 907 */ 908 while ((p1 = strsep(&p," ")) != NULL) { 909 if (dfp->df_ents == dfp->df_size) { 910 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 911 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 912 913 if (fds == NULL) 914 break; 915 916 dfp->df_fds = fds; 917 dfp->df_size = size; 918 } 919 920 (void) snprintf(path, sizeof (path), "/dev/dtrace/%s", p1); 921 922 if ((fd = open(path, O_RDONLY)) == -1) 923 continue; /* failed to open driver; just skip it */ 924 925 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 926 (prov->dp_name = malloc(strlen(p1) + 1)) == NULL) { 927 free(prov); 928 (void) close(fd); 929 break; 930 } 931 932 (void) strcpy(prov->dp_name, p1); 933 prov->dp_next = *provmod; 934 *provmod = prov; 935 936 dt_dprintf("opened provider %s\n", p1); 937 dfp->df_fds[dfp->df_ents++] = fd; 938 } 939 } 940 if (p_providers != NULL) 941 free(p_providers); 942 #endif 943 } 944 945 static void 946 dt_provmod_destroy(dt_provmod_t **provmod) 947 { 948 dt_provmod_t *next, *current; 949 950 for (current = *provmod; current != NULL; current = next) { 951 next = current->dp_next; 952 free(current->dp_name); 953 free(current); 954 } 955 956 *provmod = NULL; 957 } 958 959 #if defined(sun) 960 static const char * 961 dt_get_sysinfo(int cmd, char *buf, size_t len) 962 { 963 ssize_t rv = sysinfo(cmd, buf, len); 964 char *p = buf; 965 966 if (rv < 0 || rv > len) 967 (void) snprintf(buf, len, "%s", "Unknown"); 968 969 while ((p = strchr(p, '.')) != NULL) 970 *p++ = '_'; 971 972 return (buf); 973 } 974 #endif 975 976 static dtrace_hdl_t * 977 dt_vopen(int version, int flags, int *errp, 978 const dtrace_vector_t *vector, void *arg) 979 { 980 dtrace_hdl_t *dtp = NULL; 981 int dtfd = -1, ftfd = -1, fterr = 0; 982 dtrace_prog_t *pgp; 983 dt_module_t *dmp; 984 dt_provmod_t *provmod = NULL; 985 int i, err; 986 struct rlimit rl; 987 988 const dt_intrinsic_t *dinp; 989 const dt_typedef_t *dtyp; 990 const dt_ident_t *idp; 991 992 dtrace_typeinfo_t dtt; 993 ctf_funcinfo_t ctc; 994 ctf_arinfo_t ctr; 995 996 dt_fdlist_t df = { NULL, 0, 0 }; 997 998 char isadef[32], utsdef[32]; 999 char s1[64], s2[64]; 1000 1001 if (version <= 0) 1002 return (set_open_errno(dtp, errp, EINVAL)); 1003 1004 if (version > DTRACE_VERSION) 1005 return (set_open_errno(dtp, errp, EDT_VERSION)); 1006 1007 if (version < DTRACE_VERSION) { 1008 /* 1009 * Currently, increasing the library version number is used to 1010 * denote a binary incompatible change. That is, a consumer 1011 * of the library cannot run on a version of the library with 1012 * a higher DTRACE_VERSION number than the consumer compiled 1013 * against. Once the library API has been committed to, 1014 * backwards binary compatibility will be required; at that 1015 * time, this check should change to return EDT_OVERSION only 1016 * if the specified version number is less than the version 1017 * number at the time of interface commitment. 1018 */ 1019 return (set_open_errno(dtp, errp, EDT_OVERSION)); 1020 } 1021 1022 if (flags & ~DTRACE_O_MASK) 1023 return (set_open_errno(dtp, errp, EINVAL)); 1024 1025 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32)) 1026 return (set_open_errno(dtp, errp, EINVAL)); 1027 1028 if (vector == NULL && arg != NULL) 1029 return (set_open_errno(dtp, errp, EINVAL)); 1030 1031 if (elf_version(EV_CURRENT) == EV_NONE) 1032 return (set_open_errno(dtp, errp, EDT_ELFVERSION)); 1033 1034 if (vector != NULL || (flags & DTRACE_O_NODEV)) 1035 goto alloc; /* do not attempt to open dtrace device */ 1036 1037 /* 1038 * Before we get going, crank our limit on file descriptors up to the 1039 * hard limit. This is to allow for the fact that libproc keeps file 1040 * descriptors to objects open for the lifetime of the proc handle; 1041 * without raising our hard limit, we would have an acceptably small 1042 * bound on the number of processes that we could concurrently 1043 * instrument with the pid provider. 1044 */ 1045 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) { 1046 rl.rlim_cur = rl.rlim_max; 1047 (void) setrlimit(RLIMIT_NOFILE, &rl); 1048 } 1049 1050 /* 1051 * Get the device path of each of the providers. We hold them open 1052 * in the df.df_fds list until we open the DTrace driver itself, 1053 * allowing us to see all of the probes provided on this system. Once 1054 * we have the DTrace driver open, we can safely close all the providers 1055 * now that they have registered with the framework. 1056 */ 1057 dt_provmod_open(&provmod, &df); 1058 1059 dtfd = open("/dev/dtrace/dtrace", O_RDWR); 1060 err = errno; /* save errno from opening dtfd */ 1061 1062 #if defined(sun) 1063 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR); 1064 #else 1065 ftfd = open("/dev/dtrace/fasttrap", O_RDWR); 1066 #endif 1067 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */ 1068 1069 while (df.df_ents-- != 0) 1070 (void) close(df.df_fds[df.df_ents]); 1071 1072 free(df.df_fds); 1073 1074 /* 1075 * If we failed to open the dtrace device, fail dtrace_open(). 1076 * We convert some kernel errnos to custom libdtrace errnos to 1077 * improve the resulting message from the usual strerror(). 1078 */ 1079 if (dtfd == -1) { 1080 dt_provmod_destroy(&provmod); 1081 switch (err) { 1082 case ENOENT: 1083 err = EDT_NOENT; 1084 break; 1085 case EBUSY: 1086 err = EDT_BUSY; 1087 break; 1088 case EACCES: 1089 err = EDT_ACCESS; 1090 break; 1091 } 1092 return (set_open_errno(dtp, errp, err)); 1093 } 1094 1095 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC); 1096 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC); 1097 1098 alloc: 1099 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL) 1100 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1101 1102 bzero(dtp, sizeof (dtrace_hdl_t)); 1103 dtp->dt_oflags = flags; 1104 dtp->dt_prcmode = DT_PROC_STOP_PREINIT; 1105 dtp->dt_linkmode = DT_LINK_KERNEL; 1106 dtp->dt_linktype = DT_LTYP_ELF; 1107 dtp->dt_xlatemode = DT_XL_STATIC; 1108 dtp->dt_stdcmode = DT_STDC_XA; 1109 dtp->dt_version = version; 1110 dtp->dt_fd = dtfd; 1111 dtp->dt_ftfd = ftfd; 1112 dtp->dt_fterr = fterr; 1113 dtp->dt_cdefs_fd = -1; 1114 dtp->dt_ddefs_fd = -1; 1115 #if defined(sun) 1116 dtp->dt_stdout_fd = -1; 1117 #else 1118 dtp->dt_freopen_fp = NULL; 1119 #endif 1120 dtp->dt_modbuckets = _dtrace_strbuckets; 1121 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *)); 1122 dtp->dt_provbuckets = _dtrace_strbuckets; 1123 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *)); 1124 dt_proc_hash_create(dtp); 1125 dtp->dt_vmax = DT_VERS_LATEST; 1126 dtp->dt_cpp_path = strdup(_dtrace_defcpp); 1127 dtp->dt_cpp_argv = malloc(sizeof (char *)); 1128 dtp->dt_cpp_argc = 1; 1129 dtp->dt_cpp_args = 1; 1130 dtp->dt_ld_path = strdup(_dtrace_defld); 1131 dtp->dt_provmod = provmod; 1132 dtp->dt_vector = vector; 1133 dtp->dt_varg = arg; 1134 dt_dof_init(dtp); 1135 (void) uname(&dtp->dt_uts); 1136 1137 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL || 1138 dtp->dt_procs == NULL || dtp->dt_ld_path == NULL || 1139 dtp->dt_cpp_path == NULL || dtp->dt_cpp_argv == NULL) 1140 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1141 1142 for (i = 0; i < DTRACEOPT_MAX; i++) 1143 dtp->dt_options[i] = DTRACEOPT_UNSET; 1144 1145 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path); 1146 1147 #if defined(sun) 1148 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u", 1149 (uint_t)(sizeof (void *) * NBBY)); 1150 1151 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s", 1152 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)), 1153 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2))); 1154 1155 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL || 1156 dt_cpp_add_arg(dtp, "-D__unix") == NULL || 1157 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL || 1158 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL || 1159 dt_cpp_add_arg(dtp, isadef) == NULL || 1160 dt_cpp_add_arg(dtp, utsdef) == NULL) 1161 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1162 #endif 1163 1164 if (flags & DTRACE_O_NODEV) 1165 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf)); 1166 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0) 1167 return (set_open_errno(dtp, errp, errno)); 1168 1169 if (flags & DTRACE_O_LP64) 1170 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64; 1171 else if (flags & DTRACE_O_ILP32) 1172 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32; 1173 1174 #ifdef __sparc 1175 /* 1176 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h> 1177 * and __sparcv9 is defined if we are doing a 64-bit compile. 1178 */ 1179 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL) 1180 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1181 1182 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 && 1183 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL) 1184 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1185 #endif 1186 1187 #if defined(sun) 1188 #ifdef __x86 1189 /* 1190 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit 1191 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC, 1192 * they are defined exclusive of one another (see PSARC 2004/619). 1193 */ 1194 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 1195 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL) 1196 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1197 } else { 1198 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL) 1199 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1200 } 1201 #endif 1202 #else 1203 #if defined(__amd64__) || defined(__i386__) 1204 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 1205 if (dt_cpp_add_arg(dtp, "-m64") == NULL) 1206 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1207 } else { 1208 if (dt_cpp_add_arg(dtp, "-m32") == NULL) 1209 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1210 } 1211 #endif 1212 #endif 1213 1214 if (dtp->dt_conf.dtc_difversion < DIF_VERSION) 1215 return (set_open_errno(dtp, errp, EDT_DIFVERS)); 1216 1217 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) 1218 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32)); 1219 else 1220 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64)); 1221 1222 /* 1223 * On FreeBSD the kernel module name can't be hard-coded. The 1224 * 'kern.bootfile' sysctl value tells us exactly which file is being 1225 * used as the kernel. 1226 */ 1227 #if !defined(sun) 1228 { 1229 char bootfile[MAXPATHLEN]; 1230 char *p; 1231 int i; 1232 size_t len = sizeof(bootfile); 1233 1234 /* This call shouldn't fail, but use a default just in case. */ 1235 if (sysctlbyname("kern.bootfile", bootfile, &len, NULL, 0) != 0) 1236 strlcpy(bootfile, "kernel", sizeof(bootfile)); 1237 1238 if ((p = strrchr(bootfile, '/')) != NULL) 1239 p++; 1240 else 1241 p = bootfile; 1242 1243 /* 1244 * Format the global variables based on the kernel module name. 1245 */ 1246 snprintf(curthread_str, sizeof(curthread_str), "%s`struct thread *",p); 1247 snprintf(intmtx_str, sizeof(intmtx_str), "int(%s`struct mtx *)",p); 1248 snprintf(threadmtx_str, sizeof(threadmtx_str), "struct thread *(%s`struct mtx *)",p); 1249 snprintf(rwlock_str, sizeof(rwlock_str), "int(%s`struct rwlock *)",p); 1250 snprintf(sxlock_str, sizeof(sxlock_str), "int(%s`struct sxlock *)",p); 1251 } 1252 #endif 1253 1254 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX); 1255 dtp->dt_aggs = dt_idhash_create("aggregation", NULL, 1256 DTRACE_AGGVARIDNONE + 1, UINT_MAX); 1257 1258 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals, 1259 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1260 1261 dtp->dt_tls = dt_idhash_create("thread local", NULL, 1262 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1263 1264 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL || 1265 dtp->dt_globals == NULL || dtp->dt_tls == NULL) 1266 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1267 1268 /* 1269 * Populate the dt_macros identifier hash table by hand: we can't use 1270 * the dt_idhash_populate() mechanism because we're not yet compiling 1271 * and dtrace_update() needs to immediately reference these idents. 1272 */ 1273 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) { 1274 if (dt_idhash_insert(dtp->dt_macros, idp->di_name, 1275 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr, 1276 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw, 1277 idp->di_iarg, 0) == NULL) 1278 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1279 } 1280 1281 /* 1282 * Update the module list using /system/object and load the values for 1283 * the macro variable definitions according to the current process. 1284 */ 1285 dtrace_update(dtp); 1286 1287 /* 1288 * Select the intrinsics and typedefs we want based on the data model. 1289 * The intrinsics are under "C". The typedefs are added under "D". 1290 */ 1291 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) { 1292 dinp = _dtrace_intrinsics_32; 1293 dtyp = _dtrace_typedefs_32; 1294 } else { 1295 dinp = _dtrace_intrinsics_64; 1296 dtyp = _dtrace_typedefs_64; 1297 } 1298 1299 /* 1300 * Create a dynamic CTF container under the "C" scope for intrinsic 1301 * types and types defined in ANSI-C header files that are included. 1302 */ 1303 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL) 1304 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1305 1306 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1307 return (set_open_errno(dtp, errp, EDT_CTF)); 1308 1309 dt_dprintf("created CTF container for %s (%p)\n", 1310 dmp->dm_name, (void *)dmp->dm_ctfp); 1311 1312 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1313 ctf_setspecific(dmp->dm_ctfp, dmp); 1314 1315 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1316 dmp->dm_modid = -1; /* no module ID */ 1317 1318 /* 1319 * Fill the dynamic "C" CTF container with all of the intrinsic 1320 * integer and floating-point types appropriate for this data model. 1321 */ 1322 for (; dinp->din_name != NULL; dinp++) { 1323 if (dinp->din_kind == CTF_K_INTEGER) { 1324 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT, 1325 dinp->din_name, &dinp->din_data); 1326 } else { 1327 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT, 1328 dinp->din_name, &dinp->din_data); 1329 } 1330 1331 if (err == CTF_ERR) { 1332 dt_dprintf("failed to add %s to C container: %s\n", 1333 dinp->din_name, ctf_errmsg( 1334 ctf_errno(dmp->dm_ctfp))); 1335 return (set_open_errno(dtp, errp, EDT_CTF)); 1336 } 1337 } 1338 1339 if (ctf_update(dmp->dm_ctfp) != 0) { 1340 dt_dprintf("failed to update C container: %s\n", 1341 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1342 return (set_open_errno(dtp, errp, EDT_CTF)); 1343 } 1344 1345 /* 1346 * Add intrinsic pointer types that are needed to initialize printf 1347 * format dictionary types (see table in dt_printf.c). 1348 */ 1349 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1350 ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1351 1352 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1353 ctf_lookup_by_name(dmp->dm_ctfp, "char")); 1354 1355 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1356 ctf_lookup_by_name(dmp->dm_ctfp, "int")); 1357 1358 if (ctf_update(dmp->dm_ctfp) != 0) { 1359 dt_dprintf("failed to update C container: %s\n", 1360 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1361 return (set_open_errno(dtp, errp, EDT_CTF)); 1362 } 1363 1364 /* 1365 * Create a dynamic CTF container under the "D" scope for types that 1366 * are defined by the D program itself or on-the-fly by the D compiler. 1367 * The "D" CTF container is a child of the "C" CTF container. 1368 */ 1369 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL) 1370 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1371 1372 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1373 return (set_open_errno(dtp, errp, EDT_CTF)); 1374 1375 dt_dprintf("created CTF container for %s (%p)\n", 1376 dmp->dm_name, (void *)dmp->dm_ctfp); 1377 1378 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1379 ctf_setspecific(dmp->dm_ctfp, dmp); 1380 1381 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1382 dmp->dm_modid = -1; /* no module ID */ 1383 1384 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) { 1385 dt_dprintf("failed to import D parent container: %s\n", 1386 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1387 return (set_open_errno(dtp, errp, EDT_CTF)); 1388 } 1389 1390 /* 1391 * Fill the dynamic "D" CTF container with all of the built-in typedefs 1392 * that we need to use for our D variable and function definitions. 1393 * This ensures that basic inttypes.h names are always available to us. 1394 */ 1395 for (; dtyp->dty_src != NULL; dtyp++) { 1396 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1397 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp, 1398 dtyp->dty_src)) == CTF_ERR) { 1399 dt_dprintf("failed to add typedef %s %s to D " 1400 "container: %s", dtyp->dty_src, dtyp->dty_dst, 1401 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1402 return (set_open_errno(dtp, errp, EDT_CTF)); 1403 } 1404 } 1405 1406 /* 1407 * Insert a CTF ID corresponding to a pointer to a type of kind 1408 * CTF_K_FUNCTION we can use in the compiler for function pointers. 1409 * CTF treats all function pointers as "int (*)()" so we only need one. 1410 */ 1411 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int"); 1412 ctc.ctc_argc = 0; 1413 ctc.ctc_flags = 0; 1414 1415 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp, 1416 CTF_ADD_ROOT, &ctc, NULL); 1417 1418 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp, 1419 CTF_ADD_ROOT, dtp->dt_type_func); 1420 1421 /* 1422 * We also insert CTF definitions for the special D intrinsic types 1423 * string and <DYN> into the D container. The string type is added 1424 * as a typedef of char[n]. The <DYN> type is an alias for void. 1425 * We compare types to these special CTF ids throughout the compiler. 1426 */ 1427 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char"); 1428 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long"); 1429 ctr.ctr_nelems = _dtrace_strsize; 1430 1431 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1432 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr)); 1433 1434 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1435 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1436 1437 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1438 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1439 1440 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1441 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1442 1443 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1444 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1445 1446 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR || 1447 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR || 1448 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR || 1449 dtp->dt_type_usymaddr == CTF_ERR) { 1450 dt_dprintf("failed to add intrinsic to D container: %s\n", 1451 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1452 return (set_open_errno(dtp, errp, EDT_CTF)); 1453 } 1454 1455 if (ctf_update(dmp->dm_ctfp) != 0) { 1456 dt_dprintf("failed update D container: %s\n", 1457 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1458 return (set_open_errno(dtp, errp, EDT_CTF)); 1459 } 1460 1461 /* 1462 * Initialize the integer description table used to convert integer 1463 * constants to the appropriate types. Refer to the comments above 1464 * dt_node_int() for a complete description of how this table is used. 1465 */ 1466 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) { 1467 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY, 1468 dtp->dt_ints[i].did_name, &dtt) != 0) { 1469 dt_dprintf("failed to lookup integer type %s: %s\n", 1470 dtp->dt_ints[i].did_name, 1471 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1472 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1473 } 1474 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp; 1475 dtp->dt_ints[i].did_type = dtt.dtt_type; 1476 } 1477 1478 /* 1479 * Now that we've created the "C" and "D" containers, move them to the 1480 * start of the module list so that these types and symbols are found 1481 * first (for stability) when iterating through the module list. 1482 */ 1483 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs); 1484 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs); 1485 1486 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs); 1487 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs); 1488 1489 if (dt_pfdict_create(dtp) == -1) 1490 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1491 1492 /* 1493 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default 1494 * because without /dev/dtrace open, we will not be able to load the 1495 * names and attributes of any providers or probes from the kernel. 1496 */ 1497 if (flags & DTRACE_O_NODEV) 1498 dtp->dt_cflags |= DTRACE_C_ZDEFS; 1499 1500 /* 1501 * Load hard-wired inlines into the definition cache by calling the 1502 * compiler on the raw definition string defined above. 1503 */ 1504 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire, 1505 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) { 1506 dt_dprintf("failed to load hard-wired definitions: %s\n", 1507 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1508 return (set_open_errno(dtp, errp, EDT_HARDWIRE)); 1509 } 1510 1511 dt_program_destroy(dtp, pgp); 1512 1513 /* 1514 * Set up the default DTrace library path. Once set, the next call to 1515 * dt_compile() will compile all the libraries. We intentionally defer 1516 * library processing to improve overhead for clients that don't ever 1517 * compile, and to provide better error reporting (because the full 1518 * reporting of compiler errors requires dtrace_open() to succeed). 1519 */ 1520 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0) 1521 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1522 1523 return (dtp); 1524 } 1525 1526 dtrace_hdl_t * 1527 dtrace_open(int version, int flags, int *errp) 1528 { 1529 return (dt_vopen(version, flags, errp, NULL, NULL)); 1530 } 1531 1532 dtrace_hdl_t * 1533 dtrace_vopen(int version, int flags, int *errp, 1534 const dtrace_vector_t *vector, void *arg) 1535 { 1536 return (dt_vopen(version, flags, errp, vector, arg)); 1537 } 1538 1539 void 1540 dtrace_close(dtrace_hdl_t *dtp) 1541 { 1542 dt_ident_t *idp, *ndp; 1543 dt_module_t *dmp; 1544 dt_provider_t *pvp; 1545 dtrace_prog_t *pgp; 1546 dt_xlator_t *dxp; 1547 dt_dirpath_t *dirp; 1548 int i; 1549 1550 if (dtp->dt_procs != NULL) 1551 dt_proc_hash_destroy(dtp); 1552 1553 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL) 1554 dt_program_destroy(dtp, pgp); 1555 1556 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL) 1557 dt_xlator_destroy(dtp, dxp); 1558 1559 dt_free(dtp, dtp->dt_xlatormap); 1560 1561 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) { 1562 ndp = idp->di_next; 1563 dt_ident_destroy(idp); 1564 } 1565 1566 if (dtp->dt_macros != NULL) 1567 dt_idhash_destroy(dtp->dt_macros); 1568 if (dtp->dt_aggs != NULL) 1569 dt_idhash_destroy(dtp->dt_aggs); 1570 if (dtp->dt_globals != NULL) 1571 dt_idhash_destroy(dtp->dt_globals); 1572 if (dtp->dt_tls != NULL) 1573 dt_idhash_destroy(dtp->dt_tls); 1574 1575 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL) 1576 dt_module_destroy(dtp, dmp); 1577 1578 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL) 1579 dt_provider_destroy(dtp, pvp); 1580 1581 if (dtp->dt_fd != -1) 1582 (void) close(dtp->dt_fd); 1583 if (dtp->dt_ftfd != -1) 1584 (void) close(dtp->dt_ftfd); 1585 if (dtp->dt_cdefs_fd != -1) 1586 (void) close(dtp->dt_cdefs_fd); 1587 if (dtp->dt_ddefs_fd != -1) 1588 (void) close(dtp->dt_ddefs_fd); 1589 #if defined(sun) 1590 if (dtp->dt_stdout_fd != -1) 1591 (void) close(dtp->dt_stdout_fd); 1592 #else 1593 if (dtp->dt_freopen_fp != NULL) 1594 (void) fclose(dtp->dt_freopen_fp); 1595 #endif 1596 1597 dt_epid_destroy(dtp); 1598 dt_aggid_destroy(dtp); 1599 dt_format_destroy(dtp); 1600 dt_buffered_destroy(dtp); 1601 dt_aggregate_destroy(dtp); 1602 free(dtp->dt_buf.dtbd_data); 1603 dt_pfdict_destroy(dtp); 1604 dt_provmod_destroy(&dtp->dt_provmod); 1605 dt_dof_fini(dtp); 1606 1607 for (i = 1; i < dtp->dt_cpp_argc; i++) 1608 free(dtp->dt_cpp_argv[i]); 1609 1610 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) { 1611 dt_list_delete(&dtp->dt_lib_path, dirp); 1612 free(dirp->dir_path); 1613 free(dirp); 1614 } 1615 1616 free(dtp->dt_cpp_argv); 1617 free(dtp->dt_cpp_path); 1618 free(dtp->dt_ld_path); 1619 1620 free(dtp->dt_mods); 1621 free(dtp->dt_provs); 1622 free(dtp); 1623 } 1624 1625 int 1626 dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods) 1627 { 1628 dt_provmod_t *prov; 1629 int i = 0; 1630 1631 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) { 1632 if (i < nmods) 1633 mods[i] = prov->dp_name; 1634 } 1635 1636 return (i); 1637 } 1638 1639 int 1640 dtrace_ctlfd(dtrace_hdl_t *dtp) 1641 { 1642 return (dtp->dt_fd); 1643 } 1644