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_1_6_2 DT_VERSION_NUMBER(1, 6, 2) 119 #define DT_VERS_LATEST DT_VERS_1_6_2 120 #define DT_VERS_STRING "Sun D 1.6.2" 121 122 const dt_version_t _dtrace_versions[] = { 123 DT_VERS_1_0, /* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */ 124 DT_VERS_1_1, /* D API 1.1.0 Solaris Express 6/05 */ 125 DT_VERS_1_2, /* D API 1.2.0 Solaris 10 Update 1 */ 126 DT_VERS_1_2_1, /* D API 1.2.1 Solaris Express 4/06 */ 127 DT_VERS_1_2_2, /* D API 1.2.2 Solaris Express 6/06 */ 128 DT_VERS_1_3, /* D API 1.3 Solaris Express 10/06 */ 129 DT_VERS_1_4, /* D API 1.4 Solaris Express 2/07 */ 130 DT_VERS_1_4_1, /* D API 1.4.1 Solaris Express 4/07 */ 131 DT_VERS_1_5, /* D API 1.5 Solaris Express 7/07 */ 132 DT_VERS_1_6, /* D API 1.6 */ 133 DT_VERS_1_6_1, /* D API 1.6.1 */ 134 DT_VERS_1_6_2, /* D API 1.6.2 */ 135 0 136 }; 137 138 /* 139 * Global variables that are formatted on FreeBSD based on the kernel file name. 140 */ 141 #if !defined(sun) 142 static char curthread_str[MAXPATHLEN]; 143 static char intmtx_str[MAXPATHLEN]; 144 static char threadmtx_str[MAXPATHLEN]; 145 static char rwlock_str[MAXPATHLEN]; 146 static char sxlock_str[MAXPATHLEN]; 147 #endif 148 149 /* 150 * Table of global identifiers. This is used to populate the global identifier 151 * hash when a new dtrace client open occurs. For more info see dt_ident.h. 152 * The global identifiers that represent functions use the dt_idops_func ops 153 * and specify the private data pointer as a prototype string which is parsed 154 * when the identifier is first encountered. These prototypes look like ANSI 155 * C function prototypes except that the special symbol "@" can be used as a 156 * wildcard to represent a single parameter of any type (i.e. any dt_node_t). 157 * The standard "..." notation can also be used to represent varargs. An empty 158 * parameter list is taken to mean void (that is, no arguments are permitted). 159 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional 160 * argument. 161 */ 162 static const dt_ident_t _dtrace_globals[] = { 163 { "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0, 164 &dt_idops_func, "void *(size_t)" }, 165 { "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0, 166 &dt_idops_type, "int64_t" }, 167 { "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0, 168 &dt_idops_type, "int64_t" }, 169 { "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0, 170 &dt_idops_type, "int64_t" }, 171 { "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0, 172 &dt_idops_type, "int64_t" }, 173 { "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0, 174 &dt_idops_type, "int64_t" }, 175 { "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0, 176 &dt_idops_type, "int64_t" }, 177 { "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0, 178 &dt_idops_type, "int64_t" }, 179 { "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0, 180 &dt_idops_type, "int64_t" }, 181 { "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0, 182 &dt_idops_type, "int64_t" }, 183 { "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0, 184 &dt_idops_type, "int64_t" }, 185 { "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0, 186 &dt_idops_args, NULL }, 187 { "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0, 188 &dt_idops_func, "void(@)" }, 189 { "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0, 190 &dt_idops_func, "string(const char *)" }, 191 { "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0, 192 &dt_idops_func, "void(void *, void *, size_t)" }, 193 { "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT, 194 DT_ATTR_STABCMN, DT_VERS_1_0, 195 &dt_idops_func, "void()" }, 196 { "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0, 197 &dt_idops_type, "uintptr_t" }, 198 { "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0, 199 &dt_idops_func, "void(int)" }, 200 { "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN, 201 DT_VERS_1_0, &dt_idops_func, "string(const char *)" }, 202 { "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0, 203 &dt_idops_func, "void(...)" }, 204 { "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0, 205 &dt_idops_func, "void(int)" }, 206 { "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0, 207 &dt_idops_func, "void *(uintptr_t, size_t)" }, 208 { "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR, 209 DT_ATTR_STABCMN, DT_VERS_1_0, 210 &dt_idops_func, "string(uintptr_t, [size_t])" }, 211 { "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN, 212 DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" }, 213 { "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0, 214 &dt_idops_func, "void(void *, uintptr_t, size_t)" }, 215 { "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR, 216 DT_ATTR_STABCMN, DT_VERS_1_0, 217 &dt_idops_func, "void(char *, uintptr_t, size_t)" }, 218 { "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0, 219 &dt_idops_func, "void()" }, 220 { "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD, 221 { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE, 222 DTRACE_CLASS_COMMON }, DT_VERS_1_0, 223 #if defined(sun) 224 &dt_idops_type, "genunix`kthread_t *" }, 225 #else 226 &dt_idops_type, curthread_str }, 227 #endif 228 { "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME, 229 DT_ATTR_EVOLCMN, DT_VERS_1_0, 230 &dt_idops_func, "string(void *, int64_t)" }, 231 { "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN, 232 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 233 { "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0, 234 &dt_idops_func, "string(const char *)" }, 235 { "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0, 236 &dt_idops_func, "void(int)" }, 237 { "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0, 238 &dt_idops_type, "uint_t" }, 239 { "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0, 240 &dt_idops_type, "int" }, 241 { "execargs", DT_IDENT_SCALAR, 0, DIF_VAR_EXECARGS, 242 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 243 { "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME, 244 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 245 { "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0, 246 &dt_idops_func, "void(int)" }, 247 { "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN, 248 DT_VERS_1_1, &dt_idops_func, "void(@, ...)" }, 249 { "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN, 250 DT_VERS_1_0, &dt_idops_func, "void()" }, 251 { "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 252 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 253 { "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR, 254 DT_ATTR_EVOLCMN, DT_VERS_1_0, 255 &dt_idops_func, "genunix`major_t(genunix`dev_t)" }, 256 { "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR, 257 DT_ATTR_EVOLCMN, DT_VERS_1_0, 258 &dt_idops_func, "genunix`minor_t(genunix`dev_t)" }, 259 { "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 260 &dt_idops_func, "uint32_t(uint32_t)" }, 261 { "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 262 &dt_idops_func, "uint64_t(uint64_t)" }, 263 { "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 264 &dt_idops_func, "uint16_t(uint16_t)" }, 265 { "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0, 266 &dt_idops_type, "gid_t" }, 267 { "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0, 268 &dt_idops_type, "uint_t" }, 269 { "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 270 &dt_idops_func, "int(const char *, const char *, [int])" }, 271 { "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN, 272 #if defined(sun) 273 DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" }, 274 #else 275 DT_VERS_1_5, &dt_idops_func, "string(in_addr_t *)" }, 276 #endif 277 { "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN, 278 #if defined(sun) 279 DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" }, 280 #else 281 DT_VERS_1_5, &dt_idops_func, "string(struct in6_addr *)" }, 282 #endif 283 { "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN, 284 DT_VERS_1_5, &dt_idops_func, "string(int, void *)" }, 285 { "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0, 286 &dt_idops_type, "uint_t" }, 287 #if defined(sun) 288 { "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 289 &dt_idops_func, "stack(...)" }, 290 #endif 291 { "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0, 292 &dt_idops_func, "string(int64_t)" }, 293 { "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE, 294 DT_ATTR_STABCMN, DT_VERS_1_0, 295 &dt_idops_func, "void(@, int32_t, int32_t, ...)" }, 296 { "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0, 297 &dt_idops_func, "void(@)" }, 298 { "memref", DT_IDENT_FUNC, 0, DIF_SUBR_MEMREF, DT_ATTR_STABCMN, DT_VERS_1_1, 299 &dt_idops_func, "uintptr_t *(void *, size_t)" }, 300 { "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0, 301 &dt_idops_func, "void(@)" }, 302 { "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN, 303 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 304 { "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE, 305 DT_ATTR_STABCMN, DT_VERS_1_0, 306 &dt_idops_func, "size_t(mblk_t *)" }, 307 { "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE, 308 DT_ATTR_STABCMN, DT_VERS_1_0, 309 &dt_idops_func, "size_t(mblk_t *)" }, 310 #if defined(sun) 311 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 312 DT_ATTR_EVOLCMN, DT_VERS_1_0, 313 &dt_idops_func, "int(genunix`kmutex_t *)" }, 314 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 315 DT_ATTR_EVOLCMN, DT_VERS_1_0, 316 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" }, 317 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 318 DT_ATTR_EVOLCMN, DT_VERS_1_0, 319 &dt_idops_func, "int(genunix`kmutex_t *)" }, 320 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 321 DT_ATTR_EVOLCMN, DT_VERS_1_0, 322 &dt_idops_func, "int(genunix`kmutex_t *)" }, 323 #else 324 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 325 DT_ATTR_EVOLCMN, DT_VERS_1_0, 326 &dt_idops_func, intmtx_str }, 327 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 328 DT_ATTR_EVOLCMN, DT_VERS_1_0, 329 &dt_idops_func, threadmtx_str }, 330 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 331 DT_ATTR_EVOLCMN, DT_VERS_1_0, 332 &dt_idops_func, intmtx_str }, 333 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 334 DT_ATTR_EVOLCMN, DT_VERS_1_0, 335 &dt_idops_func, intmtx_str }, 336 #endif 337 { "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 338 &dt_idops_func, "uint32_t(uint32_t)" }, 339 { "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 340 &dt_idops_func, "uint64_t(uint64_t)" }, 341 { "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 342 &dt_idops_func, "uint16_t(uint16_t)" }, 343 { "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN, 344 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 345 { "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0, 346 &dt_idops_func, "void()" }, 347 { "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0, 348 &dt_idops_type, "pid_t" }, 349 { "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0, 350 &dt_idops_type, "pid_t" }, 351 { "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0, 352 &dt_idops_func, "void(@, ...)" }, 353 { "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0, 354 &dt_idops_func, "void(@, ...)" }, 355 { "printm", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTM, DT_ATTR_STABCMN, DT_VERS_1_0, 356 &dt_idops_func, "void(size_t, uintptr_t *)" }, 357 { "printt", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTT, DT_ATTR_STABCMN, DT_VERS_1_0, 358 &dt_idops_func, "void(size_t, uintptr_t *)" }, 359 { "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC, 360 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 361 { "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD, 362 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 363 { "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME, 364 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 365 { "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV, 366 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 367 { "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF, 368 DT_ATTR_STABCMN, DT_VERS_1_0, 369 &dt_idops_func, "int(pid_t)" }, 370 { "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE, 371 DT_ATTR_STABCMN, DT_VERS_1_0, 372 &dt_idops_func, "void(@, ...)" }, 373 { "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0, 374 &dt_idops_func, "void(int)" }, 375 { "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0, 376 &dt_idops_func, "int()" }, 377 { "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 378 &dt_idops_func, "int(const char *, const char *, [int])" }, 379 #if defined(sun) 380 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 381 DT_ATTR_EVOLCMN, DT_VERS_1_0, 382 &dt_idops_func, "int(genunix`krwlock_t *)" }, 383 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 384 DT_ATTR_EVOLCMN, DT_VERS_1_0, 385 &dt_idops_func, "int(genunix`krwlock_t *)" }, 386 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 387 DT_ATTR_EVOLCMN, DT_VERS_1_0, 388 &dt_idops_func, "int(genunix`krwlock_t *)" }, 389 #else 390 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 391 DT_ATTR_EVOLCMN, DT_VERS_1_0, 392 &dt_idops_func, rwlock_str }, 393 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 394 DT_ATTR_EVOLCMN, DT_VERS_1_0, 395 &dt_idops_func, rwlock_str }, 396 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 397 DT_ATTR_EVOLCMN, DT_VERS_1_0, 398 &dt_idops_func, rwlock_str }, 399 #endif 400 { "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 401 &dt_idops_type, "void" }, 402 { "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN, 403 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" }, 404 { "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE, 405 DT_ATTR_STABCMN, DT_VERS_1_0, 406 &dt_idops_func, "void(int)" }, 407 { "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION, 408 DT_ATTR_STABCMN, DT_VERS_1_0, 409 &dt_idops_func, "int()" }, 410 { "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0, 411 &dt_idops_func, "stack(...)" }, 412 { "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH, 413 DT_ATTR_STABCMN, DT_VERS_1_0, 414 &dt_idops_type, "uint32_t" }, 415 { "stddev", DT_IDENT_AGGFUNC, 0, DTRACEAGG_STDDEV, DT_ATTR_STABCMN, 416 DT_VERS_1_6, &dt_idops_func, "void(@)" }, 417 { "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0, 418 &dt_idops_func, "void()" }, 419 { "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 420 &dt_idops_func, "string(const char *, char)" }, 421 { "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0, 422 &dt_idops_func, "size_t(const char *)" }, 423 { "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0, 424 &dt_idops_func, "string(const char *, const char *)" }, 425 { "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 426 &dt_idops_func, "string(const char *, char)" }, 427 { "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 428 &dt_idops_func, "string(const char *, const char *)" }, 429 { "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1, 430 &dt_idops_func, "string(const char *, const char *)" }, 431 { "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 432 &dt_idops_func, "string(const char *, int, [int])" }, 433 { "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0, 434 &dt_idops_func, "void(@)" }, 435 #if !defined(sun) 436 { "sx_isexclusive", DT_IDENT_FUNC, 0, DIF_SUBR_SX_ISEXCLUSIVE, 437 DT_ATTR_EVOLCMN, DT_VERS_1_0, 438 &dt_idops_func, sxlock_str }, 439 { "sx_shared_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_SHARED_HELD, 440 DT_ATTR_EVOLCMN, DT_VERS_1_0, 441 &dt_idops_func, sxlock_str }, 442 { "sx_exclusive_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_EXCLUSIVE_HELD, 443 DT_ATTR_EVOLCMN, DT_VERS_1_0, 444 &dt_idops_func, sxlock_str }, 445 #endif 446 { "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 447 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 448 { "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0, 449 &dt_idops_func, "void(@, ...)" }, 450 { "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 451 &dt_idops_type, "void" }, 452 { "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0, 453 &dt_idops_type, "id_t" }, 454 { "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP, 455 DT_ATTR_STABCMN, DT_VERS_1_0, 456 &dt_idops_type, "uint64_t" }, 457 { "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0, 458 &dt_idops_func, "void(@)" }, 459 { "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM, 460 DT_ATTR_STABCMN, DT_VERS_1_0, 461 &dt_idops_func, "void(@, size_t)" }, 462 { "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN, 463 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 464 { "typeref", DT_IDENT_FUNC, 0, DIF_SUBR_TYPEREF, DT_ATTR_STABCMN, DT_VERS_1_1, 465 &dt_idops_func, "uintptr_t *(void *, size_t, string, size_t)" }, 466 #if defined(sun) 467 { "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN, 468 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 469 { "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN, 470 DT_VERS_1_2, &dt_idops_type, "uint64_t" }, 471 { "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 472 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 473 #endif 474 { "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0, 475 &dt_idops_type, "uid_t" }, 476 #if defined(sun) 477 { "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN, 478 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 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 { "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 487 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 488 #endif 489 { "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP, 490 DT_ATTR_STABCMN, DT_VERS_1_0, 491 &dt_idops_type, "uint64_t" }, 492 { "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP, 493 DT_ATTR_STABCMN, DT_VERS_1_0, 494 &dt_idops_type, "int64_t" }, 495 #if defined(sun) 496 { "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME, 497 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 498 #endif 499 { NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL } 500 }; 501 502 /* 503 * Tables of ILP32 intrinsic integer and floating-point type templates to use 504 * to populate the dynamic "C" CTF type container. 505 */ 506 static const dt_intrinsic_t _dtrace_intrinsics_32[] = { 507 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 508 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 509 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 510 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 511 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 512 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 513 { "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 514 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 515 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 516 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 517 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 518 { "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 519 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 520 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 521 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 522 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 523 { "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER }, 524 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 525 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 526 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 527 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 528 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 529 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 530 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 531 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 532 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 533 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 534 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 535 { NULL, { 0, 0, 0 }, 0 } 536 }; 537 538 /* 539 * Tables of LP64 intrinsic integer and floating-point type templates to use 540 * to populate the dynamic "C" CTF type container. 541 */ 542 static const dt_intrinsic_t _dtrace_intrinsics_64[] = { 543 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 544 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 545 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 546 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 547 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 548 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 549 { "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 550 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 551 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 552 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 553 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 554 { "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 555 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 556 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 557 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 558 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 559 { "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER }, 560 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 561 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 562 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 563 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 564 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 565 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 566 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 567 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 568 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 569 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 570 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 571 { NULL, { 0, 0, 0 }, 0 } 572 }; 573 574 /* 575 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container. 576 * These aliases ensure that D definitions can use typical <sys/types.h> names. 577 */ 578 static const dt_typedef_t _dtrace_typedefs_32[] = { 579 { "char", "int8_t" }, 580 { "short", "int16_t" }, 581 { "int", "int32_t" }, 582 { "long long", "int64_t" }, 583 { "int", "intptr_t" }, 584 { "int", "ssize_t" }, 585 { "unsigned char", "uint8_t" }, 586 { "unsigned short", "uint16_t" }, 587 { "unsigned", "uint32_t" }, 588 { "unsigned long long", "uint64_t" }, 589 { "unsigned char", "uchar_t" }, 590 { "unsigned short", "ushort_t" }, 591 { "unsigned", "uint_t" }, 592 { "unsigned long", "ulong_t" }, 593 { "unsigned long long", "u_longlong_t" }, 594 { "int", "ptrdiff_t" }, 595 { "unsigned", "uintptr_t" }, 596 { "unsigned", "size_t" }, 597 { "long", "id_t" }, 598 { "long", "pid_t" }, 599 { NULL, NULL } 600 }; 601 602 /* 603 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container. 604 * These aliases ensure that D definitions can use typical <sys/types.h> names. 605 */ 606 static const dt_typedef_t _dtrace_typedefs_64[] = { 607 { "char", "int8_t" }, 608 { "short", "int16_t" }, 609 { "int", "int32_t" }, 610 { "long", "int64_t" }, 611 { "long", "intptr_t" }, 612 { "long", "ssize_t" }, 613 { "unsigned char", "uint8_t" }, 614 { "unsigned short", "uint16_t" }, 615 { "unsigned", "uint32_t" }, 616 { "unsigned long", "uint64_t" }, 617 { "unsigned char", "uchar_t" }, 618 { "unsigned short", "ushort_t" }, 619 { "unsigned", "uint_t" }, 620 { "unsigned long", "ulong_t" }, 621 { "unsigned long long", "u_longlong_t" }, 622 { "long", "ptrdiff_t" }, 623 { "unsigned long", "uintptr_t" }, 624 { "unsigned long", "size_t" }, 625 { "int", "id_t" }, 626 { "int", "pid_t" }, 627 { NULL, NULL } 628 }; 629 630 /* 631 * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[] 632 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 633 */ 634 static const dt_intdesc_t _dtrace_ints_32[] = { 635 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 636 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 637 { "long", NULL, CTF_ERR, 0x7fffffffULL }, 638 { "unsigned long", NULL, CTF_ERR, 0xffffffffULL }, 639 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 640 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 641 }; 642 643 /* 644 * Tables of LP64 integer type templates used to populate the dtp->dt_ints[] 645 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 646 */ 647 static const dt_intdesc_t _dtrace_ints_64[] = { 648 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 649 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 650 { "long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 651 { "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL }, 652 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 653 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 654 }; 655 656 /* 657 * Table of macro variable templates used to populate the macro identifier hash 658 * when a new dtrace client open occurs. Values are set by dtrace_update(). 659 */ 660 static const dt_ident_t _dtrace_macros[] = { 661 { "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 662 { "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 663 { "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 664 { "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 665 { "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 666 { "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 667 { "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 668 { "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 669 { "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 670 { "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 671 { "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 672 { NULL, 0, 0, 0, { 0, 0, 0 }, 0 } 673 }; 674 675 /* 676 * Hard-wired definition string to be compiled and cached every time a new 677 * DTrace library handle is initialized. This string should only be used to 678 * contain definitions that should be present regardless of DTRACE_O_NOLIBS. 679 */ 680 static const char _dtrace_hardwire[] = "\ 681 inline long NULL = 0; \n\ 682 #pragma D binding \"1.0\" NULL\n\ 683 "; 684 685 /* 686 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV. 687 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel. 688 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are 689 * relying on the fact that when running dtrace(1M), isaexec will invoke the 690 * binary with the same bitness as the kernel, which is what we want by default 691 * when generating our DIF. The user can override the choice using oflags. 692 */ 693 static const dtrace_conf_t _dtrace_conf = { 694 DIF_VERSION, /* dtc_difversion */ 695 DIF_DIR_NREGS, /* dtc_difintregs */ 696 DIF_DTR_NREGS, /* dtc_diftupregs */ 697 CTF_MODEL_NATIVE /* dtc_ctfmodel */ 698 }; 699 700 const dtrace_attribute_t _dtrace_maxattr = { 701 DTRACE_STABILITY_MAX, 702 DTRACE_STABILITY_MAX, 703 DTRACE_CLASS_MAX 704 }; 705 706 const dtrace_attribute_t _dtrace_defattr = { 707 DTRACE_STABILITY_STABLE, 708 DTRACE_STABILITY_STABLE, 709 DTRACE_CLASS_COMMON 710 }; 711 712 const dtrace_attribute_t _dtrace_symattr = { 713 DTRACE_STABILITY_PRIVATE, 714 DTRACE_STABILITY_PRIVATE, 715 DTRACE_CLASS_UNKNOWN 716 }; 717 718 const dtrace_attribute_t _dtrace_typattr = { 719 DTRACE_STABILITY_PRIVATE, 720 DTRACE_STABILITY_PRIVATE, 721 DTRACE_CLASS_UNKNOWN 722 }; 723 724 const dtrace_attribute_t _dtrace_prvattr = { 725 DTRACE_STABILITY_PRIVATE, 726 DTRACE_STABILITY_PRIVATE, 727 DTRACE_CLASS_UNKNOWN 728 }; 729 730 const dtrace_pattr_t _dtrace_prvdesc = { 731 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 732 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 733 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 734 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 735 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 736 }; 737 738 #if defined(sun) 739 const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */ 740 const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */ 741 #else 742 const char *_dtrace_defcpp = "cpp"; /* default cpp(1) to invoke */ 743 const char *_dtrace_defld = "ld"; /* default ld(1) to invoke */ 744 #endif 745 746 const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */ 747 #if defined(sun) 748 const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */ 749 #else 750 const char *_dtrace_provdir = "/dev/dtrace"; /* provider directory */ 751 #endif 752 753 int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */ 754 int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */ 755 uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */ 756 uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */ 757 uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */ 758 uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */ 759 size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */ 760 int _dtrace_argmax = 32; /* default maximum number of probe arguments */ 761 762 int _dtrace_debug = 0; /* debug messages enabled (off) */ 763 const char *const _dtrace_version = DT_VERS_STRING; /* API version string */ 764 #if defined(sun) 765 int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */ 766 #endif 767 768 typedef struct dt_fdlist { 769 int *df_fds; /* array of provider driver file descriptors */ 770 uint_t df_ents; /* number of valid elements in df_fds[] */ 771 uint_t df_size; /* size of df_fds[] */ 772 } dt_fdlist_t; 773 774 #if defined(sun) 775 #pragma init(_dtrace_init) 776 #else 777 void _dtrace_init(void) __attribute__ ((constructor)); 778 #endif 779 void 780 _dtrace_init(void) 781 { 782 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL; 783 784 #if defined(sun) 785 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) { 786 if (rd_init(_dtrace_rdvers) == RD_OK) 787 break; 788 } 789 #endif 790 #if defined(__i386__) 791 /* make long doubles 64 bits -sson */ 792 (void) fpsetprec(FP_PE); 793 #endif 794 } 795 796 static dtrace_hdl_t * 797 set_open_errno(dtrace_hdl_t *dtp, int *errp, int err) 798 { 799 if (dtp != NULL) 800 dtrace_close(dtp); 801 if (errp != NULL) 802 *errp = err; 803 return (NULL); 804 } 805 806 static void 807 dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp) 808 { 809 dt_provmod_t *prov; 810 char path[PATH_MAX]; 811 int fd; 812 #if defined(sun) 813 struct dirent *dp, *ep; 814 DIR *dirp; 815 816 if ((dirp = opendir(_dtrace_provdir)) == NULL) 817 return; /* failed to open directory; just skip it */ 818 819 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1); 820 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1); 821 822 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) { 823 if (dp->d_name[0] == '.') 824 continue; /* skip "." and ".." */ 825 826 if (dfp->df_ents == dfp->df_size) { 827 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 828 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 829 830 if (fds == NULL) 831 break; /* skip the rest of this directory */ 832 833 dfp->df_fds = fds; 834 dfp->df_size = size; 835 } 836 837 (void) snprintf(path, sizeof (path), "%s/%s", 838 _dtrace_provdir, dp->d_name); 839 840 if ((fd = open(path, O_RDONLY)) == -1) 841 continue; /* failed to open driver; just skip it */ 842 843 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 844 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) { 845 free(prov); 846 (void) close(fd); 847 break; 848 } 849 850 (void) strcpy(prov->dp_name, dp->d_name); 851 prov->dp_next = *provmod; 852 *provmod = prov; 853 854 dt_dprintf("opened provider %s\n", dp->d_name); 855 dfp->df_fds[dfp->df_ents++] = fd; 856 } 857 858 (void) closedir(dirp); 859 #else 860 char *p; 861 char *p1; 862 char *p_providers = NULL; 863 int error; 864 size_t len = 0; 865 866 /* 867 * Loop to allocate/reallocate memory for the string of provider 868 * names and retry: 869 */ 870 while(1) { 871 /* 872 * The first time around, get the string length. The next time, 873 * hopefully we've allocated enough memory. 874 */ 875 error = sysctlbyname("debug.dtrace.providers",p_providers,&len,NULL,0); 876 if (len == 0) 877 /* No providers? That's strange. Where's dtrace? */ 878 break; 879 else if (error == 0 && p_providers == NULL) { 880 /* 881 * Allocate the initial memory which should be enough 882 * unless another provider loads before we have 883 * time to go back and get the string. 884 */ 885 if ((p_providers = malloc(len)) == NULL) 886 /* How do we report errors here? */ 887 return; 888 } else if (error == -1 && errno == ENOMEM) { 889 /* 890 * The current buffer isn't large enough, so 891 * reallocate it. We normally won't need to do this 892 * because providers aren't being loaded all the time. 893 */ 894 if ((p = realloc(p_providers,len)) == NULL) 895 /* How do we report errors here? */ 896 return; 897 p_providers = p; 898 } else 899 break; 900 } 901 902 /* Check if we got a string of provider names: */ 903 if (error == 0 && len > 0 && p_providers != NULL) { 904 p = p_providers; 905 906 /* 907 * Parse the string containing the space separated 908 * provider names. 909 */ 910 while ((p1 = strsep(&p," ")) != NULL) { 911 if (dfp->df_ents == dfp->df_size) { 912 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 913 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 914 915 if (fds == NULL) 916 break; 917 918 dfp->df_fds = fds; 919 dfp->df_size = size; 920 } 921 922 (void) snprintf(path, sizeof (path), "/dev/dtrace/%s", p1); 923 924 if ((fd = open(path, O_RDONLY)) == -1) 925 continue; /* failed to open driver; just skip it */ 926 927 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 928 (prov->dp_name = malloc(strlen(p1) + 1)) == NULL) { 929 free(prov); 930 (void) close(fd); 931 break; 932 } 933 934 (void) strcpy(prov->dp_name, p1); 935 prov->dp_next = *provmod; 936 *provmod = prov; 937 938 dt_dprintf("opened provider %s\n", p1); 939 dfp->df_fds[dfp->df_ents++] = fd; 940 } 941 } 942 if (p_providers != NULL) 943 free(p_providers); 944 #endif 945 } 946 947 static void 948 dt_provmod_destroy(dt_provmod_t **provmod) 949 { 950 dt_provmod_t *next, *current; 951 952 for (current = *provmod; current != NULL; current = next) { 953 next = current->dp_next; 954 free(current->dp_name); 955 free(current); 956 } 957 958 *provmod = NULL; 959 } 960 961 #if defined(sun) 962 static const char * 963 dt_get_sysinfo(int cmd, char *buf, size_t len) 964 { 965 ssize_t rv = sysinfo(cmd, buf, len); 966 char *p = buf; 967 968 if (rv < 0 || rv > len) 969 (void) snprintf(buf, len, "%s", "Unknown"); 970 971 while ((p = strchr(p, '.')) != NULL) 972 *p++ = '_'; 973 974 return (buf); 975 } 976 #endif 977 978 static dtrace_hdl_t * 979 dt_vopen(int version, int flags, int *errp, 980 const dtrace_vector_t *vector, void *arg) 981 { 982 dtrace_hdl_t *dtp = NULL; 983 int dtfd = -1, ftfd = -1, fterr = 0; 984 dtrace_prog_t *pgp; 985 dt_module_t *dmp; 986 dt_provmod_t *provmod = NULL; 987 int i, err; 988 struct rlimit rl; 989 990 const dt_intrinsic_t *dinp; 991 const dt_typedef_t *dtyp; 992 const dt_ident_t *idp; 993 994 dtrace_typeinfo_t dtt; 995 ctf_funcinfo_t ctc; 996 ctf_arinfo_t ctr; 997 998 dt_fdlist_t df = { NULL, 0, 0 }; 999 1000 char isadef[32], utsdef[32]; 1001 char s1[64], s2[64]; 1002 1003 if (version <= 0) 1004 return (set_open_errno(dtp, errp, EINVAL)); 1005 1006 if (version > DTRACE_VERSION) 1007 return (set_open_errno(dtp, errp, EDT_VERSION)); 1008 1009 if (version < DTRACE_VERSION) { 1010 /* 1011 * Currently, increasing the library version number is used to 1012 * denote a binary incompatible change. That is, a consumer 1013 * of the library cannot run on a version of the library with 1014 * a higher DTRACE_VERSION number than the consumer compiled 1015 * against. Once the library API has been committed to, 1016 * backwards binary compatibility will be required; at that 1017 * time, this check should change to return EDT_OVERSION only 1018 * if the specified version number is less than the version 1019 * number at the time of interface commitment. 1020 */ 1021 return (set_open_errno(dtp, errp, EDT_OVERSION)); 1022 } 1023 1024 if (flags & ~DTRACE_O_MASK) 1025 return (set_open_errno(dtp, errp, EINVAL)); 1026 1027 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32)) 1028 return (set_open_errno(dtp, errp, EINVAL)); 1029 1030 if (vector == NULL && arg != NULL) 1031 return (set_open_errno(dtp, errp, EINVAL)); 1032 1033 if (elf_version(EV_CURRENT) == EV_NONE) 1034 return (set_open_errno(dtp, errp, EDT_ELFVERSION)); 1035 1036 if (vector != NULL || (flags & DTRACE_O_NODEV)) 1037 goto alloc; /* do not attempt to open dtrace device */ 1038 1039 /* 1040 * Before we get going, crank our limit on file descriptors up to the 1041 * hard limit. This is to allow for the fact that libproc keeps file 1042 * descriptors to objects open for the lifetime of the proc handle; 1043 * without raising our hard limit, we would have an acceptably small 1044 * bound on the number of processes that we could concurrently 1045 * instrument with the pid provider. 1046 */ 1047 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) { 1048 rl.rlim_cur = rl.rlim_max; 1049 (void) setrlimit(RLIMIT_NOFILE, &rl); 1050 } 1051 1052 /* 1053 * Get the device path of each of the providers. We hold them open 1054 * in the df.df_fds list until we open the DTrace driver itself, 1055 * allowing us to see all of the probes provided on this system. Once 1056 * we have the DTrace driver open, we can safely close all the providers 1057 * now that they have registered with the framework. 1058 */ 1059 dt_provmod_open(&provmod, &df); 1060 1061 dtfd = open("/dev/dtrace/dtrace", O_RDWR); 1062 err = errno; /* save errno from opening dtfd */ 1063 1064 #if defined(sun) 1065 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR); 1066 #else 1067 ftfd = open("/dev/dtrace/fasttrap", O_RDWR); 1068 #endif 1069 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */ 1070 1071 while (df.df_ents-- != 0) 1072 (void) close(df.df_fds[df.df_ents]); 1073 1074 free(df.df_fds); 1075 1076 /* 1077 * If we failed to open the dtrace device, fail dtrace_open(). 1078 * We convert some kernel errnos to custom libdtrace errnos to 1079 * improve the resulting message from the usual strerror(). 1080 */ 1081 if (dtfd == -1) { 1082 dt_provmod_destroy(&provmod); 1083 switch (err) { 1084 case ENOENT: 1085 err = EDT_NOENT; 1086 break; 1087 case EBUSY: 1088 err = EDT_BUSY; 1089 break; 1090 case EACCES: 1091 err = EDT_ACCESS; 1092 break; 1093 } 1094 return (set_open_errno(dtp, errp, err)); 1095 } 1096 1097 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC); 1098 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC); 1099 1100 alloc: 1101 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL) 1102 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1103 1104 bzero(dtp, sizeof (dtrace_hdl_t)); 1105 dtp->dt_oflags = flags; 1106 dtp->dt_prcmode = DT_PROC_STOP_PREINIT; 1107 dtp->dt_linkmode = DT_LINK_KERNEL; 1108 dtp->dt_linktype = DT_LTYP_ELF; 1109 dtp->dt_xlatemode = DT_XL_STATIC; 1110 dtp->dt_stdcmode = DT_STDC_XA; 1111 dtp->dt_version = version; 1112 dtp->dt_fd = dtfd; 1113 dtp->dt_ftfd = ftfd; 1114 dtp->dt_fterr = fterr; 1115 dtp->dt_cdefs_fd = -1; 1116 dtp->dt_ddefs_fd = -1; 1117 #if defined(sun) 1118 dtp->dt_stdout_fd = -1; 1119 #else 1120 dtp->dt_freopen_fp = NULL; 1121 #endif 1122 dtp->dt_modbuckets = _dtrace_strbuckets; 1123 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *)); 1124 dtp->dt_provbuckets = _dtrace_strbuckets; 1125 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *)); 1126 dt_proc_hash_create(dtp); 1127 dtp->dt_vmax = DT_VERS_LATEST; 1128 dtp->dt_cpp_path = strdup(_dtrace_defcpp); 1129 dtp->dt_cpp_argv = malloc(sizeof (char *)); 1130 dtp->dt_cpp_argc = 1; 1131 dtp->dt_cpp_args = 1; 1132 dtp->dt_ld_path = strdup(_dtrace_defld); 1133 dtp->dt_provmod = provmod; 1134 dtp->dt_vector = vector; 1135 dtp->dt_varg = arg; 1136 dt_dof_init(dtp); 1137 (void) uname(&dtp->dt_uts); 1138 1139 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL || 1140 dtp->dt_procs == NULL || dtp->dt_ld_path == NULL || 1141 dtp->dt_cpp_path == NULL || dtp->dt_cpp_argv == NULL) 1142 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1143 1144 for (i = 0; i < DTRACEOPT_MAX; i++) 1145 dtp->dt_options[i] = DTRACEOPT_UNSET; 1146 1147 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path); 1148 1149 #if defined(sun) 1150 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u", 1151 (uint_t)(sizeof (void *) * NBBY)); 1152 1153 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s", 1154 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)), 1155 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2))); 1156 1157 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL || 1158 dt_cpp_add_arg(dtp, "-D__unix") == NULL || 1159 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL || 1160 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL || 1161 dt_cpp_add_arg(dtp, isadef) == NULL || 1162 dt_cpp_add_arg(dtp, utsdef) == NULL) 1163 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1164 #endif 1165 1166 if (flags & DTRACE_O_NODEV) 1167 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf)); 1168 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0) 1169 return (set_open_errno(dtp, errp, errno)); 1170 1171 if (flags & DTRACE_O_LP64) 1172 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64; 1173 else if (flags & DTRACE_O_ILP32) 1174 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32; 1175 1176 #ifdef __sparc 1177 /* 1178 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h> 1179 * and __sparcv9 is defined if we are doing a 64-bit compile. 1180 */ 1181 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL) 1182 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1183 1184 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 && 1185 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL) 1186 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1187 #endif 1188 1189 #if defined(sun) 1190 #ifdef __x86 1191 /* 1192 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit 1193 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC, 1194 * they are defined exclusive of one another (see PSARC 2004/619). 1195 */ 1196 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 1197 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL) 1198 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1199 } else { 1200 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL) 1201 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1202 } 1203 #endif 1204 #else 1205 #if defined(__amd64__) || defined(__i386__) 1206 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 1207 if (dt_cpp_add_arg(dtp, "-m64") == NULL) 1208 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1209 } else { 1210 if (dt_cpp_add_arg(dtp, "-m32") == NULL) 1211 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1212 } 1213 #endif 1214 #endif 1215 1216 if (dtp->dt_conf.dtc_difversion < DIF_VERSION) 1217 return (set_open_errno(dtp, errp, EDT_DIFVERS)); 1218 1219 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) 1220 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32)); 1221 else 1222 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64)); 1223 1224 /* 1225 * On FreeBSD the kernel module name can't be hard-coded. The 1226 * 'kern.bootfile' sysctl value tells us exactly which file is being 1227 * used as the kernel. 1228 */ 1229 #if !defined(sun) 1230 { 1231 char bootfile[MAXPATHLEN]; 1232 char *p; 1233 int i; 1234 size_t len = sizeof(bootfile); 1235 1236 /* This call shouldn't fail, but use a default just in case. */ 1237 if (sysctlbyname("kern.bootfile", bootfile, &len, NULL, 0) != 0) 1238 strlcpy(bootfile, "kernel", sizeof(bootfile)); 1239 1240 if ((p = strrchr(bootfile, '/')) != NULL) 1241 p++; 1242 else 1243 p = bootfile; 1244 1245 /* 1246 * Format the global variables based on the kernel module name. 1247 */ 1248 snprintf(curthread_str, sizeof(curthread_str), "%s`struct thread *",p); 1249 snprintf(intmtx_str, sizeof(intmtx_str), "int(%s`struct mtx *)",p); 1250 snprintf(threadmtx_str, sizeof(threadmtx_str), "struct thread *(%s`struct mtx *)",p); 1251 snprintf(rwlock_str, sizeof(rwlock_str), "int(%s`struct rwlock *)",p); 1252 snprintf(sxlock_str, sizeof(sxlock_str), "int(%s`struct sxlock *)",p); 1253 } 1254 #endif 1255 1256 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX); 1257 dtp->dt_aggs = dt_idhash_create("aggregation", NULL, 1258 DTRACE_AGGVARIDNONE + 1, UINT_MAX); 1259 1260 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals, 1261 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1262 1263 dtp->dt_tls = dt_idhash_create("thread local", NULL, 1264 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1265 1266 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL || 1267 dtp->dt_globals == NULL || dtp->dt_tls == NULL) 1268 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1269 1270 /* 1271 * Populate the dt_macros identifier hash table by hand: we can't use 1272 * the dt_idhash_populate() mechanism because we're not yet compiling 1273 * and dtrace_update() needs to immediately reference these idents. 1274 */ 1275 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) { 1276 if (dt_idhash_insert(dtp->dt_macros, idp->di_name, 1277 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr, 1278 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw, 1279 idp->di_iarg, 0) == NULL) 1280 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1281 } 1282 1283 /* 1284 * Update the module list using /system/object and load the values for 1285 * the macro variable definitions according to the current process. 1286 */ 1287 dtrace_update(dtp); 1288 1289 /* 1290 * Select the intrinsics and typedefs we want based on the data model. 1291 * The intrinsics are under "C". The typedefs are added under "D". 1292 */ 1293 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) { 1294 dinp = _dtrace_intrinsics_32; 1295 dtyp = _dtrace_typedefs_32; 1296 } else { 1297 dinp = _dtrace_intrinsics_64; 1298 dtyp = _dtrace_typedefs_64; 1299 } 1300 1301 /* 1302 * Create a dynamic CTF container under the "C" scope for intrinsic 1303 * types and types defined in ANSI-C header files that are included. 1304 */ 1305 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL) 1306 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1307 1308 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1309 return (set_open_errno(dtp, errp, EDT_CTF)); 1310 1311 dt_dprintf("created CTF container for %s (%p)\n", 1312 dmp->dm_name, (void *)dmp->dm_ctfp); 1313 1314 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1315 ctf_setspecific(dmp->dm_ctfp, dmp); 1316 1317 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1318 dmp->dm_modid = -1; /* no module ID */ 1319 1320 /* 1321 * Fill the dynamic "C" CTF container with all of the intrinsic 1322 * integer and floating-point types appropriate for this data model. 1323 */ 1324 for (; dinp->din_name != NULL; dinp++) { 1325 if (dinp->din_kind == CTF_K_INTEGER) { 1326 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT, 1327 dinp->din_name, &dinp->din_data); 1328 } else { 1329 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT, 1330 dinp->din_name, &dinp->din_data); 1331 } 1332 1333 if (err == CTF_ERR) { 1334 dt_dprintf("failed to add %s to C container: %s\n", 1335 dinp->din_name, ctf_errmsg( 1336 ctf_errno(dmp->dm_ctfp))); 1337 return (set_open_errno(dtp, errp, EDT_CTF)); 1338 } 1339 } 1340 1341 if (ctf_update(dmp->dm_ctfp) != 0) { 1342 dt_dprintf("failed to update C container: %s\n", 1343 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1344 return (set_open_errno(dtp, errp, EDT_CTF)); 1345 } 1346 1347 /* 1348 * Add intrinsic pointer types that are needed to initialize printf 1349 * format dictionary types (see table in dt_printf.c). 1350 */ 1351 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1352 ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1353 1354 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1355 ctf_lookup_by_name(dmp->dm_ctfp, "char")); 1356 1357 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1358 ctf_lookup_by_name(dmp->dm_ctfp, "int")); 1359 1360 if (ctf_update(dmp->dm_ctfp) != 0) { 1361 dt_dprintf("failed to update C container: %s\n", 1362 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1363 return (set_open_errno(dtp, errp, EDT_CTF)); 1364 } 1365 1366 /* 1367 * Create a dynamic CTF container under the "D" scope for types that 1368 * are defined by the D program itself or on-the-fly by the D compiler. 1369 * The "D" CTF container is a child of the "C" CTF container. 1370 */ 1371 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL) 1372 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1373 1374 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1375 return (set_open_errno(dtp, errp, EDT_CTF)); 1376 1377 dt_dprintf("created CTF container for %s (%p)\n", 1378 dmp->dm_name, (void *)dmp->dm_ctfp); 1379 1380 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1381 ctf_setspecific(dmp->dm_ctfp, dmp); 1382 1383 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1384 dmp->dm_modid = -1; /* no module ID */ 1385 1386 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) { 1387 dt_dprintf("failed to import D parent container: %s\n", 1388 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1389 return (set_open_errno(dtp, errp, EDT_CTF)); 1390 } 1391 1392 /* 1393 * Fill the dynamic "D" CTF container with all of the built-in typedefs 1394 * that we need to use for our D variable and function definitions. 1395 * This ensures that basic inttypes.h names are always available to us. 1396 */ 1397 for (; dtyp->dty_src != NULL; dtyp++) { 1398 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1399 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp, 1400 dtyp->dty_src)) == CTF_ERR) { 1401 dt_dprintf("failed to add typedef %s %s to D " 1402 "container: %s", dtyp->dty_src, dtyp->dty_dst, 1403 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1404 return (set_open_errno(dtp, errp, EDT_CTF)); 1405 } 1406 } 1407 1408 /* 1409 * Insert a CTF ID corresponding to a pointer to a type of kind 1410 * CTF_K_FUNCTION we can use in the compiler for function pointers. 1411 * CTF treats all function pointers as "int (*)()" so we only need one. 1412 */ 1413 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int"); 1414 ctc.ctc_argc = 0; 1415 ctc.ctc_flags = 0; 1416 1417 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp, 1418 CTF_ADD_ROOT, &ctc, NULL); 1419 1420 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp, 1421 CTF_ADD_ROOT, dtp->dt_type_func); 1422 1423 /* 1424 * We also insert CTF definitions for the special D intrinsic types 1425 * string and <DYN> into the D container. The string type is added 1426 * as a typedef of char[n]. The <DYN> type is an alias for void. 1427 * We compare types to these special CTF ids throughout the compiler. 1428 */ 1429 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char"); 1430 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long"); 1431 ctr.ctr_nelems = _dtrace_strsize; 1432 1433 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1434 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr)); 1435 1436 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1437 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1438 1439 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1440 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1441 1442 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1443 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1444 1445 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1446 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1447 1448 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR || 1449 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR || 1450 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR || 1451 dtp->dt_type_usymaddr == CTF_ERR) { 1452 dt_dprintf("failed to add intrinsic to D container: %s\n", 1453 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1454 return (set_open_errno(dtp, errp, EDT_CTF)); 1455 } 1456 1457 if (ctf_update(dmp->dm_ctfp) != 0) { 1458 dt_dprintf("failed update D container: %s\n", 1459 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1460 return (set_open_errno(dtp, errp, EDT_CTF)); 1461 } 1462 1463 /* 1464 * Initialize the integer description table used to convert integer 1465 * constants to the appropriate types. Refer to the comments above 1466 * dt_node_int() for a complete description of how this table is used. 1467 */ 1468 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) { 1469 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY, 1470 dtp->dt_ints[i].did_name, &dtt) != 0) { 1471 dt_dprintf("failed to lookup integer type %s: %s\n", 1472 dtp->dt_ints[i].did_name, 1473 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1474 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1475 } 1476 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp; 1477 dtp->dt_ints[i].did_type = dtt.dtt_type; 1478 } 1479 1480 /* 1481 * Now that we've created the "C" and "D" containers, move them to the 1482 * start of the module list so that these types and symbols are found 1483 * first (for stability) when iterating through the module list. 1484 */ 1485 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs); 1486 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs); 1487 1488 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs); 1489 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs); 1490 1491 if (dt_pfdict_create(dtp) == -1) 1492 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1493 1494 /* 1495 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default 1496 * because without /dev/dtrace open, we will not be able to load the 1497 * names and attributes of any providers or probes from the kernel. 1498 */ 1499 if (flags & DTRACE_O_NODEV) 1500 dtp->dt_cflags |= DTRACE_C_ZDEFS; 1501 1502 /* 1503 * Load hard-wired inlines into the definition cache by calling the 1504 * compiler on the raw definition string defined above. 1505 */ 1506 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire, 1507 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) { 1508 dt_dprintf("failed to load hard-wired definitions: %s\n", 1509 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1510 return (set_open_errno(dtp, errp, EDT_HARDWIRE)); 1511 } 1512 1513 dt_program_destroy(dtp, pgp); 1514 1515 /* 1516 * Set up the default DTrace library path. Once set, the next call to 1517 * dt_compile() will compile all the libraries. We intentionally defer 1518 * library processing to improve overhead for clients that don't ever 1519 * compile, and to provide better error reporting (because the full 1520 * reporting of compiler errors requires dtrace_open() to succeed). 1521 */ 1522 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0) 1523 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1524 1525 return (dtp); 1526 } 1527 1528 dtrace_hdl_t * 1529 dtrace_open(int version, int flags, int *errp) 1530 { 1531 return (dt_vopen(version, flags, errp, NULL, NULL)); 1532 } 1533 1534 dtrace_hdl_t * 1535 dtrace_vopen(int version, int flags, int *errp, 1536 const dtrace_vector_t *vector, void *arg) 1537 { 1538 return (dt_vopen(version, flags, errp, vector, arg)); 1539 } 1540 1541 void 1542 dtrace_close(dtrace_hdl_t *dtp) 1543 { 1544 dt_ident_t *idp, *ndp; 1545 dt_module_t *dmp; 1546 dt_provider_t *pvp; 1547 dtrace_prog_t *pgp; 1548 dt_xlator_t *dxp; 1549 dt_dirpath_t *dirp; 1550 int i; 1551 1552 if (dtp->dt_procs != NULL) 1553 dt_proc_hash_destroy(dtp); 1554 1555 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL) 1556 dt_program_destroy(dtp, pgp); 1557 1558 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL) 1559 dt_xlator_destroy(dtp, dxp); 1560 1561 dt_free(dtp, dtp->dt_xlatormap); 1562 1563 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) { 1564 ndp = idp->di_next; 1565 dt_ident_destroy(idp); 1566 } 1567 1568 if (dtp->dt_macros != NULL) 1569 dt_idhash_destroy(dtp->dt_macros); 1570 if (dtp->dt_aggs != NULL) 1571 dt_idhash_destroy(dtp->dt_aggs); 1572 if (dtp->dt_globals != NULL) 1573 dt_idhash_destroy(dtp->dt_globals); 1574 if (dtp->dt_tls != NULL) 1575 dt_idhash_destroy(dtp->dt_tls); 1576 1577 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL) 1578 dt_module_destroy(dtp, dmp); 1579 1580 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL) 1581 dt_provider_destroy(dtp, pvp); 1582 1583 if (dtp->dt_fd != -1) 1584 (void) close(dtp->dt_fd); 1585 if (dtp->dt_ftfd != -1) 1586 (void) close(dtp->dt_ftfd); 1587 if (dtp->dt_cdefs_fd != -1) 1588 (void) close(dtp->dt_cdefs_fd); 1589 if (dtp->dt_ddefs_fd != -1) 1590 (void) close(dtp->dt_ddefs_fd); 1591 #if defined(sun) 1592 if (dtp->dt_stdout_fd != -1) 1593 (void) close(dtp->dt_stdout_fd); 1594 #else 1595 if (dtp->dt_freopen_fp != NULL) 1596 (void) fclose(dtp->dt_freopen_fp); 1597 #endif 1598 1599 dt_epid_destroy(dtp); 1600 dt_aggid_destroy(dtp); 1601 dt_format_destroy(dtp); 1602 dt_buffered_destroy(dtp); 1603 dt_aggregate_destroy(dtp); 1604 free(dtp->dt_buf.dtbd_data); 1605 dt_pfdict_destroy(dtp); 1606 dt_provmod_destroy(&dtp->dt_provmod); 1607 dt_dof_fini(dtp); 1608 1609 for (i = 1; i < dtp->dt_cpp_argc; i++) 1610 free(dtp->dt_cpp_argv[i]); 1611 1612 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) { 1613 dt_list_delete(&dtp->dt_lib_path, dirp); 1614 free(dirp->dir_path); 1615 free(dirp); 1616 } 1617 1618 free(dtp->dt_cpp_argv); 1619 free(dtp->dt_cpp_path); 1620 free(dtp->dt_ld_path); 1621 1622 free(dtp->dt_mods); 1623 free(dtp->dt_provs); 1624 free(dtp); 1625 } 1626 1627 int 1628 dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods) 1629 { 1630 dt_provmod_t *prov; 1631 int i = 0; 1632 1633 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) { 1634 if (i < nmods) 1635 mods[i] = prov->dp_name; 1636 } 1637 1638 return (i); 1639 } 1640 1641 int 1642 dtrace_ctlfd(dtrace_hdl_t *dtp) 1643 { 1644 return (dtp->dt_fd); 1645 } 1646