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