1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright (c) 2011, Joyent, Inc. All rights reserved. 25 */ 26 27 #include <sys/types.h> 28 #if defined(sun) 29 #include <sys/modctl.h> 30 #include <sys/systeminfo.h> 31 #endif 32 #include <sys/resource.h> 33 34 #include <libelf.h> 35 #include <strings.h> 36 #if defined(sun) 37 #include <alloca.h> 38 #endif 39 #include <limits.h> 40 #include <unistd.h> 41 #include <stdlib.h> 42 #include <stdio.h> 43 #include <fcntl.h> 44 #include <errno.h> 45 #include <assert.h> 46 47 #define _POSIX_PTHREAD_SEMANTICS 48 #include <dirent.h> 49 #undef _POSIX_PTHREAD_SEMANTICS 50 51 #include <dt_impl.h> 52 #include <dt_program.h> 53 #include <dt_module.h> 54 #include <dt_printf.h> 55 #include <dt_string.h> 56 #include <dt_provider.h> 57 #if !defined(sun) 58 #include <sys/sysctl.h> 59 #include <string.h> 60 #endif 61 #if defined(__i386__) 62 #include <ieeefp.h> 63 #endif 64 65 /* 66 * Stability and versioning definitions. These #defines are used in the tables 67 * of identifiers below to fill in the attribute and version fields associated 68 * with each identifier. The DT_ATTR_* macros are a convenience to permit more 69 * concise declarations of common attributes such as Stable/Stable/Common. The 70 * DT_VERS_* macros declare the encoded integer values of all versions used so 71 * far. DT_VERS_LATEST must correspond to the latest version value among all 72 * versions exported by the D compiler. DT_VERS_STRING must be an ASCII string 73 * that contains DT_VERS_LATEST within it along with any suffixes (e.g. Beta). 74 * You must update DT_VERS_LATEST and DT_VERS_STRING when adding a new version, 75 * and then add the new version to the _dtrace_versions[] array declared below. 76 * Refer to the Solaris Dynamic Tracing Guide Stability and Versioning chapters 77 * respectively for an explanation of these DTrace features and their values. 78 * 79 * NOTE: Although the DTrace versioning scheme supports the labeling and 80 * introduction of incompatible changes (e.g. dropping an interface in a 81 * major release), the libdtrace code does not currently support this. 82 * All versions are assumed to strictly inherit from one another. If 83 * we ever need to provide divergent interfaces, this will need work. 84 */ 85 #define DT_ATTR_STABCMN { DTRACE_STABILITY_STABLE, \ 86 DTRACE_STABILITY_STABLE, DTRACE_CLASS_COMMON } 87 88 #define DT_ATTR_EVOLCMN { DTRACE_STABILITY_EVOLVING, \ 89 DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_COMMON \ 90 } 91 92 /* 93 * The version number should be increased for every customer visible release 94 * of Solaris. The major number should be incremented when a fundamental 95 * change has been made that would affect all consumers, and would reflect 96 * sweeping changes to DTrace or the D language. The minor number should be 97 * incremented when a change is introduced that could break scripts that had 98 * previously worked; for example, adding a new built-in variable could break 99 * a script which was already using that identifier. The micro number should 100 * be changed when introducing functionality changes or major bug fixes that 101 * do not affect backward compatibility -- this is merely to make capabilities 102 * easily determined from the version number. Minor bugs do not require any 103 * modification to the version number. 104 */ 105 #define DT_VERS_1_0 DT_VERSION_NUMBER(1, 0, 0) 106 #define DT_VERS_1_1 DT_VERSION_NUMBER(1, 1, 0) 107 #define DT_VERS_1_2 DT_VERSION_NUMBER(1, 2, 0) 108 #define DT_VERS_1_2_1 DT_VERSION_NUMBER(1, 2, 1) 109 #define DT_VERS_1_2_2 DT_VERSION_NUMBER(1, 2, 2) 110 #define DT_VERS_1_3 DT_VERSION_NUMBER(1, 3, 0) 111 #define DT_VERS_1_4 DT_VERSION_NUMBER(1, 4, 0) 112 #define DT_VERS_1_4_1 DT_VERSION_NUMBER(1, 4, 1) 113 #define DT_VERS_1_5 DT_VERSION_NUMBER(1, 5, 0) 114 #define DT_VERS_1_6 DT_VERSION_NUMBER(1, 6, 0) 115 #define DT_VERS_1_6_1 DT_VERSION_NUMBER(1, 6, 1) 116 #define DT_VERS_1_6_2 DT_VERSION_NUMBER(1, 6, 2) 117 #define DT_VERS_1_6_3 DT_VERSION_NUMBER(1, 6, 3) 118 #define DT_VERS_1_7 DT_VERSION_NUMBER(1, 7, 0) 119 #define DT_VERS_LATEST DT_VERS_1_7 120 #define DT_VERS_STRING "Sun D 1.7" 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 DT_VERS_1_6_3, /* D API 1.6.3 */ 136 DT_VERS_1_7, /* D API 1.7 */ 137 0 138 }; 139 140 /* 141 * Global variables that are formatted on FreeBSD based on the kernel file name. 142 */ 143 #if !defined(sun) 144 static char curthread_str[MAXPATHLEN]; 145 static char intmtx_str[MAXPATHLEN]; 146 static char threadmtx_str[MAXPATHLEN]; 147 static char rwlock_str[MAXPATHLEN]; 148 static char sxlock_str[MAXPATHLEN]; 149 #endif 150 151 /* 152 * Table of global identifiers. This is used to populate the global identifier 153 * hash when a new dtrace client open occurs. For more info see dt_ident.h. 154 * The global identifiers that represent functions use the dt_idops_func ops 155 * and specify the private data pointer as a prototype string which is parsed 156 * when the identifier is first encountered. These prototypes look like ANSI 157 * C function prototypes except that the special symbol "@" can be used as a 158 * wildcard to represent a single parameter of any type (i.e. any dt_node_t). 159 * The standard "..." notation can also be used to represent varargs. An empty 160 * parameter list is taken to mean void (that is, no arguments are permitted). 161 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional 162 * argument. 163 */ 164 static const dt_ident_t _dtrace_globals[] = { 165 { "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0, 166 &dt_idops_func, "void *(size_t)" }, 167 { "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0, 168 &dt_idops_type, "int64_t" }, 169 { "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0, 170 &dt_idops_type, "int64_t" }, 171 { "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0, 172 &dt_idops_type, "int64_t" }, 173 { "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0, 174 &dt_idops_type, "int64_t" }, 175 { "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0, 176 &dt_idops_type, "int64_t" }, 177 { "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0, 178 &dt_idops_type, "int64_t" }, 179 { "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0, 180 &dt_idops_type, "int64_t" }, 181 { "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0, 182 &dt_idops_type, "int64_t" }, 183 { "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0, 184 &dt_idops_type, "int64_t" }, 185 { "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0, 186 &dt_idops_type, "int64_t" }, 187 { "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0, 188 &dt_idops_args, NULL }, 189 { "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0, 190 &dt_idops_func, "void(@)" }, 191 { "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0, 192 &dt_idops_func, "string(const char *)" }, 193 { "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0, 194 &dt_idops_func, "void(void *, void *, size_t)" }, 195 { "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT, 196 DT_ATTR_STABCMN, DT_VERS_1_0, 197 &dt_idops_func, "void()" }, 198 { "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0, 199 &dt_idops_type, "uintptr_t" }, 200 { "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0, 201 &dt_idops_func, "void(int)" }, 202 { "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN, 203 DT_VERS_1_0, &dt_idops_func, "string(const char *)" }, 204 { "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0, 205 &dt_idops_func, "void(...)" }, 206 { "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0, 207 &dt_idops_func, "void(int)" }, 208 { "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0, 209 &dt_idops_func, "void *(uintptr_t, size_t)" }, 210 { "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR, 211 DT_ATTR_STABCMN, DT_VERS_1_0, 212 &dt_idops_func, "string(uintptr_t, [size_t])" }, 213 { "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN, 214 DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" }, 215 { "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0, 216 &dt_idops_func, "void(void *, uintptr_t, size_t)" }, 217 { "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR, 218 DT_ATTR_STABCMN, DT_VERS_1_0, 219 &dt_idops_func, "void(char *, uintptr_t, size_t)" }, 220 { "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0, 221 &dt_idops_func, "void()" }, 222 { "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD, 223 { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE, 224 DTRACE_CLASS_COMMON }, DT_VERS_1_0, 225 #if defined(sun) 226 &dt_idops_type, "genunix`kthread_t *" }, 227 #else 228 &dt_idops_type, curthread_str }, 229 #endif 230 { "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME, 231 DT_ATTR_EVOLCMN, DT_VERS_1_0, 232 &dt_idops_func, "string(void *, int64_t)" }, 233 { "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN, 234 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 235 { "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0, 236 &dt_idops_func, "string(const char *)" }, 237 { "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0, 238 &dt_idops_func, "void(int)" }, 239 { "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0, 240 &dt_idops_type, "uint_t" }, 241 { "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0, 242 &dt_idops_type, "int" }, 243 { "execargs", DT_IDENT_SCALAR, 0, DIF_VAR_EXECARGS, 244 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 245 { "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME, 246 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 247 { "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0, 248 &dt_idops_func, "void(int)" }, 249 { "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN, 250 DT_VERS_1_1, &dt_idops_func, "void(@, ...)" }, 251 { "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN, 252 DT_VERS_1_0, &dt_idops_func, "void()" }, 253 { "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 254 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 255 { "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR, 256 DT_ATTR_EVOLCMN, DT_VERS_1_0, 257 &dt_idops_func, "genunix`major_t(genunix`dev_t)" }, 258 { "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR, 259 DT_ATTR_EVOLCMN, DT_VERS_1_0, 260 &dt_idops_func, "genunix`minor_t(genunix`dev_t)" }, 261 { "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 262 &dt_idops_func, "uint32_t(uint32_t)" }, 263 { "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 264 &dt_idops_func, "uint64_t(uint64_t)" }, 265 { "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 266 &dt_idops_func, "uint16_t(uint16_t)" }, 267 { "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0, 268 &dt_idops_type, "gid_t" }, 269 { "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0, 270 &dt_idops_type, "uint_t" }, 271 { "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 272 &dt_idops_func, "int(const char *, const char *, [int])" }, 273 { "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN, 274 #if defined(sun) 275 DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" }, 276 #else 277 DT_VERS_1_5, &dt_idops_func, "string(in_addr_t *)" }, 278 #endif 279 { "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN, 280 #if defined(sun) 281 DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" }, 282 #else 283 DT_VERS_1_5, &dt_idops_func, "string(struct in6_addr *)" }, 284 #endif 285 { "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN, 286 DT_VERS_1_5, &dt_idops_func, "string(int, void *)" }, 287 { "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0, 288 &dt_idops_type, "uint_t" }, 289 { "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 290 &dt_idops_func, "stack(...)" }, 291 { "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0, 292 &dt_idops_func, "string(int64_t)" }, 293 { "llquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LLQUANTIZE, DT_ATTR_STABCMN, 294 DT_VERS_1_7, &dt_idops_func, 295 "void(@, int32_t, int32_t, int32_t, int32_t, ...)" }, 296 { "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE, 297 DT_ATTR_STABCMN, DT_VERS_1_0, 298 &dt_idops_func, "void(@, int32_t, int32_t, ...)" }, 299 { "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0, 300 &dt_idops_func, "void(@)" }, 301 { "memref", DT_IDENT_FUNC, 0, DIF_SUBR_MEMREF, DT_ATTR_STABCMN, DT_VERS_1_1, 302 &dt_idops_func, "uintptr_t *(void *, size_t)" }, 303 { "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0, 304 &dt_idops_func, "void(@)" }, 305 { "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN, 306 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 307 { "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE, 308 DT_ATTR_STABCMN, DT_VERS_1_0, 309 &dt_idops_func, "size_t(mblk_t *)" }, 310 { "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE, 311 DT_ATTR_STABCMN, DT_VERS_1_0, 312 &dt_idops_func, "size_t(mblk_t *)" }, 313 #if defined(sun) 314 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 315 DT_ATTR_EVOLCMN, DT_VERS_1_0, 316 &dt_idops_func, "int(genunix`kmutex_t *)" }, 317 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 318 DT_ATTR_EVOLCMN, DT_VERS_1_0, 319 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" }, 320 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 321 DT_ATTR_EVOLCMN, DT_VERS_1_0, 322 &dt_idops_func, "int(genunix`kmutex_t *)" }, 323 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 324 DT_ATTR_EVOLCMN, DT_VERS_1_0, 325 &dt_idops_func, "int(genunix`kmutex_t *)" }, 326 #else 327 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 328 DT_ATTR_EVOLCMN, DT_VERS_1_0, 329 &dt_idops_func, intmtx_str }, 330 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 331 DT_ATTR_EVOLCMN, DT_VERS_1_0, 332 &dt_idops_func, threadmtx_str }, 333 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 334 DT_ATTR_EVOLCMN, DT_VERS_1_0, 335 &dt_idops_func, intmtx_str }, 336 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 337 DT_ATTR_EVOLCMN, DT_VERS_1_0, 338 &dt_idops_func, intmtx_str }, 339 #endif 340 { "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 341 &dt_idops_func, "uint32_t(uint32_t)" }, 342 { "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 343 &dt_idops_func, "uint64_t(uint64_t)" }, 344 { "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 345 &dt_idops_func, "uint16_t(uint16_t)" }, 346 { "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN, 347 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 348 { "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0, 349 &dt_idops_func, "void()" }, 350 { "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0, 351 &dt_idops_type, "pid_t" }, 352 { "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0, 353 &dt_idops_type, "pid_t" }, 354 { "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0, 355 &dt_idops_func, "void(@, ...)" }, 356 { "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0, 357 &dt_idops_func, "void(@, ...)" }, 358 { "printm", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTM, DT_ATTR_STABCMN, DT_VERS_1_0, 359 &dt_idops_func, "void(size_t, uintptr_t *)" }, 360 { "printt", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTT, DT_ATTR_STABCMN, DT_VERS_1_0, 361 &dt_idops_func, "void(size_t, uintptr_t *)" }, 362 { "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC, 363 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 364 { "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD, 365 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 366 { "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME, 367 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 368 { "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV, 369 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 370 { "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF, 371 DT_ATTR_STABCMN, DT_VERS_1_0, 372 &dt_idops_func, "int(pid_t)" }, 373 { "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE, 374 DT_ATTR_STABCMN, DT_VERS_1_0, 375 &dt_idops_func, "void(@, ...)" }, 376 { "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0, 377 &dt_idops_func, "void(int)" }, 378 { "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0, 379 &dt_idops_func, "int()" }, 380 { "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 381 &dt_idops_func, "int(const char *, const char *, [int])" }, 382 #if defined(sun) 383 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 384 DT_ATTR_EVOLCMN, DT_VERS_1_0, 385 &dt_idops_func, "int(genunix`krwlock_t *)" }, 386 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 387 DT_ATTR_EVOLCMN, DT_VERS_1_0, 388 &dt_idops_func, "int(genunix`krwlock_t *)" }, 389 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 390 DT_ATTR_EVOLCMN, DT_VERS_1_0, 391 &dt_idops_func, "int(genunix`krwlock_t *)" }, 392 #else 393 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 394 DT_ATTR_EVOLCMN, DT_VERS_1_0, 395 &dt_idops_func, rwlock_str }, 396 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 397 DT_ATTR_EVOLCMN, DT_VERS_1_0, 398 &dt_idops_func, rwlock_str }, 399 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 400 DT_ATTR_EVOLCMN, DT_VERS_1_0, 401 &dt_idops_func, rwlock_str }, 402 #endif 403 { "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 404 &dt_idops_type, "void" }, 405 { "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN, 406 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" }, 407 { "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE, 408 DT_ATTR_STABCMN, DT_VERS_1_0, 409 &dt_idops_func, "void(int)" }, 410 { "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION, 411 DT_ATTR_STABCMN, DT_VERS_1_0, 412 &dt_idops_func, "int()" }, 413 { "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0, 414 &dt_idops_func, "stack(...)" }, 415 { "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH, 416 DT_ATTR_STABCMN, DT_VERS_1_0, 417 &dt_idops_type, "uint32_t" }, 418 { "stddev", DT_IDENT_AGGFUNC, 0, DTRACEAGG_STDDEV, DT_ATTR_STABCMN, 419 DT_VERS_1_6, &dt_idops_func, "void(@)" }, 420 { "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0, 421 &dt_idops_func, "void()" }, 422 { "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 423 &dt_idops_func, "string(const char *, char)" }, 424 { "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0, 425 &dt_idops_func, "size_t(const char *)" }, 426 { "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0, 427 &dt_idops_func, "string(const char *, const char *)" }, 428 { "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 429 &dt_idops_func, "string(const char *, char)" }, 430 { "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 431 &dt_idops_func, "string(const char *, const char *)" }, 432 { "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1, 433 &dt_idops_func, "string(const char *, const char *)" }, 434 { "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 435 &dt_idops_func, "string(const char *, int, [int])" }, 436 { "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0, 437 &dt_idops_func, "void(@)" }, 438 #if !defined(sun) 439 { "sx_isexclusive", DT_IDENT_FUNC, 0, DIF_SUBR_SX_ISEXCLUSIVE, 440 DT_ATTR_EVOLCMN, DT_VERS_1_0, 441 &dt_idops_func, sxlock_str }, 442 { "sx_shared_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_SHARED_HELD, 443 DT_ATTR_EVOLCMN, DT_VERS_1_0, 444 &dt_idops_func, sxlock_str }, 445 { "sx_exclusive_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_EXCLUSIVE_HELD, 446 DT_ATTR_EVOLCMN, DT_VERS_1_0, 447 &dt_idops_func, sxlock_str }, 448 #endif 449 { "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 450 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 451 { "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0, 452 &dt_idops_func, "void(@, ...)" }, 453 { "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 454 &dt_idops_type, "void" }, 455 { "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0, 456 &dt_idops_type, "id_t" }, 457 { "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP, 458 DT_ATTR_STABCMN, DT_VERS_1_0, 459 &dt_idops_type, "uint64_t" }, 460 { "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0, 461 &dt_idops_func, "void(@)" }, 462 { "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM, 463 DT_ATTR_STABCMN, DT_VERS_1_0, 464 &dt_idops_func, "void(@, size_t)" }, 465 { "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN, 466 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 467 { "typeref", DT_IDENT_FUNC, 0, DIF_SUBR_TYPEREF, DT_ATTR_STABCMN, DT_VERS_1_1, 468 &dt_idops_func, "uintptr_t *(void *, size_t, string, size_t)" }, 469 #if defined(sun) 470 { "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN, 471 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 472 #endif 473 { "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN, 474 DT_VERS_1_2, &dt_idops_type, "uint64_t" }, 475 #if defined(sun) 476 { "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 477 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 478 #endif 479 { "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0, 480 &dt_idops_type, "uid_t" }, 481 #if defined(sun) 482 { "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN, 483 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 484 #endif 485 { "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0, 486 &dt_idops_regs, NULL }, 487 { "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 488 &dt_idops_func, "stack(...)" }, 489 { "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH, 490 DT_ATTR_STABCMN, DT_VERS_1_2, 491 &dt_idops_type, "uint32_t" }, 492 #if defined(sun) 493 { "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 494 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 495 #endif 496 { "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP, 497 DT_ATTR_STABCMN, DT_VERS_1_0, 498 &dt_idops_type, "uint64_t" }, 499 { "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP, 500 DT_ATTR_STABCMN, DT_VERS_1_0, 501 &dt_idops_type, "int64_t" }, 502 #if defined(sun) 503 { "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME, 504 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 505 #endif 506 507 #if !defined(sun) 508 { "cpu", DT_IDENT_SCALAR, 0, DIF_VAR_CPU, 509 DT_ATTR_STABCMN, DT_VERS_1_6_3, &dt_idops_type, "int" }, 510 #endif 511 512 { NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL } 513 }; 514 515 /* 516 * Tables of ILP32 intrinsic integer and floating-point type templates to use 517 * to populate the dynamic "C" CTF type container. 518 */ 519 static const dt_intrinsic_t _dtrace_intrinsics_32[] = { 520 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 521 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 522 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 523 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 524 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 525 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 526 { "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 527 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 528 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 529 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 530 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 531 { "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 532 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 533 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 534 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 535 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 536 { "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER }, 537 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 538 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 539 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 540 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 541 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 542 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 543 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 544 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 545 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 546 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 547 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 548 { NULL, { 0, 0, 0 }, 0 } 549 }; 550 551 /* 552 * Tables of LP64 intrinsic integer and floating-point type templates to use 553 * to populate the dynamic "C" CTF type container. 554 */ 555 static const dt_intrinsic_t _dtrace_intrinsics_64[] = { 556 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 557 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 558 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 559 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 560 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 561 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 562 { "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 563 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 564 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 565 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 566 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 567 { "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 568 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 569 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 570 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 571 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 572 { "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER }, 573 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 574 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 575 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 576 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 577 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 578 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 579 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 580 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 581 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 582 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 583 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 584 { NULL, { 0, 0, 0 }, 0 } 585 }; 586 587 /* 588 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container. 589 * These aliases ensure that D definitions can use typical <sys/types.h> names. 590 */ 591 static const dt_typedef_t _dtrace_typedefs_32[] = { 592 { "char", "int8_t" }, 593 { "short", "int16_t" }, 594 { "int", "int32_t" }, 595 { "long long", "int64_t" }, 596 { "int", "intptr_t" }, 597 { "int", "ssize_t" }, 598 { "unsigned char", "uint8_t" }, 599 { "unsigned short", "uint16_t" }, 600 { "unsigned", "uint32_t" }, 601 { "unsigned long long", "uint64_t" }, 602 { "unsigned char", "uchar_t" }, 603 { "unsigned short", "ushort_t" }, 604 { "unsigned", "uint_t" }, 605 { "unsigned long", "ulong_t" }, 606 { "unsigned long long", "u_longlong_t" }, 607 { "int", "ptrdiff_t" }, 608 { "unsigned", "uintptr_t" }, 609 { "unsigned", "size_t" }, 610 { "long", "id_t" }, 611 { "long", "pid_t" }, 612 { NULL, NULL } 613 }; 614 615 /* 616 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container. 617 * These aliases ensure that D definitions can use typical <sys/types.h> names. 618 */ 619 static const dt_typedef_t _dtrace_typedefs_64[] = { 620 { "char", "int8_t" }, 621 { "short", "int16_t" }, 622 { "int", "int32_t" }, 623 { "long", "int64_t" }, 624 { "long", "intptr_t" }, 625 { "long", "ssize_t" }, 626 { "unsigned char", "uint8_t" }, 627 { "unsigned short", "uint16_t" }, 628 { "unsigned", "uint32_t" }, 629 { "unsigned long", "uint64_t" }, 630 { "unsigned char", "uchar_t" }, 631 { "unsigned short", "ushort_t" }, 632 { "unsigned", "uint_t" }, 633 { "unsigned long", "ulong_t" }, 634 { "unsigned long long", "u_longlong_t" }, 635 { "long", "ptrdiff_t" }, 636 { "unsigned long", "uintptr_t" }, 637 { "unsigned long", "size_t" }, 638 { "int", "id_t" }, 639 { "int", "pid_t" }, 640 { NULL, NULL } 641 }; 642 643 /* 644 * Tables of ILP32 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_32[] = { 648 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 649 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 650 { "long", NULL, CTF_ERR, 0x7fffffffULL }, 651 { "unsigned long", NULL, CTF_ERR, 0xffffffffULL }, 652 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 653 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 654 }; 655 656 /* 657 * Tables of LP64 integer type templates used to populate the dtp->dt_ints[] 658 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 659 */ 660 static const dt_intdesc_t _dtrace_ints_64[] = { 661 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 662 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 663 { "long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 664 { "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL }, 665 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 666 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 667 }; 668 669 /* 670 * Table of macro variable templates used to populate the macro identifier hash 671 * when a new dtrace client open occurs. Values are set by dtrace_update(). 672 */ 673 static const dt_ident_t _dtrace_macros[] = { 674 { "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 675 { "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 676 { "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 677 { "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 678 { "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 679 { "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 680 { "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 681 { "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 682 { "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 683 { "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 684 { "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 685 { NULL, 0, 0, 0, { 0, 0, 0 }, 0 } 686 }; 687 688 /* 689 * Hard-wired definition string to be compiled and cached every time a new 690 * DTrace library handle is initialized. This string should only be used to 691 * contain definitions that should be present regardless of DTRACE_O_NOLIBS. 692 */ 693 static const char _dtrace_hardwire[] = "\ 694 inline long NULL = 0; \n\ 695 #pragma D binding \"1.0\" NULL\n\ 696 "; 697 698 /* 699 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV. 700 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel. 701 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are 702 * relying on the fact that when running dtrace(1M), isaexec will invoke the 703 * binary with the same bitness as the kernel, which is what we want by default 704 * when generating our DIF. The user can override the choice using oflags. 705 */ 706 static const dtrace_conf_t _dtrace_conf = { 707 DIF_VERSION, /* dtc_difversion */ 708 DIF_DIR_NREGS, /* dtc_difintregs */ 709 DIF_DTR_NREGS, /* dtc_diftupregs */ 710 CTF_MODEL_NATIVE /* dtc_ctfmodel */ 711 }; 712 713 const dtrace_attribute_t _dtrace_maxattr = { 714 DTRACE_STABILITY_MAX, 715 DTRACE_STABILITY_MAX, 716 DTRACE_CLASS_MAX 717 }; 718 719 const dtrace_attribute_t _dtrace_defattr = { 720 DTRACE_STABILITY_STABLE, 721 DTRACE_STABILITY_STABLE, 722 DTRACE_CLASS_COMMON 723 }; 724 725 const dtrace_attribute_t _dtrace_symattr = { 726 DTRACE_STABILITY_PRIVATE, 727 DTRACE_STABILITY_PRIVATE, 728 DTRACE_CLASS_UNKNOWN 729 }; 730 731 const dtrace_attribute_t _dtrace_typattr = { 732 DTRACE_STABILITY_PRIVATE, 733 DTRACE_STABILITY_PRIVATE, 734 DTRACE_CLASS_UNKNOWN 735 }; 736 737 const dtrace_attribute_t _dtrace_prvattr = { 738 DTRACE_STABILITY_PRIVATE, 739 DTRACE_STABILITY_PRIVATE, 740 DTRACE_CLASS_UNKNOWN 741 }; 742 743 const dtrace_pattr_t _dtrace_prvdesc = { 744 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 745 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 746 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 747 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 748 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 749 }; 750 751 #if defined(sun) 752 const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */ 753 const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */ 754 #else 755 const char *_dtrace_defcpp = "cpp"; /* default cpp(1) to invoke */ 756 const char *_dtrace_defld = "ld"; /* default ld(1) to invoke */ 757 #endif 758 759 const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */ 760 #if defined(sun) 761 const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */ 762 #else 763 const char *_dtrace_provdir = "/dev/dtrace"; /* provider directory */ 764 #endif 765 766 int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */ 767 int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */ 768 uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */ 769 uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */ 770 uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */ 771 uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */ 772 size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */ 773 int _dtrace_argmax = 32; /* default maximum number of probe arguments */ 774 775 int _dtrace_debug = 0; /* debug messages enabled (off) */ 776 const char *const _dtrace_version = DT_VERS_STRING; /* API version string */ 777 int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */ 778 779 typedef struct dt_fdlist { 780 int *df_fds; /* array of provider driver file descriptors */ 781 uint_t df_ents; /* number of valid elements in df_fds[] */ 782 uint_t df_size; /* size of df_fds[] */ 783 } dt_fdlist_t; 784 785 #if defined(sun) 786 #pragma init(_dtrace_init) 787 #else 788 void _dtrace_init(void) __attribute__ ((constructor)); 789 #endif 790 void 791 _dtrace_init(void) 792 { 793 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL; 794 795 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) { 796 if (rd_init(_dtrace_rdvers) == RD_OK) 797 break; 798 } 799 #if defined(__i386__) 800 /* make long doubles 64 bits -sson */ 801 (void) fpsetprec(FP_PE); 802 #endif 803 } 804 805 static dtrace_hdl_t * 806 set_open_errno(dtrace_hdl_t *dtp, int *errp, int err) 807 { 808 if (dtp != NULL) 809 dtrace_close(dtp); 810 if (errp != NULL) 811 *errp = err; 812 return (NULL); 813 } 814 815 static void 816 dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp) 817 { 818 dt_provmod_t *prov; 819 char path[PATH_MAX]; 820 int fd; 821 #if defined(sun) 822 struct dirent *dp, *ep; 823 DIR *dirp; 824 825 if ((dirp = opendir(_dtrace_provdir)) == NULL) 826 return; /* failed to open directory; just skip it */ 827 828 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1); 829 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1); 830 831 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) { 832 if (dp->d_name[0] == '.') 833 continue; /* skip "." and ".." */ 834 835 if (dfp->df_ents == dfp->df_size) { 836 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 837 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 838 839 if (fds == NULL) 840 break; /* skip the rest of this directory */ 841 842 dfp->df_fds = fds; 843 dfp->df_size = size; 844 } 845 846 (void) snprintf(path, sizeof (path), "%s/%s", 847 _dtrace_provdir, dp->d_name); 848 849 if ((fd = open(path, O_RDONLY)) == -1) 850 continue; /* failed to open driver; just skip it */ 851 852 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 853 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) { 854 free(prov); 855 (void) close(fd); 856 break; 857 } 858 859 (void) strcpy(prov->dp_name, dp->d_name); 860 prov->dp_next = *provmod; 861 *provmod = prov; 862 863 dt_dprintf("opened provider %s\n", dp->d_name); 864 dfp->df_fds[dfp->df_ents++] = fd; 865 } 866 867 (void) closedir(dirp); 868 #else 869 char *p; 870 char *p1; 871 char *p_providers = NULL; 872 int error; 873 size_t len = 0; 874 875 /* 876 * Loop to allocate/reallocate memory for the string of provider 877 * names and retry: 878 */ 879 while(1) { 880 /* 881 * The first time around, get the string length. The next time, 882 * hopefully we've allocated enough memory. 883 */ 884 error = sysctlbyname("debug.dtrace.providers",p_providers,&len,NULL,0); 885 if (len == 0) 886 /* No providers? That's strange. Where's dtrace? */ 887 break; 888 else if (error == 0 && p_providers == NULL) { 889 /* 890 * Allocate the initial memory which should be enough 891 * unless another provider loads before we have 892 * time to go back and get the string. 893 */ 894 if ((p_providers = malloc(len)) == NULL) 895 /* How do we report errors here? */ 896 return; 897 } else if (error == -1 && errno == ENOMEM) { 898 /* 899 * The current buffer isn't large enough, so 900 * reallocate it. We normally won't need to do this 901 * because providers aren't being loaded all the time. 902 */ 903 if ((p = realloc(p_providers,len)) == NULL) 904 /* How do we report errors here? */ 905 return; 906 p_providers = p; 907 } else 908 break; 909 } 910 911 /* Check if we got a string of provider names: */ 912 if (error == 0 && len > 0 && p_providers != NULL) { 913 p = p_providers; 914 915 /* 916 * Parse the string containing the space separated 917 * provider names. 918 */ 919 while ((p1 = strsep(&p," ")) != NULL) { 920 if (dfp->df_ents == dfp->df_size) { 921 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 922 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 923 924 if (fds == NULL) 925 break; 926 927 dfp->df_fds = fds; 928 dfp->df_size = size; 929 } 930 931 (void) snprintf(path, sizeof (path), "/dev/dtrace/%s", p1); 932 933 if ((fd = open(path, O_RDONLY)) == -1) 934 continue; /* failed to open driver; just skip it */ 935 936 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 937 (prov->dp_name = malloc(strlen(p1) + 1)) == NULL) { 938 free(prov); 939 (void) close(fd); 940 break; 941 } 942 943 (void) strcpy(prov->dp_name, p1); 944 prov->dp_next = *provmod; 945 *provmod = prov; 946 947 dt_dprintf("opened provider %s\n", p1); 948 dfp->df_fds[dfp->df_ents++] = fd; 949 } 950 } 951 if (p_providers != NULL) 952 free(p_providers); 953 #endif 954 } 955 956 static void 957 dt_provmod_destroy(dt_provmod_t **provmod) 958 { 959 dt_provmod_t *next, *current; 960 961 for (current = *provmod; current != NULL; current = next) { 962 next = current->dp_next; 963 free(current->dp_name); 964 free(current); 965 } 966 967 *provmod = NULL; 968 } 969 970 #if defined(sun) 971 static const char * 972 dt_get_sysinfo(int cmd, char *buf, size_t len) 973 { 974 ssize_t rv = sysinfo(cmd, buf, len); 975 char *p = buf; 976 977 if (rv < 0 || rv > len) 978 (void) snprintf(buf, len, "%s", "Unknown"); 979 980 while ((p = strchr(p, '.')) != NULL) 981 *p++ = '_'; 982 983 return (buf); 984 } 985 #endif 986 987 static dtrace_hdl_t * 988 dt_vopen(int version, int flags, int *errp, 989 const dtrace_vector_t *vector, void *arg) 990 { 991 dtrace_hdl_t *dtp = NULL; 992 int dtfd = -1, ftfd = -1, fterr = 0; 993 dtrace_prog_t *pgp; 994 dt_module_t *dmp; 995 dt_provmod_t *provmod = NULL; 996 int i, err; 997 struct rlimit rl; 998 999 const dt_intrinsic_t *dinp; 1000 const dt_typedef_t *dtyp; 1001 const dt_ident_t *idp; 1002 1003 dtrace_typeinfo_t dtt; 1004 ctf_funcinfo_t ctc; 1005 ctf_arinfo_t ctr; 1006 1007 dt_fdlist_t df = { NULL, 0, 0 }; 1008 1009 char isadef[32], utsdef[32]; 1010 char s1[64], s2[64]; 1011 1012 if (version <= 0) 1013 return (set_open_errno(dtp, errp, EINVAL)); 1014 1015 if (version > DTRACE_VERSION) 1016 return (set_open_errno(dtp, errp, EDT_VERSION)); 1017 1018 if (version < DTRACE_VERSION) { 1019 /* 1020 * Currently, increasing the library version number is used to 1021 * denote a binary incompatible change. That is, a consumer 1022 * of the library cannot run on a version of the library with 1023 * a higher DTRACE_VERSION number than the consumer compiled 1024 * against. Once the library API has been committed to, 1025 * backwards binary compatibility will be required; at that 1026 * time, this check should change to return EDT_OVERSION only 1027 * if the specified version number is less than the version 1028 * number at the time of interface commitment. 1029 */ 1030 return (set_open_errno(dtp, errp, EDT_OVERSION)); 1031 } 1032 1033 if (flags & ~DTRACE_O_MASK) 1034 return (set_open_errno(dtp, errp, EINVAL)); 1035 1036 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32)) 1037 return (set_open_errno(dtp, errp, EINVAL)); 1038 1039 if (vector == NULL && arg != NULL) 1040 return (set_open_errno(dtp, errp, EINVAL)); 1041 1042 if (elf_version(EV_CURRENT) == EV_NONE) 1043 return (set_open_errno(dtp, errp, EDT_ELFVERSION)); 1044 1045 if (vector != NULL || (flags & DTRACE_O_NODEV)) 1046 goto alloc; /* do not attempt to open dtrace device */ 1047 1048 /* 1049 * Before we get going, crank our limit on file descriptors up to the 1050 * hard limit. This is to allow for the fact that libproc keeps file 1051 * descriptors to objects open for the lifetime of the proc handle; 1052 * without raising our hard limit, we would have an acceptably small 1053 * bound on the number of processes that we could concurrently 1054 * instrument with the pid provider. 1055 */ 1056 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) { 1057 rl.rlim_cur = rl.rlim_max; 1058 (void) setrlimit(RLIMIT_NOFILE, &rl); 1059 } 1060 1061 /* 1062 * Get the device path of each of the providers. We hold them open 1063 * in the df.df_fds list until we open the DTrace driver itself, 1064 * allowing us to see all of the probes provided on this system. Once 1065 * we have the DTrace driver open, we can safely close all the providers 1066 * now that they have registered with the framework. 1067 */ 1068 dt_provmod_open(&provmod, &df); 1069 1070 dtfd = open("/dev/dtrace/dtrace", O_RDWR); 1071 err = errno; /* save errno from opening dtfd */ 1072 1073 #if defined(sun) 1074 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR); 1075 #else 1076 ftfd = open("/dev/dtrace/fasttrap", O_RDWR); 1077 #endif 1078 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */ 1079 1080 while (df.df_ents-- != 0) 1081 (void) close(df.df_fds[df.df_ents]); 1082 1083 free(df.df_fds); 1084 1085 /* 1086 * If we failed to open the dtrace device, fail dtrace_open(). 1087 * We convert some kernel errnos to custom libdtrace errnos to 1088 * improve the resulting message from the usual strerror(). 1089 */ 1090 if (dtfd == -1) { 1091 dt_provmod_destroy(&provmod); 1092 switch (err) { 1093 case ENOENT: 1094 err = EDT_NOENT; 1095 break; 1096 case EBUSY: 1097 err = EDT_BUSY; 1098 break; 1099 case EACCES: 1100 err = EDT_ACCESS; 1101 break; 1102 } 1103 return (set_open_errno(dtp, errp, err)); 1104 } 1105 1106 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC); 1107 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC); 1108 1109 alloc: 1110 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL) 1111 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1112 1113 bzero(dtp, sizeof (dtrace_hdl_t)); 1114 dtp->dt_oflags = flags; 1115 #if defined(sun) 1116 dtp->dt_prcmode = DT_PROC_STOP_PREINIT; 1117 #else 1118 dtp->dt_prcmode = DT_PROC_STOP_MAIN; 1119 #endif 1120 dtp->dt_linkmode = DT_LINK_KERNEL; 1121 dtp->dt_linktype = DT_LTYP_ELF; 1122 dtp->dt_xlatemode = DT_XL_STATIC; 1123 dtp->dt_stdcmode = DT_STDC_XA; 1124 dtp->dt_version = version; 1125 dtp->dt_fd = dtfd; 1126 dtp->dt_ftfd = ftfd; 1127 dtp->dt_fterr = fterr; 1128 dtp->dt_cdefs_fd = -1; 1129 dtp->dt_ddefs_fd = -1; 1130 #if defined(sun) 1131 dtp->dt_stdout_fd = -1; 1132 #else 1133 dtp->dt_freopen_fp = NULL; 1134 #endif 1135 dtp->dt_modbuckets = _dtrace_strbuckets; 1136 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *)); 1137 dtp->dt_provbuckets = _dtrace_strbuckets; 1138 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *)); 1139 dt_proc_hash_create(dtp); 1140 dtp->dt_vmax = DT_VERS_LATEST; 1141 dtp->dt_cpp_path = strdup(_dtrace_defcpp); 1142 dtp->dt_cpp_argv = malloc(sizeof (char *)); 1143 dtp->dt_cpp_argc = 1; 1144 dtp->dt_cpp_args = 1; 1145 dtp->dt_ld_path = strdup(_dtrace_defld); 1146 dtp->dt_provmod = provmod; 1147 dtp->dt_vector = vector; 1148 dtp->dt_varg = arg; 1149 dt_dof_init(dtp); 1150 (void) uname(&dtp->dt_uts); 1151 1152 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL || 1153 dtp->dt_procs == NULL || dtp->dt_ld_path == NULL || 1154 dtp->dt_cpp_path == NULL || dtp->dt_cpp_argv == NULL) 1155 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1156 1157 for (i = 0; i < DTRACEOPT_MAX; i++) 1158 dtp->dt_options[i] = DTRACEOPT_UNSET; 1159 1160 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path); 1161 1162 #if defined(sun) 1163 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u", 1164 (uint_t)(sizeof (void *) * NBBY)); 1165 1166 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s", 1167 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)), 1168 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2))); 1169 1170 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL || 1171 dt_cpp_add_arg(dtp, "-D__unix") == NULL || 1172 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL || 1173 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL || 1174 dt_cpp_add_arg(dtp, isadef) == NULL || 1175 dt_cpp_add_arg(dtp, utsdef) == NULL) 1176 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1177 #endif 1178 1179 if (flags & DTRACE_O_NODEV) 1180 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf)); 1181 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0) 1182 return (set_open_errno(dtp, errp, errno)); 1183 1184 if (flags & DTRACE_O_LP64) 1185 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64; 1186 else if (flags & DTRACE_O_ILP32) 1187 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32; 1188 1189 #ifdef __sparc 1190 /* 1191 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h> 1192 * and __sparcv9 is defined if we are doing a 64-bit compile. 1193 */ 1194 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL) 1195 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1196 1197 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 && 1198 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL) 1199 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1200 #endif 1201 1202 #if defined(sun) 1203 #ifdef __x86 1204 /* 1205 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit 1206 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC, 1207 * they are defined exclusive of one another (see PSARC 2004/619). 1208 */ 1209 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 1210 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL) 1211 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1212 } else { 1213 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL) 1214 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1215 } 1216 #endif 1217 #else 1218 #if defined(__amd64__) || defined(__i386__) 1219 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 1220 if (dt_cpp_add_arg(dtp, "-m64") == NULL) 1221 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1222 } else { 1223 if (dt_cpp_add_arg(dtp, "-m32") == NULL) 1224 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1225 } 1226 #endif 1227 #endif 1228 1229 if (dtp->dt_conf.dtc_difversion < DIF_VERSION) 1230 return (set_open_errno(dtp, errp, EDT_DIFVERS)); 1231 1232 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) 1233 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32)); 1234 else 1235 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64)); 1236 1237 /* 1238 * On FreeBSD the kernel module name can't be hard-coded. The 1239 * 'kern.bootfile' sysctl value tells us exactly which file is being 1240 * used as the kernel. 1241 */ 1242 #if !defined(sun) 1243 { 1244 char bootfile[MAXPATHLEN]; 1245 char *p; 1246 int i; 1247 size_t len = sizeof(bootfile); 1248 1249 /* This call shouldn't fail, but use a default just in case. */ 1250 if (sysctlbyname("kern.bootfile", bootfile, &len, NULL, 0) != 0) 1251 strlcpy(bootfile, "kernel", sizeof(bootfile)); 1252 1253 if ((p = strrchr(bootfile, '/')) != NULL) 1254 p++; 1255 else 1256 p = bootfile; 1257 1258 /* 1259 * Format the global variables based on the kernel module name. 1260 */ 1261 snprintf(curthread_str, sizeof(curthread_str), "%s`struct thread *",p); 1262 snprintf(intmtx_str, sizeof(intmtx_str), "int(%s`struct mtx *)",p); 1263 snprintf(threadmtx_str, sizeof(threadmtx_str), "struct thread *(%s`struct mtx *)",p); 1264 snprintf(rwlock_str, sizeof(rwlock_str), "int(%s`struct rwlock *)",p); 1265 snprintf(sxlock_str, sizeof(sxlock_str), "int(%s`struct sxlock *)",p); 1266 } 1267 #endif 1268 1269 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX); 1270 dtp->dt_aggs = dt_idhash_create("aggregation", NULL, 1271 DTRACE_AGGVARIDNONE + 1, UINT_MAX); 1272 1273 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals, 1274 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1275 1276 dtp->dt_tls = dt_idhash_create("thread local", NULL, 1277 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1278 1279 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL || 1280 dtp->dt_globals == NULL || dtp->dt_tls == NULL) 1281 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1282 1283 /* 1284 * Populate the dt_macros identifier hash table by hand: we can't use 1285 * the dt_idhash_populate() mechanism because we're not yet compiling 1286 * and dtrace_update() needs to immediately reference these idents. 1287 */ 1288 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) { 1289 if (dt_idhash_insert(dtp->dt_macros, idp->di_name, 1290 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr, 1291 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw, 1292 idp->di_iarg, 0) == NULL) 1293 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1294 } 1295 1296 /* 1297 * Update the module list using /system/object and load the values for 1298 * the macro variable definitions according to the current process. 1299 */ 1300 dtrace_update(dtp); 1301 1302 /* 1303 * Select the intrinsics and typedefs we want based on the data model. 1304 * The intrinsics are under "C". The typedefs are added under "D". 1305 */ 1306 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) { 1307 dinp = _dtrace_intrinsics_32; 1308 dtyp = _dtrace_typedefs_32; 1309 } else { 1310 dinp = _dtrace_intrinsics_64; 1311 dtyp = _dtrace_typedefs_64; 1312 } 1313 1314 /* 1315 * Create a dynamic CTF container under the "C" scope for intrinsic 1316 * types and types defined in ANSI-C header files that are included. 1317 */ 1318 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL) 1319 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1320 1321 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1322 return (set_open_errno(dtp, errp, EDT_CTF)); 1323 1324 dt_dprintf("created CTF container for %s (%p)\n", 1325 dmp->dm_name, (void *)dmp->dm_ctfp); 1326 1327 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1328 ctf_setspecific(dmp->dm_ctfp, dmp); 1329 1330 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1331 dmp->dm_modid = -1; /* no module ID */ 1332 1333 /* 1334 * Fill the dynamic "C" CTF container with all of the intrinsic 1335 * integer and floating-point types appropriate for this data model. 1336 */ 1337 for (; dinp->din_name != NULL; dinp++) { 1338 if (dinp->din_kind == CTF_K_INTEGER) { 1339 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT, 1340 dinp->din_name, &dinp->din_data); 1341 } else { 1342 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT, 1343 dinp->din_name, &dinp->din_data); 1344 } 1345 1346 if (err == CTF_ERR) { 1347 dt_dprintf("failed to add %s to C container: %s\n", 1348 dinp->din_name, ctf_errmsg( 1349 ctf_errno(dmp->dm_ctfp))); 1350 return (set_open_errno(dtp, errp, EDT_CTF)); 1351 } 1352 } 1353 1354 if (ctf_update(dmp->dm_ctfp) != 0) { 1355 dt_dprintf("failed to update C container: %s\n", 1356 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1357 return (set_open_errno(dtp, errp, EDT_CTF)); 1358 } 1359 1360 /* 1361 * Add intrinsic pointer types that are needed to initialize printf 1362 * format dictionary types (see table in dt_printf.c). 1363 */ 1364 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1365 ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1366 1367 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1368 ctf_lookup_by_name(dmp->dm_ctfp, "char")); 1369 1370 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1371 ctf_lookup_by_name(dmp->dm_ctfp, "int")); 1372 1373 if (ctf_update(dmp->dm_ctfp) != 0) { 1374 dt_dprintf("failed to update C container: %s\n", 1375 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1376 return (set_open_errno(dtp, errp, EDT_CTF)); 1377 } 1378 1379 /* 1380 * Create a dynamic CTF container under the "D" scope for types that 1381 * are defined by the D program itself or on-the-fly by the D compiler. 1382 * The "D" CTF container is a child of the "C" CTF container. 1383 */ 1384 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL) 1385 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1386 1387 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1388 return (set_open_errno(dtp, errp, EDT_CTF)); 1389 1390 dt_dprintf("created CTF container for %s (%p)\n", 1391 dmp->dm_name, (void *)dmp->dm_ctfp); 1392 1393 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1394 ctf_setspecific(dmp->dm_ctfp, dmp); 1395 1396 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1397 dmp->dm_modid = -1; /* no module ID */ 1398 1399 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) { 1400 dt_dprintf("failed to import D parent container: %s\n", 1401 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1402 return (set_open_errno(dtp, errp, EDT_CTF)); 1403 } 1404 1405 /* 1406 * Fill the dynamic "D" CTF container with all of the built-in typedefs 1407 * that we need to use for our D variable and function definitions. 1408 * This ensures that basic inttypes.h names are always available to us. 1409 */ 1410 for (; dtyp->dty_src != NULL; dtyp++) { 1411 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1412 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp, 1413 dtyp->dty_src)) == CTF_ERR) { 1414 dt_dprintf("failed to add typedef %s %s to D " 1415 "container: %s", dtyp->dty_src, dtyp->dty_dst, 1416 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1417 return (set_open_errno(dtp, errp, EDT_CTF)); 1418 } 1419 } 1420 1421 /* 1422 * Insert a CTF ID corresponding to a pointer to a type of kind 1423 * CTF_K_FUNCTION we can use in the compiler for function pointers. 1424 * CTF treats all function pointers as "int (*)()" so we only need one. 1425 */ 1426 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int"); 1427 ctc.ctc_argc = 0; 1428 ctc.ctc_flags = 0; 1429 1430 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp, 1431 CTF_ADD_ROOT, &ctc, NULL); 1432 1433 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp, 1434 CTF_ADD_ROOT, dtp->dt_type_func); 1435 1436 /* 1437 * We also insert CTF definitions for the special D intrinsic types 1438 * string and <DYN> into the D container. The string type is added 1439 * as a typedef of char[n]. The <DYN> type is an alias for void. 1440 * We compare types to these special CTF ids throughout the compiler. 1441 */ 1442 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char"); 1443 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long"); 1444 ctr.ctr_nelems = _dtrace_strsize; 1445 1446 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1447 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr)); 1448 1449 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1450 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1451 1452 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1453 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1454 1455 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1456 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1457 1458 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1459 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1460 1461 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR || 1462 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR || 1463 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR || 1464 dtp->dt_type_usymaddr == CTF_ERR) { 1465 dt_dprintf("failed to add intrinsic to D container: %s\n", 1466 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1467 return (set_open_errno(dtp, errp, EDT_CTF)); 1468 } 1469 1470 if (ctf_update(dmp->dm_ctfp) != 0) { 1471 dt_dprintf("failed update D container: %s\n", 1472 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1473 return (set_open_errno(dtp, errp, EDT_CTF)); 1474 } 1475 1476 /* 1477 * Initialize the integer description table used to convert integer 1478 * constants to the appropriate types. Refer to the comments above 1479 * dt_node_int() for a complete description of how this table is used. 1480 */ 1481 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) { 1482 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY, 1483 dtp->dt_ints[i].did_name, &dtt) != 0) { 1484 dt_dprintf("failed to lookup integer type %s: %s\n", 1485 dtp->dt_ints[i].did_name, 1486 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1487 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1488 } 1489 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp; 1490 dtp->dt_ints[i].did_type = dtt.dtt_type; 1491 } 1492 1493 /* 1494 * Now that we've created the "C" and "D" containers, move them to the 1495 * start of the module list so that these types and symbols are found 1496 * first (for stability) when iterating through the module list. 1497 */ 1498 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs); 1499 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs); 1500 1501 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs); 1502 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs); 1503 1504 if (dt_pfdict_create(dtp) == -1) 1505 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1506 1507 /* 1508 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default 1509 * because without /dev/dtrace open, we will not be able to load the 1510 * names and attributes of any providers or probes from the kernel. 1511 */ 1512 if (flags & DTRACE_O_NODEV) 1513 dtp->dt_cflags |= DTRACE_C_ZDEFS; 1514 1515 /* 1516 * Load hard-wired inlines into the definition cache by calling the 1517 * compiler on the raw definition string defined above. 1518 */ 1519 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire, 1520 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) { 1521 dt_dprintf("failed to load hard-wired definitions: %s\n", 1522 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1523 return (set_open_errno(dtp, errp, EDT_HARDWIRE)); 1524 } 1525 1526 dt_program_destroy(dtp, pgp); 1527 1528 /* 1529 * Set up the default DTrace library path. Once set, the next call to 1530 * dt_compile() will compile all the libraries. We intentionally defer 1531 * library processing to improve overhead for clients that don't ever 1532 * compile, and to provide better error reporting (because the full 1533 * reporting of compiler errors requires dtrace_open() to succeed). 1534 */ 1535 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0) 1536 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1537 1538 return (dtp); 1539 } 1540 1541 dtrace_hdl_t * 1542 dtrace_open(int version, int flags, int *errp) 1543 { 1544 return (dt_vopen(version, flags, errp, NULL, NULL)); 1545 } 1546 1547 dtrace_hdl_t * 1548 dtrace_vopen(int version, int flags, int *errp, 1549 const dtrace_vector_t *vector, void *arg) 1550 { 1551 return (dt_vopen(version, flags, errp, vector, arg)); 1552 } 1553 1554 void 1555 dtrace_close(dtrace_hdl_t *dtp) 1556 { 1557 dt_ident_t *idp, *ndp; 1558 dt_module_t *dmp; 1559 dt_provider_t *pvp; 1560 dtrace_prog_t *pgp; 1561 dt_xlator_t *dxp; 1562 dt_dirpath_t *dirp; 1563 int i; 1564 1565 if (dtp->dt_procs != NULL) 1566 dt_proc_hash_destroy(dtp); 1567 1568 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL) 1569 dt_program_destroy(dtp, pgp); 1570 1571 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL) 1572 dt_xlator_destroy(dtp, dxp); 1573 1574 dt_free(dtp, dtp->dt_xlatormap); 1575 1576 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) { 1577 ndp = idp->di_next; 1578 dt_ident_destroy(idp); 1579 } 1580 1581 if (dtp->dt_macros != NULL) 1582 dt_idhash_destroy(dtp->dt_macros); 1583 if (dtp->dt_aggs != NULL) 1584 dt_idhash_destroy(dtp->dt_aggs); 1585 if (dtp->dt_globals != NULL) 1586 dt_idhash_destroy(dtp->dt_globals); 1587 if (dtp->dt_tls != NULL) 1588 dt_idhash_destroy(dtp->dt_tls); 1589 1590 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL) 1591 dt_module_destroy(dtp, dmp); 1592 1593 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL) 1594 dt_provider_destroy(dtp, pvp); 1595 1596 if (dtp->dt_fd != -1) 1597 (void) close(dtp->dt_fd); 1598 if (dtp->dt_ftfd != -1) 1599 (void) close(dtp->dt_ftfd); 1600 if (dtp->dt_cdefs_fd != -1) 1601 (void) close(dtp->dt_cdefs_fd); 1602 if (dtp->dt_ddefs_fd != -1) 1603 (void) close(dtp->dt_ddefs_fd); 1604 #if defined(sun) 1605 if (dtp->dt_stdout_fd != -1) 1606 (void) close(dtp->dt_stdout_fd); 1607 #else 1608 if (dtp->dt_freopen_fp != NULL) 1609 (void) fclose(dtp->dt_freopen_fp); 1610 #endif 1611 1612 dt_epid_destroy(dtp); 1613 dt_aggid_destroy(dtp); 1614 dt_format_destroy(dtp); 1615 dt_buffered_destroy(dtp); 1616 dt_aggregate_destroy(dtp); 1617 free(dtp->dt_buf.dtbd_data); 1618 dt_pfdict_destroy(dtp); 1619 dt_provmod_destroy(&dtp->dt_provmod); 1620 dt_dof_fini(dtp); 1621 1622 for (i = 1; i < dtp->dt_cpp_argc; i++) 1623 free(dtp->dt_cpp_argv[i]); 1624 1625 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) { 1626 dt_list_delete(&dtp->dt_lib_path, dirp); 1627 free(dirp->dir_path); 1628 free(dirp); 1629 } 1630 1631 free(dtp->dt_cpp_argv); 1632 free(dtp->dt_cpp_path); 1633 free(dtp->dt_ld_path); 1634 1635 free(dtp->dt_mods); 1636 free(dtp->dt_provs); 1637 free(dtp); 1638 } 1639 1640 int 1641 dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods) 1642 { 1643 dt_provmod_t *prov; 1644 int i = 0; 1645 1646 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) { 1647 if (i < nmods) 1648 mods[i] = prov->dp_name; 1649 } 1650 1651 return (i); 1652 } 1653 1654 int 1655 dtrace_ctlfd(dtrace_hdl_t *dtp) 1656 { 1657 return (dtp->dt_fd); 1658 } 1659