dt_open.c revision 267925
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 * Copyright (c) 2012 by Delphix. All rights reserved. 26 */ 27 28#include <sys/types.h> 29#if defined(sun) 30#include <sys/modctl.h> 31#include <sys/systeminfo.h> 32#endif 33#include <sys/resource.h> 34 35#include <libelf.h> 36#include <strings.h> 37#if defined(sun) 38#include <alloca.h> 39#endif 40#include <limits.h> 41#include <unistd.h> 42#include <stdlib.h> 43#include <stdio.h> 44#include <fcntl.h> 45#include <errno.h> 46#include <assert.h> 47 48#define _POSIX_PTHREAD_SEMANTICS 49#include <dirent.h> 50#undef _POSIX_PTHREAD_SEMANTICS 51 52#include <dt_impl.h> 53#include <dt_program.h> 54#include <dt_module.h> 55#include <dt_printf.h> 56#include <dt_string.h> 57#include <dt_provider.h> 58#if !defined(sun) 59#include <sys/sysctl.h> 60#include <string.h> 61#endif 62#if defined(__i386__) 63#include <ieeefp.h> 64#endif 65 66/* 67 * Stability and versioning definitions. These #defines are used in the tables 68 * of identifiers below to fill in the attribute and version fields associated 69 * with each identifier. The DT_ATTR_* macros are a convenience to permit more 70 * concise declarations of common attributes such as Stable/Stable/Common. The 71 * DT_VERS_* macros declare the encoded integer values of all versions used so 72 * far. DT_VERS_LATEST must correspond to the latest version value among all 73 * versions exported by the D compiler. DT_VERS_STRING must be an ASCII string 74 * that contains DT_VERS_LATEST within it along with any suffixes (e.g. Beta). 75 * You must update DT_VERS_LATEST and DT_VERS_STRING when adding a new version, 76 * and then add the new version to the _dtrace_versions[] array declared below. 77 * Refer to the Solaris Dynamic Tracing Guide Stability and Versioning chapters 78 * respectively for an explanation of these DTrace features and their values. 79 * 80 * NOTE: Although the DTrace versioning scheme supports the labeling and 81 * introduction of incompatible changes (e.g. dropping an interface in a 82 * major release), the libdtrace code does not currently support this. 83 * All versions are assumed to strictly inherit from one another. If 84 * we ever need to provide divergent interfaces, this will need work. 85 */ 86#define DT_ATTR_STABCMN { DTRACE_STABILITY_STABLE, \ 87 DTRACE_STABILITY_STABLE, DTRACE_CLASS_COMMON } 88 89#define DT_ATTR_EVOLCMN { DTRACE_STABILITY_EVOLVING, \ 90 DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_COMMON \ 91} 92 93/* 94 * The version number should be increased for every customer visible release 95 * of DTrace. The major number should be incremented when a fundamental 96 * change has been made that would affect all consumers, and would reflect 97 * sweeping changes to DTrace or the D language. The minor number should be 98 * incremented when a change is introduced that could break scripts that had 99 * previously worked; for example, adding a new built-in variable could break 100 * a script which was already using that identifier. The micro number should 101 * be changed when introducing functionality changes or major bug fixes that 102 * do not affect backward compatibility -- this is merely to make capabilities 103 * easily determined from the version number. Minor bugs do not require any 104 * modification to the version number. 105 */ 106#define DT_VERS_1_0 DT_VERSION_NUMBER(1, 0, 0) 107#define DT_VERS_1_1 DT_VERSION_NUMBER(1, 1, 0) 108#define DT_VERS_1_2 DT_VERSION_NUMBER(1, 2, 0) 109#define DT_VERS_1_2_1 DT_VERSION_NUMBER(1, 2, 1) 110#define DT_VERS_1_2_2 DT_VERSION_NUMBER(1, 2, 2) 111#define DT_VERS_1_3 DT_VERSION_NUMBER(1, 3, 0) 112#define DT_VERS_1_4 DT_VERSION_NUMBER(1, 4, 0) 113#define DT_VERS_1_4_1 DT_VERSION_NUMBER(1, 4, 1) 114#define DT_VERS_1_5 DT_VERSION_NUMBER(1, 5, 0) 115#define DT_VERS_1_6 DT_VERSION_NUMBER(1, 6, 0) 116#define DT_VERS_1_6_1 DT_VERSION_NUMBER(1, 6, 1) 117#define DT_VERS_1_6_2 DT_VERSION_NUMBER(1, 6, 2) 118#define DT_VERS_1_6_3 DT_VERSION_NUMBER(1, 6, 3) 119#define DT_VERS_1_7 DT_VERSION_NUMBER(1, 7, 0) 120#define DT_VERS_1_7_1 DT_VERSION_NUMBER(1, 7, 1) 121#define DT_VERS_1_8 DT_VERSION_NUMBER(1, 8, 0) 122#define DT_VERS_1_8_1 DT_VERSION_NUMBER(1, 8, 1) 123#define DT_VERS_1_9 DT_VERSION_NUMBER(1, 9, 0) 124#define DT_VERS_1_9_1 DT_VERSION_NUMBER(1, 9, 1) 125#define DT_VERS_LATEST DT_VERS_1_9_1 126#define DT_VERS_STRING "Sun D 1.9.1" 127 128const dt_version_t _dtrace_versions[] = { 129 DT_VERS_1_0, /* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */ 130 DT_VERS_1_1, /* D API 1.1.0 Solaris Express 6/05 */ 131 DT_VERS_1_2, /* D API 1.2.0 Solaris 10 Update 1 */ 132 DT_VERS_1_2_1, /* D API 1.2.1 Solaris Express 4/06 */ 133 DT_VERS_1_2_2, /* D API 1.2.2 Solaris Express 6/06 */ 134 DT_VERS_1_3, /* D API 1.3 Solaris Express 10/06 */ 135 DT_VERS_1_4, /* D API 1.4 Solaris Express 2/07 */ 136 DT_VERS_1_4_1, /* D API 1.4.1 Solaris Express 4/07 */ 137 DT_VERS_1_5, /* D API 1.5 Solaris Express 7/07 */ 138 DT_VERS_1_6, /* D API 1.6 */ 139 DT_VERS_1_6_1, /* D API 1.6.1 */ 140 DT_VERS_1_6_2, /* D API 1.6.2 */ 141 DT_VERS_1_6_3, /* D API 1.6.3 */ 142 DT_VERS_1_7, /* D API 1.7 */ 143 DT_VERS_1_7_1, /* D API 1.7.1 */ 144 DT_VERS_1_8, /* D API 1.8 */ 145 DT_VERS_1_8_1, /* D API 1.8.1 */ 146 DT_VERS_1_9, /* D API 1.9 */ 147 DT_VERS_1_9_1, /* D API 1.9.1 */ 148 0 149}; 150 151/* 152 * Global variables that are formatted on FreeBSD based on the kernel file name. 153 */ 154#if !defined(sun) 155static char curthread_str[MAXPATHLEN]; 156static char intmtx_str[MAXPATHLEN]; 157static char threadmtx_str[MAXPATHLEN]; 158static char rwlock_str[MAXPATHLEN]; 159static char sxlock_str[MAXPATHLEN]; 160#endif 161 162/* 163 * Table of global identifiers. This is used to populate the global identifier 164 * hash when a new dtrace client open occurs. For more info see dt_ident.h. 165 * The global identifiers that represent functions use the dt_idops_func ops 166 * and specify the private data pointer as a prototype string which is parsed 167 * when the identifier is first encountered. These prototypes look like ANSI 168 * C function prototypes except that the special symbol "@" can be used as a 169 * wildcard to represent a single parameter of any type (i.e. any dt_node_t). 170 * The standard "..." notation can also be used to represent varargs. An empty 171 * parameter list is taken to mean void (that is, no arguments are permitted). 172 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional 173 * argument. 174 */ 175static const dt_ident_t _dtrace_globals[] = { 176{ "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0, 177 &dt_idops_func, "void *(size_t)" }, 178{ "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0, 179 &dt_idops_type, "int64_t" }, 180{ "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0, 181 &dt_idops_type, "int64_t" }, 182{ "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0, 183 &dt_idops_type, "int64_t" }, 184{ "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0, 185 &dt_idops_type, "int64_t" }, 186{ "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0, 187 &dt_idops_type, "int64_t" }, 188{ "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0, 189 &dt_idops_type, "int64_t" }, 190{ "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0, 191 &dt_idops_type, "int64_t" }, 192{ "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0, 193 &dt_idops_type, "int64_t" }, 194{ "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0, 195 &dt_idops_type, "int64_t" }, 196{ "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0, 197 &dt_idops_type, "int64_t" }, 198{ "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0, 199 &dt_idops_args, NULL }, 200{ "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0, 201 &dt_idops_func, "void(@)" }, 202{ "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0, 203 &dt_idops_func, "string(const char *)" }, 204{ "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0, 205 &dt_idops_func, "void(void *, void *, size_t)" }, 206{ "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT, 207 DT_ATTR_STABCMN, DT_VERS_1_0, 208 &dt_idops_func, "void()" }, 209{ "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0, 210 &dt_idops_type, "uintptr_t" }, 211{ "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0, 212 &dt_idops_func, "void(int)" }, 213{ "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN, 214 DT_VERS_1_0, &dt_idops_func, "string(const char *)" }, 215{ "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0, 216 &dt_idops_func, "void(...)" }, 217{ "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0, 218 &dt_idops_func, "void(int)" }, 219{ "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0, 220 &dt_idops_func, "void *(uintptr_t, size_t)" }, 221{ "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR, 222 DT_ATTR_STABCMN, DT_VERS_1_0, 223 &dt_idops_func, "string(uintptr_t, [size_t])" }, 224{ "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN, 225 DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" }, 226{ "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0, 227 &dt_idops_func, "void(void *, uintptr_t, size_t)" }, 228{ "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR, 229 DT_ATTR_STABCMN, DT_VERS_1_0, 230 &dt_idops_func, "void(char *, uintptr_t, size_t)" }, 231{ "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0, 232 &dt_idops_func, "void()" }, 233{ "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD, 234 { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE, 235 DTRACE_CLASS_COMMON }, DT_VERS_1_0, 236#if defined(sun) 237 &dt_idops_type, "genunix`kthread_t *" }, 238#else 239 &dt_idops_type, curthread_str }, 240#endif 241{ "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME, 242 DT_ATTR_EVOLCMN, DT_VERS_1_0, 243 &dt_idops_func, "string(void *, int64_t)" }, 244{ "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN, 245 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 246{ "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0, 247 &dt_idops_func, "string(const char *)" }, 248{ "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0, 249 &dt_idops_func, "void(int)" }, 250{ "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0, 251 &dt_idops_type, "uint_t" }, 252{ "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0, 253 &dt_idops_type, "int" }, 254{ "execargs", DT_IDENT_SCALAR, 0, DIF_VAR_EXECARGS, 255 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 256{ "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME, 257 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 258{ "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0, 259 &dt_idops_func, "void(int)" }, 260{ "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN, 261 DT_VERS_1_1, &dt_idops_func, "void(@, ...)" }, 262{ "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN, 263 DT_VERS_1_0, &dt_idops_func, "void()" }, 264{ "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 265 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 266{ "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR, 267 DT_ATTR_EVOLCMN, DT_VERS_1_0, 268 &dt_idops_func, "genunix`major_t(genunix`dev_t)" }, 269{ "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR, 270 DT_ATTR_EVOLCMN, DT_VERS_1_0, 271 &dt_idops_func, "genunix`minor_t(genunix`dev_t)" }, 272{ "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 273 &dt_idops_func, "uint32_t(uint32_t)" }, 274{ "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 275 &dt_idops_func, "uint64_t(uint64_t)" }, 276{ "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 277 &dt_idops_func, "uint16_t(uint16_t)" }, 278{ "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0, 279 &dt_idops_type, "gid_t" }, 280{ "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0, 281 &dt_idops_type, "uint_t" }, 282{ "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 283 &dt_idops_func, "int(const char *, const char *, [int])" }, 284{ "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN, 285#if defined(sun) 286 DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" }, 287#else 288 DT_VERS_1_5, &dt_idops_func, "string(in_addr_t *)" }, 289#endif 290{ "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN, 291#if defined(sun) 292 DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" }, 293#else 294 DT_VERS_1_5, &dt_idops_func, "string(struct in6_addr *)" }, 295#endif 296{ "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN, 297 DT_VERS_1_5, &dt_idops_func, "string(int, void *)" }, 298{ "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0, 299 &dt_idops_type, "uint_t" }, 300{ "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 301 &dt_idops_func, "stack(...)" }, 302{ "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0, 303 &dt_idops_func, "string(int64_t, [int])" }, 304{ "llquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LLQUANTIZE, DT_ATTR_STABCMN, 305 DT_VERS_1_7, &dt_idops_func, 306 "void(@, int32_t, int32_t, int32_t, int32_t, ...)" }, 307{ "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE, 308 DT_ATTR_STABCMN, DT_VERS_1_0, 309 &dt_idops_func, "void(@, int32_t, int32_t, ...)" }, 310{ "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0, 311 &dt_idops_func, "void(@)" }, 312{ "memref", DT_IDENT_FUNC, 0, DIF_SUBR_MEMREF, DT_ATTR_STABCMN, DT_VERS_1_1, 313 &dt_idops_func, "uintptr_t *(void *, size_t)" }, 314#if !defined(sun) 315{ "memstr", DT_IDENT_FUNC, 0, DIF_SUBR_MEMSTR, DT_ATTR_STABCMN, DT_VERS_1_0, 316 &dt_idops_func, "string(void *, char, size_t)" }, 317#endif 318{ "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0, 319 &dt_idops_func, "void(@)" }, 320{ "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN, 321 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 322{ "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE, 323 DT_ATTR_STABCMN, DT_VERS_1_0, 324 &dt_idops_func, "size_t(mblk_t *)" }, 325{ "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE, 326 DT_ATTR_STABCMN, DT_VERS_1_0, 327 &dt_idops_func, "size_t(mblk_t *)" }, 328#if defined(sun) 329{ "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 330 DT_ATTR_EVOLCMN, DT_VERS_1_0, 331 &dt_idops_func, "int(genunix`kmutex_t *)" }, 332{ "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 333 DT_ATTR_EVOLCMN, DT_VERS_1_0, 334 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" }, 335{ "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 336 DT_ATTR_EVOLCMN, DT_VERS_1_0, 337 &dt_idops_func, "int(genunix`kmutex_t *)" }, 338{ "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 339 DT_ATTR_EVOLCMN, DT_VERS_1_0, 340 &dt_idops_func, "int(genunix`kmutex_t *)" }, 341#else 342{ "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 343 DT_ATTR_EVOLCMN, DT_VERS_1_0, 344 &dt_idops_func, intmtx_str }, 345{ "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 346 DT_ATTR_EVOLCMN, DT_VERS_1_0, 347 &dt_idops_func, threadmtx_str }, 348{ "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 349 DT_ATTR_EVOLCMN, DT_VERS_1_0, 350 &dt_idops_func, intmtx_str }, 351{ "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 352 DT_ATTR_EVOLCMN, DT_VERS_1_0, 353 &dt_idops_func, intmtx_str }, 354#endif 355{ "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 356 &dt_idops_func, "uint32_t(uint32_t)" }, 357{ "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 358 &dt_idops_func, "uint64_t(uint64_t)" }, 359{ "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 360 &dt_idops_func, "uint16_t(uint16_t)" }, 361{ "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN, 362 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 363{ "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0, 364 &dt_idops_func, "void()" }, 365{ "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0, 366 &dt_idops_type, "pid_t" }, 367{ "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0, 368 &dt_idops_type, "pid_t" }, 369{ "print", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINT, DT_ATTR_STABCMN, DT_VERS_1_9, 370 &dt_idops_func, "void(@)" }, 371{ "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0, 372 &dt_idops_func, "void(@, ...)" }, 373{ "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0, 374 &dt_idops_func, "void(@, ...)" }, 375{ "printm", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTM, DT_ATTR_STABCMN, DT_VERS_1_0, 376 &dt_idops_func, "void(size_t, uintptr_t *)" }, 377{ "printt", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTT, DT_ATTR_STABCMN, DT_VERS_1_0, 378 &dt_idops_func, "void(size_t, uintptr_t *)" }, 379{ "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC, 380 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 381{ "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD, 382 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 383{ "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME, 384 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 385{ "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV, 386 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 387{ "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF, 388 DT_ATTR_STABCMN, DT_VERS_1_0, 389 &dt_idops_func, "int(pid_t)" }, 390{ "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE, 391 DT_ATTR_STABCMN, DT_VERS_1_0, 392 &dt_idops_func, "void(@, ...)" }, 393{ "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0, 394 &dt_idops_func, "void(int)" }, 395{ "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0, 396 &dt_idops_func, "int()" }, 397{ "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 398 &dt_idops_func, "int(const char *, const char *, [int])" }, 399#if defined(sun) 400{ "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 401 DT_ATTR_EVOLCMN, DT_VERS_1_0, 402 &dt_idops_func, "int(genunix`krwlock_t *)" }, 403{ "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 404 DT_ATTR_EVOLCMN, DT_VERS_1_0, 405 &dt_idops_func, "int(genunix`krwlock_t *)" }, 406{ "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 407 DT_ATTR_EVOLCMN, DT_VERS_1_0, 408 &dt_idops_func, "int(genunix`krwlock_t *)" }, 409#else 410{ "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 411 DT_ATTR_EVOLCMN, DT_VERS_1_0, 412 &dt_idops_func, rwlock_str }, 413{ "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 414 DT_ATTR_EVOLCMN, DT_VERS_1_0, 415 &dt_idops_func, rwlock_str }, 416{ "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 417 DT_ATTR_EVOLCMN, DT_VERS_1_0, 418 &dt_idops_func, rwlock_str }, 419#endif 420{ "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 421 &dt_idops_type, "void" }, 422{ "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN, 423 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" }, 424{ "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE, 425 DT_ATTR_STABCMN, DT_VERS_1_0, 426 &dt_idops_func, "void(int)" }, 427{ "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION, 428 DT_ATTR_STABCMN, DT_VERS_1_0, 429 &dt_idops_func, "int()" }, 430{ "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0, 431 &dt_idops_func, "stack(...)" }, 432{ "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH, 433 DT_ATTR_STABCMN, DT_VERS_1_0, 434 &dt_idops_type, "uint32_t" }, 435{ "stddev", DT_IDENT_AGGFUNC, 0, DTRACEAGG_STDDEV, DT_ATTR_STABCMN, 436 DT_VERS_1_6, &dt_idops_func, "void(@)" }, 437{ "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0, 438 &dt_idops_func, "void()" }, 439{ "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 440 &dt_idops_func, "string(const char *, char)" }, 441{ "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0, 442 &dt_idops_func, "size_t(const char *)" }, 443{ "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0, 444 &dt_idops_func, "string(const char *, const char *)" }, 445{ "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 446 &dt_idops_func, "string(const char *, char)" }, 447{ "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 448 &dt_idops_func, "string(const char *, const char *)" }, 449{ "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1, 450 &dt_idops_func, "string(const char *, const char *)" }, 451{ "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 452 &dt_idops_func, "string(const char *, int, [int])" }, 453{ "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0, 454 &dt_idops_func, "void(@)" }, 455#if !defined(sun) 456{ "sx_isexclusive", DT_IDENT_FUNC, 0, DIF_SUBR_SX_ISEXCLUSIVE, 457 DT_ATTR_EVOLCMN, DT_VERS_1_0, 458 &dt_idops_func, sxlock_str }, 459{ "sx_shared_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_SHARED_HELD, 460 DT_ATTR_EVOLCMN, DT_VERS_1_0, 461 &dt_idops_func, sxlock_str }, 462{ "sx_exclusive_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_EXCLUSIVE_HELD, 463 DT_ATTR_EVOLCMN, DT_VERS_1_0, 464 &dt_idops_func, sxlock_str }, 465#endif 466{ "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 467 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 468{ "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0, 469 &dt_idops_func, "void(@, ...)" }, 470{ "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 471 &dt_idops_type, "void" }, 472{ "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0, 473 &dt_idops_type, "id_t" }, 474{ "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP, 475 DT_ATTR_STABCMN, DT_VERS_1_0, 476 &dt_idops_type, "uint64_t" }, 477{ "tolower", DT_IDENT_FUNC, 0, DIF_SUBR_TOLOWER, DT_ATTR_STABCMN, DT_VERS_1_8, 478 &dt_idops_func, "string(const char *)" }, 479{ "toupper", DT_IDENT_FUNC, 0, DIF_SUBR_TOUPPER, DT_ATTR_STABCMN, DT_VERS_1_8, 480 &dt_idops_func, "string(const char *)" }, 481{ "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0, 482 &dt_idops_func, "void(@)" }, 483{ "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM, 484 DT_ATTR_STABCMN, DT_VERS_1_0, 485 &dt_idops_func, "void(@, size_t, ...)" }, 486{ "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN, 487 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 488{ "typeref", DT_IDENT_FUNC, 0, DIF_SUBR_TYPEREF, DT_ATTR_STABCMN, DT_VERS_1_1, 489 &dt_idops_func, "uintptr_t *(void *, size_t, string, size_t)" }, 490{ "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN, 491 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 492{ "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN, 493 DT_VERS_1_2, &dt_idops_type, "uint64_t" }, 494{ "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 495 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 496{ "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0, 497 &dt_idops_type, "uid_t" }, 498{ "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN, 499 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 500{ "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0, 501 &dt_idops_regs, NULL }, 502{ "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 503 &dt_idops_func, "stack(...)" }, 504{ "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH, 505 DT_ATTR_STABCMN, DT_VERS_1_2, 506 &dt_idops_type, "uint32_t" }, 507{ "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 508 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 509{ "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP, 510 DT_ATTR_STABCMN, DT_VERS_1_0, 511 &dt_idops_type, "uint64_t" }, 512{ "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP, 513 DT_ATTR_STABCMN, DT_VERS_1_0, 514 &dt_idops_type, "int64_t" }, 515#if defined(sun) 516{ "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME, 517 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 518#endif 519 520#if !defined(sun) 521{ "cpu", DT_IDENT_SCALAR, 0, DIF_VAR_CPU, 522 DT_ATTR_STABCMN, DT_VERS_1_6_3, &dt_idops_type, "int" }, 523#endif 524 525{ NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL } 526}; 527 528/* 529 * Tables of ILP32 intrinsic integer and floating-point type templates to use 530 * to populate the dynamic "C" CTF type container. 531 */ 532static const dt_intrinsic_t _dtrace_intrinsics_32[] = { 533{ "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 534{ "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 535{ "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 536{ "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 537{ "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 538{ "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 539{ "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 540{ "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 541{ "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 542{ "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 543{ "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 544{ "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 545{ "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 546{ "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 547{ "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 548{ "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 549{ "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER }, 550{ "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 551{ "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 552{ "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 553{ "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 554{ "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 555{ "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 556{ "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 557{ "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 558{ "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 559{ "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 560{ "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 561{ NULL, { 0, 0, 0 }, 0 } 562}; 563 564/* 565 * Tables of LP64 intrinsic integer and floating-point type templates to use 566 * to populate the dynamic "C" CTF type container. 567 */ 568static const dt_intrinsic_t _dtrace_intrinsics_64[] = { 569{ "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 570{ "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 571{ "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 572{ "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 573{ "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 574{ "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 575{ "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 576{ "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 577{ "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 578{ "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 579{ "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 580{ "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 581{ "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 582{ "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 583{ "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 584{ "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 585{ "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER }, 586{ "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 587{ "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 588{ "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 589{ "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 590{ "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 591{ "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 592{ "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 593{ "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 594{ "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 595{ "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 596{ "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 597{ NULL, { 0, 0, 0 }, 0 } 598}; 599 600/* 601 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container. 602 * These aliases ensure that D definitions can use typical <sys/types.h> names. 603 */ 604static const dt_typedef_t _dtrace_typedefs_32[] = { 605{ "char", "int8_t" }, 606{ "short", "int16_t" }, 607{ "int", "int32_t" }, 608{ "long long", "int64_t" }, 609{ "int", "intptr_t" }, 610{ "int", "ssize_t" }, 611{ "unsigned char", "uint8_t" }, 612{ "unsigned short", "uint16_t" }, 613{ "unsigned", "uint32_t" }, 614{ "unsigned long long", "uint64_t" }, 615{ "unsigned char", "uchar_t" }, 616{ "unsigned short", "ushort_t" }, 617{ "unsigned", "uint_t" }, 618{ "unsigned long", "ulong_t" }, 619{ "unsigned long long", "u_longlong_t" }, 620{ "int", "ptrdiff_t" }, 621{ "unsigned", "uintptr_t" }, 622{ "unsigned", "size_t" }, 623{ "long", "id_t" }, 624{ "long", "pid_t" }, 625{ NULL, NULL } 626}; 627 628/* 629 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container. 630 * These aliases ensure that D definitions can use typical <sys/types.h> names. 631 */ 632static const dt_typedef_t _dtrace_typedefs_64[] = { 633{ "char", "int8_t" }, 634{ "short", "int16_t" }, 635{ "int", "int32_t" }, 636{ "long", "int64_t" }, 637{ "long", "intptr_t" }, 638{ "long", "ssize_t" }, 639{ "unsigned char", "uint8_t" }, 640{ "unsigned short", "uint16_t" }, 641{ "unsigned", "uint32_t" }, 642{ "unsigned long", "uint64_t" }, 643{ "unsigned char", "uchar_t" }, 644{ "unsigned short", "ushort_t" }, 645{ "unsigned", "uint_t" }, 646{ "unsigned long", "ulong_t" }, 647{ "unsigned long long", "u_longlong_t" }, 648{ "long", "ptrdiff_t" }, 649{ "unsigned long", "uintptr_t" }, 650{ "unsigned long", "size_t" }, 651{ "int", "id_t" }, 652{ "int", "pid_t" }, 653{ NULL, NULL } 654}; 655 656/* 657 * Tables of ILP32 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 */ 660static const dt_intdesc_t _dtrace_ints_32[] = { 661{ "int", NULL, CTF_ERR, 0x7fffffffULL }, 662{ "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 663{ "long", NULL, CTF_ERR, 0x7fffffffULL }, 664{ "unsigned long", NULL, CTF_ERR, 0xffffffffULL }, 665{ "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 666{ "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 667}; 668 669/* 670 * Tables of LP64 integer type templates used to populate the dtp->dt_ints[] 671 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 672 */ 673static const dt_intdesc_t _dtrace_ints_64[] = { 674{ "int", NULL, CTF_ERR, 0x7fffffffULL }, 675{ "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 676{ "long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 677{ "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL }, 678{ "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 679{ "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 680}; 681 682/* 683 * Table of macro variable templates used to populate the macro identifier hash 684 * when a new dtrace client open occurs. Values are set by dtrace_update(). 685 */ 686static const dt_ident_t _dtrace_macros[] = { 687{ "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 688{ "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 689{ "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 690{ "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 691{ "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 692{ "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 693{ "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 694{ "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 695{ "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 696{ "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 697{ "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 698{ NULL, 0, 0, 0, { 0, 0, 0 }, 0 } 699}; 700 701/* 702 * Hard-wired definition string to be compiled and cached every time a new 703 * DTrace library handle is initialized. This string should only be used to 704 * contain definitions that should be present regardless of DTRACE_O_NOLIBS. 705 */ 706static const char _dtrace_hardwire[] = "\ 707inline long NULL = 0; \n\ 708#pragma D binding \"1.0\" NULL\n\ 709"; 710 711/* 712 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV. 713 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel. 714 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are 715 * relying on the fact that when running dtrace(1M), isaexec will invoke the 716 * binary with the same bitness as the kernel, which is what we want by default 717 * when generating our DIF. The user can override the choice using oflags. 718 */ 719static const dtrace_conf_t _dtrace_conf = { 720 DIF_VERSION, /* dtc_difversion */ 721 DIF_DIR_NREGS, /* dtc_difintregs */ 722 DIF_DTR_NREGS, /* dtc_diftupregs */ 723 CTF_MODEL_NATIVE /* dtc_ctfmodel */ 724}; 725 726const dtrace_attribute_t _dtrace_maxattr = { 727 DTRACE_STABILITY_MAX, 728 DTRACE_STABILITY_MAX, 729 DTRACE_CLASS_MAX 730}; 731 732const dtrace_attribute_t _dtrace_defattr = { 733 DTRACE_STABILITY_STABLE, 734 DTRACE_STABILITY_STABLE, 735 DTRACE_CLASS_COMMON 736}; 737 738const dtrace_attribute_t _dtrace_symattr = { 739 DTRACE_STABILITY_PRIVATE, 740 DTRACE_STABILITY_PRIVATE, 741 DTRACE_CLASS_UNKNOWN 742}; 743 744const dtrace_attribute_t _dtrace_typattr = { 745 DTRACE_STABILITY_PRIVATE, 746 DTRACE_STABILITY_PRIVATE, 747 DTRACE_CLASS_UNKNOWN 748}; 749 750const dtrace_attribute_t _dtrace_prvattr = { 751 DTRACE_STABILITY_PRIVATE, 752 DTRACE_STABILITY_PRIVATE, 753 DTRACE_CLASS_UNKNOWN 754}; 755 756const dtrace_pattr_t _dtrace_prvdesc = { 757{ DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 758{ DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 759{ DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 760{ DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 761{ DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 762}; 763 764#if defined(sun) 765const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */ 766const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */ 767#else 768const char *_dtrace_defcpp = "cpp"; /* default cpp(1) to invoke */ 769const char *_dtrace_defld = "ld"; /* default ld(1) to invoke */ 770#endif 771 772const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */ 773#if defined(sun) 774const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */ 775#else 776const char *_dtrace_provdir = "/dev/dtrace"; /* provider directory */ 777#endif 778 779int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */ 780int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */ 781uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */ 782uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */ 783uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */ 784uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */ 785size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */ 786int _dtrace_argmax = 32; /* default maximum number of probe arguments */ 787 788int _dtrace_debug = 0; /* debug messages enabled (off) */ 789const char *const _dtrace_version = DT_VERS_STRING; /* API version string */ 790int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */ 791 792typedef struct dt_fdlist { 793 int *df_fds; /* array of provider driver file descriptors */ 794 uint_t df_ents; /* number of valid elements in df_fds[] */ 795 uint_t df_size; /* size of df_fds[] */ 796} dt_fdlist_t; 797 798#if defined(sun) 799#pragma init(_dtrace_init) 800#else 801void _dtrace_init(void) __attribute__ ((constructor)); 802#endif 803void 804_dtrace_init(void) 805{ 806 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL; 807 808 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) { 809 if (rd_init(_dtrace_rdvers) == RD_OK) 810 break; 811 } 812#if defined(__i386__) 813 /* make long doubles 64 bits -sson */ 814 (void) fpsetprec(FP_PE); 815#endif 816} 817 818static dtrace_hdl_t * 819set_open_errno(dtrace_hdl_t *dtp, int *errp, int err) 820{ 821 if (dtp != NULL) 822 dtrace_close(dtp); 823 if (errp != NULL) 824 *errp = err; 825 return (NULL); 826} 827 828static void 829dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp) 830{ 831 dt_provmod_t *prov; 832 char path[PATH_MAX]; 833 int fd; 834#if defined(sun) 835 struct dirent *dp, *ep; 836 DIR *dirp; 837 838 if ((dirp = opendir(_dtrace_provdir)) == NULL) 839 return; /* failed to open directory; just skip it */ 840 841 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1); 842 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1); 843 844 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) { 845 if (dp->d_name[0] == '.') 846 continue; /* skip "." and ".." */ 847 848 if (dfp->df_ents == dfp->df_size) { 849 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 850 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 851 852 if (fds == NULL) 853 break; /* skip the rest of this directory */ 854 855 dfp->df_fds = fds; 856 dfp->df_size = size; 857 } 858 859 (void) snprintf(path, sizeof (path), "%s/%s", 860 _dtrace_provdir, dp->d_name); 861 862 if ((fd = open(path, O_RDONLY)) == -1) 863 continue; /* failed to open driver; just skip it */ 864 865 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 866 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) { 867 free(prov); 868 (void) close(fd); 869 break; 870 } 871 872 (void) strcpy(prov->dp_name, dp->d_name); 873 prov->dp_next = *provmod; 874 *provmod = prov; 875 876 dt_dprintf("opened provider %s\n", dp->d_name); 877 dfp->df_fds[dfp->df_ents++] = fd; 878 } 879 880 (void) closedir(dirp); 881#else 882 char *p; 883 char *p1; 884 char *p_providers = NULL; 885 int error; 886 size_t len = 0; 887 888 /* 889 * Loop to allocate/reallocate memory for the string of provider 890 * names and retry: 891 */ 892 while(1) { 893 /* 894 * The first time around, get the string length. The next time, 895 * hopefully we've allocated enough memory. 896 */ 897 error = sysctlbyname("debug.dtrace.providers",p_providers,&len,NULL,0); 898 if (len == 0) 899 /* No providers? That's strange. Where's dtrace? */ 900 break; 901 else if (error == 0 && p_providers == NULL) { 902 /* 903 * Allocate the initial memory which should be enough 904 * unless another provider loads before we have 905 * time to go back and get the string. 906 */ 907 if ((p_providers = malloc(len)) == NULL) 908 /* How do we report errors here? */ 909 return; 910 } else if (error == -1 && errno == ENOMEM) { 911 /* 912 * The current buffer isn't large enough, so 913 * reallocate it. We normally won't need to do this 914 * because providers aren't being loaded all the time. 915 */ 916 if ((p = realloc(p_providers,len)) == NULL) 917 /* How do we report errors here? */ 918 return; 919 p_providers = p; 920 } else 921 break; 922 } 923 924 /* Check if we got a string of provider names: */ 925 if (error == 0 && len > 0 && p_providers != NULL) { 926 p = p_providers; 927 928 /* 929 * Parse the string containing the space separated 930 * provider names. 931 */ 932 while ((p1 = strsep(&p," ")) != NULL) { 933 if (dfp->df_ents == dfp->df_size) { 934 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 935 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 936 937 if (fds == NULL) 938 break; 939 940 dfp->df_fds = fds; 941 dfp->df_size = size; 942 } 943 944 (void) snprintf(path, sizeof (path), "/dev/dtrace/%s", p1); 945 946 if ((fd = open(path, O_RDONLY)) == -1) 947 continue; /* failed to open driver; just skip it */ 948 949 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 950 (prov->dp_name = malloc(strlen(p1) + 1)) == NULL) { 951 free(prov); 952 (void) close(fd); 953 break; 954 } 955 956 (void) strcpy(prov->dp_name, p1); 957 prov->dp_next = *provmod; 958 *provmod = prov; 959 960 dt_dprintf("opened provider %s\n", p1); 961 dfp->df_fds[dfp->df_ents++] = fd; 962 } 963 } 964 if (p_providers != NULL) 965 free(p_providers); 966#endif 967} 968 969static void 970dt_provmod_destroy(dt_provmod_t **provmod) 971{ 972 dt_provmod_t *next, *current; 973 974 for (current = *provmod; current != NULL; current = next) { 975 next = current->dp_next; 976 free(current->dp_name); 977 free(current); 978 } 979 980 *provmod = NULL; 981} 982 983#if defined(sun) 984static const char * 985dt_get_sysinfo(int cmd, char *buf, size_t len) 986{ 987 ssize_t rv = sysinfo(cmd, buf, len); 988 char *p = buf; 989 990 if (rv < 0 || rv > len) 991 (void) snprintf(buf, len, "%s", "Unknown"); 992 993 while ((p = strchr(p, '.')) != NULL) 994 *p++ = '_'; 995 996 return (buf); 997} 998#endif 999 1000static dtrace_hdl_t * 1001dt_vopen(int version, int flags, int *errp, 1002 const dtrace_vector_t *vector, void *arg) 1003{ 1004 dtrace_hdl_t *dtp = NULL; 1005 int dtfd = -1, ftfd = -1, fterr = 0; 1006 dtrace_prog_t *pgp; 1007 dt_module_t *dmp; 1008 dt_provmod_t *provmod = NULL; 1009 int i, err; 1010 struct rlimit rl; 1011 1012 const dt_intrinsic_t *dinp; 1013 const dt_typedef_t *dtyp; 1014 const dt_ident_t *idp; 1015 1016 dtrace_typeinfo_t dtt; 1017 ctf_funcinfo_t ctc; 1018 ctf_arinfo_t ctr; 1019 1020 dt_fdlist_t df = { NULL, 0, 0 }; 1021 1022 char isadef[32], utsdef[32]; 1023 char s1[64], s2[64]; 1024 1025 if (version <= 0) 1026 return (set_open_errno(dtp, errp, EINVAL)); 1027 1028 if (version > DTRACE_VERSION) 1029 return (set_open_errno(dtp, errp, EDT_VERSION)); 1030 1031 if (version < DTRACE_VERSION) { 1032 /* 1033 * Currently, increasing the library version number is used to 1034 * denote a binary incompatible change. That is, a consumer 1035 * of the library cannot run on a version of the library with 1036 * a higher DTRACE_VERSION number than the consumer compiled 1037 * against. Once the library API has been committed to, 1038 * backwards binary compatibility will be required; at that 1039 * time, this check should change to return EDT_OVERSION only 1040 * if the specified version number is less than the version 1041 * number at the time of interface commitment. 1042 */ 1043 return (set_open_errno(dtp, errp, EDT_OVERSION)); 1044 } 1045 1046 if (flags & ~DTRACE_O_MASK) 1047 return (set_open_errno(dtp, errp, EINVAL)); 1048 1049 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32)) 1050 return (set_open_errno(dtp, errp, EINVAL)); 1051 1052 if (vector == NULL && arg != NULL) 1053 return (set_open_errno(dtp, errp, EINVAL)); 1054 1055 if (elf_version(EV_CURRENT) == EV_NONE) 1056 return (set_open_errno(dtp, errp, EDT_ELFVERSION)); 1057 1058 if (vector != NULL || (flags & DTRACE_O_NODEV)) 1059 goto alloc; /* do not attempt to open dtrace device */ 1060 1061 /* 1062 * Before we get going, crank our limit on file descriptors up to the 1063 * hard limit. This is to allow for the fact that libproc keeps file 1064 * descriptors to objects open for the lifetime of the proc handle; 1065 * without raising our hard limit, we would have an acceptably small 1066 * bound on the number of processes that we could concurrently 1067 * instrument with the pid provider. 1068 */ 1069 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) { 1070 rl.rlim_cur = rl.rlim_max; 1071 (void) setrlimit(RLIMIT_NOFILE, &rl); 1072 } 1073 1074 /* 1075 * Get the device path of each of the providers. We hold them open 1076 * in the df.df_fds list until we open the DTrace driver itself, 1077 * allowing us to see all of the probes provided on this system. Once 1078 * we have the DTrace driver open, we can safely close all the providers 1079 * now that they have registered with the framework. 1080 */ 1081 dt_provmod_open(&provmod, &df); 1082 1083 dtfd = open("/dev/dtrace/dtrace", O_RDWR); 1084 err = errno; /* save errno from opening dtfd */ 1085#if defined(__FreeBSD__) 1086 /* 1087 * Automatically load the 'dtraceall' module if we couldn't open the 1088 * char device. 1089 */ 1090 if (err == ENOENT && modfind("dtraceall") < 0) { 1091 kldload("dtraceall"); /* ignore the error */ 1092 dtfd = open("/dev/dtrace/dtrace", O_RDWR); 1093 err = errno; 1094 } 1095#endif 1096#if defined(sun) 1097 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR); 1098#else 1099 ftfd = open("/dev/dtrace/fasttrap", O_RDWR); 1100#endif 1101 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */ 1102 1103 while (df.df_ents-- != 0) 1104 (void) close(df.df_fds[df.df_ents]); 1105 1106 free(df.df_fds); 1107 1108 /* 1109 * If we failed to open the dtrace device, fail dtrace_open(). 1110 * We convert some kernel errnos to custom libdtrace errnos to 1111 * improve the resulting message from the usual strerror(). 1112 */ 1113 if (dtfd == -1) { 1114 dt_provmod_destroy(&provmod); 1115 switch (err) { 1116 case ENOENT: 1117 err = EDT_NOENT; 1118 break; 1119 case EBUSY: 1120 err = EDT_BUSY; 1121 break; 1122 case EACCES: 1123 err = EDT_ACCESS; 1124 break; 1125 } 1126 return (set_open_errno(dtp, errp, err)); 1127 } 1128 1129 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC); 1130 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC); 1131 1132alloc: 1133 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL) 1134 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1135 1136 bzero(dtp, sizeof (dtrace_hdl_t)); 1137 dtp->dt_oflags = flags; 1138#if defined(sun) 1139 dtp->dt_prcmode = DT_PROC_STOP_PREINIT; 1140#else 1141 dtp->dt_prcmode = DT_PROC_STOP_POSTINIT; 1142#endif 1143 dtp->dt_linkmode = DT_LINK_KERNEL; 1144 dtp->dt_linktype = DT_LTYP_ELF; 1145 dtp->dt_xlatemode = DT_XL_STATIC; 1146 dtp->dt_stdcmode = DT_STDC_XA; 1147 dtp->dt_version = version; 1148 dtp->dt_fd = dtfd; 1149 dtp->dt_ftfd = ftfd; 1150 dtp->dt_fterr = fterr; 1151 dtp->dt_cdefs_fd = -1; 1152 dtp->dt_ddefs_fd = -1; 1153#if defined(sun) 1154 dtp->dt_stdout_fd = -1; 1155#else 1156 dtp->dt_freopen_fp = NULL; 1157#endif 1158 dtp->dt_modbuckets = _dtrace_strbuckets; 1159 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *)); 1160 dtp->dt_provbuckets = _dtrace_strbuckets; 1161 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *)); 1162 dt_proc_hash_create(dtp); 1163 dtp->dt_vmax = DT_VERS_LATEST; 1164 dtp->dt_cpp_path = strdup(_dtrace_defcpp); 1165 dtp->dt_cpp_argv = malloc(sizeof (char *)); 1166 dtp->dt_cpp_argc = 1; 1167 dtp->dt_cpp_args = 1; 1168 dtp->dt_ld_path = strdup(_dtrace_defld); 1169 dtp->dt_provmod = provmod; 1170 dtp->dt_vector = vector; 1171 dtp->dt_varg = arg; 1172 dt_dof_init(dtp); 1173 (void) uname(&dtp->dt_uts); 1174 1175 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL || 1176 dtp->dt_procs == NULL || dtp->dt_ld_path == NULL || 1177 dtp->dt_cpp_path == NULL || dtp->dt_cpp_argv == NULL) 1178 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1179 1180 for (i = 0; i < DTRACEOPT_MAX; i++) 1181 dtp->dt_options[i] = DTRACEOPT_UNSET; 1182 1183 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path); 1184 1185#if defined(sun) 1186 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u", 1187 (uint_t)(sizeof (void *) * NBBY)); 1188 1189 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s", 1190 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)), 1191 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2))); 1192 1193 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL || 1194 dt_cpp_add_arg(dtp, "-D__unix") == NULL || 1195 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL || 1196 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL || 1197 dt_cpp_add_arg(dtp, isadef) == NULL || 1198 dt_cpp_add_arg(dtp, utsdef) == NULL) 1199 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1200#endif 1201 1202 if (flags & DTRACE_O_NODEV) 1203 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf)); 1204 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0) 1205 return (set_open_errno(dtp, errp, errno)); 1206 1207 if (flags & DTRACE_O_LP64) 1208 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64; 1209 else if (flags & DTRACE_O_ILP32) 1210 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32; 1211 1212#ifdef __sparc 1213 /* 1214 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h> 1215 * and __sparcv9 is defined if we are doing a 64-bit compile. 1216 */ 1217 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL) 1218 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1219 1220 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 && 1221 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL) 1222 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1223#endif 1224 1225#if defined(sun) 1226#ifdef __x86 1227 /* 1228 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit 1229 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC, 1230 * they are defined exclusive of one another (see PSARC 2004/619). 1231 */ 1232 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 1233 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL) 1234 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1235 } else { 1236 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL) 1237 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1238 } 1239#endif 1240#else 1241#if defined(__amd64__) || defined(__i386__) 1242 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 1243 if (dt_cpp_add_arg(dtp, "-m64") == NULL) 1244 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1245 } else { 1246 if (dt_cpp_add_arg(dtp, "-m32") == NULL) 1247 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1248 } 1249#endif 1250#endif 1251 1252 if (dtp->dt_conf.dtc_difversion < DIF_VERSION) 1253 return (set_open_errno(dtp, errp, EDT_DIFVERS)); 1254 1255 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) 1256 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32)); 1257 else 1258 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64)); 1259 1260 /* 1261 * On FreeBSD the kernel module name can't be hard-coded. The 1262 * 'kern.bootfile' sysctl value tells us exactly which file is being 1263 * used as the kernel. 1264 */ 1265#if !defined(sun) 1266 { 1267 char bootfile[MAXPATHLEN]; 1268 char *p; 1269 int i; 1270 size_t len = sizeof(bootfile); 1271 1272 /* This call shouldn't fail, but use a default just in case. */ 1273 if (sysctlbyname("kern.bootfile", bootfile, &len, NULL, 0) != 0) 1274 strlcpy(bootfile, "kernel", sizeof(bootfile)); 1275 1276 if ((p = strrchr(bootfile, '/')) != NULL) 1277 p++; 1278 else 1279 p = bootfile; 1280 1281 /* 1282 * Format the global variables based on the kernel module name. 1283 */ 1284 snprintf(curthread_str, sizeof(curthread_str), "%s`struct thread *",p); 1285 snprintf(intmtx_str, sizeof(intmtx_str), "int(%s`struct mtx *)",p); 1286 snprintf(threadmtx_str, sizeof(threadmtx_str), "struct thread *(%s`struct mtx *)",p); 1287 snprintf(rwlock_str, sizeof(rwlock_str), "int(%s`struct rwlock *)",p); 1288 snprintf(sxlock_str, sizeof(sxlock_str), "int(%s`struct sxlock *)",p); 1289 } 1290#endif 1291 1292 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX); 1293 dtp->dt_aggs = dt_idhash_create("aggregation", NULL, 1294 DTRACE_AGGVARIDNONE + 1, UINT_MAX); 1295 1296 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals, 1297 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1298 1299 dtp->dt_tls = dt_idhash_create("thread local", NULL, 1300 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1301 1302 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL || 1303 dtp->dt_globals == NULL || dtp->dt_tls == NULL) 1304 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1305 1306 /* 1307 * Populate the dt_macros identifier hash table by hand: we can't use 1308 * the dt_idhash_populate() mechanism because we're not yet compiling 1309 * and dtrace_update() needs to immediately reference these idents. 1310 */ 1311 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) { 1312 if (dt_idhash_insert(dtp->dt_macros, idp->di_name, 1313 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr, 1314 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw, 1315 idp->di_iarg, 0) == NULL) 1316 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1317 } 1318 1319 /* 1320 * Update the module list using /system/object and load the values for 1321 * the macro variable definitions according to the current process. 1322 */ 1323 dtrace_update(dtp); 1324 1325 /* 1326 * Select the intrinsics and typedefs we want based on the data model. 1327 * The intrinsics are under "C". The typedefs are added under "D". 1328 */ 1329 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) { 1330 dinp = _dtrace_intrinsics_32; 1331 dtyp = _dtrace_typedefs_32; 1332 } else { 1333 dinp = _dtrace_intrinsics_64; 1334 dtyp = _dtrace_typedefs_64; 1335 } 1336 1337 /* 1338 * Create a dynamic CTF container under the "C" scope for intrinsic 1339 * types and types defined in ANSI-C header files that are included. 1340 */ 1341 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL) 1342 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1343 1344 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1345 return (set_open_errno(dtp, errp, EDT_CTF)); 1346 1347 dt_dprintf("created CTF container for %s (%p)\n", 1348 dmp->dm_name, (void *)dmp->dm_ctfp); 1349 1350 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1351 ctf_setspecific(dmp->dm_ctfp, dmp); 1352 1353 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1354 dmp->dm_modid = -1; /* no module ID */ 1355 1356 /* 1357 * Fill the dynamic "C" CTF container with all of the intrinsic 1358 * integer and floating-point types appropriate for this data model. 1359 */ 1360 for (; dinp->din_name != NULL; dinp++) { 1361 if (dinp->din_kind == CTF_K_INTEGER) { 1362 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT, 1363 dinp->din_name, &dinp->din_data); 1364 } else { 1365 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT, 1366 dinp->din_name, &dinp->din_data); 1367 } 1368 1369 if (err == CTF_ERR) { 1370 dt_dprintf("failed to add %s to C container: %s\n", 1371 dinp->din_name, ctf_errmsg( 1372 ctf_errno(dmp->dm_ctfp))); 1373 return (set_open_errno(dtp, errp, EDT_CTF)); 1374 } 1375 } 1376 1377 if (ctf_update(dmp->dm_ctfp) != 0) { 1378 dt_dprintf("failed to update C container: %s\n", 1379 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1380 return (set_open_errno(dtp, errp, EDT_CTF)); 1381 } 1382 1383 /* 1384 * Add intrinsic pointer types that are needed to initialize printf 1385 * format dictionary types (see table in dt_printf.c). 1386 */ 1387 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1388 ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1389 1390 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1391 ctf_lookup_by_name(dmp->dm_ctfp, "char")); 1392 1393 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1394 ctf_lookup_by_name(dmp->dm_ctfp, "int")); 1395 1396 if (ctf_update(dmp->dm_ctfp) != 0) { 1397 dt_dprintf("failed to update C container: %s\n", 1398 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1399 return (set_open_errno(dtp, errp, EDT_CTF)); 1400 } 1401 1402 /* 1403 * Create a dynamic CTF container under the "D" scope for types that 1404 * are defined by the D program itself or on-the-fly by the D compiler. 1405 * The "D" CTF container is a child of the "C" CTF container. 1406 */ 1407 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL) 1408 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1409 1410 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1411 return (set_open_errno(dtp, errp, EDT_CTF)); 1412 1413 dt_dprintf("created CTF container for %s (%p)\n", 1414 dmp->dm_name, (void *)dmp->dm_ctfp); 1415 1416 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1417 ctf_setspecific(dmp->dm_ctfp, dmp); 1418 1419 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1420 dmp->dm_modid = -1; /* no module ID */ 1421 1422 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) { 1423 dt_dprintf("failed to import D parent container: %s\n", 1424 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1425 return (set_open_errno(dtp, errp, EDT_CTF)); 1426 } 1427 1428 /* 1429 * Fill the dynamic "D" CTF container with all of the built-in typedefs 1430 * that we need to use for our D variable and function definitions. 1431 * This ensures that basic inttypes.h names are always available to us. 1432 */ 1433 for (; dtyp->dty_src != NULL; dtyp++) { 1434 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1435 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp, 1436 dtyp->dty_src)) == CTF_ERR) { 1437 dt_dprintf("failed to add typedef %s %s to D " 1438 "container: %s", dtyp->dty_src, dtyp->dty_dst, 1439 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1440 return (set_open_errno(dtp, errp, EDT_CTF)); 1441 } 1442 } 1443 1444 /* 1445 * Insert a CTF ID corresponding to a pointer to a type of kind 1446 * CTF_K_FUNCTION we can use in the compiler for function pointers. 1447 * CTF treats all function pointers as "int (*)()" so we only need one. 1448 */ 1449 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int"); 1450 ctc.ctc_argc = 0; 1451 ctc.ctc_flags = 0; 1452 1453 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp, 1454 CTF_ADD_ROOT, &ctc, NULL); 1455 1456 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp, 1457 CTF_ADD_ROOT, dtp->dt_type_func); 1458 1459 /* 1460 * We also insert CTF definitions for the special D intrinsic types 1461 * string and <DYN> into the D container. The string type is added 1462 * as a typedef of char[n]. The <DYN> type is an alias for void. 1463 * We compare types to these special CTF ids throughout the compiler. 1464 */ 1465 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char"); 1466 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long"); 1467 ctr.ctr_nelems = _dtrace_strsize; 1468 1469 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1470 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr)); 1471 1472 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1473 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1474 1475 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1476 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1477 1478 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1479 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1480 1481 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1482 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1483 1484 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR || 1485 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR || 1486 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR || 1487 dtp->dt_type_usymaddr == CTF_ERR) { 1488 dt_dprintf("failed to add intrinsic to D container: %s\n", 1489 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1490 return (set_open_errno(dtp, errp, EDT_CTF)); 1491 } 1492 1493 if (ctf_update(dmp->dm_ctfp) != 0) { 1494 dt_dprintf("failed update D container: %s\n", 1495 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1496 return (set_open_errno(dtp, errp, EDT_CTF)); 1497 } 1498 1499 /* 1500 * Initialize the integer description table used to convert integer 1501 * constants to the appropriate types. Refer to the comments above 1502 * dt_node_int() for a complete description of how this table is used. 1503 */ 1504 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) { 1505 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY, 1506 dtp->dt_ints[i].did_name, &dtt) != 0) { 1507 dt_dprintf("failed to lookup integer type %s: %s\n", 1508 dtp->dt_ints[i].did_name, 1509 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1510 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1511 } 1512 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp; 1513 dtp->dt_ints[i].did_type = dtt.dtt_type; 1514 } 1515 1516 /* 1517 * Now that we've created the "C" and "D" containers, move them to the 1518 * start of the module list so that these types and symbols are found 1519 * first (for stability) when iterating through the module list. 1520 */ 1521 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs); 1522 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs); 1523 1524 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs); 1525 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs); 1526 1527 if (dt_pfdict_create(dtp) == -1) 1528 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1529 1530 /* 1531 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default 1532 * because without /dev/dtrace open, we will not be able to load the 1533 * names and attributes of any providers or probes from the kernel. 1534 */ 1535 if (flags & DTRACE_O_NODEV) 1536 dtp->dt_cflags |= DTRACE_C_ZDEFS; 1537 1538 /* 1539 * Load hard-wired inlines into the definition cache by calling the 1540 * compiler on the raw definition string defined above. 1541 */ 1542 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire, 1543 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) { 1544 dt_dprintf("failed to load hard-wired definitions: %s\n", 1545 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1546 return (set_open_errno(dtp, errp, EDT_HARDWIRE)); 1547 } 1548 1549 dt_program_destroy(dtp, pgp); 1550 1551 /* 1552 * Set up the default DTrace library path. Once set, the next call to 1553 * dt_compile() will compile all the libraries. We intentionally defer 1554 * library processing to improve overhead for clients that don't ever 1555 * compile, and to provide better error reporting (because the full 1556 * reporting of compiler errors requires dtrace_open() to succeed). 1557 */ 1558 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0) 1559 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1560 1561 return (dtp); 1562} 1563 1564dtrace_hdl_t * 1565dtrace_open(int version, int flags, int *errp) 1566{ 1567 return (dt_vopen(version, flags, errp, NULL, NULL)); 1568} 1569 1570dtrace_hdl_t * 1571dtrace_vopen(int version, int flags, int *errp, 1572 const dtrace_vector_t *vector, void *arg) 1573{ 1574 return (dt_vopen(version, flags, errp, vector, arg)); 1575} 1576 1577void 1578dtrace_close(dtrace_hdl_t *dtp) 1579{ 1580 dt_ident_t *idp, *ndp; 1581 dt_module_t *dmp; 1582 dt_provider_t *pvp; 1583 dtrace_prog_t *pgp; 1584 dt_xlator_t *dxp; 1585 dt_dirpath_t *dirp; 1586 int i; 1587 1588 if (dtp->dt_procs != NULL) 1589 dt_proc_hash_destroy(dtp); 1590 1591 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL) 1592 dt_program_destroy(dtp, pgp); 1593 1594 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL) 1595 dt_xlator_destroy(dtp, dxp); 1596 1597 dt_free(dtp, dtp->dt_xlatormap); 1598 1599 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) { 1600 ndp = idp->di_next; 1601 dt_ident_destroy(idp); 1602 } 1603 1604 if (dtp->dt_macros != NULL) 1605 dt_idhash_destroy(dtp->dt_macros); 1606 if (dtp->dt_aggs != NULL) 1607 dt_idhash_destroy(dtp->dt_aggs); 1608 if (dtp->dt_globals != NULL) 1609 dt_idhash_destroy(dtp->dt_globals); 1610 if (dtp->dt_tls != NULL) 1611 dt_idhash_destroy(dtp->dt_tls); 1612 1613 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL) 1614 dt_module_destroy(dtp, dmp); 1615 1616 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL) 1617 dt_provider_destroy(dtp, pvp); 1618 1619 if (dtp->dt_fd != -1) 1620 (void) close(dtp->dt_fd); 1621 if (dtp->dt_ftfd != -1) 1622 (void) close(dtp->dt_ftfd); 1623 if (dtp->dt_cdefs_fd != -1) 1624 (void) close(dtp->dt_cdefs_fd); 1625 if (dtp->dt_ddefs_fd != -1) 1626 (void) close(dtp->dt_ddefs_fd); 1627#if defined(sun) 1628 if (dtp->dt_stdout_fd != -1) 1629 (void) close(dtp->dt_stdout_fd); 1630#else 1631 if (dtp->dt_freopen_fp != NULL) 1632 (void) fclose(dtp->dt_freopen_fp); 1633#endif 1634 1635 dt_epid_destroy(dtp); 1636 dt_aggid_destroy(dtp); 1637 dt_format_destroy(dtp); 1638 dt_strdata_destroy(dtp); 1639 dt_buffered_destroy(dtp); 1640 dt_aggregate_destroy(dtp); 1641 dt_pfdict_destroy(dtp); 1642 dt_provmod_destroy(&dtp->dt_provmod); 1643 dt_dof_fini(dtp); 1644 1645 for (i = 1; i < dtp->dt_cpp_argc; i++) 1646 free(dtp->dt_cpp_argv[i]); 1647 1648 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) { 1649 dt_list_delete(&dtp->dt_lib_path, dirp); 1650 free(dirp->dir_path); 1651 free(dirp); 1652 } 1653 1654 free(dtp->dt_cpp_argv); 1655 free(dtp->dt_cpp_path); 1656 free(dtp->dt_ld_path); 1657 1658 free(dtp->dt_mods); 1659 free(dtp->dt_provs); 1660 free(dtp); 1661} 1662 1663int 1664dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods) 1665{ 1666 dt_provmod_t *prov; 1667 int i = 0; 1668 1669 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) { 1670 if (i < nmods) 1671 mods[i] = prov->dp_name; 1672 } 1673 1674 return (i); 1675} 1676 1677int 1678dtrace_ctlfd(dtrace_hdl_t *dtp) 1679{ 1680 return (dtp->dt_fd); 1681} 1682