dt_open.c revision 249856
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) 2011 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 Solaris. 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_LATEST DT_VERS_1_9 125#define DT_VERS_STRING "Sun D 1.9" 126 127const dt_version_t _dtrace_versions[] = { 128 DT_VERS_1_0, /* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */ 129 DT_VERS_1_1, /* D API 1.1.0 Solaris Express 6/05 */ 130 DT_VERS_1_2, /* D API 1.2.0 Solaris 10 Update 1 */ 131 DT_VERS_1_2_1, /* D API 1.2.1 Solaris Express 4/06 */ 132 DT_VERS_1_2_2, /* D API 1.2.2 Solaris Express 6/06 */ 133 DT_VERS_1_3, /* D API 1.3 Solaris Express 10/06 */ 134 DT_VERS_1_4, /* D API 1.4 Solaris Express 2/07 */ 135 DT_VERS_1_4_1, /* D API 1.4.1 Solaris Express 4/07 */ 136 DT_VERS_1_5, /* D API 1.5 Solaris Express 7/07 */ 137 DT_VERS_1_6, /* D API 1.6 */ 138 DT_VERS_1_6_1, /* D API 1.6.1 */ 139 DT_VERS_1_6_2, /* D API 1.6.2 */ 140 DT_VERS_1_6_3, /* D API 1.6.3 */ 141 DT_VERS_1_7, /* D API 1.7 */ 142 DT_VERS_1_7_1, /* D API 1.7.1 */ 143 DT_VERS_1_8, /* D API 1.8 */ 144 DT_VERS_1_8_1, /* D API 1.8.1 */ 145 DT_VERS_1_9, /* D API 1.9 */ 146 0 147}; 148 149/* 150 * Global variables that are formatted on FreeBSD based on the kernel file name. 151 */ 152#if !defined(sun) 153static char curthread_str[MAXPATHLEN]; 154static char intmtx_str[MAXPATHLEN]; 155static char threadmtx_str[MAXPATHLEN]; 156static char rwlock_str[MAXPATHLEN]; 157static char sxlock_str[MAXPATHLEN]; 158#endif 159 160/* 161 * Table of global identifiers. This is used to populate the global identifier 162 * hash when a new dtrace client open occurs. For more info see dt_ident.h. 163 * The global identifiers that represent functions use the dt_idops_func ops 164 * and specify the private data pointer as a prototype string which is parsed 165 * when the identifier is first encountered. These prototypes look like ANSI 166 * C function prototypes except that the special symbol "@" can be used as a 167 * wildcard to represent a single parameter of any type (i.e. any dt_node_t). 168 * The standard "..." notation can also be used to represent varargs. An empty 169 * parameter list is taken to mean void (that is, no arguments are permitted). 170 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional 171 * argument. 172 */ 173static const dt_ident_t _dtrace_globals[] = { 174{ "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0, 175 &dt_idops_func, "void *(size_t)" }, 176{ "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0, 177 &dt_idops_type, "int64_t" }, 178{ "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0, 179 &dt_idops_type, "int64_t" }, 180{ "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0, 181 &dt_idops_type, "int64_t" }, 182{ "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0, 183 &dt_idops_type, "int64_t" }, 184{ "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0, 185 &dt_idops_type, "int64_t" }, 186{ "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0, 187 &dt_idops_type, "int64_t" }, 188{ "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0, 189 &dt_idops_type, "int64_t" }, 190{ "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0, 191 &dt_idops_type, "int64_t" }, 192{ "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0, 193 &dt_idops_type, "int64_t" }, 194{ "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0, 195 &dt_idops_type, "int64_t" }, 196{ "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0, 197 &dt_idops_args, NULL }, 198{ "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0, 199 &dt_idops_func, "void(@)" }, 200{ "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0, 201 &dt_idops_func, "string(const char *)" }, 202{ "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0, 203 &dt_idops_func, "void(void *, void *, size_t)" }, 204{ "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT, 205 DT_ATTR_STABCMN, DT_VERS_1_0, 206 &dt_idops_func, "void()" }, 207{ "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0, 208 &dt_idops_type, "uintptr_t" }, 209{ "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0, 210 &dt_idops_func, "void(int)" }, 211{ "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN, 212 DT_VERS_1_0, &dt_idops_func, "string(const char *)" }, 213{ "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0, 214 &dt_idops_func, "void(...)" }, 215{ "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0, 216 &dt_idops_func, "void(int)" }, 217{ "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0, 218 &dt_idops_func, "void *(uintptr_t, size_t)" }, 219{ "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR, 220 DT_ATTR_STABCMN, DT_VERS_1_0, 221 &dt_idops_func, "string(uintptr_t, [size_t])" }, 222{ "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN, 223 DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" }, 224{ "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0, 225 &dt_idops_func, "void(void *, uintptr_t, size_t)" }, 226{ "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR, 227 DT_ATTR_STABCMN, DT_VERS_1_0, 228 &dt_idops_func, "void(char *, uintptr_t, size_t)" }, 229{ "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0, 230 &dt_idops_func, "void()" }, 231{ "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD, 232 { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE, 233 DTRACE_CLASS_COMMON }, DT_VERS_1_0, 234#if defined(sun) 235 &dt_idops_type, "genunix`kthread_t *" }, 236#else 237 &dt_idops_type, curthread_str }, 238#endif 239{ "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME, 240 DT_ATTR_EVOLCMN, DT_VERS_1_0, 241 &dt_idops_func, "string(void *, int64_t)" }, 242{ "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN, 243 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 244{ "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0, 245 &dt_idops_func, "string(const char *)" }, 246{ "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0, 247 &dt_idops_func, "void(int)" }, 248{ "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0, 249 &dt_idops_type, "uint_t" }, 250{ "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0, 251 &dt_idops_type, "int" }, 252{ "execargs", DT_IDENT_SCALAR, 0, DIF_VAR_EXECARGS, 253 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 254{ "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME, 255 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 256{ "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0, 257 &dt_idops_func, "void(int)" }, 258{ "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN, 259 DT_VERS_1_1, &dt_idops_func, "void(@, ...)" }, 260{ "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN, 261 DT_VERS_1_0, &dt_idops_func, "void()" }, 262{ "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 263 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 264{ "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR, 265 DT_ATTR_EVOLCMN, DT_VERS_1_0, 266 &dt_idops_func, "genunix`major_t(genunix`dev_t)" }, 267{ "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR, 268 DT_ATTR_EVOLCMN, DT_VERS_1_0, 269 &dt_idops_func, "genunix`minor_t(genunix`dev_t)" }, 270{ "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 271 &dt_idops_func, "uint32_t(uint32_t)" }, 272{ "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 273 &dt_idops_func, "uint64_t(uint64_t)" }, 274{ "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 275 &dt_idops_func, "uint16_t(uint16_t)" }, 276{ "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0, 277 &dt_idops_type, "gid_t" }, 278{ "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0, 279 &dt_idops_type, "uint_t" }, 280{ "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 281 &dt_idops_func, "int(const char *, const char *, [int])" }, 282{ "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN, 283#if defined(sun) 284 DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" }, 285#else 286 DT_VERS_1_5, &dt_idops_func, "string(in_addr_t *)" }, 287#endif 288{ "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN, 289#if defined(sun) 290 DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" }, 291#else 292 DT_VERS_1_5, &dt_idops_func, "string(struct in6_addr *)" }, 293#endif 294{ "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN, 295 DT_VERS_1_5, &dt_idops_func, "string(int, void *)" }, 296{ "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0, 297 &dt_idops_type, "uint_t" }, 298{ "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 299 &dt_idops_func, "stack(...)" }, 300{ "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0, 301 &dt_idops_func, "string(int64_t, [int])" }, 302{ "llquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LLQUANTIZE, DT_ATTR_STABCMN, 303 DT_VERS_1_7, &dt_idops_func, 304 "void(@, int32_t, int32_t, int32_t, int32_t, ...)" }, 305{ "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE, 306 DT_ATTR_STABCMN, DT_VERS_1_0, 307 &dt_idops_func, "void(@, int32_t, int32_t, ...)" }, 308{ "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0, 309 &dt_idops_func, "void(@)" }, 310{ "memref", DT_IDENT_FUNC, 0, DIF_SUBR_MEMREF, DT_ATTR_STABCMN, DT_VERS_1_1, 311 &dt_idops_func, "uintptr_t *(void *, size_t)" }, 312{ "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0, 313 &dt_idops_func, "void(@)" }, 314{ "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN, 315 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 316{ "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE, 317 DT_ATTR_STABCMN, DT_VERS_1_0, 318 &dt_idops_func, "size_t(mblk_t *)" }, 319{ "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE, 320 DT_ATTR_STABCMN, DT_VERS_1_0, 321 &dt_idops_func, "size_t(mblk_t *)" }, 322#if defined(sun) 323{ "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 324 DT_ATTR_EVOLCMN, DT_VERS_1_0, 325 &dt_idops_func, "int(genunix`kmutex_t *)" }, 326{ "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 327 DT_ATTR_EVOLCMN, DT_VERS_1_0, 328 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" }, 329{ "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 330 DT_ATTR_EVOLCMN, DT_VERS_1_0, 331 &dt_idops_func, "int(genunix`kmutex_t *)" }, 332{ "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 333 DT_ATTR_EVOLCMN, DT_VERS_1_0, 334 &dt_idops_func, "int(genunix`kmutex_t *)" }, 335#else 336{ "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 337 DT_ATTR_EVOLCMN, DT_VERS_1_0, 338 &dt_idops_func, intmtx_str }, 339{ "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 340 DT_ATTR_EVOLCMN, DT_VERS_1_0, 341 &dt_idops_func, threadmtx_str }, 342{ "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 343 DT_ATTR_EVOLCMN, DT_VERS_1_0, 344 &dt_idops_func, intmtx_str }, 345{ "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 346 DT_ATTR_EVOLCMN, DT_VERS_1_0, 347 &dt_idops_func, intmtx_str }, 348#endif 349{ "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 350 &dt_idops_func, "uint32_t(uint32_t)" }, 351{ "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 352 &dt_idops_func, "uint64_t(uint64_t)" }, 353{ "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 354 &dt_idops_func, "uint16_t(uint16_t)" }, 355{ "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN, 356 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 357{ "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0, 358 &dt_idops_func, "void()" }, 359{ "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0, 360 &dt_idops_type, "pid_t" }, 361{ "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0, 362 &dt_idops_type, "pid_t" }, 363{ "print", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINT, DT_ATTR_STABCMN, DT_VERS_1_9, 364 &dt_idops_func, "void(@)" }, 365{ "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0, 366 &dt_idops_func, "void(@, ...)" }, 367{ "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0, 368 &dt_idops_func, "void(@, ...)" }, 369{ "printm", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTM, DT_ATTR_STABCMN, DT_VERS_1_0, 370 &dt_idops_func, "void(size_t, uintptr_t *)" }, 371{ "printt", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTT, DT_ATTR_STABCMN, DT_VERS_1_0, 372 &dt_idops_func, "void(size_t, uintptr_t *)" }, 373{ "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC, 374 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 375{ "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD, 376 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 377{ "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME, 378 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 379{ "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV, 380 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 381{ "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF, 382 DT_ATTR_STABCMN, DT_VERS_1_0, 383 &dt_idops_func, "int(pid_t)" }, 384{ "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE, 385 DT_ATTR_STABCMN, DT_VERS_1_0, 386 &dt_idops_func, "void(@, ...)" }, 387{ "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0, 388 &dt_idops_func, "void(int)" }, 389{ "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0, 390 &dt_idops_func, "int()" }, 391{ "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 392 &dt_idops_func, "int(const char *, const char *, [int])" }, 393#if defined(sun) 394{ "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 395 DT_ATTR_EVOLCMN, DT_VERS_1_0, 396 &dt_idops_func, "int(genunix`krwlock_t *)" }, 397{ "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 398 DT_ATTR_EVOLCMN, DT_VERS_1_0, 399 &dt_idops_func, "int(genunix`krwlock_t *)" }, 400{ "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 401 DT_ATTR_EVOLCMN, DT_VERS_1_0, 402 &dt_idops_func, "int(genunix`krwlock_t *)" }, 403#else 404{ "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 405 DT_ATTR_EVOLCMN, DT_VERS_1_0, 406 &dt_idops_func, rwlock_str }, 407{ "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 408 DT_ATTR_EVOLCMN, DT_VERS_1_0, 409 &dt_idops_func, rwlock_str }, 410{ "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 411 DT_ATTR_EVOLCMN, DT_VERS_1_0, 412 &dt_idops_func, rwlock_str }, 413#endif 414{ "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 415 &dt_idops_type, "void" }, 416{ "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN, 417 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" }, 418{ "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE, 419 DT_ATTR_STABCMN, DT_VERS_1_0, 420 &dt_idops_func, "void(int)" }, 421{ "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION, 422 DT_ATTR_STABCMN, DT_VERS_1_0, 423 &dt_idops_func, "int()" }, 424{ "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0, 425 &dt_idops_func, "stack(...)" }, 426{ "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH, 427 DT_ATTR_STABCMN, DT_VERS_1_0, 428 &dt_idops_type, "uint32_t" }, 429{ "stddev", DT_IDENT_AGGFUNC, 0, DTRACEAGG_STDDEV, DT_ATTR_STABCMN, 430 DT_VERS_1_6, &dt_idops_func, "void(@)" }, 431{ "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0, 432 &dt_idops_func, "void()" }, 433{ "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 434 &dt_idops_func, "string(const char *, char)" }, 435{ "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0, 436 &dt_idops_func, "size_t(const char *)" }, 437{ "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0, 438 &dt_idops_func, "string(const char *, const char *)" }, 439{ "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 440 &dt_idops_func, "string(const char *, char)" }, 441{ "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 442 &dt_idops_func, "string(const char *, const char *)" }, 443{ "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1, 444 &dt_idops_func, "string(const char *, const char *)" }, 445{ "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 446 &dt_idops_func, "string(const char *, int, [int])" }, 447{ "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0, 448 &dt_idops_func, "void(@)" }, 449#if !defined(sun) 450{ "sx_isexclusive", DT_IDENT_FUNC, 0, DIF_SUBR_SX_ISEXCLUSIVE, 451 DT_ATTR_EVOLCMN, DT_VERS_1_0, 452 &dt_idops_func, sxlock_str }, 453{ "sx_shared_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_SHARED_HELD, 454 DT_ATTR_EVOLCMN, DT_VERS_1_0, 455 &dt_idops_func, sxlock_str }, 456{ "sx_exclusive_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_EXCLUSIVE_HELD, 457 DT_ATTR_EVOLCMN, DT_VERS_1_0, 458 &dt_idops_func, sxlock_str }, 459#endif 460{ "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 461 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 462{ "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0, 463 &dt_idops_func, "void(@, ...)" }, 464{ "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 465 &dt_idops_type, "void" }, 466{ "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0, 467 &dt_idops_type, "id_t" }, 468{ "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP, 469 DT_ATTR_STABCMN, DT_VERS_1_0, 470 &dt_idops_type, "uint64_t" }, 471{ "tolower", DT_IDENT_FUNC, 0, DIF_SUBR_TOLOWER, DT_ATTR_STABCMN, DT_VERS_1_8, 472 &dt_idops_func, "string(const char *)" }, 473{ "toupper", DT_IDENT_FUNC, 0, DIF_SUBR_TOUPPER, DT_ATTR_STABCMN, DT_VERS_1_8, 474 &dt_idops_func, "string(const char *)" }, 475{ "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0, 476 &dt_idops_func, "void(@)" }, 477{ "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM, 478 DT_ATTR_STABCMN, DT_VERS_1_0, 479 &dt_idops_func, "void(@, size_t, ...)" }, 480{ "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN, 481 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 482{ "typeref", DT_IDENT_FUNC, 0, DIF_SUBR_TYPEREF, DT_ATTR_STABCMN, DT_VERS_1_1, 483 &dt_idops_func, "uintptr_t *(void *, size_t, string, size_t)" }, 484#if defined(sun) 485{ "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN, 486 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 487#endif 488{ "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN, 489 DT_VERS_1_2, &dt_idops_type, "uint64_t" }, 490#if defined(sun) 491{ "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 492 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 493#endif 494{ "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0, 495 &dt_idops_type, "uid_t" }, 496#if defined(sun) 497{ "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN, 498 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 499#endif 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#if defined(sun) 508{ "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 509 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 510#endif 511{ "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP, 512 DT_ATTR_STABCMN, DT_VERS_1_0, 513 &dt_idops_type, "uint64_t" }, 514{ "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP, 515 DT_ATTR_STABCMN, DT_VERS_1_0, 516 &dt_idops_type, "int64_t" }, 517#if defined(sun) 518{ "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME, 519 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 520#endif 521 522#if !defined(sun) 523{ "cpu", DT_IDENT_SCALAR, 0, DIF_VAR_CPU, 524 DT_ATTR_STABCMN, DT_VERS_1_6_3, &dt_idops_type, "int" }, 525#endif 526 527{ NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL } 528}; 529 530/* 531 * Tables of ILP32 intrinsic integer and floating-point type templates to use 532 * to populate the dynamic "C" CTF type container. 533 */ 534static const dt_intrinsic_t _dtrace_intrinsics_32[] = { 535{ "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 536{ "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 537{ "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 538{ "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 539{ "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 540{ "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 541{ "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 542{ "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 543{ "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 544{ "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 545{ "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 546{ "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 547{ "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 548{ "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 549{ "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 550{ "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 551{ "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER }, 552{ "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 553{ "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 554{ "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 555{ "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 556{ "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 557{ "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 558{ "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 559{ "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 560{ "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 561{ "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 562{ "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 563{ NULL, { 0, 0, 0 }, 0 } 564}; 565 566/* 567 * Tables of LP64 intrinsic integer and floating-point type templates to use 568 * to populate the dynamic "C" CTF type container. 569 */ 570static const dt_intrinsic_t _dtrace_intrinsics_64[] = { 571{ "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 572{ "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 573{ "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 574{ "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 575{ "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 576{ "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 577{ "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 578{ "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 579{ "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 580{ "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 581{ "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 582{ "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 583{ "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 584{ "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 585{ "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 586{ "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 587{ "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER }, 588{ "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 589{ "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 590{ "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 591{ "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 592{ "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 593{ "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 594{ "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 595{ "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 596{ "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 597{ "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 598{ "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 599{ NULL, { 0, 0, 0 }, 0 } 600}; 601 602/* 603 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container. 604 * These aliases ensure that D definitions can use typical <sys/types.h> names. 605 */ 606static const dt_typedef_t _dtrace_typedefs_32[] = { 607{ "char", "int8_t" }, 608{ "short", "int16_t" }, 609{ "int", "int32_t" }, 610{ "long long", "int64_t" }, 611{ "int", "intptr_t" }, 612{ "int", "ssize_t" }, 613{ "unsigned char", "uint8_t" }, 614{ "unsigned short", "uint16_t" }, 615{ "unsigned", "uint32_t" }, 616{ "unsigned long long", "uint64_t" }, 617{ "unsigned char", "uchar_t" }, 618{ "unsigned short", "ushort_t" }, 619{ "unsigned", "uint_t" }, 620{ "unsigned long", "ulong_t" }, 621{ "unsigned long long", "u_longlong_t" }, 622{ "int", "ptrdiff_t" }, 623{ "unsigned", "uintptr_t" }, 624{ "unsigned", "size_t" }, 625{ "long", "id_t" }, 626{ "long", "pid_t" }, 627{ NULL, NULL } 628}; 629 630/* 631 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container. 632 * These aliases ensure that D definitions can use typical <sys/types.h> names. 633 */ 634static const dt_typedef_t _dtrace_typedefs_64[] = { 635{ "char", "int8_t" }, 636{ "short", "int16_t" }, 637{ "int", "int32_t" }, 638{ "long", "int64_t" }, 639{ "long", "intptr_t" }, 640{ "long", "ssize_t" }, 641{ "unsigned char", "uint8_t" }, 642{ "unsigned short", "uint16_t" }, 643{ "unsigned", "uint32_t" }, 644{ "unsigned long", "uint64_t" }, 645{ "unsigned char", "uchar_t" }, 646{ "unsigned short", "ushort_t" }, 647{ "unsigned", "uint_t" }, 648{ "unsigned long", "ulong_t" }, 649{ "unsigned long long", "u_longlong_t" }, 650{ "long", "ptrdiff_t" }, 651{ "unsigned long", "uintptr_t" }, 652{ "unsigned long", "size_t" }, 653{ "int", "id_t" }, 654{ "int", "pid_t" }, 655{ NULL, NULL } 656}; 657 658/* 659 * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[] 660 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 661 */ 662static const dt_intdesc_t _dtrace_ints_32[] = { 663{ "int", NULL, CTF_ERR, 0x7fffffffULL }, 664{ "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 665{ "long", NULL, CTF_ERR, 0x7fffffffULL }, 666{ "unsigned long", NULL, CTF_ERR, 0xffffffffULL }, 667{ "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 668{ "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 669}; 670 671/* 672 * Tables of LP64 integer type templates used to populate the dtp->dt_ints[] 673 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 674 */ 675static const dt_intdesc_t _dtrace_ints_64[] = { 676{ "int", NULL, CTF_ERR, 0x7fffffffULL }, 677{ "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 678{ "long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 679{ "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL }, 680{ "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 681{ "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 682}; 683 684/* 685 * Table of macro variable templates used to populate the macro identifier hash 686 * when a new dtrace client open occurs. Values are set by dtrace_update(). 687 */ 688static const dt_ident_t _dtrace_macros[] = { 689{ "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 690{ "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 691{ "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 692{ "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 693{ "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 694{ "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 695{ "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 696{ "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 697{ "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 698{ "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 699{ "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 700{ NULL, 0, 0, 0, { 0, 0, 0 }, 0 } 701}; 702 703/* 704 * Hard-wired definition string to be compiled and cached every time a new 705 * DTrace library handle is initialized. This string should only be used to 706 * contain definitions that should be present regardless of DTRACE_O_NOLIBS. 707 */ 708static const char _dtrace_hardwire[] = "\ 709inline long NULL = 0; \n\ 710#pragma D binding \"1.0\" NULL\n\ 711"; 712 713/* 714 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV. 715 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel. 716 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are 717 * relying on the fact that when running dtrace(1M), isaexec will invoke the 718 * binary with the same bitness as the kernel, which is what we want by default 719 * when generating our DIF. The user can override the choice using oflags. 720 */ 721static const dtrace_conf_t _dtrace_conf = { 722 DIF_VERSION, /* dtc_difversion */ 723 DIF_DIR_NREGS, /* dtc_difintregs */ 724 DIF_DTR_NREGS, /* dtc_diftupregs */ 725 CTF_MODEL_NATIVE /* dtc_ctfmodel */ 726}; 727 728const dtrace_attribute_t _dtrace_maxattr = { 729 DTRACE_STABILITY_MAX, 730 DTRACE_STABILITY_MAX, 731 DTRACE_CLASS_MAX 732}; 733 734const dtrace_attribute_t _dtrace_defattr = { 735 DTRACE_STABILITY_STABLE, 736 DTRACE_STABILITY_STABLE, 737 DTRACE_CLASS_COMMON 738}; 739 740const dtrace_attribute_t _dtrace_symattr = { 741 DTRACE_STABILITY_PRIVATE, 742 DTRACE_STABILITY_PRIVATE, 743 DTRACE_CLASS_UNKNOWN 744}; 745 746const dtrace_attribute_t _dtrace_typattr = { 747 DTRACE_STABILITY_PRIVATE, 748 DTRACE_STABILITY_PRIVATE, 749 DTRACE_CLASS_UNKNOWN 750}; 751 752const dtrace_attribute_t _dtrace_prvattr = { 753 DTRACE_STABILITY_PRIVATE, 754 DTRACE_STABILITY_PRIVATE, 755 DTRACE_CLASS_UNKNOWN 756}; 757 758const dtrace_pattr_t _dtrace_prvdesc = { 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{ DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 763{ DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 764}; 765 766#if defined(sun) 767const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */ 768const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */ 769#else 770const char *_dtrace_defcpp = "cpp"; /* default cpp(1) to invoke */ 771const char *_dtrace_defld = "ld"; /* default ld(1) to invoke */ 772#endif 773 774const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */ 775#if defined(sun) 776const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */ 777#else 778const char *_dtrace_provdir = "/dev/dtrace"; /* provider directory */ 779#endif 780 781int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */ 782int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */ 783uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */ 784uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */ 785uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */ 786uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */ 787size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */ 788int _dtrace_argmax = 32; /* default maximum number of probe arguments */ 789 790int _dtrace_debug = 0; /* debug messages enabled (off) */ 791const char *const _dtrace_version = DT_VERS_STRING; /* API version string */ 792int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */ 793 794typedef struct dt_fdlist { 795 int *df_fds; /* array of provider driver file descriptors */ 796 uint_t df_ents; /* number of valid elements in df_fds[] */ 797 uint_t df_size; /* size of df_fds[] */ 798} dt_fdlist_t; 799 800#if defined(sun) 801#pragma init(_dtrace_init) 802#else 803void _dtrace_init(void) __attribute__ ((constructor)); 804#endif 805void 806_dtrace_init(void) 807{ 808 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL; 809 810 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) { 811 if (rd_init(_dtrace_rdvers) == RD_OK) 812 break; 813 } 814#if defined(__i386__) 815 /* make long doubles 64 bits -sson */ 816 (void) fpsetprec(FP_PE); 817#endif 818} 819 820static dtrace_hdl_t * 821set_open_errno(dtrace_hdl_t *dtp, int *errp, int err) 822{ 823 if (dtp != NULL) 824 dtrace_close(dtp); 825 if (errp != NULL) 826 *errp = err; 827 return (NULL); 828} 829 830static void 831dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp) 832{ 833 dt_provmod_t *prov; 834 char path[PATH_MAX]; 835 int fd; 836#if defined(sun) 837 struct dirent *dp, *ep; 838 DIR *dirp; 839 840 if ((dirp = opendir(_dtrace_provdir)) == NULL) 841 return; /* failed to open directory; just skip it */ 842 843 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1); 844 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1); 845 846 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) { 847 if (dp->d_name[0] == '.') 848 continue; /* skip "." and ".." */ 849 850 if (dfp->df_ents == dfp->df_size) { 851 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 852 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 853 854 if (fds == NULL) 855 break; /* skip the rest of this directory */ 856 857 dfp->df_fds = fds; 858 dfp->df_size = size; 859 } 860 861 (void) snprintf(path, sizeof (path), "%s/%s", 862 _dtrace_provdir, dp->d_name); 863 864 if ((fd = open(path, O_RDONLY)) == -1) 865 continue; /* failed to open driver; just skip it */ 866 867 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 868 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) { 869 free(prov); 870 (void) close(fd); 871 break; 872 } 873 874 (void) strcpy(prov->dp_name, dp->d_name); 875 prov->dp_next = *provmod; 876 *provmod = prov; 877 878 dt_dprintf("opened provider %s\n", dp->d_name); 879 dfp->df_fds[dfp->df_ents++] = fd; 880 } 881 882 (void) closedir(dirp); 883#else 884 char *p; 885 char *p1; 886 char *p_providers = NULL; 887 int error; 888 size_t len = 0; 889 890 /* 891 * Loop to allocate/reallocate memory for the string of provider 892 * names and retry: 893 */ 894 while(1) { 895 /* 896 * The first time around, get the string length. The next time, 897 * hopefully we've allocated enough memory. 898 */ 899 error = sysctlbyname("debug.dtrace.providers",p_providers,&len,NULL,0); 900 if (len == 0) 901 /* No providers? That's strange. Where's dtrace? */ 902 break; 903 else if (error == 0 && p_providers == NULL) { 904 /* 905 * Allocate the initial memory which should be enough 906 * unless another provider loads before we have 907 * time to go back and get the string. 908 */ 909 if ((p_providers = malloc(len)) == NULL) 910 /* How do we report errors here? */ 911 return; 912 } else if (error == -1 && errno == ENOMEM) { 913 /* 914 * The current buffer isn't large enough, so 915 * reallocate it. We normally won't need to do this 916 * because providers aren't being loaded all the time. 917 */ 918 if ((p = realloc(p_providers,len)) == NULL) 919 /* How do we report errors here? */ 920 return; 921 p_providers = p; 922 } else 923 break; 924 } 925 926 /* Check if we got a string of provider names: */ 927 if (error == 0 && len > 0 && p_providers != NULL) { 928 p = p_providers; 929 930 /* 931 * Parse the string containing the space separated 932 * provider names. 933 */ 934 while ((p1 = strsep(&p," ")) != NULL) { 935 if (dfp->df_ents == dfp->df_size) { 936 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 937 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 938 939 if (fds == NULL) 940 break; 941 942 dfp->df_fds = fds; 943 dfp->df_size = size; 944 } 945 946 (void) snprintf(path, sizeof (path), "/dev/dtrace/%s", p1); 947 948 if ((fd = open(path, O_RDONLY)) == -1) 949 continue; /* failed to open driver; just skip it */ 950 951 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 952 (prov->dp_name = malloc(strlen(p1) + 1)) == NULL) { 953 free(prov); 954 (void) close(fd); 955 break; 956 } 957 958 (void) strcpy(prov->dp_name, p1); 959 prov->dp_next = *provmod; 960 *provmod = prov; 961 962 dt_dprintf("opened provider %s\n", p1); 963 dfp->df_fds[dfp->df_ents++] = fd; 964 } 965 } 966 if (p_providers != NULL) 967 free(p_providers); 968#endif 969} 970 971static void 972dt_provmod_destroy(dt_provmod_t **provmod) 973{ 974 dt_provmod_t *next, *current; 975 976 for (current = *provmod; current != NULL; current = next) { 977 next = current->dp_next; 978 free(current->dp_name); 979 free(current); 980 } 981 982 *provmod = NULL; 983} 984 985#if defined(sun) 986static const char * 987dt_get_sysinfo(int cmd, char *buf, size_t len) 988{ 989 ssize_t rv = sysinfo(cmd, buf, len); 990 char *p = buf; 991 992 if (rv < 0 || rv > len) 993 (void) snprintf(buf, len, "%s", "Unknown"); 994 995 while ((p = strchr(p, '.')) != NULL) 996 *p++ = '_'; 997 998 return (buf); 999} 1000#endif 1001 1002static dtrace_hdl_t * 1003dt_vopen(int version, int flags, int *errp, 1004 const dtrace_vector_t *vector, void *arg) 1005{ 1006 dtrace_hdl_t *dtp = NULL; 1007 int dtfd = -1, ftfd = -1, fterr = 0; 1008 dtrace_prog_t *pgp; 1009 dt_module_t *dmp; 1010 dt_provmod_t *provmod = NULL; 1011 int i, err; 1012 struct rlimit rl; 1013 1014 const dt_intrinsic_t *dinp; 1015 const dt_typedef_t *dtyp; 1016 const dt_ident_t *idp; 1017 1018 dtrace_typeinfo_t dtt; 1019 ctf_funcinfo_t ctc; 1020 ctf_arinfo_t ctr; 1021 1022 dt_fdlist_t df = { NULL, 0, 0 }; 1023 1024 char isadef[32], utsdef[32]; 1025 char s1[64], s2[64]; 1026 1027 if (version <= 0) 1028 return (set_open_errno(dtp, errp, EINVAL)); 1029 1030 if (version > DTRACE_VERSION) 1031 return (set_open_errno(dtp, errp, EDT_VERSION)); 1032 1033 if (version < DTRACE_VERSION) { 1034 /* 1035 * Currently, increasing the library version number is used to 1036 * denote a binary incompatible change. That is, a consumer 1037 * of the library cannot run on a version of the library with 1038 * a higher DTRACE_VERSION number than the consumer compiled 1039 * against. Once the library API has been committed to, 1040 * backwards binary compatibility will be required; at that 1041 * time, this check should change to return EDT_OVERSION only 1042 * if the specified version number is less than the version 1043 * number at the time of interface commitment. 1044 */ 1045 return (set_open_errno(dtp, errp, EDT_OVERSION)); 1046 } 1047 1048 if (flags & ~DTRACE_O_MASK) 1049 return (set_open_errno(dtp, errp, EINVAL)); 1050 1051 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32)) 1052 return (set_open_errno(dtp, errp, EINVAL)); 1053 1054 if (vector == NULL && arg != NULL) 1055 return (set_open_errno(dtp, errp, EINVAL)); 1056 1057 if (elf_version(EV_CURRENT) == EV_NONE) 1058 return (set_open_errno(dtp, errp, EDT_ELFVERSION)); 1059 1060 if (vector != NULL || (flags & DTRACE_O_NODEV)) 1061 goto alloc; /* do not attempt to open dtrace device */ 1062 1063 /* 1064 * Before we get going, crank our limit on file descriptors up to the 1065 * hard limit. This is to allow for the fact that libproc keeps file 1066 * descriptors to objects open for the lifetime of the proc handle; 1067 * without raising our hard limit, we would have an acceptably small 1068 * bound on the number of processes that we could concurrently 1069 * instrument with the pid provider. 1070 */ 1071 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) { 1072 rl.rlim_cur = rl.rlim_max; 1073 (void) setrlimit(RLIMIT_NOFILE, &rl); 1074 } 1075 1076 /* 1077 * Get the device path of each of the providers. We hold them open 1078 * in the df.df_fds list until we open the DTrace driver itself, 1079 * allowing us to see all of the probes provided on this system. Once 1080 * we have the DTrace driver open, we can safely close all the providers 1081 * now that they have registered with the framework. 1082 */ 1083 dt_provmod_open(&provmod, &df); 1084 1085 dtfd = open("/dev/dtrace/dtrace", O_RDWR); 1086 err = errno; /* save errno from opening dtfd */ 1087 1088#if defined(sun) 1089 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR); 1090#else 1091 ftfd = open("/dev/dtrace/fasttrap", O_RDWR); 1092#endif 1093 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */ 1094 1095 while (df.df_ents-- != 0) 1096 (void) close(df.df_fds[df.df_ents]); 1097 1098 free(df.df_fds); 1099 1100 /* 1101 * If we failed to open the dtrace device, fail dtrace_open(). 1102 * We convert some kernel errnos to custom libdtrace errnos to 1103 * improve the resulting message from the usual strerror(). 1104 */ 1105 if (dtfd == -1) { 1106 dt_provmod_destroy(&provmod); 1107 switch (err) { 1108 case ENOENT: 1109 err = EDT_NOENT; 1110 break; 1111 case EBUSY: 1112 err = EDT_BUSY; 1113 break; 1114 case EACCES: 1115 err = EDT_ACCESS; 1116 break; 1117 } 1118 return (set_open_errno(dtp, errp, err)); 1119 } 1120 1121 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC); 1122 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC); 1123 1124alloc: 1125 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL) 1126 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1127 1128 bzero(dtp, sizeof (dtrace_hdl_t)); 1129 dtp->dt_oflags = flags; 1130#if defined(sun) 1131 dtp->dt_prcmode = DT_PROC_STOP_PREINIT; 1132#else 1133 dtp->dt_prcmode = DT_PROC_STOP_MAIN; 1134#endif 1135 dtp->dt_linkmode = DT_LINK_KERNEL; 1136 dtp->dt_linktype = DT_LTYP_ELF; 1137 dtp->dt_xlatemode = DT_XL_STATIC; 1138 dtp->dt_stdcmode = DT_STDC_XA; 1139 dtp->dt_version = version; 1140 dtp->dt_fd = dtfd; 1141 dtp->dt_ftfd = ftfd; 1142 dtp->dt_fterr = fterr; 1143 dtp->dt_cdefs_fd = -1; 1144 dtp->dt_ddefs_fd = -1; 1145#if defined(sun) 1146 dtp->dt_stdout_fd = -1; 1147#else 1148 dtp->dt_freopen_fp = NULL; 1149#endif 1150 dtp->dt_modbuckets = _dtrace_strbuckets; 1151 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *)); 1152 dtp->dt_provbuckets = _dtrace_strbuckets; 1153 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *)); 1154 dt_proc_hash_create(dtp); 1155 dtp->dt_vmax = DT_VERS_LATEST; 1156 dtp->dt_cpp_path = strdup(_dtrace_defcpp); 1157 dtp->dt_cpp_argv = malloc(sizeof (char *)); 1158 dtp->dt_cpp_argc = 1; 1159 dtp->dt_cpp_args = 1; 1160 dtp->dt_ld_path = strdup(_dtrace_defld); 1161 dtp->dt_provmod = provmod; 1162 dtp->dt_vector = vector; 1163 dtp->dt_varg = arg; 1164 dt_dof_init(dtp); 1165 (void) uname(&dtp->dt_uts); 1166 1167 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL || 1168 dtp->dt_procs == NULL || dtp->dt_ld_path == NULL || 1169 dtp->dt_cpp_path == NULL || dtp->dt_cpp_argv == NULL) 1170 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1171 1172 for (i = 0; i < DTRACEOPT_MAX; i++) 1173 dtp->dt_options[i] = DTRACEOPT_UNSET; 1174 1175 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path); 1176 1177#if defined(sun) 1178 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u", 1179 (uint_t)(sizeof (void *) * NBBY)); 1180 1181 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s", 1182 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)), 1183 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2))); 1184 1185 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL || 1186 dt_cpp_add_arg(dtp, "-D__unix") == NULL || 1187 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL || 1188 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL || 1189 dt_cpp_add_arg(dtp, isadef) == NULL || 1190 dt_cpp_add_arg(dtp, utsdef) == NULL) 1191 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1192#endif 1193 1194 if (flags & DTRACE_O_NODEV) 1195 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf)); 1196 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0) 1197 return (set_open_errno(dtp, errp, errno)); 1198 1199 if (flags & DTRACE_O_LP64) 1200 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64; 1201 else if (flags & DTRACE_O_ILP32) 1202 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32; 1203 1204#ifdef __sparc 1205 /* 1206 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h> 1207 * and __sparcv9 is defined if we are doing a 64-bit compile. 1208 */ 1209 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL) 1210 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1211 1212 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 && 1213 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL) 1214 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1215#endif 1216 1217#if defined(sun) 1218#ifdef __x86 1219 /* 1220 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit 1221 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC, 1222 * they are defined exclusive of one another (see PSARC 2004/619). 1223 */ 1224 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 1225 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL) 1226 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1227 } else { 1228 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL) 1229 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1230 } 1231#endif 1232#else 1233#if defined(__amd64__) || defined(__i386__) 1234 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 1235 if (dt_cpp_add_arg(dtp, "-m64") == NULL) 1236 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1237 } else { 1238 if (dt_cpp_add_arg(dtp, "-m32") == NULL) 1239 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1240 } 1241#endif 1242#endif 1243 1244 if (dtp->dt_conf.dtc_difversion < DIF_VERSION) 1245 return (set_open_errno(dtp, errp, EDT_DIFVERS)); 1246 1247 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) 1248 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32)); 1249 else 1250 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64)); 1251 1252 /* 1253 * On FreeBSD the kernel module name can't be hard-coded. The 1254 * 'kern.bootfile' sysctl value tells us exactly which file is being 1255 * used as the kernel. 1256 */ 1257#if !defined(sun) 1258 { 1259 char bootfile[MAXPATHLEN]; 1260 char *p; 1261 int i; 1262 size_t len = sizeof(bootfile); 1263 1264 /* This call shouldn't fail, but use a default just in case. */ 1265 if (sysctlbyname("kern.bootfile", bootfile, &len, NULL, 0) != 0) 1266 strlcpy(bootfile, "kernel", sizeof(bootfile)); 1267 1268 if ((p = strrchr(bootfile, '/')) != NULL) 1269 p++; 1270 else 1271 p = bootfile; 1272 1273 /* 1274 * Format the global variables based on the kernel module name. 1275 */ 1276 snprintf(curthread_str, sizeof(curthread_str), "%s`struct thread *",p); 1277 snprintf(intmtx_str, sizeof(intmtx_str), "int(%s`struct mtx *)",p); 1278 snprintf(threadmtx_str, sizeof(threadmtx_str), "struct thread *(%s`struct mtx *)",p); 1279 snprintf(rwlock_str, sizeof(rwlock_str), "int(%s`struct rwlock *)",p); 1280 snprintf(sxlock_str, sizeof(sxlock_str), "int(%s`struct sxlock *)",p); 1281 } 1282#endif 1283 1284 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX); 1285 dtp->dt_aggs = dt_idhash_create("aggregation", NULL, 1286 DTRACE_AGGVARIDNONE + 1, UINT_MAX); 1287 1288 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals, 1289 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1290 1291 dtp->dt_tls = dt_idhash_create("thread local", NULL, 1292 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1293 1294 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL || 1295 dtp->dt_globals == NULL || dtp->dt_tls == NULL) 1296 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1297 1298 /* 1299 * Populate the dt_macros identifier hash table by hand: we can't use 1300 * the dt_idhash_populate() mechanism because we're not yet compiling 1301 * and dtrace_update() needs to immediately reference these idents. 1302 */ 1303 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) { 1304 if (dt_idhash_insert(dtp->dt_macros, idp->di_name, 1305 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr, 1306 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw, 1307 idp->di_iarg, 0) == NULL) 1308 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1309 } 1310 1311 /* 1312 * Update the module list using /system/object and load the values for 1313 * the macro variable definitions according to the current process. 1314 */ 1315 dtrace_update(dtp); 1316 1317 /* 1318 * Select the intrinsics and typedefs we want based on the data model. 1319 * The intrinsics are under "C". The typedefs are added under "D". 1320 */ 1321 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) { 1322 dinp = _dtrace_intrinsics_32; 1323 dtyp = _dtrace_typedefs_32; 1324 } else { 1325 dinp = _dtrace_intrinsics_64; 1326 dtyp = _dtrace_typedefs_64; 1327 } 1328 1329 /* 1330 * Create a dynamic CTF container under the "C" scope for intrinsic 1331 * types and types defined in ANSI-C header files that are included. 1332 */ 1333 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL) 1334 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1335 1336 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1337 return (set_open_errno(dtp, errp, EDT_CTF)); 1338 1339 dt_dprintf("created CTF container for %s (%p)\n", 1340 dmp->dm_name, (void *)dmp->dm_ctfp); 1341 1342 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1343 ctf_setspecific(dmp->dm_ctfp, dmp); 1344 1345 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1346 dmp->dm_modid = -1; /* no module ID */ 1347 1348 /* 1349 * Fill the dynamic "C" CTF container with all of the intrinsic 1350 * integer and floating-point types appropriate for this data model. 1351 */ 1352 for (; dinp->din_name != NULL; dinp++) { 1353 if (dinp->din_kind == CTF_K_INTEGER) { 1354 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT, 1355 dinp->din_name, &dinp->din_data); 1356 } else { 1357 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT, 1358 dinp->din_name, &dinp->din_data); 1359 } 1360 1361 if (err == CTF_ERR) { 1362 dt_dprintf("failed to add %s to C container: %s\n", 1363 dinp->din_name, ctf_errmsg( 1364 ctf_errno(dmp->dm_ctfp))); 1365 return (set_open_errno(dtp, errp, EDT_CTF)); 1366 } 1367 } 1368 1369 if (ctf_update(dmp->dm_ctfp) != 0) { 1370 dt_dprintf("failed to update C container: %s\n", 1371 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1372 return (set_open_errno(dtp, errp, EDT_CTF)); 1373 } 1374 1375 /* 1376 * Add intrinsic pointer types that are needed to initialize printf 1377 * format dictionary types (see table in dt_printf.c). 1378 */ 1379 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1380 ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1381 1382 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1383 ctf_lookup_by_name(dmp->dm_ctfp, "char")); 1384 1385 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1386 ctf_lookup_by_name(dmp->dm_ctfp, "int")); 1387 1388 if (ctf_update(dmp->dm_ctfp) != 0) { 1389 dt_dprintf("failed to update C container: %s\n", 1390 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1391 return (set_open_errno(dtp, errp, EDT_CTF)); 1392 } 1393 1394 /* 1395 * Create a dynamic CTF container under the "D" scope for types that 1396 * are defined by the D program itself or on-the-fly by the D compiler. 1397 * The "D" CTF container is a child of the "C" CTF container. 1398 */ 1399 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL) 1400 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1401 1402 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1403 return (set_open_errno(dtp, errp, EDT_CTF)); 1404 1405 dt_dprintf("created CTF container for %s (%p)\n", 1406 dmp->dm_name, (void *)dmp->dm_ctfp); 1407 1408 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1409 ctf_setspecific(dmp->dm_ctfp, dmp); 1410 1411 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1412 dmp->dm_modid = -1; /* no module ID */ 1413 1414 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) { 1415 dt_dprintf("failed to import D parent container: %s\n", 1416 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1417 return (set_open_errno(dtp, errp, EDT_CTF)); 1418 } 1419 1420 /* 1421 * Fill the dynamic "D" CTF container with all of the built-in typedefs 1422 * that we need to use for our D variable and function definitions. 1423 * This ensures that basic inttypes.h names are always available to us. 1424 */ 1425 for (; dtyp->dty_src != NULL; dtyp++) { 1426 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1427 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp, 1428 dtyp->dty_src)) == CTF_ERR) { 1429 dt_dprintf("failed to add typedef %s %s to D " 1430 "container: %s", dtyp->dty_src, dtyp->dty_dst, 1431 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1432 return (set_open_errno(dtp, errp, EDT_CTF)); 1433 } 1434 } 1435 1436 /* 1437 * Insert a CTF ID corresponding to a pointer to a type of kind 1438 * CTF_K_FUNCTION we can use in the compiler for function pointers. 1439 * CTF treats all function pointers as "int (*)()" so we only need one. 1440 */ 1441 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int"); 1442 ctc.ctc_argc = 0; 1443 ctc.ctc_flags = 0; 1444 1445 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp, 1446 CTF_ADD_ROOT, &ctc, NULL); 1447 1448 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp, 1449 CTF_ADD_ROOT, dtp->dt_type_func); 1450 1451 /* 1452 * We also insert CTF definitions for the special D intrinsic types 1453 * string and <DYN> into the D container. The string type is added 1454 * as a typedef of char[n]. The <DYN> type is an alias for void. 1455 * We compare types to these special CTF ids throughout the compiler. 1456 */ 1457 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char"); 1458 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long"); 1459 ctr.ctr_nelems = _dtrace_strsize; 1460 1461 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1462 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr)); 1463 1464 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1465 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1466 1467 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1468 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1469 1470 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1471 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1472 1473 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1474 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1475 1476 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR || 1477 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR || 1478 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR || 1479 dtp->dt_type_usymaddr == CTF_ERR) { 1480 dt_dprintf("failed to add intrinsic to D container: %s\n", 1481 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1482 return (set_open_errno(dtp, errp, EDT_CTF)); 1483 } 1484 1485 if (ctf_update(dmp->dm_ctfp) != 0) { 1486 dt_dprintf("failed update D container: %s\n", 1487 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1488 return (set_open_errno(dtp, errp, EDT_CTF)); 1489 } 1490 1491 /* 1492 * Initialize the integer description table used to convert integer 1493 * constants to the appropriate types. Refer to the comments above 1494 * dt_node_int() for a complete description of how this table is used. 1495 */ 1496 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) { 1497 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY, 1498 dtp->dt_ints[i].did_name, &dtt) != 0) { 1499 dt_dprintf("failed to lookup integer type %s: %s\n", 1500 dtp->dt_ints[i].did_name, 1501 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1502 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1503 } 1504 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp; 1505 dtp->dt_ints[i].did_type = dtt.dtt_type; 1506 } 1507 1508 /* 1509 * Now that we've created the "C" and "D" containers, move them to the 1510 * start of the module list so that these types and symbols are found 1511 * first (for stability) when iterating through the module list. 1512 */ 1513 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs); 1514 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs); 1515 1516 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs); 1517 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs); 1518 1519 if (dt_pfdict_create(dtp) == -1) 1520 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1521 1522 /* 1523 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default 1524 * because without /dev/dtrace open, we will not be able to load the 1525 * names and attributes of any providers or probes from the kernel. 1526 */ 1527 if (flags & DTRACE_O_NODEV) 1528 dtp->dt_cflags |= DTRACE_C_ZDEFS; 1529 1530 /* 1531 * Load hard-wired inlines into the definition cache by calling the 1532 * compiler on the raw definition string defined above. 1533 */ 1534 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire, 1535 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) { 1536 dt_dprintf("failed to load hard-wired definitions: %s\n", 1537 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1538 return (set_open_errno(dtp, errp, EDT_HARDWIRE)); 1539 } 1540 1541 dt_program_destroy(dtp, pgp); 1542 1543 /* 1544 * Set up the default DTrace library path. Once set, the next call to 1545 * dt_compile() will compile all the libraries. We intentionally defer 1546 * library processing to improve overhead for clients that don't ever 1547 * compile, and to provide better error reporting (because the full 1548 * reporting of compiler errors requires dtrace_open() to succeed). 1549 */ 1550 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0) 1551 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1552 1553 return (dtp); 1554} 1555 1556dtrace_hdl_t * 1557dtrace_open(int version, int flags, int *errp) 1558{ 1559 return (dt_vopen(version, flags, errp, NULL, NULL)); 1560} 1561 1562dtrace_hdl_t * 1563dtrace_vopen(int version, int flags, int *errp, 1564 const dtrace_vector_t *vector, void *arg) 1565{ 1566 return (dt_vopen(version, flags, errp, vector, arg)); 1567} 1568 1569void 1570dtrace_close(dtrace_hdl_t *dtp) 1571{ 1572 dt_ident_t *idp, *ndp; 1573 dt_module_t *dmp; 1574 dt_provider_t *pvp; 1575 dtrace_prog_t *pgp; 1576 dt_xlator_t *dxp; 1577 dt_dirpath_t *dirp; 1578 int i; 1579 1580 if (dtp->dt_procs != NULL) 1581 dt_proc_hash_destroy(dtp); 1582 1583 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL) 1584 dt_program_destroy(dtp, pgp); 1585 1586 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL) 1587 dt_xlator_destroy(dtp, dxp); 1588 1589 dt_free(dtp, dtp->dt_xlatormap); 1590 1591 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) { 1592 ndp = idp->di_next; 1593 dt_ident_destroy(idp); 1594 } 1595 1596 if (dtp->dt_macros != NULL) 1597 dt_idhash_destroy(dtp->dt_macros); 1598 if (dtp->dt_aggs != NULL) 1599 dt_idhash_destroy(dtp->dt_aggs); 1600 if (dtp->dt_globals != NULL) 1601 dt_idhash_destroy(dtp->dt_globals); 1602 if (dtp->dt_tls != NULL) 1603 dt_idhash_destroy(dtp->dt_tls); 1604 1605 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL) 1606 dt_module_destroy(dtp, dmp); 1607 1608 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL) 1609 dt_provider_destroy(dtp, pvp); 1610 1611 if (dtp->dt_fd != -1) 1612 (void) close(dtp->dt_fd); 1613 if (dtp->dt_ftfd != -1) 1614 (void) close(dtp->dt_ftfd); 1615 if (dtp->dt_cdefs_fd != -1) 1616 (void) close(dtp->dt_cdefs_fd); 1617 if (dtp->dt_ddefs_fd != -1) 1618 (void) close(dtp->dt_ddefs_fd); 1619#if defined(sun) 1620 if (dtp->dt_stdout_fd != -1) 1621 (void) close(dtp->dt_stdout_fd); 1622#else 1623 if (dtp->dt_freopen_fp != NULL) 1624 (void) fclose(dtp->dt_freopen_fp); 1625#endif 1626 1627 dt_epid_destroy(dtp); 1628 dt_aggid_destroy(dtp); 1629 dt_format_destroy(dtp); 1630 dt_strdata_destroy(dtp); 1631 dt_buffered_destroy(dtp); 1632 dt_aggregate_destroy(dtp); 1633 free(dtp->dt_buf.dtbd_data); 1634 dt_pfdict_destroy(dtp); 1635 dt_provmod_destroy(&dtp->dt_provmod); 1636 dt_dof_fini(dtp); 1637 1638 for (i = 1; i < dtp->dt_cpp_argc; i++) 1639 free(dtp->dt_cpp_argv[i]); 1640 1641 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) { 1642 dt_list_delete(&dtp->dt_lib_path, dirp); 1643 free(dirp->dir_path); 1644 free(dirp); 1645 } 1646 1647 free(dtp->dt_cpp_argv); 1648 free(dtp->dt_cpp_path); 1649 free(dtp->dt_ld_path); 1650 1651 free(dtp->dt_mods); 1652 free(dtp->dt_provs); 1653 free(dtp); 1654} 1655 1656int 1657dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods) 1658{ 1659 dt_provmod_t *prov; 1660 int i = 0; 1661 1662 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) { 1663 if (i < nmods) 1664 mods[i] = prov->dp_name; 1665 } 1666 1667 return (i); 1668} 1669 1670int 1671dtrace_ctlfd(dtrace_hdl_t *dtp) 1672{ 1673 return (dtp->dt_fd); 1674} 1675