dt_open.c revision 212495
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 */ 25 26#include <sys/types.h> 27#if defined(sun) 28#include <sys/modctl.h> 29#include <sys/systeminfo.h> 30#endif 31#include <sys/resource.h> 32 33#include <libelf.h> 34#include <strings.h> 35#if defined(sun) 36#include <alloca.h> 37#endif 38#include <limits.h> 39#include <unistd.h> 40#include <stdlib.h> 41#include <stdio.h> 42#include <fcntl.h> 43#include <errno.h> 44#include <assert.h> 45 46#define _POSIX_PTHREAD_SEMANTICS 47#include <dirent.h> 48#undef _POSIX_PTHREAD_SEMANTICS 49 50#include <dt_impl.h> 51#include <dt_program.h> 52#include <dt_module.h> 53#include <dt_printf.h> 54#include <dt_string.h> 55#include <dt_provider.h> 56#if !defined(sun) 57#include <sys/sysctl.h> 58#include <string.h> 59#endif 60#if defined(__i386__) 61#include <ieeefp.h> 62#endif 63 64/* 65 * Stability and versioning definitions. These #defines are used in the tables 66 * of identifiers below to fill in the attribute and version fields associated 67 * with each identifier. The DT_ATTR_* macros are a convenience to permit more 68 * concise declarations of common attributes such as Stable/Stable/Common. The 69 * DT_VERS_* macros declare the encoded integer values of all versions used so 70 * far. DT_VERS_LATEST must correspond to the latest version value among all 71 * versions exported by the D compiler. DT_VERS_STRING must be an ASCII string 72 * that contains DT_VERS_LATEST within it along with any suffixes (e.g. Beta). 73 * You must update DT_VERS_LATEST and DT_VERS_STRING when adding a new version, 74 * and then add the new version to the _dtrace_versions[] array declared below. 75 * Refer to the Solaris Dynamic Tracing Guide Stability and Versioning chapters 76 * respectively for an explanation of these DTrace features and their values. 77 * 78 * NOTE: Although the DTrace versioning scheme supports the labeling and 79 * introduction of incompatible changes (e.g. dropping an interface in a 80 * major release), the libdtrace code does not currently support this. 81 * All versions are assumed to strictly inherit from one another. If 82 * we ever need to provide divergent interfaces, this will need work. 83 */ 84#define DT_ATTR_STABCMN { DTRACE_STABILITY_STABLE, \ 85 DTRACE_STABILITY_STABLE, DTRACE_CLASS_COMMON } 86 87#define DT_ATTR_EVOLCMN { DTRACE_STABILITY_EVOLVING, \ 88 DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_COMMON \ 89} 90 91/* 92 * The version number should be increased for every customer visible release 93 * of Solaris. The major number should be incremented when a fundamental 94 * change has been made that would affect all consumers, and would reflect 95 * sweeping changes to DTrace or the D language. The minor number should be 96 * incremented when a change is introduced that could break scripts that had 97 * previously worked; for example, adding a new built-in variable could break 98 * a script which was already using that identifier. The micro number should 99 * be changed when introducing functionality changes or major bug fixes that 100 * do not affect backward compatibility -- this is merely to make capabilities 101 * easily determined from the version number. Minor bugs do not require any 102 * modification to the version number. 103 */ 104#define DT_VERS_1_0 DT_VERSION_NUMBER(1, 0, 0) 105#define DT_VERS_1_1 DT_VERSION_NUMBER(1, 1, 0) 106#define DT_VERS_1_2 DT_VERSION_NUMBER(1, 2, 0) 107#define DT_VERS_1_2_1 DT_VERSION_NUMBER(1, 2, 1) 108#define DT_VERS_1_2_2 DT_VERSION_NUMBER(1, 2, 2) 109#define DT_VERS_1_3 DT_VERSION_NUMBER(1, 3, 0) 110#define DT_VERS_1_4 DT_VERSION_NUMBER(1, 4, 0) 111#define DT_VERS_1_4_1 DT_VERSION_NUMBER(1, 4, 1) 112#define DT_VERS_1_5 DT_VERSION_NUMBER(1, 5, 0) 113#define DT_VERS_1_6 DT_VERSION_NUMBER(1, 6, 0) 114#define DT_VERS_1_6_1 DT_VERSION_NUMBER(1, 6, 1) 115#define DT_VERS_1_6_2 DT_VERSION_NUMBER(1, 6, 2) 116#define DT_VERS_1_6_3 DT_VERSION_NUMBER(1, 6, 3) 117#define DT_VERS_LATEST DT_VERS_1_6_3 118#define DT_VERS_STRING "Sun D 1.6.3" 119 120const dt_version_t _dtrace_versions[] = { 121 DT_VERS_1_0, /* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */ 122 DT_VERS_1_1, /* D API 1.1.0 Solaris Express 6/05 */ 123 DT_VERS_1_2, /* D API 1.2.0 Solaris 10 Update 1 */ 124 DT_VERS_1_2_1, /* D API 1.2.1 Solaris Express 4/06 */ 125 DT_VERS_1_2_2, /* D API 1.2.2 Solaris Express 6/06 */ 126 DT_VERS_1_3, /* D API 1.3 Solaris Express 10/06 */ 127 DT_VERS_1_4, /* D API 1.4 Solaris Express 2/07 */ 128 DT_VERS_1_4_1, /* D API 1.4.1 Solaris Express 4/07 */ 129 DT_VERS_1_5, /* D API 1.5 Solaris Express 7/07 */ 130 DT_VERS_1_6, /* D API 1.6 */ 131 DT_VERS_1_6_1, /* D API 1.6.1 */ 132 DT_VERS_1_6_2, /* D API 1.6.2 */ 133 DT_VERS_1_6_3, /* D API 1.6.3 */ 134 0 135}; 136 137/* 138 * Global variables that are formatted on FreeBSD based on the kernel file name. 139 */ 140#if !defined(sun) 141static char curthread_str[MAXPATHLEN]; 142static char intmtx_str[MAXPATHLEN]; 143static char threadmtx_str[MAXPATHLEN]; 144static char rwlock_str[MAXPATHLEN]; 145static char sxlock_str[MAXPATHLEN]; 146#endif 147 148/* 149 * Table of global identifiers. This is used to populate the global identifier 150 * hash when a new dtrace client open occurs. For more info see dt_ident.h. 151 * The global identifiers that represent functions use the dt_idops_func ops 152 * and specify the private data pointer as a prototype string which is parsed 153 * when the identifier is first encountered. These prototypes look like ANSI 154 * C function prototypes except that the special symbol "@" can be used as a 155 * wildcard to represent a single parameter of any type (i.e. any dt_node_t). 156 * The standard "..." notation can also be used to represent varargs. An empty 157 * parameter list is taken to mean void (that is, no arguments are permitted). 158 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional 159 * argument. 160 */ 161static const dt_ident_t _dtrace_globals[] = { 162{ "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0, 163 &dt_idops_func, "void *(size_t)" }, 164{ "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0, 165 &dt_idops_type, "int64_t" }, 166{ "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0, 167 &dt_idops_type, "int64_t" }, 168{ "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0, 169 &dt_idops_type, "int64_t" }, 170{ "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0, 171 &dt_idops_type, "int64_t" }, 172{ "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0, 173 &dt_idops_type, "int64_t" }, 174{ "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0, 175 &dt_idops_type, "int64_t" }, 176{ "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0, 177 &dt_idops_type, "int64_t" }, 178{ "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0, 179 &dt_idops_type, "int64_t" }, 180{ "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0, 181 &dt_idops_type, "int64_t" }, 182{ "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0, 183 &dt_idops_type, "int64_t" }, 184{ "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0, 185 &dt_idops_args, NULL }, 186{ "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0, 187 &dt_idops_func, "void(@)" }, 188{ "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0, 189 &dt_idops_func, "string(const char *)" }, 190{ "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0, 191 &dt_idops_func, "void(void *, void *, size_t)" }, 192{ "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT, 193 DT_ATTR_STABCMN, DT_VERS_1_0, 194 &dt_idops_func, "void()" }, 195{ "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0, 196 &dt_idops_type, "uintptr_t" }, 197{ "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0, 198 &dt_idops_func, "void(int)" }, 199{ "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN, 200 DT_VERS_1_0, &dt_idops_func, "string(const char *)" }, 201{ "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0, 202 &dt_idops_func, "void(...)" }, 203{ "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0, 204 &dt_idops_func, "void(int)" }, 205{ "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0, 206 &dt_idops_func, "void *(uintptr_t, size_t)" }, 207{ "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR, 208 DT_ATTR_STABCMN, DT_VERS_1_0, 209 &dt_idops_func, "string(uintptr_t, [size_t])" }, 210{ "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN, 211 DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" }, 212{ "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0, 213 &dt_idops_func, "void(void *, uintptr_t, size_t)" }, 214{ "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR, 215 DT_ATTR_STABCMN, DT_VERS_1_0, 216 &dt_idops_func, "void(char *, uintptr_t, size_t)" }, 217{ "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0, 218 &dt_idops_func, "void()" }, 219{ "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD, 220 { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE, 221 DTRACE_CLASS_COMMON }, DT_VERS_1_0, 222#if defined(sun) 223 &dt_idops_type, "genunix`kthread_t *" }, 224#else 225 &dt_idops_type, curthread_str }, 226#endif 227{ "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME, 228 DT_ATTR_EVOLCMN, DT_VERS_1_0, 229 &dt_idops_func, "string(void *, int64_t)" }, 230{ "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN, 231 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 232{ "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0, 233 &dt_idops_func, "string(const char *)" }, 234{ "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0, 235 &dt_idops_func, "void(int)" }, 236{ "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0, 237 &dt_idops_type, "uint_t" }, 238{ "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0, 239 &dt_idops_type, "int" }, 240{ "execargs", DT_IDENT_SCALAR, 0, DIF_VAR_EXECARGS, 241 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 242{ "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME, 243 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 244{ "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0, 245 &dt_idops_func, "void(int)" }, 246{ "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN, 247 DT_VERS_1_1, &dt_idops_func, "void(@, ...)" }, 248{ "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN, 249 DT_VERS_1_0, &dt_idops_func, "void()" }, 250{ "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 251 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 252{ "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR, 253 DT_ATTR_EVOLCMN, DT_VERS_1_0, 254 &dt_idops_func, "genunix`major_t(genunix`dev_t)" }, 255{ "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR, 256 DT_ATTR_EVOLCMN, DT_VERS_1_0, 257 &dt_idops_func, "genunix`minor_t(genunix`dev_t)" }, 258{ "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 259 &dt_idops_func, "uint32_t(uint32_t)" }, 260{ "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 261 &dt_idops_func, "uint64_t(uint64_t)" }, 262{ "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 263 &dt_idops_func, "uint16_t(uint16_t)" }, 264{ "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0, 265 &dt_idops_type, "gid_t" }, 266{ "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0, 267 &dt_idops_type, "uint_t" }, 268{ "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 269 &dt_idops_func, "int(const char *, const char *, [int])" }, 270{ "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN, 271#if defined(sun) 272 DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" }, 273#else 274 DT_VERS_1_5, &dt_idops_func, "string(in_addr_t *)" }, 275#endif 276{ "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN, 277#if defined(sun) 278 DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" }, 279#else 280 DT_VERS_1_5, &dt_idops_func, "string(struct in6_addr *)" }, 281#endif 282{ "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN, 283 DT_VERS_1_5, &dt_idops_func, "string(int, void *)" }, 284{ "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0, 285 &dt_idops_type, "uint_t" }, 286{ "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 287 &dt_idops_func, "stack(...)" }, 288{ "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0, 289 &dt_idops_func, "string(int64_t)" }, 290{ "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE, 291 DT_ATTR_STABCMN, DT_VERS_1_0, 292 &dt_idops_func, "void(@, int32_t, int32_t, ...)" }, 293{ "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0, 294 &dt_idops_func, "void(@)" }, 295{ "memref", DT_IDENT_FUNC, 0, DIF_SUBR_MEMREF, DT_ATTR_STABCMN, DT_VERS_1_1, 296 &dt_idops_func, "uintptr_t *(void *, size_t)" }, 297{ "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0, 298 &dt_idops_func, "void(@)" }, 299{ "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN, 300 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 301{ "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE, 302 DT_ATTR_STABCMN, DT_VERS_1_0, 303 &dt_idops_func, "size_t(mblk_t *)" }, 304{ "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE, 305 DT_ATTR_STABCMN, DT_VERS_1_0, 306 &dt_idops_func, "size_t(mblk_t *)" }, 307#if defined(sun) 308{ "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 309 DT_ATTR_EVOLCMN, DT_VERS_1_0, 310 &dt_idops_func, "int(genunix`kmutex_t *)" }, 311{ "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 312 DT_ATTR_EVOLCMN, DT_VERS_1_0, 313 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" }, 314{ "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 315 DT_ATTR_EVOLCMN, DT_VERS_1_0, 316 &dt_idops_func, "int(genunix`kmutex_t *)" }, 317{ "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 318 DT_ATTR_EVOLCMN, DT_VERS_1_0, 319 &dt_idops_func, "int(genunix`kmutex_t *)" }, 320#else 321{ "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 322 DT_ATTR_EVOLCMN, DT_VERS_1_0, 323 &dt_idops_func, intmtx_str }, 324{ "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 325 DT_ATTR_EVOLCMN, DT_VERS_1_0, 326 &dt_idops_func, threadmtx_str }, 327{ "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 328 DT_ATTR_EVOLCMN, DT_VERS_1_0, 329 &dt_idops_func, intmtx_str }, 330{ "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 331 DT_ATTR_EVOLCMN, DT_VERS_1_0, 332 &dt_idops_func, intmtx_str }, 333#endif 334{ "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 335 &dt_idops_func, "uint32_t(uint32_t)" }, 336{ "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 337 &dt_idops_func, "uint64_t(uint64_t)" }, 338{ "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 339 &dt_idops_func, "uint16_t(uint16_t)" }, 340{ "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN, 341 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 342{ "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0, 343 &dt_idops_func, "void()" }, 344{ "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0, 345 &dt_idops_type, "pid_t" }, 346{ "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0, 347 &dt_idops_type, "pid_t" }, 348{ "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0, 349 &dt_idops_func, "void(@, ...)" }, 350{ "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0, 351 &dt_idops_func, "void(@, ...)" }, 352{ "printm", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTM, DT_ATTR_STABCMN, DT_VERS_1_0, 353 &dt_idops_func, "void(size_t, uintptr_t *)" }, 354{ "printt", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTT, DT_ATTR_STABCMN, DT_VERS_1_0, 355 &dt_idops_func, "void(size_t, uintptr_t *)" }, 356{ "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC, 357 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 358{ "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD, 359 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 360{ "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME, 361 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 362{ "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV, 363 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 364{ "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF, 365 DT_ATTR_STABCMN, DT_VERS_1_0, 366 &dt_idops_func, "int(pid_t)" }, 367{ "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE, 368 DT_ATTR_STABCMN, DT_VERS_1_0, 369 &dt_idops_func, "void(@, ...)" }, 370{ "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0, 371 &dt_idops_func, "void(int)" }, 372{ "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0, 373 &dt_idops_func, "int()" }, 374{ "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 375 &dt_idops_func, "int(const char *, const char *, [int])" }, 376#if defined(sun) 377{ "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 378 DT_ATTR_EVOLCMN, DT_VERS_1_0, 379 &dt_idops_func, "int(genunix`krwlock_t *)" }, 380{ "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 381 DT_ATTR_EVOLCMN, DT_VERS_1_0, 382 &dt_idops_func, "int(genunix`krwlock_t *)" }, 383{ "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 384 DT_ATTR_EVOLCMN, DT_VERS_1_0, 385 &dt_idops_func, "int(genunix`krwlock_t *)" }, 386#else 387{ "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 388 DT_ATTR_EVOLCMN, DT_VERS_1_0, 389 &dt_idops_func, rwlock_str }, 390{ "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 391 DT_ATTR_EVOLCMN, DT_VERS_1_0, 392 &dt_idops_func, rwlock_str }, 393{ "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 394 DT_ATTR_EVOLCMN, DT_VERS_1_0, 395 &dt_idops_func, rwlock_str }, 396#endif 397{ "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 398 &dt_idops_type, "void" }, 399{ "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN, 400 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" }, 401{ "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE, 402 DT_ATTR_STABCMN, DT_VERS_1_0, 403 &dt_idops_func, "void(int)" }, 404{ "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION, 405 DT_ATTR_STABCMN, DT_VERS_1_0, 406 &dt_idops_func, "int()" }, 407{ "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0, 408 &dt_idops_func, "stack(...)" }, 409{ "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH, 410 DT_ATTR_STABCMN, DT_VERS_1_0, 411 &dt_idops_type, "uint32_t" }, 412{ "stddev", DT_IDENT_AGGFUNC, 0, DTRACEAGG_STDDEV, DT_ATTR_STABCMN, 413 DT_VERS_1_6, &dt_idops_func, "void(@)" }, 414{ "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0, 415 &dt_idops_func, "void()" }, 416{ "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 417 &dt_idops_func, "string(const char *, char)" }, 418{ "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0, 419 &dt_idops_func, "size_t(const char *)" }, 420{ "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0, 421 &dt_idops_func, "string(const char *, const char *)" }, 422{ "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 423 &dt_idops_func, "string(const char *, char)" }, 424{ "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 425 &dt_idops_func, "string(const char *, const char *)" }, 426{ "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1, 427 &dt_idops_func, "string(const char *, const char *)" }, 428{ "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 429 &dt_idops_func, "string(const char *, int, [int])" }, 430{ "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0, 431 &dt_idops_func, "void(@)" }, 432#if !defined(sun) 433{ "sx_isexclusive", DT_IDENT_FUNC, 0, DIF_SUBR_SX_ISEXCLUSIVE, 434 DT_ATTR_EVOLCMN, DT_VERS_1_0, 435 &dt_idops_func, sxlock_str }, 436{ "sx_shared_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_SHARED_HELD, 437 DT_ATTR_EVOLCMN, DT_VERS_1_0, 438 &dt_idops_func, sxlock_str }, 439{ "sx_exclusive_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_EXCLUSIVE_HELD, 440 DT_ATTR_EVOLCMN, DT_VERS_1_0, 441 &dt_idops_func, sxlock_str }, 442#endif 443{ "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 444 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 445{ "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0, 446 &dt_idops_func, "void(@, ...)" }, 447{ "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 448 &dt_idops_type, "void" }, 449{ "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0, 450 &dt_idops_type, "id_t" }, 451{ "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP, 452 DT_ATTR_STABCMN, DT_VERS_1_0, 453 &dt_idops_type, "uint64_t" }, 454{ "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0, 455 &dt_idops_func, "void(@)" }, 456{ "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM, 457 DT_ATTR_STABCMN, DT_VERS_1_0, 458 &dt_idops_func, "void(@, size_t)" }, 459{ "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN, 460 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 461{ "typeref", DT_IDENT_FUNC, 0, DIF_SUBR_TYPEREF, DT_ATTR_STABCMN, DT_VERS_1_1, 462 &dt_idops_func, "uintptr_t *(void *, size_t, string, size_t)" }, 463#if defined(sun) 464{ "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN, 465 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 466#endif 467{ "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN, 468 DT_VERS_1_2, &dt_idops_type, "uint64_t" }, 469#if defined(sun) 470{ "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 471 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 472#endif 473{ "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0, 474 &dt_idops_type, "uid_t" }, 475#if defined(sun) 476{ "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN, 477 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 478#endif 479{ "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0, 480 &dt_idops_regs, NULL }, 481{ "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 482 &dt_idops_func, "stack(...)" }, 483{ "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH, 484 DT_ATTR_STABCMN, DT_VERS_1_2, 485 &dt_idops_type, "uint32_t" }, 486#if defined(sun) 487{ "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 488 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 489#endif 490{ "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP, 491 DT_ATTR_STABCMN, DT_VERS_1_0, 492 &dt_idops_type, "uint64_t" }, 493{ "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP, 494 DT_ATTR_STABCMN, DT_VERS_1_0, 495 &dt_idops_type, "int64_t" }, 496#if defined(sun) 497{ "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME, 498 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 499#endif 500{ NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL } 501}; 502 503/* 504 * Tables of ILP32 intrinsic integer and floating-point type templates to use 505 * to populate the dynamic "C" CTF type container. 506 */ 507static const dt_intrinsic_t _dtrace_intrinsics_32[] = { 508{ "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 509{ "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 510{ "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 511{ "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 512{ "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 513{ "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 514{ "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 515{ "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 516{ "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 517{ "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 518{ "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 519{ "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 520{ "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 521{ "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 522{ "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 523{ "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 524{ "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER }, 525{ "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 526{ "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 527{ "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 528{ "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 529{ "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 530{ "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 531{ "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 532{ "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 533{ "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 534{ "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 535{ "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 536{ NULL, { 0, 0, 0 }, 0 } 537}; 538 539/* 540 * Tables of LP64 intrinsic integer and floating-point type templates to use 541 * to populate the dynamic "C" CTF type container. 542 */ 543static const dt_intrinsic_t _dtrace_intrinsics_64[] = { 544{ "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 545{ "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 546{ "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 547{ "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 548{ "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 549{ "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 550{ "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 551{ "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 552{ "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 553{ "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 554{ "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 555{ "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 556{ "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 557{ "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 558{ "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 559{ "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 560{ "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER }, 561{ "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 562{ "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 563{ "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 564{ "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 565{ "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 566{ "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 567{ "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 568{ "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 569{ "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 570{ "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 571{ "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 572{ NULL, { 0, 0, 0 }, 0 } 573}; 574 575/* 576 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container. 577 * These aliases ensure that D definitions can use typical <sys/types.h> names. 578 */ 579static const dt_typedef_t _dtrace_typedefs_32[] = { 580{ "char", "int8_t" }, 581{ "short", "int16_t" }, 582{ "int", "int32_t" }, 583{ "long long", "int64_t" }, 584{ "int", "intptr_t" }, 585{ "int", "ssize_t" }, 586{ "unsigned char", "uint8_t" }, 587{ "unsigned short", "uint16_t" }, 588{ "unsigned", "uint32_t" }, 589{ "unsigned long long", "uint64_t" }, 590{ "unsigned char", "uchar_t" }, 591{ "unsigned short", "ushort_t" }, 592{ "unsigned", "uint_t" }, 593{ "unsigned long", "ulong_t" }, 594{ "unsigned long long", "u_longlong_t" }, 595{ "int", "ptrdiff_t" }, 596{ "unsigned", "uintptr_t" }, 597{ "unsigned", "size_t" }, 598{ "long", "id_t" }, 599{ "long", "pid_t" }, 600{ NULL, NULL } 601}; 602 603/* 604 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container. 605 * These aliases ensure that D definitions can use typical <sys/types.h> names. 606 */ 607static const dt_typedef_t _dtrace_typedefs_64[] = { 608{ "char", "int8_t" }, 609{ "short", "int16_t" }, 610{ "int", "int32_t" }, 611{ "long", "int64_t" }, 612{ "long", "intptr_t" }, 613{ "long", "ssize_t" }, 614{ "unsigned char", "uint8_t" }, 615{ "unsigned short", "uint16_t" }, 616{ "unsigned", "uint32_t" }, 617{ "unsigned long", "uint64_t" }, 618{ "unsigned char", "uchar_t" }, 619{ "unsigned short", "ushort_t" }, 620{ "unsigned", "uint_t" }, 621{ "unsigned long", "ulong_t" }, 622{ "unsigned long long", "u_longlong_t" }, 623{ "long", "ptrdiff_t" }, 624{ "unsigned long", "uintptr_t" }, 625{ "unsigned long", "size_t" }, 626{ "int", "id_t" }, 627{ "int", "pid_t" }, 628{ NULL, NULL } 629}; 630 631/* 632 * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[] 633 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 634 */ 635static const dt_intdesc_t _dtrace_ints_32[] = { 636{ "int", NULL, CTF_ERR, 0x7fffffffULL }, 637{ "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 638{ "long", NULL, CTF_ERR, 0x7fffffffULL }, 639{ "unsigned long", NULL, CTF_ERR, 0xffffffffULL }, 640{ "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 641{ "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 642}; 643 644/* 645 * Tables of LP64 integer type templates used to populate the dtp->dt_ints[] 646 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 647 */ 648static const dt_intdesc_t _dtrace_ints_64[] = { 649{ "int", NULL, CTF_ERR, 0x7fffffffULL }, 650{ "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 651{ "long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 652{ "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL }, 653{ "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 654{ "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 655}; 656 657/* 658 * Table of macro variable templates used to populate the macro identifier hash 659 * when a new dtrace client open occurs. Values are set by dtrace_update(). 660 */ 661static const dt_ident_t _dtrace_macros[] = { 662{ "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 663{ "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 664{ "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 665{ "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 666{ "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 667{ "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 668{ "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 669{ "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 670{ "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 671{ "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 672{ "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 673{ NULL, 0, 0, 0, { 0, 0, 0 }, 0 } 674}; 675 676/* 677 * Hard-wired definition string to be compiled and cached every time a new 678 * DTrace library handle is initialized. This string should only be used to 679 * contain definitions that should be present regardless of DTRACE_O_NOLIBS. 680 */ 681static const char _dtrace_hardwire[] = "\ 682inline long NULL = 0; \n\ 683#pragma D binding \"1.0\" NULL\n\ 684"; 685 686/* 687 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV. 688 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel. 689 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are 690 * relying on the fact that when running dtrace(1M), isaexec will invoke the 691 * binary with the same bitness as the kernel, which is what we want by default 692 * when generating our DIF. The user can override the choice using oflags. 693 */ 694static const dtrace_conf_t _dtrace_conf = { 695 DIF_VERSION, /* dtc_difversion */ 696 DIF_DIR_NREGS, /* dtc_difintregs */ 697 DIF_DTR_NREGS, /* dtc_diftupregs */ 698 CTF_MODEL_NATIVE /* dtc_ctfmodel */ 699}; 700 701const dtrace_attribute_t _dtrace_maxattr = { 702 DTRACE_STABILITY_MAX, 703 DTRACE_STABILITY_MAX, 704 DTRACE_CLASS_MAX 705}; 706 707const dtrace_attribute_t _dtrace_defattr = { 708 DTRACE_STABILITY_STABLE, 709 DTRACE_STABILITY_STABLE, 710 DTRACE_CLASS_COMMON 711}; 712 713const dtrace_attribute_t _dtrace_symattr = { 714 DTRACE_STABILITY_PRIVATE, 715 DTRACE_STABILITY_PRIVATE, 716 DTRACE_CLASS_UNKNOWN 717}; 718 719const dtrace_attribute_t _dtrace_typattr = { 720 DTRACE_STABILITY_PRIVATE, 721 DTRACE_STABILITY_PRIVATE, 722 DTRACE_CLASS_UNKNOWN 723}; 724 725const dtrace_attribute_t _dtrace_prvattr = { 726 DTRACE_STABILITY_PRIVATE, 727 DTRACE_STABILITY_PRIVATE, 728 DTRACE_CLASS_UNKNOWN 729}; 730 731const dtrace_pattr_t _dtrace_prvdesc = { 732{ DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 733{ DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 734{ DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 735{ DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 736{ DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 737}; 738 739#if defined(sun) 740const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */ 741const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */ 742#else 743const char *_dtrace_defcpp = "cpp"; /* default cpp(1) to invoke */ 744const char *_dtrace_defld = "ld"; /* default ld(1) to invoke */ 745#endif 746 747const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */ 748#if defined(sun) 749const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */ 750#else 751const char *_dtrace_provdir = "/dev/dtrace"; /* provider directory */ 752#endif 753 754int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */ 755int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */ 756uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */ 757uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */ 758uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */ 759uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */ 760size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */ 761int _dtrace_argmax = 32; /* default maximum number of probe arguments */ 762 763int _dtrace_debug = 0; /* debug messages enabled (off) */ 764const char *const _dtrace_version = DT_VERS_STRING; /* API version string */ 765int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */ 766 767typedef struct dt_fdlist { 768 int *df_fds; /* array of provider driver file descriptors */ 769 uint_t df_ents; /* number of valid elements in df_fds[] */ 770 uint_t df_size; /* size of df_fds[] */ 771} dt_fdlist_t; 772 773#if defined(sun) 774#pragma init(_dtrace_init) 775#else 776void _dtrace_init(void) __attribute__ ((constructor)); 777#endif 778void 779_dtrace_init(void) 780{ 781 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL; 782 783 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) { 784 if (rd_init(_dtrace_rdvers) == RD_OK) 785 break; 786 } 787#if defined(__i386__) 788 /* make long doubles 64 bits -sson */ 789 (void) fpsetprec(FP_PE); 790#endif 791} 792 793static dtrace_hdl_t * 794set_open_errno(dtrace_hdl_t *dtp, int *errp, int err) 795{ 796 if (dtp != NULL) 797 dtrace_close(dtp); 798 if (errp != NULL) 799 *errp = err; 800 return (NULL); 801} 802 803static void 804dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp) 805{ 806 dt_provmod_t *prov; 807 char path[PATH_MAX]; 808 int fd; 809#if defined(sun) 810 struct dirent *dp, *ep; 811 DIR *dirp; 812 813 if ((dirp = opendir(_dtrace_provdir)) == NULL) 814 return; /* failed to open directory; just skip it */ 815 816 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1); 817 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1); 818 819 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) { 820 if (dp->d_name[0] == '.') 821 continue; /* skip "." and ".." */ 822 823 if (dfp->df_ents == dfp->df_size) { 824 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 825 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 826 827 if (fds == NULL) 828 break; /* skip the rest of this directory */ 829 830 dfp->df_fds = fds; 831 dfp->df_size = size; 832 } 833 834 (void) snprintf(path, sizeof (path), "%s/%s", 835 _dtrace_provdir, dp->d_name); 836 837 if ((fd = open(path, O_RDONLY)) == -1) 838 continue; /* failed to open driver; just skip it */ 839 840 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 841 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) { 842 free(prov); 843 (void) close(fd); 844 break; 845 } 846 847 (void) strcpy(prov->dp_name, dp->d_name); 848 prov->dp_next = *provmod; 849 *provmod = prov; 850 851 dt_dprintf("opened provider %s\n", dp->d_name); 852 dfp->df_fds[dfp->df_ents++] = fd; 853 } 854 855 (void) closedir(dirp); 856#else 857 char *p; 858 char *p1; 859 char *p_providers = NULL; 860 int error; 861 size_t len = 0; 862 863 /* 864 * Loop to allocate/reallocate memory for the string of provider 865 * names and retry: 866 */ 867 while(1) { 868 /* 869 * The first time around, get the string length. The next time, 870 * hopefully we've allocated enough memory. 871 */ 872 error = sysctlbyname("debug.dtrace.providers",p_providers,&len,NULL,0); 873 if (len == 0) 874 /* No providers? That's strange. Where's dtrace? */ 875 break; 876 else if (error == 0 && p_providers == NULL) { 877 /* 878 * Allocate the initial memory which should be enough 879 * unless another provider loads before we have 880 * time to go back and get the string. 881 */ 882 if ((p_providers = malloc(len)) == NULL) 883 /* How do we report errors here? */ 884 return; 885 } else if (error == -1 && errno == ENOMEM) { 886 /* 887 * The current buffer isn't large enough, so 888 * reallocate it. We normally won't need to do this 889 * because providers aren't being loaded all the time. 890 */ 891 if ((p = realloc(p_providers,len)) == NULL) 892 /* How do we report errors here? */ 893 return; 894 p_providers = p; 895 } else 896 break; 897 } 898 899 /* Check if we got a string of provider names: */ 900 if (error == 0 && len > 0 && p_providers != NULL) { 901 p = p_providers; 902 903 /* 904 * Parse the string containing the space separated 905 * provider names. 906 */ 907 while ((p1 = strsep(&p," ")) != NULL) { 908 if (dfp->df_ents == dfp->df_size) { 909 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 910 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 911 912 if (fds == NULL) 913 break; 914 915 dfp->df_fds = fds; 916 dfp->df_size = size; 917 } 918 919 (void) snprintf(path, sizeof (path), "/dev/dtrace/%s", p1); 920 921 if ((fd = open(path, O_RDONLY)) == -1) 922 continue; /* failed to open driver; just skip it */ 923 924 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 925 (prov->dp_name = malloc(strlen(p1) + 1)) == NULL) { 926 free(prov); 927 (void) close(fd); 928 break; 929 } 930 931 (void) strcpy(prov->dp_name, p1); 932 prov->dp_next = *provmod; 933 *provmod = prov; 934 935 dt_dprintf("opened provider %s\n", p1); 936 dfp->df_fds[dfp->df_ents++] = fd; 937 } 938 } 939 if (p_providers != NULL) 940 free(p_providers); 941#endif 942} 943 944static void 945dt_provmod_destroy(dt_provmod_t **provmod) 946{ 947 dt_provmod_t *next, *current; 948 949 for (current = *provmod; current != NULL; current = next) { 950 next = current->dp_next; 951 free(current->dp_name); 952 free(current); 953 } 954 955 *provmod = NULL; 956} 957 958#if defined(sun) 959static const char * 960dt_get_sysinfo(int cmd, char *buf, size_t len) 961{ 962 ssize_t rv = sysinfo(cmd, buf, len); 963 char *p = buf; 964 965 if (rv < 0 || rv > len) 966 (void) snprintf(buf, len, "%s", "Unknown"); 967 968 while ((p = strchr(p, '.')) != NULL) 969 *p++ = '_'; 970 971 return (buf); 972} 973#endif 974 975static dtrace_hdl_t * 976dt_vopen(int version, int flags, int *errp, 977 const dtrace_vector_t *vector, void *arg) 978{ 979 dtrace_hdl_t *dtp = NULL; 980 int dtfd = -1, ftfd = -1, fterr = 0; 981 dtrace_prog_t *pgp; 982 dt_module_t *dmp; 983 dt_provmod_t *provmod = NULL; 984 int i, err; 985 struct rlimit rl; 986 987 const dt_intrinsic_t *dinp; 988 const dt_typedef_t *dtyp; 989 const dt_ident_t *idp; 990 991 dtrace_typeinfo_t dtt; 992 ctf_funcinfo_t ctc; 993 ctf_arinfo_t ctr; 994 995 dt_fdlist_t df = { NULL, 0, 0 }; 996 997 char isadef[32], utsdef[32]; 998 char s1[64], s2[64]; 999 1000 if (version <= 0) 1001 return (set_open_errno(dtp, errp, EINVAL)); 1002 1003 if (version > DTRACE_VERSION) 1004 return (set_open_errno(dtp, errp, EDT_VERSION)); 1005 1006 if (version < DTRACE_VERSION) { 1007 /* 1008 * Currently, increasing the library version number is used to 1009 * denote a binary incompatible change. That is, a consumer 1010 * of the library cannot run on a version of the library with 1011 * a higher DTRACE_VERSION number than the consumer compiled 1012 * against. Once the library API has been committed to, 1013 * backwards binary compatibility will be required; at that 1014 * time, this check should change to return EDT_OVERSION only 1015 * if the specified version number is less than the version 1016 * number at the time of interface commitment. 1017 */ 1018 return (set_open_errno(dtp, errp, EDT_OVERSION)); 1019 } 1020 1021 if (flags & ~DTRACE_O_MASK) 1022 return (set_open_errno(dtp, errp, EINVAL)); 1023 1024 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32)) 1025 return (set_open_errno(dtp, errp, EINVAL)); 1026 1027 if (vector == NULL && arg != NULL) 1028 return (set_open_errno(dtp, errp, EINVAL)); 1029 1030 if (elf_version(EV_CURRENT) == EV_NONE) 1031 return (set_open_errno(dtp, errp, EDT_ELFVERSION)); 1032 1033 if (vector != NULL || (flags & DTRACE_O_NODEV)) 1034 goto alloc; /* do not attempt to open dtrace device */ 1035 1036 /* 1037 * Before we get going, crank our limit on file descriptors up to the 1038 * hard limit. This is to allow for the fact that libproc keeps file 1039 * descriptors to objects open for the lifetime of the proc handle; 1040 * without raising our hard limit, we would have an acceptably small 1041 * bound on the number of processes that we could concurrently 1042 * instrument with the pid provider. 1043 */ 1044 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) { 1045 rl.rlim_cur = rl.rlim_max; 1046 (void) setrlimit(RLIMIT_NOFILE, &rl); 1047 } 1048 1049 /* 1050 * Get the device path of each of the providers. We hold them open 1051 * in the df.df_fds list until we open the DTrace driver itself, 1052 * allowing us to see all of the probes provided on this system. Once 1053 * we have the DTrace driver open, we can safely close all the providers 1054 * now that they have registered with the framework. 1055 */ 1056 dt_provmod_open(&provmod, &df); 1057 1058 dtfd = open("/dev/dtrace/dtrace", O_RDWR); 1059 err = errno; /* save errno from opening dtfd */ 1060 1061#if defined(sun) 1062 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR); 1063#else 1064 ftfd = open("/dev/dtrace/fasttrap", O_RDWR); 1065#endif 1066 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */ 1067 1068 while (df.df_ents-- != 0) 1069 (void) close(df.df_fds[df.df_ents]); 1070 1071 free(df.df_fds); 1072 1073 /* 1074 * If we failed to open the dtrace device, fail dtrace_open(). 1075 * We convert some kernel errnos to custom libdtrace errnos to 1076 * improve the resulting message from the usual strerror(). 1077 */ 1078 if (dtfd == -1) { 1079 dt_provmod_destroy(&provmod); 1080 switch (err) { 1081 case ENOENT: 1082 err = EDT_NOENT; 1083 break; 1084 case EBUSY: 1085 err = EDT_BUSY; 1086 break; 1087 case EACCES: 1088 err = EDT_ACCESS; 1089 break; 1090 } 1091 return (set_open_errno(dtp, errp, err)); 1092 } 1093 1094 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC); 1095 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC); 1096 1097alloc: 1098 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL) 1099 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1100 1101 bzero(dtp, sizeof (dtrace_hdl_t)); 1102 dtp->dt_oflags = flags; 1103#if defined(sun) 1104 dtp->dt_prcmode = DT_PROC_STOP_PREINIT; 1105#else 1106 dtp->dt_prcmode = DT_PROC_STOP_MAIN; 1107#endif 1108 dtp->dt_linkmode = DT_LINK_KERNEL; 1109 dtp->dt_linktype = DT_LTYP_ELF; 1110 dtp->dt_xlatemode = DT_XL_STATIC; 1111 dtp->dt_stdcmode = DT_STDC_XA; 1112 dtp->dt_version = version; 1113 dtp->dt_fd = dtfd; 1114 dtp->dt_ftfd = ftfd; 1115 dtp->dt_fterr = fterr; 1116 dtp->dt_cdefs_fd = -1; 1117 dtp->dt_ddefs_fd = -1; 1118#if defined(sun) 1119 dtp->dt_stdout_fd = -1; 1120#else 1121 dtp->dt_freopen_fp = NULL; 1122#endif 1123 dtp->dt_modbuckets = _dtrace_strbuckets; 1124 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *)); 1125 dtp->dt_provbuckets = _dtrace_strbuckets; 1126 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *)); 1127 dt_proc_hash_create(dtp); 1128 dtp->dt_vmax = DT_VERS_LATEST; 1129 dtp->dt_cpp_path = strdup(_dtrace_defcpp); 1130 dtp->dt_cpp_argv = malloc(sizeof (char *)); 1131 dtp->dt_cpp_argc = 1; 1132 dtp->dt_cpp_args = 1; 1133 dtp->dt_ld_path = strdup(_dtrace_defld); 1134 dtp->dt_provmod = provmod; 1135 dtp->dt_vector = vector; 1136 dtp->dt_varg = arg; 1137 dt_dof_init(dtp); 1138 (void) uname(&dtp->dt_uts); 1139 1140 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL || 1141 dtp->dt_procs == NULL || dtp->dt_ld_path == NULL || 1142 dtp->dt_cpp_path == NULL || dtp->dt_cpp_argv == NULL) 1143 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1144 1145 for (i = 0; i < DTRACEOPT_MAX; i++) 1146 dtp->dt_options[i] = DTRACEOPT_UNSET; 1147 1148 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path); 1149 1150#if defined(sun) 1151 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u", 1152 (uint_t)(sizeof (void *) * NBBY)); 1153 1154 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s", 1155 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)), 1156 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2))); 1157 1158 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL || 1159 dt_cpp_add_arg(dtp, "-D__unix") == NULL || 1160 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL || 1161 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL || 1162 dt_cpp_add_arg(dtp, isadef) == NULL || 1163 dt_cpp_add_arg(dtp, utsdef) == NULL) 1164 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1165#endif 1166 1167 if (flags & DTRACE_O_NODEV) 1168 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf)); 1169 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0) 1170 return (set_open_errno(dtp, errp, errno)); 1171 1172 if (flags & DTRACE_O_LP64) 1173 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64; 1174 else if (flags & DTRACE_O_ILP32) 1175 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32; 1176 1177#ifdef __sparc 1178 /* 1179 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h> 1180 * and __sparcv9 is defined if we are doing a 64-bit compile. 1181 */ 1182 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL) 1183 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1184 1185 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 && 1186 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL) 1187 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1188#endif 1189 1190#if defined(sun) 1191#ifdef __x86 1192 /* 1193 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit 1194 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC, 1195 * they are defined exclusive of one another (see PSARC 2004/619). 1196 */ 1197 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 1198 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL) 1199 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1200 } else { 1201 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL) 1202 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1203 } 1204#endif 1205#else 1206#if defined(__amd64__) || defined(__i386__) 1207 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 1208 if (dt_cpp_add_arg(dtp, "-m64") == NULL) 1209 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1210 } else { 1211 if (dt_cpp_add_arg(dtp, "-m32") == NULL) 1212 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1213 } 1214#endif 1215#endif 1216 1217 if (dtp->dt_conf.dtc_difversion < DIF_VERSION) 1218 return (set_open_errno(dtp, errp, EDT_DIFVERS)); 1219 1220 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) 1221 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32)); 1222 else 1223 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64)); 1224 1225 /* 1226 * On FreeBSD the kernel module name can't be hard-coded. The 1227 * 'kern.bootfile' sysctl value tells us exactly which file is being 1228 * used as the kernel. 1229 */ 1230#if !defined(sun) 1231 { 1232 char bootfile[MAXPATHLEN]; 1233 char *p; 1234 int i; 1235 size_t len = sizeof(bootfile); 1236 1237 /* This call shouldn't fail, but use a default just in case. */ 1238 if (sysctlbyname("kern.bootfile", bootfile, &len, NULL, 0) != 0) 1239 strlcpy(bootfile, "kernel", sizeof(bootfile)); 1240 1241 if ((p = strrchr(bootfile, '/')) != NULL) 1242 p++; 1243 else 1244 p = bootfile; 1245 1246 /* 1247 * Format the global variables based on the kernel module name. 1248 */ 1249 snprintf(curthread_str, sizeof(curthread_str), "%s`struct thread *",p); 1250 snprintf(intmtx_str, sizeof(intmtx_str), "int(%s`struct mtx *)",p); 1251 snprintf(threadmtx_str, sizeof(threadmtx_str), "struct thread *(%s`struct mtx *)",p); 1252 snprintf(rwlock_str, sizeof(rwlock_str), "int(%s`struct rwlock *)",p); 1253 snprintf(sxlock_str, sizeof(sxlock_str), "int(%s`struct sxlock *)",p); 1254 } 1255#endif 1256 1257 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX); 1258 dtp->dt_aggs = dt_idhash_create("aggregation", NULL, 1259 DTRACE_AGGVARIDNONE + 1, UINT_MAX); 1260 1261 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals, 1262 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1263 1264 dtp->dt_tls = dt_idhash_create("thread local", NULL, 1265 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1266 1267 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL || 1268 dtp->dt_globals == NULL || dtp->dt_tls == NULL) 1269 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1270 1271 /* 1272 * Populate the dt_macros identifier hash table by hand: we can't use 1273 * the dt_idhash_populate() mechanism because we're not yet compiling 1274 * and dtrace_update() needs to immediately reference these idents. 1275 */ 1276 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) { 1277 if (dt_idhash_insert(dtp->dt_macros, idp->di_name, 1278 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr, 1279 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw, 1280 idp->di_iarg, 0) == NULL) 1281 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1282 } 1283 1284 /* 1285 * Update the module list using /system/object and load the values for 1286 * the macro variable definitions according to the current process. 1287 */ 1288 dtrace_update(dtp); 1289 1290 /* 1291 * Select the intrinsics and typedefs we want based on the data model. 1292 * The intrinsics are under "C". The typedefs are added under "D". 1293 */ 1294 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) { 1295 dinp = _dtrace_intrinsics_32; 1296 dtyp = _dtrace_typedefs_32; 1297 } else { 1298 dinp = _dtrace_intrinsics_64; 1299 dtyp = _dtrace_typedefs_64; 1300 } 1301 1302 /* 1303 * Create a dynamic CTF container under the "C" scope for intrinsic 1304 * types and types defined in ANSI-C header files that are included. 1305 */ 1306 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL) 1307 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1308 1309 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1310 return (set_open_errno(dtp, errp, EDT_CTF)); 1311 1312 dt_dprintf("created CTF container for %s (%p)\n", 1313 dmp->dm_name, (void *)dmp->dm_ctfp); 1314 1315 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1316 ctf_setspecific(dmp->dm_ctfp, dmp); 1317 1318 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1319 dmp->dm_modid = -1; /* no module ID */ 1320 1321 /* 1322 * Fill the dynamic "C" CTF container with all of the intrinsic 1323 * integer and floating-point types appropriate for this data model. 1324 */ 1325 for (; dinp->din_name != NULL; dinp++) { 1326 if (dinp->din_kind == CTF_K_INTEGER) { 1327 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT, 1328 dinp->din_name, &dinp->din_data); 1329 } else { 1330 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT, 1331 dinp->din_name, &dinp->din_data); 1332 } 1333 1334 if (err == CTF_ERR) { 1335 dt_dprintf("failed to add %s to C container: %s\n", 1336 dinp->din_name, ctf_errmsg( 1337 ctf_errno(dmp->dm_ctfp))); 1338 return (set_open_errno(dtp, errp, EDT_CTF)); 1339 } 1340 } 1341 1342 if (ctf_update(dmp->dm_ctfp) != 0) { 1343 dt_dprintf("failed to update C container: %s\n", 1344 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1345 return (set_open_errno(dtp, errp, EDT_CTF)); 1346 } 1347 1348 /* 1349 * Add intrinsic pointer types that are needed to initialize printf 1350 * format dictionary types (see table in dt_printf.c). 1351 */ 1352 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1353 ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1354 1355 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1356 ctf_lookup_by_name(dmp->dm_ctfp, "char")); 1357 1358 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1359 ctf_lookup_by_name(dmp->dm_ctfp, "int")); 1360 1361 if (ctf_update(dmp->dm_ctfp) != 0) { 1362 dt_dprintf("failed to update C container: %s\n", 1363 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1364 return (set_open_errno(dtp, errp, EDT_CTF)); 1365 } 1366 1367 /* 1368 * Create a dynamic CTF container under the "D" scope for types that 1369 * are defined by the D program itself or on-the-fly by the D compiler. 1370 * The "D" CTF container is a child of the "C" CTF container. 1371 */ 1372 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL) 1373 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1374 1375 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1376 return (set_open_errno(dtp, errp, EDT_CTF)); 1377 1378 dt_dprintf("created CTF container for %s (%p)\n", 1379 dmp->dm_name, (void *)dmp->dm_ctfp); 1380 1381 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1382 ctf_setspecific(dmp->dm_ctfp, dmp); 1383 1384 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1385 dmp->dm_modid = -1; /* no module ID */ 1386 1387 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) { 1388 dt_dprintf("failed to import D parent container: %s\n", 1389 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1390 return (set_open_errno(dtp, errp, EDT_CTF)); 1391 } 1392 1393 /* 1394 * Fill the dynamic "D" CTF container with all of the built-in typedefs 1395 * that we need to use for our D variable and function definitions. 1396 * This ensures that basic inttypes.h names are always available to us. 1397 */ 1398 for (; dtyp->dty_src != NULL; dtyp++) { 1399 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1400 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp, 1401 dtyp->dty_src)) == CTF_ERR) { 1402 dt_dprintf("failed to add typedef %s %s to D " 1403 "container: %s", dtyp->dty_src, dtyp->dty_dst, 1404 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1405 return (set_open_errno(dtp, errp, EDT_CTF)); 1406 } 1407 } 1408 1409 /* 1410 * Insert a CTF ID corresponding to a pointer to a type of kind 1411 * CTF_K_FUNCTION we can use in the compiler for function pointers. 1412 * CTF treats all function pointers as "int (*)()" so we only need one. 1413 */ 1414 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int"); 1415 ctc.ctc_argc = 0; 1416 ctc.ctc_flags = 0; 1417 1418 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp, 1419 CTF_ADD_ROOT, &ctc, NULL); 1420 1421 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp, 1422 CTF_ADD_ROOT, dtp->dt_type_func); 1423 1424 /* 1425 * We also insert CTF definitions for the special D intrinsic types 1426 * string and <DYN> into the D container. The string type is added 1427 * as a typedef of char[n]. The <DYN> type is an alias for void. 1428 * We compare types to these special CTF ids throughout the compiler. 1429 */ 1430 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char"); 1431 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long"); 1432 ctr.ctr_nelems = _dtrace_strsize; 1433 1434 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1435 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr)); 1436 1437 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1438 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1439 1440 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1441 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1442 1443 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1444 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1445 1446 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1447 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1448 1449 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR || 1450 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR || 1451 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR || 1452 dtp->dt_type_usymaddr == CTF_ERR) { 1453 dt_dprintf("failed to add intrinsic to D container: %s\n", 1454 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1455 return (set_open_errno(dtp, errp, EDT_CTF)); 1456 } 1457 1458 if (ctf_update(dmp->dm_ctfp) != 0) { 1459 dt_dprintf("failed update D container: %s\n", 1460 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1461 return (set_open_errno(dtp, errp, EDT_CTF)); 1462 } 1463 1464 /* 1465 * Initialize the integer description table used to convert integer 1466 * constants to the appropriate types. Refer to the comments above 1467 * dt_node_int() for a complete description of how this table is used. 1468 */ 1469 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) { 1470 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY, 1471 dtp->dt_ints[i].did_name, &dtt) != 0) { 1472 dt_dprintf("failed to lookup integer type %s: %s\n", 1473 dtp->dt_ints[i].did_name, 1474 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1475 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1476 } 1477 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp; 1478 dtp->dt_ints[i].did_type = dtt.dtt_type; 1479 } 1480 1481 /* 1482 * Now that we've created the "C" and "D" containers, move them to the 1483 * start of the module list so that these types and symbols are found 1484 * first (for stability) when iterating through the module list. 1485 */ 1486 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs); 1487 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs); 1488 1489 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs); 1490 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs); 1491 1492 if (dt_pfdict_create(dtp) == -1) 1493 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1494 1495 /* 1496 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default 1497 * because without /dev/dtrace open, we will not be able to load the 1498 * names and attributes of any providers or probes from the kernel. 1499 */ 1500 if (flags & DTRACE_O_NODEV) 1501 dtp->dt_cflags |= DTRACE_C_ZDEFS; 1502 1503 /* 1504 * Load hard-wired inlines into the definition cache by calling the 1505 * compiler on the raw definition string defined above. 1506 */ 1507 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire, 1508 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) { 1509 dt_dprintf("failed to load hard-wired definitions: %s\n", 1510 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1511 return (set_open_errno(dtp, errp, EDT_HARDWIRE)); 1512 } 1513 1514 dt_program_destroy(dtp, pgp); 1515 1516 /* 1517 * Set up the default DTrace library path. Once set, the next call to 1518 * dt_compile() will compile all the libraries. We intentionally defer 1519 * library processing to improve overhead for clients that don't ever 1520 * compile, and to provide better error reporting (because the full 1521 * reporting of compiler errors requires dtrace_open() to succeed). 1522 */ 1523 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0) 1524 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1525 1526 return (dtp); 1527} 1528 1529dtrace_hdl_t * 1530dtrace_open(int version, int flags, int *errp) 1531{ 1532 return (dt_vopen(version, flags, errp, NULL, NULL)); 1533} 1534 1535dtrace_hdl_t * 1536dtrace_vopen(int version, int flags, int *errp, 1537 const dtrace_vector_t *vector, void *arg) 1538{ 1539 return (dt_vopen(version, flags, errp, vector, arg)); 1540} 1541 1542void 1543dtrace_close(dtrace_hdl_t *dtp) 1544{ 1545 dt_ident_t *idp, *ndp; 1546 dt_module_t *dmp; 1547 dt_provider_t *pvp; 1548 dtrace_prog_t *pgp; 1549 dt_xlator_t *dxp; 1550 dt_dirpath_t *dirp; 1551 int i; 1552 1553 if (dtp->dt_procs != NULL) 1554 dt_proc_hash_destroy(dtp); 1555 1556 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL) 1557 dt_program_destroy(dtp, pgp); 1558 1559 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL) 1560 dt_xlator_destroy(dtp, dxp); 1561 1562 dt_free(dtp, dtp->dt_xlatormap); 1563 1564 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) { 1565 ndp = idp->di_next; 1566 dt_ident_destroy(idp); 1567 } 1568 1569 if (dtp->dt_macros != NULL) 1570 dt_idhash_destroy(dtp->dt_macros); 1571 if (dtp->dt_aggs != NULL) 1572 dt_idhash_destroy(dtp->dt_aggs); 1573 if (dtp->dt_globals != NULL) 1574 dt_idhash_destroy(dtp->dt_globals); 1575 if (dtp->dt_tls != NULL) 1576 dt_idhash_destroy(dtp->dt_tls); 1577 1578 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL) 1579 dt_module_destroy(dtp, dmp); 1580 1581 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL) 1582 dt_provider_destroy(dtp, pvp); 1583 1584 if (dtp->dt_fd != -1) 1585 (void) close(dtp->dt_fd); 1586 if (dtp->dt_ftfd != -1) 1587 (void) close(dtp->dt_ftfd); 1588 if (dtp->dt_cdefs_fd != -1) 1589 (void) close(dtp->dt_cdefs_fd); 1590 if (dtp->dt_ddefs_fd != -1) 1591 (void) close(dtp->dt_ddefs_fd); 1592#if defined(sun) 1593 if (dtp->dt_stdout_fd != -1) 1594 (void) close(dtp->dt_stdout_fd); 1595#else 1596 if (dtp->dt_freopen_fp != NULL) 1597 (void) fclose(dtp->dt_freopen_fp); 1598#endif 1599 1600 dt_epid_destroy(dtp); 1601 dt_aggid_destroy(dtp); 1602 dt_format_destroy(dtp); 1603 dt_buffered_destroy(dtp); 1604 dt_aggregate_destroy(dtp); 1605 free(dtp->dt_buf.dtbd_data); 1606 dt_pfdict_destroy(dtp); 1607 dt_provmod_destroy(&dtp->dt_provmod); 1608 dt_dof_fini(dtp); 1609 1610 for (i = 1; i < dtp->dt_cpp_argc; i++) 1611 free(dtp->dt_cpp_argv[i]); 1612 1613 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) { 1614 dt_list_delete(&dtp->dt_lib_path, dirp); 1615 free(dirp->dir_path); 1616 free(dirp); 1617 } 1618 1619 free(dtp->dt_cpp_argv); 1620 free(dtp->dt_cpp_path); 1621 free(dtp->dt_ld_path); 1622 1623 free(dtp->dt_mods); 1624 free(dtp->dt_provs); 1625 free(dtp); 1626} 1627 1628int 1629dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods) 1630{ 1631 dt_provmod_t *prov; 1632 int i = 0; 1633 1634 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) { 1635 if (i < nmods) 1636 mods[i] = prov->dp_name; 1637 } 1638 1639 return (i); 1640} 1641 1642int 1643dtrace_ctlfd(dtrace_hdl_t *dtp) 1644{ 1645 return (dtp->dt_fd); 1646} 1647