dt_open.c revision 248690
1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22/* 23 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright (c) 2011, Joyent, Inc. All rights reserved. 25 */ 26 27#include <sys/types.h> 28#if defined(sun) 29#include <sys/modctl.h> 30#include <sys/systeminfo.h> 31#endif 32#include <sys/resource.h> 33 34#include <libelf.h> 35#include <strings.h> 36#if defined(sun) 37#include <alloca.h> 38#endif 39#include <limits.h> 40#include <unistd.h> 41#include <stdlib.h> 42#include <stdio.h> 43#include <fcntl.h> 44#include <errno.h> 45#include <assert.h> 46 47#define _POSIX_PTHREAD_SEMANTICS 48#include <dirent.h> 49#undef _POSIX_PTHREAD_SEMANTICS 50 51#include <dt_impl.h> 52#include <dt_program.h> 53#include <dt_module.h> 54#include <dt_printf.h> 55#include <dt_string.h> 56#include <dt_provider.h> 57#if !defined(sun) 58#include <sys/sysctl.h> 59#include <string.h> 60#endif 61#if defined(__i386__) 62#include <ieeefp.h> 63#endif 64 65/* 66 * Stability and versioning definitions. These #defines are used in the tables 67 * of identifiers below to fill in the attribute and version fields associated 68 * with each identifier. The DT_ATTR_* macros are a convenience to permit more 69 * concise declarations of common attributes such as Stable/Stable/Common. The 70 * DT_VERS_* macros declare the encoded integer values of all versions used so 71 * far. DT_VERS_LATEST must correspond to the latest version value among all 72 * versions exported by the D compiler. DT_VERS_STRING must be an ASCII string 73 * that contains DT_VERS_LATEST within it along with any suffixes (e.g. Beta). 74 * You must update DT_VERS_LATEST and DT_VERS_STRING when adding a new version, 75 * and then add the new version to the _dtrace_versions[] array declared below. 76 * Refer to the Solaris Dynamic Tracing Guide Stability and Versioning chapters 77 * respectively for an explanation of these DTrace features and their values. 78 * 79 * NOTE: Although the DTrace versioning scheme supports the labeling and 80 * introduction of incompatible changes (e.g. dropping an interface in a 81 * major release), the libdtrace code does not currently support this. 82 * All versions are assumed to strictly inherit from one another. If 83 * we ever need to provide divergent interfaces, this will need work. 84 */ 85#define DT_ATTR_STABCMN { DTRACE_STABILITY_STABLE, \ 86 DTRACE_STABILITY_STABLE, DTRACE_CLASS_COMMON } 87 88#define DT_ATTR_EVOLCMN { DTRACE_STABILITY_EVOLVING, \ 89 DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_COMMON \ 90} 91 92/* 93 * The version number should be increased for every customer visible release 94 * of Solaris. The major number should be incremented when a fundamental 95 * change has been made that would affect all consumers, and would reflect 96 * sweeping changes to DTrace or the D language. The minor number should be 97 * incremented when a change is introduced that could break scripts that had 98 * previously worked; for example, adding a new built-in variable could break 99 * a script which was already using that identifier. The micro number should 100 * be changed when introducing functionality changes or major bug fixes that 101 * do not affect backward compatibility -- this is merely to make capabilities 102 * easily determined from the version number. Minor bugs do not require any 103 * modification to the version number. 104 */ 105#define DT_VERS_1_0 DT_VERSION_NUMBER(1, 0, 0) 106#define DT_VERS_1_1 DT_VERSION_NUMBER(1, 1, 0) 107#define DT_VERS_1_2 DT_VERSION_NUMBER(1, 2, 0) 108#define DT_VERS_1_2_1 DT_VERSION_NUMBER(1, 2, 1) 109#define DT_VERS_1_2_2 DT_VERSION_NUMBER(1, 2, 2) 110#define DT_VERS_1_3 DT_VERSION_NUMBER(1, 3, 0) 111#define DT_VERS_1_4 DT_VERSION_NUMBER(1, 4, 0) 112#define DT_VERS_1_4_1 DT_VERSION_NUMBER(1, 4, 1) 113#define DT_VERS_1_5 DT_VERSION_NUMBER(1, 5, 0) 114#define DT_VERS_1_6 DT_VERSION_NUMBER(1, 6, 0) 115#define DT_VERS_1_6_1 DT_VERSION_NUMBER(1, 6, 1) 116#define DT_VERS_1_6_2 DT_VERSION_NUMBER(1, 6, 2) 117#define DT_VERS_1_6_3 DT_VERSION_NUMBER(1, 6, 3) 118#define DT_VERS_1_7 DT_VERSION_NUMBER(1, 7, 0) 119#define DT_VERS_1_7_1 DT_VERSION_NUMBER(1, 7, 1) 120#define DT_VERS_LATEST DT_VERS_1_7_1 121#define DT_VERS_STRING "Sun D 1.7.1" 122 123const dt_version_t _dtrace_versions[] = { 124 DT_VERS_1_0, /* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */ 125 DT_VERS_1_1, /* D API 1.1.0 Solaris Express 6/05 */ 126 DT_VERS_1_2, /* D API 1.2.0 Solaris 10 Update 1 */ 127 DT_VERS_1_2_1, /* D API 1.2.1 Solaris Express 4/06 */ 128 DT_VERS_1_2_2, /* D API 1.2.2 Solaris Express 6/06 */ 129 DT_VERS_1_3, /* D API 1.3 Solaris Express 10/06 */ 130 DT_VERS_1_4, /* D API 1.4 Solaris Express 2/07 */ 131 DT_VERS_1_4_1, /* D API 1.4.1 Solaris Express 4/07 */ 132 DT_VERS_1_5, /* D API 1.5 Solaris Express 7/07 */ 133 DT_VERS_1_6, /* D API 1.6 */ 134 DT_VERS_1_6_1, /* D API 1.6.1 */ 135 DT_VERS_1_6_2, /* D API 1.6.2 */ 136 DT_VERS_1_6_3, /* D API 1.6.3 */ 137 DT_VERS_1_7, /* D API 1.7 */ 138 DT_VERS_1_7_1, /* D API 1.7.1 */ 139 0 140}; 141 142/* 143 * Global variables that are formatted on FreeBSD based on the kernel file name. 144 */ 145#if !defined(sun) 146static char curthread_str[MAXPATHLEN]; 147static char intmtx_str[MAXPATHLEN]; 148static char threadmtx_str[MAXPATHLEN]; 149static char rwlock_str[MAXPATHLEN]; 150static char sxlock_str[MAXPATHLEN]; 151#endif 152 153/* 154 * Table of global identifiers. This is used to populate the global identifier 155 * hash when a new dtrace client open occurs. For more info see dt_ident.h. 156 * The global identifiers that represent functions use the dt_idops_func ops 157 * and specify the private data pointer as a prototype string which is parsed 158 * when the identifier is first encountered. These prototypes look like ANSI 159 * C function prototypes except that the special symbol "@" can be used as a 160 * wildcard to represent a single parameter of any type (i.e. any dt_node_t). 161 * The standard "..." notation can also be used to represent varargs. An empty 162 * parameter list is taken to mean void (that is, no arguments are permitted). 163 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional 164 * argument. 165 */ 166static const dt_ident_t _dtrace_globals[] = { 167{ "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0, 168 &dt_idops_func, "void *(size_t)" }, 169{ "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0, 170 &dt_idops_type, "int64_t" }, 171{ "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0, 172 &dt_idops_type, "int64_t" }, 173{ "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0, 174 &dt_idops_type, "int64_t" }, 175{ "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0, 176 &dt_idops_type, "int64_t" }, 177{ "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0, 178 &dt_idops_type, "int64_t" }, 179{ "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0, 180 &dt_idops_type, "int64_t" }, 181{ "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0, 182 &dt_idops_type, "int64_t" }, 183{ "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0, 184 &dt_idops_type, "int64_t" }, 185{ "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0, 186 &dt_idops_type, "int64_t" }, 187{ "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0, 188 &dt_idops_type, "int64_t" }, 189{ "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0, 190 &dt_idops_args, NULL }, 191{ "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0, 192 &dt_idops_func, "void(@)" }, 193{ "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0, 194 &dt_idops_func, "string(const char *)" }, 195{ "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0, 196 &dt_idops_func, "void(void *, void *, size_t)" }, 197{ "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT, 198 DT_ATTR_STABCMN, DT_VERS_1_0, 199 &dt_idops_func, "void()" }, 200{ "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0, 201 &dt_idops_type, "uintptr_t" }, 202{ "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0, 203 &dt_idops_func, "void(int)" }, 204{ "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN, 205 DT_VERS_1_0, &dt_idops_func, "string(const char *)" }, 206{ "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0, 207 &dt_idops_func, "void(...)" }, 208{ "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0, 209 &dt_idops_func, "void(int)" }, 210{ "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0, 211 &dt_idops_func, "void *(uintptr_t, size_t)" }, 212{ "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR, 213 DT_ATTR_STABCMN, DT_VERS_1_0, 214 &dt_idops_func, "string(uintptr_t, [size_t])" }, 215{ "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN, 216 DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" }, 217{ "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0, 218 &dt_idops_func, "void(void *, uintptr_t, size_t)" }, 219{ "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR, 220 DT_ATTR_STABCMN, DT_VERS_1_0, 221 &dt_idops_func, "void(char *, uintptr_t, size_t)" }, 222{ "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0, 223 &dt_idops_func, "void()" }, 224{ "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD, 225 { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE, 226 DTRACE_CLASS_COMMON }, DT_VERS_1_0, 227#if defined(sun) 228 &dt_idops_type, "genunix`kthread_t *" }, 229#else 230 &dt_idops_type, curthread_str }, 231#endif 232{ "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME, 233 DT_ATTR_EVOLCMN, DT_VERS_1_0, 234 &dt_idops_func, "string(void *, int64_t)" }, 235{ "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN, 236 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 237{ "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0, 238 &dt_idops_func, "string(const char *)" }, 239{ "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0, 240 &dt_idops_func, "void(int)" }, 241{ "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0, 242 &dt_idops_type, "uint_t" }, 243{ "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0, 244 &dt_idops_type, "int" }, 245{ "execargs", DT_IDENT_SCALAR, 0, DIF_VAR_EXECARGS, 246 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 247{ "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME, 248 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 249{ "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0, 250 &dt_idops_func, "void(int)" }, 251{ "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN, 252 DT_VERS_1_1, &dt_idops_func, "void(@, ...)" }, 253{ "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN, 254 DT_VERS_1_0, &dt_idops_func, "void()" }, 255{ "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 256 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 257{ "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR, 258 DT_ATTR_EVOLCMN, DT_VERS_1_0, 259 &dt_idops_func, "genunix`major_t(genunix`dev_t)" }, 260{ "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR, 261 DT_ATTR_EVOLCMN, DT_VERS_1_0, 262 &dt_idops_func, "genunix`minor_t(genunix`dev_t)" }, 263{ "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 264 &dt_idops_func, "uint32_t(uint32_t)" }, 265{ "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 266 &dt_idops_func, "uint64_t(uint64_t)" }, 267{ "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 268 &dt_idops_func, "uint16_t(uint16_t)" }, 269{ "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0, 270 &dt_idops_type, "gid_t" }, 271{ "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0, 272 &dt_idops_type, "uint_t" }, 273{ "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 274 &dt_idops_func, "int(const char *, const char *, [int])" }, 275{ "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN, 276#if defined(sun) 277 DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" }, 278#else 279 DT_VERS_1_5, &dt_idops_func, "string(in_addr_t *)" }, 280#endif 281{ "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN, 282#if defined(sun) 283 DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" }, 284#else 285 DT_VERS_1_5, &dt_idops_func, "string(struct in6_addr *)" }, 286#endif 287{ "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN, 288 DT_VERS_1_5, &dt_idops_func, "string(int, void *)" }, 289{ "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0, 290 &dt_idops_type, "uint_t" }, 291{ "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 292 &dt_idops_func, "stack(...)" }, 293{ "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0, 294 &dt_idops_func, "string(int64_t)" }, 295{ "llquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LLQUANTIZE, DT_ATTR_STABCMN, 296 DT_VERS_1_7, &dt_idops_func, 297 "void(@, int32_t, int32_t, int32_t, int32_t, ...)" }, 298{ "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE, 299 DT_ATTR_STABCMN, DT_VERS_1_0, 300 &dt_idops_func, "void(@, int32_t, int32_t, ...)" }, 301{ "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0, 302 &dt_idops_func, "void(@)" }, 303{ "memref", DT_IDENT_FUNC, 0, DIF_SUBR_MEMREF, DT_ATTR_STABCMN, DT_VERS_1_1, 304 &dt_idops_func, "uintptr_t *(void *, size_t)" }, 305{ "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0, 306 &dt_idops_func, "void(@)" }, 307{ "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN, 308 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 309{ "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE, 310 DT_ATTR_STABCMN, DT_VERS_1_0, 311 &dt_idops_func, "size_t(mblk_t *)" }, 312{ "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE, 313 DT_ATTR_STABCMN, DT_VERS_1_0, 314 &dt_idops_func, "size_t(mblk_t *)" }, 315#if defined(sun) 316{ "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 317 DT_ATTR_EVOLCMN, DT_VERS_1_0, 318 &dt_idops_func, "int(genunix`kmutex_t *)" }, 319{ "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 320 DT_ATTR_EVOLCMN, DT_VERS_1_0, 321 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" }, 322{ "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 323 DT_ATTR_EVOLCMN, DT_VERS_1_0, 324 &dt_idops_func, "int(genunix`kmutex_t *)" }, 325{ "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 326 DT_ATTR_EVOLCMN, DT_VERS_1_0, 327 &dt_idops_func, "int(genunix`kmutex_t *)" }, 328#else 329{ "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 330 DT_ATTR_EVOLCMN, DT_VERS_1_0, 331 &dt_idops_func, intmtx_str }, 332{ "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 333 DT_ATTR_EVOLCMN, DT_VERS_1_0, 334 &dt_idops_func, threadmtx_str }, 335{ "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 336 DT_ATTR_EVOLCMN, DT_VERS_1_0, 337 &dt_idops_func, intmtx_str }, 338{ "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 339 DT_ATTR_EVOLCMN, DT_VERS_1_0, 340 &dt_idops_func, intmtx_str }, 341#endif 342{ "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 343 &dt_idops_func, "uint32_t(uint32_t)" }, 344{ "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 345 &dt_idops_func, "uint64_t(uint64_t)" }, 346{ "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 347 &dt_idops_func, "uint16_t(uint16_t)" }, 348{ "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN, 349 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 350{ "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0, 351 &dt_idops_func, "void()" }, 352{ "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0, 353 &dt_idops_type, "pid_t" }, 354{ "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0, 355 &dt_idops_type, "pid_t" }, 356{ "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0, 357 &dt_idops_func, "void(@, ...)" }, 358{ "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0, 359 &dt_idops_func, "void(@, ...)" }, 360{ "printm", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTM, DT_ATTR_STABCMN, DT_VERS_1_0, 361 &dt_idops_func, "void(size_t, uintptr_t *)" }, 362{ "printt", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTT, DT_ATTR_STABCMN, DT_VERS_1_0, 363 &dt_idops_func, "void(size_t, uintptr_t *)" }, 364{ "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC, 365 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 366{ "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD, 367 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 368{ "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME, 369 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 370{ "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV, 371 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 372{ "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF, 373 DT_ATTR_STABCMN, DT_VERS_1_0, 374 &dt_idops_func, "int(pid_t)" }, 375{ "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE, 376 DT_ATTR_STABCMN, DT_VERS_1_0, 377 &dt_idops_func, "void(@, ...)" }, 378{ "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0, 379 &dt_idops_func, "void(int)" }, 380{ "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0, 381 &dt_idops_func, "int()" }, 382{ "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 383 &dt_idops_func, "int(const char *, const char *, [int])" }, 384#if defined(sun) 385{ "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 386 DT_ATTR_EVOLCMN, DT_VERS_1_0, 387 &dt_idops_func, "int(genunix`krwlock_t *)" }, 388{ "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 389 DT_ATTR_EVOLCMN, DT_VERS_1_0, 390 &dt_idops_func, "int(genunix`krwlock_t *)" }, 391{ "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 392 DT_ATTR_EVOLCMN, DT_VERS_1_0, 393 &dt_idops_func, "int(genunix`krwlock_t *)" }, 394#else 395{ "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 396 DT_ATTR_EVOLCMN, DT_VERS_1_0, 397 &dt_idops_func, rwlock_str }, 398{ "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 399 DT_ATTR_EVOLCMN, DT_VERS_1_0, 400 &dt_idops_func, rwlock_str }, 401{ "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 402 DT_ATTR_EVOLCMN, DT_VERS_1_0, 403 &dt_idops_func, rwlock_str }, 404#endif 405{ "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 406 &dt_idops_type, "void" }, 407{ "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN, 408 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" }, 409{ "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE, 410 DT_ATTR_STABCMN, DT_VERS_1_0, 411 &dt_idops_func, "void(int)" }, 412{ "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION, 413 DT_ATTR_STABCMN, DT_VERS_1_0, 414 &dt_idops_func, "int()" }, 415{ "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0, 416 &dt_idops_func, "stack(...)" }, 417{ "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH, 418 DT_ATTR_STABCMN, DT_VERS_1_0, 419 &dt_idops_type, "uint32_t" }, 420{ "stddev", DT_IDENT_AGGFUNC, 0, DTRACEAGG_STDDEV, DT_ATTR_STABCMN, 421 DT_VERS_1_6, &dt_idops_func, "void(@)" }, 422{ "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0, 423 &dt_idops_func, "void()" }, 424{ "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 425 &dt_idops_func, "string(const char *, char)" }, 426{ "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0, 427 &dt_idops_func, "size_t(const char *)" }, 428{ "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0, 429 &dt_idops_func, "string(const char *, const char *)" }, 430{ "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 431 &dt_idops_func, "string(const char *, char)" }, 432{ "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 433 &dt_idops_func, "string(const char *, const char *)" }, 434{ "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1, 435 &dt_idops_func, "string(const char *, const char *)" }, 436{ "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 437 &dt_idops_func, "string(const char *, int, [int])" }, 438{ "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0, 439 &dt_idops_func, "void(@)" }, 440#if !defined(sun) 441{ "sx_isexclusive", DT_IDENT_FUNC, 0, DIF_SUBR_SX_ISEXCLUSIVE, 442 DT_ATTR_EVOLCMN, DT_VERS_1_0, 443 &dt_idops_func, sxlock_str }, 444{ "sx_shared_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_SHARED_HELD, 445 DT_ATTR_EVOLCMN, DT_VERS_1_0, 446 &dt_idops_func, sxlock_str }, 447{ "sx_exclusive_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_EXCLUSIVE_HELD, 448 DT_ATTR_EVOLCMN, DT_VERS_1_0, 449 &dt_idops_func, sxlock_str }, 450#endif 451{ "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 452 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 453{ "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0, 454 &dt_idops_func, "void(@, ...)" }, 455{ "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 456 &dt_idops_type, "void" }, 457{ "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0, 458 &dt_idops_type, "id_t" }, 459{ "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP, 460 DT_ATTR_STABCMN, DT_VERS_1_0, 461 &dt_idops_type, "uint64_t" }, 462{ "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0, 463 &dt_idops_func, "void(@)" }, 464{ "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM, 465 DT_ATTR_STABCMN, DT_VERS_1_0, 466 &dt_idops_func, "void(@, size_t, ...)" }, 467{ "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN, 468 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 469{ "typeref", DT_IDENT_FUNC, 0, DIF_SUBR_TYPEREF, DT_ATTR_STABCMN, DT_VERS_1_1, 470 &dt_idops_func, "uintptr_t *(void *, size_t, string, size_t)" }, 471#if defined(sun) 472{ "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN, 473 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 474#endif 475{ "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN, 476 DT_VERS_1_2, &dt_idops_type, "uint64_t" }, 477#if defined(sun) 478{ "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 479 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 480#endif 481{ "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0, 482 &dt_idops_type, "uid_t" }, 483#if defined(sun) 484{ "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN, 485 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 486#endif 487{ "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0, 488 &dt_idops_regs, NULL }, 489{ "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 490 &dt_idops_func, "stack(...)" }, 491{ "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH, 492 DT_ATTR_STABCMN, DT_VERS_1_2, 493 &dt_idops_type, "uint32_t" }, 494#if defined(sun) 495{ "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 496 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 497#endif 498{ "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP, 499 DT_ATTR_STABCMN, DT_VERS_1_0, 500 &dt_idops_type, "uint64_t" }, 501{ "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP, 502 DT_ATTR_STABCMN, DT_VERS_1_0, 503 &dt_idops_type, "int64_t" }, 504#if defined(sun) 505{ "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME, 506 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 507#endif 508 509#if !defined(sun) 510{ "cpu", DT_IDENT_SCALAR, 0, DIF_VAR_CPU, 511 DT_ATTR_STABCMN, DT_VERS_1_6_3, &dt_idops_type, "int" }, 512#endif 513 514{ NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL } 515}; 516 517/* 518 * Tables of ILP32 intrinsic integer and floating-point type templates to use 519 * to populate the dynamic "C" CTF type container. 520 */ 521static const dt_intrinsic_t _dtrace_intrinsics_32[] = { 522{ "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 523{ "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 524{ "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 525{ "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 526{ "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 527{ "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 528{ "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 529{ "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 530{ "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 531{ "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 532{ "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 533{ "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 534{ "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 535{ "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 536{ "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 537{ "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 538{ "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER }, 539{ "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 540{ "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 541{ "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 542{ "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 543{ "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 544{ "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 545{ "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 546{ "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 547{ "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 548{ "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 549{ "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 550{ NULL, { 0, 0, 0 }, 0 } 551}; 552 553/* 554 * Tables of LP64 intrinsic integer and floating-point type templates to use 555 * to populate the dynamic "C" CTF type container. 556 */ 557static const dt_intrinsic_t _dtrace_intrinsics_64[] = { 558{ "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 559{ "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 560{ "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 561{ "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 562{ "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 563{ "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 564{ "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 565{ "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 566{ "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 567{ "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 568{ "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 569{ "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 570{ "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 571{ "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 572{ "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 573{ "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 574{ "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER }, 575{ "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 576{ "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 577{ "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 578{ "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 579{ "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 580{ "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 581{ "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 582{ "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 583{ "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 584{ "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 585{ "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 586{ NULL, { 0, 0, 0 }, 0 } 587}; 588 589/* 590 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container. 591 * These aliases ensure that D definitions can use typical <sys/types.h> names. 592 */ 593static const dt_typedef_t _dtrace_typedefs_32[] = { 594{ "char", "int8_t" }, 595{ "short", "int16_t" }, 596{ "int", "int32_t" }, 597{ "long long", "int64_t" }, 598{ "int", "intptr_t" }, 599{ "int", "ssize_t" }, 600{ "unsigned char", "uint8_t" }, 601{ "unsigned short", "uint16_t" }, 602{ "unsigned", "uint32_t" }, 603{ "unsigned long long", "uint64_t" }, 604{ "unsigned char", "uchar_t" }, 605{ "unsigned short", "ushort_t" }, 606{ "unsigned", "uint_t" }, 607{ "unsigned long", "ulong_t" }, 608{ "unsigned long long", "u_longlong_t" }, 609{ "int", "ptrdiff_t" }, 610{ "unsigned", "uintptr_t" }, 611{ "unsigned", "size_t" }, 612{ "long", "id_t" }, 613{ "long", "pid_t" }, 614{ NULL, NULL } 615}; 616 617/* 618 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container. 619 * These aliases ensure that D definitions can use typical <sys/types.h> names. 620 */ 621static const dt_typedef_t _dtrace_typedefs_64[] = { 622{ "char", "int8_t" }, 623{ "short", "int16_t" }, 624{ "int", "int32_t" }, 625{ "long", "int64_t" }, 626{ "long", "intptr_t" }, 627{ "long", "ssize_t" }, 628{ "unsigned char", "uint8_t" }, 629{ "unsigned short", "uint16_t" }, 630{ "unsigned", "uint32_t" }, 631{ "unsigned long", "uint64_t" }, 632{ "unsigned char", "uchar_t" }, 633{ "unsigned short", "ushort_t" }, 634{ "unsigned", "uint_t" }, 635{ "unsigned long", "ulong_t" }, 636{ "unsigned long long", "u_longlong_t" }, 637{ "long", "ptrdiff_t" }, 638{ "unsigned long", "uintptr_t" }, 639{ "unsigned long", "size_t" }, 640{ "int", "id_t" }, 641{ "int", "pid_t" }, 642{ NULL, NULL } 643}; 644 645/* 646 * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[] 647 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 648 */ 649static const dt_intdesc_t _dtrace_ints_32[] = { 650{ "int", NULL, CTF_ERR, 0x7fffffffULL }, 651{ "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 652{ "long", NULL, CTF_ERR, 0x7fffffffULL }, 653{ "unsigned long", NULL, CTF_ERR, 0xffffffffULL }, 654{ "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 655{ "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 656}; 657 658/* 659 * Tables of LP64 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_64[] = { 663{ "int", NULL, CTF_ERR, 0x7fffffffULL }, 664{ "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 665{ "long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 666{ "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL }, 667{ "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 668{ "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 669}; 670 671/* 672 * Table of macro variable templates used to populate the macro identifier hash 673 * when a new dtrace client open occurs. Values are set by dtrace_update(). 674 */ 675static const dt_ident_t _dtrace_macros[] = { 676{ "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 677{ "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 678{ "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 679{ "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 680{ "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 681{ "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 682{ "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 683{ "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 684{ "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 685{ "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 686{ "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 687{ NULL, 0, 0, 0, { 0, 0, 0 }, 0 } 688}; 689 690/* 691 * Hard-wired definition string to be compiled and cached every time a new 692 * DTrace library handle is initialized. This string should only be used to 693 * contain definitions that should be present regardless of DTRACE_O_NOLIBS. 694 */ 695static const char _dtrace_hardwire[] = "\ 696inline long NULL = 0; \n\ 697#pragma D binding \"1.0\" NULL\n\ 698"; 699 700/* 701 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV. 702 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel. 703 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are 704 * relying on the fact that when running dtrace(1M), isaexec will invoke the 705 * binary with the same bitness as the kernel, which is what we want by default 706 * when generating our DIF. The user can override the choice using oflags. 707 */ 708static const dtrace_conf_t _dtrace_conf = { 709 DIF_VERSION, /* dtc_difversion */ 710 DIF_DIR_NREGS, /* dtc_difintregs */ 711 DIF_DTR_NREGS, /* dtc_diftupregs */ 712 CTF_MODEL_NATIVE /* dtc_ctfmodel */ 713}; 714 715const dtrace_attribute_t _dtrace_maxattr = { 716 DTRACE_STABILITY_MAX, 717 DTRACE_STABILITY_MAX, 718 DTRACE_CLASS_MAX 719}; 720 721const dtrace_attribute_t _dtrace_defattr = { 722 DTRACE_STABILITY_STABLE, 723 DTRACE_STABILITY_STABLE, 724 DTRACE_CLASS_COMMON 725}; 726 727const dtrace_attribute_t _dtrace_symattr = { 728 DTRACE_STABILITY_PRIVATE, 729 DTRACE_STABILITY_PRIVATE, 730 DTRACE_CLASS_UNKNOWN 731}; 732 733const dtrace_attribute_t _dtrace_typattr = { 734 DTRACE_STABILITY_PRIVATE, 735 DTRACE_STABILITY_PRIVATE, 736 DTRACE_CLASS_UNKNOWN 737}; 738 739const dtrace_attribute_t _dtrace_prvattr = { 740 DTRACE_STABILITY_PRIVATE, 741 DTRACE_STABILITY_PRIVATE, 742 DTRACE_CLASS_UNKNOWN 743}; 744 745const dtrace_pattr_t _dtrace_prvdesc = { 746{ DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 747{ DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 748{ DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 749{ DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 750{ DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 751}; 752 753#if defined(sun) 754const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */ 755const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */ 756#else 757const char *_dtrace_defcpp = "cpp"; /* default cpp(1) to invoke */ 758const char *_dtrace_defld = "ld"; /* default ld(1) to invoke */ 759#endif 760 761const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */ 762#if defined(sun) 763const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */ 764#else 765const char *_dtrace_provdir = "/dev/dtrace"; /* provider directory */ 766#endif 767 768int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */ 769int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */ 770uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */ 771uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */ 772uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */ 773uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */ 774size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */ 775int _dtrace_argmax = 32; /* default maximum number of probe arguments */ 776 777int _dtrace_debug = 0; /* debug messages enabled (off) */ 778const char *const _dtrace_version = DT_VERS_STRING; /* API version string */ 779int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */ 780 781typedef struct dt_fdlist { 782 int *df_fds; /* array of provider driver file descriptors */ 783 uint_t df_ents; /* number of valid elements in df_fds[] */ 784 uint_t df_size; /* size of df_fds[] */ 785} dt_fdlist_t; 786 787#if defined(sun) 788#pragma init(_dtrace_init) 789#else 790void _dtrace_init(void) __attribute__ ((constructor)); 791#endif 792void 793_dtrace_init(void) 794{ 795 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL; 796 797 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) { 798 if (rd_init(_dtrace_rdvers) == RD_OK) 799 break; 800 } 801#if defined(__i386__) 802 /* make long doubles 64 bits -sson */ 803 (void) fpsetprec(FP_PE); 804#endif 805} 806 807static dtrace_hdl_t * 808set_open_errno(dtrace_hdl_t *dtp, int *errp, int err) 809{ 810 if (dtp != NULL) 811 dtrace_close(dtp); 812 if (errp != NULL) 813 *errp = err; 814 return (NULL); 815} 816 817static void 818dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp) 819{ 820 dt_provmod_t *prov; 821 char path[PATH_MAX]; 822 int fd; 823#if defined(sun) 824 struct dirent *dp, *ep; 825 DIR *dirp; 826 827 if ((dirp = opendir(_dtrace_provdir)) == NULL) 828 return; /* failed to open directory; just skip it */ 829 830 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1); 831 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1); 832 833 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) { 834 if (dp->d_name[0] == '.') 835 continue; /* skip "." and ".." */ 836 837 if (dfp->df_ents == dfp->df_size) { 838 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 839 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 840 841 if (fds == NULL) 842 break; /* skip the rest of this directory */ 843 844 dfp->df_fds = fds; 845 dfp->df_size = size; 846 } 847 848 (void) snprintf(path, sizeof (path), "%s/%s", 849 _dtrace_provdir, dp->d_name); 850 851 if ((fd = open(path, O_RDONLY)) == -1) 852 continue; /* failed to open driver; just skip it */ 853 854 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 855 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) { 856 free(prov); 857 (void) close(fd); 858 break; 859 } 860 861 (void) strcpy(prov->dp_name, dp->d_name); 862 prov->dp_next = *provmod; 863 *provmod = prov; 864 865 dt_dprintf("opened provider %s\n", dp->d_name); 866 dfp->df_fds[dfp->df_ents++] = fd; 867 } 868 869 (void) closedir(dirp); 870#else 871 char *p; 872 char *p1; 873 char *p_providers = NULL; 874 int error; 875 size_t len = 0; 876 877 /* 878 * Loop to allocate/reallocate memory for the string of provider 879 * names and retry: 880 */ 881 while(1) { 882 /* 883 * The first time around, get the string length. The next time, 884 * hopefully we've allocated enough memory. 885 */ 886 error = sysctlbyname("debug.dtrace.providers",p_providers,&len,NULL,0); 887 if (len == 0) 888 /* No providers? That's strange. Where's dtrace? */ 889 break; 890 else if (error == 0 && p_providers == NULL) { 891 /* 892 * Allocate the initial memory which should be enough 893 * unless another provider loads before we have 894 * time to go back and get the string. 895 */ 896 if ((p_providers = malloc(len)) == NULL) 897 /* How do we report errors here? */ 898 return; 899 } else if (error == -1 && errno == ENOMEM) { 900 /* 901 * The current buffer isn't large enough, so 902 * reallocate it. We normally won't need to do this 903 * because providers aren't being loaded all the time. 904 */ 905 if ((p = realloc(p_providers,len)) == NULL) 906 /* How do we report errors here? */ 907 return; 908 p_providers = p; 909 } else 910 break; 911 } 912 913 /* Check if we got a string of provider names: */ 914 if (error == 0 && len > 0 && p_providers != NULL) { 915 p = p_providers; 916 917 /* 918 * Parse the string containing the space separated 919 * provider names. 920 */ 921 while ((p1 = strsep(&p," ")) != NULL) { 922 if (dfp->df_ents == dfp->df_size) { 923 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 924 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 925 926 if (fds == NULL) 927 break; 928 929 dfp->df_fds = fds; 930 dfp->df_size = size; 931 } 932 933 (void) snprintf(path, sizeof (path), "/dev/dtrace/%s", p1); 934 935 if ((fd = open(path, O_RDONLY)) == -1) 936 continue; /* failed to open driver; just skip it */ 937 938 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 939 (prov->dp_name = malloc(strlen(p1) + 1)) == NULL) { 940 free(prov); 941 (void) close(fd); 942 break; 943 } 944 945 (void) strcpy(prov->dp_name, p1); 946 prov->dp_next = *provmod; 947 *provmod = prov; 948 949 dt_dprintf("opened provider %s\n", p1); 950 dfp->df_fds[dfp->df_ents++] = fd; 951 } 952 } 953 if (p_providers != NULL) 954 free(p_providers); 955#endif 956} 957 958static void 959dt_provmod_destroy(dt_provmod_t **provmod) 960{ 961 dt_provmod_t *next, *current; 962 963 for (current = *provmod; current != NULL; current = next) { 964 next = current->dp_next; 965 free(current->dp_name); 966 free(current); 967 } 968 969 *provmod = NULL; 970} 971 972#if defined(sun) 973static const char * 974dt_get_sysinfo(int cmd, char *buf, size_t len) 975{ 976 ssize_t rv = sysinfo(cmd, buf, len); 977 char *p = buf; 978 979 if (rv < 0 || rv > len) 980 (void) snprintf(buf, len, "%s", "Unknown"); 981 982 while ((p = strchr(p, '.')) != NULL) 983 *p++ = '_'; 984 985 return (buf); 986} 987#endif 988 989static dtrace_hdl_t * 990dt_vopen(int version, int flags, int *errp, 991 const dtrace_vector_t *vector, void *arg) 992{ 993 dtrace_hdl_t *dtp = NULL; 994 int dtfd = -1, ftfd = -1, fterr = 0; 995 dtrace_prog_t *pgp; 996 dt_module_t *dmp; 997 dt_provmod_t *provmod = NULL; 998 int i, err; 999 struct rlimit rl; 1000 1001 const dt_intrinsic_t *dinp; 1002 const dt_typedef_t *dtyp; 1003 const dt_ident_t *idp; 1004 1005 dtrace_typeinfo_t dtt; 1006 ctf_funcinfo_t ctc; 1007 ctf_arinfo_t ctr; 1008 1009 dt_fdlist_t df = { NULL, 0, 0 }; 1010 1011 char isadef[32], utsdef[32]; 1012 char s1[64], s2[64]; 1013 1014 if (version <= 0) 1015 return (set_open_errno(dtp, errp, EINVAL)); 1016 1017 if (version > DTRACE_VERSION) 1018 return (set_open_errno(dtp, errp, EDT_VERSION)); 1019 1020 if (version < DTRACE_VERSION) { 1021 /* 1022 * Currently, increasing the library version number is used to 1023 * denote a binary incompatible change. That is, a consumer 1024 * of the library cannot run on a version of the library with 1025 * a higher DTRACE_VERSION number than the consumer compiled 1026 * against. Once the library API has been committed to, 1027 * backwards binary compatibility will be required; at that 1028 * time, this check should change to return EDT_OVERSION only 1029 * if the specified version number is less than the version 1030 * number at the time of interface commitment. 1031 */ 1032 return (set_open_errno(dtp, errp, EDT_OVERSION)); 1033 } 1034 1035 if (flags & ~DTRACE_O_MASK) 1036 return (set_open_errno(dtp, errp, EINVAL)); 1037 1038 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32)) 1039 return (set_open_errno(dtp, errp, EINVAL)); 1040 1041 if (vector == NULL && arg != NULL) 1042 return (set_open_errno(dtp, errp, EINVAL)); 1043 1044 if (elf_version(EV_CURRENT) == EV_NONE) 1045 return (set_open_errno(dtp, errp, EDT_ELFVERSION)); 1046 1047 if (vector != NULL || (flags & DTRACE_O_NODEV)) 1048 goto alloc; /* do not attempt to open dtrace device */ 1049 1050 /* 1051 * Before we get going, crank our limit on file descriptors up to the 1052 * hard limit. This is to allow for the fact that libproc keeps file 1053 * descriptors to objects open for the lifetime of the proc handle; 1054 * without raising our hard limit, we would have an acceptably small 1055 * bound on the number of processes that we could concurrently 1056 * instrument with the pid provider. 1057 */ 1058 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) { 1059 rl.rlim_cur = rl.rlim_max; 1060 (void) setrlimit(RLIMIT_NOFILE, &rl); 1061 } 1062 1063 /* 1064 * Get the device path of each of the providers. We hold them open 1065 * in the df.df_fds list until we open the DTrace driver itself, 1066 * allowing us to see all of the probes provided on this system. Once 1067 * we have the DTrace driver open, we can safely close all the providers 1068 * now that they have registered with the framework. 1069 */ 1070 dt_provmod_open(&provmod, &df); 1071 1072 dtfd = open("/dev/dtrace/dtrace", O_RDWR); 1073 err = errno; /* save errno from opening dtfd */ 1074 1075#if defined(sun) 1076 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR); 1077#else 1078 ftfd = open("/dev/dtrace/fasttrap", O_RDWR); 1079#endif 1080 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */ 1081 1082 while (df.df_ents-- != 0) 1083 (void) close(df.df_fds[df.df_ents]); 1084 1085 free(df.df_fds); 1086 1087 /* 1088 * If we failed to open the dtrace device, fail dtrace_open(). 1089 * We convert some kernel errnos to custom libdtrace errnos to 1090 * improve the resulting message from the usual strerror(). 1091 */ 1092 if (dtfd == -1) { 1093 dt_provmod_destroy(&provmod); 1094 switch (err) { 1095 case ENOENT: 1096 err = EDT_NOENT; 1097 break; 1098 case EBUSY: 1099 err = EDT_BUSY; 1100 break; 1101 case EACCES: 1102 err = EDT_ACCESS; 1103 break; 1104 } 1105 return (set_open_errno(dtp, errp, err)); 1106 } 1107 1108 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC); 1109 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC); 1110 1111alloc: 1112 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL) 1113 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1114 1115 bzero(dtp, sizeof (dtrace_hdl_t)); 1116 dtp->dt_oflags = flags; 1117#if defined(sun) 1118 dtp->dt_prcmode = DT_PROC_STOP_PREINIT; 1119#else 1120 dtp->dt_prcmode = DT_PROC_STOP_POSTINIT; 1121#endif 1122 dtp->dt_linkmode = DT_LINK_KERNEL; 1123 dtp->dt_linktype = DT_LTYP_ELF; 1124 dtp->dt_xlatemode = DT_XL_STATIC; 1125 dtp->dt_stdcmode = DT_STDC_XA; 1126 dtp->dt_version = version; 1127 dtp->dt_fd = dtfd; 1128 dtp->dt_ftfd = ftfd; 1129 dtp->dt_fterr = fterr; 1130 dtp->dt_cdefs_fd = -1; 1131 dtp->dt_ddefs_fd = -1; 1132#if defined(sun) 1133 dtp->dt_stdout_fd = -1; 1134#else 1135 dtp->dt_freopen_fp = NULL; 1136#endif 1137 dtp->dt_modbuckets = _dtrace_strbuckets; 1138 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *)); 1139 dtp->dt_provbuckets = _dtrace_strbuckets; 1140 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *)); 1141 dt_proc_hash_create(dtp); 1142 dtp->dt_vmax = DT_VERS_LATEST; 1143 dtp->dt_cpp_path = strdup(_dtrace_defcpp); 1144 dtp->dt_cpp_argv = malloc(sizeof (char *)); 1145 dtp->dt_cpp_argc = 1; 1146 dtp->dt_cpp_args = 1; 1147 dtp->dt_ld_path = strdup(_dtrace_defld); 1148 dtp->dt_provmod = provmod; 1149 dtp->dt_vector = vector; 1150 dtp->dt_varg = arg; 1151 dt_dof_init(dtp); 1152 (void) uname(&dtp->dt_uts); 1153 1154 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL || 1155 dtp->dt_procs == NULL || dtp->dt_ld_path == NULL || 1156 dtp->dt_cpp_path == NULL || dtp->dt_cpp_argv == NULL) 1157 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1158 1159 for (i = 0; i < DTRACEOPT_MAX; i++) 1160 dtp->dt_options[i] = DTRACEOPT_UNSET; 1161 1162 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path); 1163 1164#if defined(sun) 1165 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u", 1166 (uint_t)(sizeof (void *) * NBBY)); 1167 1168 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s", 1169 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)), 1170 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2))); 1171 1172 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL || 1173 dt_cpp_add_arg(dtp, "-D__unix") == NULL || 1174 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL || 1175 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL || 1176 dt_cpp_add_arg(dtp, isadef) == NULL || 1177 dt_cpp_add_arg(dtp, utsdef) == NULL) 1178 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1179#endif 1180 1181 if (flags & DTRACE_O_NODEV) 1182 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf)); 1183 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0) 1184 return (set_open_errno(dtp, errp, errno)); 1185 1186 if (flags & DTRACE_O_LP64) 1187 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64; 1188 else if (flags & DTRACE_O_ILP32) 1189 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32; 1190 1191#ifdef __sparc 1192 /* 1193 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h> 1194 * and __sparcv9 is defined if we are doing a 64-bit compile. 1195 */ 1196 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL) 1197 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1198 1199 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 && 1200 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL) 1201 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1202#endif 1203 1204#if defined(sun) 1205#ifdef __x86 1206 /* 1207 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit 1208 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC, 1209 * they are defined exclusive of one another (see PSARC 2004/619). 1210 */ 1211 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 1212 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL) 1213 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1214 } else { 1215 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL) 1216 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1217 } 1218#endif 1219#else 1220#if defined(__amd64__) || defined(__i386__) 1221 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 1222 if (dt_cpp_add_arg(dtp, "-m64") == NULL) 1223 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1224 } else { 1225 if (dt_cpp_add_arg(dtp, "-m32") == NULL) 1226 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1227 } 1228#endif 1229#endif 1230 1231 if (dtp->dt_conf.dtc_difversion < DIF_VERSION) 1232 return (set_open_errno(dtp, errp, EDT_DIFVERS)); 1233 1234 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) 1235 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32)); 1236 else 1237 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64)); 1238 1239 /* 1240 * On FreeBSD the kernel module name can't be hard-coded. The 1241 * 'kern.bootfile' sysctl value tells us exactly which file is being 1242 * used as the kernel. 1243 */ 1244#if !defined(sun) 1245 { 1246 char bootfile[MAXPATHLEN]; 1247 char *p; 1248 int i; 1249 size_t len = sizeof(bootfile); 1250 1251 /* This call shouldn't fail, but use a default just in case. */ 1252 if (sysctlbyname("kern.bootfile", bootfile, &len, NULL, 0) != 0) 1253 strlcpy(bootfile, "kernel", sizeof(bootfile)); 1254 1255 if ((p = strrchr(bootfile, '/')) != NULL) 1256 p++; 1257 else 1258 p = bootfile; 1259 1260 /* 1261 * Format the global variables based on the kernel module name. 1262 */ 1263 snprintf(curthread_str, sizeof(curthread_str), "%s`struct thread *",p); 1264 snprintf(intmtx_str, sizeof(intmtx_str), "int(%s`struct mtx *)",p); 1265 snprintf(threadmtx_str, sizeof(threadmtx_str), "struct thread *(%s`struct mtx *)",p); 1266 snprintf(rwlock_str, sizeof(rwlock_str), "int(%s`struct rwlock *)",p); 1267 snprintf(sxlock_str, sizeof(sxlock_str), "int(%s`struct sxlock *)",p); 1268 } 1269#endif 1270 1271 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX); 1272 dtp->dt_aggs = dt_idhash_create("aggregation", NULL, 1273 DTRACE_AGGVARIDNONE + 1, UINT_MAX); 1274 1275 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals, 1276 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1277 1278 dtp->dt_tls = dt_idhash_create("thread local", NULL, 1279 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1280 1281 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL || 1282 dtp->dt_globals == NULL || dtp->dt_tls == NULL) 1283 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1284 1285 /* 1286 * Populate the dt_macros identifier hash table by hand: we can't use 1287 * the dt_idhash_populate() mechanism because we're not yet compiling 1288 * and dtrace_update() needs to immediately reference these idents. 1289 */ 1290 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) { 1291 if (dt_idhash_insert(dtp->dt_macros, idp->di_name, 1292 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr, 1293 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw, 1294 idp->di_iarg, 0) == NULL) 1295 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1296 } 1297 1298 /* 1299 * Update the module list using /system/object and load the values for 1300 * the macro variable definitions according to the current process. 1301 */ 1302 dtrace_update(dtp); 1303 1304 /* 1305 * Select the intrinsics and typedefs we want based on the data model. 1306 * The intrinsics are under "C". The typedefs are added under "D". 1307 */ 1308 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) { 1309 dinp = _dtrace_intrinsics_32; 1310 dtyp = _dtrace_typedefs_32; 1311 } else { 1312 dinp = _dtrace_intrinsics_64; 1313 dtyp = _dtrace_typedefs_64; 1314 } 1315 1316 /* 1317 * Create a dynamic CTF container under the "C" scope for intrinsic 1318 * types and types defined in ANSI-C header files that are included. 1319 */ 1320 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL) 1321 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1322 1323 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1324 return (set_open_errno(dtp, errp, EDT_CTF)); 1325 1326 dt_dprintf("created CTF container for %s (%p)\n", 1327 dmp->dm_name, (void *)dmp->dm_ctfp); 1328 1329 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1330 ctf_setspecific(dmp->dm_ctfp, dmp); 1331 1332 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1333 dmp->dm_modid = -1; /* no module ID */ 1334 1335 /* 1336 * Fill the dynamic "C" CTF container with all of the intrinsic 1337 * integer and floating-point types appropriate for this data model. 1338 */ 1339 for (; dinp->din_name != NULL; dinp++) { 1340 if (dinp->din_kind == CTF_K_INTEGER) { 1341 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT, 1342 dinp->din_name, &dinp->din_data); 1343 } else { 1344 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT, 1345 dinp->din_name, &dinp->din_data); 1346 } 1347 1348 if (err == CTF_ERR) { 1349 dt_dprintf("failed to add %s to C container: %s\n", 1350 dinp->din_name, ctf_errmsg( 1351 ctf_errno(dmp->dm_ctfp))); 1352 return (set_open_errno(dtp, errp, EDT_CTF)); 1353 } 1354 } 1355 1356 if (ctf_update(dmp->dm_ctfp) != 0) { 1357 dt_dprintf("failed to update C container: %s\n", 1358 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1359 return (set_open_errno(dtp, errp, EDT_CTF)); 1360 } 1361 1362 /* 1363 * Add intrinsic pointer types that are needed to initialize printf 1364 * format dictionary types (see table in dt_printf.c). 1365 */ 1366 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1367 ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1368 1369 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1370 ctf_lookup_by_name(dmp->dm_ctfp, "char")); 1371 1372 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1373 ctf_lookup_by_name(dmp->dm_ctfp, "int")); 1374 1375 if (ctf_update(dmp->dm_ctfp) != 0) { 1376 dt_dprintf("failed to update C container: %s\n", 1377 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1378 return (set_open_errno(dtp, errp, EDT_CTF)); 1379 } 1380 1381 /* 1382 * Create a dynamic CTF container under the "D" scope for types that 1383 * are defined by the D program itself or on-the-fly by the D compiler. 1384 * The "D" CTF container is a child of the "C" CTF container. 1385 */ 1386 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL) 1387 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1388 1389 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1390 return (set_open_errno(dtp, errp, EDT_CTF)); 1391 1392 dt_dprintf("created CTF container for %s (%p)\n", 1393 dmp->dm_name, (void *)dmp->dm_ctfp); 1394 1395 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1396 ctf_setspecific(dmp->dm_ctfp, dmp); 1397 1398 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1399 dmp->dm_modid = -1; /* no module ID */ 1400 1401 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) { 1402 dt_dprintf("failed to import D parent container: %s\n", 1403 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1404 return (set_open_errno(dtp, errp, EDT_CTF)); 1405 } 1406 1407 /* 1408 * Fill the dynamic "D" CTF container with all of the built-in typedefs 1409 * that we need to use for our D variable and function definitions. 1410 * This ensures that basic inttypes.h names are always available to us. 1411 */ 1412 for (; dtyp->dty_src != NULL; dtyp++) { 1413 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1414 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp, 1415 dtyp->dty_src)) == CTF_ERR) { 1416 dt_dprintf("failed to add typedef %s %s to D " 1417 "container: %s", dtyp->dty_src, dtyp->dty_dst, 1418 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1419 return (set_open_errno(dtp, errp, EDT_CTF)); 1420 } 1421 } 1422 1423 /* 1424 * Insert a CTF ID corresponding to a pointer to a type of kind 1425 * CTF_K_FUNCTION we can use in the compiler for function pointers. 1426 * CTF treats all function pointers as "int (*)()" so we only need one. 1427 */ 1428 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int"); 1429 ctc.ctc_argc = 0; 1430 ctc.ctc_flags = 0; 1431 1432 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp, 1433 CTF_ADD_ROOT, &ctc, NULL); 1434 1435 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp, 1436 CTF_ADD_ROOT, dtp->dt_type_func); 1437 1438 /* 1439 * We also insert CTF definitions for the special D intrinsic types 1440 * string and <DYN> into the D container. The string type is added 1441 * as a typedef of char[n]. The <DYN> type is an alias for void. 1442 * We compare types to these special CTF ids throughout the compiler. 1443 */ 1444 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char"); 1445 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long"); 1446 ctr.ctr_nelems = _dtrace_strsize; 1447 1448 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1449 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr)); 1450 1451 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1452 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1453 1454 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1455 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1456 1457 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1458 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1459 1460 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1461 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1462 1463 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR || 1464 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR || 1465 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR || 1466 dtp->dt_type_usymaddr == CTF_ERR) { 1467 dt_dprintf("failed to add intrinsic to D container: %s\n", 1468 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1469 return (set_open_errno(dtp, errp, EDT_CTF)); 1470 } 1471 1472 if (ctf_update(dmp->dm_ctfp) != 0) { 1473 dt_dprintf("failed update D container: %s\n", 1474 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1475 return (set_open_errno(dtp, errp, EDT_CTF)); 1476 } 1477 1478 /* 1479 * Initialize the integer description table used to convert integer 1480 * constants to the appropriate types. Refer to the comments above 1481 * dt_node_int() for a complete description of how this table is used. 1482 */ 1483 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) { 1484 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY, 1485 dtp->dt_ints[i].did_name, &dtt) != 0) { 1486 dt_dprintf("failed to lookup integer type %s: %s\n", 1487 dtp->dt_ints[i].did_name, 1488 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1489 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1490 } 1491 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp; 1492 dtp->dt_ints[i].did_type = dtt.dtt_type; 1493 } 1494 1495 /* 1496 * Now that we've created the "C" and "D" containers, move them to the 1497 * start of the module list so that these types and symbols are found 1498 * first (for stability) when iterating through the module list. 1499 */ 1500 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs); 1501 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs); 1502 1503 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs); 1504 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs); 1505 1506 if (dt_pfdict_create(dtp) == -1) 1507 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1508 1509 /* 1510 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default 1511 * because without /dev/dtrace open, we will not be able to load the 1512 * names and attributes of any providers or probes from the kernel. 1513 */ 1514 if (flags & DTRACE_O_NODEV) 1515 dtp->dt_cflags |= DTRACE_C_ZDEFS; 1516 1517 /* 1518 * Load hard-wired inlines into the definition cache by calling the 1519 * compiler on the raw definition string defined above. 1520 */ 1521 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire, 1522 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) { 1523 dt_dprintf("failed to load hard-wired definitions: %s\n", 1524 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1525 return (set_open_errno(dtp, errp, EDT_HARDWIRE)); 1526 } 1527 1528 dt_program_destroy(dtp, pgp); 1529 1530 /* 1531 * Set up the default DTrace library path. Once set, the next call to 1532 * dt_compile() will compile all the libraries. We intentionally defer 1533 * library processing to improve overhead for clients that don't ever 1534 * compile, and to provide better error reporting (because the full 1535 * reporting of compiler errors requires dtrace_open() to succeed). 1536 */ 1537 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0) 1538 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1539 1540 return (dtp); 1541} 1542 1543dtrace_hdl_t * 1544dtrace_open(int version, int flags, int *errp) 1545{ 1546 return (dt_vopen(version, flags, errp, NULL, NULL)); 1547} 1548 1549dtrace_hdl_t * 1550dtrace_vopen(int version, int flags, int *errp, 1551 const dtrace_vector_t *vector, void *arg) 1552{ 1553 return (dt_vopen(version, flags, errp, vector, arg)); 1554} 1555 1556void 1557dtrace_close(dtrace_hdl_t *dtp) 1558{ 1559 dt_ident_t *idp, *ndp; 1560 dt_module_t *dmp; 1561 dt_provider_t *pvp; 1562 dtrace_prog_t *pgp; 1563 dt_xlator_t *dxp; 1564 dt_dirpath_t *dirp; 1565 int i; 1566 1567 if (dtp->dt_procs != NULL) 1568 dt_proc_hash_destroy(dtp); 1569 1570 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL) 1571 dt_program_destroy(dtp, pgp); 1572 1573 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL) 1574 dt_xlator_destroy(dtp, dxp); 1575 1576 dt_free(dtp, dtp->dt_xlatormap); 1577 1578 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) { 1579 ndp = idp->di_next; 1580 dt_ident_destroy(idp); 1581 } 1582 1583 if (dtp->dt_macros != NULL) 1584 dt_idhash_destroy(dtp->dt_macros); 1585 if (dtp->dt_aggs != NULL) 1586 dt_idhash_destroy(dtp->dt_aggs); 1587 if (dtp->dt_globals != NULL) 1588 dt_idhash_destroy(dtp->dt_globals); 1589 if (dtp->dt_tls != NULL) 1590 dt_idhash_destroy(dtp->dt_tls); 1591 1592 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL) 1593 dt_module_destroy(dtp, dmp); 1594 1595 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL) 1596 dt_provider_destroy(dtp, pvp); 1597 1598 if (dtp->dt_fd != -1) 1599 (void) close(dtp->dt_fd); 1600 if (dtp->dt_ftfd != -1) 1601 (void) close(dtp->dt_ftfd); 1602 if (dtp->dt_cdefs_fd != -1) 1603 (void) close(dtp->dt_cdefs_fd); 1604 if (dtp->dt_ddefs_fd != -1) 1605 (void) close(dtp->dt_ddefs_fd); 1606#if defined(sun) 1607 if (dtp->dt_stdout_fd != -1) 1608 (void) close(dtp->dt_stdout_fd); 1609#else 1610 if (dtp->dt_freopen_fp != NULL) 1611 (void) fclose(dtp->dt_freopen_fp); 1612#endif 1613 1614 dt_epid_destroy(dtp); 1615 dt_aggid_destroy(dtp); 1616 dt_format_destroy(dtp); 1617 dt_buffered_destroy(dtp); 1618 dt_aggregate_destroy(dtp); 1619 free(dtp->dt_buf.dtbd_data); 1620 dt_pfdict_destroy(dtp); 1621 dt_provmod_destroy(&dtp->dt_provmod); 1622 dt_dof_fini(dtp); 1623 1624 for (i = 1; i < dtp->dt_cpp_argc; i++) 1625 free(dtp->dt_cpp_argv[i]); 1626 1627 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) { 1628 dt_list_delete(&dtp->dt_lib_path, dirp); 1629 free(dirp->dir_path); 1630 free(dirp); 1631 } 1632 1633 free(dtp->dt_cpp_argv); 1634 free(dtp->dt_cpp_path); 1635 free(dtp->dt_ld_path); 1636 1637 free(dtp->dt_mods); 1638 free(dtp->dt_provs); 1639 free(dtp); 1640} 1641 1642int 1643dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods) 1644{ 1645 dt_provmod_t *prov; 1646 int i = 0; 1647 1648 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) { 1649 if (i < nmods) 1650 mods[i] = prov->dp_name; 1651 } 1652 1653 return (i); 1654} 1655 1656int 1657dtrace_ctlfd(dtrace_hdl_t *dtp) 1658{ 1659 return (dtp->dt_fd); 1660} 1661