dt_open.c revision 178528
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 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27#pragma ident "%Z%%M% %I% %E% SMI" 28 29#include <sys/types.h> 30#include <sys/modctl.h> 31#include <sys/systeminfo.h> 32#include <sys/resource.h> 33 34#include <libelf.h> 35#include <strings.h> 36#include <alloca.h> 37#include <limits.h> 38#include <unistd.h> 39#include <stdlib.h> 40#include <stdio.h> 41#include <fcntl.h> 42#include <errno.h> 43#include <assert.h> 44 45#define _POSIX_PTHREAD_SEMANTICS 46#include <dirent.h> 47#undef _POSIX_PTHREAD_SEMANTICS 48 49#include <dt_impl.h> 50#include <dt_program.h> 51#include <dt_module.h> 52#include <dt_printf.h> 53#include <dt_string.h> 54#include <dt_provider.h> 55 56/* 57 * Stability and versioning definitions. These #defines are used in the tables 58 * of identifiers below to fill in the attribute and version fields associated 59 * with each identifier. The DT_ATTR_* macros are a convenience to permit more 60 * concise declarations of common attributes such as Stable/Stable/Common. The 61 * DT_VERS_* macros declare the encoded integer values of all versions used so 62 * far. DT_VERS_LATEST must correspond to the latest version value among all 63 * versions exported by the D compiler. DT_VERS_STRING must be an ASCII string 64 * that contains DT_VERS_LATEST within it along with any suffixes (e.g. Beta). 65 * You must update DT_VERS_LATEST and DT_VERS_STRING when adding a new version, 66 * and then add the new version to the _dtrace_versions[] array declared below. 67 * Refer to the Solaris Dynamic Tracing Guide Stability and Versioning chapters 68 * respectively for an explanation of these DTrace features and their values. 69 * 70 * NOTE: Although the DTrace versioning scheme supports the labeling and 71 * introduction of incompatible changes (e.g. dropping an interface in a 72 * major release), the libdtrace code does not currently support this. 73 * All versions are assumed to strictly inherit from one another. If 74 * we ever need to provide divergent interfaces, this will need work. 75 */ 76#define DT_ATTR_STABCMN { DTRACE_STABILITY_STABLE, \ 77 DTRACE_STABILITY_STABLE, DTRACE_CLASS_COMMON } 78 79#define DT_ATTR_EVOLCMN { DTRACE_STABILITY_EVOLVING, \ 80 DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_COMMON \ 81} 82 83/* 84 * The version number should be increased for every customer visible release 85 * of Solaris. The major number should be incremented when a fundamental 86 * change has been made that would affect all consumers, and would reflect 87 * sweeping changes to DTrace or the D language. The minor number should be 88 * incremented when a change is introduced that could break scripts that had 89 * previously worked; for example, adding a new built-in variable could break 90 * a script which was already using that identifier. The micro number should 91 * be changed when introducing functionality changes or major bug fixes that 92 * do not affect backward compatibility -- this is merely to make capabilities 93 * easily determined from the version number. Minor bugs do not require any 94 * modification to the version number. 95 */ 96#define DT_VERS_1_0 DT_VERSION_NUMBER(1, 0, 0) 97#define DT_VERS_1_1 DT_VERSION_NUMBER(1, 1, 0) 98#define DT_VERS_1_2 DT_VERSION_NUMBER(1, 2, 0) 99#define DT_VERS_1_2_1 DT_VERSION_NUMBER(1, 2, 1) 100#define DT_VERS_1_2_2 DT_VERSION_NUMBER(1, 2, 2) 101#define DT_VERS_1_3 DT_VERSION_NUMBER(1, 3, 0) 102#define DT_VERS_1_4 DT_VERSION_NUMBER(1, 4, 0) 103#define DT_VERS_1_4_1 DT_VERSION_NUMBER(1, 4, 1) 104#define DT_VERS_1_5 DT_VERSION_NUMBER(1, 5, 0) 105#define DT_VERS_1_6 DT_VERSION_NUMBER(1, 6, 0) 106#define DT_VERS_LATEST DT_VERS_1_6 107#define DT_VERS_STRING "Sun D 1.6" 108 109const dt_version_t _dtrace_versions[] = { 110 DT_VERS_1_0, /* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */ 111 DT_VERS_1_1, /* D API 1.1.0 Solaris Express 6/05 */ 112 DT_VERS_1_2, /* D API 1.2.0 Solaris 10 Update 1 */ 113 DT_VERS_1_2_1, /* D API 1.2.1 Solaris Express 4/06 */ 114 DT_VERS_1_2_2, /* D API 1.2.2 Solaris Express 6/06 */ 115 DT_VERS_1_3, /* D API 1.3 Solaris Express 10/06 */ 116 DT_VERS_1_4, /* D API 1.4 Solaris Express 2/07 */ 117 DT_VERS_1_4_1, /* D API 1.4.1 Solaris Express 4/07 */ 118 DT_VERS_1_5, /* D API 1.5 Solaris Express 7/07 */ 119 DT_VERS_1_6, /* D API 1.6 */ 120 0 121}; 122 123/* 124 * Table of global identifiers. This is used to populate the global identifier 125 * hash when a new dtrace client open occurs. For more info see dt_ident.h. 126 * The global identifiers that represent functions use the dt_idops_func ops 127 * and specify the private data pointer as a prototype string which is parsed 128 * when the identifier is first encountered. These prototypes look like ANSI 129 * C function prototypes except that the special symbol "@" can be used as a 130 * wildcard to represent a single parameter of any type (i.e. any dt_node_t). 131 * The standard "..." notation can also be used to represent varargs. An empty 132 * parameter list is taken to mean void (that is, no arguments are permitted). 133 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional 134 * argument. 135 */ 136static const dt_ident_t _dtrace_globals[] = { 137{ "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0, 138 &dt_idops_func, "void *(size_t)" }, 139{ "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0, 140 &dt_idops_type, "int64_t" }, 141{ "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0, 142 &dt_idops_type, "int64_t" }, 143{ "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0, 144 &dt_idops_type, "int64_t" }, 145{ "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0, 146 &dt_idops_type, "int64_t" }, 147{ "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0, 148 &dt_idops_type, "int64_t" }, 149{ "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0, 150 &dt_idops_type, "int64_t" }, 151{ "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0, 152 &dt_idops_type, "int64_t" }, 153{ "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0, 154 &dt_idops_type, "int64_t" }, 155{ "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0, 156 &dt_idops_type, "int64_t" }, 157{ "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0, 158 &dt_idops_type, "int64_t" }, 159{ "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0, 160 &dt_idops_args, NULL }, 161{ "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0, 162 &dt_idops_func, "void(@)" }, 163{ "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0, 164 &dt_idops_func, "string(const char *)" }, 165{ "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0, 166 &dt_idops_func, "void(void *, void *, size_t)" }, 167{ "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT, 168 DT_ATTR_STABCMN, DT_VERS_1_0, 169 &dt_idops_func, "void()" }, 170{ "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0, 171 &dt_idops_type, "uintptr_t" }, 172{ "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0, 173 &dt_idops_func, "void(int)" }, 174{ "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN, 175 DT_VERS_1_0, &dt_idops_func, "string(const char *)" }, 176{ "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0, 177 &dt_idops_func, "void(...)" }, 178{ "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0, 179 &dt_idops_func, "void(int)" }, 180{ "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0, 181 &dt_idops_func, "void *(uintptr_t, size_t)" }, 182{ "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR, 183 DT_ATTR_STABCMN, DT_VERS_1_0, 184 &dt_idops_func, "string(uintptr_t, [size_t])" }, 185{ "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN, 186 DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" }, 187{ "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0, 188 &dt_idops_func, "void(void *, uintptr_t, size_t)" }, 189{ "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR, 190 DT_ATTR_STABCMN, DT_VERS_1_0, 191 &dt_idops_func, "void(char *, uintptr_t, size_t)" }, 192{ "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0, 193 &dt_idops_func, "void()" }, 194{ "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD, 195 { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE, 196 DTRACE_CLASS_COMMON }, DT_VERS_1_0, 197 &dt_idops_type, "genunix`kthread_t *" }, 198{ "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME, 199 DT_ATTR_EVOLCMN, DT_VERS_1_0, 200 &dt_idops_func, "string(void *, int64_t)" }, 201{ "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN, 202 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 203{ "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0, 204 &dt_idops_func, "string(const char *)" }, 205{ "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0, 206 &dt_idops_func, "void(int)" }, 207{ "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0, 208 &dt_idops_type, "uint_t" }, 209{ "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0, 210 &dt_idops_type, "int" }, 211{ "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME, 212 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 213{ "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0, 214 &dt_idops_func, "void(int)" }, 215{ "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN, 216 DT_VERS_1_1, &dt_idops_func, "void(@, ...)" }, 217{ "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN, 218 DT_VERS_1_0, &dt_idops_func, "void()" }, 219{ "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 220 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 221{ "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR, 222 DT_ATTR_EVOLCMN, DT_VERS_1_0, 223 &dt_idops_func, "genunix`major_t(genunix`dev_t)" }, 224{ "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR, 225 DT_ATTR_EVOLCMN, DT_VERS_1_0, 226 &dt_idops_func, "genunix`minor_t(genunix`dev_t)" }, 227{ "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 228 &dt_idops_func, "uint32_t(uint32_t)" }, 229{ "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 230 &dt_idops_func, "uint64_t(uint64_t)" }, 231{ "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 232 &dt_idops_func, "uint16_t(uint16_t)" }, 233{ "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0, 234 &dt_idops_type, "gid_t" }, 235{ "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0, 236 &dt_idops_type, "uint_t" }, 237{ "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 238 &dt_idops_func, "int(const char *, const char *, [int])" }, 239{ "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN, 240 DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" }, 241{ "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN, 242 DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" }, 243{ "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN, 244 DT_VERS_1_5, &dt_idops_func, "string(int, void *)" }, 245{ "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0, 246 &dt_idops_type, "uint_t" }, 247{ "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 248 &dt_idops_func, "stack(...)" }, 249{ "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0, 250 &dt_idops_func, "string(int64_t)" }, 251{ "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE, 252 DT_ATTR_STABCMN, DT_VERS_1_0, 253 &dt_idops_func, "void(@, int32_t, int32_t, ...)" }, 254{ "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0, 255 &dt_idops_func, "void(@)" }, 256{ "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0, 257 &dt_idops_func, "void(@)" }, 258{ "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN, 259 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 260{ "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE, 261 DT_ATTR_STABCMN, DT_VERS_1_0, 262 &dt_idops_func, "size_t(mblk_t *)" }, 263{ "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE, 264 DT_ATTR_STABCMN, DT_VERS_1_0, 265 &dt_idops_func, "size_t(mblk_t *)" }, 266{ "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 267 DT_ATTR_EVOLCMN, DT_VERS_1_0, 268 &dt_idops_func, "int(genunix`kmutex_t *)" }, 269{ "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 270 DT_ATTR_EVOLCMN, DT_VERS_1_0, 271 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" }, 272{ "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 273 DT_ATTR_EVOLCMN, DT_VERS_1_0, 274 &dt_idops_func, "int(genunix`kmutex_t *)" }, 275{ "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 276 DT_ATTR_EVOLCMN, DT_VERS_1_0, 277 &dt_idops_func, "int(genunix`kmutex_t *)" }, 278{ "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 279 &dt_idops_func, "uint32_t(uint32_t)" }, 280{ "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 281 &dt_idops_func, "uint64_t(uint64_t)" }, 282{ "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 283 &dt_idops_func, "uint16_t(uint16_t)" }, 284{ "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN, 285 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 286{ "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0, 287 &dt_idops_func, "void()" }, 288{ "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0, 289 &dt_idops_type, "pid_t" }, 290{ "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0, 291 &dt_idops_type, "pid_t" }, 292{ "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0, 293 &dt_idops_func, "void(@, ...)" }, 294{ "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0, 295 &dt_idops_func, "void(@, ...)" }, 296{ "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC, 297 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 298{ "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD, 299 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 300{ "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME, 301 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 302{ "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV, 303 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 304{ "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF, 305 DT_ATTR_STABCMN, DT_VERS_1_0, 306 &dt_idops_func, "int(pid_t)" }, 307{ "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE, 308 DT_ATTR_STABCMN, DT_VERS_1_0, 309 &dt_idops_func, "void(@, ...)" }, 310{ "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0, 311 &dt_idops_func, "void(int)" }, 312{ "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0, 313 &dt_idops_func, "int()" }, 314{ "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 315 &dt_idops_func, "int(const char *, const char *, [int])" }, 316{ "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 317 DT_ATTR_EVOLCMN, DT_VERS_1_0, 318 &dt_idops_func, "int(genunix`krwlock_t *)" }, 319{ "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 320 DT_ATTR_EVOLCMN, DT_VERS_1_0, 321 &dt_idops_func, "int(genunix`krwlock_t *)" }, 322{ "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 323 DT_ATTR_EVOLCMN, DT_VERS_1_0, 324 &dt_idops_func, "int(genunix`krwlock_t *)" }, 325{ "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 326 &dt_idops_type, "void" }, 327{ "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN, 328 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" }, 329{ "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE, 330 DT_ATTR_STABCMN, DT_VERS_1_0, 331 &dt_idops_func, "void(int)" }, 332{ "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION, 333 DT_ATTR_STABCMN, DT_VERS_1_0, 334 &dt_idops_func, "int()" }, 335{ "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0, 336 &dt_idops_func, "stack(...)" }, 337{ "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH, 338 DT_ATTR_STABCMN, DT_VERS_1_0, 339 &dt_idops_type, "uint32_t" }, 340{ "stddev", DT_IDENT_AGGFUNC, 0, DTRACEAGG_STDDEV, DT_ATTR_STABCMN, 341 DT_VERS_1_6, &dt_idops_func, "void(@)" }, 342{ "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0, 343 &dt_idops_func, "void()" }, 344{ "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 345 &dt_idops_func, "string(const char *, char)" }, 346{ "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0, 347 &dt_idops_func, "size_t(const char *)" }, 348{ "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0, 349 &dt_idops_func, "string(const char *, const char *)" }, 350{ "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 351 &dt_idops_func, "string(const char *, char)" }, 352{ "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 353 &dt_idops_func, "string(const char *, const char *)" }, 354{ "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1, 355 &dt_idops_func, "string(const char *, const char *)" }, 356{ "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 357 &dt_idops_func, "string(const char *, int, [int])" }, 358{ "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0, 359 &dt_idops_func, "void(@)" }, 360{ "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 361 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 362{ "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0, 363 &dt_idops_func, "void(@, ...)" }, 364{ "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 365 &dt_idops_type, "void" }, 366{ "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0, 367 &dt_idops_type, "id_t" }, 368{ "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP, 369 DT_ATTR_STABCMN, DT_VERS_1_0, 370 &dt_idops_type, "uint64_t" }, 371{ "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0, 372 &dt_idops_func, "void(@)" }, 373{ "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM, 374 DT_ATTR_STABCMN, DT_VERS_1_0, 375 &dt_idops_func, "void(@, size_t)" }, 376{ "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN, 377 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 378{ "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN, 379 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 380{ "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN, 381 DT_VERS_1_2, &dt_idops_type, "uint64_t" }, 382{ "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 383 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 384{ "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0, 385 &dt_idops_type, "uid_t" }, 386{ "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN, 387 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 388{ "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0, 389 &dt_idops_regs, NULL }, 390{ "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 391 &dt_idops_func, "stack(...)" }, 392{ "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH, 393 DT_ATTR_STABCMN, DT_VERS_1_2, 394 &dt_idops_type, "uint32_t" }, 395{ "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 396 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 397{ "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP, 398 DT_ATTR_STABCMN, DT_VERS_1_0, 399 &dt_idops_type, "uint64_t" }, 400{ "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP, 401 DT_ATTR_STABCMN, DT_VERS_1_0, 402 &dt_idops_type, "int64_t" }, 403{ "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME, 404 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 405{ NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL } 406}; 407 408/* 409 * Tables of ILP32 intrinsic integer and floating-point type templates to use 410 * to populate the dynamic "C" CTF type container. 411 */ 412static const dt_intrinsic_t _dtrace_intrinsics_32[] = { 413{ "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 414{ "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 415{ "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 416{ "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 417{ "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 418{ "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 419{ "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 420{ "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 421{ "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 422{ "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 423{ "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 424{ "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 425{ "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 426{ "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 427{ "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 428{ "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 429{ "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER }, 430{ "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 431{ "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 432{ "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 433{ "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 434{ "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 435{ "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 436{ "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 437{ "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 438{ "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 439{ "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 440{ "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 441{ NULL, { 0, 0, 0 }, 0 } 442}; 443 444/* 445 * Tables of LP64 intrinsic integer and floating-point type templates to use 446 * to populate the dynamic "C" CTF type container. 447 */ 448static const dt_intrinsic_t _dtrace_intrinsics_64[] = { 449{ "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 450{ "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 451{ "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 452{ "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 453{ "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 454{ "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 455{ "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 456{ "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 457{ "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 458{ "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 459{ "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 460{ "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 461{ "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 462{ "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 463{ "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 464{ "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 465{ "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER }, 466{ "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 467{ "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 468{ "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 469{ "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 470{ "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 471{ "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 472{ "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 473{ "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 474{ "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 475{ "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 476{ "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 477{ NULL, { 0, 0, 0 }, 0 } 478}; 479 480/* 481 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container. 482 * These aliases ensure that D definitions can use typical <sys/types.h> names. 483 */ 484static const dt_typedef_t _dtrace_typedefs_32[] = { 485{ "char", "int8_t" }, 486{ "short", "int16_t" }, 487{ "int", "int32_t" }, 488{ "long long", "int64_t" }, 489{ "int", "intptr_t" }, 490{ "int", "ssize_t" }, 491{ "unsigned char", "uint8_t" }, 492{ "unsigned short", "uint16_t" }, 493{ "unsigned", "uint32_t" }, 494{ "unsigned long long", "uint64_t" }, 495{ "unsigned char", "uchar_t" }, 496{ "unsigned short", "ushort_t" }, 497{ "unsigned", "uint_t" }, 498{ "unsigned long", "ulong_t" }, 499{ "unsigned long long", "u_longlong_t" }, 500{ "int", "ptrdiff_t" }, 501{ "unsigned", "uintptr_t" }, 502{ "unsigned", "size_t" }, 503{ "long", "id_t" }, 504{ "long", "pid_t" }, 505{ NULL, NULL } 506}; 507 508/* 509 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container. 510 * These aliases ensure that D definitions can use typical <sys/types.h> names. 511 */ 512static const dt_typedef_t _dtrace_typedefs_64[] = { 513{ "char", "int8_t" }, 514{ "short", "int16_t" }, 515{ "int", "int32_t" }, 516{ "long", "int64_t" }, 517{ "long", "intptr_t" }, 518{ "long", "ssize_t" }, 519{ "unsigned char", "uint8_t" }, 520{ "unsigned short", "uint16_t" }, 521{ "unsigned", "uint32_t" }, 522{ "unsigned long", "uint64_t" }, 523{ "unsigned char", "uchar_t" }, 524{ "unsigned short", "ushort_t" }, 525{ "unsigned", "uint_t" }, 526{ "unsigned long", "ulong_t" }, 527{ "unsigned long long", "u_longlong_t" }, 528{ "long", "ptrdiff_t" }, 529{ "unsigned long", "uintptr_t" }, 530{ "unsigned long", "size_t" }, 531{ "int", "id_t" }, 532{ "int", "pid_t" }, 533{ NULL, NULL } 534}; 535 536/* 537 * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[] 538 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 539 */ 540static const dt_intdesc_t _dtrace_ints_32[] = { 541{ "int", NULL, CTF_ERR, 0x7fffffffULL }, 542{ "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 543{ "long", NULL, CTF_ERR, 0x7fffffffULL }, 544{ "unsigned long", NULL, CTF_ERR, 0xffffffffULL }, 545{ "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 546{ "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 547}; 548 549/* 550 * Tables of LP64 integer type templates used to populate the dtp->dt_ints[] 551 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 552 */ 553static const dt_intdesc_t _dtrace_ints_64[] = { 554{ "int", NULL, CTF_ERR, 0x7fffffffULL }, 555{ "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 556{ "long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 557{ "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL }, 558{ "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 559{ "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 560}; 561 562/* 563 * Table of macro variable templates used to populate the macro identifier hash 564 * when a new dtrace client open occurs. Values are set by dtrace_update(). 565 */ 566static const dt_ident_t _dtrace_macros[] = { 567{ "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 568{ "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 569{ "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 570{ "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 571{ "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 572{ "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 573{ "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 574{ "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 575{ "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 576{ "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 577{ "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 578{ NULL, 0, 0, 0, { 0, 0, 0 }, 0 } 579}; 580 581/* 582 * Hard-wired definition string to be compiled and cached every time a new 583 * DTrace library handle is initialized. This string should only be used to 584 * contain definitions that should be present regardless of DTRACE_O_NOLIBS. 585 */ 586static const char _dtrace_hardwire[] = "\ 587inline long NULL = 0; \n\ 588#pragma D binding \"1.0\" NULL\n\ 589"; 590 591/* 592 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV. 593 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel. 594 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are 595 * relying on the fact that when running dtrace(1M), isaexec will invoke the 596 * binary with the same bitness as the kernel, which is what we want by default 597 * when generating our DIF. The user can override the choice using oflags. 598 */ 599static const dtrace_conf_t _dtrace_conf = { 600 DIF_VERSION, /* dtc_difversion */ 601 DIF_DIR_NREGS, /* dtc_difintregs */ 602 DIF_DTR_NREGS, /* dtc_diftupregs */ 603 CTF_MODEL_NATIVE /* dtc_ctfmodel */ 604}; 605 606const dtrace_attribute_t _dtrace_maxattr = { 607 DTRACE_STABILITY_MAX, 608 DTRACE_STABILITY_MAX, 609 DTRACE_CLASS_MAX 610}; 611 612const dtrace_attribute_t _dtrace_defattr = { 613 DTRACE_STABILITY_STABLE, 614 DTRACE_STABILITY_STABLE, 615 DTRACE_CLASS_COMMON 616}; 617 618const dtrace_attribute_t _dtrace_symattr = { 619 DTRACE_STABILITY_PRIVATE, 620 DTRACE_STABILITY_PRIVATE, 621 DTRACE_CLASS_UNKNOWN 622}; 623 624const dtrace_attribute_t _dtrace_typattr = { 625 DTRACE_STABILITY_PRIVATE, 626 DTRACE_STABILITY_PRIVATE, 627 DTRACE_CLASS_UNKNOWN 628}; 629 630const dtrace_attribute_t _dtrace_prvattr = { 631 DTRACE_STABILITY_PRIVATE, 632 DTRACE_STABILITY_PRIVATE, 633 DTRACE_CLASS_UNKNOWN 634}; 635 636const dtrace_pattr_t _dtrace_prvdesc = { 637{ DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 638{ DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 639{ DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 640{ DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 641{ DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 642}; 643 644const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */ 645const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */ 646 647const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */ 648const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */ 649 650int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */ 651int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */ 652uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */ 653uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */ 654uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */ 655uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */ 656size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */ 657int _dtrace_argmax = 32; /* default maximum number of probe arguments */ 658 659int _dtrace_debug = 0; /* debug messages enabled (off) */ 660const char *const _dtrace_version = DT_VERS_STRING; /* API version string */ 661int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */ 662 663typedef struct dt_fdlist { 664 int *df_fds; /* array of provider driver file descriptors */ 665 uint_t df_ents; /* number of valid elements in df_fds[] */ 666 uint_t df_size; /* size of df_fds[] */ 667} dt_fdlist_t; 668 669#pragma init(_dtrace_init) 670void 671_dtrace_init(void) 672{ 673 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL; 674 675 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) { 676 if (rd_init(_dtrace_rdvers) == RD_OK) 677 break; 678 } 679} 680 681static dtrace_hdl_t * 682set_open_errno(dtrace_hdl_t *dtp, int *errp, int err) 683{ 684 if (dtp != NULL) 685 dtrace_close(dtp); 686 if (errp != NULL) 687 *errp = err; 688 return (NULL); 689} 690 691static void 692dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp) 693{ 694 dt_provmod_t *prov; 695 char path[PATH_MAX]; 696 struct dirent *dp, *ep; 697 DIR *dirp; 698 int fd; 699 700 if ((dirp = opendir(_dtrace_provdir)) == NULL) 701 return; /* failed to open directory; just skip it */ 702 703 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1); 704 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1); 705 706 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) { 707 if (dp->d_name[0] == '.') 708 continue; /* skip "." and ".." */ 709 710 if (dfp->df_ents == dfp->df_size) { 711 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 712 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 713 714 if (fds == NULL) 715 break; /* skip the rest of this directory */ 716 717 dfp->df_fds = fds; 718 dfp->df_size = size; 719 } 720 721 (void) snprintf(path, sizeof (path), "%s/%s", 722 _dtrace_provdir, dp->d_name); 723 724 if ((fd = open(path, O_RDONLY)) == -1) 725 continue; /* failed to open driver; just skip it */ 726 727 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 728 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) { 729 free(prov); 730 (void) close(fd); 731 break; 732 } 733 734 (void) strcpy(prov->dp_name, dp->d_name); 735 prov->dp_next = *provmod; 736 *provmod = prov; 737 738 dt_dprintf("opened provider %s\n", dp->d_name); 739 dfp->df_fds[dfp->df_ents++] = fd; 740 } 741 742 (void) closedir(dirp); 743} 744 745static void 746dt_provmod_destroy(dt_provmod_t **provmod) 747{ 748 dt_provmod_t *next, *current; 749 750 for (current = *provmod; current != NULL; current = next) { 751 next = current->dp_next; 752 free(current->dp_name); 753 free(current); 754 } 755 756 *provmod = NULL; 757} 758 759static const char * 760dt_get_sysinfo(int cmd, char *buf, size_t len) 761{ 762 ssize_t rv = sysinfo(cmd, buf, len); 763 char *p = buf; 764 765 if (rv < 0 || rv > len) 766 (void) snprintf(buf, len, "%s", "Unknown"); 767 768 while ((p = strchr(p, '.')) != NULL) 769 *p++ = '_'; 770 771 return (buf); 772} 773 774static dtrace_hdl_t * 775dt_vopen(int version, int flags, int *errp, 776 const dtrace_vector_t *vector, void *arg) 777{ 778 dtrace_hdl_t *dtp = NULL; 779 int dtfd = -1, ftfd = -1, fterr = 0; 780 dtrace_prog_t *pgp; 781 dt_module_t *dmp; 782 dt_provmod_t *provmod = NULL; 783 int i, err; 784 struct rlimit rl; 785 786 const dt_intrinsic_t *dinp; 787 const dt_typedef_t *dtyp; 788 const dt_ident_t *idp; 789 790 dtrace_typeinfo_t dtt; 791 ctf_funcinfo_t ctc; 792 ctf_arinfo_t ctr; 793 794 dt_fdlist_t df = { NULL, 0, 0 }; 795 796 char isadef[32], utsdef[32]; 797 char s1[64], s2[64]; 798 799 if (version <= 0) 800 return (set_open_errno(dtp, errp, EINVAL)); 801 802 if (version > DTRACE_VERSION) 803 return (set_open_errno(dtp, errp, EDT_VERSION)); 804 805 if (version < DTRACE_VERSION) { 806 /* 807 * Currently, increasing the library version number is used to 808 * denote a binary incompatible change. That is, a consumer 809 * of the library cannot run on a version of the library with 810 * a higher DTRACE_VERSION number than the consumer compiled 811 * against. Once the library API has been committed to, 812 * backwards binary compatibility will be required; at that 813 * time, this check should change to return EDT_OVERSION only 814 * if the specified version number is less than the version 815 * number at the time of interface commitment. 816 */ 817 return (set_open_errno(dtp, errp, EDT_OVERSION)); 818 } 819 820 if (flags & ~DTRACE_O_MASK) 821 return (set_open_errno(dtp, errp, EINVAL)); 822 823 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32)) 824 return (set_open_errno(dtp, errp, EINVAL)); 825 826 if (vector == NULL && arg != NULL) 827 return (set_open_errno(dtp, errp, EINVAL)); 828 829 if (elf_version(EV_CURRENT) == EV_NONE) 830 return (set_open_errno(dtp, errp, EDT_ELFVERSION)); 831 832 if (vector != NULL || (flags & DTRACE_O_NODEV)) 833 goto alloc; /* do not attempt to open dtrace device */ 834 835 /* 836 * Before we get going, crank our limit on file descriptors up to the 837 * hard limit. This is to allow for the fact that libproc keeps file 838 * descriptors to objects open for the lifetime of the proc handle; 839 * without raising our hard limit, we would have an acceptably small 840 * bound on the number of processes that we could concurrently 841 * instrument with the pid provider. 842 */ 843 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) { 844 rl.rlim_cur = rl.rlim_max; 845 (void) setrlimit(RLIMIT_NOFILE, &rl); 846 } 847 848 /* 849 * Get the device path of each of the providers. We hold them open 850 * in the df.df_fds list until we open the DTrace driver itself, 851 * allowing us to see all of the probes provided on this system. Once 852 * we have the DTrace driver open, we can safely close all the providers 853 * now that they have registered with the framework. 854 */ 855 dt_provmod_open(&provmod, &df); 856 857 dtfd = open("/dev/dtrace/dtrace", O_RDWR); 858 err = errno; /* save errno from opening dtfd */ 859 860 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR); 861 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */ 862 863 while (df.df_ents-- != 0) 864 (void) close(df.df_fds[df.df_ents]); 865 866 free(df.df_fds); 867 868 /* 869 * If we failed to open the dtrace device, fail dtrace_open(). 870 * We convert some kernel errnos to custom libdtrace errnos to 871 * improve the resulting message from the usual strerror(). 872 */ 873 if (dtfd == -1) { 874 dt_provmod_destroy(&provmod); 875 switch (err) { 876 case ENOENT: 877 err = EDT_NOENT; 878 break; 879 case EBUSY: 880 err = EDT_BUSY; 881 break; 882 case EACCES: 883 err = EDT_ACCESS; 884 break; 885 } 886 return (set_open_errno(dtp, errp, err)); 887 } 888 889 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC); 890 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC); 891 892alloc: 893 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL) 894 return (set_open_errno(dtp, errp, EDT_NOMEM)); 895 896 bzero(dtp, sizeof (dtrace_hdl_t)); 897 dtp->dt_oflags = flags; 898 dtp->dt_prcmode = DT_PROC_STOP_PREINIT; 899 dtp->dt_linkmode = DT_LINK_KERNEL; 900 dtp->dt_linktype = DT_LTYP_ELF; 901 dtp->dt_xlatemode = DT_XL_STATIC; 902 dtp->dt_stdcmode = DT_STDC_XA; 903 dtp->dt_version = version; 904 dtp->dt_fd = dtfd; 905 dtp->dt_ftfd = ftfd; 906 dtp->dt_fterr = fterr; 907 dtp->dt_cdefs_fd = -1; 908 dtp->dt_ddefs_fd = -1; 909 dtp->dt_stdout_fd = -1; 910 dtp->dt_modbuckets = _dtrace_strbuckets; 911 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *)); 912 dtp->dt_provbuckets = _dtrace_strbuckets; 913 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *)); 914 dt_proc_hash_create(dtp); 915 dtp->dt_vmax = DT_VERS_LATEST; 916 dtp->dt_cpp_path = strdup(_dtrace_defcpp); 917 dtp->dt_cpp_argv = malloc(sizeof (char *)); 918 dtp->dt_cpp_argc = 1; 919 dtp->dt_cpp_args = 1; 920 dtp->dt_ld_path = strdup(_dtrace_defld); 921 dtp->dt_provmod = provmod; 922 dtp->dt_vector = vector; 923 dtp->dt_varg = arg; 924 dt_dof_init(dtp); 925 (void) uname(&dtp->dt_uts); 926 927 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL || 928 dtp->dt_procs == NULL || dtp->dt_ld_path == NULL || 929 dtp->dt_cpp_path == NULL || dtp->dt_cpp_argv == NULL) 930 return (set_open_errno(dtp, errp, EDT_NOMEM)); 931 932 for (i = 0; i < DTRACEOPT_MAX; i++) 933 dtp->dt_options[i] = DTRACEOPT_UNSET; 934 935 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path); 936 937 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u", 938 (uint_t)(sizeof (void *) * NBBY)); 939 940 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s", 941 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)), 942 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2))); 943 944 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL || 945 dt_cpp_add_arg(dtp, "-D__unix") == NULL || 946 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL || 947 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL || 948 dt_cpp_add_arg(dtp, isadef) == NULL || 949 dt_cpp_add_arg(dtp, utsdef) == NULL) 950 return (set_open_errno(dtp, errp, EDT_NOMEM)); 951 952 if (flags & DTRACE_O_NODEV) 953 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf)); 954 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0) 955 return (set_open_errno(dtp, errp, errno)); 956 957 if (flags & DTRACE_O_LP64) 958 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64; 959 else if (flags & DTRACE_O_ILP32) 960 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32; 961 962#ifdef __sparc 963 /* 964 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h> 965 * and __sparcv9 is defined if we are doing a 64-bit compile. 966 */ 967 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL) 968 return (set_open_errno(dtp, errp, EDT_NOMEM)); 969 970 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 && 971 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL) 972 return (set_open_errno(dtp, errp, EDT_NOMEM)); 973#endif 974 975#ifdef __x86 976 /* 977 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit 978 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC, 979 * they are defined exclusive of one another (see PSARC 2004/619). 980 */ 981 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 982 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL) 983 return (set_open_errno(dtp, errp, EDT_NOMEM)); 984 } else { 985 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL) 986 return (set_open_errno(dtp, errp, EDT_NOMEM)); 987 } 988#endif 989 990 if (dtp->dt_conf.dtc_difversion < DIF_VERSION) 991 return (set_open_errno(dtp, errp, EDT_DIFVERS)); 992 993 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) 994 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32)); 995 else 996 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64)); 997 998 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX); 999 dtp->dt_aggs = dt_idhash_create("aggregation", NULL, 1000 DTRACE_AGGVARIDNONE + 1, UINT_MAX); 1001 1002 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals, 1003 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1004 1005 dtp->dt_tls = dt_idhash_create("thread local", NULL, 1006 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1007 1008 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL || 1009 dtp->dt_globals == NULL || dtp->dt_tls == NULL) 1010 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1011 1012 /* 1013 * Populate the dt_macros identifier hash table by hand: we can't use 1014 * the dt_idhash_populate() mechanism because we're not yet compiling 1015 * and dtrace_update() needs to immediately reference these idents. 1016 */ 1017 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) { 1018 if (dt_idhash_insert(dtp->dt_macros, idp->di_name, 1019 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr, 1020 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw, 1021 idp->di_iarg, 0) == NULL) 1022 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1023 } 1024 1025 /* 1026 * Update the module list using /system/object and load the values for 1027 * the macro variable definitions according to the current process. 1028 */ 1029 dtrace_update(dtp); 1030 1031 /* 1032 * Select the intrinsics and typedefs we want based on the data model. 1033 * The intrinsics are under "C". The typedefs are added under "D". 1034 */ 1035 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) { 1036 dinp = _dtrace_intrinsics_32; 1037 dtyp = _dtrace_typedefs_32; 1038 } else { 1039 dinp = _dtrace_intrinsics_64; 1040 dtyp = _dtrace_typedefs_64; 1041 } 1042 1043 /* 1044 * Create a dynamic CTF container under the "C" scope for intrinsic 1045 * types and types defined in ANSI-C header files that are included. 1046 */ 1047 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL) 1048 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1049 1050 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1051 return (set_open_errno(dtp, errp, EDT_CTF)); 1052 1053 dt_dprintf("created CTF container for %s (%p)\n", 1054 dmp->dm_name, (void *)dmp->dm_ctfp); 1055 1056 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1057 ctf_setspecific(dmp->dm_ctfp, dmp); 1058 1059 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1060 dmp->dm_modid = -1; /* no module ID */ 1061 1062 /* 1063 * Fill the dynamic "C" CTF container with all of the intrinsic 1064 * integer and floating-point types appropriate for this data model. 1065 */ 1066 for (; dinp->din_name != NULL; dinp++) { 1067 if (dinp->din_kind == CTF_K_INTEGER) { 1068 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT, 1069 dinp->din_name, &dinp->din_data); 1070 } else { 1071 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT, 1072 dinp->din_name, &dinp->din_data); 1073 } 1074 1075 if (err == CTF_ERR) { 1076 dt_dprintf("failed to add %s to C container: %s\n", 1077 dinp->din_name, ctf_errmsg( 1078 ctf_errno(dmp->dm_ctfp))); 1079 return (set_open_errno(dtp, errp, EDT_CTF)); 1080 } 1081 } 1082 1083 if (ctf_update(dmp->dm_ctfp) != 0) { 1084 dt_dprintf("failed to update C container: %s\n", 1085 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1086 return (set_open_errno(dtp, errp, EDT_CTF)); 1087 } 1088 1089 /* 1090 * Add intrinsic pointer types that are needed to initialize printf 1091 * format dictionary types (see table in dt_printf.c). 1092 */ 1093 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1094 ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1095 1096 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1097 ctf_lookup_by_name(dmp->dm_ctfp, "char")); 1098 1099 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1100 ctf_lookup_by_name(dmp->dm_ctfp, "int")); 1101 1102 if (ctf_update(dmp->dm_ctfp) != 0) { 1103 dt_dprintf("failed to update C container: %s\n", 1104 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1105 return (set_open_errno(dtp, errp, EDT_CTF)); 1106 } 1107 1108 /* 1109 * Create a dynamic CTF container under the "D" scope for types that 1110 * are defined by the D program itself or on-the-fly by the D compiler. 1111 * The "D" CTF container is a child of the "C" CTF container. 1112 */ 1113 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL) 1114 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1115 1116 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1117 return (set_open_errno(dtp, errp, EDT_CTF)); 1118 1119 dt_dprintf("created CTF container for %s (%p)\n", 1120 dmp->dm_name, (void *)dmp->dm_ctfp); 1121 1122 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1123 ctf_setspecific(dmp->dm_ctfp, dmp); 1124 1125 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1126 dmp->dm_modid = -1; /* no module ID */ 1127 1128 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) { 1129 dt_dprintf("failed to import D parent container: %s\n", 1130 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1131 return (set_open_errno(dtp, errp, EDT_CTF)); 1132 } 1133 1134 /* 1135 * Fill the dynamic "D" CTF container with all of the built-in typedefs 1136 * that we need to use for our D variable and function definitions. 1137 * This ensures that basic inttypes.h names are always available to us. 1138 */ 1139 for (; dtyp->dty_src != NULL; dtyp++) { 1140 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1141 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp, 1142 dtyp->dty_src)) == CTF_ERR) { 1143 dt_dprintf("failed to add typedef %s %s to D " 1144 "container: %s", dtyp->dty_src, dtyp->dty_dst, 1145 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1146 return (set_open_errno(dtp, errp, EDT_CTF)); 1147 } 1148 } 1149 1150 /* 1151 * Insert a CTF ID corresponding to a pointer to a type of kind 1152 * CTF_K_FUNCTION we can use in the compiler for function pointers. 1153 * CTF treats all function pointers as "int (*)()" so we only need one. 1154 */ 1155 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int"); 1156 ctc.ctc_argc = 0; 1157 ctc.ctc_flags = 0; 1158 1159 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp, 1160 CTF_ADD_ROOT, &ctc, NULL); 1161 1162 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp, 1163 CTF_ADD_ROOT, dtp->dt_type_func); 1164 1165 /* 1166 * We also insert CTF definitions for the special D intrinsic types 1167 * string and <DYN> into the D container. The string type is added 1168 * as a typedef of char[n]. The <DYN> type is an alias for void. 1169 * We compare types to these special CTF ids throughout the compiler. 1170 */ 1171 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char"); 1172 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long"); 1173 ctr.ctr_nelems = _dtrace_strsize; 1174 1175 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1176 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr)); 1177 1178 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1179 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1180 1181 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1182 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1183 1184 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1185 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1186 1187 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1188 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1189 1190 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR || 1191 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR || 1192 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR || 1193 dtp->dt_type_usymaddr == CTF_ERR) { 1194 dt_dprintf("failed to add intrinsic to D container: %s\n", 1195 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1196 return (set_open_errno(dtp, errp, EDT_CTF)); 1197 } 1198 1199 if (ctf_update(dmp->dm_ctfp) != 0) { 1200 dt_dprintf("failed update D container: %s\n", 1201 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1202 return (set_open_errno(dtp, errp, EDT_CTF)); 1203 } 1204 1205 /* 1206 * Initialize the integer description table used to convert integer 1207 * constants to the appropriate types. Refer to the comments above 1208 * dt_node_int() for a complete description of how this table is used. 1209 */ 1210 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) { 1211 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY, 1212 dtp->dt_ints[i].did_name, &dtt) != 0) { 1213 dt_dprintf("failed to lookup integer type %s: %s\n", 1214 dtp->dt_ints[i].did_name, 1215 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1216 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1217 } 1218 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp; 1219 dtp->dt_ints[i].did_type = dtt.dtt_type; 1220 } 1221 1222 /* 1223 * Now that we've created the "C" and "D" containers, move them to the 1224 * start of the module list so that these types and symbols are found 1225 * first (for stability) when iterating through the module list. 1226 */ 1227 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs); 1228 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs); 1229 1230 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs); 1231 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs); 1232 1233 if (dt_pfdict_create(dtp) == -1) 1234 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1235 1236 /* 1237 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default 1238 * because without /dev/dtrace open, we will not be able to load the 1239 * names and attributes of any providers or probes from the kernel. 1240 */ 1241 if (flags & DTRACE_O_NODEV) 1242 dtp->dt_cflags |= DTRACE_C_ZDEFS; 1243 1244 /* 1245 * Load hard-wired inlines into the definition cache by calling the 1246 * compiler on the raw definition string defined above. 1247 */ 1248 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire, 1249 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) { 1250 dt_dprintf("failed to load hard-wired definitions: %s\n", 1251 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1252 return (set_open_errno(dtp, errp, EDT_HARDWIRE)); 1253 } 1254 1255 dt_program_destroy(dtp, pgp); 1256 1257 /* 1258 * Set up the default DTrace library path. Once set, the next call to 1259 * dt_compile() will compile all the libraries. We intentionally defer 1260 * library processing to improve overhead for clients that don't ever 1261 * compile, and to provide better error reporting (because the full 1262 * reporting of compiler errors requires dtrace_open() to succeed). 1263 */ 1264 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0) 1265 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1266 1267 return (dtp); 1268} 1269 1270dtrace_hdl_t * 1271dtrace_open(int version, int flags, int *errp) 1272{ 1273 return (dt_vopen(version, flags, errp, NULL, NULL)); 1274} 1275 1276dtrace_hdl_t * 1277dtrace_vopen(int version, int flags, int *errp, 1278 const dtrace_vector_t *vector, void *arg) 1279{ 1280 return (dt_vopen(version, flags, errp, vector, arg)); 1281} 1282 1283void 1284dtrace_close(dtrace_hdl_t *dtp) 1285{ 1286 dt_ident_t *idp, *ndp; 1287 dt_module_t *dmp; 1288 dt_provider_t *pvp; 1289 dtrace_prog_t *pgp; 1290 dt_xlator_t *dxp; 1291 dt_dirpath_t *dirp; 1292 int i; 1293 1294 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL) 1295 dt_program_destroy(dtp, pgp); 1296 1297 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL) 1298 dt_xlator_destroy(dtp, dxp); 1299 1300 dt_free(dtp, dtp->dt_xlatormap); 1301 1302 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) { 1303 ndp = idp->di_next; 1304 dt_ident_destroy(idp); 1305 } 1306 1307 if (dtp->dt_macros != NULL) 1308 dt_idhash_destroy(dtp->dt_macros); 1309 if (dtp->dt_aggs != NULL) 1310 dt_idhash_destroy(dtp->dt_aggs); 1311 if (dtp->dt_globals != NULL) 1312 dt_idhash_destroy(dtp->dt_globals); 1313 if (dtp->dt_tls != NULL) 1314 dt_idhash_destroy(dtp->dt_tls); 1315 1316 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL) 1317 dt_module_destroy(dtp, dmp); 1318 1319 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL) 1320 dt_provider_destroy(dtp, pvp); 1321 1322 if (dtp->dt_procs != NULL) 1323 dt_proc_hash_destroy(dtp); 1324 1325 if (dtp->dt_fd != -1) 1326 (void) close(dtp->dt_fd); 1327 if (dtp->dt_ftfd != -1) 1328 (void) close(dtp->dt_ftfd); 1329 if (dtp->dt_cdefs_fd != -1) 1330 (void) close(dtp->dt_cdefs_fd); 1331 if (dtp->dt_ddefs_fd != -1) 1332 (void) close(dtp->dt_ddefs_fd); 1333 if (dtp->dt_stdout_fd != -1) 1334 (void) close(dtp->dt_stdout_fd); 1335 1336 dt_epid_destroy(dtp); 1337 dt_aggid_destroy(dtp); 1338 dt_format_destroy(dtp); 1339 dt_buffered_destroy(dtp); 1340 dt_aggregate_destroy(dtp); 1341 free(dtp->dt_buf.dtbd_data); 1342 dt_pfdict_destroy(dtp); 1343 dt_provmod_destroy(&dtp->dt_provmod); 1344 dt_dof_fini(dtp); 1345 1346 for (i = 1; i < dtp->dt_cpp_argc; i++) 1347 free(dtp->dt_cpp_argv[i]); 1348 1349 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) { 1350 dt_list_delete(&dtp->dt_lib_path, dirp); 1351 free(dirp->dir_path); 1352 free(dirp); 1353 } 1354 1355 free(dtp->dt_cpp_argv); 1356 free(dtp->dt_cpp_path); 1357 free(dtp->dt_ld_path); 1358 1359 free(dtp->dt_mods); 1360 free(dtp->dt_provs); 1361 free(dtp); 1362} 1363 1364int 1365dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods) 1366{ 1367 dt_provmod_t *prov; 1368 int i = 0; 1369 1370 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) { 1371 if (i < nmods) 1372 mods[i] = prov->dp_name; 1373 } 1374 1375 return (i); 1376} 1377 1378int 1379dtrace_ctlfd(dtrace_hdl_t *dtp) 1380{ 1381 return (dtp->dt_fd); 1382} 1383