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_1_6_1 DT_VERSION_NUMBER(1, 6, 1) 107 #define DT_VERS_LATEST DT_VERS_1_6_1 108 #define DT_VERS_STRING "Sun D 1.6.1" 109 110 const dt_version_t _dtrace_versions[] = { 111 DT_VERS_1_0, /* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */ 112 DT_VERS_1_1, /* D API 1.1.0 Solaris Express 6/05 */ 113 DT_VERS_1_2, /* D API 1.2.0 Solaris 10 Update 1 */ 114 DT_VERS_1_2_1, /* D API 1.2.1 Solaris Express 4/06 */ 115 DT_VERS_1_2_2, /* D API 1.2.2 Solaris Express 6/06 */ 116 DT_VERS_1_3, /* D API 1.3 Solaris Express 10/06 */ 117 DT_VERS_1_4, /* D API 1.4 Solaris Express 2/07 */ 118 DT_VERS_1_4_1, /* D API 1.4.1 Solaris Express 4/07 */ 119 DT_VERS_1_5, /* D API 1.5 Solaris Express 7/07 */ 120 DT_VERS_1_6, /* D API 1.6 */ 121 DT_VERS_1_6_1, /* D API 1.6.1 */ 122 0 123 }; 124 125 /* 126 * Table of global identifiers. This is used to populate the global identifier 127 * hash when a new dtrace client open occurs. For more info see dt_ident.h. 128 * The global identifiers that represent functions use the dt_idops_func ops 129 * and specify the private data pointer as a prototype string which is parsed 130 * when the identifier is first encountered. These prototypes look like ANSI 131 * C function prototypes except that the special symbol "@" can be used as a 132 * wildcard to represent a single parameter of any type (i.e. any dt_node_t). 133 * The standard "..." notation can also be used to represent varargs. An empty 134 * parameter list is taken to mean void (that is, no arguments are permitted). 135 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional 136 * argument. 137 */ 138 static const dt_ident_t _dtrace_globals[] = { 139 { "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0, 140 &dt_idops_func, "void *(size_t)" }, 141 { "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0, 142 &dt_idops_type, "int64_t" }, 143 { "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0, 144 &dt_idops_type, "int64_t" }, 145 { "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0, 146 &dt_idops_type, "int64_t" }, 147 { "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0, 148 &dt_idops_type, "int64_t" }, 149 { "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0, 150 &dt_idops_type, "int64_t" }, 151 { "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0, 152 &dt_idops_type, "int64_t" }, 153 { "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0, 154 &dt_idops_type, "int64_t" }, 155 { "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0, 156 &dt_idops_type, "int64_t" }, 157 { "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0, 158 &dt_idops_type, "int64_t" }, 159 { "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0, 160 &dt_idops_type, "int64_t" }, 161 { "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0, 162 &dt_idops_args, NULL }, 163 { "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0, 164 &dt_idops_func, "void(@)" }, 165 { "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0, 166 &dt_idops_func, "string(const char *)" }, 167 { "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0, 168 &dt_idops_func, "void(void *, void *, size_t)" }, 169 { "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT, 170 DT_ATTR_STABCMN, DT_VERS_1_0, 171 &dt_idops_func, "void()" }, 172 { "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0, 173 &dt_idops_type, "uintptr_t" }, 174 { "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0, 175 &dt_idops_func, "void(int)" }, 176 { "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN, 177 DT_VERS_1_0, &dt_idops_func, "string(const char *)" }, 178 { "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0, 179 &dt_idops_func, "void(...)" }, 180 { "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0, 181 &dt_idops_func, "void(int)" }, 182 { "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0, 183 &dt_idops_func, "void *(uintptr_t, size_t)" }, 184 { "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR, 185 DT_ATTR_STABCMN, DT_VERS_1_0, 186 &dt_idops_func, "string(uintptr_t, [size_t])" }, 187 { "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN, 188 DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" }, 189 { "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0, 190 &dt_idops_func, "void(void *, uintptr_t, size_t)" }, 191 { "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR, 192 DT_ATTR_STABCMN, DT_VERS_1_0, 193 &dt_idops_func, "void(char *, uintptr_t, size_t)" }, 194 { "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0, 195 &dt_idops_func, "void()" }, 196 { "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD, 197 { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE, 198 DTRACE_CLASS_COMMON }, DT_VERS_1_0, 199 &dt_idops_type, "genunix`kthread_t *" }, 200 { "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME, 201 DT_ATTR_EVOLCMN, DT_VERS_1_0, 202 &dt_idops_func, "string(void *, int64_t)" }, 203 { "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN, 204 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 205 { "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0, 206 &dt_idops_func, "string(const char *)" }, 207 { "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0, 208 &dt_idops_func, "void(int)" }, 209 { "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0, 210 &dt_idops_type, "uint_t" }, 211 { "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0, 212 &dt_idops_type, "int" }, 213 { "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME, 214 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 215 { "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0, 216 &dt_idops_func, "void(int)" }, 217 { "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN, 218 DT_VERS_1_1, &dt_idops_func, "void(@, ...)" }, 219 { "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN, 220 DT_VERS_1_0, &dt_idops_func, "void()" }, 221 { "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 222 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 223 { "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR, 224 DT_ATTR_EVOLCMN, DT_VERS_1_0, 225 &dt_idops_func, "genunix`major_t(genunix`dev_t)" }, 226 { "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR, 227 DT_ATTR_EVOLCMN, DT_VERS_1_0, 228 &dt_idops_func, "genunix`minor_t(genunix`dev_t)" }, 229 { "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 230 &dt_idops_func, "uint32_t(uint32_t)" }, 231 { "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 232 &dt_idops_func, "uint64_t(uint64_t)" }, 233 { "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 234 &dt_idops_func, "uint16_t(uint16_t)" }, 235 { "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0, 236 &dt_idops_type, "gid_t" }, 237 { "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0, 238 &dt_idops_type, "uint_t" }, 239 { "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 240 &dt_idops_func, "int(const char *, const char *, [int])" }, 241 { "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN, 242 DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" }, 243 { "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN, 244 DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" }, 245 { "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN, 246 DT_VERS_1_5, &dt_idops_func, "string(int, void *)" }, 247 { "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0, 248 &dt_idops_type, "uint_t" }, 249 { "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 250 &dt_idops_func, "stack(...)" }, 251 { "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0, 252 &dt_idops_func, "string(int64_t)" }, 253 { "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE, 254 DT_ATTR_STABCMN, DT_VERS_1_0, 255 &dt_idops_func, "void(@, int32_t, int32_t, ...)" }, 256 { "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0, 257 &dt_idops_func, "void(@)" }, 258 { "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0, 259 &dt_idops_func, "void(@)" }, 260 { "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN, 261 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 262 { "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE, 263 DT_ATTR_STABCMN, DT_VERS_1_0, 264 &dt_idops_func, "size_t(mblk_t *)" }, 265 { "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE, 266 DT_ATTR_STABCMN, DT_VERS_1_0, 267 &dt_idops_func, "size_t(mblk_t *)" }, 268 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 269 DT_ATTR_EVOLCMN, DT_VERS_1_0, 270 &dt_idops_func, "int(genunix`kmutex_t *)" }, 271 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 272 DT_ATTR_EVOLCMN, DT_VERS_1_0, 273 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" }, 274 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 275 DT_ATTR_EVOLCMN, DT_VERS_1_0, 276 &dt_idops_func, "int(genunix`kmutex_t *)" }, 277 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 278 DT_ATTR_EVOLCMN, DT_VERS_1_0, 279 &dt_idops_func, "int(genunix`kmutex_t *)" }, 280 { "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 281 &dt_idops_func, "uint32_t(uint32_t)" }, 282 { "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 283 &dt_idops_func, "uint64_t(uint64_t)" }, 284 { "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 285 &dt_idops_func, "uint16_t(uint16_t)" }, 286 { "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN, 287 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 288 { "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0, 289 &dt_idops_func, "void()" }, 290 { "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0, 291 &dt_idops_type, "pid_t" }, 292 { "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0, 293 &dt_idops_type, "pid_t" }, 294 { "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0, 295 &dt_idops_func, "void(@, ...)" }, 296 { "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0, 297 &dt_idops_func, "void(@, ...)" }, 298 { "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC, 299 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 300 { "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD, 301 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 302 { "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME, 303 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 304 { "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV, 305 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 306 { "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF, 307 DT_ATTR_STABCMN, DT_VERS_1_0, 308 &dt_idops_func, "int(pid_t)" }, 309 { "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE, 310 DT_ATTR_STABCMN, DT_VERS_1_0, 311 &dt_idops_func, "void(@, ...)" }, 312 { "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0, 313 &dt_idops_func, "void(int)" }, 314 { "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0, 315 &dt_idops_func, "int()" }, 316 { "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 317 &dt_idops_func, "int(const char *, const char *, [int])" }, 318 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 319 DT_ATTR_EVOLCMN, DT_VERS_1_0, 320 &dt_idops_func, "int(genunix`krwlock_t *)" }, 321 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 322 DT_ATTR_EVOLCMN, DT_VERS_1_0, 323 &dt_idops_func, "int(genunix`krwlock_t *)" }, 324 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 325 DT_ATTR_EVOLCMN, DT_VERS_1_0, 326 &dt_idops_func, "int(genunix`krwlock_t *)" }, 327 { "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 328 &dt_idops_type, "void" }, 329 { "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN, 330 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" }, 331 { "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE, 332 DT_ATTR_STABCMN, DT_VERS_1_0, 333 &dt_idops_func, "void(int)" }, 334 { "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION, 335 DT_ATTR_STABCMN, DT_VERS_1_0, 336 &dt_idops_func, "int()" }, 337 { "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0, 338 &dt_idops_func, "stack(...)" }, 339 { "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH, 340 DT_ATTR_STABCMN, DT_VERS_1_0, 341 &dt_idops_type, "uint32_t" }, 342 { "stddev", DT_IDENT_AGGFUNC, 0, DTRACEAGG_STDDEV, DT_ATTR_STABCMN, 343 DT_VERS_1_6, &dt_idops_func, "void(@)" }, 344 { "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0, 345 &dt_idops_func, "void()" }, 346 { "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 347 &dt_idops_func, "string(const char *, char)" }, 348 { "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0, 349 &dt_idops_func, "size_t(const char *)" }, 350 { "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0, 351 &dt_idops_func, "string(const char *, const char *)" }, 352 { "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 353 &dt_idops_func, "string(const char *, char)" }, 354 { "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 355 &dt_idops_func, "string(const char *, const char *)" }, 356 { "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1, 357 &dt_idops_func, "string(const char *, const char *)" }, 358 { "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 359 &dt_idops_func, "string(const char *, int, [int])" }, 360 { "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0, 361 &dt_idops_func, "void(@)" }, 362 { "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 363 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 364 { "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0, 365 &dt_idops_func, "void(@, ...)" }, 366 { "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 367 &dt_idops_type, "void" }, 368 { "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0, 369 &dt_idops_type, "id_t" }, 370 { "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP, 371 DT_ATTR_STABCMN, DT_VERS_1_0, 372 &dt_idops_type, "uint64_t" }, 373 { "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0, 374 &dt_idops_func, "void(@)" }, 375 { "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM, 376 DT_ATTR_STABCMN, DT_VERS_1_0, 377 &dt_idops_func, "void(@, size_t)" }, 378 { "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN, 379 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 380 { "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN, 381 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 382 { "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN, 383 DT_VERS_1_2, &dt_idops_type, "uint64_t" }, 384 { "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 385 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 386 { "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0, 387 &dt_idops_type, "uid_t" }, 388 { "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN, 389 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 390 { "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0, 391 &dt_idops_regs, NULL }, 392 { "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 393 &dt_idops_func, "stack(...)" }, 394 { "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH, 395 DT_ATTR_STABCMN, DT_VERS_1_2, 396 &dt_idops_type, "uint32_t" }, 397 { "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 398 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 399 { "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP, 400 DT_ATTR_STABCMN, DT_VERS_1_0, 401 &dt_idops_type, "uint64_t" }, 402 { "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP, 403 DT_ATTR_STABCMN, DT_VERS_1_0, 404 &dt_idops_type, "int64_t" }, 405 { "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME, 406 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 407 { NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL } 408 }; 409 410 /* 411 * Tables of ILP32 intrinsic integer and floating-point type templates to use 412 * to populate the dynamic "C" CTF type container. 413 */ 414 static const dt_intrinsic_t _dtrace_intrinsics_32[] = { 415 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 416 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 417 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 418 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 419 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 420 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 421 { "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 422 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 423 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 424 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 425 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 426 { "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 427 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 428 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 429 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 430 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 431 { "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER }, 432 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 433 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 434 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 435 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 436 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 437 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 438 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 439 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 440 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 441 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 442 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 443 { NULL, { 0, 0, 0 }, 0 } 444 }; 445 446 /* 447 * Tables of LP64 intrinsic integer and floating-point type templates to use 448 * to populate the dynamic "C" CTF type container. 449 */ 450 static const dt_intrinsic_t _dtrace_intrinsics_64[] = { 451 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 452 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 453 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 454 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 455 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 456 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 457 { "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 458 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 459 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 460 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 461 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 462 { "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 463 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 464 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 465 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 466 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 467 { "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER }, 468 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 469 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 470 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 471 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 472 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 473 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 474 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 475 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 476 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 477 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 478 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 479 { NULL, { 0, 0, 0 }, 0 } 480 }; 481 482 /* 483 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container. 484 * These aliases ensure that D definitions can use typical <sys/types.h> names. 485 */ 486 static const dt_typedef_t _dtrace_typedefs_32[] = { 487 { "char", "int8_t" }, 488 { "short", "int16_t" }, 489 { "int", "int32_t" }, 490 { "long long", "int64_t" }, 491 { "int", "intptr_t" }, 492 { "int", "ssize_t" }, 493 { "unsigned char", "uint8_t" }, 494 { "unsigned short", "uint16_t" }, 495 { "unsigned", "uint32_t" }, 496 { "unsigned long long", "uint64_t" }, 497 { "unsigned char", "uchar_t" }, 498 { "unsigned short", "ushort_t" }, 499 { "unsigned", "uint_t" }, 500 { "unsigned long", "ulong_t" }, 501 { "unsigned long long", "u_longlong_t" }, 502 { "int", "ptrdiff_t" }, 503 { "unsigned", "uintptr_t" }, 504 { "unsigned", "size_t" }, 505 { "long", "id_t" }, 506 { "long", "pid_t" }, 507 { NULL, NULL } 508 }; 509 510 /* 511 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container. 512 * These aliases ensure that D definitions can use typical <sys/types.h> names. 513 */ 514 static const dt_typedef_t _dtrace_typedefs_64[] = { 515 { "char", "int8_t" }, 516 { "short", "int16_t" }, 517 { "int", "int32_t" }, 518 { "long", "int64_t" }, 519 { "long", "intptr_t" }, 520 { "long", "ssize_t" }, 521 { "unsigned char", "uint8_t" }, 522 { "unsigned short", "uint16_t" }, 523 { "unsigned", "uint32_t" }, 524 { "unsigned long", "uint64_t" }, 525 { "unsigned char", "uchar_t" }, 526 { "unsigned short", "ushort_t" }, 527 { "unsigned", "uint_t" }, 528 { "unsigned long", "ulong_t" }, 529 { "unsigned long long", "u_longlong_t" }, 530 { "long", "ptrdiff_t" }, 531 { "unsigned long", "uintptr_t" }, 532 { "unsigned long", "size_t" }, 533 { "int", "id_t" }, 534 { "int", "pid_t" }, 535 { NULL, NULL } 536 }; 537 538 /* 539 * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[] 540 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 541 */ 542 static const dt_intdesc_t _dtrace_ints_32[] = { 543 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 544 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 545 { "long", NULL, CTF_ERR, 0x7fffffffULL }, 546 { "unsigned long", NULL, CTF_ERR, 0xffffffffULL }, 547 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 548 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 549 }; 550 551 /* 552 * Tables of LP64 integer type templates used to populate the dtp->dt_ints[] 553 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 554 */ 555 static const dt_intdesc_t _dtrace_ints_64[] = { 556 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 557 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 558 { "long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 559 { "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL }, 560 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 561 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 562 }; 563 564 /* 565 * Table of macro variable templates used to populate the macro identifier hash 566 * when a new dtrace client open occurs. Values are set by dtrace_update(). 567 */ 568 static const dt_ident_t _dtrace_macros[] = { 569 { "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 570 { "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 571 { "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 572 { "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 573 { "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 574 { "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 575 { "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 576 { "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 577 { "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 578 { "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 579 { "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 580 { NULL, 0, 0, 0, { 0, 0, 0 }, 0 } 581 }; 582 583 /* 584 * Hard-wired definition string to be compiled and cached every time a new 585 * DTrace library handle is initialized. This string should only be used to 586 * contain definitions that should be present regardless of DTRACE_O_NOLIBS. 587 */ 588 static const char _dtrace_hardwire[] = "\ 589 inline long NULL = 0; \n\ 590 #pragma D binding \"1.0\" NULL\n\ 591 "; 592 593 /* 594 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV. 595 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel. 596 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are 597 * relying on the fact that when running dtrace(1M), isaexec will invoke the 598 * binary with the same bitness as the kernel, which is what we want by default 599 * when generating our DIF. The user can override the choice using oflags. 600 */ 601 static const dtrace_conf_t _dtrace_conf = { 602 DIF_VERSION, /* dtc_difversion */ 603 DIF_DIR_NREGS, /* dtc_difintregs */ 604 DIF_DTR_NREGS, /* dtc_diftupregs */ 605 CTF_MODEL_NATIVE /* dtc_ctfmodel */ 606 }; 607 608 const dtrace_attribute_t _dtrace_maxattr = { 609 DTRACE_STABILITY_MAX, 610 DTRACE_STABILITY_MAX, 611 DTRACE_CLASS_MAX 612 }; 613 614 const dtrace_attribute_t _dtrace_defattr = { 615 DTRACE_STABILITY_STABLE, 616 DTRACE_STABILITY_STABLE, 617 DTRACE_CLASS_COMMON 618 }; 619 620 const dtrace_attribute_t _dtrace_symattr = { 621 DTRACE_STABILITY_PRIVATE, 622 DTRACE_STABILITY_PRIVATE, 623 DTRACE_CLASS_UNKNOWN 624 }; 625 626 const dtrace_attribute_t _dtrace_typattr = { 627 DTRACE_STABILITY_PRIVATE, 628 DTRACE_STABILITY_PRIVATE, 629 DTRACE_CLASS_UNKNOWN 630 }; 631 632 const dtrace_attribute_t _dtrace_prvattr = { 633 DTRACE_STABILITY_PRIVATE, 634 DTRACE_STABILITY_PRIVATE, 635 DTRACE_CLASS_UNKNOWN 636 }; 637 638 const dtrace_pattr_t _dtrace_prvdesc = { 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 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 643 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 644 }; 645 646 const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */ 647 const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */ 648 649 const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */ 650 const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */ 651 652 int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */ 653 int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */ 654 uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */ 655 uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */ 656 uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */ 657 uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */ 658 size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */ 659 int _dtrace_argmax = 32; /* default maximum number of probe arguments */ 660 661 int _dtrace_debug = 0; /* debug messages enabled (off) */ 662 const char *const _dtrace_version = DT_VERS_STRING; /* API version string */ 663 int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */ 664 665 typedef struct dt_fdlist { 666 int *df_fds; /* array of provider driver file descriptors */ 667 uint_t df_ents; /* number of valid elements in df_fds[] */ 668 uint_t df_size; /* size of df_fds[] */ 669 } dt_fdlist_t; 670 671 #pragma init(_dtrace_init) 672 void 673 _dtrace_init(void) 674 { 675 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL; 676 677 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) { 678 if (rd_init(_dtrace_rdvers) == RD_OK) 679 break; 680 } 681 } 682 683 static dtrace_hdl_t * 684 set_open_errno(dtrace_hdl_t *dtp, int *errp, int err) 685 { 686 if (dtp != NULL) 687 dtrace_close(dtp); 688 if (errp != NULL) 689 *errp = err; 690 return (NULL); 691 } 692 693 static void 694 dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp) 695 { 696 dt_provmod_t *prov; 697 char path[PATH_MAX]; 698 struct dirent *dp, *ep; 699 DIR *dirp; 700 int fd; 701 702 if ((dirp = opendir(_dtrace_provdir)) == NULL) 703 return; /* failed to open directory; just skip it */ 704 705 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1); 706 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1); 707 708 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) { 709 if (dp->d_name[0] == '.') 710 continue; /* skip "." and ".." */ 711 712 if (dfp->df_ents == dfp->df_size) { 713 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 714 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 715 716 if (fds == NULL) 717 break; /* skip the rest of this directory */ 718 719 dfp->df_fds = fds; 720 dfp->df_size = size; 721 } 722 723 (void) snprintf(path, sizeof (path), "%s/%s", 724 _dtrace_provdir, dp->d_name); 725 726 if ((fd = open(path, O_RDONLY)) == -1) 727 continue; /* failed to open driver; just skip it */ 728 729 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 730 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) { 731 free(prov); 732 (void) close(fd); 733 break; 734 } 735 736 (void) strcpy(prov->dp_name, dp->d_name); 737 prov->dp_next = *provmod; 738 *provmod = prov; 739 740 dt_dprintf("opened provider %s\n", dp->d_name); 741 dfp->df_fds[dfp->df_ents++] = fd; 742 } 743 744 (void) closedir(dirp); 745 } 746 747 static void 748 dt_provmod_destroy(dt_provmod_t **provmod) 749 { 750 dt_provmod_t *next, *current; 751 752 for (current = *provmod; current != NULL; current = next) { 753 next = current->dp_next; 754 free(current->dp_name); 755 free(current); 756 } 757 758 *provmod = NULL; 759 } 760 761 static const char * 762 dt_get_sysinfo(int cmd, char *buf, size_t len) 763 { 764 ssize_t rv = sysinfo(cmd, buf, len); 765 char *p = buf; 766 767 if (rv < 0 || rv > len) 768 (void) snprintf(buf, len, "%s", "Unknown"); 769 770 while ((p = strchr(p, '.')) != NULL) 771 *p++ = '_'; 772 773 return (buf); 774 } 775 776 static dtrace_hdl_t * 777 dt_vopen(int version, int flags, int *errp, 778 const dtrace_vector_t *vector, void *arg) 779 { 780 dtrace_hdl_t *dtp = NULL; 781 int dtfd = -1, ftfd = -1, fterr = 0; 782 dtrace_prog_t *pgp; 783 dt_module_t *dmp; 784 dt_provmod_t *provmod = NULL; 785 int i, err; 786 struct rlimit rl; 787 788 const dt_intrinsic_t *dinp; 789 const dt_typedef_t *dtyp; 790 const dt_ident_t *idp; 791 792 dtrace_typeinfo_t dtt; 793 ctf_funcinfo_t ctc; 794 ctf_arinfo_t ctr; 795 796 dt_fdlist_t df = { NULL, 0, 0 }; 797 798 char isadef[32], utsdef[32]; 799 char s1[64], s2[64]; 800 801 if (version <= 0) 802 return (set_open_errno(dtp, errp, EINVAL)); 803 804 if (version > DTRACE_VERSION) 805 return (set_open_errno(dtp, errp, EDT_VERSION)); 806 807 if (version < DTRACE_VERSION) { 808 /* 809 * Currently, increasing the library version number is used to 810 * denote a binary incompatible change. That is, a consumer 811 * of the library cannot run on a version of the library with 812 * a higher DTRACE_VERSION number than the consumer compiled 813 * against. Once the library API has been committed to, 814 * backwards binary compatibility will be required; at that 815 * time, this check should change to return EDT_OVERSION only 816 * if the specified version number is less than the version 817 * number at the time of interface commitment. 818 */ 819 return (set_open_errno(dtp, errp, EDT_OVERSION)); 820 } 821 822 if (flags & ~DTRACE_O_MASK) 823 return (set_open_errno(dtp, errp, EINVAL)); 824 825 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32)) 826 return (set_open_errno(dtp, errp, EINVAL)); 827 828 if (vector == NULL && arg != NULL) 829 return (set_open_errno(dtp, errp, EINVAL)); 830 831 if (elf_version(EV_CURRENT) == EV_NONE) 832 return (set_open_errno(dtp, errp, EDT_ELFVERSION)); 833 834 if (vector != NULL || (flags & DTRACE_O_NODEV)) 835 goto alloc; /* do not attempt to open dtrace device */ 836 837 /* 838 * Before we get going, crank our limit on file descriptors up to the 839 * hard limit. This is to allow for the fact that libproc keeps file 840 * descriptors to objects open for the lifetime of the proc handle; 841 * without raising our hard limit, we would have an acceptably small 842 * bound on the number of processes that we could concurrently 843 * instrument with the pid provider. 844 */ 845 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) { 846 rl.rlim_cur = rl.rlim_max; 847 (void) setrlimit(RLIMIT_NOFILE, &rl); 848 } 849 850 /* 851 * Get the device path of each of the providers. We hold them open 852 * in the df.df_fds list until we open the DTrace driver itself, 853 * allowing us to see all of the probes provided on this system. Once 854 * we have the DTrace driver open, we can safely close all the providers 855 * now that they have registered with the framework. 856 */ 857 dt_provmod_open(&provmod, &df); 858 859 dtfd = open("/dev/dtrace/dtrace", O_RDWR); 860 err = errno; /* save errno from opening dtfd */ 861 862 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR); 863 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */ 864 865 while (df.df_ents-- != 0) 866 (void) close(df.df_fds[df.df_ents]); 867 868 free(df.df_fds); 869 870 /* 871 * If we failed to open the dtrace device, fail dtrace_open(). 872 * We convert some kernel errnos to custom libdtrace errnos to 873 * improve the resulting message from the usual strerror(). 874 */ 875 if (dtfd == -1) { 876 dt_provmod_destroy(&provmod); 877 switch (err) { 878 case ENOENT: 879 err = EDT_NOENT; 880 break; 881 case EBUSY: 882 err = EDT_BUSY; 883 break; 884 case EACCES: 885 err = EDT_ACCESS; 886 break; 887 } 888 return (set_open_errno(dtp, errp, err)); 889 } 890 891 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC); 892 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC); 893 894 alloc: 895 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL) 896 return (set_open_errno(dtp, errp, EDT_NOMEM)); 897 898 bzero(dtp, sizeof (dtrace_hdl_t)); 899 dtp->dt_oflags = flags; 900 dtp->dt_prcmode = DT_PROC_STOP_PREINIT; 901 dtp->dt_linkmode = DT_LINK_KERNEL; 902 dtp->dt_linktype = DT_LTYP_ELF; 903 dtp->dt_xlatemode = DT_XL_STATIC; 904 dtp->dt_stdcmode = DT_STDC_XA; 905 dtp->dt_version = version; 906 dtp->dt_fd = dtfd; 907 dtp->dt_ftfd = ftfd; 908 dtp->dt_fterr = fterr; 909 dtp->dt_cdefs_fd = -1; 910 dtp->dt_ddefs_fd = -1; 911 dtp->dt_stdout_fd = -1; 912 dtp->dt_modbuckets = _dtrace_strbuckets; 913 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *)); 914 dtp->dt_provbuckets = _dtrace_strbuckets; 915 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *)); 916 dt_proc_hash_create(dtp); 917 dtp->dt_vmax = DT_VERS_LATEST; 918 dtp->dt_cpp_path = strdup(_dtrace_defcpp); 919 dtp->dt_cpp_argv = malloc(sizeof (char *)); 920 dtp->dt_cpp_argc = 1; 921 dtp->dt_cpp_args = 1; 922 dtp->dt_ld_path = strdup(_dtrace_defld); 923 dtp->dt_provmod = provmod; 924 dtp->dt_vector = vector; 925 dtp->dt_varg = arg; 926 dt_dof_init(dtp); 927 (void) uname(&dtp->dt_uts); 928 929 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL || 930 dtp->dt_procs == NULL || dtp->dt_ld_path == NULL || 931 dtp->dt_cpp_path == NULL || dtp->dt_cpp_argv == NULL) 932 return (set_open_errno(dtp, errp, EDT_NOMEM)); 933 934 for (i = 0; i < DTRACEOPT_MAX; i++) 935 dtp->dt_options[i] = DTRACEOPT_UNSET; 936 937 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path); 938 939 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u", 940 (uint_t)(sizeof (void *) * NBBY)); 941 942 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s", 943 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)), 944 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2))); 945 946 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL || 947 dt_cpp_add_arg(dtp, "-D__unix") == NULL || 948 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL || 949 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL || 950 dt_cpp_add_arg(dtp, isadef) == NULL || 951 dt_cpp_add_arg(dtp, utsdef) == NULL) 952 return (set_open_errno(dtp, errp, EDT_NOMEM)); 953 954 if (flags & DTRACE_O_NODEV) 955 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf)); 956 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0) 957 return (set_open_errno(dtp, errp, errno)); 958 959 if (flags & DTRACE_O_LP64) 960 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64; 961 else if (flags & DTRACE_O_ILP32) 962 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32; 963 964 #ifdef __sparc 965 /* 966 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h> 967 * and __sparcv9 is defined if we are doing a 64-bit compile. 968 */ 969 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL) 970 return (set_open_errno(dtp, errp, EDT_NOMEM)); 971 972 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 && 973 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL) 974 return (set_open_errno(dtp, errp, EDT_NOMEM)); 975 #endif 976 977 #ifdef __x86 978 /* 979 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit 980 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC, 981 * they are defined exclusive of one another (see PSARC 2004/619). 982 */ 983 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 984 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL) 985 return (set_open_errno(dtp, errp, EDT_NOMEM)); 986 } else { 987 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL) 988 return (set_open_errno(dtp, errp, EDT_NOMEM)); 989 } 990 #endif 991 992 if (dtp->dt_conf.dtc_difversion < DIF_VERSION) 993 return (set_open_errno(dtp, errp, EDT_DIFVERS)); 994 995 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) 996 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32)); 997 else 998 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64)); 999 1000 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX); 1001 dtp->dt_aggs = dt_idhash_create("aggregation", NULL, 1002 DTRACE_AGGVARIDNONE + 1, UINT_MAX); 1003 1004 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals, 1005 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1006 1007 dtp->dt_tls = dt_idhash_create("thread local", NULL, 1008 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1009 1010 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL || 1011 dtp->dt_globals == NULL || dtp->dt_tls == NULL) 1012 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1013 1014 /* 1015 * Populate the dt_macros identifier hash table by hand: we can't use 1016 * the dt_idhash_populate() mechanism because we're not yet compiling 1017 * and dtrace_update() needs to immediately reference these idents. 1018 */ 1019 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) { 1020 if (dt_idhash_insert(dtp->dt_macros, idp->di_name, 1021 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr, 1022 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw, 1023 idp->di_iarg, 0) == NULL) 1024 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1025 } 1026 1027 /* 1028 * Update the module list using /system/object and load the values for 1029 * the macro variable definitions according to the current process. 1030 */ 1031 dtrace_update(dtp); 1032 1033 /* 1034 * Select the intrinsics and typedefs we want based on the data model. 1035 * The intrinsics are under "C". The typedefs are added under "D". 1036 */ 1037 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) { 1038 dinp = _dtrace_intrinsics_32; 1039 dtyp = _dtrace_typedefs_32; 1040 } else { 1041 dinp = _dtrace_intrinsics_64; 1042 dtyp = _dtrace_typedefs_64; 1043 } 1044 1045 /* 1046 * Create a dynamic CTF container under the "C" scope for intrinsic 1047 * types and types defined in ANSI-C header files that are included. 1048 */ 1049 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL) 1050 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1051 1052 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1053 return (set_open_errno(dtp, errp, EDT_CTF)); 1054 1055 dt_dprintf("created CTF container for %s (%p)\n", 1056 dmp->dm_name, (void *)dmp->dm_ctfp); 1057 1058 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1059 ctf_setspecific(dmp->dm_ctfp, dmp); 1060 1061 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1062 dmp->dm_modid = -1; /* no module ID */ 1063 1064 /* 1065 * Fill the dynamic "C" CTF container with all of the intrinsic 1066 * integer and floating-point types appropriate for this data model. 1067 */ 1068 for (; dinp->din_name != NULL; dinp++) { 1069 if (dinp->din_kind == CTF_K_INTEGER) { 1070 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT, 1071 dinp->din_name, &dinp->din_data); 1072 } else { 1073 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT, 1074 dinp->din_name, &dinp->din_data); 1075 } 1076 1077 if (err == CTF_ERR) { 1078 dt_dprintf("failed to add %s to C container: %s\n", 1079 dinp->din_name, ctf_errmsg( 1080 ctf_errno(dmp->dm_ctfp))); 1081 return (set_open_errno(dtp, errp, EDT_CTF)); 1082 } 1083 } 1084 1085 if (ctf_update(dmp->dm_ctfp) != 0) { 1086 dt_dprintf("failed to update C container: %s\n", 1087 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1088 return (set_open_errno(dtp, errp, EDT_CTF)); 1089 } 1090 1091 /* 1092 * Add intrinsic pointer types that are needed to initialize printf 1093 * format dictionary types (see table in dt_printf.c). 1094 */ 1095 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1096 ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1097 1098 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1099 ctf_lookup_by_name(dmp->dm_ctfp, "char")); 1100 1101 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1102 ctf_lookup_by_name(dmp->dm_ctfp, "int")); 1103 1104 if (ctf_update(dmp->dm_ctfp) != 0) { 1105 dt_dprintf("failed to update C container: %s\n", 1106 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1107 return (set_open_errno(dtp, errp, EDT_CTF)); 1108 } 1109 1110 /* 1111 * Create a dynamic CTF container under the "D" scope for types that 1112 * are defined by the D program itself or on-the-fly by the D compiler. 1113 * The "D" CTF container is a child of the "C" CTF container. 1114 */ 1115 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL) 1116 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1117 1118 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1119 return (set_open_errno(dtp, errp, EDT_CTF)); 1120 1121 dt_dprintf("created CTF container for %s (%p)\n", 1122 dmp->dm_name, (void *)dmp->dm_ctfp); 1123 1124 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1125 ctf_setspecific(dmp->dm_ctfp, dmp); 1126 1127 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1128 dmp->dm_modid = -1; /* no module ID */ 1129 1130 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) { 1131 dt_dprintf("failed to import D parent container: %s\n", 1132 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1133 return (set_open_errno(dtp, errp, EDT_CTF)); 1134 } 1135 1136 /* 1137 * Fill the dynamic "D" CTF container with all of the built-in typedefs 1138 * that we need to use for our D variable and function definitions. 1139 * This ensures that basic inttypes.h names are always available to us. 1140 */ 1141 for (; dtyp->dty_src != NULL; dtyp++) { 1142 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1143 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp, 1144 dtyp->dty_src)) == CTF_ERR) { 1145 dt_dprintf("failed to add typedef %s %s to D " 1146 "container: %s", dtyp->dty_src, dtyp->dty_dst, 1147 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1148 return (set_open_errno(dtp, errp, EDT_CTF)); 1149 } 1150 } 1151 1152 /* 1153 * Insert a CTF ID corresponding to a pointer to a type of kind 1154 * CTF_K_FUNCTION we can use in the compiler for function pointers. 1155 * CTF treats all function pointers as "int (*)()" so we only need one. 1156 */ 1157 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int"); 1158 ctc.ctc_argc = 0; 1159 ctc.ctc_flags = 0; 1160 1161 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp, 1162 CTF_ADD_ROOT, &ctc, NULL); 1163 1164 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp, 1165 CTF_ADD_ROOT, dtp->dt_type_func); 1166 1167 /* 1168 * We also insert CTF definitions for the special D intrinsic types 1169 * string and <DYN> into the D container. The string type is added 1170 * as a typedef of char[n]. The <DYN> type is an alias for void. 1171 * We compare types to these special CTF ids throughout the compiler. 1172 */ 1173 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char"); 1174 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long"); 1175 ctr.ctr_nelems = _dtrace_strsize; 1176 1177 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1178 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr)); 1179 1180 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1181 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1182 1183 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1184 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1185 1186 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1187 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1188 1189 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1190 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1191 1192 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR || 1193 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR || 1194 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR || 1195 dtp->dt_type_usymaddr == CTF_ERR) { 1196 dt_dprintf("failed to add intrinsic to D container: %s\n", 1197 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1198 return (set_open_errno(dtp, errp, EDT_CTF)); 1199 } 1200 1201 if (ctf_update(dmp->dm_ctfp) != 0) { 1202 dt_dprintf("failed update D container: %s\n", 1203 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1204 return (set_open_errno(dtp, errp, EDT_CTF)); 1205 } 1206 1207 /* 1208 * Initialize the integer description table used to convert integer 1209 * constants to the appropriate types. Refer to the comments above 1210 * dt_node_int() for a complete description of how this table is used. 1211 */ 1212 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) { 1213 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY, 1214 dtp->dt_ints[i].did_name, &dtt) != 0) { 1215 dt_dprintf("failed to lookup integer type %s: %s\n", 1216 dtp->dt_ints[i].did_name, 1217 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1218 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1219 } 1220 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp; 1221 dtp->dt_ints[i].did_type = dtt.dtt_type; 1222 } 1223 1224 /* 1225 * Now that we've created the "C" and "D" containers, move them to the 1226 * start of the module list so that these types and symbols are found 1227 * first (for stability) when iterating through the module list. 1228 */ 1229 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs); 1230 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs); 1231 1232 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs); 1233 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs); 1234 1235 if (dt_pfdict_create(dtp) == -1) 1236 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1237 1238 /* 1239 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default 1240 * because without /dev/dtrace open, we will not be able to load the 1241 * names and attributes of any providers or probes from the kernel. 1242 */ 1243 if (flags & DTRACE_O_NODEV) 1244 dtp->dt_cflags |= DTRACE_C_ZDEFS; 1245 1246 /* 1247 * Load hard-wired inlines into the definition cache by calling the 1248 * compiler on the raw definition string defined above. 1249 */ 1250 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire, 1251 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) { 1252 dt_dprintf("failed to load hard-wired definitions: %s\n", 1253 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1254 return (set_open_errno(dtp, errp, EDT_HARDWIRE)); 1255 } 1256 1257 dt_program_destroy(dtp, pgp); 1258 1259 /* 1260 * Set up the default DTrace library path. Once set, the next call to 1261 * dt_compile() will compile all the libraries. We intentionally defer 1262 * library processing to improve overhead for clients that don't ever 1263 * compile, and to provide better error reporting (because the full 1264 * reporting of compiler errors requires dtrace_open() to succeed). 1265 */ 1266 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0) 1267 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1268 1269 return (dtp); 1270 } 1271 1272 dtrace_hdl_t * 1273 dtrace_open(int version, int flags, int *errp) 1274 { 1275 return (dt_vopen(version, flags, errp, NULL, NULL)); 1276 } 1277 1278 dtrace_hdl_t * 1279 dtrace_vopen(int version, int flags, int *errp, 1280 const dtrace_vector_t *vector, void *arg) 1281 { 1282 return (dt_vopen(version, flags, errp, vector, arg)); 1283 } 1284 1285 void 1286 dtrace_close(dtrace_hdl_t *dtp) 1287 { 1288 dt_ident_t *idp, *ndp; 1289 dt_module_t *dmp; 1290 dt_provider_t *pvp; 1291 dtrace_prog_t *pgp; 1292 dt_xlator_t *dxp; 1293 dt_dirpath_t *dirp; 1294 int i; 1295 1296 if (dtp->dt_procs != NULL) 1297 dt_proc_hash_destroy(dtp); 1298 1299 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL) 1300 dt_program_destroy(dtp, pgp); 1301 1302 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL) 1303 dt_xlator_destroy(dtp, dxp); 1304 1305 dt_free(dtp, dtp->dt_xlatormap); 1306 1307 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) { 1308 ndp = idp->di_next; 1309 dt_ident_destroy(idp); 1310 } 1311 1312 if (dtp->dt_macros != NULL) 1313 dt_idhash_destroy(dtp->dt_macros); 1314 if (dtp->dt_aggs != NULL) 1315 dt_idhash_destroy(dtp->dt_aggs); 1316 if (dtp->dt_globals != NULL) 1317 dt_idhash_destroy(dtp->dt_globals); 1318 if (dtp->dt_tls != NULL) 1319 dt_idhash_destroy(dtp->dt_tls); 1320 1321 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL) 1322 dt_module_destroy(dtp, dmp); 1323 1324 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL) 1325 dt_provider_destroy(dtp, pvp); 1326 1327 if (dtp->dt_fd != -1) 1328 (void) close(dtp->dt_fd); 1329 if (dtp->dt_ftfd != -1) 1330 (void) close(dtp->dt_ftfd); 1331 if (dtp->dt_cdefs_fd != -1) 1332 (void) close(dtp->dt_cdefs_fd); 1333 if (dtp->dt_ddefs_fd != -1) 1334 (void) close(dtp->dt_ddefs_fd); 1335 if (dtp->dt_stdout_fd != -1) 1336 (void) close(dtp->dt_stdout_fd); 1337 1338 dt_epid_destroy(dtp); 1339 dt_aggid_destroy(dtp); 1340 dt_format_destroy(dtp); 1341 dt_buffered_destroy(dtp); 1342 dt_aggregate_destroy(dtp); 1343 free(dtp->dt_buf.dtbd_data); 1344 dt_pfdict_destroy(dtp); 1345 dt_provmod_destroy(&dtp->dt_provmod); 1346 dt_dof_fini(dtp); 1347 1348 for (i = 1; i < dtp->dt_cpp_argc; i++) 1349 free(dtp->dt_cpp_argv[i]); 1350 1351 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) { 1352 dt_list_delete(&dtp->dt_lib_path, dirp); 1353 free(dirp->dir_path); 1354 free(dirp); 1355 } 1356 1357 free(dtp->dt_cpp_argv); 1358 free(dtp->dt_cpp_path); 1359 free(dtp->dt_ld_path); 1360 1361 free(dtp->dt_mods); 1362 free(dtp->dt_provs); 1363 free(dtp); 1364 } 1365 1366 int 1367 dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods) 1368 { 1369 dt_provmod_t *prov; 1370 int i = 0; 1371 1372 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) { 1373 if (i < nmods) 1374 mods[i] = prov->dp_name; 1375 } 1376 1377 return (i); 1378 } 1379 1380 int 1381 dtrace_ctlfd(dtrace_hdl_t *dtp) 1382 { 1383 return (dtp->dt_fd); 1384 } 1385