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 2006 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_LATEST DT_VERS_1_2_2 102 #define DT_VERS_STRING "Sun D 1.2.2" 103 104 const dt_version_t _dtrace_versions[] = { 105 DT_VERS_1_0, /* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */ 106 DT_VERS_1_1, /* D API 1.1.0 Solaris Express 6/05 */ 107 DT_VERS_1_2, /* D API 1.2.0 Solaris 10 Update 1 */ 108 DT_VERS_1_2_1, /* D API 1.2.1 Solaris Express 4/06 */ 109 DT_VERS_1_2_2, /* D API 1.2.2 Solaris Express 6/06 */ 110 0 111 }; 112 113 /* 114 * Table of global identifiers. This is used to populate the global identifier 115 * hash when a new dtrace client open occurs. For more info see dt_ident.h. 116 * The global identifiers that represent functions use the dt_idops_func ops 117 * and specify the private data pointer as a prototype string which is parsed 118 * when the identifier is first encountered. These prototypes look like ANSI 119 * C function prototypes except that the special symbol "@" can be used as a 120 * wildcard to represent a single parameter of any type (i.e. any dt_node_t). 121 * The standard "..." notation can also be used to represent varargs. An empty 122 * parameter list is taken to mean void (that is, no arguments are permitted). 123 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional 124 * argument. 125 */ 126 static const dt_ident_t _dtrace_globals[] = { 127 { "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0, 128 &dt_idops_func, "void *(size_t)" }, 129 { "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0, 130 &dt_idops_type, "int64_t" }, 131 { "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0, 132 &dt_idops_type, "int64_t" }, 133 { "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0, 134 &dt_idops_type, "int64_t" }, 135 { "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0, 136 &dt_idops_type, "int64_t" }, 137 { "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0, 138 &dt_idops_type, "int64_t" }, 139 { "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0, 140 &dt_idops_type, "int64_t" }, 141 { "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0, 142 &dt_idops_type, "int64_t" }, 143 { "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0, 144 &dt_idops_type, "int64_t" }, 145 { "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0, 146 &dt_idops_type, "int64_t" }, 147 { "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0, 148 &dt_idops_type, "int64_t" }, 149 { "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0, 150 &dt_idops_args, NULL }, 151 { "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0, 152 &dt_idops_func, "void(@)" }, 153 { "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0, 154 &dt_idops_func, "string(const char *)" }, 155 { "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0, 156 &dt_idops_func, "void(void *, void *, size_t)" }, 157 { "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT, 158 DT_ATTR_STABCMN, DT_VERS_1_0, 159 &dt_idops_func, "void()" }, 160 { "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0, 161 &dt_idops_type, "uintptr_t" }, 162 { "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0, 163 &dt_idops_func, "void(int)" }, 164 { "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN, 165 DT_VERS_1_0, &dt_idops_func, "string(const char *)" }, 166 { "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0, 167 &dt_idops_func, "void(...)" }, 168 { "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0, 169 &dt_idops_func, "void(int)" }, 170 { "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0, 171 &dt_idops_func, "void *(uintptr_t, size_t)" }, 172 { "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR, 173 DT_ATTR_STABCMN, DT_VERS_1_0, 174 &dt_idops_func, "string(uintptr_t, [size_t])" }, 175 { "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN, 176 DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" }, 177 { "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0, 178 &dt_idops_func, "void(void *, uintptr_t, size_t)" }, 179 { "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR, 180 DT_ATTR_STABCMN, DT_VERS_1_0, 181 &dt_idops_func, "void(char *, uintptr_t, size_t)" }, 182 { "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0, 183 &dt_idops_func, "void()" }, 184 { "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD, 185 { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE, 186 DTRACE_CLASS_COMMON }, DT_VERS_1_0, 187 &dt_idops_type, "genunix`kthread_t *" }, 188 { "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME, 189 DT_ATTR_EVOLCMN, DT_VERS_1_0, 190 &dt_idops_func, "string(void *, int64_t)" }, 191 { "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN, 192 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 193 { "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0, 194 &dt_idops_func, "string(const char *)" }, 195 { "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0, 196 &dt_idops_func, "void(int)" }, 197 { "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0, 198 &dt_idops_type, "uint_t" }, 199 { "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME, 200 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 201 { "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0, 202 &dt_idops_func, "void(int)" }, 203 { "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN, 204 DT_VERS_1_1, &dt_idops_func, "void(@, ...)" }, 205 { "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN, 206 DT_VERS_1_0, &dt_idops_func, "void()" }, 207 { "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 208 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 209 { "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR, 210 DT_ATTR_EVOLCMN, DT_VERS_1_0, 211 &dt_idops_func, "genunix`major_t(genunix`dev_t)" }, 212 { "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR, 213 DT_ATTR_EVOLCMN, DT_VERS_1_0, 214 &dt_idops_func, "genunix`minor_t(genunix`dev_t)" }, 215 { "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0, 216 &dt_idops_type, "uint_t" }, 217 { "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 218 &dt_idops_func, "int(const char *, const char *, [int])" }, 219 { "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0, 220 &dt_idops_type, "uint_t" }, 221 { "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 222 &dt_idops_func, "stack(...)" }, 223 { "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0, 224 &dt_idops_func, "string(int64_t)" }, 225 { "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE, 226 DT_ATTR_STABCMN, DT_VERS_1_0, 227 &dt_idops_func, "void(@, int32_t, int32_t, ...)" }, 228 { "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0, 229 &dt_idops_func, "void(@)" }, 230 { "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0, 231 &dt_idops_func, "void(@)" }, 232 { "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN, 233 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 234 { "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE, 235 DT_ATTR_STABCMN, DT_VERS_1_0, 236 &dt_idops_func, "size_t(mblk_t *)" }, 237 { "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE, 238 DT_ATTR_STABCMN, DT_VERS_1_0, 239 &dt_idops_func, "size_t(mblk_t *)" }, 240 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 241 DT_ATTR_EVOLCMN, DT_VERS_1_0, 242 &dt_idops_func, "int(genunix`kmutex_t *)" }, 243 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 244 DT_ATTR_EVOLCMN, DT_VERS_1_0, 245 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" }, 246 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 247 DT_ATTR_EVOLCMN, DT_VERS_1_0, 248 &dt_idops_func, "int(genunix`kmutex_t *)" }, 249 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 250 DT_ATTR_EVOLCMN, DT_VERS_1_0, 251 &dt_idops_func, "int(genunix`kmutex_t *)" }, 252 { "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN, 253 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 254 { "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0, 255 &dt_idops_func, "void()" }, 256 { "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0, 257 &dt_idops_type, "pid_t" }, 258 { "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0, 259 &dt_idops_func, "void(@, ...)" }, 260 { "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0, 261 &dt_idops_func, "void(@, ...)" }, 262 { "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC, 263 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 264 { "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD, 265 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 266 { "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME, 267 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 268 { "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV, 269 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 270 { "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF, 271 DT_ATTR_STABCMN, DT_VERS_1_0, 272 &dt_idops_func, "int(pid_t)" }, 273 { "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE, 274 DT_ATTR_STABCMN, DT_VERS_1_0, 275 &dt_idops_func, "void(@, ...)" }, 276 { "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0, 277 &dt_idops_func, "void(int)" }, 278 { "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0, 279 &dt_idops_func, "int()" }, 280 { "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 281 &dt_idops_func, "int(const char *, const char *, [int])" }, 282 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 283 DT_ATTR_EVOLCMN, DT_VERS_1_0, 284 &dt_idops_func, "int(genunix`krwlock_t *)" }, 285 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 286 DT_ATTR_EVOLCMN, DT_VERS_1_0, 287 &dt_idops_func, "int(genunix`krwlock_t *)" }, 288 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 289 DT_ATTR_EVOLCMN, DT_VERS_1_0, 290 &dt_idops_func, "int(genunix`krwlock_t *)" }, 291 { "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 292 &dt_idops_type, "void" }, 293 { "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN, 294 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" }, 295 { "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE, 296 DT_ATTR_STABCMN, DT_VERS_1_0, 297 &dt_idops_func, "void(int)" }, 298 { "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION, 299 DT_ATTR_STABCMN, DT_VERS_1_0, 300 &dt_idops_func, "int()" }, 301 { "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0, 302 &dt_idops_func, "stack(...)" }, 303 { "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH, 304 DT_ATTR_STABCMN, DT_VERS_1_0, 305 &dt_idops_type, "uint32_t" }, 306 { "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0, 307 &dt_idops_func, "void()" }, 308 { "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 309 &dt_idops_func, "string(const char *, char)" }, 310 { "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0, 311 &dt_idops_func, "size_t(const char *)" }, 312 { "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0, 313 &dt_idops_func, "string(const char *, const char *)" }, 314 { "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 315 &dt_idops_func, "string(const char *, char)" }, 316 { "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 317 &dt_idops_func, "string(const char *, const char *)" }, 318 { "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1, 319 &dt_idops_func, "string(const char *, const char *)" }, 320 { "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 321 &dt_idops_func, "string(const char *, int, [int])" }, 322 { "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0, 323 &dt_idops_func, "void(@)" }, 324 { "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 325 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 326 { "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0, 327 &dt_idops_func, "void(@, ...)" }, 328 { "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 329 &dt_idops_type, "void" }, 330 { "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0, 331 &dt_idops_type, "id_t" }, 332 { "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP, 333 DT_ATTR_STABCMN, DT_VERS_1_0, 334 &dt_idops_type, "uint64_t" }, 335 { "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0, 336 &dt_idops_func, "void(@)" }, 337 { "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM, 338 DT_ATTR_STABCMN, DT_VERS_1_0, 339 &dt_idops_func, "void(@, size_t)" }, 340 { "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN, 341 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 342 { "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN, 343 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 344 { "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN, 345 DT_VERS_1_2, &dt_idops_type, "uint64_t" }, 346 { "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 347 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 348 { "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN, 349 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 350 { "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0, 351 &dt_idops_regs, NULL }, 352 { "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 353 &dt_idops_func, "stack(...)" }, 354 { "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH, 355 DT_ATTR_STABCMN, DT_VERS_1_2, 356 &dt_idops_type, "uint32_t" }, 357 { "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 358 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 359 { "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP, 360 DT_ATTR_STABCMN, DT_VERS_1_0, 361 &dt_idops_type, "uint64_t" }, 362 { "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP, 363 DT_ATTR_STABCMN, DT_VERS_1_0, 364 &dt_idops_type, "int64_t" }, 365 { "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME, 366 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 367 { NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL } 368 }; 369 370 /* 371 * Tables of ILP32 intrinsic integer and floating-point type templates to use 372 * to populate the dynamic "C" CTF type container. 373 */ 374 static const dt_intrinsic_t _dtrace_intrinsics_32[] = { 375 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 376 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 377 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 378 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 379 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 380 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 381 { "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 382 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 383 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 384 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 385 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 386 { "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 387 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 388 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 389 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 390 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 391 { "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER }, 392 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 393 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 394 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 395 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 396 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 397 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 398 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 399 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 400 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 401 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 402 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 403 { NULL, { 0, 0, 0 }, 0 } 404 }; 405 406 /* 407 * Tables of LP64 intrinsic integer and floating-point type templates to use 408 * to populate the dynamic "C" CTF type container. 409 */ 410 static const dt_intrinsic_t _dtrace_intrinsics_64[] = { 411 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 412 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 413 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 414 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 415 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 416 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 417 { "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 418 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 419 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 420 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 421 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 422 { "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 423 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 424 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 425 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 426 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 427 { "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER }, 428 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 429 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 430 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 431 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 432 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 433 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 434 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 435 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 436 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 437 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 438 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 439 { NULL, { 0, 0, 0 }, 0 } 440 }; 441 442 /* 443 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container. 444 * These aliases ensure that D definitions can use typical <sys/types.h> names. 445 */ 446 static const dt_typedef_t _dtrace_typedefs_32[] = { 447 { "char", "int8_t" }, 448 { "short", "int16_t" }, 449 { "int", "int32_t" }, 450 { "long long", "int64_t" }, 451 { "int", "intptr_t" }, 452 { "int", "ssize_t" }, 453 { "unsigned char", "uint8_t" }, 454 { "unsigned short", "uint16_t" }, 455 { "unsigned", "uint32_t" }, 456 { "unsigned long long", "uint64_t" }, 457 { "unsigned char", "uchar_t" }, 458 { "unsigned short", "ushort_t" }, 459 { "unsigned", "uint_t" }, 460 { "unsigned long", "ulong_t" }, 461 { "unsigned long long", "u_longlong_t" }, 462 { "int", "ptrdiff_t" }, 463 { "unsigned", "uintptr_t" }, 464 { "unsigned", "size_t" }, 465 { "long", "id_t" }, 466 { "long", "pid_t" }, 467 { NULL, NULL } 468 }; 469 470 /* 471 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container. 472 * These aliases ensure that D definitions can use typical <sys/types.h> names. 473 */ 474 static const dt_typedef_t _dtrace_typedefs_64[] = { 475 { "char", "int8_t" }, 476 { "short", "int16_t" }, 477 { "int", "int32_t" }, 478 { "long", "int64_t" }, 479 { "long", "intptr_t" }, 480 { "long", "ssize_t" }, 481 { "unsigned char", "uint8_t" }, 482 { "unsigned short", "uint16_t" }, 483 { "unsigned", "uint32_t" }, 484 { "unsigned long", "uint64_t" }, 485 { "unsigned char", "uchar_t" }, 486 { "unsigned short", "ushort_t" }, 487 { "unsigned", "uint_t" }, 488 { "unsigned long", "ulong_t" }, 489 { "unsigned long long", "u_longlong_t" }, 490 { "long", "ptrdiff_t" }, 491 { "unsigned long", "uintptr_t" }, 492 { "unsigned long", "size_t" }, 493 { "int", "id_t" }, 494 { "int", "pid_t" }, 495 { NULL, NULL } 496 }; 497 498 /* 499 * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[] 500 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 501 */ 502 static const dt_intdesc_t _dtrace_ints_32[] = { 503 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 504 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 505 { "long", NULL, CTF_ERR, 0x7fffffffULL }, 506 { "unsigned long", NULL, CTF_ERR, 0xffffffffULL }, 507 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 508 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 509 }; 510 511 /* 512 * Tables of LP64 integer type templates used to populate the dtp->dt_ints[] 513 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 514 */ 515 static const dt_intdesc_t _dtrace_ints_64[] = { 516 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 517 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 518 { "long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 519 { "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL }, 520 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 521 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 522 }; 523 524 /* 525 * Table of macro variable templates used to populate the macro identifier hash 526 * when a new dtrace client open occurs. Values are set by dtrace_update(). 527 */ 528 static const dt_ident_t _dtrace_macros[] = { 529 { "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 530 { "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 531 { "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 532 { "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 533 { "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 534 { "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 535 { "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 536 { "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 537 { "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 538 { "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 539 { "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 540 { NULL, 0, 0, 0, { 0, 0, 0 }, 0 } 541 }; 542 543 /* 544 * Hard-wired definition string to be compiled and cached every time a new 545 * DTrace library handle is initialized. This string should only be used to 546 * contain definitions that should be present regardless of DTRACE_O_NOLIBS. 547 */ 548 static const char _dtrace_hardwire[] = "\ 549 inline long NULL = 0; \n\ 550 #pragma D binding \"1.0\" NULL\n\ 551 "; 552 553 /* 554 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV. 555 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel. 556 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are 557 * relying on the fact that when running dtrace(1M), isaexec will invoke the 558 * binary with the same bitness as the kernel, which is what we want by default 559 * when generating our DIF. The user can override the choice using oflags. 560 */ 561 static const dtrace_conf_t _dtrace_conf = { 562 DIF_VERSION, /* dtc_difversion */ 563 DIF_DIR_NREGS, /* dtc_difintregs */ 564 DIF_DTR_NREGS, /* dtc_diftupregs */ 565 CTF_MODEL_NATIVE /* dtc_ctfmodel */ 566 }; 567 568 const dtrace_attribute_t _dtrace_maxattr = { 569 DTRACE_STABILITY_MAX, 570 DTRACE_STABILITY_MAX, 571 DTRACE_CLASS_MAX 572 }; 573 574 const dtrace_attribute_t _dtrace_defattr = { 575 DTRACE_STABILITY_STABLE, 576 DTRACE_STABILITY_STABLE, 577 DTRACE_CLASS_COMMON 578 }; 579 580 const dtrace_attribute_t _dtrace_symattr = { 581 DTRACE_STABILITY_PRIVATE, 582 DTRACE_STABILITY_PRIVATE, 583 DTRACE_CLASS_UNKNOWN 584 }; 585 586 const dtrace_attribute_t _dtrace_typattr = { 587 DTRACE_STABILITY_PRIVATE, 588 DTRACE_STABILITY_PRIVATE, 589 DTRACE_CLASS_UNKNOWN 590 }; 591 592 const dtrace_attribute_t _dtrace_prvattr = { 593 DTRACE_STABILITY_PRIVATE, 594 DTRACE_STABILITY_PRIVATE, 595 DTRACE_CLASS_UNKNOWN 596 }; 597 598 const dtrace_pattr_t _dtrace_prvdesc = { 599 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 600 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 601 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 602 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 603 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 604 }; 605 606 const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */ 607 const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */ 608 609 const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */ 610 const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */ 611 612 int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */ 613 int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */ 614 uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */ 615 uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */ 616 uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */ 617 uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */ 618 size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */ 619 int _dtrace_argmax = 32; /* default maximum number of probe arguments */ 620 621 int _dtrace_debug = 0; /* debug messages enabled (off) */ 622 const char *const _dtrace_version = DT_VERS_STRING; /* API version string */ 623 int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */ 624 625 typedef struct dt_fdlist { 626 int *df_fds; /* array of provider driver file descriptors */ 627 uint_t df_ents; /* number of valid elements in df_fds[] */ 628 uint_t df_size; /* size of df_fds[] */ 629 } dt_fdlist_t; 630 631 #pragma init(_dtrace_init) 632 void 633 _dtrace_init(void) 634 { 635 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL; 636 637 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) { 638 if (rd_init(_dtrace_rdvers) == RD_OK) 639 break; 640 } 641 } 642 643 static dtrace_hdl_t * 644 set_open_errno(dtrace_hdl_t *dtp, int *errp, int err) 645 { 646 if (dtp != NULL) 647 dtrace_close(dtp); 648 if (errp != NULL) 649 *errp = err; 650 return (NULL); 651 } 652 653 static void 654 dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp) 655 { 656 dt_provmod_t *prov; 657 char path[PATH_MAX]; 658 struct dirent *dp, *ep; 659 DIR *dirp; 660 int fd; 661 662 if ((dirp = opendir(_dtrace_provdir)) == NULL) 663 return; /* failed to open directory; just skip it */ 664 665 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1); 666 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1); 667 668 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) { 669 if (dp->d_name[0] == '.') 670 continue; /* skip "." and ".." */ 671 672 if (dfp->df_ents == dfp->df_size) { 673 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 674 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 675 676 if (fds == NULL) 677 break; /* skip the rest of this directory */ 678 679 dfp->df_fds = fds; 680 dfp->df_size = size; 681 } 682 683 (void) snprintf(path, sizeof (path), "%s/%s", 684 _dtrace_provdir, dp->d_name); 685 686 if ((fd = open(path, O_RDONLY)) == -1) 687 continue; /* failed to open driver; just skip it */ 688 689 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 690 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) { 691 free(prov); 692 (void) close(fd); 693 break; 694 } 695 696 (void) strcpy(prov->dp_name, dp->d_name); 697 prov->dp_next = *provmod; 698 *provmod = prov; 699 700 dt_dprintf("opened provider %s\n", dp->d_name); 701 dfp->df_fds[dfp->df_ents++] = fd; 702 } 703 704 (void) closedir(dirp); 705 } 706 707 static void 708 dt_provmod_destroy(dt_provmod_t **provmod) 709 { 710 dt_provmod_t *next, *current; 711 712 for (current = *provmod; current != NULL; current = next) { 713 next = current->dp_next; 714 free(current->dp_name); 715 free(current); 716 } 717 718 *provmod = NULL; 719 } 720 721 static const char * 722 dt_get_sysinfo(int cmd, char *buf, size_t len) 723 { 724 ssize_t rv = sysinfo(cmd, buf, len); 725 char *p = buf; 726 727 if (rv < 0 || rv > len) 728 (void) snprintf(buf, len, "%s", "Unknown"); 729 730 while ((p = strchr(p, '.')) != NULL) 731 *p++ = '_'; 732 733 return (buf); 734 } 735 736 static dtrace_hdl_t * 737 dt_vopen(int version, int flags, int *errp, 738 const dtrace_vector_t *vector, void *arg) 739 { 740 dtrace_hdl_t *dtp = NULL; 741 int dtfd = -1, ftfd = -1, fterr = 0; 742 dtrace_prog_t *pgp; 743 dt_module_t *dmp; 744 dt_provmod_t *provmod = NULL; 745 int i, err; 746 struct rlimit rl; 747 748 const dt_intrinsic_t *dinp; 749 const dt_typedef_t *dtyp; 750 const dt_ident_t *idp; 751 752 dtrace_typeinfo_t dtt; 753 ctf_funcinfo_t ctc; 754 ctf_arinfo_t ctr; 755 756 dt_fdlist_t df = { NULL, 0, 0 }; 757 758 char isadef[32], utsdef[32]; 759 char s1[64], s2[64]; 760 761 if (version <= 0) 762 return (set_open_errno(dtp, errp, EINVAL)); 763 764 if (version > DTRACE_VERSION) 765 return (set_open_errno(dtp, errp, EDT_VERSION)); 766 767 if (version < DTRACE_VERSION) { 768 /* 769 * Currently, increasing the library version number is used to 770 * denote a binary incompatible change. That is, a consumer 771 * of the library cannot run on a version of the library with 772 * a higher DTRACE_VERSION number than the consumer compiled 773 * against. Once the library API has been committed to, 774 * backwards binary compatibility will be required; at that 775 * time, this check should change to return EDT_OVERSION only 776 * if the specified version number is less than the version 777 * number at the time of interface commitment. 778 */ 779 return (set_open_errno(dtp, errp, EDT_OVERSION)); 780 } 781 782 if (flags & ~DTRACE_O_MASK) 783 return (set_open_errno(dtp, errp, EINVAL)); 784 785 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32)) 786 return (set_open_errno(dtp, errp, EINVAL)); 787 788 if (vector == NULL && arg != NULL) 789 return (set_open_errno(dtp, errp, EINVAL)); 790 791 if (elf_version(EV_CURRENT) == EV_NONE) 792 return (set_open_errno(dtp, errp, EDT_ELFVERSION)); 793 794 if (vector != NULL || (flags & DTRACE_O_NODEV)) 795 goto alloc; /* do not attempt to open dtrace device */ 796 797 /* 798 * Before we get going, crank our limit on file descriptors up to the 799 * hard limit. This is to allow for the fact that libproc keeps file 800 * descriptors to objects open for the lifetime of the proc handle; 801 * without raising our hard limit, we would have an acceptably small 802 * bound on the number of processes that we could concurrently 803 * instrument with the pid provider. 804 */ 805 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) { 806 rl.rlim_cur = rl.rlim_max; 807 (void) setrlimit(RLIMIT_NOFILE, &rl); 808 } 809 810 /* 811 * Get the device path of each of the providers. We hold them open 812 * in the df.df_fds list until we open the DTrace driver itself, 813 * allowing us to see all of the probes provided on this system. Once 814 * we have the DTrace driver open, we can safely close all the providers 815 * now that they have registered with the framework. 816 */ 817 dt_provmod_open(&provmod, &df); 818 819 dtfd = open("/dev/dtrace/dtrace", O_RDWR); 820 err = errno; /* save errno from opening dtfd */ 821 822 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR); 823 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */ 824 825 while (df.df_ents-- != 0) 826 (void) close(df.df_fds[df.df_ents]); 827 828 free(df.df_fds); 829 830 /* 831 * If we failed to open the dtrace device, fail dtrace_open(). 832 * We convert some kernel errnos to custom libdtrace errnos to 833 * improve the resulting message from the usual strerror(). 834 */ 835 if (dtfd == -1) { 836 dt_provmod_destroy(&provmod); 837 switch (err) { 838 case ENOENT: 839 err = EDT_NOENT; 840 break; 841 case EBUSY: 842 err = EDT_BUSY; 843 break; 844 case EACCES: 845 err = EDT_ACCESS; 846 break; 847 } 848 return (set_open_errno(dtp, errp, err)); 849 } 850 851 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC); 852 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC); 853 854 alloc: 855 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL) 856 return (set_open_errno(dtp, errp, EDT_NOMEM)); 857 858 bzero(dtp, sizeof (dtrace_hdl_t)); 859 dtp->dt_oflags = flags; 860 dtp->dt_prcmode = DT_PROC_STOP_PREINIT; 861 dtp->dt_linkmode = DT_LINK_KERNEL; 862 dtp->dt_linktype = DT_LTYP_ELF; 863 dtp->dt_xlatemode = DT_XL_STATIC; 864 dtp->dt_stdcmode = DT_STDC_XA; 865 dtp->dt_version = version; 866 dtp->dt_fd = dtfd; 867 dtp->dt_ftfd = ftfd; 868 dtp->dt_fterr = fterr; 869 dtp->dt_cdefs_fd = -1; 870 dtp->dt_ddefs_fd = -1; 871 dtp->dt_stdout_fd = -1; 872 dtp->dt_modbuckets = _dtrace_strbuckets; 873 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *)); 874 dtp->dt_provbuckets = _dtrace_strbuckets; 875 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *)); 876 dt_proc_hash_create(dtp); 877 dtp->dt_vmax = DT_VERS_LATEST; 878 dtp->dt_cpp_path = strdup(_dtrace_defcpp); 879 dtp->dt_cpp_argv = malloc(sizeof (char *)); 880 dtp->dt_cpp_argc = 1; 881 dtp->dt_cpp_args = 1; 882 dtp->dt_ld_path = strdup(_dtrace_defld); 883 dtp->dt_provmod = provmod; 884 dtp->dt_vector = vector; 885 dtp->dt_varg = arg; 886 dt_dof_init(dtp); 887 (void) uname(&dtp->dt_uts); 888 889 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL || 890 dtp->dt_procs == NULL || dtp->dt_ld_path == NULL || 891 dtp->dt_cpp_path == NULL || dtp->dt_cpp_argv == NULL) 892 return (set_open_errno(dtp, errp, EDT_NOMEM)); 893 894 for (i = 0; i < DTRACEOPT_MAX; i++) 895 dtp->dt_options[i] = DTRACEOPT_UNSET; 896 897 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path); 898 899 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u", 900 (uint_t)(sizeof (void *) * NBBY)); 901 902 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s", 903 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)), 904 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2))); 905 906 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL || 907 dt_cpp_add_arg(dtp, "-D__unix") == NULL || 908 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL || 909 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL || 910 dt_cpp_add_arg(dtp, isadef) == NULL || 911 dt_cpp_add_arg(dtp, utsdef) == NULL) 912 return (set_open_errno(dtp, errp, EDT_NOMEM)); 913 914 if (flags & DTRACE_O_NODEV) 915 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf)); 916 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0) 917 return (set_open_errno(dtp, errp, errno)); 918 919 if (flags & DTRACE_O_LP64) 920 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64; 921 else if (flags & DTRACE_O_ILP32) 922 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32; 923 924 #ifdef __sparc 925 /* 926 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h> 927 * and __sparcv9 is defined if we are doing a 64-bit compile. 928 */ 929 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL) 930 return (set_open_errno(dtp, errp, EDT_NOMEM)); 931 932 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 && 933 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL) 934 return (set_open_errno(dtp, errp, EDT_NOMEM)); 935 #endif 936 937 #ifdef __x86 938 /* 939 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit 940 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC, 941 * they are defined exclusive of one another (see PSARC 2004/619). 942 */ 943 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 944 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL) 945 return (set_open_errno(dtp, errp, EDT_NOMEM)); 946 } else { 947 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL) 948 return (set_open_errno(dtp, errp, EDT_NOMEM)); 949 } 950 #endif 951 952 if (dtp->dt_conf.dtc_difversion < DIF_VERSION) 953 return (set_open_errno(dtp, errp, EDT_DIFVERS)); 954 955 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) 956 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32)); 957 else 958 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64)); 959 960 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX); 961 dtp->dt_aggs = dt_idhash_create("aggregation", NULL, 962 DTRACE_AGGVARIDNONE + 1, UINT_MAX); 963 964 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals, 965 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 966 967 dtp->dt_tls = dt_idhash_create("thread local", NULL, 968 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 969 970 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL || 971 dtp->dt_globals == NULL || dtp->dt_tls == NULL) 972 return (set_open_errno(dtp, errp, EDT_NOMEM)); 973 974 /* 975 * Populate the dt_macros identifier hash table by hand: we can't use 976 * the dt_idhash_populate() mechanism because we're not yet compiling 977 * and dtrace_update() needs to immediately reference these idents. 978 */ 979 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) { 980 if (dt_idhash_insert(dtp->dt_macros, idp->di_name, 981 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr, 982 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw, 983 idp->di_iarg, 0) == NULL) 984 return (set_open_errno(dtp, errp, EDT_NOMEM)); 985 } 986 987 /* 988 * Update the module list using /system/object and load the values for 989 * the macro variable definitions according to the current process. 990 */ 991 dtrace_update(dtp); 992 993 /* 994 * Select the intrinsics and typedefs we want based on the data model. 995 * The intrinsics are under "C". The typedefs are added under "D". 996 */ 997 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) { 998 dinp = _dtrace_intrinsics_32; 999 dtyp = _dtrace_typedefs_32; 1000 } else { 1001 dinp = _dtrace_intrinsics_64; 1002 dtyp = _dtrace_typedefs_64; 1003 } 1004 1005 /* 1006 * Create a dynamic CTF container under the "C" scope for intrinsic 1007 * types and types defined in ANSI-C header files that are included. 1008 */ 1009 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL) 1010 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1011 1012 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1013 return (set_open_errno(dtp, errp, EDT_CTF)); 1014 1015 dt_dprintf("created CTF container for %s (%p)\n", 1016 dmp->dm_name, (void *)dmp->dm_ctfp); 1017 1018 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1019 ctf_setspecific(dmp->dm_ctfp, dmp); 1020 1021 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1022 dmp->dm_modid = -1; /* no module ID */ 1023 1024 /* 1025 * Fill the dynamic "C" CTF container with all of the intrinsic 1026 * integer and floating-point types appropriate for this data model. 1027 */ 1028 for (; dinp->din_name != NULL; dinp++) { 1029 if (dinp->din_kind == CTF_K_INTEGER) { 1030 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT, 1031 dinp->din_name, &dinp->din_data); 1032 } else { 1033 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT, 1034 dinp->din_name, &dinp->din_data); 1035 } 1036 1037 if (err == CTF_ERR) { 1038 dt_dprintf("failed to add %s to C container: %s\n", 1039 dinp->din_name, ctf_errmsg( 1040 ctf_errno(dmp->dm_ctfp))); 1041 return (set_open_errno(dtp, errp, EDT_CTF)); 1042 } 1043 } 1044 1045 if (ctf_update(dmp->dm_ctfp) != 0) { 1046 dt_dprintf("failed to update C container: %s\n", 1047 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1048 return (set_open_errno(dtp, errp, EDT_CTF)); 1049 } 1050 1051 /* 1052 * Add intrinsic pointer types that are needed to initialize printf 1053 * format dictionary types (see table in dt_printf.c). 1054 */ 1055 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1056 ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1057 1058 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1059 ctf_lookup_by_name(dmp->dm_ctfp, "char")); 1060 1061 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1062 ctf_lookup_by_name(dmp->dm_ctfp, "int")); 1063 1064 if (ctf_update(dmp->dm_ctfp) != 0) { 1065 dt_dprintf("failed to update C container: %s\n", 1066 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1067 return (set_open_errno(dtp, errp, EDT_CTF)); 1068 } 1069 1070 /* 1071 * Create a dynamic CTF container under the "D" scope for types that 1072 * are defined by the D program itself or on-the-fly by the D compiler. 1073 * The "D" CTF container is a child of the "C" CTF container. 1074 */ 1075 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL) 1076 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1077 1078 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1079 return (set_open_errno(dtp, errp, EDT_CTF)); 1080 1081 dt_dprintf("created CTF container for %s (%p)\n", 1082 dmp->dm_name, (void *)dmp->dm_ctfp); 1083 1084 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1085 ctf_setspecific(dmp->dm_ctfp, dmp); 1086 1087 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1088 dmp->dm_modid = -1; /* no module ID */ 1089 1090 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) { 1091 dt_dprintf("failed to import D parent container: %s\n", 1092 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1093 return (set_open_errno(dtp, errp, EDT_CTF)); 1094 } 1095 1096 /* 1097 * Fill the dynamic "D" CTF container with all of the built-in typedefs 1098 * that we need to use for our D variable and function definitions. 1099 * This ensures that basic inttypes.h names are always available to us. 1100 */ 1101 for (; dtyp->dty_src != NULL; dtyp++) { 1102 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1103 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp, 1104 dtyp->dty_src)) == CTF_ERR) { 1105 dt_dprintf("failed to add typedef %s %s to D " 1106 "container: %s", dtyp->dty_src, dtyp->dty_dst, 1107 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1108 return (set_open_errno(dtp, errp, EDT_CTF)); 1109 } 1110 } 1111 1112 /* 1113 * Insert a CTF ID corresponding to a pointer to a type of kind 1114 * CTF_K_FUNCTION we can use in the compiler for function pointers. 1115 * CTF treats all function pointers as "int (*)()" so we only need one. 1116 */ 1117 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int"); 1118 ctc.ctc_argc = 0; 1119 ctc.ctc_flags = 0; 1120 1121 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp, 1122 CTF_ADD_ROOT, &ctc, NULL); 1123 1124 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp, 1125 CTF_ADD_ROOT, dtp->dt_type_func); 1126 1127 /* 1128 * We also insert CTF definitions for the special D intrinsic types 1129 * string and <DYN> into the D container. The string type is added 1130 * as a typedef of char[n]. The <DYN> type is an alias for void. 1131 * We compare types to these special CTF ids throughout the compiler. 1132 */ 1133 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char"); 1134 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long"); 1135 ctr.ctr_nelems = _dtrace_strsize; 1136 1137 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1138 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr)); 1139 1140 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1141 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1142 1143 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1144 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1145 1146 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1147 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1148 1149 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1150 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1151 1152 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR || 1153 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR || 1154 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR || 1155 dtp->dt_type_usymaddr == CTF_ERR) { 1156 dt_dprintf("failed to add intrinsic to D container: %s\n", 1157 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1158 return (set_open_errno(dtp, errp, EDT_CTF)); 1159 } 1160 1161 if (ctf_update(dmp->dm_ctfp) != 0) { 1162 dt_dprintf("failed update D container: %s\n", 1163 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1164 return (set_open_errno(dtp, errp, EDT_CTF)); 1165 } 1166 1167 /* 1168 * Initialize the integer description table used to convert integer 1169 * constants to the appropriate types. Refer to the comments above 1170 * dt_node_int() for a complete description of how this table is used. 1171 */ 1172 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) { 1173 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY, 1174 dtp->dt_ints[i].did_name, &dtt) != 0) { 1175 dt_dprintf("failed to lookup integer type %s: %s\n", 1176 dtp->dt_ints[i].did_name, 1177 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1178 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1179 } 1180 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp; 1181 dtp->dt_ints[i].did_type = dtt.dtt_type; 1182 } 1183 1184 /* 1185 * Now that we've created the "C" and "D" containers, move them to the 1186 * start of the module list so that these types and symbols are found 1187 * first (for stability) when iterating through the module list. 1188 */ 1189 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs); 1190 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs); 1191 1192 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs); 1193 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs); 1194 1195 if (dt_pfdict_create(dtp) == -1) 1196 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1197 1198 /* 1199 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default 1200 * because without /dev/dtrace open, we will not be able to load the 1201 * names and attributes of any providers or probes from the kernel. 1202 */ 1203 if (flags & DTRACE_O_NODEV) 1204 dtp->dt_cflags |= DTRACE_C_ZDEFS; 1205 1206 /* 1207 * Load hard-wired inlines into the definition cache by calling the 1208 * compiler on the raw definition string defined above. 1209 */ 1210 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire, 1211 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) { 1212 dt_dprintf("failed to load hard-wired definitions: %s\n", 1213 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1214 return (set_open_errno(dtp, errp, EDT_HARDWIRE)); 1215 } 1216 1217 dt_program_destroy(dtp, pgp); 1218 1219 /* 1220 * Set up the default DTrace library path. Once set, the next call to 1221 * dt_compile() will compile all the libraries. We intentionally defer 1222 * library processing to improve overhead for clients that don't ever 1223 * compile, and to provide better error reporting (because the full 1224 * reporting of compiler errors requires dtrace_open() to succeed). 1225 */ 1226 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0) 1227 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1228 1229 return (dtp); 1230 } 1231 1232 dtrace_hdl_t * 1233 dtrace_open(int version, int flags, int *errp) 1234 { 1235 return (dt_vopen(version, flags, errp, NULL, NULL)); 1236 } 1237 1238 dtrace_hdl_t * 1239 dtrace_vopen(int version, int flags, int *errp, 1240 const dtrace_vector_t *vector, void *arg) 1241 { 1242 return (dt_vopen(version, flags, errp, vector, arg)); 1243 } 1244 1245 void 1246 dtrace_close(dtrace_hdl_t *dtp) 1247 { 1248 dt_ident_t *idp, *ndp; 1249 dt_module_t *dmp; 1250 dt_provider_t *pvp; 1251 dtrace_prog_t *pgp; 1252 dt_xlator_t *dxp; 1253 dt_dirpath_t *dirp; 1254 int i; 1255 1256 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL) 1257 dt_program_destroy(dtp, pgp); 1258 1259 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL) 1260 dt_xlator_destroy(dtp, dxp); 1261 1262 dt_free(dtp, dtp->dt_xlatormap); 1263 1264 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) { 1265 ndp = idp->di_next; 1266 dt_ident_destroy(idp); 1267 } 1268 1269 if (dtp->dt_macros != NULL) 1270 dt_idhash_destroy(dtp->dt_macros); 1271 if (dtp->dt_aggs != NULL) 1272 dt_idhash_destroy(dtp->dt_aggs); 1273 if (dtp->dt_globals != NULL) 1274 dt_idhash_destroy(dtp->dt_globals); 1275 if (dtp->dt_tls != NULL) 1276 dt_idhash_destroy(dtp->dt_tls); 1277 1278 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL) 1279 dt_module_destroy(dtp, dmp); 1280 1281 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL) 1282 dt_provider_destroy(dtp, pvp); 1283 1284 if (dtp->dt_procs != NULL) 1285 dt_proc_hash_destroy(dtp); 1286 1287 if (dtp->dt_fd != -1) 1288 (void) close(dtp->dt_fd); 1289 if (dtp->dt_ftfd != -1) 1290 (void) close(dtp->dt_ftfd); 1291 if (dtp->dt_cdefs_fd != -1) 1292 (void) close(dtp->dt_cdefs_fd); 1293 if (dtp->dt_ddefs_fd != -1) 1294 (void) close(dtp->dt_ddefs_fd); 1295 if (dtp->dt_stdout_fd != -1) 1296 (void) close(dtp->dt_stdout_fd); 1297 1298 dt_epid_destroy(dtp); 1299 dt_aggid_destroy(dtp); 1300 dt_format_destroy(dtp); 1301 dt_buffered_destroy(dtp); 1302 dt_aggregate_destroy(dtp); 1303 free(dtp->dt_buf.dtbd_data); 1304 dt_pfdict_destroy(dtp); 1305 dt_provmod_destroy(&dtp->dt_provmod); 1306 dt_dof_fini(dtp); 1307 1308 for (i = 1; i < dtp->dt_cpp_argc; i++) 1309 free(dtp->dt_cpp_argv[i]); 1310 1311 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) { 1312 dt_list_delete(&dtp->dt_lib_path, dirp); 1313 free(dirp->dir_path); 1314 free(dirp); 1315 } 1316 1317 free(dtp->dt_cpp_argv); 1318 free(dtp->dt_cpp_path); 1319 free(dtp->dt_ld_path); 1320 1321 free(dtp->dt_mods); 1322 free(dtp->dt_provs); 1323 free(dtp); 1324 } 1325 1326 int 1327 dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods) 1328 { 1329 dt_provmod_t *prov; 1330 int i = 0; 1331 1332 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) { 1333 if (i < nmods) 1334 mods[i] = prov->dp_name; 1335 } 1336 1337 return (i); 1338 } 1339 1340 int 1341 dtrace_ctlfd(dtrace_hdl_t *dtp) 1342 { 1343 return (dtp->dt_fd); 1344 } 1345