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