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_1_3 DT_VERSION_NUMBER(1, 3, 0) 102 #define DT_VERS_1_4 DT_VERSION_NUMBER(1, 4, 0) 103 #define DT_VERS_LATEST DT_VERS_1_4 104 #define DT_VERS_STRING "Sun D 1.4" 105 106 const dt_version_t _dtrace_versions[] = { 107 DT_VERS_1_0, /* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */ 108 DT_VERS_1_1, /* D API 1.1.0 Solaris Express 6/05 */ 109 DT_VERS_1_2, /* D API 1.2.0 Solaris 10 Update 1 */ 110 DT_VERS_1_2_1, /* D API 1.2.1 Solaris Express 4/06 */ 111 DT_VERS_1_2_2, /* D API 1.2.2 Solaris Express 6/06 */ 112 DT_VERS_1_3, /* D API 1.3 Solaris Express 10/06 */ 113 DT_VERS_1_4, /* D API 1.4 Solaris Express 2/07 */ 114 0 115 }; 116 117 /* 118 * Table of global identifiers. This is used to populate the global identifier 119 * hash when a new dtrace client open occurs. For more info see dt_ident.h. 120 * The global identifiers that represent functions use the dt_idops_func ops 121 * and specify the private data pointer as a prototype string which is parsed 122 * when the identifier is first encountered. These prototypes look like ANSI 123 * C function prototypes except that the special symbol "@" can be used as a 124 * wildcard to represent a single parameter of any type (i.e. any dt_node_t). 125 * The standard "..." notation can also be used to represent varargs. An empty 126 * parameter list is taken to mean void (that is, no arguments are permitted). 127 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional 128 * argument. 129 */ 130 static const dt_ident_t _dtrace_globals[] = { 131 { "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0, 132 &dt_idops_func, "void *(size_t)" }, 133 { "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0, 134 &dt_idops_type, "int64_t" }, 135 { "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0, 136 &dt_idops_type, "int64_t" }, 137 { "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0, 138 &dt_idops_type, "int64_t" }, 139 { "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0, 140 &dt_idops_type, "int64_t" }, 141 { "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0, 142 &dt_idops_type, "int64_t" }, 143 { "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0, 144 &dt_idops_type, "int64_t" }, 145 { "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0, 146 &dt_idops_type, "int64_t" }, 147 { "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0, 148 &dt_idops_type, "int64_t" }, 149 { "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0, 150 &dt_idops_type, "int64_t" }, 151 { "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0, 152 &dt_idops_type, "int64_t" }, 153 { "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0, 154 &dt_idops_args, NULL }, 155 { "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0, 156 &dt_idops_func, "void(@)" }, 157 { "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0, 158 &dt_idops_func, "string(const char *)" }, 159 { "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0, 160 &dt_idops_func, "void(void *, void *, size_t)" }, 161 { "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT, 162 DT_ATTR_STABCMN, DT_VERS_1_0, 163 &dt_idops_func, "void()" }, 164 { "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0, 165 &dt_idops_type, "uintptr_t" }, 166 { "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0, 167 &dt_idops_func, "void(int)" }, 168 { "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN, 169 DT_VERS_1_0, &dt_idops_func, "string(const char *)" }, 170 { "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0, 171 &dt_idops_func, "void(...)" }, 172 { "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0, 173 &dt_idops_func, "void(int)" }, 174 { "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0, 175 &dt_idops_func, "void *(uintptr_t, size_t)" }, 176 { "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR, 177 DT_ATTR_STABCMN, DT_VERS_1_0, 178 &dt_idops_func, "string(uintptr_t, [size_t])" }, 179 { "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN, 180 DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" }, 181 { "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0, 182 &dt_idops_func, "void(void *, uintptr_t, size_t)" }, 183 { "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR, 184 DT_ATTR_STABCMN, DT_VERS_1_0, 185 &dt_idops_func, "void(char *, uintptr_t, size_t)" }, 186 { "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0, 187 &dt_idops_func, "void()" }, 188 { "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD, 189 { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE, 190 DTRACE_CLASS_COMMON }, DT_VERS_1_0, 191 &dt_idops_type, "genunix`kthread_t *" }, 192 { "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME, 193 DT_ATTR_EVOLCMN, DT_VERS_1_0, 194 &dt_idops_func, "string(void *, int64_t)" }, 195 { "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN, 196 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 197 { "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0, 198 &dt_idops_func, "string(const char *)" }, 199 { "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0, 200 &dt_idops_func, "void(int)" }, 201 { "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0, 202 &dt_idops_type, "uint_t" }, 203 { "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0, 204 &dt_idops_type, "int" }, 205 { "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME, 206 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 207 { "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0, 208 &dt_idops_func, "void(int)" }, 209 { "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN, 210 DT_VERS_1_1, &dt_idops_func, "void(@, ...)" }, 211 { "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN, 212 DT_VERS_1_0, &dt_idops_func, "void()" }, 213 { "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 214 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 215 { "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR, 216 DT_ATTR_EVOLCMN, DT_VERS_1_0, 217 &dt_idops_func, "genunix`major_t(genunix`dev_t)" }, 218 { "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR, 219 DT_ATTR_EVOLCMN, DT_VERS_1_0, 220 &dt_idops_func, "genunix`minor_t(genunix`dev_t)" }, 221 { "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 222 &dt_idops_func, "uint32_t(uint32_t)" }, 223 { "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 224 &dt_idops_func, "uint64_t(uint64_t)" }, 225 { "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 226 &dt_idops_func, "uint16_t(uint16_t)" }, 227 { "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0, 228 &dt_idops_type, "gid_t" }, 229 { "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0, 230 &dt_idops_type, "uint_t" }, 231 { "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 232 &dt_idops_func, "int(const char *, const char *, [int])" }, 233 { "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0, 234 &dt_idops_type, "uint_t" }, 235 { "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 236 &dt_idops_func, "stack(...)" }, 237 { "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0, 238 &dt_idops_func, "string(int64_t)" }, 239 { "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE, 240 DT_ATTR_STABCMN, DT_VERS_1_0, 241 &dt_idops_func, "void(@, int32_t, int32_t, ...)" }, 242 { "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0, 243 &dt_idops_func, "void(@)" }, 244 { "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0, 245 &dt_idops_func, "void(@)" }, 246 { "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN, 247 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 248 { "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE, 249 DT_ATTR_STABCMN, DT_VERS_1_0, 250 &dt_idops_func, "size_t(mblk_t *)" }, 251 { "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE, 252 DT_ATTR_STABCMN, DT_VERS_1_0, 253 &dt_idops_func, "size_t(mblk_t *)" }, 254 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 255 DT_ATTR_EVOLCMN, DT_VERS_1_0, 256 &dt_idops_func, "int(genunix`kmutex_t *)" }, 257 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 258 DT_ATTR_EVOLCMN, DT_VERS_1_0, 259 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" }, 260 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 261 DT_ATTR_EVOLCMN, DT_VERS_1_0, 262 &dt_idops_func, "int(genunix`kmutex_t *)" }, 263 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 264 DT_ATTR_EVOLCMN, DT_VERS_1_0, 265 &dt_idops_func, "int(genunix`kmutex_t *)" }, 266 { "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 267 &dt_idops_func, "uint32_t(uint32_t)" }, 268 { "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 269 &dt_idops_func, "uint64_t(uint64_t)" }, 270 { "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 271 &dt_idops_func, "uint16_t(uint16_t)" }, 272 { "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN, 273 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 274 { "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0, 275 &dt_idops_func, "void()" }, 276 { "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0, 277 &dt_idops_type, "pid_t" }, 278 { "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0, 279 &dt_idops_type, "pid_t" }, 280 { "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0, 281 &dt_idops_func, "void(@, ...)" }, 282 { "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0, 283 &dt_idops_func, "void(@, ...)" }, 284 { "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC, 285 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 286 { "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD, 287 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 288 { "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME, 289 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 290 { "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV, 291 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 292 { "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF, 293 DT_ATTR_STABCMN, DT_VERS_1_0, 294 &dt_idops_func, "int(pid_t)" }, 295 { "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE, 296 DT_ATTR_STABCMN, DT_VERS_1_0, 297 &dt_idops_func, "void(@, ...)" }, 298 { "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0, 299 &dt_idops_func, "void(int)" }, 300 { "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0, 301 &dt_idops_func, "int()" }, 302 { "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 303 &dt_idops_func, "int(const char *, const char *, [int])" }, 304 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 305 DT_ATTR_EVOLCMN, DT_VERS_1_0, 306 &dt_idops_func, "int(genunix`krwlock_t *)" }, 307 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 308 DT_ATTR_EVOLCMN, DT_VERS_1_0, 309 &dt_idops_func, "int(genunix`krwlock_t *)" }, 310 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 311 DT_ATTR_EVOLCMN, DT_VERS_1_0, 312 &dt_idops_func, "int(genunix`krwlock_t *)" }, 313 { "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 314 &dt_idops_type, "void" }, 315 { "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN, 316 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" }, 317 { "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE, 318 DT_ATTR_STABCMN, DT_VERS_1_0, 319 &dt_idops_func, "void(int)" }, 320 { "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION, 321 DT_ATTR_STABCMN, DT_VERS_1_0, 322 &dt_idops_func, "int()" }, 323 { "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0, 324 &dt_idops_func, "stack(...)" }, 325 { "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH, 326 DT_ATTR_STABCMN, DT_VERS_1_0, 327 &dt_idops_type, "uint32_t" }, 328 { "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0, 329 &dt_idops_func, "void()" }, 330 { "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 331 &dt_idops_func, "string(const char *, char)" }, 332 { "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0, 333 &dt_idops_func, "size_t(const char *)" }, 334 { "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0, 335 &dt_idops_func, "string(const char *, const char *)" }, 336 { "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 337 &dt_idops_func, "string(const char *, char)" }, 338 { "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 339 &dt_idops_func, "string(const char *, const char *)" }, 340 { "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1, 341 &dt_idops_func, "string(const char *, const char *)" }, 342 { "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 343 &dt_idops_func, "string(const char *, int, [int])" }, 344 { "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0, 345 &dt_idops_func, "void(@)" }, 346 { "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 347 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 348 { "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0, 349 &dt_idops_func, "void(@, ...)" }, 350 { "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 351 &dt_idops_type, "void" }, 352 { "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0, 353 &dt_idops_type, "id_t" }, 354 { "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP, 355 DT_ATTR_STABCMN, DT_VERS_1_0, 356 &dt_idops_type, "uint64_t" }, 357 { "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0, 358 &dt_idops_func, "void(@)" }, 359 { "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM, 360 DT_ATTR_STABCMN, DT_VERS_1_0, 361 &dt_idops_func, "void(@, size_t)" }, 362 { "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN, 363 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 364 { "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN, 365 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 366 { "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN, 367 DT_VERS_1_2, &dt_idops_type, "uint64_t" }, 368 { "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 369 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 370 { "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0, 371 &dt_idops_type, "uid_t" }, 372 { "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN, 373 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 374 { "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0, 375 &dt_idops_regs, NULL }, 376 { "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 377 &dt_idops_func, "stack(...)" }, 378 { "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH, 379 DT_ATTR_STABCMN, DT_VERS_1_2, 380 &dt_idops_type, "uint32_t" }, 381 { "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 382 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 383 { "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP, 384 DT_ATTR_STABCMN, DT_VERS_1_0, 385 &dt_idops_type, "uint64_t" }, 386 { "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP, 387 DT_ATTR_STABCMN, DT_VERS_1_0, 388 &dt_idops_type, "int64_t" }, 389 { "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME, 390 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 391 { NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL } 392 }; 393 394 /* 395 * Tables of ILP32 intrinsic integer and floating-point type templates to use 396 * to populate the dynamic "C" CTF type container. 397 */ 398 static const dt_intrinsic_t _dtrace_intrinsics_32[] = { 399 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 400 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 401 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 402 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 403 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 404 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 405 { "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 406 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 407 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 408 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 409 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 410 { "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 411 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 412 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 413 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 414 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 415 { "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER }, 416 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 417 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 418 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 419 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 420 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 421 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 422 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 423 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 424 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 425 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 426 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 427 { NULL, { 0, 0, 0 }, 0 } 428 }; 429 430 /* 431 * Tables of LP64 intrinsic integer and floating-point type templates to use 432 * to populate the dynamic "C" CTF type container. 433 */ 434 static const dt_intrinsic_t _dtrace_intrinsics_64[] = { 435 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 436 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 437 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 438 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 439 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 440 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 441 { "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 442 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 443 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 444 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 445 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 446 { "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 447 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 448 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 449 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 450 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 451 { "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER }, 452 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 453 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 454 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 455 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 456 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 457 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 458 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 459 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 460 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 461 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 462 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 463 { NULL, { 0, 0, 0 }, 0 } 464 }; 465 466 /* 467 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container. 468 * These aliases ensure that D definitions can use typical <sys/types.h> names. 469 */ 470 static const dt_typedef_t _dtrace_typedefs_32[] = { 471 { "char", "int8_t" }, 472 { "short", "int16_t" }, 473 { "int", "int32_t" }, 474 { "long long", "int64_t" }, 475 { "int", "intptr_t" }, 476 { "int", "ssize_t" }, 477 { "unsigned char", "uint8_t" }, 478 { "unsigned short", "uint16_t" }, 479 { "unsigned", "uint32_t" }, 480 { "unsigned long long", "uint64_t" }, 481 { "unsigned char", "uchar_t" }, 482 { "unsigned short", "ushort_t" }, 483 { "unsigned", "uint_t" }, 484 { "unsigned long", "ulong_t" }, 485 { "unsigned long long", "u_longlong_t" }, 486 { "int", "ptrdiff_t" }, 487 { "unsigned", "uintptr_t" }, 488 { "unsigned", "size_t" }, 489 { "long", "id_t" }, 490 { "long", "pid_t" }, 491 { NULL, NULL } 492 }; 493 494 /* 495 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container. 496 * These aliases ensure that D definitions can use typical <sys/types.h> names. 497 */ 498 static const dt_typedef_t _dtrace_typedefs_64[] = { 499 { "char", "int8_t" }, 500 { "short", "int16_t" }, 501 { "int", "int32_t" }, 502 { "long", "int64_t" }, 503 { "long", "intptr_t" }, 504 { "long", "ssize_t" }, 505 { "unsigned char", "uint8_t" }, 506 { "unsigned short", "uint16_t" }, 507 { "unsigned", "uint32_t" }, 508 { "unsigned long", "uint64_t" }, 509 { "unsigned char", "uchar_t" }, 510 { "unsigned short", "ushort_t" }, 511 { "unsigned", "uint_t" }, 512 { "unsigned long", "ulong_t" }, 513 { "unsigned long long", "u_longlong_t" }, 514 { "long", "ptrdiff_t" }, 515 { "unsigned long", "uintptr_t" }, 516 { "unsigned long", "size_t" }, 517 { "int", "id_t" }, 518 { "int", "pid_t" }, 519 { NULL, NULL } 520 }; 521 522 /* 523 * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[] 524 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 525 */ 526 static const dt_intdesc_t _dtrace_ints_32[] = { 527 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 528 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 529 { "long", NULL, CTF_ERR, 0x7fffffffULL }, 530 { "unsigned long", NULL, CTF_ERR, 0xffffffffULL }, 531 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 532 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 533 }; 534 535 /* 536 * Tables of LP64 integer type templates used to populate the dtp->dt_ints[] 537 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 538 */ 539 static const dt_intdesc_t _dtrace_ints_64[] = { 540 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 541 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 542 { "long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 543 { "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL }, 544 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 545 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 546 }; 547 548 /* 549 * Table of macro variable templates used to populate the macro identifier hash 550 * when a new dtrace client open occurs. Values are set by dtrace_update(). 551 */ 552 static const dt_ident_t _dtrace_macros[] = { 553 { "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 554 { "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 555 { "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 556 { "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 557 { "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 558 { "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 559 { "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 560 { "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 561 { "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 562 { "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 563 { "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 564 { NULL, 0, 0, 0, { 0, 0, 0 }, 0 } 565 }; 566 567 /* 568 * Hard-wired definition string to be compiled and cached every time a new 569 * DTrace library handle is initialized. This string should only be used to 570 * contain definitions that should be present regardless of DTRACE_O_NOLIBS. 571 */ 572 static const char _dtrace_hardwire[] = "\ 573 inline long NULL = 0; \n\ 574 #pragma D binding \"1.0\" NULL\n\ 575 "; 576 577 /* 578 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV. 579 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel. 580 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are 581 * relying on the fact that when running dtrace(1M), isaexec will invoke the 582 * binary with the same bitness as the kernel, which is what we want by default 583 * when generating our DIF. The user can override the choice using oflags. 584 */ 585 static const dtrace_conf_t _dtrace_conf = { 586 DIF_VERSION, /* dtc_difversion */ 587 DIF_DIR_NREGS, /* dtc_difintregs */ 588 DIF_DTR_NREGS, /* dtc_diftupregs */ 589 CTF_MODEL_NATIVE /* dtc_ctfmodel */ 590 }; 591 592 const dtrace_attribute_t _dtrace_maxattr = { 593 DTRACE_STABILITY_MAX, 594 DTRACE_STABILITY_MAX, 595 DTRACE_CLASS_MAX 596 }; 597 598 const dtrace_attribute_t _dtrace_defattr = { 599 DTRACE_STABILITY_STABLE, 600 DTRACE_STABILITY_STABLE, 601 DTRACE_CLASS_COMMON 602 }; 603 604 const dtrace_attribute_t _dtrace_symattr = { 605 DTRACE_STABILITY_PRIVATE, 606 DTRACE_STABILITY_PRIVATE, 607 DTRACE_CLASS_UNKNOWN 608 }; 609 610 const dtrace_attribute_t _dtrace_typattr = { 611 DTRACE_STABILITY_PRIVATE, 612 DTRACE_STABILITY_PRIVATE, 613 DTRACE_CLASS_UNKNOWN 614 }; 615 616 const dtrace_attribute_t _dtrace_prvattr = { 617 DTRACE_STABILITY_PRIVATE, 618 DTRACE_STABILITY_PRIVATE, 619 DTRACE_CLASS_UNKNOWN 620 }; 621 622 const dtrace_pattr_t _dtrace_prvdesc = { 623 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 624 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 625 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 626 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 627 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 628 }; 629 630 const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */ 631 const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */ 632 633 const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */ 634 const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */ 635 636 int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */ 637 int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */ 638 uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */ 639 uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */ 640 uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */ 641 uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */ 642 size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */ 643 int _dtrace_argmax = 32; /* default maximum number of probe arguments */ 644 645 int _dtrace_debug = 0; /* debug messages enabled (off) */ 646 const char *const _dtrace_version = DT_VERS_STRING; /* API version string */ 647 int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */ 648 649 typedef struct dt_fdlist { 650 int *df_fds; /* array of provider driver file descriptors */ 651 uint_t df_ents; /* number of valid elements in df_fds[] */ 652 uint_t df_size; /* size of df_fds[] */ 653 } dt_fdlist_t; 654 655 #pragma init(_dtrace_init) 656 void 657 _dtrace_init(void) 658 { 659 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL; 660 661 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) { 662 if (rd_init(_dtrace_rdvers) == RD_OK) 663 break; 664 } 665 } 666 667 static dtrace_hdl_t * 668 set_open_errno(dtrace_hdl_t *dtp, int *errp, int err) 669 { 670 if (dtp != NULL) 671 dtrace_close(dtp); 672 if (errp != NULL) 673 *errp = err; 674 return (NULL); 675 } 676 677 static void 678 dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp) 679 { 680 dt_provmod_t *prov; 681 char path[PATH_MAX]; 682 struct dirent *dp, *ep; 683 DIR *dirp; 684 int fd; 685 686 if ((dirp = opendir(_dtrace_provdir)) == NULL) 687 return; /* failed to open directory; just skip it */ 688 689 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1); 690 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1); 691 692 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) { 693 if (dp->d_name[0] == '.') 694 continue; /* skip "." and ".." */ 695 696 if (dfp->df_ents == dfp->df_size) { 697 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 698 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 699 700 if (fds == NULL) 701 break; /* skip the rest of this directory */ 702 703 dfp->df_fds = fds; 704 dfp->df_size = size; 705 } 706 707 (void) snprintf(path, sizeof (path), "%s/%s", 708 _dtrace_provdir, dp->d_name); 709 710 if ((fd = open(path, O_RDONLY)) == -1) 711 continue; /* failed to open driver; just skip it */ 712 713 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 714 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) { 715 free(prov); 716 (void) close(fd); 717 break; 718 } 719 720 (void) strcpy(prov->dp_name, dp->d_name); 721 prov->dp_next = *provmod; 722 *provmod = prov; 723 724 dt_dprintf("opened provider %s\n", dp->d_name); 725 dfp->df_fds[dfp->df_ents++] = fd; 726 } 727 728 (void) closedir(dirp); 729 } 730 731 static void 732 dt_provmod_destroy(dt_provmod_t **provmod) 733 { 734 dt_provmod_t *next, *current; 735 736 for (current = *provmod; current != NULL; current = next) { 737 next = current->dp_next; 738 free(current->dp_name); 739 free(current); 740 } 741 742 *provmod = NULL; 743 } 744 745 static const char * 746 dt_get_sysinfo(int cmd, char *buf, size_t len) 747 { 748 ssize_t rv = sysinfo(cmd, buf, len); 749 char *p = buf; 750 751 if (rv < 0 || rv > len) 752 (void) snprintf(buf, len, "%s", "Unknown"); 753 754 while ((p = strchr(p, '.')) != NULL) 755 *p++ = '_'; 756 757 return (buf); 758 } 759 760 static dtrace_hdl_t * 761 dt_vopen(int version, int flags, int *errp, 762 const dtrace_vector_t *vector, void *arg) 763 { 764 dtrace_hdl_t *dtp = NULL; 765 int dtfd = -1, ftfd = -1, fterr = 0; 766 dtrace_prog_t *pgp; 767 dt_module_t *dmp; 768 dt_provmod_t *provmod = NULL; 769 int i, err; 770 struct rlimit rl; 771 772 const dt_intrinsic_t *dinp; 773 const dt_typedef_t *dtyp; 774 const dt_ident_t *idp; 775 776 dtrace_typeinfo_t dtt; 777 ctf_funcinfo_t ctc; 778 ctf_arinfo_t ctr; 779 780 dt_fdlist_t df = { NULL, 0, 0 }; 781 782 char isadef[32], utsdef[32]; 783 char s1[64], s2[64]; 784 785 if (version <= 0) 786 return (set_open_errno(dtp, errp, EINVAL)); 787 788 if (version > DTRACE_VERSION) 789 return (set_open_errno(dtp, errp, EDT_VERSION)); 790 791 if (version < DTRACE_VERSION) { 792 /* 793 * Currently, increasing the library version number is used to 794 * denote a binary incompatible change. That is, a consumer 795 * of the library cannot run on a version of the library with 796 * a higher DTRACE_VERSION number than the consumer compiled 797 * against. Once the library API has been committed to, 798 * backwards binary compatibility will be required; at that 799 * time, this check should change to return EDT_OVERSION only 800 * if the specified version number is less than the version 801 * number at the time of interface commitment. 802 */ 803 return (set_open_errno(dtp, errp, EDT_OVERSION)); 804 } 805 806 if (flags & ~DTRACE_O_MASK) 807 return (set_open_errno(dtp, errp, EINVAL)); 808 809 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32)) 810 return (set_open_errno(dtp, errp, EINVAL)); 811 812 if (vector == NULL && arg != NULL) 813 return (set_open_errno(dtp, errp, EINVAL)); 814 815 if (elf_version(EV_CURRENT) == EV_NONE) 816 return (set_open_errno(dtp, errp, EDT_ELFVERSION)); 817 818 if (vector != NULL || (flags & DTRACE_O_NODEV)) 819 goto alloc; /* do not attempt to open dtrace device */ 820 821 /* 822 * Before we get going, crank our limit on file descriptors up to the 823 * hard limit. This is to allow for the fact that libproc keeps file 824 * descriptors to objects open for the lifetime of the proc handle; 825 * without raising our hard limit, we would have an acceptably small 826 * bound on the number of processes that we could concurrently 827 * instrument with the pid provider. 828 */ 829 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) { 830 rl.rlim_cur = rl.rlim_max; 831 (void) setrlimit(RLIMIT_NOFILE, &rl); 832 } 833 834 /* 835 * Get the device path of each of the providers. We hold them open 836 * in the df.df_fds list until we open the DTrace driver itself, 837 * allowing us to see all of the probes provided on this system. Once 838 * we have the DTrace driver open, we can safely close all the providers 839 * now that they have registered with the framework. 840 */ 841 dt_provmod_open(&provmod, &df); 842 843 dtfd = open("/dev/dtrace/dtrace", O_RDWR); 844 err = errno; /* save errno from opening dtfd */ 845 846 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR); 847 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */ 848 849 while (df.df_ents-- != 0) 850 (void) close(df.df_fds[df.df_ents]); 851 852 free(df.df_fds); 853 854 /* 855 * If we failed to open the dtrace device, fail dtrace_open(). 856 * We convert some kernel errnos to custom libdtrace errnos to 857 * improve the resulting message from the usual strerror(). 858 */ 859 if (dtfd == -1) { 860 dt_provmod_destroy(&provmod); 861 switch (err) { 862 case ENOENT: 863 err = EDT_NOENT; 864 break; 865 case EBUSY: 866 err = EDT_BUSY; 867 break; 868 case EACCES: 869 err = EDT_ACCESS; 870 break; 871 } 872 return (set_open_errno(dtp, errp, err)); 873 } 874 875 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC); 876 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC); 877 878 alloc: 879 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL) 880 return (set_open_errno(dtp, errp, EDT_NOMEM)); 881 882 bzero(dtp, sizeof (dtrace_hdl_t)); 883 dtp->dt_oflags = flags; 884 dtp->dt_prcmode = DT_PROC_STOP_PREINIT; 885 dtp->dt_linkmode = DT_LINK_KERNEL; 886 dtp->dt_linktype = DT_LTYP_ELF; 887 dtp->dt_xlatemode = DT_XL_STATIC; 888 dtp->dt_stdcmode = DT_STDC_XA; 889 dtp->dt_version = version; 890 dtp->dt_fd = dtfd; 891 dtp->dt_ftfd = ftfd; 892 dtp->dt_fterr = fterr; 893 dtp->dt_cdefs_fd = -1; 894 dtp->dt_ddefs_fd = -1; 895 dtp->dt_stdout_fd = -1; 896 dtp->dt_modbuckets = _dtrace_strbuckets; 897 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *)); 898 dtp->dt_provbuckets = _dtrace_strbuckets; 899 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *)); 900 dt_proc_hash_create(dtp); 901 dtp->dt_vmax = DT_VERS_LATEST; 902 dtp->dt_cpp_path = strdup(_dtrace_defcpp); 903 dtp->dt_cpp_argv = malloc(sizeof (char *)); 904 dtp->dt_cpp_argc = 1; 905 dtp->dt_cpp_args = 1; 906 dtp->dt_ld_path = strdup(_dtrace_defld); 907 dtp->dt_provmod = provmod; 908 dtp->dt_vector = vector; 909 dtp->dt_varg = arg; 910 dt_dof_init(dtp); 911 (void) uname(&dtp->dt_uts); 912 913 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL || 914 dtp->dt_procs == NULL || dtp->dt_ld_path == NULL || 915 dtp->dt_cpp_path == NULL || dtp->dt_cpp_argv == NULL) 916 return (set_open_errno(dtp, errp, EDT_NOMEM)); 917 918 for (i = 0; i < DTRACEOPT_MAX; i++) 919 dtp->dt_options[i] = DTRACEOPT_UNSET; 920 921 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path); 922 923 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u", 924 (uint_t)(sizeof (void *) * NBBY)); 925 926 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s", 927 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)), 928 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2))); 929 930 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL || 931 dt_cpp_add_arg(dtp, "-D__unix") == NULL || 932 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL || 933 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL || 934 dt_cpp_add_arg(dtp, isadef) == NULL || 935 dt_cpp_add_arg(dtp, utsdef) == NULL) 936 return (set_open_errno(dtp, errp, EDT_NOMEM)); 937 938 if (flags & DTRACE_O_NODEV) 939 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf)); 940 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0) 941 return (set_open_errno(dtp, errp, errno)); 942 943 if (flags & DTRACE_O_LP64) 944 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64; 945 else if (flags & DTRACE_O_ILP32) 946 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32; 947 948 #ifdef __sparc 949 /* 950 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h> 951 * and __sparcv9 is defined if we are doing a 64-bit compile. 952 */ 953 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL) 954 return (set_open_errno(dtp, errp, EDT_NOMEM)); 955 956 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 && 957 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL) 958 return (set_open_errno(dtp, errp, EDT_NOMEM)); 959 #endif 960 961 #ifdef __x86 962 /* 963 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit 964 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC, 965 * they are defined exclusive of one another (see PSARC 2004/619). 966 */ 967 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 968 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL) 969 return (set_open_errno(dtp, errp, EDT_NOMEM)); 970 } else { 971 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL) 972 return (set_open_errno(dtp, errp, EDT_NOMEM)); 973 } 974 #endif 975 976 if (dtp->dt_conf.dtc_difversion < DIF_VERSION) 977 return (set_open_errno(dtp, errp, EDT_DIFVERS)); 978 979 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) 980 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32)); 981 else 982 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64)); 983 984 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX); 985 dtp->dt_aggs = dt_idhash_create("aggregation", NULL, 986 DTRACE_AGGVARIDNONE + 1, UINT_MAX); 987 988 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals, 989 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 990 991 dtp->dt_tls = dt_idhash_create("thread local", NULL, 992 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 993 994 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL || 995 dtp->dt_globals == NULL || dtp->dt_tls == NULL) 996 return (set_open_errno(dtp, errp, EDT_NOMEM)); 997 998 /* 999 * Populate the dt_macros identifier hash table by hand: we can't use 1000 * the dt_idhash_populate() mechanism because we're not yet compiling 1001 * and dtrace_update() needs to immediately reference these idents. 1002 */ 1003 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) { 1004 if (dt_idhash_insert(dtp->dt_macros, idp->di_name, 1005 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr, 1006 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw, 1007 idp->di_iarg, 0) == NULL) 1008 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1009 } 1010 1011 /* 1012 * Update the module list using /system/object and load the values for 1013 * the macro variable definitions according to the current process. 1014 */ 1015 dtrace_update(dtp); 1016 1017 /* 1018 * Select the intrinsics and typedefs we want based on the data model. 1019 * The intrinsics are under "C". The typedefs are added under "D". 1020 */ 1021 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) { 1022 dinp = _dtrace_intrinsics_32; 1023 dtyp = _dtrace_typedefs_32; 1024 } else { 1025 dinp = _dtrace_intrinsics_64; 1026 dtyp = _dtrace_typedefs_64; 1027 } 1028 1029 /* 1030 * Create a dynamic CTF container under the "C" scope for intrinsic 1031 * types and types defined in ANSI-C header files that are included. 1032 */ 1033 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL) 1034 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1035 1036 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1037 return (set_open_errno(dtp, errp, EDT_CTF)); 1038 1039 dt_dprintf("created CTF container for %s (%p)\n", 1040 dmp->dm_name, (void *)dmp->dm_ctfp); 1041 1042 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1043 ctf_setspecific(dmp->dm_ctfp, dmp); 1044 1045 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1046 dmp->dm_modid = -1; /* no module ID */ 1047 1048 /* 1049 * Fill the dynamic "C" CTF container with all of the intrinsic 1050 * integer and floating-point types appropriate for this data model. 1051 */ 1052 for (; dinp->din_name != NULL; dinp++) { 1053 if (dinp->din_kind == CTF_K_INTEGER) { 1054 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT, 1055 dinp->din_name, &dinp->din_data); 1056 } else { 1057 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT, 1058 dinp->din_name, &dinp->din_data); 1059 } 1060 1061 if (err == CTF_ERR) { 1062 dt_dprintf("failed to add %s to C container: %s\n", 1063 dinp->din_name, ctf_errmsg( 1064 ctf_errno(dmp->dm_ctfp))); 1065 return (set_open_errno(dtp, errp, EDT_CTF)); 1066 } 1067 } 1068 1069 if (ctf_update(dmp->dm_ctfp) != 0) { 1070 dt_dprintf("failed to update C container: %s\n", 1071 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1072 return (set_open_errno(dtp, errp, EDT_CTF)); 1073 } 1074 1075 /* 1076 * Add intrinsic pointer types that are needed to initialize printf 1077 * format dictionary types (see table in dt_printf.c). 1078 */ 1079 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1080 ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1081 1082 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1083 ctf_lookup_by_name(dmp->dm_ctfp, "char")); 1084 1085 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1086 ctf_lookup_by_name(dmp->dm_ctfp, "int")); 1087 1088 if (ctf_update(dmp->dm_ctfp) != 0) { 1089 dt_dprintf("failed to update C container: %s\n", 1090 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1091 return (set_open_errno(dtp, errp, EDT_CTF)); 1092 } 1093 1094 /* 1095 * Create a dynamic CTF container under the "D" scope for types that 1096 * are defined by the D program itself or on-the-fly by the D compiler. 1097 * The "D" CTF container is a child of the "C" CTF container. 1098 */ 1099 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL) 1100 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1101 1102 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1103 return (set_open_errno(dtp, errp, EDT_CTF)); 1104 1105 dt_dprintf("created CTF container for %s (%p)\n", 1106 dmp->dm_name, (void *)dmp->dm_ctfp); 1107 1108 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1109 ctf_setspecific(dmp->dm_ctfp, dmp); 1110 1111 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1112 dmp->dm_modid = -1; /* no module ID */ 1113 1114 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) { 1115 dt_dprintf("failed to import D parent container: %s\n", 1116 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1117 return (set_open_errno(dtp, errp, EDT_CTF)); 1118 } 1119 1120 /* 1121 * Fill the dynamic "D" CTF container with all of the built-in typedefs 1122 * that we need to use for our D variable and function definitions. 1123 * This ensures that basic inttypes.h names are always available to us. 1124 */ 1125 for (; dtyp->dty_src != NULL; dtyp++) { 1126 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1127 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp, 1128 dtyp->dty_src)) == CTF_ERR) { 1129 dt_dprintf("failed to add typedef %s %s to D " 1130 "container: %s", dtyp->dty_src, dtyp->dty_dst, 1131 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1132 return (set_open_errno(dtp, errp, EDT_CTF)); 1133 } 1134 } 1135 1136 /* 1137 * Insert a CTF ID corresponding to a pointer to a type of kind 1138 * CTF_K_FUNCTION we can use in the compiler for function pointers. 1139 * CTF treats all function pointers as "int (*)()" so we only need one. 1140 */ 1141 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int"); 1142 ctc.ctc_argc = 0; 1143 ctc.ctc_flags = 0; 1144 1145 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp, 1146 CTF_ADD_ROOT, &ctc, NULL); 1147 1148 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp, 1149 CTF_ADD_ROOT, dtp->dt_type_func); 1150 1151 /* 1152 * We also insert CTF definitions for the special D intrinsic types 1153 * string and <DYN> into the D container. The string type is added 1154 * as a typedef of char[n]. The <DYN> type is an alias for void. 1155 * We compare types to these special CTF ids throughout the compiler. 1156 */ 1157 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char"); 1158 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long"); 1159 ctr.ctr_nelems = _dtrace_strsize; 1160 1161 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1162 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr)); 1163 1164 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1165 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1166 1167 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1168 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1169 1170 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1171 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1172 1173 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1174 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1175 1176 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR || 1177 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR || 1178 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR || 1179 dtp->dt_type_usymaddr == CTF_ERR) { 1180 dt_dprintf("failed to add intrinsic to D container: %s\n", 1181 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1182 return (set_open_errno(dtp, errp, EDT_CTF)); 1183 } 1184 1185 if (ctf_update(dmp->dm_ctfp) != 0) { 1186 dt_dprintf("failed update D container: %s\n", 1187 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1188 return (set_open_errno(dtp, errp, EDT_CTF)); 1189 } 1190 1191 /* 1192 * Initialize the integer description table used to convert integer 1193 * constants to the appropriate types. Refer to the comments above 1194 * dt_node_int() for a complete description of how this table is used. 1195 */ 1196 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) { 1197 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY, 1198 dtp->dt_ints[i].did_name, &dtt) != 0) { 1199 dt_dprintf("failed to lookup integer type %s: %s\n", 1200 dtp->dt_ints[i].did_name, 1201 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1202 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1203 } 1204 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp; 1205 dtp->dt_ints[i].did_type = dtt.dtt_type; 1206 } 1207 1208 /* 1209 * Now that we've created the "C" and "D" containers, move them to the 1210 * start of the module list so that these types and symbols are found 1211 * first (for stability) when iterating through the module list. 1212 */ 1213 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs); 1214 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs); 1215 1216 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs); 1217 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs); 1218 1219 if (dt_pfdict_create(dtp) == -1) 1220 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1221 1222 /* 1223 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default 1224 * because without /dev/dtrace open, we will not be able to load the 1225 * names and attributes of any providers or probes from the kernel. 1226 */ 1227 if (flags & DTRACE_O_NODEV) 1228 dtp->dt_cflags |= DTRACE_C_ZDEFS; 1229 1230 /* 1231 * Load hard-wired inlines into the definition cache by calling the 1232 * compiler on the raw definition string defined above. 1233 */ 1234 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire, 1235 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) { 1236 dt_dprintf("failed to load hard-wired definitions: %s\n", 1237 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1238 return (set_open_errno(dtp, errp, EDT_HARDWIRE)); 1239 } 1240 1241 dt_program_destroy(dtp, pgp); 1242 1243 /* 1244 * Set up the default DTrace library path. Once set, the next call to 1245 * dt_compile() will compile all the libraries. We intentionally defer 1246 * library processing to improve overhead for clients that don't ever 1247 * compile, and to provide better error reporting (because the full 1248 * reporting of compiler errors requires dtrace_open() to succeed). 1249 */ 1250 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0) 1251 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1252 1253 return (dtp); 1254 } 1255 1256 dtrace_hdl_t * 1257 dtrace_open(int version, int flags, int *errp) 1258 { 1259 return (dt_vopen(version, flags, errp, NULL, NULL)); 1260 } 1261 1262 dtrace_hdl_t * 1263 dtrace_vopen(int version, int flags, int *errp, 1264 const dtrace_vector_t *vector, void *arg) 1265 { 1266 return (dt_vopen(version, flags, errp, vector, arg)); 1267 } 1268 1269 void 1270 dtrace_close(dtrace_hdl_t *dtp) 1271 { 1272 dt_ident_t *idp, *ndp; 1273 dt_module_t *dmp; 1274 dt_provider_t *pvp; 1275 dtrace_prog_t *pgp; 1276 dt_xlator_t *dxp; 1277 dt_dirpath_t *dirp; 1278 int i; 1279 1280 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL) 1281 dt_program_destroy(dtp, pgp); 1282 1283 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL) 1284 dt_xlator_destroy(dtp, dxp); 1285 1286 dt_free(dtp, dtp->dt_xlatormap); 1287 1288 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) { 1289 ndp = idp->di_next; 1290 dt_ident_destroy(idp); 1291 } 1292 1293 if (dtp->dt_macros != NULL) 1294 dt_idhash_destroy(dtp->dt_macros); 1295 if (dtp->dt_aggs != NULL) 1296 dt_idhash_destroy(dtp->dt_aggs); 1297 if (dtp->dt_globals != NULL) 1298 dt_idhash_destroy(dtp->dt_globals); 1299 if (dtp->dt_tls != NULL) 1300 dt_idhash_destroy(dtp->dt_tls); 1301 1302 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL) 1303 dt_module_destroy(dtp, dmp); 1304 1305 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL) 1306 dt_provider_destroy(dtp, pvp); 1307 1308 if (dtp->dt_procs != NULL) 1309 dt_proc_hash_destroy(dtp); 1310 1311 if (dtp->dt_fd != -1) 1312 (void) close(dtp->dt_fd); 1313 if (dtp->dt_ftfd != -1) 1314 (void) close(dtp->dt_ftfd); 1315 if (dtp->dt_cdefs_fd != -1) 1316 (void) close(dtp->dt_cdefs_fd); 1317 if (dtp->dt_ddefs_fd != -1) 1318 (void) close(dtp->dt_ddefs_fd); 1319 if (dtp->dt_stdout_fd != -1) 1320 (void) close(dtp->dt_stdout_fd); 1321 1322 dt_epid_destroy(dtp); 1323 dt_aggid_destroy(dtp); 1324 dt_format_destroy(dtp); 1325 dt_buffered_destroy(dtp); 1326 dt_aggregate_destroy(dtp); 1327 free(dtp->dt_buf.dtbd_data); 1328 dt_pfdict_destroy(dtp); 1329 dt_provmod_destroy(&dtp->dt_provmod); 1330 dt_dof_fini(dtp); 1331 1332 for (i = 1; i < dtp->dt_cpp_argc; i++) 1333 free(dtp->dt_cpp_argv[i]); 1334 1335 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) { 1336 dt_list_delete(&dtp->dt_lib_path, dirp); 1337 free(dirp->dir_path); 1338 free(dirp); 1339 } 1340 1341 free(dtp->dt_cpp_argv); 1342 free(dtp->dt_cpp_path); 1343 free(dtp->dt_ld_path); 1344 1345 free(dtp->dt_mods); 1346 free(dtp->dt_provs); 1347 free(dtp); 1348 } 1349 1350 int 1351 dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods) 1352 { 1353 dt_provmod_t *prov; 1354 int i = 0; 1355 1356 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) { 1357 if (i < nmods) 1358 mods[i] = prov->dp_name; 1359 } 1360 1361 return (i); 1362 } 1363 1364 int 1365 dtrace_ctlfd(dtrace_hdl_t *dtp) 1366 { 1367 return (dtp->dt_fd); 1368 } 1369