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 2007 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <sys/types.h> 30 #include <sys/modctl.h> 31 #include <sys/systeminfo.h> 32 #include <sys/resource.h> 33 34 #include <libelf.h> 35 #include <strings.h> 36 #include <alloca.h> 37 #include <limits.h> 38 #include <unistd.h> 39 #include <stdlib.h> 40 #include <stdio.h> 41 #include <fcntl.h> 42 #include <errno.h> 43 #include <assert.h> 44 45 #define _POSIX_PTHREAD_SEMANTICS 46 #include <dirent.h> 47 #undef _POSIX_PTHREAD_SEMANTICS 48 49 #include <dt_impl.h> 50 #include <dt_program.h> 51 #include <dt_module.h> 52 #include <dt_printf.h> 53 #include <dt_string.h> 54 #include <dt_provider.h> 55 56 /* 57 * Stability and versioning definitions. These #defines are used in the tables 58 * of identifiers below to fill in the attribute and version fields associated 59 * with each identifier. The DT_ATTR_* macros are a convenience to permit more 60 * concise declarations of common attributes such as Stable/Stable/Common. The 61 * DT_VERS_* macros declare the encoded integer values of all versions used so 62 * far. DT_VERS_LATEST must correspond to the latest version value among all 63 * versions exported by the D compiler. DT_VERS_STRING must be an ASCII string 64 * that contains DT_VERS_LATEST within it along with any suffixes (e.g. Beta). 65 * You must update DT_VERS_LATEST and DT_VERS_STRING when adding a new version, 66 * and then add the new version to the _dtrace_versions[] array declared below. 67 * Refer to the Solaris Dynamic Tracing Guide Stability and Versioning chapters 68 * respectively for an explanation of these DTrace features and their values. 69 * 70 * NOTE: Although the DTrace versioning scheme supports the labeling and 71 * introduction of incompatible changes (e.g. dropping an interface in a 72 * major release), the libdtrace code does not currently support this. 73 * All versions are assumed to strictly inherit from one another. If 74 * we ever need to provide divergent interfaces, this will need work. 75 */ 76 #define DT_ATTR_STABCMN { DTRACE_STABILITY_STABLE, \ 77 DTRACE_STABILITY_STABLE, DTRACE_CLASS_COMMON } 78 79 #define DT_ATTR_EVOLCMN { DTRACE_STABILITY_EVOLVING, \ 80 DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_COMMON \ 81 } 82 83 /* 84 * The version number should be increased for every customer visible release 85 * of Solaris. The major number should be incremented when a fundamental 86 * change has been made that would affect all consumers, and would reflect 87 * sweeping changes to DTrace or the D language. The minor number should be 88 * incremented when a change is introduced that could break scripts that had 89 * previously worked; for example, adding a new built-in variable could break 90 * a script which was already using that identifier. The micro number should 91 * be changed when introducing functionality changes or major bug fixes that 92 * do not affect backward compatibility -- this is merely to make capabilities 93 * easily determined from the version number. Minor bugs do not require any 94 * modification to the version number. 95 */ 96 #define DT_VERS_1_0 DT_VERSION_NUMBER(1, 0, 0) 97 #define DT_VERS_1_1 DT_VERSION_NUMBER(1, 1, 0) 98 #define DT_VERS_1_2 DT_VERSION_NUMBER(1, 2, 0) 99 #define DT_VERS_1_2_1 DT_VERSION_NUMBER(1, 2, 1) 100 #define DT_VERS_1_2_2 DT_VERSION_NUMBER(1, 2, 2) 101 #define DT_VERS_1_3 DT_VERSION_NUMBER(1, 3, 0) 102 #define DT_VERS_1_4 DT_VERSION_NUMBER(1, 4, 0) 103 #define DT_VERS_1_4_1 DT_VERSION_NUMBER(1, 4, 1) 104 #define DT_VERS_LATEST DT_VERS_1_4_1 105 #define DT_VERS_STRING "Sun D 1.4.1" 106 107 const dt_version_t _dtrace_versions[] = { 108 DT_VERS_1_0, /* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */ 109 DT_VERS_1_1, /* D API 1.1.0 Solaris Express 6/05 */ 110 DT_VERS_1_2, /* D API 1.2.0 Solaris 10 Update 1 */ 111 DT_VERS_1_2_1, /* D API 1.2.1 Solaris Express 4/06 */ 112 DT_VERS_1_2_2, /* D API 1.2.2 Solaris Express 6/06 */ 113 DT_VERS_1_3, /* D API 1.3 Solaris Express 10/06 */ 114 DT_VERS_1_4, /* D API 1.4 Solaris Express 2/07 */ 115 DT_VERS_1_4_1, /* D API 1.4.1 Solaris Express 4/07 */ 116 0 117 }; 118 119 /* 120 * Table of global identifiers. This is used to populate the global identifier 121 * hash when a new dtrace client open occurs. For more info see dt_ident.h. 122 * The global identifiers that represent functions use the dt_idops_func ops 123 * and specify the private data pointer as a prototype string which is parsed 124 * when the identifier is first encountered. These prototypes look like ANSI 125 * C function prototypes except that the special symbol "@" can be used as a 126 * wildcard to represent a single parameter of any type (i.e. any dt_node_t). 127 * The standard "..." notation can also be used to represent varargs. An empty 128 * parameter list is taken to mean void (that is, no arguments are permitted). 129 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional 130 * argument. 131 */ 132 static const dt_ident_t _dtrace_globals[] = { 133 { "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0, 134 &dt_idops_func, "void *(size_t)" }, 135 { "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0, 136 &dt_idops_type, "int64_t" }, 137 { "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0, 138 &dt_idops_type, "int64_t" }, 139 { "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0, 140 &dt_idops_type, "int64_t" }, 141 { "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0, 142 &dt_idops_type, "int64_t" }, 143 { "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0, 144 &dt_idops_type, "int64_t" }, 145 { "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0, 146 &dt_idops_type, "int64_t" }, 147 { "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0, 148 &dt_idops_type, "int64_t" }, 149 { "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0, 150 &dt_idops_type, "int64_t" }, 151 { "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0, 152 &dt_idops_type, "int64_t" }, 153 { "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0, 154 &dt_idops_type, "int64_t" }, 155 { "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0, 156 &dt_idops_args, NULL }, 157 { "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0, 158 &dt_idops_func, "void(@)" }, 159 { "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0, 160 &dt_idops_func, "string(const char *)" }, 161 { "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0, 162 &dt_idops_func, "void(void *, void *, size_t)" }, 163 { "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT, 164 DT_ATTR_STABCMN, DT_VERS_1_0, 165 &dt_idops_func, "void()" }, 166 { "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0, 167 &dt_idops_type, "uintptr_t" }, 168 { "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0, 169 &dt_idops_func, "void(int)" }, 170 { "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN, 171 DT_VERS_1_0, &dt_idops_func, "string(const char *)" }, 172 { "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0, 173 &dt_idops_func, "void(...)" }, 174 { "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0, 175 &dt_idops_func, "void(int)" }, 176 { "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0, 177 &dt_idops_func, "void *(uintptr_t, size_t)" }, 178 { "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR, 179 DT_ATTR_STABCMN, DT_VERS_1_0, 180 &dt_idops_func, "string(uintptr_t, [size_t])" }, 181 { "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN, 182 DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" }, 183 { "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0, 184 &dt_idops_func, "void(void *, uintptr_t, size_t)" }, 185 { "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR, 186 DT_ATTR_STABCMN, DT_VERS_1_0, 187 &dt_idops_func, "void(char *, uintptr_t, size_t)" }, 188 { "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0, 189 &dt_idops_func, "void()" }, 190 { "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD, 191 { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE, 192 DTRACE_CLASS_COMMON }, DT_VERS_1_0, 193 &dt_idops_type, "genunix`kthread_t *" }, 194 { "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME, 195 DT_ATTR_EVOLCMN, DT_VERS_1_0, 196 &dt_idops_func, "string(void *, int64_t)" }, 197 { "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN, 198 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 199 { "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0, 200 &dt_idops_func, "string(const char *)" }, 201 { "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0, 202 &dt_idops_func, "void(int)" }, 203 { "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0, 204 &dt_idops_type, "uint_t" }, 205 { "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0, 206 &dt_idops_type, "int" }, 207 { "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME, 208 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 209 { "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0, 210 &dt_idops_func, "void(int)" }, 211 { "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN, 212 DT_VERS_1_1, &dt_idops_func, "void(@, ...)" }, 213 { "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN, 214 DT_VERS_1_0, &dt_idops_func, "void()" }, 215 { "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 216 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 217 { "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR, 218 DT_ATTR_EVOLCMN, DT_VERS_1_0, 219 &dt_idops_func, "genunix`major_t(genunix`dev_t)" }, 220 { "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR, 221 DT_ATTR_EVOLCMN, DT_VERS_1_0, 222 &dt_idops_func, "genunix`minor_t(genunix`dev_t)" }, 223 { "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 224 &dt_idops_func, "uint32_t(uint32_t)" }, 225 { "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 226 &dt_idops_func, "uint64_t(uint64_t)" }, 227 { "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 228 &dt_idops_func, "uint16_t(uint16_t)" }, 229 { "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0, 230 &dt_idops_type, "gid_t" }, 231 { "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0, 232 &dt_idops_type, "uint_t" }, 233 { "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 234 &dt_idops_func, "int(const char *, const char *, [int])" }, 235 { "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0, 236 &dt_idops_type, "uint_t" }, 237 { "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 238 &dt_idops_func, "stack(...)" }, 239 { "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0, 240 &dt_idops_func, "string(int64_t)" }, 241 { "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE, 242 DT_ATTR_STABCMN, DT_VERS_1_0, 243 &dt_idops_func, "void(@, int32_t, int32_t, ...)" }, 244 { "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0, 245 &dt_idops_func, "void(@)" }, 246 { "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0, 247 &dt_idops_func, "void(@)" }, 248 { "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN, 249 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 250 { "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE, 251 DT_ATTR_STABCMN, DT_VERS_1_0, 252 &dt_idops_func, "size_t(mblk_t *)" }, 253 { "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE, 254 DT_ATTR_STABCMN, DT_VERS_1_0, 255 &dt_idops_func, "size_t(mblk_t *)" }, 256 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 257 DT_ATTR_EVOLCMN, DT_VERS_1_0, 258 &dt_idops_func, "int(genunix`kmutex_t *)" }, 259 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 260 DT_ATTR_EVOLCMN, DT_VERS_1_0, 261 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" }, 262 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 263 DT_ATTR_EVOLCMN, DT_VERS_1_0, 264 &dt_idops_func, "int(genunix`kmutex_t *)" }, 265 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 266 DT_ATTR_EVOLCMN, DT_VERS_1_0, 267 &dt_idops_func, "int(genunix`kmutex_t *)" }, 268 { "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 269 &dt_idops_func, "uint32_t(uint32_t)" }, 270 { "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 271 &dt_idops_func, "uint64_t(uint64_t)" }, 272 { "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 273 &dt_idops_func, "uint16_t(uint16_t)" }, 274 { "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN, 275 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 276 { "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0, 277 &dt_idops_func, "void()" }, 278 { "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0, 279 &dt_idops_type, "pid_t" }, 280 { "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0, 281 &dt_idops_type, "pid_t" }, 282 { "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0, 283 &dt_idops_func, "void(@, ...)" }, 284 { "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0, 285 &dt_idops_func, "void(@, ...)" }, 286 { "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC, 287 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 288 { "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD, 289 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 290 { "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME, 291 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 292 { "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV, 293 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 294 { "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF, 295 DT_ATTR_STABCMN, DT_VERS_1_0, 296 &dt_idops_func, "int(pid_t)" }, 297 { "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE, 298 DT_ATTR_STABCMN, DT_VERS_1_0, 299 &dt_idops_func, "void(@, ...)" }, 300 { "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0, 301 &dt_idops_func, "void(int)" }, 302 { "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0, 303 &dt_idops_func, "int()" }, 304 { "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 305 &dt_idops_func, "int(const char *, const char *, [int])" }, 306 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 307 DT_ATTR_EVOLCMN, DT_VERS_1_0, 308 &dt_idops_func, "int(genunix`krwlock_t *)" }, 309 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 310 DT_ATTR_EVOLCMN, DT_VERS_1_0, 311 &dt_idops_func, "int(genunix`krwlock_t *)" }, 312 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 313 DT_ATTR_EVOLCMN, DT_VERS_1_0, 314 &dt_idops_func, "int(genunix`krwlock_t *)" }, 315 { "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 316 &dt_idops_type, "void" }, 317 { "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN, 318 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" }, 319 { "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE, 320 DT_ATTR_STABCMN, DT_VERS_1_0, 321 &dt_idops_func, "void(int)" }, 322 { "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION, 323 DT_ATTR_STABCMN, DT_VERS_1_0, 324 &dt_idops_func, "int()" }, 325 { "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0, 326 &dt_idops_func, "stack(...)" }, 327 { "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH, 328 DT_ATTR_STABCMN, DT_VERS_1_0, 329 &dt_idops_type, "uint32_t" }, 330 { "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0, 331 &dt_idops_func, "void()" }, 332 { "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 333 &dt_idops_func, "string(const char *, char)" }, 334 { "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0, 335 &dt_idops_func, "size_t(const char *)" }, 336 { "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0, 337 &dt_idops_func, "string(const char *, const char *)" }, 338 { "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 339 &dt_idops_func, "string(const char *, char)" }, 340 { "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 341 &dt_idops_func, "string(const char *, const char *)" }, 342 { "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1, 343 &dt_idops_func, "string(const char *, const char *)" }, 344 { "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 345 &dt_idops_func, "string(const char *, int, [int])" }, 346 { "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0, 347 &dt_idops_func, "void(@)" }, 348 { "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 349 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 350 { "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0, 351 &dt_idops_func, "void(@, ...)" }, 352 { "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 353 &dt_idops_type, "void" }, 354 { "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0, 355 &dt_idops_type, "id_t" }, 356 { "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP, 357 DT_ATTR_STABCMN, DT_VERS_1_0, 358 &dt_idops_type, "uint64_t" }, 359 { "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0, 360 &dt_idops_func, "void(@)" }, 361 { "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM, 362 DT_ATTR_STABCMN, DT_VERS_1_0, 363 &dt_idops_func, "void(@, size_t)" }, 364 { "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN, 365 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 366 { "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN, 367 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 368 { "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN, 369 DT_VERS_1_2, &dt_idops_type, "uint64_t" }, 370 { "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 371 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 372 { "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0, 373 &dt_idops_type, "uid_t" }, 374 { "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN, 375 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 376 { "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0, 377 &dt_idops_regs, NULL }, 378 { "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 379 &dt_idops_func, "stack(...)" }, 380 { "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH, 381 DT_ATTR_STABCMN, DT_VERS_1_2, 382 &dt_idops_type, "uint32_t" }, 383 { "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 384 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 385 { "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP, 386 DT_ATTR_STABCMN, DT_VERS_1_0, 387 &dt_idops_type, "uint64_t" }, 388 { "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP, 389 DT_ATTR_STABCMN, DT_VERS_1_0, 390 &dt_idops_type, "int64_t" }, 391 { "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME, 392 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 393 { NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL } 394 }; 395 396 /* 397 * Tables of ILP32 intrinsic integer and floating-point type templates to use 398 * to populate the dynamic "C" CTF type container. 399 */ 400 static const dt_intrinsic_t _dtrace_intrinsics_32[] = { 401 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 402 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 403 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 404 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 405 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 406 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 407 { "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 408 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 409 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 410 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 411 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 412 { "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 413 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 414 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 415 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 416 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 417 { "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER }, 418 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 419 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 420 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 421 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 422 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 423 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 424 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 425 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 426 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 427 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 428 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 429 { NULL, { 0, 0, 0 }, 0 } 430 }; 431 432 /* 433 * Tables of LP64 intrinsic integer and floating-point type templates to use 434 * to populate the dynamic "C" CTF type container. 435 */ 436 static const dt_intrinsic_t _dtrace_intrinsics_64[] = { 437 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 438 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 439 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 440 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 441 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 442 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 443 { "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 444 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 445 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 446 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 447 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 448 { "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 449 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 450 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 451 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 452 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 453 { "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER }, 454 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 455 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 456 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 457 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 458 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 459 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 460 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 461 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 462 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 463 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 464 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 465 { NULL, { 0, 0, 0 }, 0 } 466 }; 467 468 /* 469 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container. 470 * These aliases ensure that D definitions can use typical <sys/types.h> names. 471 */ 472 static const dt_typedef_t _dtrace_typedefs_32[] = { 473 { "char", "int8_t" }, 474 { "short", "int16_t" }, 475 { "int", "int32_t" }, 476 { "long long", "int64_t" }, 477 { "int", "intptr_t" }, 478 { "int", "ssize_t" }, 479 { "unsigned char", "uint8_t" }, 480 { "unsigned short", "uint16_t" }, 481 { "unsigned", "uint32_t" }, 482 { "unsigned long long", "uint64_t" }, 483 { "unsigned char", "uchar_t" }, 484 { "unsigned short", "ushort_t" }, 485 { "unsigned", "uint_t" }, 486 { "unsigned long", "ulong_t" }, 487 { "unsigned long long", "u_longlong_t" }, 488 { "int", "ptrdiff_t" }, 489 { "unsigned", "uintptr_t" }, 490 { "unsigned", "size_t" }, 491 { "long", "id_t" }, 492 { "long", "pid_t" }, 493 { NULL, NULL } 494 }; 495 496 /* 497 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container. 498 * These aliases ensure that D definitions can use typical <sys/types.h> names. 499 */ 500 static const dt_typedef_t _dtrace_typedefs_64[] = { 501 { "char", "int8_t" }, 502 { "short", "int16_t" }, 503 { "int", "int32_t" }, 504 { "long", "int64_t" }, 505 { "long", "intptr_t" }, 506 { "long", "ssize_t" }, 507 { "unsigned char", "uint8_t" }, 508 { "unsigned short", "uint16_t" }, 509 { "unsigned", "uint32_t" }, 510 { "unsigned long", "uint64_t" }, 511 { "unsigned char", "uchar_t" }, 512 { "unsigned short", "ushort_t" }, 513 { "unsigned", "uint_t" }, 514 { "unsigned long", "ulong_t" }, 515 { "unsigned long long", "u_longlong_t" }, 516 { "long", "ptrdiff_t" }, 517 { "unsigned long", "uintptr_t" }, 518 { "unsigned long", "size_t" }, 519 { "int", "id_t" }, 520 { "int", "pid_t" }, 521 { NULL, NULL } 522 }; 523 524 /* 525 * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[] 526 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 527 */ 528 static const dt_intdesc_t _dtrace_ints_32[] = { 529 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 530 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 531 { "long", NULL, CTF_ERR, 0x7fffffffULL }, 532 { "unsigned long", NULL, CTF_ERR, 0xffffffffULL }, 533 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 534 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 535 }; 536 537 /* 538 * Tables of LP64 integer type templates used to populate the dtp->dt_ints[] 539 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 540 */ 541 static const dt_intdesc_t _dtrace_ints_64[] = { 542 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 543 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 544 { "long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 545 { "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL }, 546 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 547 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 548 }; 549 550 /* 551 * Table of macro variable templates used to populate the macro identifier hash 552 * when a new dtrace client open occurs. Values are set by dtrace_update(). 553 */ 554 static const dt_ident_t _dtrace_macros[] = { 555 { "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 556 { "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 557 { "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 558 { "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 559 { "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 560 { "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 561 { "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 562 { "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 563 { "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 564 { "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 565 { "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 566 { NULL, 0, 0, 0, { 0, 0, 0 }, 0 } 567 }; 568 569 /* 570 * Hard-wired definition string to be compiled and cached every time a new 571 * DTrace library handle is initialized. This string should only be used to 572 * contain definitions that should be present regardless of DTRACE_O_NOLIBS. 573 */ 574 static const char _dtrace_hardwire[] = "\ 575 inline long NULL = 0; \n\ 576 #pragma D binding \"1.0\" NULL\n\ 577 "; 578 579 /* 580 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV. 581 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel. 582 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are 583 * relying on the fact that when running dtrace(1M), isaexec will invoke the 584 * binary with the same bitness as the kernel, which is what we want by default 585 * when generating our DIF. The user can override the choice using oflags. 586 */ 587 static const dtrace_conf_t _dtrace_conf = { 588 DIF_VERSION, /* dtc_difversion */ 589 DIF_DIR_NREGS, /* dtc_difintregs */ 590 DIF_DTR_NREGS, /* dtc_diftupregs */ 591 CTF_MODEL_NATIVE /* dtc_ctfmodel */ 592 }; 593 594 const dtrace_attribute_t _dtrace_maxattr = { 595 DTRACE_STABILITY_MAX, 596 DTRACE_STABILITY_MAX, 597 DTRACE_CLASS_MAX 598 }; 599 600 const dtrace_attribute_t _dtrace_defattr = { 601 DTRACE_STABILITY_STABLE, 602 DTRACE_STABILITY_STABLE, 603 DTRACE_CLASS_COMMON 604 }; 605 606 const dtrace_attribute_t _dtrace_symattr = { 607 DTRACE_STABILITY_PRIVATE, 608 DTRACE_STABILITY_PRIVATE, 609 DTRACE_CLASS_UNKNOWN 610 }; 611 612 const dtrace_attribute_t _dtrace_typattr = { 613 DTRACE_STABILITY_PRIVATE, 614 DTRACE_STABILITY_PRIVATE, 615 DTRACE_CLASS_UNKNOWN 616 }; 617 618 const dtrace_attribute_t _dtrace_prvattr = { 619 DTRACE_STABILITY_PRIVATE, 620 DTRACE_STABILITY_PRIVATE, 621 DTRACE_CLASS_UNKNOWN 622 }; 623 624 const dtrace_pattr_t _dtrace_prvdesc = { 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 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 629 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 630 }; 631 632 const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */ 633 const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */ 634 635 const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */ 636 const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */ 637 638 int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */ 639 int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */ 640 uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */ 641 uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */ 642 uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */ 643 uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */ 644 size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */ 645 int _dtrace_argmax = 32; /* default maximum number of probe arguments */ 646 647 int _dtrace_debug = 0; /* debug messages enabled (off) */ 648 const char *const _dtrace_version = DT_VERS_STRING; /* API version string */ 649 int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */ 650 651 typedef struct dt_fdlist { 652 int *df_fds; /* array of provider driver file descriptors */ 653 uint_t df_ents; /* number of valid elements in df_fds[] */ 654 uint_t df_size; /* size of df_fds[] */ 655 } dt_fdlist_t; 656 657 #pragma init(_dtrace_init) 658 void 659 _dtrace_init(void) 660 { 661 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL; 662 663 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) { 664 if (rd_init(_dtrace_rdvers) == RD_OK) 665 break; 666 } 667 } 668 669 static dtrace_hdl_t * 670 set_open_errno(dtrace_hdl_t *dtp, int *errp, int err) 671 { 672 if (dtp != NULL) 673 dtrace_close(dtp); 674 if (errp != NULL) 675 *errp = err; 676 return (NULL); 677 } 678 679 static void 680 dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp) 681 { 682 dt_provmod_t *prov; 683 char path[PATH_MAX]; 684 struct dirent *dp, *ep; 685 DIR *dirp; 686 int fd; 687 688 if ((dirp = opendir(_dtrace_provdir)) == NULL) 689 return; /* failed to open directory; just skip it */ 690 691 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1); 692 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1); 693 694 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) { 695 if (dp->d_name[0] == '.') 696 continue; /* skip "." and ".." */ 697 698 if (dfp->df_ents == dfp->df_size) { 699 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 700 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 701 702 if (fds == NULL) 703 break; /* skip the rest of this directory */ 704 705 dfp->df_fds = fds; 706 dfp->df_size = size; 707 } 708 709 (void) snprintf(path, sizeof (path), "%s/%s", 710 _dtrace_provdir, dp->d_name); 711 712 if ((fd = open(path, O_RDONLY)) == -1) 713 continue; /* failed to open driver; just skip it */ 714 715 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 716 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) { 717 free(prov); 718 (void) close(fd); 719 break; 720 } 721 722 (void) strcpy(prov->dp_name, dp->d_name); 723 prov->dp_next = *provmod; 724 *provmod = prov; 725 726 dt_dprintf("opened provider %s\n", dp->d_name); 727 dfp->df_fds[dfp->df_ents++] = fd; 728 } 729 730 (void) closedir(dirp); 731 } 732 733 static void 734 dt_provmod_destroy(dt_provmod_t **provmod) 735 { 736 dt_provmod_t *next, *current; 737 738 for (current = *provmod; current != NULL; current = next) { 739 next = current->dp_next; 740 free(current->dp_name); 741 free(current); 742 } 743 744 *provmod = NULL; 745 } 746 747 static const char * 748 dt_get_sysinfo(int cmd, char *buf, size_t len) 749 { 750 ssize_t rv = sysinfo(cmd, buf, len); 751 char *p = buf; 752 753 if (rv < 0 || rv > len) 754 (void) snprintf(buf, len, "%s", "Unknown"); 755 756 while ((p = strchr(p, '.')) != NULL) 757 *p++ = '_'; 758 759 return (buf); 760 } 761 762 static dtrace_hdl_t * 763 dt_vopen(int version, int flags, int *errp, 764 const dtrace_vector_t *vector, void *arg) 765 { 766 dtrace_hdl_t *dtp = NULL; 767 int dtfd = -1, ftfd = -1, fterr = 0; 768 dtrace_prog_t *pgp; 769 dt_module_t *dmp; 770 dt_provmod_t *provmod = NULL; 771 int i, err; 772 struct rlimit rl; 773 774 const dt_intrinsic_t *dinp; 775 const dt_typedef_t *dtyp; 776 const dt_ident_t *idp; 777 778 dtrace_typeinfo_t dtt; 779 ctf_funcinfo_t ctc; 780 ctf_arinfo_t ctr; 781 782 dt_fdlist_t df = { NULL, 0, 0 }; 783 784 char isadef[32], utsdef[32]; 785 char s1[64], s2[64]; 786 787 if (version <= 0) 788 return (set_open_errno(dtp, errp, EINVAL)); 789 790 if (version > DTRACE_VERSION) 791 return (set_open_errno(dtp, errp, EDT_VERSION)); 792 793 if (version < DTRACE_VERSION) { 794 /* 795 * Currently, increasing the library version number is used to 796 * denote a binary incompatible change. That is, a consumer 797 * of the library cannot run on a version of the library with 798 * a higher DTRACE_VERSION number than the consumer compiled 799 * against. Once the library API has been committed to, 800 * backwards binary compatibility will be required; at that 801 * time, this check should change to return EDT_OVERSION only 802 * if the specified version number is less than the version 803 * number at the time of interface commitment. 804 */ 805 return (set_open_errno(dtp, errp, EDT_OVERSION)); 806 } 807 808 if (flags & ~DTRACE_O_MASK) 809 return (set_open_errno(dtp, errp, EINVAL)); 810 811 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32)) 812 return (set_open_errno(dtp, errp, EINVAL)); 813 814 if (vector == NULL && arg != NULL) 815 return (set_open_errno(dtp, errp, EINVAL)); 816 817 if (elf_version(EV_CURRENT) == EV_NONE) 818 return (set_open_errno(dtp, errp, EDT_ELFVERSION)); 819 820 if (vector != NULL || (flags & DTRACE_O_NODEV)) 821 goto alloc; /* do not attempt to open dtrace device */ 822 823 /* 824 * Before we get going, crank our limit on file descriptors up to the 825 * hard limit. This is to allow for the fact that libproc keeps file 826 * descriptors to objects open for the lifetime of the proc handle; 827 * without raising our hard limit, we would have an acceptably small 828 * bound on the number of processes that we could concurrently 829 * instrument with the pid provider. 830 */ 831 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) { 832 rl.rlim_cur = rl.rlim_max; 833 (void) setrlimit(RLIMIT_NOFILE, &rl); 834 } 835 836 /* 837 * Get the device path of each of the providers. We hold them open 838 * in the df.df_fds list until we open the DTrace driver itself, 839 * allowing us to see all of the probes provided on this system. Once 840 * we have the DTrace driver open, we can safely close all the providers 841 * now that they have registered with the framework. 842 */ 843 dt_provmod_open(&provmod, &df); 844 845 dtfd = open("/dev/dtrace/dtrace", O_RDWR); 846 err = errno; /* save errno from opening dtfd */ 847 848 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR); 849 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */ 850 851 while (df.df_ents-- != 0) 852 (void) close(df.df_fds[df.df_ents]); 853 854 free(df.df_fds); 855 856 /* 857 * If we failed to open the dtrace device, fail dtrace_open(). 858 * We convert some kernel errnos to custom libdtrace errnos to 859 * improve the resulting message from the usual strerror(). 860 */ 861 if (dtfd == -1) { 862 dt_provmod_destroy(&provmod); 863 switch (err) { 864 case ENOENT: 865 err = EDT_NOENT; 866 break; 867 case EBUSY: 868 err = EDT_BUSY; 869 break; 870 case EACCES: 871 err = EDT_ACCESS; 872 break; 873 } 874 return (set_open_errno(dtp, errp, err)); 875 } 876 877 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC); 878 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC); 879 880 alloc: 881 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL) 882 return (set_open_errno(dtp, errp, EDT_NOMEM)); 883 884 bzero(dtp, sizeof (dtrace_hdl_t)); 885 dtp->dt_oflags = flags; 886 dtp->dt_prcmode = DT_PROC_STOP_PREINIT; 887 dtp->dt_linkmode = DT_LINK_KERNEL; 888 dtp->dt_linktype = DT_LTYP_ELF; 889 dtp->dt_xlatemode = DT_XL_STATIC; 890 dtp->dt_stdcmode = DT_STDC_XA; 891 dtp->dt_version = version; 892 dtp->dt_fd = dtfd; 893 dtp->dt_ftfd = ftfd; 894 dtp->dt_fterr = fterr; 895 dtp->dt_cdefs_fd = -1; 896 dtp->dt_ddefs_fd = -1; 897 dtp->dt_stdout_fd = -1; 898 dtp->dt_modbuckets = _dtrace_strbuckets; 899 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *)); 900 dtp->dt_provbuckets = _dtrace_strbuckets; 901 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *)); 902 dt_proc_hash_create(dtp); 903 dtp->dt_vmax = DT_VERS_LATEST; 904 dtp->dt_cpp_path = strdup(_dtrace_defcpp); 905 dtp->dt_cpp_argv = malloc(sizeof (char *)); 906 dtp->dt_cpp_argc = 1; 907 dtp->dt_cpp_args = 1; 908 dtp->dt_ld_path = strdup(_dtrace_defld); 909 dtp->dt_provmod = provmod; 910 dtp->dt_vector = vector; 911 dtp->dt_varg = arg; 912 dt_dof_init(dtp); 913 (void) uname(&dtp->dt_uts); 914 915 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL || 916 dtp->dt_procs == NULL || dtp->dt_ld_path == NULL || 917 dtp->dt_cpp_path == NULL || dtp->dt_cpp_argv == NULL) 918 return (set_open_errno(dtp, errp, EDT_NOMEM)); 919 920 for (i = 0; i < DTRACEOPT_MAX; i++) 921 dtp->dt_options[i] = DTRACEOPT_UNSET; 922 923 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path); 924 925 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u", 926 (uint_t)(sizeof (void *) * NBBY)); 927 928 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s", 929 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)), 930 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2))); 931 932 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL || 933 dt_cpp_add_arg(dtp, "-D__unix") == NULL || 934 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL || 935 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL || 936 dt_cpp_add_arg(dtp, isadef) == NULL || 937 dt_cpp_add_arg(dtp, utsdef) == NULL) 938 return (set_open_errno(dtp, errp, EDT_NOMEM)); 939 940 if (flags & DTRACE_O_NODEV) 941 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf)); 942 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0) 943 return (set_open_errno(dtp, errp, errno)); 944 945 if (flags & DTRACE_O_LP64) 946 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64; 947 else if (flags & DTRACE_O_ILP32) 948 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32; 949 950 #ifdef __sparc 951 /* 952 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h> 953 * and __sparcv9 is defined if we are doing a 64-bit compile. 954 */ 955 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL) 956 return (set_open_errno(dtp, errp, EDT_NOMEM)); 957 958 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 && 959 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL) 960 return (set_open_errno(dtp, errp, EDT_NOMEM)); 961 #endif 962 963 #ifdef __x86 964 /* 965 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit 966 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC, 967 * they are defined exclusive of one another (see PSARC 2004/619). 968 */ 969 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 970 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL) 971 return (set_open_errno(dtp, errp, EDT_NOMEM)); 972 } else { 973 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL) 974 return (set_open_errno(dtp, errp, EDT_NOMEM)); 975 } 976 #endif 977 978 if (dtp->dt_conf.dtc_difversion < DIF_VERSION) 979 return (set_open_errno(dtp, errp, EDT_DIFVERS)); 980 981 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) 982 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32)); 983 else 984 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64)); 985 986 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX); 987 dtp->dt_aggs = dt_idhash_create("aggregation", NULL, 988 DTRACE_AGGVARIDNONE + 1, UINT_MAX); 989 990 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals, 991 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 992 993 dtp->dt_tls = dt_idhash_create("thread local", NULL, 994 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 995 996 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL || 997 dtp->dt_globals == NULL || dtp->dt_tls == NULL) 998 return (set_open_errno(dtp, errp, EDT_NOMEM)); 999 1000 /* 1001 * Populate the dt_macros identifier hash table by hand: we can't use 1002 * the dt_idhash_populate() mechanism because we're not yet compiling 1003 * and dtrace_update() needs to immediately reference these idents. 1004 */ 1005 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) { 1006 if (dt_idhash_insert(dtp->dt_macros, idp->di_name, 1007 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr, 1008 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw, 1009 idp->di_iarg, 0) == NULL) 1010 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1011 } 1012 1013 /* 1014 * Update the module list using /system/object and load the values for 1015 * the macro variable definitions according to the current process. 1016 */ 1017 dtrace_update(dtp); 1018 1019 /* 1020 * Select the intrinsics and typedefs we want based on the data model. 1021 * The intrinsics are under "C". The typedefs are added under "D". 1022 */ 1023 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) { 1024 dinp = _dtrace_intrinsics_32; 1025 dtyp = _dtrace_typedefs_32; 1026 } else { 1027 dinp = _dtrace_intrinsics_64; 1028 dtyp = _dtrace_typedefs_64; 1029 } 1030 1031 /* 1032 * Create a dynamic CTF container under the "C" scope for intrinsic 1033 * types and types defined in ANSI-C header files that are included. 1034 */ 1035 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL) 1036 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1037 1038 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1039 return (set_open_errno(dtp, errp, EDT_CTF)); 1040 1041 dt_dprintf("created CTF container for %s (%p)\n", 1042 dmp->dm_name, (void *)dmp->dm_ctfp); 1043 1044 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1045 ctf_setspecific(dmp->dm_ctfp, dmp); 1046 1047 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1048 dmp->dm_modid = -1; /* no module ID */ 1049 1050 /* 1051 * Fill the dynamic "C" CTF container with all of the intrinsic 1052 * integer and floating-point types appropriate for this data model. 1053 */ 1054 for (; dinp->din_name != NULL; dinp++) { 1055 if (dinp->din_kind == CTF_K_INTEGER) { 1056 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT, 1057 dinp->din_name, &dinp->din_data); 1058 } else { 1059 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT, 1060 dinp->din_name, &dinp->din_data); 1061 } 1062 1063 if (err == CTF_ERR) { 1064 dt_dprintf("failed to add %s to C container: %s\n", 1065 dinp->din_name, ctf_errmsg( 1066 ctf_errno(dmp->dm_ctfp))); 1067 return (set_open_errno(dtp, errp, EDT_CTF)); 1068 } 1069 } 1070 1071 if (ctf_update(dmp->dm_ctfp) != 0) { 1072 dt_dprintf("failed to update C container: %s\n", 1073 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1074 return (set_open_errno(dtp, errp, EDT_CTF)); 1075 } 1076 1077 /* 1078 * Add intrinsic pointer types that are needed to initialize printf 1079 * format dictionary types (see table in dt_printf.c). 1080 */ 1081 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1082 ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1083 1084 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1085 ctf_lookup_by_name(dmp->dm_ctfp, "char")); 1086 1087 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1088 ctf_lookup_by_name(dmp->dm_ctfp, "int")); 1089 1090 if (ctf_update(dmp->dm_ctfp) != 0) { 1091 dt_dprintf("failed to update C container: %s\n", 1092 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1093 return (set_open_errno(dtp, errp, EDT_CTF)); 1094 } 1095 1096 /* 1097 * Create a dynamic CTF container under the "D" scope for types that 1098 * are defined by the D program itself or on-the-fly by the D compiler. 1099 * The "D" CTF container is a child of the "C" CTF container. 1100 */ 1101 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL) 1102 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1103 1104 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1105 return (set_open_errno(dtp, errp, EDT_CTF)); 1106 1107 dt_dprintf("created CTF container for %s (%p)\n", 1108 dmp->dm_name, (void *)dmp->dm_ctfp); 1109 1110 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1111 ctf_setspecific(dmp->dm_ctfp, dmp); 1112 1113 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1114 dmp->dm_modid = -1; /* no module ID */ 1115 1116 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) { 1117 dt_dprintf("failed to import D parent container: %s\n", 1118 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1119 return (set_open_errno(dtp, errp, EDT_CTF)); 1120 } 1121 1122 /* 1123 * Fill the dynamic "D" CTF container with all of the built-in typedefs 1124 * that we need to use for our D variable and function definitions. 1125 * This ensures that basic inttypes.h names are always available to us. 1126 */ 1127 for (; dtyp->dty_src != NULL; dtyp++) { 1128 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1129 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp, 1130 dtyp->dty_src)) == CTF_ERR) { 1131 dt_dprintf("failed to add typedef %s %s to D " 1132 "container: %s", dtyp->dty_src, dtyp->dty_dst, 1133 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1134 return (set_open_errno(dtp, errp, EDT_CTF)); 1135 } 1136 } 1137 1138 /* 1139 * Insert a CTF ID corresponding to a pointer to a type of kind 1140 * CTF_K_FUNCTION we can use in the compiler for function pointers. 1141 * CTF treats all function pointers as "int (*)()" so we only need one. 1142 */ 1143 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int"); 1144 ctc.ctc_argc = 0; 1145 ctc.ctc_flags = 0; 1146 1147 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp, 1148 CTF_ADD_ROOT, &ctc, NULL); 1149 1150 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp, 1151 CTF_ADD_ROOT, dtp->dt_type_func); 1152 1153 /* 1154 * We also insert CTF definitions for the special D intrinsic types 1155 * string and <DYN> into the D container. The string type is added 1156 * as a typedef of char[n]. The <DYN> type is an alias for void. 1157 * We compare types to these special CTF ids throughout the compiler. 1158 */ 1159 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char"); 1160 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long"); 1161 ctr.ctr_nelems = _dtrace_strsize; 1162 1163 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1164 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr)); 1165 1166 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1167 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1168 1169 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1170 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1171 1172 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1173 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1174 1175 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1176 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1177 1178 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR || 1179 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR || 1180 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR || 1181 dtp->dt_type_usymaddr == CTF_ERR) { 1182 dt_dprintf("failed to add intrinsic to D container: %s\n", 1183 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1184 return (set_open_errno(dtp, errp, EDT_CTF)); 1185 } 1186 1187 if (ctf_update(dmp->dm_ctfp) != 0) { 1188 dt_dprintf("failed update D container: %s\n", 1189 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1190 return (set_open_errno(dtp, errp, EDT_CTF)); 1191 } 1192 1193 /* 1194 * Initialize the integer description table used to convert integer 1195 * constants to the appropriate types. Refer to the comments above 1196 * dt_node_int() for a complete description of how this table is used. 1197 */ 1198 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) { 1199 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY, 1200 dtp->dt_ints[i].did_name, &dtt) != 0) { 1201 dt_dprintf("failed to lookup integer type %s: %s\n", 1202 dtp->dt_ints[i].did_name, 1203 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1204 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1205 } 1206 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp; 1207 dtp->dt_ints[i].did_type = dtt.dtt_type; 1208 } 1209 1210 /* 1211 * Now that we've created the "C" and "D" containers, move them to the 1212 * start of the module list so that these types and symbols are found 1213 * first (for stability) when iterating through the module list. 1214 */ 1215 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs); 1216 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs); 1217 1218 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs); 1219 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs); 1220 1221 if (dt_pfdict_create(dtp) == -1) 1222 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1223 1224 /* 1225 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default 1226 * because without /dev/dtrace open, we will not be able to load the 1227 * names and attributes of any providers or probes from the kernel. 1228 */ 1229 if (flags & DTRACE_O_NODEV) 1230 dtp->dt_cflags |= DTRACE_C_ZDEFS; 1231 1232 /* 1233 * Load hard-wired inlines into the definition cache by calling the 1234 * compiler on the raw definition string defined above. 1235 */ 1236 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire, 1237 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) { 1238 dt_dprintf("failed to load hard-wired definitions: %s\n", 1239 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1240 return (set_open_errno(dtp, errp, EDT_HARDWIRE)); 1241 } 1242 1243 dt_program_destroy(dtp, pgp); 1244 1245 /* 1246 * Set up the default DTrace library path. Once set, the next call to 1247 * dt_compile() will compile all the libraries. We intentionally defer 1248 * library processing to improve overhead for clients that don't ever 1249 * compile, and to provide better error reporting (because the full 1250 * reporting of compiler errors requires dtrace_open() to succeed). 1251 */ 1252 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0) 1253 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1254 1255 return (dtp); 1256 } 1257 1258 dtrace_hdl_t * 1259 dtrace_open(int version, int flags, int *errp) 1260 { 1261 return (dt_vopen(version, flags, errp, NULL, NULL)); 1262 } 1263 1264 dtrace_hdl_t * 1265 dtrace_vopen(int version, int flags, int *errp, 1266 const dtrace_vector_t *vector, void *arg) 1267 { 1268 return (dt_vopen(version, flags, errp, vector, arg)); 1269 } 1270 1271 void 1272 dtrace_close(dtrace_hdl_t *dtp) 1273 { 1274 dt_ident_t *idp, *ndp; 1275 dt_module_t *dmp; 1276 dt_provider_t *pvp; 1277 dtrace_prog_t *pgp; 1278 dt_xlator_t *dxp; 1279 dt_dirpath_t *dirp; 1280 int i; 1281 1282 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL) 1283 dt_program_destroy(dtp, pgp); 1284 1285 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL) 1286 dt_xlator_destroy(dtp, dxp); 1287 1288 dt_free(dtp, dtp->dt_xlatormap); 1289 1290 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) { 1291 ndp = idp->di_next; 1292 dt_ident_destroy(idp); 1293 } 1294 1295 if (dtp->dt_macros != NULL) 1296 dt_idhash_destroy(dtp->dt_macros); 1297 if (dtp->dt_aggs != NULL) 1298 dt_idhash_destroy(dtp->dt_aggs); 1299 if (dtp->dt_globals != NULL) 1300 dt_idhash_destroy(dtp->dt_globals); 1301 if (dtp->dt_tls != NULL) 1302 dt_idhash_destroy(dtp->dt_tls); 1303 1304 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL) 1305 dt_module_destroy(dtp, dmp); 1306 1307 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL) 1308 dt_provider_destroy(dtp, pvp); 1309 1310 if (dtp->dt_procs != NULL) 1311 dt_proc_hash_destroy(dtp); 1312 1313 if (dtp->dt_fd != -1) 1314 (void) close(dtp->dt_fd); 1315 if (dtp->dt_ftfd != -1) 1316 (void) close(dtp->dt_ftfd); 1317 if (dtp->dt_cdefs_fd != -1) 1318 (void) close(dtp->dt_cdefs_fd); 1319 if (dtp->dt_ddefs_fd != -1) 1320 (void) close(dtp->dt_ddefs_fd); 1321 if (dtp->dt_stdout_fd != -1) 1322 (void) close(dtp->dt_stdout_fd); 1323 1324 dt_epid_destroy(dtp); 1325 dt_aggid_destroy(dtp); 1326 dt_format_destroy(dtp); 1327 dt_buffered_destroy(dtp); 1328 dt_aggregate_destroy(dtp); 1329 free(dtp->dt_buf.dtbd_data); 1330 dt_pfdict_destroy(dtp); 1331 dt_provmod_destroy(&dtp->dt_provmod); 1332 dt_dof_fini(dtp); 1333 1334 for (i = 1; i < dtp->dt_cpp_argc; i++) 1335 free(dtp->dt_cpp_argv[i]); 1336 1337 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) { 1338 dt_list_delete(&dtp->dt_lib_path, dirp); 1339 free(dirp->dir_path); 1340 free(dirp); 1341 } 1342 1343 free(dtp->dt_cpp_argv); 1344 free(dtp->dt_cpp_path); 1345 free(dtp->dt_ld_path); 1346 1347 free(dtp->dt_mods); 1348 free(dtp->dt_provs); 1349 free(dtp); 1350 } 1351 1352 int 1353 dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods) 1354 { 1355 dt_provmod_t *prov; 1356 int i = 0; 1357 1358 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) { 1359 if (i < nmods) 1360 mods[i] = prov->dp_name; 1361 } 1362 1363 return (i); 1364 } 1365 1366 int 1367 dtrace_ctlfd(dtrace_hdl_t *dtp) 1368 { 1369 return (dtp->dt_fd); 1370 } 1371