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