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_1_5 DT_VERSION_NUMBER(1, 5, 0) 105 #define DT_VERS_LATEST DT_VERS_1_5 106 #define DT_VERS_STRING "Sun D 1.5" 107 108 const dt_version_t _dtrace_versions[] = { 109 DT_VERS_1_0, /* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */ 110 DT_VERS_1_1, /* D API 1.1.0 Solaris Express 6/05 */ 111 DT_VERS_1_2, /* D API 1.2.0 Solaris 10 Update 1 */ 112 DT_VERS_1_2_1, /* D API 1.2.1 Solaris Express 4/06 */ 113 DT_VERS_1_2_2, /* D API 1.2.2 Solaris Express 6/06 */ 114 DT_VERS_1_3, /* D API 1.3 Solaris Express 10/06 */ 115 DT_VERS_1_4, /* D API 1.4 Solaris Express 2/07 */ 116 DT_VERS_1_4_1, /* D API 1.4.1 Solaris Express 4/07 */ 117 DT_VERS_1_5, /* D API 1.5 Solaris Express 7/07 */ 118 0 119 }; 120 121 /* 122 * Table of global identifiers. This is used to populate the global identifier 123 * hash when a new dtrace client open occurs. For more info see dt_ident.h. 124 * The global identifiers that represent functions use the dt_idops_func ops 125 * and specify the private data pointer as a prototype string which is parsed 126 * when the identifier is first encountered. These prototypes look like ANSI 127 * C function prototypes except that the special symbol "@" can be used as a 128 * wildcard to represent a single parameter of any type (i.e. any dt_node_t). 129 * The standard "..." notation can also be used to represent varargs. An empty 130 * parameter list is taken to mean void (that is, no arguments are permitted). 131 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional 132 * argument. 133 */ 134 static const dt_ident_t _dtrace_globals[] = { 135 { "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0, 136 &dt_idops_func, "void *(size_t)" }, 137 { "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0, 138 &dt_idops_type, "int64_t" }, 139 { "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0, 140 &dt_idops_type, "int64_t" }, 141 { "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0, 142 &dt_idops_type, "int64_t" }, 143 { "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0, 144 &dt_idops_type, "int64_t" }, 145 { "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0, 146 &dt_idops_type, "int64_t" }, 147 { "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0, 148 &dt_idops_type, "int64_t" }, 149 { "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0, 150 &dt_idops_type, "int64_t" }, 151 { "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0, 152 &dt_idops_type, "int64_t" }, 153 { "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0, 154 &dt_idops_type, "int64_t" }, 155 { "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0, 156 &dt_idops_type, "int64_t" }, 157 { "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0, 158 &dt_idops_args, NULL }, 159 { "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0, 160 &dt_idops_func, "void(@)" }, 161 { "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0, 162 &dt_idops_func, "string(const char *)" }, 163 { "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0, 164 &dt_idops_func, "void(void *, void *, size_t)" }, 165 { "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT, 166 DT_ATTR_STABCMN, DT_VERS_1_0, 167 &dt_idops_func, "void()" }, 168 { "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0, 169 &dt_idops_type, "uintptr_t" }, 170 { "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0, 171 &dt_idops_func, "void(int)" }, 172 { "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN, 173 DT_VERS_1_0, &dt_idops_func, "string(const char *)" }, 174 { "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0, 175 &dt_idops_func, "void(...)" }, 176 { "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0, 177 &dt_idops_func, "void(int)" }, 178 { "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0, 179 &dt_idops_func, "void *(uintptr_t, size_t)" }, 180 { "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR, 181 DT_ATTR_STABCMN, DT_VERS_1_0, 182 &dt_idops_func, "string(uintptr_t, [size_t])" }, 183 { "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN, 184 DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" }, 185 { "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0, 186 &dt_idops_func, "void(void *, uintptr_t, size_t)" }, 187 { "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR, 188 DT_ATTR_STABCMN, DT_VERS_1_0, 189 &dt_idops_func, "void(char *, uintptr_t, size_t)" }, 190 { "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0, 191 &dt_idops_func, "void()" }, 192 { "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD, 193 { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE, 194 DTRACE_CLASS_COMMON }, DT_VERS_1_0, 195 &dt_idops_type, "genunix`kthread_t *" }, 196 { "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME, 197 DT_ATTR_EVOLCMN, DT_VERS_1_0, 198 &dt_idops_func, "string(void *, int64_t)" }, 199 { "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN, 200 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 201 { "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0, 202 &dt_idops_func, "string(const char *)" }, 203 { "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0, 204 &dt_idops_func, "void(int)" }, 205 { "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0, 206 &dt_idops_type, "uint_t" }, 207 { "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0, 208 &dt_idops_type, "int" }, 209 { "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME, 210 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 211 { "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0, 212 &dt_idops_func, "void(int)" }, 213 { "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN, 214 DT_VERS_1_1, &dt_idops_func, "void(@, ...)" }, 215 { "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN, 216 DT_VERS_1_0, &dt_idops_func, "void()" }, 217 { "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 218 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 219 { "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR, 220 DT_ATTR_EVOLCMN, DT_VERS_1_0, 221 &dt_idops_func, "genunix`major_t(genunix`dev_t)" }, 222 { "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR, 223 DT_ATTR_EVOLCMN, DT_VERS_1_0, 224 &dt_idops_func, "genunix`minor_t(genunix`dev_t)" }, 225 { "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 226 &dt_idops_func, "uint32_t(uint32_t)" }, 227 { "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 228 &dt_idops_func, "uint64_t(uint64_t)" }, 229 { "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 230 &dt_idops_func, "uint16_t(uint16_t)" }, 231 { "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0, 232 &dt_idops_type, "gid_t" }, 233 { "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0, 234 &dt_idops_type, "uint_t" }, 235 { "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 236 &dt_idops_func, "int(const char *, const char *, [int])" }, 237 { "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN, 238 DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" }, 239 { "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN, 240 DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" }, 241 { "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN, 242 DT_VERS_1_5, &dt_idops_func, "string(int, void *)" }, 243 { "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0, 244 &dt_idops_type, "uint_t" }, 245 { "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 246 &dt_idops_func, "stack(...)" }, 247 { "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0, 248 &dt_idops_func, "string(int64_t)" }, 249 { "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE, 250 DT_ATTR_STABCMN, DT_VERS_1_0, 251 &dt_idops_func, "void(@, int32_t, int32_t, ...)" }, 252 { "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0, 253 &dt_idops_func, "void(@)" }, 254 { "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0, 255 &dt_idops_func, "void(@)" }, 256 { "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN, 257 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 258 { "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE, 259 DT_ATTR_STABCMN, DT_VERS_1_0, 260 &dt_idops_func, "size_t(mblk_t *)" }, 261 { "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE, 262 DT_ATTR_STABCMN, DT_VERS_1_0, 263 &dt_idops_func, "size_t(mblk_t *)" }, 264 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 265 DT_ATTR_EVOLCMN, DT_VERS_1_0, 266 &dt_idops_func, "int(genunix`kmutex_t *)" }, 267 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 268 DT_ATTR_EVOLCMN, DT_VERS_1_0, 269 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" }, 270 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 271 DT_ATTR_EVOLCMN, DT_VERS_1_0, 272 &dt_idops_func, "int(genunix`kmutex_t *)" }, 273 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 274 DT_ATTR_EVOLCMN, DT_VERS_1_0, 275 &dt_idops_func, "int(genunix`kmutex_t *)" }, 276 { "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 277 &dt_idops_func, "uint32_t(uint32_t)" }, 278 { "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 279 &dt_idops_func, "uint64_t(uint64_t)" }, 280 { "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 281 &dt_idops_func, "uint16_t(uint16_t)" }, 282 { "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN, 283 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 284 { "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0, 285 &dt_idops_func, "void()" }, 286 { "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0, 287 &dt_idops_type, "pid_t" }, 288 { "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0, 289 &dt_idops_type, "pid_t" }, 290 { "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0, 291 &dt_idops_func, "void(@, ...)" }, 292 { "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0, 293 &dt_idops_func, "void(@, ...)" }, 294 { "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC, 295 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 296 { "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD, 297 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 298 { "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME, 299 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 300 { "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV, 301 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 302 { "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF, 303 DT_ATTR_STABCMN, DT_VERS_1_0, 304 &dt_idops_func, "int(pid_t)" }, 305 { "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE, 306 DT_ATTR_STABCMN, DT_VERS_1_0, 307 &dt_idops_func, "void(@, ...)" }, 308 { "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0, 309 &dt_idops_func, "void(int)" }, 310 { "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0, 311 &dt_idops_func, "int()" }, 312 { "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 313 &dt_idops_func, "int(const char *, const char *, [int])" }, 314 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 315 DT_ATTR_EVOLCMN, DT_VERS_1_0, 316 &dt_idops_func, "int(genunix`krwlock_t *)" }, 317 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 318 DT_ATTR_EVOLCMN, DT_VERS_1_0, 319 &dt_idops_func, "int(genunix`krwlock_t *)" }, 320 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 321 DT_ATTR_EVOLCMN, DT_VERS_1_0, 322 &dt_idops_func, "int(genunix`krwlock_t *)" }, 323 { "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 324 &dt_idops_type, "void" }, 325 { "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN, 326 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" }, 327 { "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE, 328 DT_ATTR_STABCMN, DT_VERS_1_0, 329 &dt_idops_func, "void(int)" }, 330 { "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION, 331 DT_ATTR_STABCMN, DT_VERS_1_0, 332 &dt_idops_func, "int()" }, 333 { "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0, 334 &dt_idops_func, "stack(...)" }, 335 { "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH, 336 DT_ATTR_STABCMN, DT_VERS_1_0, 337 &dt_idops_type, "uint32_t" }, 338 { "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0, 339 &dt_idops_func, "void()" }, 340 { "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 341 &dt_idops_func, "string(const char *, char)" }, 342 { "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0, 343 &dt_idops_func, "size_t(const char *)" }, 344 { "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0, 345 &dt_idops_func, "string(const char *, const char *)" }, 346 { "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 347 &dt_idops_func, "string(const char *, char)" }, 348 { "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 349 &dt_idops_func, "string(const char *, const char *)" }, 350 { "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1, 351 &dt_idops_func, "string(const char *, const char *)" }, 352 { "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 353 &dt_idops_func, "string(const char *, int, [int])" }, 354 { "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0, 355 &dt_idops_func, "void(@)" }, 356 { "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 357 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 358 { "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0, 359 &dt_idops_func, "void(@, ...)" }, 360 { "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 361 &dt_idops_type, "void" }, 362 { "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0, 363 &dt_idops_type, "id_t" }, 364 { "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP, 365 DT_ATTR_STABCMN, DT_VERS_1_0, 366 &dt_idops_type, "uint64_t" }, 367 { "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0, 368 &dt_idops_func, "void(@)" }, 369 { "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM, 370 DT_ATTR_STABCMN, DT_VERS_1_0, 371 &dt_idops_func, "void(@, size_t)" }, 372 { "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN, 373 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 374 { "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN, 375 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 376 { "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN, 377 DT_VERS_1_2, &dt_idops_type, "uint64_t" }, 378 { "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 379 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 380 { "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0, 381 &dt_idops_type, "uid_t" }, 382 { "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN, 383 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 384 { "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0, 385 &dt_idops_regs, NULL }, 386 { "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 387 &dt_idops_func, "stack(...)" }, 388 { "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH, 389 DT_ATTR_STABCMN, DT_VERS_1_2, 390 &dt_idops_type, "uint32_t" }, 391 { "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 392 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 393 { "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP, 394 DT_ATTR_STABCMN, DT_VERS_1_0, 395 &dt_idops_type, "uint64_t" }, 396 { "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP, 397 DT_ATTR_STABCMN, DT_VERS_1_0, 398 &dt_idops_type, "int64_t" }, 399 { "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME, 400 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 401 { NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL } 402 }; 403 404 /* 405 * Tables of ILP32 intrinsic integer and floating-point type templates to use 406 * to populate the dynamic "C" CTF type container. 407 */ 408 static const dt_intrinsic_t _dtrace_intrinsics_32[] = { 409 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 410 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 411 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 412 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 413 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 414 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 415 { "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 416 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 417 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 418 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 419 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 420 { "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 421 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 422 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 423 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 424 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 425 { "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER }, 426 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 427 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 428 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 429 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 430 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 431 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 432 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 433 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 434 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 435 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 436 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 437 { NULL, { 0, 0, 0 }, 0 } 438 }; 439 440 /* 441 * Tables of LP64 intrinsic integer and floating-point type templates to use 442 * to populate the dynamic "C" CTF type container. 443 */ 444 static const dt_intrinsic_t _dtrace_intrinsics_64[] = { 445 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 446 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 447 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 448 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 449 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 450 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 451 { "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 452 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 453 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 454 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 455 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 456 { "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 457 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 458 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 459 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 460 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 461 { "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER }, 462 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 463 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 464 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 465 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 466 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 467 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 468 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 469 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 470 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 471 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 472 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 473 { NULL, { 0, 0, 0 }, 0 } 474 }; 475 476 /* 477 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container. 478 * These aliases ensure that D definitions can use typical <sys/types.h> names. 479 */ 480 static const dt_typedef_t _dtrace_typedefs_32[] = { 481 { "char", "int8_t" }, 482 { "short", "int16_t" }, 483 { "int", "int32_t" }, 484 { "long long", "int64_t" }, 485 { "int", "intptr_t" }, 486 { "int", "ssize_t" }, 487 { "unsigned char", "uint8_t" }, 488 { "unsigned short", "uint16_t" }, 489 { "unsigned", "uint32_t" }, 490 { "unsigned long long", "uint64_t" }, 491 { "unsigned char", "uchar_t" }, 492 { "unsigned short", "ushort_t" }, 493 { "unsigned", "uint_t" }, 494 { "unsigned long", "ulong_t" }, 495 { "unsigned long long", "u_longlong_t" }, 496 { "int", "ptrdiff_t" }, 497 { "unsigned", "uintptr_t" }, 498 { "unsigned", "size_t" }, 499 { "long", "id_t" }, 500 { "long", "pid_t" }, 501 { NULL, NULL } 502 }; 503 504 /* 505 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container. 506 * These aliases ensure that D definitions can use typical <sys/types.h> names. 507 */ 508 static const dt_typedef_t _dtrace_typedefs_64[] = { 509 { "char", "int8_t" }, 510 { "short", "int16_t" }, 511 { "int", "int32_t" }, 512 { "long", "int64_t" }, 513 { "long", "intptr_t" }, 514 { "long", "ssize_t" }, 515 { "unsigned char", "uint8_t" }, 516 { "unsigned short", "uint16_t" }, 517 { "unsigned", "uint32_t" }, 518 { "unsigned long", "uint64_t" }, 519 { "unsigned char", "uchar_t" }, 520 { "unsigned short", "ushort_t" }, 521 { "unsigned", "uint_t" }, 522 { "unsigned long", "ulong_t" }, 523 { "unsigned long long", "u_longlong_t" }, 524 { "long", "ptrdiff_t" }, 525 { "unsigned long", "uintptr_t" }, 526 { "unsigned long", "size_t" }, 527 { "int", "id_t" }, 528 { "int", "pid_t" }, 529 { NULL, NULL } 530 }; 531 532 /* 533 * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[] 534 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 535 */ 536 static const dt_intdesc_t _dtrace_ints_32[] = { 537 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 538 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 539 { "long", NULL, CTF_ERR, 0x7fffffffULL }, 540 { "unsigned long", NULL, CTF_ERR, 0xffffffffULL }, 541 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 542 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 543 }; 544 545 /* 546 * Tables of LP64 integer type templates used to populate the dtp->dt_ints[] 547 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 548 */ 549 static const dt_intdesc_t _dtrace_ints_64[] = { 550 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 551 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 552 { "long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 553 { "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL }, 554 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 555 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 556 }; 557 558 /* 559 * Table of macro variable templates used to populate the macro identifier hash 560 * when a new dtrace client open occurs. Values are set by dtrace_update(). 561 */ 562 static const dt_ident_t _dtrace_macros[] = { 563 { "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 564 { "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 565 { "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 566 { "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 567 { "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 568 { "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 569 { "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 570 { "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 571 { "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 572 { "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 573 { "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 574 { NULL, 0, 0, 0, { 0, 0, 0 }, 0 } 575 }; 576 577 /* 578 * Hard-wired definition string to be compiled and cached every time a new 579 * DTrace library handle is initialized. This string should only be used to 580 * contain definitions that should be present regardless of DTRACE_O_NOLIBS. 581 */ 582 static const char _dtrace_hardwire[] = "\ 583 inline long NULL = 0; \n\ 584 #pragma D binding \"1.0\" NULL\n\ 585 "; 586 587 /* 588 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV. 589 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel. 590 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are 591 * relying on the fact that when running dtrace(1M), isaexec will invoke the 592 * binary with the same bitness as the kernel, which is what we want by default 593 * when generating our DIF. The user can override the choice using oflags. 594 */ 595 static const dtrace_conf_t _dtrace_conf = { 596 DIF_VERSION, /* dtc_difversion */ 597 DIF_DIR_NREGS, /* dtc_difintregs */ 598 DIF_DTR_NREGS, /* dtc_diftupregs */ 599 CTF_MODEL_NATIVE /* dtc_ctfmodel */ 600 }; 601 602 const dtrace_attribute_t _dtrace_maxattr = { 603 DTRACE_STABILITY_MAX, 604 DTRACE_STABILITY_MAX, 605 DTRACE_CLASS_MAX 606 }; 607 608 const dtrace_attribute_t _dtrace_defattr = { 609 DTRACE_STABILITY_STABLE, 610 DTRACE_STABILITY_STABLE, 611 DTRACE_CLASS_COMMON 612 }; 613 614 const dtrace_attribute_t _dtrace_symattr = { 615 DTRACE_STABILITY_PRIVATE, 616 DTRACE_STABILITY_PRIVATE, 617 DTRACE_CLASS_UNKNOWN 618 }; 619 620 const dtrace_attribute_t _dtrace_typattr = { 621 DTRACE_STABILITY_PRIVATE, 622 DTRACE_STABILITY_PRIVATE, 623 DTRACE_CLASS_UNKNOWN 624 }; 625 626 const dtrace_attribute_t _dtrace_prvattr = { 627 DTRACE_STABILITY_PRIVATE, 628 DTRACE_STABILITY_PRIVATE, 629 DTRACE_CLASS_UNKNOWN 630 }; 631 632 const dtrace_pattr_t _dtrace_prvdesc = { 633 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 634 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 635 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 636 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 637 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 638 }; 639 640 const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */ 641 const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */ 642 643 const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */ 644 const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */ 645 646 int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */ 647 int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */ 648 uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */ 649 uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */ 650 uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */ 651 uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */ 652 size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */ 653 int _dtrace_argmax = 32; /* default maximum number of probe arguments */ 654 655 int _dtrace_debug = 0; /* debug messages enabled (off) */ 656 const char *const _dtrace_version = DT_VERS_STRING; /* API version string */ 657 int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */ 658 659 typedef struct dt_fdlist { 660 int *df_fds; /* array of provider driver file descriptors */ 661 uint_t df_ents; /* number of valid elements in df_fds[] */ 662 uint_t df_size; /* size of df_fds[] */ 663 } dt_fdlist_t; 664 665 #pragma init(_dtrace_init) 666 void 667 _dtrace_init(void) 668 { 669 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL; 670 671 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) { 672 if (rd_init(_dtrace_rdvers) == RD_OK) 673 break; 674 } 675 } 676 677 static dtrace_hdl_t * 678 set_open_errno(dtrace_hdl_t *dtp, int *errp, int err) 679 { 680 if (dtp != NULL) 681 dtrace_close(dtp); 682 if (errp != NULL) 683 *errp = err; 684 return (NULL); 685 } 686 687 static void 688 dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp) 689 { 690 dt_provmod_t *prov; 691 char path[PATH_MAX]; 692 struct dirent *dp, *ep; 693 DIR *dirp; 694 int fd; 695 696 if ((dirp = opendir(_dtrace_provdir)) == NULL) 697 return; /* failed to open directory; just skip it */ 698 699 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1); 700 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1); 701 702 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) { 703 if (dp->d_name[0] == '.') 704 continue; /* skip "." and ".." */ 705 706 if (dfp->df_ents == dfp->df_size) { 707 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 708 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 709 710 if (fds == NULL) 711 break; /* skip the rest of this directory */ 712 713 dfp->df_fds = fds; 714 dfp->df_size = size; 715 } 716 717 (void) snprintf(path, sizeof (path), "%s/%s", 718 _dtrace_provdir, dp->d_name); 719 720 if ((fd = open(path, O_RDONLY)) == -1) 721 continue; /* failed to open driver; just skip it */ 722 723 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 724 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) { 725 free(prov); 726 (void) close(fd); 727 break; 728 } 729 730 (void) strcpy(prov->dp_name, dp->d_name); 731 prov->dp_next = *provmod; 732 *provmod = prov; 733 734 dt_dprintf("opened provider %s\n", dp->d_name); 735 dfp->df_fds[dfp->df_ents++] = fd; 736 } 737 738 (void) closedir(dirp); 739 } 740 741 static void 742 dt_provmod_destroy(dt_provmod_t **provmod) 743 { 744 dt_provmod_t *next, *current; 745 746 for (current = *provmod; current != NULL; current = next) { 747 next = current->dp_next; 748 free(current->dp_name); 749 free(current); 750 } 751 752 *provmod = NULL; 753 } 754 755 static const char * 756 dt_get_sysinfo(int cmd, char *buf, size_t len) 757 { 758 ssize_t rv = sysinfo(cmd, buf, len); 759 char *p = buf; 760 761 if (rv < 0 || rv > len) 762 (void) snprintf(buf, len, "%s", "Unknown"); 763 764 while ((p = strchr(p, '.')) != NULL) 765 *p++ = '_'; 766 767 return (buf); 768 } 769 770 static dtrace_hdl_t * 771 dt_vopen(int version, int flags, int *errp, 772 const dtrace_vector_t *vector, void *arg) 773 { 774 dtrace_hdl_t *dtp = NULL; 775 int dtfd = -1, ftfd = -1, fterr = 0; 776 dtrace_prog_t *pgp; 777 dt_module_t *dmp; 778 dt_provmod_t *provmod = NULL; 779 int i, err; 780 struct rlimit rl; 781 782 const dt_intrinsic_t *dinp; 783 const dt_typedef_t *dtyp; 784 const dt_ident_t *idp; 785 786 dtrace_typeinfo_t dtt; 787 ctf_funcinfo_t ctc; 788 ctf_arinfo_t ctr; 789 790 dt_fdlist_t df = { NULL, 0, 0 }; 791 792 char isadef[32], utsdef[32]; 793 char s1[64], s2[64]; 794 795 if (version <= 0) 796 return (set_open_errno(dtp, errp, EINVAL)); 797 798 if (version > DTRACE_VERSION) 799 return (set_open_errno(dtp, errp, EDT_VERSION)); 800 801 if (version < DTRACE_VERSION) { 802 /* 803 * Currently, increasing the library version number is used to 804 * denote a binary incompatible change. That is, a consumer 805 * of the library cannot run on a version of the library with 806 * a higher DTRACE_VERSION number than the consumer compiled 807 * against. Once the library API has been committed to, 808 * backwards binary compatibility will be required; at that 809 * time, this check should change to return EDT_OVERSION only 810 * if the specified version number is less than the version 811 * number at the time of interface commitment. 812 */ 813 return (set_open_errno(dtp, errp, EDT_OVERSION)); 814 } 815 816 if (flags & ~DTRACE_O_MASK) 817 return (set_open_errno(dtp, errp, EINVAL)); 818 819 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32)) 820 return (set_open_errno(dtp, errp, EINVAL)); 821 822 if (vector == NULL && arg != NULL) 823 return (set_open_errno(dtp, errp, EINVAL)); 824 825 if (elf_version(EV_CURRENT) == EV_NONE) 826 return (set_open_errno(dtp, errp, EDT_ELFVERSION)); 827 828 if (vector != NULL || (flags & DTRACE_O_NODEV)) 829 goto alloc; /* do not attempt to open dtrace device */ 830 831 /* 832 * Before we get going, crank our limit on file descriptors up to the 833 * hard limit. This is to allow for the fact that libproc keeps file 834 * descriptors to objects open for the lifetime of the proc handle; 835 * without raising our hard limit, we would have an acceptably small 836 * bound on the number of processes that we could concurrently 837 * instrument with the pid provider. 838 */ 839 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) { 840 rl.rlim_cur = rl.rlim_max; 841 (void) setrlimit(RLIMIT_NOFILE, &rl); 842 } 843 844 /* 845 * Get the device path of each of the providers. We hold them open 846 * in the df.df_fds list until we open the DTrace driver itself, 847 * allowing us to see all of the probes provided on this system. Once 848 * we have the DTrace driver open, we can safely close all the providers 849 * now that they have registered with the framework. 850 */ 851 dt_provmod_open(&provmod, &df); 852 853 dtfd = open("/dev/dtrace/dtrace", O_RDWR); 854 err = errno; /* save errno from opening dtfd */ 855 856 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR); 857 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */ 858 859 while (df.df_ents-- != 0) 860 (void) close(df.df_fds[df.df_ents]); 861 862 free(df.df_fds); 863 864 /* 865 * If we failed to open the dtrace device, fail dtrace_open(). 866 * We convert some kernel errnos to custom libdtrace errnos to 867 * improve the resulting message from the usual strerror(). 868 */ 869 if (dtfd == -1) { 870 dt_provmod_destroy(&provmod); 871 switch (err) { 872 case ENOENT: 873 err = EDT_NOENT; 874 break; 875 case EBUSY: 876 err = EDT_BUSY; 877 break; 878 case EACCES: 879 err = EDT_ACCESS; 880 break; 881 } 882 return (set_open_errno(dtp, errp, err)); 883 } 884 885 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC); 886 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC); 887 888 alloc: 889 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL) 890 return (set_open_errno(dtp, errp, EDT_NOMEM)); 891 892 bzero(dtp, sizeof (dtrace_hdl_t)); 893 dtp->dt_oflags = flags; 894 dtp->dt_prcmode = DT_PROC_STOP_PREINIT; 895 dtp->dt_linkmode = DT_LINK_KERNEL; 896 dtp->dt_linktype = DT_LTYP_ELF; 897 dtp->dt_xlatemode = DT_XL_STATIC; 898 dtp->dt_stdcmode = DT_STDC_XA; 899 dtp->dt_version = version; 900 dtp->dt_fd = dtfd; 901 dtp->dt_ftfd = ftfd; 902 dtp->dt_fterr = fterr; 903 dtp->dt_cdefs_fd = -1; 904 dtp->dt_ddefs_fd = -1; 905 dtp->dt_stdout_fd = -1; 906 dtp->dt_modbuckets = _dtrace_strbuckets; 907 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *)); 908 dtp->dt_provbuckets = _dtrace_strbuckets; 909 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *)); 910 dt_proc_hash_create(dtp); 911 dtp->dt_vmax = DT_VERS_LATEST; 912 dtp->dt_cpp_path = strdup(_dtrace_defcpp); 913 dtp->dt_cpp_argv = malloc(sizeof (char *)); 914 dtp->dt_cpp_argc = 1; 915 dtp->dt_cpp_args = 1; 916 dtp->dt_ld_path = strdup(_dtrace_defld); 917 dtp->dt_provmod = provmod; 918 dtp->dt_vector = vector; 919 dtp->dt_varg = arg; 920 dt_dof_init(dtp); 921 (void) uname(&dtp->dt_uts); 922 923 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL || 924 dtp->dt_procs == NULL || dtp->dt_ld_path == NULL || 925 dtp->dt_cpp_path == NULL || dtp->dt_cpp_argv == NULL) 926 return (set_open_errno(dtp, errp, EDT_NOMEM)); 927 928 for (i = 0; i < DTRACEOPT_MAX; i++) 929 dtp->dt_options[i] = DTRACEOPT_UNSET; 930 931 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path); 932 933 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u", 934 (uint_t)(sizeof (void *) * NBBY)); 935 936 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s", 937 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)), 938 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2))); 939 940 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL || 941 dt_cpp_add_arg(dtp, "-D__unix") == NULL || 942 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL || 943 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL || 944 dt_cpp_add_arg(dtp, isadef) == NULL || 945 dt_cpp_add_arg(dtp, utsdef) == NULL) 946 return (set_open_errno(dtp, errp, EDT_NOMEM)); 947 948 if (flags & DTRACE_O_NODEV) 949 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf)); 950 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0) 951 return (set_open_errno(dtp, errp, errno)); 952 953 if (flags & DTRACE_O_LP64) 954 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64; 955 else if (flags & DTRACE_O_ILP32) 956 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32; 957 958 #ifdef __sparc 959 /* 960 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h> 961 * and __sparcv9 is defined if we are doing a 64-bit compile. 962 */ 963 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL) 964 return (set_open_errno(dtp, errp, EDT_NOMEM)); 965 966 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 && 967 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL) 968 return (set_open_errno(dtp, errp, EDT_NOMEM)); 969 #endif 970 971 #ifdef __x86 972 /* 973 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit 974 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC, 975 * they are defined exclusive of one another (see PSARC 2004/619). 976 */ 977 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 978 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL) 979 return (set_open_errno(dtp, errp, EDT_NOMEM)); 980 } else { 981 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL) 982 return (set_open_errno(dtp, errp, EDT_NOMEM)); 983 } 984 #endif 985 986 if (dtp->dt_conf.dtc_difversion < DIF_VERSION) 987 return (set_open_errno(dtp, errp, EDT_DIFVERS)); 988 989 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) 990 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32)); 991 else 992 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64)); 993 994 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX); 995 dtp->dt_aggs = dt_idhash_create("aggregation", NULL, 996 DTRACE_AGGVARIDNONE + 1, UINT_MAX); 997 998 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals, 999 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1000 1001 dtp->dt_tls = dt_idhash_create("thread local", NULL, 1002 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1003 1004 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL || 1005 dtp->dt_globals == NULL || dtp->dt_tls == NULL) 1006 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1007 1008 /* 1009 * Populate the dt_macros identifier hash table by hand: we can't use 1010 * the dt_idhash_populate() mechanism because we're not yet compiling 1011 * and dtrace_update() needs to immediately reference these idents. 1012 */ 1013 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) { 1014 if (dt_idhash_insert(dtp->dt_macros, idp->di_name, 1015 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr, 1016 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw, 1017 idp->di_iarg, 0) == NULL) 1018 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1019 } 1020 1021 /* 1022 * Update the module list using /system/object and load the values for 1023 * the macro variable definitions according to the current process. 1024 */ 1025 dtrace_update(dtp); 1026 1027 /* 1028 * Select the intrinsics and typedefs we want based on the data model. 1029 * The intrinsics are under "C". The typedefs are added under "D". 1030 */ 1031 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) { 1032 dinp = _dtrace_intrinsics_32; 1033 dtyp = _dtrace_typedefs_32; 1034 } else { 1035 dinp = _dtrace_intrinsics_64; 1036 dtyp = _dtrace_typedefs_64; 1037 } 1038 1039 /* 1040 * Create a dynamic CTF container under the "C" scope for intrinsic 1041 * types and types defined in ANSI-C header files that are included. 1042 */ 1043 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL) 1044 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1045 1046 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1047 return (set_open_errno(dtp, errp, EDT_CTF)); 1048 1049 dt_dprintf("created CTF container for %s (%p)\n", 1050 dmp->dm_name, (void *)dmp->dm_ctfp); 1051 1052 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1053 ctf_setspecific(dmp->dm_ctfp, dmp); 1054 1055 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1056 dmp->dm_modid = -1; /* no module ID */ 1057 1058 /* 1059 * Fill the dynamic "C" CTF container with all of the intrinsic 1060 * integer and floating-point types appropriate for this data model. 1061 */ 1062 for (; dinp->din_name != NULL; dinp++) { 1063 if (dinp->din_kind == CTF_K_INTEGER) { 1064 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT, 1065 dinp->din_name, &dinp->din_data); 1066 } else { 1067 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT, 1068 dinp->din_name, &dinp->din_data); 1069 } 1070 1071 if (err == CTF_ERR) { 1072 dt_dprintf("failed to add %s to C container: %s\n", 1073 dinp->din_name, ctf_errmsg( 1074 ctf_errno(dmp->dm_ctfp))); 1075 return (set_open_errno(dtp, errp, EDT_CTF)); 1076 } 1077 } 1078 1079 if (ctf_update(dmp->dm_ctfp) != 0) { 1080 dt_dprintf("failed to update C container: %s\n", 1081 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1082 return (set_open_errno(dtp, errp, EDT_CTF)); 1083 } 1084 1085 /* 1086 * Add intrinsic pointer types that are needed to initialize printf 1087 * format dictionary types (see table in dt_printf.c). 1088 */ 1089 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1090 ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1091 1092 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1093 ctf_lookup_by_name(dmp->dm_ctfp, "char")); 1094 1095 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1096 ctf_lookup_by_name(dmp->dm_ctfp, "int")); 1097 1098 if (ctf_update(dmp->dm_ctfp) != 0) { 1099 dt_dprintf("failed to update C container: %s\n", 1100 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1101 return (set_open_errno(dtp, errp, EDT_CTF)); 1102 } 1103 1104 /* 1105 * Create a dynamic CTF container under the "D" scope for types that 1106 * are defined by the D program itself or on-the-fly by the D compiler. 1107 * The "D" CTF container is a child of the "C" CTF container. 1108 */ 1109 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL) 1110 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1111 1112 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1113 return (set_open_errno(dtp, errp, EDT_CTF)); 1114 1115 dt_dprintf("created CTF container for %s (%p)\n", 1116 dmp->dm_name, (void *)dmp->dm_ctfp); 1117 1118 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1119 ctf_setspecific(dmp->dm_ctfp, dmp); 1120 1121 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1122 dmp->dm_modid = -1; /* no module ID */ 1123 1124 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) { 1125 dt_dprintf("failed to import D parent container: %s\n", 1126 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1127 return (set_open_errno(dtp, errp, EDT_CTF)); 1128 } 1129 1130 /* 1131 * Fill the dynamic "D" CTF container with all of the built-in typedefs 1132 * that we need to use for our D variable and function definitions. 1133 * This ensures that basic inttypes.h names are always available to us. 1134 */ 1135 for (; dtyp->dty_src != NULL; dtyp++) { 1136 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1137 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp, 1138 dtyp->dty_src)) == CTF_ERR) { 1139 dt_dprintf("failed to add typedef %s %s to D " 1140 "container: %s", dtyp->dty_src, dtyp->dty_dst, 1141 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1142 return (set_open_errno(dtp, errp, EDT_CTF)); 1143 } 1144 } 1145 1146 /* 1147 * Insert a CTF ID corresponding to a pointer to a type of kind 1148 * CTF_K_FUNCTION we can use in the compiler for function pointers. 1149 * CTF treats all function pointers as "int (*)()" so we only need one. 1150 */ 1151 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int"); 1152 ctc.ctc_argc = 0; 1153 ctc.ctc_flags = 0; 1154 1155 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp, 1156 CTF_ADD_ROOT, &ctc, NULL); 1157 1158 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp, 1159 CTF_ADD_ROOT, dtp->dt_type_func); 1160 1161 /* 1162 * We also insert CTF definitions for the special D intrinsic types 1163 * string and <DYN> into the D container. The string type is added 1164 * as a typedef of char[n]. The <DYN> type is an alias for void. 1165 * We compare types to these special CTF ids throughout the compiler. 1166 */ 1167 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char"); 1168 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long"); 1169 ctr.ctr_nelems = _dtrace_strsize; 1170 1171 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1172 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr)); 1173 1174 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1175 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1176 1177 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1178 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1179 1180 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1181 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1182 1183 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1184 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1185 1186 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR || 1187 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR || 1188 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR || 1189 dtp->dt_type_usymaddr == CTF_ERR) { 1190 dt_dprintf("failed to add intrinsic to D container: %s\n", 1191 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1192 return (set_open_errno(dtp, errp, EDT_CTF)); 1193 } 1194 1195 if (ctf_update(dmp->dm_ctfp) != 0) { 1196 dt_dprintf("failed update D container: %s\n", 1197 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1198 return (set_open_errno(dtp, errp, EDT_CTF)); 1199 } 1200 1201 /* 1202 * Initialize the integer description table used to convert integer 1203 * constants to the appropriate types. Refer to the comments above 1204 * dt_node_int() for a complete description of how this table is used. 1205 */ 1206 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) { 1207 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY, 1208 dtp->dt_ints[i].did_name, &dtt) != 0) { 1209 dt_dprintf("failed to lookup integer type %s: %s\n", 1210 dtp->dt_ints[i].did_name, 1211 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1212 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1213 } 1214 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp; 1215 dtp->dt_ints[i].did_type = dtt.dtt_type; 1216 } 1217 1218 /* 1219 * Now that we've created the "C" and "D" containers, move them to the 1220 * start of the module list so that these types and symbols are found 1221 * first (for stability) when iterating through the module list. 1222 */ 1223 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs); 1224 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs); 1225 1226 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs); 1227 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs); 1228 1229 if (dt_pfdict_create(dtp) == -1) 1230 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1231 1232 /* 1233 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default 1234 * because without /dev/dtrace open, we will not be able to load the 1235 * names and attributes of any providers or probes from the kernel. 1236 */ 1237 if (flags & DTRACE_O_NODEV) 1238 dtp->dt_cflags |= DTRACE_C_ZDEFS; 1239 1240 /* 1241 * Load hard-wired inlines into the definition cache by calling the 1242 * compiler on the raw definition string defined above. 1243 */ 1244 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire, 1245 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) { 1246 dt_dprintf("failed to load hard-wired definitions: %s\n", 1247 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1248 return (set_open_errno(dtp, errp, EDT_HARDWIRE)); 1249 } 1250 1251 dt_program_destroy(dtp, pgp); 1252 1253 /* 1254 * Set up the default DTrace library path. Once set, the next call to 1255 * dt_compile() will compile all the libraries. We intentionally defer 1256 * library processing to improve overhead for clients that don't ever 1257 * compile, and to provide better error reporting (because the full 1258 * reporting of compiler errors requires dtrace_open() to succeed). 1259 */ 1260 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0) 1261 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1262 1263 return (dtp); 1264 } 1265 1266 dtrace_hdl_t * 1267 dtrace_open(int version, int flags, int *errp) 1268 { 1269 return (dt_vopen(version, flags, errp, NULL, NULL)); 1270 } 1271 1272 dtrace_hdl_t * 1273 dtrace_vopen(int version, int flags, int *errp, 1274 const dtrace_vector_t *vector, void *arg) 1275 { 1276 return (dt_vopen(version, flags, errp, vector, arg)); 1277 } 1278 1279 void 1280 dtrace_close(dtrace_hdl_t *dtp) 1281 { 1282 dt_ident_t *idp, *ndp; 1283 dt_module_t *dmp; 1284 dt_provider_t *pvp; 1285 dtrace_prog_t *pgp; 1286 dt_xlator_t *dxp; 1287 dt_dirpath_t *dirp; 1288 int i; 1289 1290 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL) 1291 dt_program_destroy(dtp, pgp); 1292 1293 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL) 1294 dt_xlator_destroy(dtp, dxp); 1295 1296 dt_free(dtp, dtp->dt_xlatormap); 1297 1298 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) { 1299 ndp = idp->di_next; 1300 dt_ident_destroy(idp); 1301 } 1302 1303 if (dtp->dt_macros != NULL) 1304 dt_idhash_destroy(dtp->dt_macros); 1305 if (dtp->dt_aggs != NULL) 1306 dt_idhash_destroy(dtp->dt_aggs); 1307 if (dtp->dt_globals != NULL) 1308 dt_idhash_destroy(dtp->dt_globals); 1309 if (dtp->dt_tls != NULL) 1310 dt_idhash_destroy(dtp->dt_tls); 1311 1312 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL) 1313 dt_module_destroy(dtp, dmp); 1314 1315 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL) 1316 dt_provider_destroy(dtp, pvp); 1317 1318 if (dtp->dt_procs != NULL) 1319 dt_proc_hash_destroy(dtp); 1320 1321 if (dtp->dt_fd != -1) 1322 (void) close(dtp->dt_fd); 1323 if (dtp->dt_ftfd != -1) 1324 (void) close(dtp->dt_ftfd); 1325 if (dtp->dt_cdefs_fd != -1) 1326 (void) close(dtp->dt_cdefs_fd); 1327 if (dtp->dt_ddefs_fd != -1) 1328 (void) close(dtp->dt_ddefs_fd); 1329 if (dtp->dt_stdout_fd != -1) 1330 (void) close(dtp->dt_stdout_fd); 1331 1332 dt_epid_destroy(dtp); 1333 dt_aggid_destroy(dtp); 1334 dt_format_destroy(dtp); 1335 dt_buffered_destroy(dtp); 1336 dt_aggregate_destroy(dtp); 1337 free(dtp->dt_buf.dtbd_data); 1338 dt_pfdict_destroy(dtp); 1339 dt_provmod_destroy(&dtp->dt_provmod); 1340 dt_dof_fini(dtp); 1341 1342 for (i = 1; i < dtp->dt_cpp_argc; i++) 1343 free(dtp->dt_cpp_argv[i]); 1344 1345 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) { 1346 dt_list_delete(&dtp->dt_lib_path, dirp); 1347 free(dirp->dir_path); 1348 free(dirp); 1349 } 1350 1351 free(dtp->dt_cpp_argv); 1352 free(dtp->dt_cpp_path); 1353 free(dtp->dt_ld_path); 1354 1355 free(dtp->dt_mods); 1356 free(dtp->dt_provs); 1357 free(dtp); 1358 } 1359 1360 int 1361 dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods) 1362 { 1363 dt_provmod_t *prov; 1364 int i = 0; 1365 1366 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) { 1367 if (i < nmods) 1368 mods[i] = prov->dp_name; 1369 } 1370 1371 return (i); 1372 } 1373 1374 int 1375 dtrace_ctlfd(dtrace_hdl_t *dtp) 1376 { 1377 return (dtp->dt_fd); 1378 } 1379