1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <sys/types.h> 30 #include <sys/modctl.h> 31 #include <sys/systeminfo.h> 32 #include <sys/resource.h> 33 34 #include <libelf.h> 35 #include <strings.h> 36 #include <alloca.h> 37 #include <limits.h> 38 #include <unistd.h> 39 #include <stdlib.h> 40 #include <stdio.h> 41 #include <fcntl.h> 42 #include <errno.h> 43 #include <assert.h> 44 45 #define _POSIX_PTHREAD_SEMANTICS 46 #include <dirent.h> 47 #undef _POSIX_PTHREAD_SEMANTICS 48 49 #include <dt_impl.h> 50 #include <dt_program.h> 51 #include <dt_module.h> 52 #include <dt_printf.h> 53 #include <dt_string.h> 54 #include <dt_provider.h> 55 56 /* 57 * Stability and versioning definitions. These #defines are used in the tables 58 * of identifiers below to fill in the attribute and version fields associated 59 * with each identifier. The DT_ATTR_* macros are a convenience to permit more 60 * concise declarations of common attributes such as Stable/Stable/Common. The 61 * DT_VERS_* macros declare the encoded integer values of all versions used so 62 * far. DT_VERS_LATEST must correspond to the latest version value among all 63 * versions exported by the D compiler. DT_VERS_STRING must be an ASCII string 64 * that contains DT_VERS_LATEST within it along with any suffixes (e.g. Beta). 65 * You must update DT_VERS_LATEST and DT_VERS_STRING when adding a new version, 66 * and then add the new version to the _dtrace_versions[] array declared below. 67 * Refer to the Solaris Dynamic Tracing Guide Stability and Versioning chapters 68 * respectively for an explanation of these DTrace features and their values. 69 * 70 * NOTE: Although the DTrace versioning scheme supports the labeling and 71 * introduction of incompatible changes (e.g. dropping an interface in a 72 * major release), the libdtrace code does not currently support this. 73 * All versions are assumed to strictly inherit from one another. If 74 * we ever need to provide divergent interfaces, this will need work. 75 */ 76 #define DT_ATTR_STABCMN { DTRACE_STABILITY_STABLE, \ 77 DTRACE_STABILITY_STABLE, DTRACE_CLASS_COMMON } 78 79 #define DT_ATTR_EVOLCMN { DTRACE_STABILITY_EVOLVING, \ 80 DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_COMMON \ 81 } 82 83 /* 84 * The version number should be increased for every customer visible release 85 * of Solaris. The major number should be incremented when a fundamental 86 * change has been made that would affect all consumers, and would reflect 87 * sweeping changes to DTrace or the D language. The minor number should be 88 * incremented when a change is introduced that could break scripts that had 89 * previously worked; for example, adding a new built-in variable could break 90 * a script which was already using that identifier. The micro number should 91 * be changed when introducing functionality changes or major bug fixes that 92 * do not affect backward compatibility -- this is merely to make capabilities 93 * easily determined from the version number. Minor bugs do not require any 94 * modification to the version number. 95 */ 96 #define DT_VERS_1_0 DT_VERSION_NUMBER(1, 0, 0) 97 #define DT_VERS_1_1 DT_VERSION_NUMBER(1, 1, 0) 98 #define DT_VERS_1_2 DT_VERSION_NUMBER(1, 2, 0) 99 #define DT_VERS_1_2_1 DT_VERSION_NUMBER(1, 2, 1) 100 #define DT_VERS_1_2_2 DT_VERSION_NUMBER(1, 2, 2) 101 #define DT_VERS_1_3 DT_VERSION_NUMBER(1, 3, 0) 102 #define DT_VERS_1_4 DT_VERSION_NUMBER(1, 4, 0) 103 #define DT_VERS_1_4_1 DT_VERSION_NUMBER(1, 4, 1) 104 #define DT_VERS_LATEST DT_VERS_1_4_1 105 #define DT_VERS_STRING "Sun D 1.4.1" 106 107 const dt_version_t _dtrace_versions[] = { 108 DT_VERS_1_0, /* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */ 109 DT_VERS_1_1, /* D API 1.1.0 Solaris Express 6/05 */ 110 DT_VERS_1_2, /* D API 1.2.0 Solaris 10 Update 1 */ 111 DT_VERS_1_2_1, /* D API 1.2.1 Solaris Express 4/06 */ 112 DT_VERS_1_2_2, /* D API 1.2.2 Solaris Express 6/06 */ 113 DT_VERS_1_3, /* D API 1.3 Solaris Express 10/06 */ 114 DT_VERS_1_4, /* D API 1.4 Solaris Express 2/07 */ 115 DT_VERS_1_4_1, /* D API 1.4.1 Solaris Express 4/07 */ 116 0 117 }; 118 119 /* 120 * Table of global identifiers. This is used to populate the global identifier 121 * hash when a new dtrace client open occurs. For more info see dt_ident.h. 122 * The global identifiers that represent functions use the dt_idops_func ops 123 * and specify the private data pointer as a prototype string which is parsed 124 * when the identifier is first encountered. These prototypes look like ANSI 125 * C function prototypes except that the special symbol "@" can be used as a 126 * wildcard to represent a single parameter of any type (i.e. any dt_node_t). 127 * The standard "..." notation can also be used to represent varargs. An empty 128 * parameter list is taken to mean void (that is, no arguments are permitted). 129 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional 130 * argument. 131 */ 132 static const dt_ident_t _dtrace_globals[] = { 133 { "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0, 134 &dt_idops_func, "void *(size_t)" }, 135 { "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0, 136 &dt_idops_type, "int64_t" }, 137 { "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0, 138 &dt_idops_type, "int64_t" }, 139 { "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0, 140 &dt_idops_type, "int64_t" }, 141 { "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0, 142 &dt_idops_type, "int64_t" }, 143 { "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0, 144 &dt_idops_type, "int64_t" }, 145 { "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0, 146 &dt_idops_type, "int64_t" }, 147 { "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0, 148 &dt_idops_type, "int64_t" }, 149 { "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0, 150 &dt_idops_type, "int64_t" }, 151 { "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0, 152 &dt_idops_type, "int64_t" }, 153 { "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0, 154 &dt_idops_type, "int64_t" }, 155 { "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0, 156 &dt_idops_args, NULL }, 157 { "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0, 158 &dt_idops_func, "void(@)" }, 159 { "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0, 160 &dt_idops_func, "string(const char *)" }, 161 { "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0, 162 &dt_idops_func, "void(void *, void *, size_t)" }, 163 { "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT, 164 DT_ATTR_STABCMN, DT_VERS_1_0, 165 &dt_idops_func, "void()" }, 166 { "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0, 167 &dt_idops_type, "uintptr_t" }, 168 { "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0, 169 &dt_idops_func, "void(int)" }, 170 { "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN, 171 DT_VERS_1_0, &dt_idops_func, "string(const char *)" }, 172 { "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0, 173 &dt_idops_func, "void(...)" }, 174 { "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0, 175 &dt_idops_func, "void(int)" }, 176 { "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0, 177 &dt_idops_func, "void *(uintptr_t, size_t)" }, 178 { "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR, 179 DT_ATTR_STABCMN, DT_VERS_1_0, 180 &dt_idops_func, "string(uintptr_t, [size_t])" }, 181 { "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN, 182 DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" }, 183 { "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0, 184 &dt_idops_func, "void(void *, uintptr_t, size_t)" }, 185 { "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR, 186 DT_ATTR_STABCMN, DT_VERS_1_0, 187 &dt_idops_func, "void(char *, uintptr_t, size_t)" }, 188 { "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0, 189 &dt_idops_func, "void()" }, 190 { "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD, 191 { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE, 192 DTRACE_CLASS_COMMON }, DT_VERS_1_0, 193 &dt_idops_type, "genunix`kthread_t *" }, 194 { "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME, 195 DT_ATTR_EVOLCMN, DT_VERS_1_0, 196 &dt_idops_func, "string(void *, int64_t)" }, 197 { "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN, 198 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 199 { "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0, 200 &dt_idops_func, "string(const char *)" }, 201 { "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0, 202 &dt_idops_func, "void(int)" }, 203 { "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0, 204 &dt_idops_type, "uint_t" }, 205 { "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0, 206 &dt_idops_type, "int" }, 207 { "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME, 208 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 209 { "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0, 210 &dt_idops_func, "void(int)" }, 211 { "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN, 212 DT_VERS_1_1, &dt_idops_func, "void(@, ...)" }, 213 { "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN, 214 DT_VERS_1_0, &dt_idops_func, "void()" }, 215 { "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 216 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 217 { "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR, 218 DT_ATTR_EVOLCMN, DT_VERS_1_0, 219 &dt_idops_func, "genunix`major_t(genunix`dev_t)" }, 220 { "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR, 221 DT_ATTR_EVOLCMN, DT_VERS_1_0, 222 &dt_idops_func, "genunix`minor_t(genunix`dev_t)" }, 223 { "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 224 &dt_idops_func, "uint32_t(uint32_t)" }, 225 { "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 226 &dt_idops_func, "uint64_t(uint64_t)" }, 227 { "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 228 &dt_idops_func, "uint16_t(uint16_t)" }, 229 { "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0, 230 &dt_idops_type, "gid_t" }, 231 { "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0, 232 &dt_idops_type, "uint_t" }, 233 { "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 234 &dt_idops_func, "int(const char *, const char *, [int])" }, 235 { "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN, 236 DT_VERS_1_0, &dt_idops_func, "string(ipaddr_t *)" }, 237 { "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN, 238 DT_VERS_1_0, &dt_idops_func, "string(in6_addr_t *)" }, 239 { "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN, 240 DT_VERS_1_0, &dt_idops_func, "string(int, void *)" }, 241 { "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0, 242 &dt_idops_type, "uint_t" }, 243 { "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 244 &dt_idops_func, "stack(...)" }, 245 { "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0, 246 &dt_idops_func, "string(int64_t)" }, 247 { "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE, 248 DT_ATTR_STABCMN, DT_VERS_1_0, 249 &dt_idops_func, "void(@, int32_t, int32_t, ...)" }, 250 { "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0, 251 &dt_idops_func, "void(@)" }, 252 { "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0, 253 &dt_idops_func, "void(@)" }, 254 { "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN, 255 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 256 { "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE, 257 DT_ATTR_STABCMN, DT_VERS_1_0, 258 &dt_idops_func, "size_t(mblk_t *)" }, 259 { "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE, 260 DT_ATTR_STABCMN, DT_VERS_1_0, 261 &dt_idops_func, "size_t(mblk_t *)" }, 262 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 263 DT_ATTR_EVOLCMN, DT_VERS_1_0, 264 &dt_idops_func, "int(genunix`kmutex_t *)" }, 265 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 266 DT_ATTR_EVOLCMN, DT_VERS_1_0, 267 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" }, 268 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 269 DT_ATTR_EVOLCMN, DT_VERS_1_0, 270 &dt_idops_func, "int(genunix`kmutex_t *)" }, 271 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 272 DT_ATTR_EVOLCMN, DT_VERS_1_0, 273 &dt_idops_func, "int(genunix`kmutex_t *)" }, 274 { "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 275 &dt_idops_func, "uint32_t(uint32_t)" }, 276 { "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 277 &dt_idops_func, "uint64_t(uint64_t)" }, 278 { "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 279 &dt_idops_func, "uint16_t(uint16_t)" }, 280 { "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN, 281 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 282 { "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0, 283 &dt_idops_func, "void()" }, 284 { "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0, 285 &dt_idops_type, "pid_t" }, 286 { "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0, 287 &dt_idops_type, "pid_t" }, 288 { "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0, 289 &dt_idops_func, "void(@, ...)" }, 290 { "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0, 291 &dt_idops_func, "void(@, ...)" }, 292 { "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC, 293 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 294 { "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD, 295 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 296 { "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME, 297 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 298 { "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV, 299 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 300 { "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF, 301 DT_ATTR_STABCMN, DT_VERS_1_0, 302 &dt_idops_func, "int(pid_t)" }, 303 { "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE, 304 DT_ATTR_STABCMN, DT_VERS_1_0, 305 &dt_idops_func, "void(@, ...)" }, 306 { "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0, 307 &dt_idops_func, "void(int)" }, 308 { "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0, 309 &dt_idops_func, "int()" }, 310 { "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 311 &dt_idops_func, "int(const char *, const char *, [int])" }, 312 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 313 DT_ATTR_EVOLCMN, DT_VERS_1_0, 314 &dt_idops_func, "int(genunix`krwlock_t *)" }, 315 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 316 DT_ATTR_EVOLCMN, DT_VERS_1_0, 317 &dt_idops_func, "int(genunix`krwlock_t *)" }, 318 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 319 DT_ATTR_EVOLCMN, DT_VERS_1_0, 320 &dt_idops_func, "int(genunix`krwlock_t *)" }, 321 { "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 322 &dt_idops_type, "void" }, 323 { "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN, 324 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" }, 325 { "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE, 326 DT_ATTR_STABCMN, DT_VERS_1_0, 327 &dt_idops_func, "void(int)" }, 328 { "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION, 329 DT_ATTR_STABCMN, DT_VERS_1_0, 330 &dt_idops_func, "int()" }, 331 { "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0, 332 &dt_idops_func, "stack(...)" }, 333 { "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH, 334 DT_ATTR_STABCMN, DT_VERS_1_0, 335 &dt_idops_type, "uint32_t" }, 336 { "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0, 337 &dt_idops_func, "void()" }, 338 { "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 339 &dt_idops_func, "string(const char *, char)" }, 340 { "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0, 341 &dt_idops_func, "size_t(const char *)" }, 342 { "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0, 343 &dt_idops_func, "string(const char *, const char *)" }, 344 { "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 345 &dt_idops_func, "string(const char *, char)" }, 346 { "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 347 &dt_idops_func, "string(const char *, const char *)" }, 348 { "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1, 349 &dt_idops_func, "string(const char *, const char *)" }, 350 { "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 351 &dt_idops_func, "string(const char *, int, [int])" }, 352 { "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0, 353 &dt_idops_func, "void(@)" }, 354 { "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 355 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 356 { "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0, 357 &dt_idops_func, "void(@, ...)" }, 358 { "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 359 &dt_idops_type, "void" }, 360 { "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0, 361 &dt_idops_type, "id_t" }, 362 { "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP, 363 DT_ATTR_STABCMN, DT_VERS_1_0, 364 &dt_idops_type, "uint64_t" }, 365 { "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0, 366 &dt_idops_func, "void(@)" }, 367 { "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM, 368 DT_ATTR_STABCMN, DT_VERS_1_0, 369 &dt_idops_func, "void(@, size_t)" }, 370 { "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN, 371 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 372 { "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN, 373 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 374 { "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN, 375 DT_VERS_1_2, &dt_idops_type, "uint64_t" }, 376 { "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 377 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 378 { "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0, 379 &dt_idops_type, "uid_t" }, 380 { "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN, 381 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 382 { "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0, 383 &dt_idops_regs, NULL }, 384 { "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 385 &dt_idops_func, "stack(...)" }, 386 { "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH, 387 DT_ATTR_STABCMN, DT_VERS_1_2, 388 &dt_idops_type, "uint32_t" }, 389 { "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 390 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 391 { "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP, 392 DT_ATTR_STABCMN, DT_VERS_1_0, 393 &dt_idops_type, "uint64_t" }, 394 { "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP, 395 DT_ATTR_STABCMN, DT_VERS_1_0, 396 &dt_idops_type, "int64_t" }, 397 { "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME, 398 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 399 { NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL } 400 }; 401 402 /* 403 * Tables of ILP32 intrinsic integer and floating-point type templates to use 404 * to populate the dynamic "C" CTF type container. 405 */ 406 static const dt_intrinsic_t _dtrace_intrinsics_32[] = { 407 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 408 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 409 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 410 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 411 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 412 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 413 { "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 414 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 415 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 416 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 417 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 418 { "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 419 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 420 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 421 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 422 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 423 { "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER }, 424 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 425 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 426 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 427 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 428 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 429 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 430 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 431 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 432 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 433 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 434 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 435 { NULL, { 0, 0, 0 }, 0 } 436 }; 437 438 /* 439 * Tables of LP64 intrinsic integer and floating-point type templates to use 440 * to populate the dynamic "C" CTF type container. 441 */ 442 static const dt_intrinsic_t _dtrace_intrinsics_64[] = { 443 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 444 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 445 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 446 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 447 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 448 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 449 { "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 450 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 451 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 452 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 453 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 454 { "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 455 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 456 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 457 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 458 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 459 { "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER }, 460 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 461 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 462 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 463 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 464 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 465 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 466 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 467 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 468 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 469 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 470 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 471 { NULL, { 0, 0, 0 }, 0 } 472 }; 473 474 /* 475 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container. 476 * These aliases ensure that D definitions can use typical <sys/types.h> names. 477 */ 478 static const dt_typedef_t _dtrace_typedefs_32[] = { 479 { "char", "int8_t" }, 480 { "short", "int16_t" }, 481 { "int", "int32_t" }, 482 { "long long", "int64_t" }, 483 { "int", "intptr_t" }, 484 { "int", "ssize_t" }, 485 { "unsigned char", "uint8_t" }, 486 { "unsigned short", "uint16_t" }, 487 { "unsigned", "uint32_t" }, 488 { "unsigned long long", "uint64_t" }, 489 { "unsigned char", "uchar_t" }, 490 { "unsigned short", "ushort_t" }, 491 { "unsigned", "uint_t" }, 492 { "unsigned long", "ulong_t" }, 493 { "unsigned long long", "u_longlong_t" }, 494 { "int", "ptrdiff_t" }, 495 { "unsigned", "uintptr_t" }, 496 { "unsigned", "size_t" }, 497 { "long", "id_t" }, 498 { "long", "pid_t" }, 499 { NULL, NULL } 500 }; 501 502 /* 503 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container. 504 * These aliases ensure that D definitions can use typical <sys/types.h> names. 505 */ 506 static const dt_typedef_t _dtrace_typedefs_64[] = { 507 { "char", "int8_t" }, 508 { "short", "int16_t" }, 509 { "int", "int32_t" }, 510 { "long", "int64_t" }, 511 { "long", "intptr_t" }, 512 { "long", "ssize_t" }, 513 { "unsigned char", "uint8_t" }, 514 { "unsigned short", "uint16_t" }, 515 { "unsigned", "uint32_t" }, 516 { "unsigned long", "uint64_t" }, 517 { "unsigned char", "uchar_t" }, 518 { "unsigned short", "ushort_t" }, 519 { "unsigned", "uint_t" }, 520 { "unsigned long", "ulong_t" }, 521 { "unsigned long long", "u_longlong_t" }, 522 { "long", "ptrdiff_t" }, 523 { "unsigned long", "uintptr_t" }, 524 { "unsigned long", "size_t" }, 525 { "int", "id_t" }, 526 { "int", "pid_t" }, 527 { NULL, NULL } 528 }; 529 530 /* 531 * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[] 532 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 533 */ 534 static const dt_intdesc_t _dtrace_ints_32[] = { 535 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 536 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 537 { "long", NULL, CTF_ERR, 0x7fffffffULL }, 538 { "unsigned long", NULL, CTF_ERR, 0xffffffffULL }, 539 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 540 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 541 }; 542 543 /* 544 * Tables of LP64 integer type templates used to populate the dtp->dt_ints[] 545 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 546 */ 547 static const dt_intdesc_t _dtrace_ints_64[] = { 548 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 549 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 550 { "long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 551 { "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL }, 552 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 553 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 554 }; 555 556 /* 557 * Table of macro variable templates used to populate the macro identifier hash 558 * when a new dtrace client open occurs. Values are set by dtrace_update(). 559 */ 560 static const dt_ident_t _dtrace_macros[] = { 561 { "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 562 { "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 563 { "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 564 { "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 565 { "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 566 { "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 567 { "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 568 { "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 569 { "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 570 { "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 571 { "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 572 { NULL, 0, 0, 0, { 0, 0, 0 }, 0 } 573 }; 574 575 /* 576 * Hard-wired definition string to be compiled and cached every time a new 577 * DTrace library handle is initialized. This string should only be used to 578 * contain definitions that should be present regardless of DTRACE_O_NOLIBS. 579 */ 580 static const char _dtrace_hardwire[] = "\ 581 inline long NULL = 0; \n\ 582 #pragma D binding \"1.0\" NULL\n\ 583 "; 584 585 /* 586 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV. 587 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel. 588 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are 589 * relying on the fact that when running dtrace(1M), isaexec will invoke the 590 * binary with the same bitness as the kernel, which is what we want by default 591 * when generating our DIF. The user can override the choice using oflags. 592 */ 593 static const dtrace_conf_t _dtrace_conf = { 594 DIF_VERSION, /* dtc_difversion */ 595 DIF_DIR_NREGS, /* dtc_difintregs */ 596 DIF_DTR_NREGS, /* dtc_diftupregs */ 597 CTF_MODEL_NATIVE /* dtc_ctfmodel */ 598 }; 599 600 const dtrace_attribute_t _dtrace_maxattr = { 601 DTRACE_STABILITY_MAX, 602 DTRACE_STABILITY_MAX, 603 DTRACE_CLASS_MAX 604 }; 605 606 const dtrace_attribute_t _dtrace_defattr = { 607 DTRACE_STABILITY_STABLE, 608 DTRACE_STABILITY_STABLE, 609 DTRACE_CLASS_COMMON 610 }; 611 612 const dtrace_attribute_t _dtrace_symattr = { 613 DTRACE_STABILITY_PRIVATE, 614 DTRACE_STABILITY_PRIVATE, 615 DTRACE_CLASS_UNKNOWN 616 }; 617 618 const dtrace_attribute_t _dtrace_typattr = { 619 DTRACE_STABILITY_PRIVATE, 620 DTRACE_STABILITY_PRIVATE, 621 DTRACE_CLASS_UNKNOWN 622 }; 623 624 const dtrace_attribute_t _dtrace_prvattr = { 625 DTRACE_STABILITY_PRIVATE, 626 DTRACE_STABILITY_PRIVATE, 627 DTRACE_CLASS_UNKNOWN 628 }; 629 630 const dtrace_pattr_t _dtrace_prvdesc = { 631 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 632 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 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 }; 637 638 const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */ 639 const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */ 640 641 const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */ 642 const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */ 643 644 int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */ 645 int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */ 646 uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */ 647 uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */ 648 uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */ 649 uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */ 650 size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */ 651 int _dtrace_argmax = 32; /* default maximum number of probe arguments */ 652 653 int _dtrace_debug = 0; /* debug messages enabled (off) */ 654 const char *const _dtrace_version = DT_VERS_STRING; /* API version string */ 655 int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */ 656 657 typedef struct dt_fdlist { 658 int *df_fds; /* array of provider driver file descriptors */ 659 uint_t df_ents; /* number of valid elements in df_fds[] */ 660 uint_t df_size; /* size of df_fds[] */ 661 } dt_fdlist_t; 662 663 #pragma init(_dtrace_init) 664 void 665 _dtrace_init(void) 666 { 667 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL; 668 669 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) { 670 if (rd_init(_dtrace_rdvers) == RD_OK) 671 break; 672 } 673 } 674 675 static dtrace_hdl_t * 676 set_open_errno(dtrace_hdl_t *dtp, int *errp, int err) 677 { 678 if (dtp != NULL) 679 dtrace_close(dtp); 680 if (errp != NULL) 681 *errp = err; 682 return (NULL); 683 } 684 685 static void 686 dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp) 687 { 688 dt_provmod_t *prov; 689 char path[PATH_MAX]; 690 struct dirent *dp, *ep; 691 DIR *dirp; 692 int fd; 693 694 if ((dirp = opendir(_dtrace_provdir)) == NULL) 695 return; /* failed to open directory; just skip it */ 696 697 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1); 698 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1); 699 700 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) { 701 if (dp->d_name[0] == '.') 702 continue; /* skip "." and ".." */ 703 704 if (dfp->df_ents == dfp->df_size) { 705 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 706 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 707 708 if (fds == NULL) 709 break; /* skip the rest of this directory */ 710 711 dfp->df_fds = fds; 712 dfp->df_size = size; 713 } 714 715 (void) snprintf(path, sizeof (path), "%s/%s", 716 _dtrace_provdir, dp->d_name); 717 718 if ((fd = open(path, O_RDONLY)) == -1) 719 continue; /* failed to open driver; just skip it */ 720 721 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 722 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) { 723 free(prov); 724 (void) close(fd); 725 break; 726 } 727 728 (void) strcpy(prov->dp_name, dp->d_name); 729 prov->dp_next = *provmod; 730 *provmod = prov; 731 732 dt_dprintf("opened provider %s\n", dp->d_name); 733 dfp->df_fds[dfp->df_ents++] = fd; 734 } 735 736 (void) closedir(dirp); 737 } 738 739 static void 740 dt_provmod_destroy(dt_provmod_t **provmod) 741 { 742 dt_provmod_t *next, *current; 743 744 for (current = *provmod; current != NULL; current = next) { 745 next = current->dp_next; 746 free(current->dp_name); 747 free(current); 748 } 749 750 *provmod = NULL; 751 } 752 753 static const char * 754 dt_get_sysinfo(int cmd, char *buf, size_t len) 755 { 756 ssize_t rv = sysinfo(cmd, buf, len); 757 char *p = buf; 758 759 if (rv < 0 || rv > len) 760 (void) snprintf(buf, len, "%s", "Unknown"); 761 762 while ((p = strchr(p, '.')) != NULL) 763 *p++ = '_'; 764 765 return (buf); 766 } 767 768 static dtrace_hdl_t * 769 dt_vopen(int version, int flags, int *errp, 770 const dtrace_vector_t *vector, void *arg) 771 { 772 dtrace_hdl_t *dtp = NULL; 773 int dtfd = -1, ftfd = -1, fterr = 0; 774 dtrace_prog_t *pgp; 775 dt_module_t *dmp; 776 dt_provmod_t *provmod = NULL; 777 int i, err; 778 struct rlimit rl; 779 780 const dt_intrinsic_t *dinp; 781 const dt_typedef_t *dtyp; 782 const dt_ident_t *idp; 783 784 dtrace_typeinfo_t dtt; 785 ctf_funcinfo_t ctc; 786 ctf_arinfo_t ctr; 787 788 dt_fdlist_t df = { NULL, 0, 0 }; 789 790 char isadef[32], utsdef[32]; 791 char s1[64], s2[64]; 792 793 if (version <= 0) 794 return (set_open_errno(dtp, errp, EINVAL)); 795 796 if (version > DTRACE_VERSION) 797 return (set_open_errno(dtp, errp, EDT_VERSION)); 798 799 if (version < DTRACE_VERSION) { 800 /* 801 * Currently, increasing the library version number is used to 802 * denote a binary incompatible change. That is, a consumer 803 * of the library cannot run on a version of the library with 804 * a higher DTRACE_VERSION number than the consumer compiled 805 * against. Once the library API has been committed to, 806 * backwards binary compatibility will be required; at that 807 * time, this check should change to return EDT_OVERSION only 808 * if the specified version number is less than the version 809 * number at the time of interface commitment. 810 */ 811 return (set_open_errno(dtp, errp, EDT_OVERSION)); 812 } 813 814 if (flags & ~DTRACE_O_MASK) 815 return (set_open_errno(dtp, errp, EINVAL)); 816 817 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32)) 818 return (set_open_errno(dtp, errp, EINVAL)); 819 820 if (vector == NULL && arg != NULL) 821 return (set_open_errno(dtp, errp, EINVAL)); 822 823 if (elf_version(EV_CURRENT) == EV_NONE) 824 return (set_open_errno(dtp, errp, EDT_ELFVERSION)); 825 826 if (vector != NULL || (flags & DTRACE_O_NODEV)) 827 goto alloc; /* do not attempt to open dtrace device */ 828 829 /* 830 * Before we get going, crank our limit on file descriptors up to the 831 * hard limit. This is to allow for the fact that libproc keeps file 832 * descriptors to objects open for the lifetime of the proc handle; 833 * without raising our hard limit, we would have an acceptably small 834 * bound on the number of processes that we could concurrently 835 * instrument with the pid provider. 836 */ 837 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) { 838 rl.rlim_cur = rl.rlim_max; 839 (void) setrlimit(RLIMIT_NOFILE, &rl); 840 } 841 842 /* 843 * Get the device path of each of the providers. We hold them open 844 * in the df.df_fds list until we open the DTrace driver itself, 845 * allowing us to see all of the probes provided on this system. Once 846 * we have the DTrace driver open, we can safely close all the providers 847 * now that they have registered with the framework. 848 */ 849 dt_provmod_open(&provmod, &df); 850 851 dtfd = open("/dev/dtrace/dtrace", O_RDWR); 852 err = errno; /* save errno from opening dtfd */ 853 854 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR); 855 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */ 856 857 while (df.df_ents-- != 0) 858 (void) close(df.df_fds[df.df_ents]); 859 860 free(df.df_fds); 861 862 /* 863 * If we failed to open the dtrace device, fail dtrace_open(). 864 * We convert some kernel errnos to custom libdtrace errnos to 865 * improve the resulting message from the usual strerror(). 866 */ 867 if (dtfd == -1) { 868 dt_provmod_destroy(&provmod); 869 switch (err) { 870 case ENOENT: 871 err = EDT_NOENT; 872 break; 873 case EBUSY: 874 err = EDT_BUSY; 875 break; 876 case EACCES: 877 err = EDT_ACCESS; 878 break; 879 } 880 return (set_open_errno(dtp, errp, err)); 881 } 882 883 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC); 884 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC); 885 886 alloc: 887 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL) 888 return (set_open_errno(dtp, errp, EDT_NOMEM)); 889 890 bzero(dtp, sizeof (dtrace_hdl_t)); 891 dtp->dt_oflags = flags; 892 dtp->dt_prcmode = DT_PROC_STOP_PREINIT; 893 dtp->dt_linkmode = DT_LINK_KERNEL; 894 dtp->dt_linktype = DT_LTYP_ELF; 895 dtp->dt_xlatemode = DT_XL_STATIC; 896 dtp->dt_stdcmode = DT_STDC_XA; 897 dtp->dt_version = version; 898 dtp->dt_fd = dtfd; 899 dtp->dt_ftfd = ftfd; 900 dtp->dt_fterr = fterr; 901 dtp->dt_cdefs_fd = -1; 902 dtp->dt_ddefs_fd = -1; 903 dtp->dt_stdout_fd = -1; 904 dtp->dt_modbuckets = _dtrace_strbuckets; 905 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *)); 906 dtp->dt_provbuckets = _dtrace_strbuckets; 907 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *)); 908 dt_proc_hash_create(dtp); 909 dtp->dt_vmax = DT_VERS_LATEST; 910 dtp->dt_cpp_path = strdup(_dtrace_defcpp); 911 dtp->dt_cpp_argv = malloc(sizeof (char *)); 912 dtp->dt_cpp_argc = 1; 913 dtp->dt_cpp_args = 1; 914 dtp->dt_ld_path = strdup(_dtrace_defld); 915 dtp->dt_provmod = provmod; 916 dtp->dt_vector = vector; 917 dtp->dt_varg = arg; 918 dt_dof_init(dtp); 919 (void) uname(&dtp->dt_uts); 920 921 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL || 922 dtp->dt_procs == NULL || dtp->dt_ld_path == NULL || 923 dtp->dt_cpp_path == NULL || dtp->dt_cpp_argv == NULL) 924 return (set_open_errno(dtp, errp, EDT_NOMEM)); 925 926 for (i = 0; i < DTRACEOPT_MAX; i++) 927 dtp->dt_options[i] = DTRACEOPT_UNSET; 928 929 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path); 930 931 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u", 932 (uint_t)(sizeof (void *) * NBBY)); 933 934 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s", 935 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)), 936 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2))); 937 938 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL || 939 dt_cpp_add_arg(dtp, "-D__unix") == NULL || 940 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL || 941 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL || 942 dt_cpp_add_arg(dtp, isadef) == NULL || 943 dt_cpp_add_arg(dtp, utsdef) == NULL) 944 return (set_open_errno(dtp, errp, EDT_NOMEM)); 945 946 if (flags & DTRACE_O_NODEV) 947 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf)); 948 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0) 949 return (set_open_errno(dtp, errp, errno)); 950 951 if (flags & DTRACE_O_LP64) 952 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64; 953 else if (flags & DTRACE_O_ILP32) 954 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32; 955 956 #ifdef __sparc 957 /* 958 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h> 959 * and __sparcv9 is defined if we are doing a 64-bit compile. 960 */ 961 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL) 962 return (set_open_errno(dtp, errp, EDT_NOMEM)); 963 964 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 && 965 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL) 966 return (set_open_errno(dtp, errp, EDT_NOMEM)); 967 #endif 968 969 #ifdef __x86 970 /* 971 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit 972 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC, 973 * they are defined exclusive of one another (see PSARC 2004/619). 974 */ 975 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 976 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL) 977 return (set_open_errno(dtp, errp, EDT_NOMEM)); 978 } else { 979 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL) 980 return (set_open_errno(dtp, errp, EDT_NOMEM)); 981 } 982 #endif 983 984 if (dtp->dt_conf.dtc_difversion < DIF_VERSION) 985 return (set_open_errno(dtp, errp, EDT_DIFVERS)); 986 987 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) 988 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32)); 989 else 990 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64)); 991 992 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX); 993 dtp->dt_aggs = dt_idhash_create("aggregation", NULL, 994 DTRACE_AGGVARIDNONE + 1, UINT_MAX); 995 996 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals, 997 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 998 999 dtp->dt_tls = dt_idhash_create("thread local", NULL, 1000 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1001 1002 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL || 1003 dtp->dt_globals == NULL || dtp->dt_tls == NULL) 1004 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1005 1006 /* 1007 * Populate the dt_macros identifier hash table by hand: we can't use 1008 * the dt_idhash_populate() mechanism because we're not yet compiling 1009 * and dtrace_update() needs to immediately reference these idents. 1010 */ 1011 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) { 1012 if (dt_idhash_insert(dtp->dt_macros, idp->di_name, 1013 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr, 1014 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw, 1015 idp->di_iarg, 0) == NULL) 1016 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1017 } 1018 1019 /* 1020 * Update the module list using /system/object and load the values for 1021 * the macro variable definitions according to the current process. 1022 */ 1023 dtrace_update(dtp); 1024 1025 /* 1026 * Select the intrinsics and typedefs we want based on the data model. 1027 * The intrinsics are under "C". The typedefs are added under "D". 1028 */ 1029 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) { 1030 dinp = _dtrace_intrinsics_32; 1031 dtyp = _dtrace_typedefs_32; 1032 } else { 1033 dinp = _dtrace_intrinsics_64; 1034 dtyp = _dtrace_typedefs_64; 1035 } 1036 1037 /* 1038 * Create a dynamic CTF container under the "C" scope for intrinsic 1039 * types and types defined in ANSI-C header files that are included. 1040 */ 1041 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL) 1042 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1043 1044 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1045 return (set_open_errno(dtp, errp, EDT_CTF)); 1046 1047 dt_dprintf("created CTF container for %s (%p)\n", 1048 dmp->dm_name, (void *)dmp->dm_ctfp); 1049 1050 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1051 ctf_setspecific(dmp->dm_ctfp, dmp); 1052 1053 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1054 dmp->dm_modid = -1; /* no module ID */ 1055 1056 /* 1057 * Fill the dynamic "C" CTF container with all of the intrinsic 1058 * integer and floating-point types appropriate for this data model. 1059 */ 1060 for (; dinp->din_name != NULL; dinp++) { 1061 if (dinp->din_kind == CTF_K_INTEGER) { 1062 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT, 1063 dinp->din_name, &dinp->din_data); 1064 } else { 1065 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT, 1066 dinp->din_name, &dinp->din_data); 1067 } 1068 1069 if (err == CTF_ERR) { 1070 dt_dprintf("failed to add %s to C container: %s\n", 1071 dinp->din_name, ctf_errmsg( 1072 ctf_errno(dmp->dm_ctfp))); 1073 return (set_open_errno(dtp, errp, EDT_CTF)); 1074 } 1075 } 1076 1077 if (ctf_update(dmp->dm_ctfp) != 0) { 1078 dt_dprintf("failed to update C container: %s\n", 1079 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1080 return (set_open_errno(dtp, errp, EDT_CTF)); 1081 } 1082 1083 /* 1084 * Add intrinsic pointer types that are needed to initialize printf 1085 * format dictionary types (see table in dt_printf.c). 1086 */ 1087 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1088 ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1089 1090 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1091 ctf_lookup_by_name(dmp->dm_ctfp, "char")); 1092 1093 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1094 ctf_lookup_by_name(dmp->dm_ctfp, "int")); 1095 1096 if (ctf_update(dmp->dm_ctfp) != 0) { 1097 dt_dprintf("failed to update C container: %s\n", 1098 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1099 return (set_open_errno(dtp, errp, EDT_CTF)); 1100 } 1101 1102 /* 1103 * Create a dynamic CTF container under the "D" scope for types that 1104 * are defined by the D program itself or on-the-fly by the D compiler. 1105 * The "D" CTF container is a child of the "C" CTF container. 1106 */ 1107 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL) 1108 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1109 1110 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1111 return (set_open_errno(dtp, errp, EDT_CTF)); 1112 1113 dt_dprintf("created CTF container for %s (%p)\n", 1114 dmp->dm_name, (void *)dmp->dm_ctfp); 1115 1116 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1117 ctf_setspecific(dmp->dm_ctfp, dmp); 1118 1119 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1120 dmp->dm_modid = -1; /* no module ID */ 1121 1122 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) { 1123 dt_dprintf("failed to import D parent container: %s\n", 1124 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1125 return (set_open_errno(dtp, errp, EDT_CTF)); 1126 } 1127 1128 /* 1129 * Fill the dynamic "D" CTF container with all of the built-in typedefs 1130 * that we need to use for our D variable and function definitions. 1131 * This ensures that basic inttypes.h names are always available to us. 1132 */ 1133 for (; dtyp->dty_src != NULL; dtyp++) { 1134 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1135 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp, 1136 dtyp->dty_src)) == CTF_ERR) { 1137 dt_dprintf("failed to add typedef %s %s to D " 1138 "container: %s", dtyp->dty_src, dtyp->dty_dst, 1139 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1140 return (set_open_errno(dtp, errp, EDT_CTF)); 1141 } 1142 } 1143 1144 /* 1145 * Insert a CTF ID corresponding to a pointer to a type of kind 1146 * CTF_K_FUNCTION we can use in the compiler for function pointers. 1147 * CTF treats all function pointers as "int (*)()" so we only need one. 1148 */ 1149 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int"); 1150 ctc.ctc_argc = 0; 1151 ctc.ctc_flags = 0; 1152 1153 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp, 1154 CTF_ADD_ROOT, &ctc, NULL); 1155 1156 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp, 1157 CTF_ADD_ROOT, dtp->dt_type_func); 1158 1159 /* 1160 * We also insert CTF definitions for the special D intrinsic types 1161 * string and <DYN> into the D container. The string type is added 1162 * as a typedef of char[n]. The <DYN> type is an alias for void. 1163 * We compare types to these special CTF ids throughout the compiler. 1164 */ 1165 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char"); 1166 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long"); 1167 ctr.ctr_nelems = _dtrace_strsize; 1168 1169 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1170 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr)); 1171 1172 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1173 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1174 1175 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1176 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1177 1178 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1179 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1180 1181 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1182 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1183 1184 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR || 1185 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR || 1186 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR || 1187 dtp->dt_type_usymaddr == CTF_ERR) { 1188 dt_dprintf("failed to add intrinsic to D container: %s\n", 1189 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1190 return (set_open_errno(dtp, errp, EDT_CTF)); 1191 } 1192 1193 if (ctf_update(dmp->dm_ctfp) != 0) { 1194 dt_dprintf("failed update D container: %s\n", 1195 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1196 return (set_open_errno(dtp, errp, EDT_CTF)); 1197 } 1198 1199 /* 1200 * Initialize the integer description table used to convert integer 1201 * constants to the appropriate types. Refer to the comments above 1202 * dt_node_int() for a complete description of how this table is used. 1203 */ 1204 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) { 1205 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY, 1206 dtp->dt_ints[i].did_name, &dtt) != 0) { 1207 dt_dprintf("failed to lookup integer type %s: %s\n", 1208 dtp->dt_ints[i].did_name, 1209 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1210 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1211 } 1212 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp; 1213 dtp->dt_ints[i].did_type = dtt.dtt_type; 1214 } 1215 1216 /* 1217 * Now that we've created the "C" and "D" containers, move them to the 1218 * start of the module list so that these types and symbols are found 1219 * first (for stability) when iterating through the module list. 1220 */ 1221 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs); 1222 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs); 1223 1224 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs); 1225 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs); 1226 1227 if (dt_pfdict_create(dtp) == -1) 1228 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1229 1230 /* 1231 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default 1232 * because without /dev/dtrace open, we will not be able to load the 1233 * names and attributes of any providers or probes from the kernel. 1234 */ 1235 if (flags & DTRACE_O_NODEV) 1236 dtp->dt_cflags |= DTRACE_C_ZDEFS; 1237 1238 /* 1239 * Load hard-wired inlines into the definition cache by calling the 1240 * compiler on the raw definition string defined above. 1241 */ 1242 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire, 1243 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) { 1244 dt_dprintf("failed to load hard-wired definitions: %s\n", 1245 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1246 return (set_open_errno(dtp, errp, EDT_HARDWIRE)); 1247 } 1248 1249 dt_program_destroy(dtp, pgp); 1250 1251 /* 1252 * Set up the default DTrace library path. Once set, the next call to 1253 * dt_compile() will compile all the libraries. We intentionally defer 1254 * library processing to improve overhead for clients that don't ever 1255 * compile, and to provide better error reporting (because the full 1256 * reporting of compiler errors requires dtrace_open() to succeed). 1257 */ 1258 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0) 1259 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1260 1261 return (dtp); 1262 } 1263 1264 dtrace_hdl_t * 1265 dtrace_open(int version, int flags, int *errp) 1266 { 1267 return (dt_vopen(version, flags, errp, NULL, NULL)); 1268 } 1269 1270 dtrace_hdl_t * 1271 dtrace_vopen(int version, int flags, int *errp, 1272 const dtrace_vector_t *vector, void *arg) 1273 { 1274 return (dt_vopen(version, flags, errp, vector, arg)); 1275 } 1276 1277 void 1278 dtrace_close(dtrace_hdl_t *dtp) 1279 { 1280 dt_ident_t *idp, *ndp; 1281 dt_module_t *dmp; 1282 dt_provider_t *pvp; 1283 dtrace_prog_t *pgp; 1284 dt_xlator_t *dxp; 1285 dt_dirpath_t *dirp; 1286 int i; 1287 1288 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL) 1289 dt_program_destroy(dtp, pgp); 1290 1291 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL) 1292 dt_xlator_destroy(dtp, dxp); 1293 1294 dt_free(dtp, dtp->dt_xlatormap); 1295 1296 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) { 1297 ndp = idp->di_next; 1298 dt_ident_destroy(idp); 1299 } 1300 1301 if (dtp->dt_macros != NULL) 1302 dt_idhash_destroy(dtp->dt_macros); 1303 if (dtp->dt_aggs != NULL) 1304 dt_idhash_destroy(dtp->dt_aggs); 1305 if (dtp->dt_globals != NULL) 1306 dt_idhash_destroy(dtp->dt_globals); 1307 if (dtp->dt_tls != NULL) 1308 dt_idhash_destroy(dtp->dt_tls); 1309 1310 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL) 1311 dt_module_destroy(dtp, dmp); 1312 1313 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL) 1314 dt_provider_destroy(dtp, pvp); 1315 1316 if (dtp->dt_procs != NULL) 1317 dt_proc_hash_destroy(dtp); 1318 1319 if (dtp->dt_fd != -1) 1320 (void) close(dtp->dt_fd); 1321 if (dtp->dt_ftfd != -1) 1322 (void) close(dtp->dt_ftfd); 1323 if (dtp->dt_cdefs_fd != -1) 1324 (void) close(dtp->dt_cdefs_fd); 1325 if (dtp->dt_ddefs_fd != -1) 1326 (void) close(dtp->dt_ddefs_fd); 1327 if (dtp->dt_stdout_fd != -1) 1328 (void) close(dtp->dt_stdout_fd); 1329 1330 dt_epid_destroy(dtp); 1331 dt_aggid_destroy(dtp); 1332 dt_format_destroy(dtp); 1333 dt_buffered_destroy(dtp); 1334 dt_aggregate_destroy(dtp); 1335 free(dtp->dt_buf.dtbd_data); 1336 dt_pfdict_destroy(dtp); 1337 dt_provmod_destroy(&dtp->dt_provmod); 1338 dt_dof_fini(dtp); 1339 1340 for (i = 1; i < dtp->dt_cpp_argc; i++) 1341 free(dtp->dt_cpp_argv[i]); 1342 1343 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) { 1344 dt_list_delete(&dtp->dt_lib_path, dirp); 1345 free(dirp->dir_path); 1346 free(dirp); 1347 } 1348 1349 free(dtp->dt_cpp_argv); 1350 free(dtp->dt_cpp_path); 1351 free(dtp->dt_ld_path); 1352 1353 free(dtp->dt_mods); 1354 free(dtp->dt_provs); 1355 free(dtp); 1356 } 1357 1358 int 1359 dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods) 1360 { 1361 dt_provmod_t *prov; 1362 int i = 0; 1363 1364 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) { 1365 if (i < nmods) 1366 mods[i] = prov->dp_name; 1367 } 1368 1369 return (i); 1370 } 1371 1372 int 1373 dtrace_ctlfd(dtrace_hdl_t *dtp) 1374 { 1375 return (dtp->dt_fd); 1376 } 1377