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 2008 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_1_6 DT_VERSION_NUMBER(1, 6, 0) 106 #define DT_VERS_1_6_1 DT_VERSION_NUMBER(1, 6, 1) 107 #define DT_VERS_1_6_2 DT_VERSION_NUMBER(1, 6, 2) 108 #define DT_VERS_LATEST DT_VERS_1_6_2 109 #define DT_VERS_STRING "Sun D 1.6.2" 110 111 const dt_version_t _dtrace_versions[] = { 112 DT_VERS_1_0, /* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */ 113 DT_VERS_1_1, /* D API 1.1.0 Solaris Express 6/05 */ 114 DT_VERS_1_2, /* D API 1.2.0 Solaris 10 Update 1 */ 115 DT_VERS_1_2_1, /* D API 1.2.1 Solaris Express 4/06 */ 116 DT_VERS_1_2_2, /* D API 1.2.2 Solaris Express 6/06 */ 117 DT_VERS_1_3, /* D API 1.3 Solaris Express 10/06 */ 118 DT_VERS_1_4, /* D API 1.4 Solaris Express 2/07 */ 119 DT_VERS_1_4_1, /* D API 1.4.1 Solaris Express 4/07 */ 120 DT_VERS_1_5, /* D API 1.5 Solaris Express 7/07 */ 121 DT_VERS_1_6, /* D API 1.6 */ 122 DT_VERS_1_6_1, /* D API 1.6.1 */ 123 DT_VERS_1_6_2, /* D API 1.6.2 */ 124 0 125 }; 126 127 /* 128 * Table of global identifiers. This is used to populate the global identifier 129 * hash when a new dtrace client open occurs. For more info see dt_ident.h. 130 * The global identifiers that represent functions use the dt_idops_func ops 131 * and specify the private data pointer as a prototype string which is parsed 132 * when the identifier is first encountered. These prototypes look like ANSI 133 * C function prototypes except that the special symbol "@" can be used as a 134 * wildcard to represent a single parameter of any type (i.e. any dt_node_t). 135 * The standard "..." notation can also be used to represent varargs. An empty 136 * parameter list is taken to mean void (that is, no arguments are permitted). 137 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional 138 * argument. 139 */ 140 static const dt_ident_t _dtrace_globals[] = { 141 { "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0, 142 &dt_idops_func, "void *(size_t)" }, 143 { "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0, 144 &dt_idops_type, "int64_t" }, 145 { "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0, 146 &dt_idops_type, "int64_t" }, 147 { "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0, 148 &dt_idops_type, "int64_t" }, 149 { "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0, 150 &dt_idops_type, "int64_t" }, 151 { "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0, 152 &dt_idops_type, "int64_t" }, 153 { "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0, 154 &dt_idops_type, "int64_t" }, 155 { "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0, 156 &dt_idops_type, "int64_t" }, 157 { "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0, 158 &dt_idops_type, "int64_t" }, 159 { "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0, 160 &dt_idops_type, "int64_t" }, 161 { "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0, 162 &dt_idops_type, "int64_t" }, 163 { "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0, 164 &dt_idops_args, NULL }, 165 { "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0, 166 &dt_idops_func, "void(@)" }, 167 { "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0, 168 &dt_idops_func, "string(const char *)" }, 169 { "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0, 170 &dt_idops_func, "void(void *, void *, size_t)" }, 171 { "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT, 172 DT_ATTR_STABCMN, DT_VERS_1_0, 173 &dt_idops_func, "void()" }, 174 { "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0, 175 &dt_idops_type, "uintptr_t" }, 176 { "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0, 177 &dt_idops_func, "void(int)" }, 178 { "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN, 179 DT_VERS_1_0, &dt_idops_func, "string(const char *)" }, 180 { "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0, 181 &dt_idops_func, "void(...)" }, 182 { "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0, 183 &dt_idops_func, "void(int)" }, 184 { "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0, 185 &dt_idops_func, "void *(uintptr_t, size_t)" }, 186 { "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR, 187 DT_ATTR_STABCMN, DT_VERS_1_0, 188 &dt_idops_func, "string(uintptr_t, [size_t])" }, 189 { "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN, 190 DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" }, 191 { "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0, 192 &dt_idops_func, "void(void *, uintptr_t, size_t)" }, 193 { "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR, 194 DT_ATTR_STABCMN, DT_VERS_1_0, 195 &dt_idops_func, "void(char *, uintptr_t, size_t)" }, 196 { "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0, 197 &dt_idops_func, "void()" }, 198 { "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD, 199 { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE, 200 DTRACE_CLASS_COMMON }, DT_VERS_1_0, 201 &dt_idops_type, "genunix`kthread_t *" }, 202 { "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME, 203 DT_ATTR_EVOLCMN, DT_VERS_1_0, 204 &dt_idops_func, "string(void *, int64_t)" }, 205 { "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN, 206 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 207 { "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0, 208 &dt_idops_func, "string(const char *)" }, 209 { "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0, 210 &dt_idops_func, "void(int)" }, 211 { "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0, 212 &dt_idops_type, "uint_t" }, 213 { "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0, 214 &dt_idops_type, "int" }, 215 { "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME, 216 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 217 { "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0, 218 &dt_idops_func, "void(int)" }, 219 { "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN, 220 DT_VERS_1_1, &dt_idops_func, "void(@, ...)" }, 221 { "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN, 222 DT_VERS_1_0, &dt_idops_func, "void()" }, 223 { "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 224 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 225 { "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR, 226 DT_ATTR_EVOLCMN, DT_VERS_1_0, 227 &dt_idops_func, "genunix`major_t(genunix`dev_t)" }, 228 { "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR, 229 DT_ATTR_EVOLCMN, DT_VERS_1_0, 230 &dt_idops_func, "genunix`minor_t(genunix`dev_t)" }, 231 { "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 232 &dt_idops_func, "uint32_t(uint32_t)" }, 233 { "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 234 &dt_idops_func, "uint64_t(uint64_t)" }, 235 { "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 236 &dt_idops_func, "uint16_t(uint16_t)" }, 237 { "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0, 238 &dt_idops_type, "gid_t" }, 239 { "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0, 240 &dt_idops_type, "uint_t" }, 241 { "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 242 &dt_idops_func, "int(const char *, const char *, [int])" }, 243 { "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN, 244 DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" }, 245 { "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN, 246 DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" }, 247 { "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN, 248 DT_VERS_1_5, &dt_idops_func, "string(int, void *)" }, 249 { "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0, 250 &dt_idops_type, "uint_t" }, 251 { "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 252 &dt_idops_func, "stack(...)" }, 253 { "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0, 254 &dt_idops_func, "string(int64_t)" }, 255 { "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE, 256 DT_ATTR_STABCMN, DT_VERS_1_0, 257 &dt_idops_func, "void(@, int32_t, int32_t, ...)" }, 258 { "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0, 259 &dt_idops_func, "void(@)" }, 260 { "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0, 261 &dt_idops_func, "void(@)" }, 262 { "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN, 263 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 264 { "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE, 265 DT_ATTR_STABCMN, DT_VERS_1_0, 266 &dt_idops_func, "size_t(mblk_t *)" }, 267 { "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE, 268 DT_ATTR_STABCMN, DT_VERS_1_0, 269 &dt_idops_func, "size_t(mblk_t *)" }, 270 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED, 271 DT_ATTR_EVOLCMN, DT_VERS_1_0, 272 &dt_idops_func, "int(genunix`kmutex_t *)" }, 273 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER, 274 DT_ATTR_EVOLCMN, DT_VERS_1_0, 275 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" }, 276 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE, 277 DT_ATTR_EVOLCMN, DT_VERS_1_0, 278 &dt_idops_func, "int(genunix`kmutex_t *)" }, 279 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN, 280 DT_ATTR_EVOLCMN, DT_VERS_1_0, 281 &dt_idops_func, "int(genunix`kmutex_t *)" }, 282 { "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 283 &dt_idops_func, "uint32_t(uint32_t)" }, 284 { "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3, 285 &dt_idops_func, "uint64_t(uint64_t)" }, 286 { "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3, 287 &dt_idops_func, "uint16_t(uint16_t)" }, 288 { "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN, 289 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 290 { "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0, 291 &dt_idops_func, "void()" }, 292 { "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0, 293 &dt_idops_type, "pid_t" }, 294 { "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0, 295 &dt_idops_type, "pid_t" }, 296 { "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0, 297 &dt_idops_func, "void(@, ...)" }, 298 { "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0, 299 &dt_idops_func, "void(@, ...)" }, 300 { "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC, 301 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 302 { "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD, 303 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 304 { "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME, 305 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 306 { "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV, 307 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 308 { "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF, 309 DT_ATTR_STABCMN, DT_VERS_1_0, 310 &dt_idops_func, "int(pid_t)" }, 311 { "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE, 312 DT_ATTR_STABCMN, DT_VERS_1_0, 313 &dt_idops_func, "void(@, ...)" }, 314 { "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0, 315 &dt_idops_func, "void(int)" }, 316 { "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0, 317 &dt_idops_func, "int()" }, 318 { "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1, 319 &dt_idops_func, "int(const char *, const char *, [int])" }, 320 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER, 321 DT_ATTR_EVOLCMN, DT_VERS_1_0, 322 &dt_idops_func, "int(genunix`krwlock_t *)" }, 323 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD, 324 DT_ATTR_EVOLCMN, DT_VERS_1_0, 325 &dt_idops_func, "int(genunix`krwlock_t *)" }, 326 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD, 327 DT_ATTR_EVOLCMN, DT_VERS_1_0, 328 &dt_idops_func, "int(genunix`krwlock_t *)" }, 329 { "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 330 &dt_idops_type, "void" }, 331 { "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN, 332 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" }, 333 { "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE, 334 DT_ATTR_STABCMN, DT_VERS_1_0, 335 &dt_idops_func, "void(int)" }, 336 { "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION, 337 DT_ATTR_STABCMN, DT_VERS_1_0, 338 &dt_idops_func, "int()" }, 339 { "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0, 340 &dt_idops_func, "stack(...)" }, 341 { "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH, 342 DT_ATTR_STABCMN, DT_VERS_1_0, 343 &dt_idops_type, "uint32_t" }, 344 { "stddev", DT_IDENT_AGGFUNC, 0, DTRACEAGG_STDDEV, DT_ATTR_STABCMN, 345 DT_VERS_1_6, &dt_idops_func, "void(@)" }, 346 { "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0, 347 &dt_idops_func, "void()" }, 348 { "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 349 &dt_idops_func, "string(const char *, char)" }, 350 { "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0, 351 &dt_idops_func, "size_t(const char *)" }, 352 { "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0, 353 &dt_idops_func, "string(const char *, const char *)" }, 354 { "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1, 355 &dt_idops_func, "string(const char *, char)" }, 356 { "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 357 &dt_idops_func, "string(const char *, const char *)" }, 358 { "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1, 359 &dt_idops_func, "string(const char *, const char *)" }, 360 { "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1, 361 &dt_idops_func, "string(const char *, int, [int])" }, 362 { "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0, 363 &dt_idops_func, "void(@)" }, 364 { "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN, 365 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" }, 366 { "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0, 367 &dt_idops_func, "void(@, ...)" }, 368 { "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0, 369 &dt_idops_type, "void" }, 370 { "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0, 371 &dt_idops_type, "id_t" }, 372 { "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP, 373 DT_ATTR_STABCMN, DT_VERS_1_0, 374 &dt_idops_type, "uint64_t" }, 375 { "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0, 376 &dt_idops_func, "void(@)" }, 377 { "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM, 378 DT_ATTR_STABCMN, DT_VERS_1_0, 379 &dt_idops_func, "void(@, size_t)" }, 380 { "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN, 381 DT_VERS_1_0, &dt_idops_func, "void(...)" }, 382 { "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN, 383 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 384 { "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN, 385 DT_VERS_1_2, &dt_idops_type, "uint64_t" }, 386 { "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 387 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 388 { "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0, 389 &dt_idops_type, "uid_t" }, 390 { "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN, 391 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 392 { "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0, 393 &dt_idops_regs, NULL }, 394 { "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0, 395 &dt_idops_func, "stack(...)" }, 396 { "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH, 397 DT_ATTR_STABCMN, DT_VERS_1_2, 398 &dt_idops_type, "uint32_t" }, 399 { "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN, 400 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" }, 401 { "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP, 402 DT_ATTR_STABCMN, DT_VERS_1_0, 403 &dt_idops_type, "uint64_t" }, 404 { "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP, 405 DT_ATTR_STABCMN, DT_VERS_1_0, 406 &dt_idops_type, "int64_t" }, 407 { "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME, 408 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" }, 409 { NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL } 410 }; 411 412 /* 413 * Tables of ILP32 intrinsic integer and floating-point type templates to use 414 * to populate the dynamic "C" CTF type container. 415 */ 416 static const dt_intrinsic_t _dtrace_intrinsics_32[] = { 417 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 418 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 419 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 420 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 421 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 422 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 423 { "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 424 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 425 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 426 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 427 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 428 { "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 429 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 430 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 431 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 432 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 433 { "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER }, 434 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 435 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 436 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 437 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 438 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 439 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 440 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 441 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 442 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 443 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 444 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 445 { NULL, { 0, 0, 0 }, 0 } 446 }; 447 448 /* 449 * Tables of LP64 intrinsic integer and floating-point type templates to use 450 * to populate the dynamic "C" CTF type container. 451 */ 452 static const dt_intrinsic_t _dtrace_intrinsics_64[] = { 453 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER }, 454 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 455 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER }, 456 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 457 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 458 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 459 { "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 460 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 461 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 462 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER }, 463 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER }, 464 { "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 465 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER }, 466 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER }, 467 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER }, 468 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER }, 469 { "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER }, 470 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER }, 471 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER }, 472 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT }, 473 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT }, 474 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT }, 475 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT }, 476 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT }, 477 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT }, 478 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT }, 479 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT }, 480 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT }, 481 { NULL, { 0, 0, 0 }, 0 } 482 }; 483 484 /* 485 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container. 486 * These aliases ensure that D definitions can use typical <sys/types.h> names. 487 */ 488 static const dt_typedef_t _dtrace_typedefs_32[] = { 489 { "char", "int8_t" }, 490 { "short", "int16_t" }, 491 { "int", "int32_t" }, 492 { "long long", "int64_t" }, 493 { "int", "intptr_t" }, 494 { "int", "ssize_t" }, 495 { "unsigned char", "uint8_t" }, 496 { "unsigned short", "uint16_t" }, 497 { "unsigned", "uint32_t" }, 498 { "unsigned long long", "uint64_t" }, 499 { "unsigned char", "uchar_t" }, 500 { "unsigned short", "ushort_t" }, 501 { "unsigned", "uint_t" }, 502 { "unsigned long", "ulong_t" }, 503 { "unsigned long long", "u_longlong_t" }, 504 { "int", "ptrdiff_t" }, 505 { "unsigned", "uintptr_t" }, 506 { "unsigned", "size_t" }, 507 { "long", "id_t" }, 508 { "long", "pid_t" }, 509 { NULL, NULL } 510 }; 511 512 /* 513 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container. 514 * These aliases ensure that D definitions can use typical <sys/types.h> names. 515 */ 516 static const dt_typedef_t _dtrace_typedefs_64[] = { 517 { "char", "int8_t" }, 518 { "short", "int16_t" }, 519 { "int", "int32_t" }, 520 { "long", "int64_t" }, 521 { "long", "intptr_t" }, 522 { "long", "ssize_t" }, 523 { "unsigned char", "uint8_t" }, 524 { "unsigned short", "uint16_t" }, 525 { "unsigned", "uint32_t" }, 526 { "unsigned long", "uint64_t" }, 527 { "unsigned char", "uchar_t" }, 528 { "unsigned short", "ushort_t" }, 529 { "unsigned", "uint_t" }, 530 { "unsigned long", "ulong_t" }, 531 { "unsigned long long", "u_longlong_t" }, 532 { "long", "ptrdiff_t" }, 533 { "unsigned long", "uintptr_t" }, 534 { "unsigned long", "size_t" }, 535 { "int", "id_t" }, 536 { "int", "pid_t" }, 537 { NULL, NULL } 538 }; 539 540 /* 541 * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[] 542 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 543 */ 544 static const dt_intdesc_t _dtrace_ints_32[] = { 545 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 546 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 547 { "long", NULL, CTF_ERR, 0x7fffffffULL }, 548 { "unsigned long", NULL, CTF_ERR, 0xffffffffULL }, 549 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 550 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 551 }; 552 553 /* 554 * Tables of LP64 integer type templates used to populate the dtp->dt_ints[] 555 * cache when a new dtrace client open occurs. Values are set by dtrace_open(). 556 */ 557 static const dt_intdesc_t _dtrace_ints_64[] = { 558 { "int", NULL, CTF_ERR, 0x7fffffffULL }, 559 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL }, 560 { "long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 561 { "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL }, 562 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL }, 563 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL } 564 }; 565 566 /* 567 * Table of macro variable templates used to populate the macro identifier hash 568 * when a new dtrace client open occurs. Values are set by dtrace_update(). 569 */ 570 static const dt_ident_t _dtrace_macros[] = { 571 { "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 572 { "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 573 { "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 574 { "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 575 { "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 576 { "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 577 { "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 578 { "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 579 { "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 580 { "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 581 { "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 }, 582 { NULL, 0, 0, 0, { 0, 0, 0 }, 0 } 583 }; 584 585 /* 586 * Hard-wired definition string to be compiled and cached every time a new 587 * DTrace library handle is initialized. This string should only be used to 588 * contain definitions that should be present regardless of DTRACE_O_NOLIBS. 589 */ 590 static const char _dtrace_hardwire[] = "\ 591 inline long NULL = 0; \n\ 592 #pragma D binding \"1.0\" NULL\n\ 593 "; 594 595 /* 596 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV. 597 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel. 598 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are 599 * relying on the fact that when running dtrace(1M), isaexec will invoke the 600 * binary with the same bitness as the kernel, which is what we want by default 601 * when generating our DIF. The user can override the choice using oflags. 602 */ 603 static const dtrace_conf_t _dtrace_conf = { 604 DIF_VERSION, /* dtc_difversion */ 605 DIF_DIR_NREGS, /* dtc_difintregs */ 606 DIF_DTR_NREGS, /* dtc_diftupregs */ 607 CTF_MODEL_NATIVE /* dtc_ctfmodel */ 608 }; 609 610 const dtrace_attribute_t _dtrace_maxattr = { 611 DTRACE_STABILITY_MAX, 612 DTRACE_STABILITY_MAX, 613 DTRACE_CLASS_MAX 614 }; 615 616 const dtrace_attribute_t _dtrace_defattr = { 617 DTRACE_STABILITY_STABLE, 618 DTRACE_STABILITY_STABLE, 619 DTRACE_CLASS_COMMON 620 }; 621 622 const dtrace_attribute_t _dtrace_symattr = { 623 DTRACE_STABILITY_PRIVATE, 624 DTRACE_STABILITY_PRIVATE, 625 DTRACE_CLASS_UNKNOWN 626 }; 627 628 const dtrace_attribute_t _dtrace_typattr = { 629 DTRACE_STABILITY_PRIVATE, 630 DTRACE_STABILITY_PRIVATE, 631 DTRACE_CLASS_UNKNOWN 632 }; 633 634 const dtrace_attribute_t _dtrace_prvattr = { 635 DTRACE_STABILITY_PRIVATE, 636 DTRACE_STABILITY_PRIVATE, 637 DTRACE_CLASS_UNKNOWN 638 }; 639 640 const dtrace_pattr_t _dtrace_prvdesc = { 641 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 642 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 643 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 644 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 645 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON }, 646 }; 647 648 const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */ 649 const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */ 650 651 const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */ 652 const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */ 653 654 int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */ 655 int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */ 656 uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */ 657 uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */ 658 uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */ 659 uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */ 660 size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */ 661 int _dtrace_argmax = 32; /* default maximum number of probe arguments */ 662 663 int _dtrace_debug = 0; /* debug messages enabled (off) */ 664 const char *const _dtrace_version = DT_VERS_STRING; /* API version string */ 665 int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */ 666 667 typedef struct dt_fdlist { 668 int *df_fds; /* array of provider driver file descriptors */ 669 uint_t df_ents; /* number of valid elements in df_fds[] */ 670 uint_t df_size; /* size of df_fds[] */ 671 } dt_fdlist_t; 672 673 #pragma init(_dtrace_init) 674 void 675 _dtrace_init(void) 676 { 677 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL; 678 679 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) { 680 if (rd_init(_dtrace_rdvers) == RD_OK) 681 break; 682 } 683 } 684 685 static dtrace_hdl_t * 686 set_open_errno(dtrace_hdl_t *dtp, int *errp, int err) 687 { 688 if (dtp != NULL) 689 dtrace_close(dtp); 690 if (errp != NULL) 691 *errp = err; 692 return (NULL); 693 } 694 695 static void 696 dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp) 697 { 698 dt_provmod_t *prov; 699 char path[PATH_MAX]; 700 struct dirent *dp, *ep; 701 DIR *dirp; 702 int fd; 703 704 if ((dirp = opendir(_dtrace_provdir)) == NULL) 705 return; /* failed to open directory; just skip it */ 706 707 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1); 708 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1); 709 710 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) { 711 if (dp->d_name[0] == '.') 712 continue; /* skip "." and ".." */ 713 714 if (dfp->df_ents == dfp->df_size) { 715 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16; 716 int *fds = realloc(dfp->df_fds, size * sizeof (int)); 717 718 if (fds == NULL) 719 break; /* skip the rest of this directory */ 720 721 dfp->df_fds = fds; 722 dfp->df_size = size; 723 } 724 725 (void) snprintf(path, sizeof (path), "%s/%s", 726 _dtrace_provdir, dp->d_name); 727 728 if ((fd = open(path, O_RDONLY)) == -1) 729 continue; /* failed to open driver; just skip it */ 730 731 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) || 732 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) { 733 free(prov); 734 (void) close(fd); 735 break; 736 } 737 738 (void) strcpy(prov->dp_name, dp->d_name); 739 prov->dp_next = *provmod; 740 *provmod = prov; 741 742 dt_dprintf("opened provider %s\n", dp->d_name); 743 dfp->df_fds[dfp->df_ents++] = fd; 744 } 745 746 (void) closedir(dirp); 747 } 748 749 static void 750 dt_provmod_destroy(dt_provmod_t **provmod) 751 { 752 dt_provmod_t *next, *current; 753 754 for (current = *provmod; current != NULL; current = next) { 755 next = current->dp_next; 756 free(current->dp_name); 757 free(current); 758 } 759 760 *provmod = NULL; 761 } 762 763 static const char * 764 dt_get_sysinfo(int cmd, char *buf, size_t len) 765 { 766 ssize_t rv = sysinfo(cmd, buf, len); 767 char *p = buf; 768 769 if (rv < 0 || rv > len) 770 (void) snprintf(buf, len, "%s", "Unknown"); 771 772 while ((p = strchr(p, '.')) != NULL) 773 *p++ = '_'; 774 775 return (buf); 776 } 777 778 static dtrace_hdl_t * 779 dt_vopen(int version, int flags, int *errp, 780 const dtrace_vector_t *vector, void *arg) 781 { 782 dtrace_hdl_t *dtp = NULL; 783 int dtfd = -1, ftfd = -1, fterr = 0; 784 dtrace_prog_t *pgp; 785 dt_module_t *dmp; 786 dt_provmod_t *provmod = NULL; 787 int i, err; 788 struct rlimit rl; 789 790 const dt_intrinsic_t *dinp; 791 const dt_typedef_t *dtyp; 792 const dt_ident_t *idp; 793 794 dtrace_typeinfo_t dtt; 795 ctf_funcinfo_t ctc; 796 ctf_arinfo_t ctr; 797 798 dt_fdlist_t df = { NULL, 0, 0 }; 799 800 char isadef[32], utsdef[32]; 801 char s1[64], s2[64]; 802 803 if (version <= 0) 804 return (set_open_errno(dtp, errp, EINVAL)); 805 806 if (version > DTRACE_VERSION) 807 return (set_open_errno(dtp, errp, EDT_VERSION)); 808 809 if (version < DTRACE_VERSION) { 810 /* 811 * Currently, increasing the library version number is used to 812 * denote a binary incompatible change. That is, a consumer 813 * of the library cannot run on a version of the library with 814 * a higher DTRACE_VERSION number than the consumer compiled 815 * against. Once the library API has been committed to, 816 * backwards binary compatibility will be required; at that 817 * time, this check should change to return EDT_OVERSION only 818 * if the specified version number is less than the version 819 * number at the time of interface commitment. 820 */ 821 return (set_open_errno(dtp, errp, EDT_OVERSION)); 822 } 823 824 if (flags & ~DTRACE_O_MASK) 825 return (set_open_errno(dtp, errp, EINVAL)); 826 827 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32)) 828 return (set_open_errno(dtp, errp, EINVAL)); 829 830 if (vector == NULL && arg != NULL) 831 return (set_open_errno(dtp, errp, EINVAL)); 832 833 if (elf_version(EV_CURRENT) == EV_NONE) 834 return (set_open_errno(dtp, errp, EDT_ELFVERSION)); 835 836 if (vector != NULL || (flags & DTRACE_O_NODEV)) 837 goto alloc; /* do not attempt to open dtrace device */ 838 839 /* 840 * Before we get going, crank our limit on file descriptors up to the 841 * hard limit. This is to allow for the fact that libproc keeps file 842 * descriptors to objects open for the lifetime of the proc handle; 843 * without raising our hard limit, we would have an acceptably small 844 * bound on the number of processes that we could concurrently 845 * instrument with the pid provider. 846 */ 847 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) { 848 rl.rlim_cur = rl.rlim_max; 849 (void) setrlimit(RLIMIT_NOFILE, &rl); 850 } 851 852 /* 853 * Get the device path of each of the providers. We hold them open 854 * in the df.df_fds list until we open the DTrace driver itself, 855 * allowing us to see all of the probes provided on this system. Once 856 * we have the DTrace driver open, we can safely close all the providers 857 * now that they have registered with the framework. 858 */ 859 dt_provmod_open(&provmod, &df); 860 861 dtfd = open("/dev/dtrace/dtrace", O_RDWR); 862 err = errno; /* save errno from opening dtfd */ 863 864 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR); 865 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */ 866 867 while (df.df_ents-- != 0) 868 (void) close(df.df_fds[df.df_ents]); 869 870 free(df.df_fds); 871 872 /* 873 * If we failed to open the dtrace device, fail dtrace_open(). 874 * We convert some kernel errnos to custom libdtrace errnos to 875 * improve the resulting message from the usual strerror(). 876 */ 877 if (dtfd == -1) { 878 dt_provmod_destroy(&provmod); 879 switch (err) { 880 case ENOENT: 881 err = EDT_NOENT; 882 break; 883 case EBUSY: 884 err = EDT_BUSY; 885 break; 886 case EACCES: 887 err = EDT_ACCESS; 888 break; 889 } 890 return (set_open_errno(dtp, errp, err)); 891 } 892 893 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC); 894 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC); 895 896 alloc: 897 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL) 898 return (set_open_errno(dtp, errp, EDT_NOMEM)); 899 900 bzero(dtp, sizeof (dtrace_hdl_t)); 901 dtp->dt_oflags = flags; 902 dtp->dt_prcmode = DT_PROC_STOP_PREINIT; 903 dtp->dt_linkmode = DT_LINK_KERNEL; 904 dtp->dt_linktype = DT_LTYP_ELF; 905 dtp->dt_xlatemode = DT_XL_STATIC; 906 dtp->dt_stdcmode = DT_STDC_XA; 907 dtp->dt_version = version; 908 dtp->dt_fd = dtfd; 909 dtp->dt_ftfd = ftfd; 910 dtp->dt_fterr = fterr; 911 dtp->dt_cdefs_fd = -1; 912 dtp->dt_ddefs_fd = -1; 913 dtp->dt_stdout_fd = -1; 914 dtp->dt_modbuckets = _dtrace_strbuckets; 915 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *)); 916 dtp->dt_provbuckets = _dtrace_strbuckets; 917 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *)); 918 dt_proc_hash_create(dtp); 919 dtp->dt_vmax = DT_VERS_LATEST; 920 dtp->dt_cpp_path = strdup(_dtrace_defcpp); 921 dtp->dt_cpp_argv = malloc(sizeof (char *)); 922 dtp->dt_cpp_argc = 1; 923 dtp->dt_cpp_args = 1; 924 dtp->dt_ld_path = strdup(_dtrace_defld); 925 dtp->dt_provmod = provmod; 926 dtp->dt_vector = vector; 927 dtp->dt_varg = arg; 928 dt_dof_init(dtp); 929 (void) uname(&dtp->dt_uts); 930 931 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL || 932 dtp->dt_procs == NULL || dtp->dt_ld_path == NULL || 933 dtp->dt_cpp_path == NULL || dtp->dt_cpp_argv == NULL) 934 return (set_open_errno(dtp, errp, EDT_NOMEM)); 935 936 for (i = 0; i < DTRACEOPT_MAX; i++) 937 dtp->dt_options[i] = DTRACEOPT_UNSET; 938 939 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path); 940 941 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u", 942 (uint_t)(sizeof (void *) * NBBY)); 943 944 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s", 945 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)), 946 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2))); 947 948 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL || 949 dt_cpp_add_arg(dtp, "-D__unix") == NULL || 950 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL || 951 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL || 952 dt_cpp_add_arg(dtp, isadef) == NULL || 953 dt_cpp_add_arg(dtp, utsdef) == NULL) 954 return (set_open_errno(dtp, errp, EDT_NOMEM)); 955 956 if (flags & DTRACE_O_NODEV) 957 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf)); 958 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0) 959 return (set_open_errno(dtp, errp, errno)); 960 961 if (flags & DTRACE_O_LP64) 962 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64; 963 else if (flags & DTRACE_O_ILP32) 964 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32; 965 966 #ifdef __sparc 967 /* 968 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h> 969 * and __sparcv9 is defined if we are doing a 64-bit compile. 970 */ 971 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL) 972 return (set_open_errno(dtp, errp, EDT_NOMEM)); 973 974 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 && 975 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL) 976 return (set_open_errno(dtp, errp, EDT_NOMEM)); 977 #endif 978 979 #ifdef __x86 980 /* 981 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit 982 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC, 983 * they are defined exclusive of one another (see PSARC 2004/619). 984 */ 985 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) { 986 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL) 987 return (set_open_errno(dtp, errp, EDT_NOMEM)); 988 } else { 989 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL) 990 return (set_open_errno(dtp, errp, EDT_NOMEM)); 991 } 992 #endif 993 994 if (dtp->dt_conf.dtc_difversion < DIF_VERSION) 995 return (set_open_errno(dtp, errp, EDT_DIFVERS)); 996 997 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) 998 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32)); 999 else 1000 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64)); 1001 1002 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX); 1003 dtp->dt_aggs = dt_idhash_create("aggregation", NULL, 1004 DTRACE_AGGVARIDNONE + 1, UINT_MAX); 1005 1006 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals, 1007 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1008 1009 dtp->dt_tls = dt_idhash_create("thread local", NULL, 1010 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX); 1011 1012 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL || 1013 dtp->dt_globals == NULL || dtp->dt_tls == NULL) 1014 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1015 1016 /* 1017 * Populate the dt_macros identifier hash table by hand: we can't use 1018 * the dt_idhash_populate() mechanism because we're not yet compiling 1019 * and dtrace_update() needs to immediately reference these idents. 1020 */ 1021 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) { 1022 if (dt_idhash_insert(dtp->dt_macros, idp->di_name, 1023 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr, 1024 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw, 1025 idp->di_iarg, 0) == NULL) 1026 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1027 } 1028 1029 /* 1030 * Update the module list using /system/object and load the values for 1031 * the macro variable definitions according to the current process. 1032 */ 1033 dtrace_update(dtp); 1034 1035 /* 1036 * Select the intrinsics and typedefs we want based on the data model. 1037 * The intrinsics are under "C". The typedefs are added under "D". 1038 */ 1039 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) { 1040 dinp = _dtrace_intrinsics_32; 1041 dtyp = _dtrace_typedefs_32; 1042 } else { 1043 dinp = _dtrace_intrinsics_64; 1044 dtyp = _dtrace_typedefs_64; 1045 } 1046 1047 /* 1048 * Create a dynamic CTF container under the "C" scope for intrinsic 1049 * types and types defined in ANSI-C header files that are included. 1050 */ 1051 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL) 1052 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1053 1054 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1055 return (set_open_errno(dtp, errp, EDT_CTF)); 1056 1057 dt_dprintf("created CTF container for %s (%p)\n", 1058 dmp->dm_name, (void *)dmp->dm_ctfp); 1059 1060 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1061 ctf_setspecific(dmp->dm_ctfp, dmp); 1062 1063 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1064 dmp->dm_modid = -1; /* no module ID */ 1065 1066 /* 1067 * Fill the dynamic "C" CTF container with all of the intrinsic 1068 * integer and floating-point types appropriate for this data model. 1069 */ 1070 for (; dinp->din_name != NULL; dinp++) { 1071 if (dinp->din_kind == CTF_K_INTEGER) { 1072 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT, 1073 dinp->din_name, &dinp->din_data); 1074 } else { 1075 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT, 1076 dinp->din_name, &dinp->din_data); 1077 } 1078 1079 if (err == CTF_ERR) { 1080 dt_dprintf("failed to add %s to C container: %s\n", 1081 dinp->din_name, ctf_errmsg( 1082 ctf_errno(dmp->dm_ctfp))); 1083 return (set_open_errno(dtp, errp, EDT_CTF)); 1084 } 1085 } 1086 1087 if (ctf_update(dmp->dm_ctfp) != 0) { 1088 dt_dprintf("failed to update C container: %s\n", 1089 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1090 return (set_open_errno(dtp, errp, EDT_CTF)); 1091 } 1092 1093 /* 1094 * Add intrinsic pointer types that are needed to initialize printf 1095 * format dictionary types (see table in dt_printf.c). 1096 */ 1097 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1098 ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1099 1100 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1101 ctf_lookup_by_name(dmp->dm_ctfp, "char")); 1102 1103 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, 1104 ctf_lookup_by_name(dmp->dm_ctfp, "int")); 1105 1106 if (ctf_update(dmp->dm_ctfp) != 0) { 1107 dt_dprintf("failed to update C container: %s\n", 1108 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1109 return (set_open_errno(dtp, errp, EDT_CTF)); 1110 } 1111 1112 /* 1113 * Create a dynamic CTF container under the "D" scope for types that 1114 * are defined by the D program itself or on-the-fly by the D compiler. 1115 * The "D" CTF container is a child of the "C" CTF container. 1116 */ 1117 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL) 1118 return (set_open_errno(dtp, errp, EDT_NOMEM)); 1119 1120 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL) 1121 return (set_open_errno(dtp, errp, EDT_CTF)); 1122 1123 dt_dprintf("created CTF container for %s (%p)\n", 1124 dmp->dm_name, (void *)dmp->dm_ctfp); 1125 1126 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel); 1127 ctf_setspecific(dmp->dm_ctfp, dmp); 1128 1129 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */ 1130 dmp->dm_modid = -1; /* no module ID */ 1131 1132 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) { 1133 dt_dprintf("failed to import D parent container: %s\n", 1134 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1135 return (set_open_errno(dtp, errp, EDT_CTF)); 1136 } 1137 1138 /* 1139 * Fill the dynamic "D" CTF container with all of the built-in typedefs 1140 * that we need to use for our D variable and function definitions. 1141 * This ensures that basic inttypes.h names are always available to us. 1142 */ 1143 for (; dtyp->dty_src != NULL; dtyp++) { 1144 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1145 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp, 1146 dtyp->dty_src)) == CTF_ERR) { 1147 dt_dprintf("failed to add typedef %s %s to D " 1148 "container: %s", dtyp->dty_src, dtyp->dty_dst, 1149 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1150 return (set_open_errno(dtp, errp, EDT_CTF)); 1151 } 1152 } 1153 1154 /* 1155 * Insert a CTF ID corresponding to a pointer to a type of kind 1156 * CTF_K_FUNCTION we can use in the compiler for function pointers. 1157 * CTF treats all function pointers as "int (*)()" so we only need one. 1158 */ 1159 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int"); 1160 ctc.ctc_argc = 0; 1161 ctc.ctc_flags = 0; 1162 1163 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp, 1164 CTF_ADD_ROOT, &ctc, NULL); 1165 1166 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp, 1167 CTF_ADD_ROOT, dtp->dt_type_func); 1168 1169 /* 1170 * We also insert CTF definitions for the special D intrinsic types 1171 * string and <DYN> into the D container. The string type is added 1172 * as a typedef of char[n]. The <DYN> type is an alias for void. 1173 * We compare types to these special CTF ids throughout the compiler. 1174 */ 1175 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char"); 1176 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long"); 1177 ctr.ctr_nelems = _dtrace_strsize; 1178 1179 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1180 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr)); 1181 1182 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1183 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1184 1185 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1186 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1187 1188 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1189 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1190 1191 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT, 1192 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void")); 1193 1194 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR || 1195 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR || 1196 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR || 1197 dtp->dt_type_usymaddr == CTF_ERR) { 1198 dt_dprintf("failed to add intrinsic to D container: %s\n", 1199 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1200 return (set_open_errno(dtp, errp, EDT_CTF)); 1201 } 1202 1203 if (ctf_update(dmp->dm_ctfp) != 0) { 1204 dt_dprintf("failed update D container: %s\n", 1205 ctf_errmsg(ctf_errno(dmp->dm_ctfp))); 1206 return (set_open_errno(dtp, errp, EDT_CTF)); 1207 } 1208 1209 /* 1210 * Initialize the integer description table used to convert integer 1211 * constants to the appropriate types. Refer to the comments above 1212 * dt_node_int() for a complete description of how this table is used. 1213 */ 1214 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) { 1215 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY, 1216 dtp->dt_ints[i].did_name, &dtt) != 0) { 1217 dt_dprintf("failed to lookup integer type %s: %s\n", 1218 dtp->dt_ints[i].did_name, 1219 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1220 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1221 } 1222 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp; 1223 dtp->dt_ints[i].did_type = dtt.dtt_type; 1224 } 1225 1226 /* 1227 * Now that we've created the "C" and "D" containers, move them to the 1228 * start of the module list so that these types and symbols are found 1229 * first (for stability) when iterating through the module list. 1230 */ 1231 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs); 1232 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs); 1233 1234 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs); 1235 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs); 1236 1237 if (dt_pfdict_create(dtp) == -1) 1238 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1239 1240 /* 1241 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default 1242 * because without /dev/dtrace open, we will not be able to load the 1243 * names and attributes of any providers or probes from the kernel. 1244 */ 1245 if (flags & DTRACE_O_NODEV) 1246 dtp->dt_cflags |= DTRACE_C_ZDEFS; 1247 1248 /* 1249 * Load hard-wired inlines into the definition cache by calling the 1250 * compiler on the raw definition string defined above. 1251 */ 1252 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire, 1253 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) { 1254 dt_dprintf("failed to load hard-wired definitions: %s\n", 1255 dtrace_errmsg(dtp, dtrace_errno(dtp))); 1256 return (set_open_errno(dtp, errp, EDT_HARDWIRE)); 1257 } 1258 1259 dt_program_destroy(dtp, pgp); 1260 1261 /* 1262 * Set up the default DTrace library path. Once set, the next call to 1263 * dt_compile() will compile all the libraries. We intentionally defer 1264 * library processing to improve overhead for clients that don't ever 1265 * compile, and to provide better error reporting (because the full 1266 * reporting of compiler errors requires dtrace_open() to succeed). 1267 */ 1268 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0) 1269 return (set_open_errno(dtp, errp, dtp->dt_errno)); 1270 1271 return (dtp); 1272 } 1273 1274 dtrace_hdl_t * 1275 dtrace_open(int version, int flags, int *errp) 1276 { 1277 return (dt_vopen(version, flags, errp, NULL, NULL)); 1278 } 1279 1280 dtrace_hdl_t * 1281 dtrace_vopen(int version, int flags, int *errp, 1282 const dtrace_vector_t *vector, void *arg) 1283 { 1284 return (dt_vopen(version, flags, errp, vector, arg)); 1285 } 1286 1287 void 1288 dtrace_close(dtrace_hdl_t *dtp) 1289 { 1290 dt_ident_t *idp, *ndp; 1291 dt_module_t *dmp; 1292 dt_provider_t *pvp; 1293 dtrace_prog_t *pgp; 1294 dt_xlator_t *dxp; 1295 dt_dirpath_t *dirp; 1296 int i; 1297 1298 if (dtp->dt_procs != NULL) 1299 dt_proc_hash_destroy(dtp); 1300 1301 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL) 1302 dt_program_destroy(dtp, pgp); 1303 1304 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL) 1305 dt_xlator_destroy(dtp, dxp); 1306 1307 dt_free(dtp, dtp->dt_xlatormap); 1308 1309 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) { 1310 ndp = idp->di_next; 1311 dt_ident_destroy(idp); 1312 } 1313 1314 if (dtp->dt_macros != NULL) 1315 dt_idhash_destroy(dtp->dt_macros); 1316 if (dtp->dt_aggs != NULL) 1317 dt_idhash_destroy(dtp->dt_aggs); 1318 if (dtp->dt_globals != NULL) 1319 dt_idhash_destroy(dtp->dt_globals); 1320 if (dtp->dt_tls != NULL) 1321 dt_idhash_destroy(dtp->dt_tls); 1322 1323 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL) 1324 dt_module_destroy(dtp, dmp); 1325 1326 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL) 1327 dt_provider_destroy(dtp, pvp); 1328 1329 if (dtp->dt_fd != -1) 1330 (void) close(dtp->dt_fd); 1331 if (dtp->dt_ftfd != -1) 1332 (void) close(dtp->dt_ftfd); 1333 if (dtp->dt_cdefs_fd != -1) 1334 (void) close(dtp->dt_cdefs_fd); 1335 if (dtp->dt_ddefs_fd != -1) 1336 (void) close(dtp->dt_ddefs_fd); 1337 if (dtp->dt_stdout_fd != -1) 1338 (void) close(dtp->dt_stdout_fd); 1339 1340 dt_epid_destroy(dtp); 1341 dt_aggid_destroy(dtp); 1342 dt_format_destroy(dtp); 1343 dt_buffered_destroy(dtp); 1344 dt_aggregate_destroy(dtp); 1345 free(dtp->dt_buf.dtbd_data); 1346 dt_pfdict_destroy(dtp); 1347 dt_provmod_destroy(&dtp->dt_provmod); 1348 dt_dof_fini(dtp); 1349 1350 for (i = 1; i < dtp->dt_cpp_argc; i++) 1351 free(dtp->dt_cpp_argv[i]); 1352 1353 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) { 1354 dt_list_delete(&dtp->dt_lib_path, dirp); 1355 free(dirp->dir_path); 1356 free(dirp); 1357 } 1358 1359 free(dtp->dt_cpp_argv); 1360 free(dtp->dt_cpp_path); 1361 free(dtp->dt_ld_path); 1362 1363 free(dtp->dt_mods); 1364 free(dtp->dt_provs); 1365 free(dtp); 1366 } 1367 1368 int 1369 dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods) 1370 { 1371 dt_provmod_t *prov; 1372 int i = 0; 1373 1374 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) { 1375 if (i < nmods) 1376 mods[i] = prov->dp_name; 1377 } 1378 1379 return (i); 1380 } 1381 1382 int 1383 dtrace_ctlfd(dtrace_hdl_t *dtp) 1384 { 1385 return (dtp->dt_fd); 1386 } 1387
Indexes created Sat Nov 21 18:49:29 UTC 2009
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