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 (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2012, Joyent, Inc. All rights reserved.
25 * Copyright (c) 2012 by Delphix. All rights reserved.
26 */
27
28 #include <sys/types.h>
29 #include <sys/modctl.h>
30 #include <sys/systeminfo.h>
31 #include <sys/resource.h>
32
33 #include <libelf.h>
34 #include <strings.h>
35 #include <alloca.h>
36 #include <limits.h>
37 #include <unistd.h>
38 #include <stdlib.h>
39 #include <stdio.h>
40 #include <fcntl.h>
41 #include <errno.h>
42 #include <assert.h>
43
44 #define _POSIX_PTHREAD_SEMANTICS
45 #include <dirent.h>
46 #undef _POSIX_PTHREAD_SEMANTICS
47
48 #include <dt_impl.h>
49 #include <dt_program.h>
50 #include <dt_module.h>
51 #include <dt_printf.h>
52 #include <dt_string.h>
53 #include <dt_provider.h>
54
55 /*
56 * Stability and versioning definitions. These #defines are used in the tables
57 * of identifiers below to fill in the attribute and version fields associated
58 * with each identifier. The DT_ATTR_* macros are a convenience to permit more
59 * concise declarations of common attributes such as Stable/Stable/Common. The
60 * DT_VERS_* macros declare the encoded integer values of all versions used so
61 * far. DT_VERS_LATEST must correspond to the latest version value among all
62 * versions exported by the D compiler. DT_VERS_STRING must be an ASCII string
63 * that contains DT_VERS_LATEST within it along with any suffixes (e.g. Beta).
64 * You must update DT_VERS_LATEST and DT_VERS_STRING when adding a new version,
65 * and then add the new version to the _dtrace_versions[] array declared below.
66 * Refer to the Solaris Dynamic Tracing Guide Stability and Versioning chapters
67 * respectively for an explanation of these DTrace features and their values.
68 *
69 * NOTE: Although the DTrace versioning scheme supports the labeling and
70 * introduction of incompatible changes (e.g. dropping an interface in a
71 * major release), the libdtrace code does not currently support this.
72 * All versions are assumed to strictly inherit from one another. If
73 * we ever need to provide divergent interfaces, this will need work.
74 */
75 #define DT_ATTR_STABCMN { DTRACE_STABILITY_STABLE, \
76 DTRACE_STABILITY_STABLE, DTRACE_CLASS_COMMON }
77
78 #define DT_ATTR_EVOLCMN { DTRACE_STABILITY_EVOLVING, \
79 DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_COMMON \
80 }
81
82 /*
83 * The version number should be increased for every customer visible release
84 * of DTrace. The major number should be incremented when a fundamental
85 * change has been made that would affect all consumers, and would reflect
86 * sweeping changes to DTrace or the D language. The minor number should be
87 * incremented when a change is introduced that could break scripts that had
88 * previously worked; for example, adding a new built-in variable could break
89 * a script which was already using that identifier. The micro number should
90 * be changed when introducing functionality changes or major bug fixes that
91 * do not affect backward compatibility -- this is merely to make capabilities
92 * easily determined from the version number. Minor bugs do not require any
93 * modification to the version number.
94 */
95 #define DT_VERS_1_0 DT_VERSION_NUMBER(1, 0, 0)
96 #define DT_VERS_1_1 DT_VERSION_NUMBER(1, 1, 0)
97 #define DT_VERS_1_2 DT_VERSION_NUMBER(1, 2, 0)
98 #define DT_VERS_1_2_1 DT_VERSION_NUMBER(1, 2, 1)
99 #define DT_VERS_1_2_2 DT_VERSION_NUMBER(1, 2, 2)
100 #define DT_VERS_1_3 DT_VERSION_NUMBER(1, 3, 0)
101 #define DT_VERS_1_4 DT_VERSION_NUMBER(1, 4, 0)
102 #define DT_VERS_1_4_1 DT_VERSION_NUMBER(1, 4, 1)
103 #define DT_VERS_1_5 DT_VERSION_NUMBER(1, 5, 0)
104 #define DT_VERS_1_6 DT_VERSION_NUMBER(1, 6, 0)
105 #define DT_VERS_1_6_1 DT_VERSION_NUMBER(1, 6, 1)
106 #define DT_VERS_1_6_2 DT_VERSION_NUMBER(1, 6, 2)
107 #define DT_VERS_1_6_3 DT_VERSION_NUMBER(1, 6, 3)
108 #define DT_VERS_1_7 DT_VERSION_NUMBER(1, 7, 0)
109 #define DT_VERS_1_7_1 DT_VERSION_NUMBER(1, 7, 1)
110 #define DT_VERS_1_8 DT_VERSION_NUMBER(1, 8, 0)
111 #define DT_VERS_1_8_1 DT_VERSION_NUMBER(1, 8, 1)
112 #define DT_VERS_1_9 DT_VERSION_NUMBER(1, 9, 0)
113 #define DT_VERS_1_9_1 DT_VERSION_NUMBER(1, 9, 1)
114 #define DT_VERS_1_10 DT_VERSION_NUMBER(1, 10, 0)
115 #define DT_VERS_LATEST DT_VERS_1_10
116 #define DT_VERS_STRING "Sun D 1.10"
117
118 const dt_version_t _dtrace_versions[] = {
119 DT_VERS_1_0, /* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */
120 DT_VERS_1_1, /* D API 1.1.0 Solaris Express 6/05 */
121 DT_VERS_1_2, /* D API 1.2.0 Solaris 10 Update 1 */
122 DT_VERS_1_2_1, /* D API 1.2.1 Solaris Express 4/06 */
123 DT_VERS_1_2_2, /* D API 1.2.2 Solaris Express 6/06 */
124 DT_VERS_1_3, /* D API 1.3 Solaris Express 10/06 */
125 DT_VERS_1_4, /* D API 1.4 Solaris Express 2/07 */
126 DT_VERS_1_4_1, /* D API 1.4.1 Solaris Express 4/07 */
127 DT_VERS_1_5, /* D API 1.5 Solaris Express 7/07 */
128 DT_VERS_1_6, /* D API 1.6 */
129 DT_VERS_1_6_1, /* D API 1.6.1 */
130 DT_VERS_1_6_2, /* D API 1.6.2 */
131 DT_VERS_1_6_3, /* D API 1.6.3 */
132 DT_VERS_1_7, /* D API 1.7 */
133 DT_VERS_1_7_1, /* D API 1.7.1 */
134 DT_VERS_1_8, /* D API 1.8 */
135 DT_VERS_1_8_1, /* D API 1.8.1 */
136 DT_VERS_1_9, /* D API 1.9 */
137 DT_VERS_1_9_1, /* D API 1.9.1 */
138 DT_VERS_1_10, /* D API 1.10 */
139 0
140 };
141
142 /*
143 * Table of global identifiers. This is used to populate the global identifier
144 * hash when a new dtrace client open occurs. For more info see dt_ident.h.
145 * The global identifiers that represent functions use the dt_idops_func ops
146 * and specify the private data pointer as a prototype string which is parsed
147 * when the identifier is first encountered. These prototypes look like ANSI
148 * C function prototypes except that the special symbol "@" can be used as a
149 * wildcard to represent a single parameter of any type (i.e. any dt_node_t).
150 * The standard "..." notation can also be used to represent varargs. An empty
151 * parameter list is taken to mean void (that is, no arguments are permitted).
152 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional
153 * argument.
154 */
155 static const dt_ident_t _dtrace_globals[] = {
156 { "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0,
157 &dt_idops_func, "void *(size_t)" },
158 { "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0,
159 &dt_idops_type, "int64_t" },
160 { "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0,
161 &dt_idops_type, "int64_t" },
162 { "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0,
163 &dt_idops_type, "int64_t" },
164 { "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0,
165 &dt_idops_type, "int64_t" },
166 { "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0,
167 &dt_idops_type, "int64_t" },
168 { "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0,
169 &dt_idops_type, "int64_t" },
170 { "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0,
171 &dt_idops_type, "int64_t" },
172 { "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0,
173 &dt_idops_type, "int64_t" },
174 { "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0,
175 &dt_idops_type, "int64_t" },
176 { "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0,
177 &dt_idops_type, "int64_t" },
178 { "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0,
179 &dt_idops_args, NULL },
180 { "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0,
181 &dt_idops_func, "void(@)" },
182 { "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0,
183 &dt_idops_func, "string(const char *)" },
184 { "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0,
185 &dt_idops_func, "void(void *, void *, size_t)" },
186 { "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT,
187 DT_ATTR_STABCMN, DT_VERS_1_0,
188 &dt_idops_func, "void()" },
189 { "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0,
190 &dt_idops_type, "uintptr_t" },
191 { "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0,
192 &dt_idops_func, "void(int)" },
193 { "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN,
194 DT_VERS_1_0, &dt_idops_func, "string(const char *)" },
195 { "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0,
196 &dt_idops_func, "void(...)" },
197 { "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0,
198 &dt_idops_func, "void(int)" },
199 { "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0,
200 &dt_idops_func, "void *(uintptr_t, size_t)" },
201 { "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR,
202 DT_ATTR_STABCMN, DT_VERS_1_0,
203 &dt_idops_func, "string(uintptr_t, [size_t])" },
204 { "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN,
205 DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" },
206 { "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0,
207 &dt_idops_func, "void(void *, uintptr_t, size_t)" },
208 { "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR,
209 DT_ATTR_STABCMN, DT_VERS_1_0,
210 &dt_idops_func, "void(char *, uintptr_t, size_t)" },
211 { "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0,
212 &dt_idops_func, "void()" },
213 { "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD,
214 { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE,
215 DTRACE_CLASS_COMMON }, DT_VERS_1_0,
216 &dt_idops_type, "genunix`kthread_t *" },
217 { "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME,
218 DT_ATTR_EVOLCMN, DT_VERS_1_0,
219 &dt_idops_func, "string(void *, int64_t)" },
220 { "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN,
221 DT_VERS_1_0, &dt_idops_func, "void(...)" },
222 { "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0,
223 &dt_idops_func, "string(const char *)" },
224 { "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0,
225 &dt_idops_func, "void(int)" },
226 { "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0,
227 &dt_idops_type, "uint_t" },
228 { "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0,
229 &dt_idops_type, "int" },
230 { "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME,
231 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
232 { "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0,
233 &dt_idops_func, "void(int)" },
234 { "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN,
235 DT_VERS_1_1, &dt_idops_func, "void(@, ...)" },
236 { "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN,
237 DT_VERS_1_0, &dt_idops_func, "void()" },
238 { "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN,
239 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" },
240 { "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR,
241 DT_ATTR_EVOLCMN, DT_VERS_1_0,
242 &dt_idops_func, "genunix`major_t(genunix`dev_t)" },
243 { "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR,
244 DT_ATTR_EVOLCMN, DT_VERS_1_0,
245 &dt_idops_func, "genunix`minor_t(genunix`dev_t)" },
246 { "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
247 &dt_idops_func, "uint32_t(uint32_t)" },
248 { "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
249 &dt_idops_func, "uint64_t(uint64_t)" },
250 { "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3,
251 &dt_idops_func, "uint16_t(uint16_t)" },
252 { "getf", DT_IDENT_FUNC, 0, DIF_SUBR_GETF, DT_ATTR_STABCMN, DT_VERS_1_10,
253 &dt_idops_func, "file_t *(int)" },
254 { "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0,
255 &dt_idops_type, "gid_t" },
256 { "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0,
257 &dt_idops_type, "uint_t" },
258 { "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1,
259 &dt_idops_func, "int(const char *, const char *, [int])" },
260 { "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN,
261 DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" },
262 { "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN,
263 DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" },
264 { "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN,
265 DT_VERS_1_5, &dt_idops_func, "string(int, void *)" },
266 { "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0,
267 &dt_idops_type, "uint_t" },
268 { "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0,
269 &dt_idops_func, "stack(...)" },
270 { "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0,
271 &dt_idops_func, "string(int64_t, [int])" },
272 { "llquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LLQUANTIZE, DT_ATTR_STABCMN,
273 DT_VERS_1_7, &dt_idops_func,
274 "void(@, int32_t, int32_t, int32_t, int32_t, ...)" },
275 { "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE,
276 DT_ATTR_STABCMN, DT_VERS_1_0,
277 &dt_idops_func, "void(@, int32_t, int32_t, ...)" },
278 { "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0,
279 &dt_idops_func, "void(@)" },
280 { "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0,
281 &dt_idops_func, "void(@)" },
282 { "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN,
283 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" },
284 { "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE,
285 DT_ATTR_STABCMN, DT_VERS_1_0,
286 &dt_idops_func, "size_t(mblk_t *)" },
287 { "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE,
288 DT_ATTR_STABCMN, DT_VERS_1_0,
289 &dt_idops_func, "size_t(mblk_t *)" },
290 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED,
291 DT_ATTR_EVOLCMN, DT_VERS_1_0,
292 &dt_idops_func, "int(genunix`kmutex_t *)" },
293 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER,
294 DT_ATTR_EVOLCMN, DT_VERS_1_0,
295 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" },
296 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE,
297 DT_ATTR_EVOLCMN, DT_VERS_1_0,
298 &dt_idops_func, "int(genunix`kmutex_t *)" },
299 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN,
300 DT_ATTR_EVOLCMN, DT_VERS_1_0,
301 &dt_idops_func, "int(genunix`kmutex_t *)" },
302 { "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
303 &dt_idops_func, "uint32_t(uint32_t)" },
304 { "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
305 &dt_idops_func, "uint64_t(uint64_t)" },
306 { "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3,
307 &dt_idops_func, "uint16_t(uint16_t)" },
308 { "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN,
309 DT_VERS_1_0, &dt_idops_func, "void(...)" },
310 { "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0,
311 &dt_idops_func, "void()" },
312 { "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0,
313 &dt_idops_type, "pid_t" },
314 { "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0,
315 &dt_idops_type, "pid_t" },
316 { "print", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINT, DT_ATTR_STABCMN, DT_VERS_1_9,
317 &dt_idops_func, "void(@)" },
318 { "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0,
319 &dt_idops_func, "void(@, ...)" },
320 { "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0,
321 &dt_idops_func, "void(@, ...)" },
322 { "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC,
323 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
324 { "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD,
325 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
326 { "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME,
327 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
328 { "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV,
329 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
330 { "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF,
331 DT_ATTR_STABCMN, DT_VERS_1_0,
332 &dt_idops_func, "int(pid_t)" },
333 { "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE,
334 DT_ATTR_STABCMN, DT_VERS_1_0,
335 &dt_idops_func, "void(@, ...)" },
336 { "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0,
337 &dt_idops_func, "void(int)" },
338 { "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0,
339 &dt_idops_func, "int()" },
340 { "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1,
341 &dt_idops_func, "int(const char *, const char *, [int])" },
342 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER,
343 DT_ATTR_EVOLCMN, DT_VERS_1_0,
344 &dt_idops_func, "int(genunix`krwlock_t *)" },
345 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD,
346 DT_ATTR_EVOLCMN, DT_VERS_1_0,
347 &dt_idops_func, "int(genunix`krwlock_t *)" },
348 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD,
349 DT_ATTR_EVOLCMN, DT_VERS_1_0,
350 &dt_idops_func, "int(genunix`krwlock_t *)" },
351 { "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0,
352 &dt_idops_type, "void" },
353 { "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN,
354 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" },
355 { "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE,
356 DT_ATTR_STABCMN, DT_VERS_1_0,
357 &dt_idops_func, "void(int)" },
358 { "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION,
359 DT_ATTR_STABCMN, DT_VERS_1_0,
360 &dt_idops_func, "int()" },
361 { "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0,
362 &dt_idops_func, "stack(...)" },
363 { "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH,
364 DT_ATTR_STABCMN, DT_VERS_1_0,
365 &dt_idops_type, "uint32_t" },
366 { "stddev", DT_IDENT_AGGFUNC, 0, DTRACEAGG_STDDEV, DT_ATTR_STABCMN,
367 DT_VERS_1_6, &dt_idops_func, "void(@)" },
368 { "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0,
369 &dt_idops_func, "void()" },
370 { "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1,
371 &dt_idops_func, "string(const char *, char)" },
372 { "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0,
373 &dt_idops_func, "size_t(const char *)" },
374 { "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0,
375 &dt_idops_func, "string(const char *, const char *)" },
376 { "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1,
377 &dt_idops_func, "string(const char *, char)" },
378 { "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1,
379 &dt_idops_func, "string(const char *, const char *)" },
380 { "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1,
381 &dt_idops_func, "string(const char *, const char *)" },
382 { "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1,
383 &dt_idops_func, "string(const char *, int, [int])" },
384 { "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0,
385 &dt_idops_func, "void(@)" },
386 { "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN,
387 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" },
388 { "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0,
389 &dt_idops_func, "void(@, ...)" },
390 { "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0,
391 &dt_idops_type, "void" },
392 { "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0,
393 &dt_idops_type, "id_t" },
394 { "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP,
395 DT_ATTR_STABCMN, DT_VERS_1_0,
396 &dt_idops_type, "uint64_t" },
397 { "tolower", DT_IDENT_FUNC, 0, DIF_SUBR_TOLOWER, DT_ATTR_STABCMN, DT_VERS_1_8,
398 &dt_idops_func, "string(const char *)" },
399 { "toupper", DT_IDENT_FUNC, 0, DIF_SUBR_TOUPPER, DT_ATTR_STABCMN, DT_VERS_1_8,
400 &dt_idops_func, "string(const char *)" },
401 { "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0,
402 &dt_idops_func, "void(@)" },
403 { "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM,
404 DT_ATTR_STABCMN, DT_VERS_1_0,
405 &dt_idops_func, "void(@, size_t, ...)" },
406 { "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN,
407 DT_VERS_1_0, &dt_idops_func, "void(...)" },
408 { "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN,
409 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
410 { "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN,
411 DT_VERS_1_2, &dt_idops_type, "uint64_t" },
412 { "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN,
413 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
414 { "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0,
415 &dt_idops_type, "uid_t" },
416 { "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN,
417 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
418 { "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0,
419 &dt_idops_regs, NULL },
420 { "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0,
421 &dt_idops_func, "stack(...)" },
422 { "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH,
423 DT_ATTR_STABCMN, DT_VERS_1_2,
424 &dt_idops_type, "uint32_t" },
425 { "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN,
426 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
427 { "vmregs", DT_IDENT_ARRAY, 0, DIF_VAR_VMREGS, DT_ATTR_STABCMN, DT_VERS_1_7,
428 &dt_idops_regs, NULL },
429 { "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP,
430 DT_ATTR_STABCMN, DT_VERS_1_0,
431 &dt_idops_type, "uint64_t" },
432 { "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP,
433 DT_ATTR_STABCMN, DT_VERS_1_0,
434 &dt_idops_type, "int64_t" },
435 { "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME,
436 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
437 { NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL }
438 };
439
440 /*
441 * Tables of ILP32 intrinsic integer and floating-point type templates to use
442 * to populate the dynamic "C" CTF type container.
443 */
444 static const dt_intrinsic_t _dtrace_intrinsics_32[] = {
445 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER },
446 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
447 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER },
448 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
449 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
450 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
451 { "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
452 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
453 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
454 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
455 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
456 { "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
457 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
458 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
459 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER },
460 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER },
461 { "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER },
462 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER },
463 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER },
464 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT },
465 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT },
466 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT },
467 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT },
468 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT },
469 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT },
470 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT },
471 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT },
472 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT },
473 { NULL, { 0, 0, 0 }, 0 }
474 };
475
476 /*
477 * Tables of LP64 intrinsic integer and floating-point type templates to use
478 * to populate the dynamic "C" CTF type container.
479 */
480 static const dt_intrinsic_t _dtrace_intrinsics_64[] = {
481 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER },
482 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
483 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER },
484 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
485 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
486 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
487 { "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
488 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
489 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
490 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
491 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
492 { "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
493 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
494 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
495 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER },
496 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER },
497 { "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER },
498 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER },
499 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER },
500 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT },
501 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT },
502 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT },
503 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT },
504 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT },
505 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT },
506 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT },
507 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT },
508 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT },
509 { NULL, { 0, 0, 0 }, 0 }
510 };
511
512 /*
513 * Tables of ILP32 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_32[] = {
517 { "char", "int8_t" },
518 { "short", "int16_t" },
519 { "int", "int32_t" },
520 { "long long", "int64_t" },
521 { "int", "intptr_t" },
522 { "int", "ssize_t" },
523 { "unsigned char", "uint8_t" },
524 { "unsigned short", "uint16_t" },
525 { "unsigned", "uint32_t" },
526 { "unsigned long 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 { "int", "ptrdiff_t" },
533 { "unsigned", "uintptr_t" },
534 { "unsigned", "size_t" },
535 { "long", "id_t" },
536 { "long", "pid_t" },
537 { NULL, NULL }
538 };
539
540 /*
541 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container.
542 * These aliases ensure that D definitions can use typical <sys/types.h> names.
543 */
544 static const dt_typedef_t _dtrace_typedefs_64[] = {
545 { "char", "int8_t" },
546 { "short", "int16_t" },
547 { "int", "int32_t" },
548 { "long", "int64_t" },
549 { "long", "intptr_t" },
550 { "long", "ssize_t" },
551 { "unsigned char", "uint8_t" },
552 { "unsigned short", "uint16_t" },
553 { "unsigned", "uint32_t" },
554 { "unsigned long", "uint64_t" },
555 { "unsigned char", "uchar_t" },
556 { "unsigned short", "ushort_t" },
557 { "unsigned", "uint_t" },
558 { "unsigned long", "ulong_t" },
559 { "unsigned long long", "u_longlong_t" },
560 { "long", "ptrdiff_t" },
561 { "unsigned long", "uintptr_t" },
562 { "unsigned long", "size_t" },
563 { "int", "id_t" },
564 { "int", "pid_t" },
565 { NULL, NULL }
566 };
567
568 /*
569 * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[]
570 * cache when a new dtrace client open occurs. Values are set by dtrace_open().
571 */
572 static const dt_intdesc_t _dtrace_ints_32[] = {
573 { "int", NULL, CTF_ERR, 0x7fffffffULL },
574 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL },
575 { "long", NULL, CTF_ERR, 0x7fffffffULL },
576 { "unsigned long", NULL, CTF_ERR, 0xffffffffULL },
577 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL },
578 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL }
579 };
580
581 /*
582 * Tables of LP64 integer type templates used to populate the dtp->dt_ints[]
583 * cache when a new dtrace client open occurs. Values are set by dtrace_open().
584 */
585 static const dt_intdesc_t _dtrace_ints_64[] = {
586 { "int", NULL, CTF_ERR, 0x7fffffffULL },
587 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL },
588 { "long", NULL, CTF_ERR, 0x7fffffffffffffffULL },
589 { "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL },
590 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL },
591 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL }
592 };
593
594 /*
595 * Table of macro variable templates used to populate the macro identifier hash
596 * when a new dtrace client open occurs. Values are set by dtrace_update().
597 */
598 static const dt_ident_t _dtrace_macros[] = {
599 { "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
600 { "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
601 { "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
602 { "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
603 { "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
604 { "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
605 { "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
606 { "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
607 { "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
608 { "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
609 { "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
610 { NULL, 0, 0, 0, { 0, 0, 0 }, 0 }
611 };
612
613 /*
614 * Hard-wired definition string to be compiled and cached every time a new
615 * DTrace library handle is initialized. This string should only be used to
616 * contain definitions that should be present regardless of DTRACE_O_NOLIBS.
617 */
618 static const char _dtrace_hardwire[] = "\
619 inline long NULL = 0; \n\
620 #pragma D binding \"1.0\" NULL\n\
621 ";
622
623 /*
624 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV.
625 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel.
626 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are
627 * relying on the fact that when running dtrace(1M), isaexec will invoke the
628 * binary with the same bitness as the kernel, which is what we want by default
629 * when generating our DIF. The user can override the choice using oflags.
630 */
631 static const dtrace_conf_t _dtrace_conf = {
632 DIF_VERSION, /* dtc_difversion */
633 DIF_DIR_NREGS, /* dtc_difintregs */
634 DIF_DTR_NREGS, /* dtc_diftupregs */
635 CTF_MODEL_NATIVE /* dtc_ctfmodel */
636 };
637
638 const dtrace_attribute_t _dtrace_maxattr = {
639 DTRACE_STABILITY_MAX,
640 DTRACE_STABILITY_MAX,
641 DTRACE_CLASS_MAX
642 };
643
644 const dtrace_attribute_t _dtrace_defattr = {
645 DTRACE_STABILITY_STABLE,
646 DTRACE_STABILITY_STABLE,
647 DTRACE_CLASS_COMMON
648 };
649
650 const dtrace_attribute_t _dtrace_symattr = {
651 DTRACE_STABILITY_PRIVATE,
652 DTRACE_STABILITY_PRIVATE,
653 DTRACE_CLASS_UNKNOWN
654 };
655
656 const dtrace_attribute_t _dtrace_typattr = {
657 DTRACE_STABILITY_PRIVATE,
658 DTRACE_STABILITY_PRIVATE,
659 DTRACE_CLASS_UNKNOWN
660 };
661
662 const dtrace_attribute_t _dtrace_prvattr = {
663 DTRACE_STABILITY_PRIVATE,
664 DTRACE_STABILITY_PRIVATE,
665 DTRACE_CLASS_UNKNOWN
666 };
667
668 const dtrace_pattr_t _dtrace_prvdesc = {
669 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
670 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
671 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
672 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
673 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
674 };
675
676 const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */
677 const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */
678
679 const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */
680 const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */
681
682 int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */
683 int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */
684 uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */
685 uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */
686 uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */
687 uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */
688 size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */
689 int _dtrace_argmax = 32; /* default maximum number of probe arguments */
690
691 int _dtrace_debug = 0; /* debug messages enabled (off) */
692 const char *const _dtrace_version = DT_VERS_STRING; /* API version string */
693 int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */
694
695 typedef struct dt_fdlist {
696 int *df_fds; /* array of provider driver file descriptors */
697 uint_t df_ents; /* number of valid elements in df_fds[] */
698 uint_t df_size; /* size of df_fds[] */
699 } dt_fdlist_t;
700
701 #pragma init(_dtrace_init)
702 void
703 _dtrace_init(void)
704 {
705 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL;
706
707 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) {
708 if (rd_init(_dtrace_rdvers) == RD_OK)
709 break;
710 }
711 }
712
713 static dtrace_hdl_t *
714 set_open_errno(dtrace_hdl_t *dtp, int *errp, int err)
715 {
716 if (dtp != NULL)
717 dtrace_close(dtp);
718 if (errp != NULL)
719 *errp = err;
720 return (NULL);
721 }
722
723 static void
724 dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp)
725 {
726 dt_provmod_t *prov;
727 char path[PATH_MAX];
728 struct dirent *dp, *ep;
729 DIR *dirp;
730 int fd;
731
732 if ((dirp = opendir(_dtrace_provdir)) == NULL)
733 return; /* failed to open directory; just skip it */
734
735 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1);
736 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1);
737
738 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) {
739 if (dp->d_name[0] == '.')
740 continue; /* skip "." and ".." */
741
742 if (dfp->df_ents == dfp->df_size) {
743 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16;
744 int *fds = realloc(dfp->df_fds, size * sizeof (int));
745
746 if (fds == NULL)
747 break; /* skip the rest of this directory */
748
749 dfp->df_fds = fds;
750 dfp->df_size = size;
751 }
752
753 (void) snprintf(path, sizeof (path), "%s/%s",
754 _dtrace_provdir, dp->d_name);
755
756 if ((fd = open(path, O_RDONLY)) == -1)
757 continue; /* failed to open driver; just skip it */
758
759 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) ||
760 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) {
761 free(prov);
762 (void) close(fd);
763 break;
764 }
765
766 (void) strcpy(prov->dp_name, dp->d_name);
767 prov->dp_next = *provmod;
768 *provmod = prov;
769
770 dt_dprintf("opened provider %s\n", dp->d_name);
771 dfp->df_fds[dfp->df_ents++] = fd;
772 }
773
774 (void) closedir(dirp);
775 }
776
777 static void
778 dt_provmod_destroy(dt_provmod_t **provmod)
779 {
780 dt_provmod_t *next, *current;
781
782 for (current = *provmod; current != NULL; current = next) {
783 next = current->dp_next;
784 free(current->dp_name);
785 free(current);
786 }
787
788 *provmod = NULL;
789 }
790
791 static const char *
792 dt_get_sysinfo(int cmd, char *buf, size_t len)
793 {
794 ssize_t rv = sysinfo(cmd, buf, len);
795 char *p = buf;
796
797 if (rv < 0 || rv > len)
798 (void) snprintf(buf, len, "%s", "Unknown");
799
800 while ((p = strchr(p, '.')) != NULL)
801 *p++ = '_';
802
803 return (buf);
804 }
805
806 static dtrace_hdl_t *
807 dt_vopen(int version, int flags, int *errp,
808 const dtrace_vector_t *vector, void *arg)
809 {
810 dtrace_hdl_t *dtp = NULL;
811 int dtfd = -1, ftfd = -1, fterr = 0;
812 dtrace_prog_t *pgp;
813 dt_module_t *dmp;
814 dt_provmod_t *provmod = NULL;
815 int i, err;
816 struct rlimit rl;
817
818 const dt_intrinsic_t *dinp;
819 const dt_typedef_t *dtyp;
820 const dt_ident_t *idp;
821
822 dtrace_typeinfo_t dtt;
823 ctf_funcinfo_t ctc;
824 ctf_arinfo_t ctr;
825
826 dt_fdlist_t df = { NULL, 0, 0 };
827
828 char isadef[32], utsdef[32];
829 char s1[64], s2[64];
830
831 if (version <= 0)
832 return (set_open_errno(dtp, errp, EINVAL));
833
834 if (version > DTRACE_VERSION)
835 return (set_open_errno(dtp, errp, EDT_VERSION));
836
837 if (version < DTRACE_VERSION) {
838 /*
839 * Currently, increasing the library version number is used to
840 * denote a binary incompatible change. That is, a consumer
841 * of the library cannot run on a version of the library with
842 * a higher DTRACE_VERSION number than the consumer compiled
843 * against. Once the library API has been committed to,
844 * backwards binary compatibility will be required; at that
845 * time, this check should change to return EDT_OVERSION only
846 * if the specified version number is less than the version
847 * number at the time of interface commitment.
848 */
849 return (set_open_errno(dtp, errp, EDT_OVERSION));
850 }
851
852 if (flags & ~DTRACE_O_MASK)
853 return (set_open_errno(dtp, errp, EINVAL));
854
855 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32))
856 return (set_open_errno(dtp, errp, EINVAL));
857
858 if (vector == NULL && arg != NULL)
859 return (set_open_errno(dtp, errp, EINVAL));
860
861 if (elf_version(EV_CURRENT) == EV_NONE)
862 return (set_open_errno(dtp, errp, EDT_ELFVERSION));
863
864 if (vector != NULL || (flags & DTRACE_O_NODEV))
865 goto alloc; /* do not attempt to open dtrace device */
866
867 /*
868 * Before we get going, crank our limit on file descriptors up to the
869 * hard limit. This is to allow for the fact that libproc keeps file
870 * descriptors to objects open for the lifetime of the proc handle;
871 * without raising our hard limit, we would have an acceptably small
872 * bound on the number of processes that we could concurrently
873 * instrument with the pid provider.
874 */
875 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) {
876 rl.rlim_cur = rl.rlim_max;
877 (void) setrlimit(RLIMIT_NOFILE, &rl);
878 }
879
880 /*
881 * Get the device path of each of the providers. We hold them open
882 * in the df.df_fds list until we open the DTrace driver itself,
883 * allowing us to see all of the probes provided on this system. Once
884 * we have the DTrace driver open, we can safely close all the providers
885 * now that they have registered with the framework.
886 */
887 dt_provmod_open(&provmod, &df);
888
889 dtfd = open("/dev/dtrace/dtrace", O_RDWR);
890 err = errno; /* save errno from opening dtfd */
891
892 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR);
893 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */
894
895 while (df.df_ents-- != 0)
896 (void) close(df.df_fds[df.df_ents]);
897
898 free(df.df_fds);
899
900 /*
901 * If we failed to open the dtrace device, fail dtrace_open().
902 * We convert some kernel errnos to custom libdtrace errnos to
903 * improve the resulting message from the usual strerror().
904 */
905 if (dtfd == -1) {
906 dt_provmod_destroy(&provmod);
907 switch (err) {
908 case ENOENT:
909 err = EDT_NOENT;
910 break;
911 case EBUSY:
912 err = EDT_BUSY;
913 break;
914 case EACCES:
915 err = EDT_ACCESS;
916 break;
917 }
918 return (set_open_errno(dtp, errp, err));
919 }
920
921 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC);
922 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC);
923
924 alloc:
925 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL)
926 return (set_open_errno(dtp, errp, EDT_NOMEM));
927
928 bzero(dtp, sizeof (dtrace_hdl_t));
929 dtp->dt_oflags = flags;
930 dtp->dt_prcmode = DT_PROC_STOP_PREINIT;
931 dtp->dt_linkmode = DT_LINK_KERNEL;
932 dtp->dt_linktype = DT_LTYP_ELF;
933 dtp->dt_xlatemode = DT_XL_STATIC;
934 dtp->dt_stdcmode = DT_STDC_XA;
935 dtp->dt_version = version;
936 dtp->dt_fd = dtfd;
937 dtp->dt_ftfd = ftfd;
938 dtp->dt_fterr = fterr;
939 dtp->dt_cdefs_fd = -1;
940 dtp->dt_ddefs_fd = -1;
941 dtp->dt_stdout_fd = -1;
942 dtp->dt_modbuckets = _dtrace_strbuckets;
943 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *));
944 dtp->dt_provbuckets = _dtrace_strbuckets;
945 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *));
946 dt_proc_init(dtp);
947 dtp->dt_vmax = DT_VERS_LATEST;
948 dtp->dt_cpp_path = strdup(_dtrace_defcpp);
949 dtp->dt_cpp_argv = malloc(sizeof (char *));
950 dtp->dt_cpp_argc = 1;
951 dtp->dt_cpp_args = 1;
952 dtp->dt_ld_path = strdup(_dtrace_defld);
953 dtp->dt_provmod = provmod;
954 dtp->dt_vector = vector;
955 dtp->dt_varg = arg;
956 dt_dof_init(dtp);
957 (void) uname(&dtp->dt_uts);
958
959 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL ||
960 dtp->dt_procs == NULL || dtp->dt_proc_env == NULL ||
961 dtp->dt_ld_path == NULL || dtp->dt_cpp_path == NULL ||
962 dtp->dt_cpp_argv == NULL)
963 return (set_open_errno(dtp, errp, EDT_NOMEM));
964
965 for (i = 0; i < DTRACEOPT_MAX; i++)
966 dtp->dt_options[i] = DTRACEOPT_UNSET;
967
968 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path);
969
970 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u",
971 (uint_t)(sizeof (void *) * NBBY));
972
973 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s",
974 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)),
975 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2)));
976
977 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL ||
978 dt_cpp_add_arg(dtp, "-D__unix") == NULL ||
979 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL ||
980 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL ||
981 dt_cpp_add_arg(dtp, isadef) == NULL ||
982 dt_cpp_add_arg(dtp, utsdef) == NULL)
983 return (set_open_errno(dtp, errp, EDT_NOMEM));
984
985 if (flags & DTRACE_O_NODEV)
986 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf));
987 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0)
988 return (set_open_errno(dtp, errp, errno));
989
990 if (flags & DTRACE_O_LP64)
991 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64;
992 else if (flags & DTRACE_O_ILP32)
993 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32;
994
995 #ifdef __sparc
996 /*
997 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h>
998 * and __sparcv9 is defined if we are doing a 64-bit compile.
999 */
1000 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL)
1001 return (set_open_errno(dtp, errp, EDT_NOMEM));
1002
1003 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 &&
1004 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL)
1005 return (set_open_errno(dtp, errp, EDT_NOMEM));
1006 #endif
1007
1008 #ifdef __x86
1009 /*
1010 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit
1011 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC,
1012 * they are defined exclusive of one another (see PSARC 2004/619).
1013 */
1014 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) {
1015 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL)
1016 return (set_open_errno(dtp, errp, EDT_NOMEM));
1017 } else {
1018 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL)
1019 return (set_open_errno(dtp, errp, EDT_NOMEM));
1020 }
1021 #endif
1022
1023 if (dtp->dt_conf.dtc_difversion < DIF_VERSION)
1024 return (set_open_errno(dtp, errp, EDT_DIFVERS));
1025
1026 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32)
1027 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32));
1028 else
1029 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64));
1030
1031 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX);
1032 dtp->dt_aggs = dt_idhash_create("aggregation", NULL,
1033 DTRACE_AGGVARIDNONE + 1, UINT_MAX);
1034
1035 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals,
1036 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX);
1037
1038 dtp->dt_tls = dt_idhash_create("thread local", NULL,
1039 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX);
1040
1041 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL ||
1042 dtp->dt_globals == NULL || dtp->dt_tls == NULL)
1043 return (set_open_errno(dtp, errp, EDT_NOMEM));
1044
1045 /*
1046 * Populate the dt_macros identifier hash table by hand: we can't use
1047 * the dt_idhash_populate() mechanism because we're not yet compiling
1048 * and dtrace_update() needs to immediately reference these idents.
1049 */
1050 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) {
1051 if (dt_idhash_insert(dtp->dt_macros, idp->di_name,
1052 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr,
1053 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw,
1054 idp->di_iarg, 0) == NULL)
1055 return (set_open_errno(dtp, errp, EDT_NOMEM));
1056 }
1057
1058 /*
1059 * Update the module list using /system/object and load the values for
1060 * the macro variable definitions according to the current process.
1061 */
1062 dtrace_update(dtp);
1063
1064 /*
1065 * Select the intrinsics and typedefs we want based on the data model.
1066 * The intrinsics are under "C". The typedefs are added under "D".
1067 */
1068 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) {
1069 dinp = _dtrace_intrinsics_32;
1070 dtyp = _dtrace_typedefs_32;
1071 } else {
1072 dinp = _dtrace_intrinsics_64;
1073 dtyp = _dtrace_typedefs_64;
1074 }
1075
1076 /*
1077 * Create a dynamic CTF container under the "C" scope for intrinsic
1078 * types and types defined in ANSI-C header files that are included.
1079 */
1080 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL)
1081 return (set_open_errno(dtp, errp, EDT_NOMEM));
1082
1083 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL)
1084 return (set_open_errno(dtp, errp, EDT_CTF));
1085
1086 dt_dprintf("created CTF container for %s (%p)\n",
1087 dmp->dm_name, (void *)dmp->dm_ctfp);
1088
1089 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel);
1090 ctf_setspecific(dmp->dm_ctfp, dmp);
1091
1092 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */
1093 dmp->dm_modid = -1; /* no module ID */
1094
1095 /*
1096 * Fill the dynamic "C" CTF container with all of the intrinsic
1097 * integer and floating-point types appropriate for this data model.
1098 */
1099 for (; dinp->din_name != NULL; dinp++) {
1100 if (dinp->din_kind == CTF_K_INTEGER) {
1101 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT,
1102 dinp->din_name, &dinp->din_data);
1103 } else {
1104 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT,
1105 dinp->din_name, &dinp->din_data);
1106 }
1107
1108 if (err == CTF_ERR) {
1109 dt_dprintf("failed to add %s to C container: %s\n",
1110 dinp->din_name, ctf_errmsg(
1111 ctf_errno(dmp->dm_ctfp)));
1112 return (set_open_errno(dtp, errp, EDT_CTF));
1113 }
1114 }
1115
1116 if (ctf_update(dmp->dm_ctfp) != 0) {
1117 dt_dprintf("failed to update C container: %s\n",
1118 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1119 return (set_open_errno(dtp, errp, EDT_CTF));
1120 }
1121
1122 /*
1123 * Add intrinsic pointer types that are needed to initialize printf
1124 * format dictionary types (see table in dt_printf.c).
1125 */
1126 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT,
1127 ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1128
1129 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT,
1130 ctf_lookup_by_name(dmp->dm_ctfp, "char"));
1131
1132 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT,
1133 ctf_lookup_by_name(dmp->dm_ctfp, "int"));
1134
1135 if (ctf_update(dmp->dm_ctfp) != 0) {
1136 dt_dprintf("failed to update C container: %s\n",
1137 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1138 return (set_open_errno(dtp, errp, EDT_CTF));
1139 }
1140
1141 /*
1142 * Create a dynamic CTF container under the "D" scope for types that
1143 * are defined by the D program itself or on-the-fly by the D compiler.
1144 * The "D" CTF container is a child of the "C" CTF container.
1145 */
1146 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL)
1147 return (set_open_errno(dtp, errp, EDT_NOMEM));
1148
1149 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL)
1150 return (set_open_errno(dtp, errp, EDT_CTF));
1151
1152 dt_dprintf("created CTF container for %s (%p)\n",
1153 dmp->dm_name, (void *)dmp->dm_ctfp);
1154
1155 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel);
1156 ctf_setspecific(dmp->dm_ctfp, dmp);
1157
1158 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */
1159 dmp->dm_modid = -1; /* no module ID */
1160
1161 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) {
1162 dt_dprintf("failed to import D parent container: %s\n",
1163 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1164 return (set_open_errno(dtp, errp, EDT_CTF));
1165 }
1166
1167 /*
1168 * Fill the dynamic "D" CTF container with all of the built-in typedefs
1169 * that we need to use for our D variable and function definitions.
1170 * This ensures that basic inttypes.h names are always available to us.
1171 */
1172 for (; dtyp->dty_src != NULL; dtyp++) {
1173 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1174 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp,
1175 dtyp->dty_src)) == CTF_ERR) {
1176 dt_dprintf("failed to add typedef %s %s to D "
1177 "container: %s", dtyp->dty_src, dtyp->dty_dst,
1178 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1179 return (set_open_errno(dtp, errp, EDT_CTF));
1180 }
1181 }
1182
1183 /*
1184 * Insert a CTF ID corresponding to a pointer to a type of kind
1185 * CTF_K_FUNCTION we can use in the compiler for function pointers.
1186 * CTF treats all function pointers as "int (*)()" so we only need one.
1187 */
1188 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int");
1189 ctc.ctc_argc = 0;
1190 ctc.ctc_flags = 0;
1191
1192 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp,
1193 CTF_ADD_ROOT, &ctc, NULL);
1194
1195 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp,
1196 CTF_ADD_ROOT, dtp->dt_type_func);
1197
1198 /*
1199 * We also insert CTF definitions for the special D intrinsic types
1200 * string and <DYN> into the D container. The string type is added
1201 * as a typedef of char[n]. The <DYN> type is an alias for void.
1202 * We compare types to these special CTF ids throughout the compiler.
1203 */
1204 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char");
1205 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long");
1206 ctr.ctr_nelems = _dtrace_strsize;
1207
1208 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1209 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr));
1210
1211 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1212 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1213
1214 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1215 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1216
1217 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1218 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1219
1220 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1221 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1222
1223 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR ||
1224 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR ||
1225 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR ||
1226 dtp->dt_type_usymaddr == CTF_ERR) {
1227 dt_dprintf("failed to add intrinsic to D container: %s\n",
1228 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1229 return (set_open_errno(dtp, errp, EDT_CTF));
1230 }
1231
1232 if (ctf_update(dmp->dm_ctfp) != 0) {
1233 dt_dprintf("failed update D container: %s\n",
1234 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1235 return (set_open_errno(dtp, errp, EDT_CTF));
1236 }
1237
1238 /*
1239 * Initialize the integer description table used to convert integer
1240 * constants to the appropriate types. Refer to the comments above
1241 * dt_node_int() for a complete description of how this table is used.
1242 */
1243 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) {
1244 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY,
1245 dtp->dt_ints[i].did_name, &dtt) != 0) {
1246 dt_dprintf("failed to lookup integer type %s: %s\n",
1247 dtp->dt_ints[i].did_name,
1248 dtrace_errmsg(dtp, dtrace_errno(dtp)));
1249 return (set_open_errno(dtp, errp, dtp->dt_errno));
1250 }
1251 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp;
1252 dtp->dt_ints[i].did_type = dtt.dtt_type;
1253 }
1254
1255 /*
1256 * Now that we've created the "C" and "D" containers, move them to the
1257 * start of the module list so that these types and symbols are found
1258 * first (for stability) when iterating through the module list.
1259 */
1260 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs);
1261 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs);
1262
1263 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs);
1264 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs);
1265
1266 if (dt_pfdict_create(dtp) == -1)
1267 return (set_open_errno(dtp, errp, dtp->dt_errno));
1268
1269 /*
1270 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default
1271 * because without /dev/dtrace open, we will not be able to load the
1272 * names and attributes of any providers or probes from the kernel.
1273 */
1274 if (flags & DTRACE_O_NODEV)
1275 dtp->dt_cflags |= DTRACE_C_ZDEFS;
1276
1277 /*
1278 * Load hard-wired inlines into the definition cache by calling the
1279 * compiler on the raw definition string defined above.
1280 */
1281 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire,
1282 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) {
1283 dt_dprintf("failed to load hard-wired definitions: %s\n",
1284 dtrace_errmsg(dtp, dtrace_errno(dtp)));
1285 return (set_open_errno(dtp, errp, EDT_HARDWIRE));
1286 }
1287
1288 dt_program_destroy(dtp, pgp);
1289
1290 /*
1291 * Set up the default DTrace library path. Once set, the next call to
1292 * dt_compile() will compile all the libraries. We intentionally defer
1293 * library processing to improve overhead for clients that don't ever
1294 * compile, and to provide better error reporting (because the full
1295 * reporting of compiler errors requires dtrace_open() to succeed).
1296 */
1297 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0)
1298 return (set_open_errno(dtp, errp, dtp->dt_errno));
1299
1300 return (dtp);
1301 }
1302
1303 dtrace_hdl_t *
1304 dtrace_open(int version, int flags, int *errp)
1305 {
1306 return (dt_vopen(version, flags, errp, NULL, NULL));
1307 }
1308
1309 dtrace_hdl_t *
1310 dtrace_vopen(int version, int flags, int *errp,
1311 const dtrace_vector_t *vector, void *arg)
1312 {
1313 return (dt_vopen(version, flags, errp, vector, arg));
1314 }
1315
1316 void
1317 dtrace_close(dtrace_hdl_t *dtp)
1318 {
1319 dt_ident_t *idp, *ndp;
1320 dt_module_t *dmp;
1321 dt_provider_t *pvp;
1322 dtrace_prog_t *pgp;
1323 dt_xlator_t *dxp;
1324 dt_dirpath_t *dirp;
1325 int i;
1326
1327 if (dtp->dt_procs != NULL)
1328 dt_proc_fini(dtp);
1329
1330 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL)
1331 dt_program_destroy(dtp, pgp);
1332
1333 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL)
1334 dt_xlator_destroy(dtp, dxp);
1335
1336 dt_free(dtp, dtp->dt_xlatormap);
1337
1338 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) {
1339 ndp = idp->di_next;
1340 dt_ident_destroy(idp);
1341 }
1342
1343 if (dtp->dt_macros != NULL)
1344 dt_idhash_destroy(dtp->dt_macros);
1345 if (dtp->dt_aggs != NULL)
1346 dt_idhash_destroy(dtp->dt_aggs);
1347 if (dtp->dt_globals != NULL)
1348 dt_idhash_destroy(dtp->dt_globals);
1349 if (dtp->dt_tls != NULL)
1350 dt_idhash_destroy(dtp->dt_tls);
1351
1352 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL)
1353 dt_module_destroy(dtp, dmp);
1354
1355 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL)
1356 dt_provider_destroy(dtp, pvp);
1357
1358 if (dtp->dt_fd != -1)
1359 (void) close(dtp->dt_fd);
1360 if (dtp->dt_ftfd != -1)
1361 (void) close(dtp->dt_ftfd);
1362 if (dtp->dt_cdefs_fd != -1)
1363 (void) close(dtp->dt_cdefs_fd);
1364 if (dtp->dt_ddefs_fd != -1)
1365 (void) close(dtp->dt_ddefs_fd);
1366 if (dtp->dt_stdout_fd != -1)
1367 (void) close(dtp->dt_stdout_fd);
1368
1369 dt_epid_destroy(dtp);
1370 dt_aggid_destroy(dtp);
1371 dt_format_destroy(dtp);
1372 dt_strdata_destroy(dtp);
1373 dt_buffered_destroy(dtp);
1374 dt_aggregate_destroy(dtp);
1375 dt_pfdict_destroy(dtp);
1376 dt_provmod_destroy(&dtp->dt_provmod);
1377 dt_dof_fini(dtp);
1378
1379 for (i = 1; i < dtp->dt_cpp_argc; i++)
1380 free(dtp->dt_cpp_argv[i]);
1381
1382 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) {
1383 dt_list_delete(&dtp->dt_lib_path, dirp);
1384 free(dirp->dir_path);
1385 free(dirp);
1386 }
1387
1388 free(dtp->dt_cpp_argv);
1389 free(dtp->dt_cpp_path);
1390 free(dtp->dt_ld_path);
1391
1392 free(dtp->dt_mods);
1393 free(dtp->dt_provs);
1394 free(dtp);
1395 }
1396
1397 int
1398 dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods)
1399 {
1400 dt_provmod_t *prov;
1401 int i = 0;
1402
1403 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) {
1404 if (i < nmods)
1405 mods[i] = prov->dp_name;
1406 }
1407
1408 return (i);
1409 }
1410
1411 int
1412 dtrace_ctlfd(dtrace_hdl_t *dtp)
1413 {
1414 return (dtp->dt_fd);
1415 }