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) 2013, 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_1_11 DT_VERSION_NUMBER(1, 11, 0)
116 #define DT_VERS_1_12 DT_VERSION_NUMBER(1, 12, 0)
117 #define DT_VERS_1_12_1 DT_VERSION_NUMBER(1, 12, 1)
118 #define DT_VERS_LATEST DT_VERS_1_12_1
119 #define DT_VERS_STRING "Sun D 1.12.1"
120
121 const dt_version_t _dtrace_versions[] = {
122 DT_VERS_1_0, /* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */
123 DT_VERS_1_1, /* D API 1.1.0 Solaris Express 6/05 */
124 DT_VERS_1_2, /* D API 1.2.0 Solaris 10 Update 1 */
125 DT_VERS_1_2_1, /* D API 1.2.1 Solaris Express 4/06 */
126 DT_VERS_1_2_2, /* D API 1.2.2 Solaris Express 6/06 */
127 DT_VERS_1_3, /* D API 1.3 Solaris Express 10/06 */
128 DT_VERS_1_4, /* D API 1.4 Solaris Express 2/07 */
129 DT_VERS_1_4_1, /* D API 1.4.1 Solaris Express 4/07 */
130 DT_VERS_1_5, /* D API 1.5 Solaris Express 7/07 */
131 DT_VERS_1_6, /* D API 1.6 */
132 DT_VERS_1_6_1, /* D API 1.6.1 */
133 DT_VERS_1_6_2, /* D API 1.6.2 */
134 DT_VERS_1_6_3, /* D API 1.6.3 */
135 DT_VERS_1_7, /* D API 1.7 */
136 DT_VERS_1_7_1, /* D API 1.7.1 */
137 DT_VERS_1_8, /* D API 1.8 */
138 DT_VERS_1_8_1, /* D API 1.8.1 */
139 DT_VERS_1_9, /* D API 1.9 */
140 DT_VERS_1_9_1, /* D API 1.9.1 */
141 DT_VERS_1_10, /* D API 1.10 */
142 DT_VERS_1_11, /* D API 1.11 */
143 DT_VERS_1_12, /* D API 1.12 */
144 DT_VERS_1_12_1, /* D API 1.12.1 */
145 0
146 };
147
148 /*
149 * Table of global identifiers. This is used to populate the global identifier
150 * hash when a new dtrace client open occurs. For more info see dt_ident.h.
151 * The global identifiers that represent functions use the dt_idops_func ops
152 * and specify the private data pointer as a prototype string which is parsed
153 * when the identifier is first encountered. These prototypes look like ANSI
154 * C function prototypes except that the special symbol "@" can be used as a
155 * wildcard to represent a single parameter of any type (i.e. any dt_node_t).
156 * The standard "..." notation can also be used to represent varargs. An empty
157 * parameter list is taken to mean void (that is, no arguments are permitted).
158 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional
159 * argument.
160 */
161 static const dt_ident_t _dtrace_globals[] = {
162 { "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0,
163 &dt_idops_func, "void *(size_t)" },
164 { "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0,
165 &dt_idops_type, "int64_t" },
166 { "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0,
167 &dt_idops_type, "int64_t" },
168 { "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0,
169 &dt_idops_type, "int64_t" },
170 { "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0,
171 &dt_idops_type, "int64_t" },
172 { "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0,
173 &dt_idops_type, "int64_t" },
174 { "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0,
175 &dt_idops_type, "int64_t" },
176 { "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0,
177 &dt_idops_type, "int64_t" },
178 { "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0,
179 &dt_idops_type, "int64_t" },
180 { "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0,
181 &dt_idops_type, "int64_t" },
182 { "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0,
183 &dt_idops_type, "int64_t" },
184 { "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0,
185 &dt_idops_args, NULL },
186 { "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0,
187 &dt_idops_func, "void(@)" },
188 { "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0,
189 &dt_idops_func, "string(const char *)" },
190 { "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0,
191 &dt_idops_func, "void(void *, void *, size_t)" },
192 { "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT,
193 DT_ATTR_STABCMN, DT_VERS_1_0,
194 &dt_idops_func, "void()" },
195 { "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0,
196 &dt_idops_type, "uintptr_t" },
197 { "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0,
198 &dt_idops_func, "void(int)" },
199 { "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN,
200 DT_VERS_1_0, &dt_idops_func, "string(const char *)" },
201 { "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0,
202 &dt_idops_func, "void(...)" },
203 { "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0,
204 &dt_idops_func, "void(int)" },
205 { "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0,
206 &dt_idops_func, "void *(uintptr_t, size_t)" },
207 { "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR,
208 DT_ATTR_STABCMN, DT_VERS_1_0,
209 &dt_idops_func, "string(uintptr_t, [size_t])" },
210 { "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN,
211 DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" },
212 { "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0,
213 &dt_idops_func, "void(void *, uintptr_t, size_t)" },
214 { "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR,
215 DT_ATTR_STABCMN, DT_VERS_1_0,
216 &dt_idops_func, "void(char *, uintptr_t, size_t)" },
217 { "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0,
218 &dt_idops_func, "void()" },
219 { "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD,
220 { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE,
221 DTRACE_CLASS_COMMON }, DT_VERS_1_0,
222 &dt_idops_type, "genunix`kthread_t *" },
223 { "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME,
224 DT_ATTR_EVOLCMN, DT_VERS_1_0,
225 &dt_idops_func, "string(void *, int64_t)" },
226 { "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN,
227 DT_VERS_1_0, &dt_idops_func, "void(...)" },
228 { "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0,
229 &dt_idops_func, "string(const char *)" },
230 { "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0,
231 &dt_idops_func, "void(int)" },
232 { "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0,
233 &dt_idops_type, "uint_t" },
234 { "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0,
235 &dt_idops_type, "int" },
236 { "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME,
237 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
238 { "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0,
239 &dt_idops_func, "void(int)" },
240 { "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN,
241 DT_VERS_1_1, &dt_idops_func, "void(@, ...)" },
242 { "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN,
243 DT_VERS_1_0, &dt_idops_func, "void()" },
244 { "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN,
245 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" },
246 { "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR,
247 DT_ATTR_EVOLCMN, DT_VERS_1_0,
248 &dt_idops_func, "genunix`major_t(genunix`dev_t)" },
249 { "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR,
250 DT_ATTR_EVOLCMN, DT_VERS_1_0,
251 &dt_idops_func, "genunix`minor_t(genunix`dev_t)" },
252 { "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
253 &dt_idops_func, "uint32_t(uint32_t)" },
254 { "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
255 &dt_idops_func, "uint64_t(uint64_t)" },
256 { "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3,
257 &dt_idops_func, "uint16_t(uint16_t)" },
258 { "getf", DT_IDENT_FUNC, 0, DIF_SUBR_GETF, DT_ATTR_STABCMN, DT_VERS_1_10,
259 &dt_idops_func, "file_t *(int)" },
260 { "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0,
261 &dt_idops_type, "gid_t" },
262 { "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0,
263 &dt_idops_type, "uint_t" },
264 { "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1,
265 &dt_idops_func, "int(const char *, const char *, [int])" },
266 { "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN,
267 DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" },
268 { "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN,
269 DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" },
270 { "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN,
271 DT_VERS_1_5, &dt_idops_func, "string(int, void *)" },
272 { "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0,
273 &dt_idops_type, "uint_t" },
274 { "json", DT_IDENT_FUNC, 0, DIF_SUBR_JSON, DT_ATTR_STABCMN, DT_VERS_1_11,
275 &dt_idops_func, "string(const char *, const char *)" },
276 { "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0,
277 &dt_idops_func, "stack(...)" },
278 { "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0,
279 &dt_idops_func, "string(int64_t, [int])" },
280 { "llquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LLQUANTIZE, DT_ATTR_STABCMN,
281 DT_VERS_1_7, &dt_idops_func,
282 "void(@, int32_t, int32_t, int32_t, int32_t, ...)" },
283 { "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE,
284 DT_ATTR_STABCMN, DT_VERS_1_0,
285 &dt_idops_func, "void(@, int32_t, int32_t, ...)" },
286 { "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0,
287 &dt_idops_func, "void(@)" },
288 { "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0,
289 &dt_idops_func, "void(@)" },
290 { "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN,
291 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" },
292 { "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE,
293 DT_ATTR_STABCMN, DT_VERS_1_0,
294 &dt_idops_func, "size_t(mblk_t *)" },
295 { "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE,
296 DT_ATTR_STABCMN, DT_VERS_1_0,
297 &dt_idops_func, "size_t(mblk_t *)" },
298 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED,
299 DT_ATTR_EVOLCMN, DT_VERS_1_0,
300 &dt_idops_func, "int(genunix`kmutex_t *)" },
301 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER,
302 DT_ATTR_EVOLCMN, DT_VERS_1_0,
303 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" },
304 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE,
305 DT_ATTR_EVOLCMN, DT_VERS_1_0,
306 &dt_idops_func, "int(genunix`kmutex_t *)" },
307 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN,
308 DT_ATTR_EVOLCMN, DT_VERS_1_0,
309 &dt_idops_func, "int(genunix`kmutex_t *)" },
310 { "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
311 &dt_idops_func, "uint32_t(uint32_t)" },
312 { "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
313 &dt_idops_func, "uint64_t(uint64_t)" },
314 { "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3,
315 &dt_idops_func, "uint16_t(uint16_t)" },
316 { "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN,
317 DT_VERS_1_0, &dt_idops_func, "void(...)" },
318 { "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0,
319 &dt_idops_func, "void()" },
320 { "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0,
321 &dt_idops_type, "pid_t" },
322 { "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0,
323 &dt_idops_type, "pid_t" },
324 { "print", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINT, DT_ATTR_STABCMN, DT_VERS_1_9,
325 &dt_idops_func, "void(@)" },
326 { "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0,
327 &dt_idops_func, "void(@, ...)" },
328 { "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0,
329 &dt_idops_func, "void(@, ...)" },
330 { "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC,
331 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
332 { "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD,
333 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
334 { "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME,
335 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
336 { "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV,
337 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
338 { "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF,
339 DT_ATTR_STABCMN, DT_VERS_1_0,
340 &dt_idops_func, "int(pid_t)" },
341 { "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE,
342 DT_ATTR_STABCMN, DT_VERS_1_0,
343 &dt_idops_func, "void(@, ...)" },
344 { "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0,
345 &dt_idops_func, "void(int)" },
346 { "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0,
347 &dt_idops_func, "int()" },
348 { "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1,
349 &dt_idops_func, "int(const char *, const char *, [int])" },
350 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER,
351 DT_ATTR_EVOLCMN, DT_VERS_1_0,
352 &dt_idops_func, "int(genunix`krwlock_t *)" },
353 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD,
354 DT_ATTR_EVOLCMN, DT_VERS_1_0,
355 &dt_idops_func, "int(genunix`krwlock_t *)" },
356 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD,
357 DT_ATTR_EVOLCMN, DT_VERS_1_0,
358 &dt_idops_func, "int(genunix`krwlock_t *)" },
359 { "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0,
360 &dt_idops_type, "void" },
361 { "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN,
362 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" },
363 { "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE,
364 DT_ATTR_STABCMN, DT_VERS_1_0,
365 &dt_idops_func, "void(int)" },
366 { "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION,
367 DT_ATTR_STABCMN, DT_VERS_1_0,
368 &dt_idops_func, "int()" },
369 { "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0,
370 &dt_idops_func, "stack(...)" },
371 { "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH,
372 DT_ATTR_STABCMN, DT_VERS_1_0,
373 &dt_idops_type, "uint32_t" },
374 { "stddev", DT_IDENT_AGGFUNC, 0, DTRACEAGG_STDDEV, DT_ATTR_STABCMN,
375 DT_VERS_1_6, &dt_idops_func, "void(@)" },
376 { "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0,
377 &dt_idops_func, "void()" },
378 { "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1,
379 &dt_idops_func, "string(const char *, char)" },
380 { "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0,
381 &dt_idops_func, "size_t(const char *)" },
382 { "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0,
383 &dt_idops_func, "string(const char *, const char *)" },
384 { "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1,
385 &dt_idops_func, "string(const char *, char)" },
386 { "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1,
387 &dt_idops_func, "string(const char *, const char *)" },
388 { "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1,
389 &dt_idops_func, "string(const char *, const char *)" },
390 { "strtoll", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOLL, DT_ATTR_STABCMN, DT_VERS_1_11,
391 &dt_idops_func, "int64_t(const char *, [int])" },
392 { "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1,
393 &dt_idops_func, "string(const char *, int, [int])" },
394 { "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0,
395 &dt_idops_func, "void(@)" },
396 { "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN,
397 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" },
398 { "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0,
399 &dt_idops_func, "void(@, ...)" },
400 { "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0,
401 &dt_idops_type, "void" },
402 { "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0,
403 &dt_idops_type, "id_t" },
404 { "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP,
405 DT_ATTR_STABCMN, DT_VERS_1_0,
406 &dt_idops_type, "uint64_t" },
407 { "tolower", DT_IDENT_FUNC, 0, DIF_SUBR_TOLOWER, DT_ATTR_STABCMN, DT_VERS_1_8,
408 &dt_idops_func, "string(const char *)" },
409 { "toupper", DT_IDENT_FUNC, 0, DIF_SUBR_TOUPPER, DT_ATTR_STABCMN, DT_VERS_1_8,
410 &dt_idops_func, "string(const char *)" },
411 { "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0,
412 &dt_idops_func, "void(@)" },
413 { "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM,
414 DT_ATTR_STABCMN, DT_VERS_1_0,
415 &dt_idops_func, "void(@, size_t, ...)" },
416 { "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN,
417 DT_VERS_1_0, &dt_idops_func, "void(...)" },
418 { "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN,
419 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
420 { "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN,
421 DT_VERS_1_2, &dt_idops_type, "uint64_t" },
422 { "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN,
423 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
424 { "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0,
425 &dt_idops_type, "uid_t" },
426 { "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN,
427 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
428 { "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0,
429 &dt_idops_regs, NULL },
430 { "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0,
431 &dt_idops_func, "stack(...)" },
432 { "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH,
433 DT_ATTR_STABCMN, DT_VERS_1_2,
434 &dt_idops_type, "uint32_t" },
435 { "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN,
436 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
437 { "vmregs", DT_IDENT_ARRAY, 0, DIF_VAR_VMREGS, DT_ATTR_STABCMN, DT_VERS_1_7,
438 &dt_idops_regs, NULL },
439 { "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP,
440 DT_ATTR_STABCMN, DT_VERS_1_0,
441 &dt_idops_type, "uint64_t" },
442 { "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP,
443 DT_ATTR_STABCMN, DT_VERS_1_0,
444 &dt_idops_type, "int64_t" },
445 { "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME,
446 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
447 { NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL }
448 };
449
450 /*
451 * Tables of ILP32 intrinsic integer and floating-point type templates to use
452 * to populate the dynamic "C" CTF type container.
453 */
454 static const dt_intrinsic_t _dtrace_intrinsics_32[] = {
455 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER },
456 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
457 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER },
458 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
459 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
460 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
461 { "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
462 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
463 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
464 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
465 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
466 { "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
467 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
468 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
469 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER },
470 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER },
471 { "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER },
472 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER },
473 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER },
474 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT },
475 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT },
476 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT },
477 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT },
478 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT },
479 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT },
480 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT },
481 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT },
482 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT },
483 { NULL, { 0, 0, 0 }, 0 }
484 };
485
486 /*
487 * Tables of LP64 intrinsic integer and floating-point type templates to use
488 * to populate the dynamic "C" CTF type container.
489 */
490 static const dt_intrinsic_t _dtrace_intrinsics_64[] = {
491 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER },
492 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
493 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER },
494 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
495 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
496 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
497 { "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
498 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
499 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
500 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
501 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
502 { "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
503 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
504 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
505 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER },
506 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER },
507 { "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER },
508 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER },
509 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER },
510 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT },
511 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT },
512 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT },
513 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT },
514 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT },
515 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT },
516 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT },
517 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT },
518 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT },
519 { NULL, { 0, 0, 0 }, 0 }
520 };
521
522 /*
523 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container.
524 * These aliases ensure that D definitions can use typical <sys/types.h> names.
525 */
526 static const dt_typedef_t _dtrace_typedefs_32[] = {
527 { "char", "int8_t" },
528 { "short", "int16_t" },
529 { "int", "int32_t" },
530 { "long long", "int64_t" },
531 { "int", "intptr_t" },
532 { "int", "ssize_t" },
533 { "unsigned char", "uint8_t" },
534 { "unsigned short", "uint16_t" },
535 { "unsigned", "uint32_t" },
536 { "unsigned long long", "uint64_t" },
537 { "unsigned char", "uchar_t" },
538 { "unsigned short", "ushort_t" },
539 { "unsigned", "uint_t" },
540 { "unsigned long", "ulong_t" },
541 { "unsigned long long", "u_longlong_t" },
542 { "int", "ptrdiff_t" },
543 { "unsigned", "uintptr_t" },
544 { "unsigned", "size_t" },
545 { "long", "id_t" },
546 { "long", "pid_t" },
547 { NULL, NULL }
548 };
549
550 /*
551 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container.
552 * These aliases ensure that D definitions can use typical <sys/types.h> names.
553 */
554 static const dt_typedef_t _dtrace_typedefs_64[] = {
555 { "char", "int8_t" },
556 { "short", "int16_t" },
557 { "int", "int32_t" },
558 { "long", "int64_t" },
559 { "long", "intptr_t" },
560 { "long", "ssize_t" },
561 { "unsigned char", "uint8_t" },
562 { "unsigned short", "uint16_t" },
563 { "unsigned", "uint32_t" },
564 { "unsigned long", "uint64_t" },
565 { "unsigned char", "uchar_t" },
566 { "unsigned short", "ushort_t" },
567 { "unsigned", "uint_t" },
568 { "unsigned long", "ulong_t" },
569 { "unsigned long long", "u_longlong_t" },
570 { "long", "ptrdiff_t" },
571 { "unsigned long", "uintptr_t" },
572 { "unsigned long", "size_t" },
573 { "int", "id_t" },
574 { "int", "pid_t" },
575 { NULL, NULL }
576 };
577
578 /*
579 * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[]
580 * cache when a new dtrace client open occurs. Values are set by dtrace_open().
581 */
582 static const dt_intdesc_t _dtrace_ints_32[] = {
583 { "int", NULL, CTF_ERR, 0x7fffffffULL },
584 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL },
585 { "long", NULL, CTF_ERR, 0x7fffffffULL },
586 { "unsigned long", NULL, CTF_ERR, 0xffffffffULL },
587 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL },
588 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL }
589 };
590
591 /*
592 * Tables of LP64 integer type templates used to populate the dtp->dt_ints[]
593 * cache when a new dtrace client open occurs. Values are set by dtrace_open().
594 */
595 static const dt_intdesc_t _dtrace_ints_64[] = {
596 { "int", NULL, CTF_ERR, 0x7fffffffULL },
597 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL },
598 { "long", NULL, CTF_ERR, 0x7fffffffffffffffULL },
599 { "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL },
600 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL },
601 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL }
602 };
603
604 /*
605 * Table of macro variable templates used to populate the macro identifier hash
606 * when a new dtrace client open occurs. Values are set by dtrace_update().
607 */
608 static const dt_ident_t _dtrace_macros[] = {
609 { "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
610 { "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
611 { "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
612 { "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
613 { "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
614 { "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
615 { "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
616 { "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
617 { "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
618 { "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
619 { "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
620 { NULL, 0, 0, 0, { 0, 0, 0 }, 0 }
621 };
622
623 /*
624 * Hard-wired definition string to be compiled and cached every time a new
625 * DTrace library handle is initialized. This string should only be used to
626 * contain definitions that should be present regardless of DTRACE_O_NOLIBS.
627 */
628 static const char _dtrace_hardwire[] = "\
629 inline long NULL = 0; \n\
630 #pragma D binding \"1.0\" NULL\n\
631 ";
632
633 /*
634 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV.
635 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel.
636 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are
637 * relying on the fact that when running dtrace(1M), isaexec will invoke the
638 * binary with the same bitness as the kernel, which is what we want by default
639 * when generating our DIF. The user can override the choice using oflags.
640 */
641 static const dtrace_conf_t _dtrace_conf = {
642 DIF_VERSION, /* dtc_difversion */
643 DIF_DIR_NREGS, /* dtc_difintregs */
644 DIF_DTR_NREGS, /* dtc_diftupregs */
645 CTF_MODEL_NATIVE /* dtc_ctfmodel */
646 };
647
648 const dtrace_attribute_t _dtrace_maxattr = {
649 DTRACE_STABILITY_MAX,
650 DTRACE_STABILITY_MAX,
651 DTRACE_CLASS_MAX
652 };
653
654 const dtrace_attribute_t _dtrace_defattr = {
655 DTRACE_STABILITY_STABLE,
656 DTRACE_STABILITY_STABLE,
657 DTRACE_CLASS_COMMON
658 };
659
660 const dtrace_attribute_t _dtrace_symattr = {
661 DTRACE_STABILITY_PRIVATE,
662 DTRACE_STABILITY_PRIVATE,
663 DTRACE_CLASS_UNKNOWN
664 };
665
666 const dtrace_attribute_t _dtrace_typattr = {
667 DTRACE_STABILITY_PRIVATE,
668 DTRACE_STABILITY_PRIVATE,
669 DTRACE_CLASS_UNKNOWN
670 };
671
672 const dtrace_attribute_t _dtrace_prvattr = {
673 DTRACE_STABILITY_PRIVATE,
674 DTRACE_STABILITY_PRIVATE,
675 DTRACE_CLASS_UNKNOWN
676 };
677
678 const dtrace_pattr_t _dtrace_prvdesc = {
679 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
680 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
681 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
682 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
683 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
684 };
685
686 const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */
687 const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */
688
689 const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */
690 const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */
691
692 int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */
693 int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */
694 uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */
695 uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */
696 uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */
697 uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */
698 size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */
699 int _dtrace_argmax = 32; /* default maximum number of probe arguments */
700
701 int _dtrace_debug = 0; /* debug messages enabled (off) */
702 const char *const _dtrace_version = DT_VERS_STRING; /* API version string */
703 int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */
704
705 typedef struct dt_fdlist {
706 int *df_fds; /* array of provider driver file descriptors */
707 uint_t df_ents; /* number of valid elements in df_fds[] */
708 uint_t df_size; /* size of df_fds[] */
709 } dt_fdlist_t;
710
711 #pragma init(_dtrace_init)
712 void
713 _dtrace_init(void)
714 {
715 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL;
716
717 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) {
718 if (rd_init(_dtrace_rdvers) == RD_OK)
719 break;
720 }
721 }
722
723 static dtrace_hdl_t *
724 set_open_errno(dtrace_hdl_t *dtp, int *errp, int err)
725 {
726 if (dtp != NULL)
727 dtrace_close(dtp);
728 if (errp != NULL)
729 *errp = err;
730 return (NULL);
731 }
732
733 static void
734 dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp)
735 {
736 dt_provmod_t *prov;
737 char path[PATH_MAX];
738 struct dirent *dp, *ep;
739 DIR *dirp;
740 int fd;
741
742 if ((dirp = opendir(_dtrace_provdir)) == NULL)
743 return; /* failed to open directory; just skip it */
744
745 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1);
746 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1);
747
748 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) {
749 if (dp->d_name[0] == '.')
750 continue; /* skip "." and ".." */
751
752 if (dfp->df_ents == dfp->df_size) {
753 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16;
754 int *fds = realloc(dfp->df_fds, size * sizeof (int));
755
756 if (fds == NULL)
757 break; /* skip the rest of this directory */
758
759 dfp->df_fds = fds;
760 dfp->df_size = size;
761 }
762
763 (void) snprintf(path, sizeof (path), "%s/%s",
764 _dtrace_provdir, dp->d_name);
765
766 if ((fd = open(path, O_RDONLY)) == -1)
767 continue; /* failed to open driver; just skip it */
768
769 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) ||
770 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) {
771 free(prov);
772 (void) close(fd);
773 break;
774 }
775
776 (void) strcpy(prov->dp_name, dp->d_name);
777 prov->dp_next = *provmod;
778 *provmod = prov;
779
780 dt_dprintf("opened provider %s\n", dp->d_name);
781 dfp->df_fds[dfp->df_ents++] = fd;
782 }
783
784 (void) closedir(dirp);
785 }
786
787 static void
788 dt_provmod_destroy(dt_provmod_t **provmod)
789 {
790 dt_provmod_t *next, *current;
791
792 for (current = *provmod; current != NULL; current = next) {
793 next = current->dp_next;
794 free(current->dp_name);
795 free(current);
796 }
797
798 *provmod = NULL;
799 }
800
801 static const char *
802 dt_get_sysinfo(int cmd, char *buf, size_t len)
803 {
804 ssize_t rv = sysinfo(cmd, buf, len);
805 char *p = buf;
806
807 if (rv < 0 || rv > len)
808 (void) snprintf(buf, len, "%s", "Unknown");
809
810 while ((p = strchr(p, '.')) != NULL)
811 *p++ = '_';
812
813 return (buf);
814 }
815
816 static dtrace_hdl_t *
817 dt_vopen(int version, int flags, int *errp,
818 const dtrace_vector_t *vector, void *arg)
819 {
820 dtrace_hdl_t *dtp = NULL;
821 int dtfd = -1, ftfd = -1, fterr = 0;
822 dtrace_prog_t *pgp;
823 dt_module_t *dmp;
824 dt_provmod_t *provmod = NULL;
825 int i, err;
826 struct rlimit rl;
827
828 const dt_intrinsic_t *dinp;
829 const dt_typedef_t *dtyp;
830 const dt_ident_t *idp;
831
832 dtrace_typeinfo_t dtt;
833 ctf_funcinfo_t ctc;
834 ctf_arinfo_t ctr;
835
836 dt_fdlist_t df = { NULL, 0, 0 };
837
838 char isadef[32], utsdef[32];
839 char s1[64], s2[64];
840
841 if (version <= 0)
842 return (set_open_errno(dtp, errp, EINVAL));
843
844 if (version > DTRACE_VERSION)
845 return (set_open_errno(dtp, errp, EDT_VERSION));
846
847 if (version < DTRACE_VERSION) {
848 /*
849 * Currently, increasing the library version number is used to
850 * denote a binary incompatible change. That is, a consumer
851 * of the library cannot run on a version of the library with
852 * a higher DTRACE_VERSION number than the consumer compiled
853 * against. Once the library API has been committed to,
854 * backwards binary compatibility will be required; at that
855 * time, this check should change to return EDT_OVERSION only
856 * if the specified version number is less than the version
857 * number at the time of interface commitment.
858 */
859 return (set_open_errno(dtp, errp, EDT_OVERSION));
860 }
861
862 if (flags & ~DTRACE_O_MASK)
863 return (set_open_errno(dtp, errp, EINVAL));
864
865 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32))
866 return (set_open_errno(dtp, errp, EINVAL));
867
868 if (vector == NULL && arg != NULL)
869 return (set_open_errno(dtp, errp, EINVAL));
870
871 if (elf_version(EV_CURRENT) == EV_NONE)
872 return (set_open_errno(dtp, errp, EDT_ELFVERSION));
873
874 if (vector != NULL || (flags & DTRACE_O_NODEV))
875 goto alloc; /* do not attempt to open dtrace device */
876
877 /*
878 * Before we get going, crank our limit on file descriptors up to the
879 * hard limit. This is to allow for the fact that libproc keeps file
880 * descriptors to objects open for the lifetime of the proc handle;
881 * without raising our hard limit, we would have an acceptably small
882 * bound on the number of processes that we could concurrently
883 * instrument with the pid provider.
884 */
885 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) {
886 rl.rlim_cur = rl.rlim_max;
887 (void) setrlimit(RLIMIT_NOFILE, &rl);
888 }
889
890 /*
891 * Get the device path of each of the providers. We hold them open
892 * in the df.df_fds list until we open the DTrace driver itself,
893 * allowing us to see all of the probes provided on this system. Once
894 * we have the DTrace driver open, we can safely close all the providers
895 * now that they have registered with the framework.
896 */
897 dt_provmod_open(&provmod, &df);
898
899 dtfd = open("/dev/dtrace/dtrace", O_RDWR);
900 err = errno; /* save errno from opening dtfd */
901
902 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR);
903 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */
904
905 while (df.df_ents-- != 0)
906 (void) close(df.df_fds[df.df_ents]);
907
908 free(df.df_fds);
909
910 /*
911 * If we failed to open the dtrace device, fail dtrace_open().
912 * We convert some kernel errnos to custom libdtrace errnos to
913 * improve the resulting message from the usual strerror().
914 */
915 if (dtfd == -1) {
916 dt_provmod_destroy(&provmod);
917 switch (err) {
918 case ENOENT:
919 err = EDT_NOENT;
920 break;
921 case EBUSY:
922 err = EDT_BUSY;
923 break;
924 case EACCES:
925 err = EDT_ACCESS;
926 break;
927 }
928 return (set_open_errno(dtp, errp, err));
929 }
930
931 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC);
932 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC);
933
934 alloc:
935 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL)
936 return (set_open_errno(dtp, errp, EDT_NOMEM));
937
938 bzero(dtp, sizeof (dtrace_hdl_t));
939 dtp->dt_oflags = flags;
940 dtp->dt_prcmode = DT_PROC_STOP_PREINIT;
941 dtp->dt_linkmode = DT_LINK_KERNEL;
942 dtp->dt_linktype = DT_LTYP_ELF;
943 dtp->dt_xlatemode = DT_XL_STATIC;
944 dtp->dt_stdcmode = DT_STDC_XA;
945 dtp->dt_encoding = DT_ENCODING_UNSET;
946 dtp->dt_version = version;
947 dtp->dt_fd = dtfd;
948 dtp->dt_ftfd = ftfd;
949 dtp->dt_fterr = fterr;
950 dtp->dt_cdefs_fd = -1;
951 dtp->dt_ddefs_fd = -1;
952 dtp->dt_stdout_fd = -1;
953 dtp->dt_modbuckets = _dtrace_strbuckets;
954 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *));
955 dtp->dt_provbuckets = _dtrace_strbuckets;
956 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *));
957 dt_proc_init(dtp);
958 dtp->dt_vmax = DT_VERS_LATEST;
959 dtp->dt_cpp_path = strdup(_dtrace_defcpp);
960 dtp->dt_cpp_argv = malloc(sizeof (char *));
961 dtp->dt_cpp_argc = 1;
962 dtp->dt_cpp_args = 1;
963 dtp->dt_ld_path = strdup(_dtrace_defld);
964 dtp->dt_provmod = provmod;
965 dtp->dt_vector = vector;
966 dtp->dt_varg = arg;
967 dt_dof_init(dtp);
968 (void) uname(&dtp->dt_uts);
969
970 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL ||
971 dtp->dt_procs == NULL || dtp->dt_proc_env == NULL ||
972 dtp->dt_ld_path == NULL || dtp->dt_cpp_path == NULL ||
973 dtp->dt_cpp_argv == NULL)
974 return (set_open_errno(dtp, errp, EDT_NOMEM));
975
976 for (i = 0; i < DTRACEOPT_MAX; i++)
977 dtp->dt_options[i] = DTRACEOPT_UNSET;
978
979 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path);
980
981 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u",
982 (uint_t)(sizeof (void *) * NBBY));
983
984 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s",
985 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)),
986 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2)));
987
988 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL ||
989 dt_cpp_add_arg(dtp, "-D__unix") == NULL ||
990 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL ||
991 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL ||
992 dt_cpp_add_arg(dtp, isadef) == NULL ||
993 dt_cpp_add_arg(dtp, utsdef) == NULL)
994 return (set_open_errno(dtp, errp, EDT_NOMEM));
995
996 if (flags & DTRACE_O_NODEV)
997 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf));
998 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0)
999 return (set_open_errno(dtp, errp, errno));
1000
1001 if (flags & DTRACE_O_LP64)
1002 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64;
1003 else if (flags & DTRACE_O_ILP32)
1004 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32;
1005
1006 #ifdef __sparc
1007 /*
1008 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h>
1009 * and __sparcv9 is defined if we are doing a 64-bit compile.
1010 */
1011 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL)
1012 return (set_open_errno(dtp, errp, EDT_NOMEM));
1013
1014 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 &&
1015 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL)
1016 return (set_open_errno(dtp, errp, EDT_NOMEM));
1017 #endif
1018
1019 #ifdef __x86
1020 /*
1021 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit
1022 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC,
1023 * they are defined exclusive of one another (see PSARC 2004/619).
1024 */
1025 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) {
1026 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL)
1027 return (set_open_errno(dtp, errp, EDT_NOMEM));
1028 } else {
1029 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL)
1030 return (set_open_errno(dtp, errp, EDT_NOMEM));
1031 }
1032 #endif
1033
1034 if (dtp->dt_conf.dtc_difversion < DIF_VERSION)
1035 return (set_open_errno(dtp, errp, EDT_DIFVERS));
1036
1037 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32)
1038 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32));
1039 else
1040 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64));
1041
1042 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX);
1043 dtp->dt_aggs = dt_idhash_create("aggregation", NULL,
1044 DTRACE_AGGVARIDNONE + 1, UINT_MAX);
1045
1046 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals,
1047 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX);
1048
1049 dtp->dt_tls = dt_idhash_create("thread local", NULL,
1050 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX);
1051
1052 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL ||
1053 dtp->dt_globals == NULL || dtp->dt_tls == NULL)
1054 return (set_open_errno(dtp, errp, EDT_NOMEM));
1055
1056 /*
1057 * Populate the dt_macros identifier hash table by hand: we can't use
1058 * the dt_idhash_populate() mechanism because we're not yet compiling
1059 * and dtrace_update() needs to immediately reference these idents.
1060 */
1061 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) {
1062 if (dt_idhash_insert(dtp->dt_macros, idp->di_name,
1063 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr,
1064 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw,
1065 idp->di_iarg, 0) == NULL)
1066 return (set_open_errno(dtp, errp, EDT_NOMEM));
1067 }
1068
1069 /*
1070 * Update the module list using /system/object and load the values for
1071 * the macro variable definitions according to the current process.
1072 */
1073 dtrace_update(dtp);
1074
1075 /*
1076 * Select the intrinsics and typedefs we want based on the data model.
1077 * The intrinsics are under "C". The typedefs are added under "D".
1078 */
1079 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) {
1080 dinp = _dtrace_intrinsics_32;
1081 dtyp = _dtrace_typedefs_32;
1082 } else {
1083 dinp = _dtrace_intrinsics_64;
1084 dtyp = _dtrace_typedefs_64;
1085 }
1086
1087 /*
1088 * Create a dynamic CTF container under the "C" scope for intrinsic
1089 * types and types defined in ANSI-C header files that are included.
1090 */
1091 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL)
1092 return (set_open_errno(dtp, errp, EDT_NOMEM));
1093
1094 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL)
1095 return (set_open_errno(dtp, errp, EDT_CTF));
1096
1097 dt_dprintf("created CTF container for %s (%p)\n",
1098 dmp->dm_name, (void *)dmp->dm_ctfp);
1099
1100 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel);
1101 ctf_setspecific(dmp->dm_ctfp, dmp);
1102
1103 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */
1104 dmp->dm_modid = -1; /* no module ID */
1105
1106 /*
1107 * Fill the dynamic "C" CTF container with all of the intrinsic
1108 * integer and floating-point types appropriate for this data model.
1109 */
1110 for (; dinp->din_name != NULL; dinp++) {
1111 if (dinp->din_kind == CTF_K_INTEGER) {
1112 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT,
1113 dinp->din_name, &dinp->din_data);
1114 } else {
1115 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT,
1116 dinp->din_name, &dinp->din_data);
1117 }
1118
1119 if (err == CTF_ERR) {
1120 dt_dprintf("failed to add %s to C container: %s\n",
1121 dinp->din_name, ctf_errmsg(
1122 ctf_errno(dmp->dm_ctfp)));
1123 return (set_open_errno(dtp, errp, EDT_CTF));
1124 }
1125 }
1126
1127 if (ctf_update(dmp->dm_ctfp) != 0) {
1128 dt_dprintf("failed to update C container: %s\n",
1129 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1130 return (set_open_errno(dtp, errp, EDT_CTF));
1131 }
1132
1133 /*
1134 * Add intrinsic pointer types that are needed to initialize printf
1135 * format dictionary types (see table in dt_printf.c).
1136 */
1137 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT,
1138 ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1139
1140 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT,
1141 ctf_lookup_by_name(dmp->dm_ctfp, "char"));
1142
1143 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT,
1144 ctf_lookup_by_name(dmp->dm_ctfp, "int"));
1145
1146 if (ctf_update(dmp->dm_ctfp) != 0) {
1147 dt_dprintf("failed to update C container: %s\n",
1148 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1149 return (set_open_errno(dtp, errp, EDT_CTF));
1150 }
1151
1152 /*
1153 * Create a dynamic CTF container under the "D" scope for types that
1154 * are defined by the D program itself or on-the-fly by the D compiler.
1155 * The "D" CTF container is a child of the "C" CTF container.
1156 */
1157 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL)
1158 return (set_open_errno(dtp, errp, EDT_NOMEM));
1159
1160 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL)
1161 return (set_open_errno(dtp, errp, EDT_CTF));
1162
1163 dt_dprintf("created CTF container for %s (%p)\n",
1164 dmp->dm_name, (void *)dmp->dm_ctfp);
1165
1166 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel);
1167 ctf_setspecific(dmp->dm_ctfp, dmp);
1168
1169 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */
1170 dmp->dm_modid = -1; /* no module ID */
1171
1172 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) {
1173 dt_dprintf("failed to import D parent container: %s\n",
1174 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1175 return (set_open_errno(dtp, errp, EDT_CTF));
1176 }
1177
1178 /*
1179 * Fill the dynamic "D" CTF container with all of the built-in typedefs
1180 * that we need to use for our D variable and function definitions.
1181 * This ensures that basic inttypes.h names are always available to us.
1182 */
1183 for (; dtyp->dty_src != NULL; dtyp++) {
1184 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1185 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp,
1186 dtyp->dty_src)) == CTF_ERR) {
1187 dt_dprintf("failed to add typedef %s %s to D "
1188 "container: %s", dtyp->dty_src, dtyp->dty_dst,
1189 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1190 return (set_open_errno(dtp, errp, EDT_CTF));
1191 }
1192 }
1193
1194 /*
1195 * Insert a CTF ID corresponding to a pointer to a type of kind
1196 * CTF_K_FUNCTION we can use in the compiler for function pointers.
1197 * CTF treats all function pointers as "int (*)()" so we only need one.
1198 */
1199 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int");
1200 ctc.ctc_argc = 0;
1201 ctc.ctc_flags = 0;
1202
1203 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp,
1204 CTF_ADD_ROOT, &ctc, NULL);
1205
1206 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp,
1207 CTF_ADD_ROOT, dtp->dt_type_func);
1208
1209 /*
1210 * We also insert CTF definitions for the special D intrinsic types
1211 * string and <DYN> into the D container. The string type is added
1212 * as a typedef of char[n]. The <DYN> type is an alias for void.
1213 * We compare types to these special CTF ids throughout the compiler.
1214 */
1215 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char");
1216 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long");
1217 ctr.ctr_nelems = _dtrace_strsize;
1218
1219 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1220 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr));
1221
1222 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1223 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1224
1225 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1226 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1227
1228 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1229 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1230
1231 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1232 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1233
1234 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR ||
1235 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR ||
1236 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR ||
1237 dtp->dt_type_usymaddr == CTF_ERR) {
1238 dt_dprintf("failed to add intrinsic to D container: %s\n",
1239 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1240 return (set_open_errno(dtp, errp, EDT_CTF));
1241 }
1242
1243 if (ctf_update(dmp->dm_ctfp) != 0) {
1244 dt_dprintf("failed update D container: %s\n",
1245 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1246 return (set_open_errno(dtp, errp, EDT_CTF));
1247 }
1248
1249 /*
1250 * Initialize the integer description table used to convert integer
1251 * constants to the appropriate types. Refer to the comments above
1252 * dt_node_int() for a complete description of how this table is used.
1253 */
1254 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) {
1255 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY,
1256 dtp->dt_ints[i].did_name, &dtt) != 0) {
1257 dt_dprintf("failed to lookup integer type %s: %s\n",
1258 dtp->dt_ints[i].did_name,
1259 dtrace_errmsg(dtp, dtrace_errno(dtp)));
1260 return (set_open_errno(dtp, errp, dtp->dt_errno));
1261 }
1262 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp;
1263 dtp->dt_ints[i].did_type = dtt.dtt_type;
1264 }
1265
1266 /*
1267 * Now that we've created the "C" and "D" containers, move them to the
1268 * start of the module list so that these types and symbols are found
1269 * first (for stability) when iterating through the module list.
1270 */
1271 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs);
1272 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs);
1273
1274 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs);
1275 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs);
1276
1277 if (dt_pfdict_create(dtp) == -1)
1278 return (set_open_errno(dtp, errp, dtp->dt_errno));
1279
1280 /*
1281 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default
1282 * because without /dev/dtrace open, we will not be able to load the
1283 * names and attributes of any providers or probes from the kernel.
1284 */
1285 if (flags & DTRACE_O_NODEV)
1286 dtp->dt_cflags |= DTRACE_C_ZDEFS;
1287
1288 /*
1289 * Load hard-wired inlines into the definition cache by calling the
1290 * compiler on the raw definition string defined above.
1291 */
1292 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire,
1293 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) {
1294 dt_dprintf("failed to load hard-wired definitions: %s\n",
1295 dtrace_errmsg(dtp, dtrace_errno(dtp)));
1296 return (set_open_errno(dtp, errp, EDT_HARDWIRE));
1297 }
1298
1299 dt_program_destroy(dtp, pgp);
1300
1301 /*
1302 * Set up the default DTrace library path. Once set, the next call to
1303 * dt_compile() will compile all the libraries. We intentionally defer
1304 * library processing to improve overhead for clients that don't ever
1305 * compile, and to provide better error reporting (because the full
1306 * reporting of compiler errors requires dtrace_open() to succeed).
1307 */
1308 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0)
1309 return (set_open_errno(dtp, errp, dtp->dt_errno));
1310
1311 return (dtp);
1312 }
1313
1314 dtrace_hdl_t *
1315 dtrace_open(int version, int flags, int *errp)
1316 {
1317 return (dt_vopen(version, flags, errp, NULL, NULL));
1318 }
1319
1320 dtrace_hdl_t *
1321 dtrace_vopen(int version, int flags, int *errp,
1322 const dtrace_vector_t *vector, void *arg)
1323 {
1324 return (dt_vopen(version, flags, errp, vector, arg));
1325 }
1326
1327 void
1328 dtrace_close(dtrace_hdl_t *dtp)
1329 {
1330 dt_ident_t *idp, *ndp;
1331 dt_module_t *dmp;
1332 dt_provider_t *pvp;
1333 dtrace_prog_t *pgp;
1334 dt_xlator_t *dxp;
1335 dt_dirpath_t *dirp;
1336 int i;
1337
1338 if (dtp->dt_procs != NULL)
1339 dt_proc_fini(dtp);
1340
1341 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL)
1342 dt_program_destroy(dtp, pgp);
1343
1344 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL)
1345 dt_xlator_destroy(dtp, dxp);
1346
1347 dt_free(dtp, dtp->dt_xlatormap);
1348
1349 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) {
1350 ndp = idp->di_next;
1351 dt_ident_destroy(idp);
1352 }
1353
1354 if (dtp->dt_macros != NULL)
1355 dt_idhash_destroy(dtp->dt_macros);
1356 if (dtp->dt_aggs != NULL)
1357 dt_idhash_destroy(dtp->dt_aggs);
1358 if (dtp->dt_globals != NULL)
1359 dt_idhash_destroy(dtp->dt_globals);
1360 if (dtp->dt_tls != NULL)
1361 dt_idhash_destroy(dtp->dt_tls);
1362
1363 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL)
1364 dt_module_destroy(dtp, dmp);
1365
1366 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL)
1367 dt_provider_destroy(dtp, pvp);
1368
1369 if (dtp->dt_fd != -1)
1370 (void) close(dtp->dt_fd);
1371 if (dtp->dt_ftfd != -1)
1372 (void) close(dtp->dt_ftfd);
1373 if (dtp->dt_cdefs_fd != -1)
1374 (void) close(dtp->dt_cdefs_fd);
1375 if (dtp->dt_ddefs_fd != -1)
1376 (void) close(dtp->dt_ddefs_fd);
1377 if (dtp->dt_stdout_fd != -1)
1378 (void) close(dtp->dt_stdout_fd);
1379
1380 dt_epid_destroy(dtp);
1381 dt_aggid_destroy(dtp);
1382 dt_format_destroy(dtp);
1383 dt_strdata_destroy(dtp);
1384 dt_buffered_destroy(dtp);
1385 dt_aggregate_destroy(dtp);
1386 dt_pfdict_destroy(dtp);
1387 dt_provmod_destroy(&dtp->dt_provmod);
1388 dt_dof_fini(dtp);
1389
1390 for (i = 1; i < dtp->dt_cpp_argc; i++)
1391 free(dtp->dt_cpp_argv[i]);
1392
1393 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) {
1394 dt_list_delete(&dtp->dt_lib_path, dirp);
1395 free(dirp->dir_path);
1396 free(dirp);
1397 }
1398
1399 free(dtp->dt_cpp_argv);
1400 free(dtp->dt_cpp_path);
1401 free(dtp->dt_ld_path);
1402
1403 free(dtp->dt_mods);
1404 free(dtp->dt_provs);
1405 free(dtp);
1406 }
1407
1408 int
1409 dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods)
1410 {
1411 dt_provmod_t *prov;
1412 int i = 0;
1413
1414 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) {
1415 if (i < nmods)
1416 mods[i] = prov->dp_name;
1417 }
1418
1419 return (i);
1420 }
1421
1422 int
1423 dtrace_ctlfd(dtrace_hdl_t *dtp)
1424 {
1425 return (dtp->dt_fd);
1426 }