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, 2016 by Delphix. All rights reserved.
26  */
27 
28 #include <sys/types.h>
29 #ifdef illumos
30 #include <sys/modctl.h>
31 #include <sys/systeminfo.h>
32 #else
33 #include <sys/param.h>
34 #include <sys/module.h>
35 #include <sys/linker.h>
36 #endif
37 #include <sys/resource.h>
38 
39 #include <libelf.h>
40 #include <strings.h>
41 #ifdef illumos
42 #include <alloca.h>
43 #endif
44 #include <limits.h>
45 #include <unistd.h>
46 #include <stdlib.h>
47 #include <stdio.h>
48 #include <fcntl.h>
49 #include <errno.h>
50 #include <assert.h>
51 
52 #define	_POSIX_PTHREAD_SEMANTICS
53 #include <dirent.h>
54 #undef	_POSIX_PTHREAD_SEMANTICS
55 
56 #include <dt_impl.h>
57 #include <dt_program.h>
58 #include <dt_module.h>
59 #include <dt_printf.h>
60 #include <dt_string.h>
61 #include <dt_provider.h>
62 #ifndef illumos
63 #include <sys/sysctl.h>
64 #include <string.h>
65 #endif
66 #if defined(__i386__)
67 #include <ieeefp.h>
68 #endif
69 
70 /*
71  * Stability and versioning definitions.  These #defines are used in the tables
72  * of identifiers below to fill in the attribute and version fields associated
73  * with each identifier.  The DT_ATTR_* macros are a convenience to permit more
74  * concise declarations of common attributes such as Stable/Stable/Common.  The
75  * DT_VERS_* macros declare the encoded integer values of all versions used so
76  * far.  DT_VERS_LATEST must correspond to the latest version value among all
77  * versions exported by the D compiler.  DT_VERS_STRING must be an ASCII string
78  * that contains DT_VERS_LATEST within it along with any suffixes (e.g. Beta).
79  * You must update DT_VERS_LATEST and DT_VERS_STRING when adding a new version,
80  * and then add the new version to the _dtrace_versions[] array declared below.
81  * Refer to the Solaris Dynamic Tracing Guide Stability and Versioning chapters
82  * respectively for an explanation of these DTrace features and their values.
83  *
84  * NOTE: Although the DTrace versioning scheme supports the labeling and
85  *       introduction of incompatible changes (e.g. dropping an interface in a
86  *       major release), the libdtrace code does not currently support this.
87  *       All versions are assumed to strictly inherit from one another.  If
88  *       we ever need to provide divergent interfaces, this will need work.
89  */
90 #define	DT_ATTR_STABCMN	{ DTRACE_STABILITY_STABLE, \
91 	DTRACE_STABILITY_STABLE, DTRACE_CLASS_COMMON }
92 
93 #define	DT_ATTR_EVOLCMN { DTRACE_STABILITY_EVOLVING, \
94 	DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_COMMON \
95 }
96 
97 /*
98  * The version number should be increased for every customer visible release
99  * of DTrace. The major number should be incremented when a fundamental
100  * change has been made that would affect all consumers, and would reflect
101  * sweeping changes to DTrace or the D language. The minor number should be
102  * incremented when a change is introduced that could break scripts that had
103  * previously worked; for example, adding a new built-in variable could break
104  * a script which was already using that identifier. The micro number should
105  * be changed when introducing functionality changes or major bug fixes that
106  * do not affect backward compatibility -- this is merely to make capabilities
107  * easily determined from the version number. Minor bugs do not require any
108  * modification to the version number.
109  */
110 #define	DT_VERS_1_0	DT_VERSION_NUMBER(1, 0, 0)
111 #define	DT_VERS_1_1	DT_VERSION_NUMBER(1, 1, 0)
112 #define	DT_VERS_1_2	DT_VERSION_NUMBER(1, 2, 0)
113 #define	DT_VERS_1_2_1	DT_VERSION_NUMBER(1, 2, 1)
114 #define	DT_VERS_1_2_2	DT_VERSION_NUMBER(1, 2, 2)
115 #define	DT_VERS_1_3	DT_VERSION_NUMBER(1, 3, 0)
116 #define	DT_VERS_1_4	DT_VERSION_NUMBER(1, 4, 0)
117 #define	DT_VERS_1_4_1	DT_VERSION_NUMBER(1, 4, 1)
118 #define	DT_VERS_1_5	DT_VERSION_NUMBER(1, 5, 0)
119 #define	DT_VERS_1_6	DT_VERSION_NUMBER(1, 6, 0)
120 #define	DT_VERS_1_6_1	DT_VERSION_NUMBER(1, 6, 1)
121 #define	DT_VERS_1_6_2	DT_VERSION_NUMBER(1, 6, 2)
122 #define	DT_VERS_1_6_3	DT_VERSION_NUMBER(1, 6, 3)
123 #define	DT_VERS_1_7	DT_VERSION_NUMBER(1, 7, 0)
124 #define	DT_VERS_1_7_1	DT_VERSION_NUMBER(1, 7, 1)
125 #define	DT_VERS_1_8	DT_VERSION_NUMBER(1, 8, 0)
126 #define	DT_VERS_1_8_1	DT_VERSION_NUMBER(1, 8, 1)
127 #define	DT_VERS_1_9	DT_VERSION_NUMBER(1, 9, 0)
128 #define	DT_VERS_1_9_1	DT_VERSION_NUMBER(1, 9, 1)
129 #define	DT_VERS_1_10	DT_VERSION_NUMBER(1, 10, 0)
130 #define	DT_VERS_1_11	DT_VERSION_NUMBER(1, 11, 0)
131 #define	DT_VERS_1_12	DT_VERSION_NUMBER(1, 12, 0)
132 #define	DT_VERS_1_12_1	DT_VERSION_NUMBER(1, 12, 1)
133 #define	DT_VERS_1_13	DT_VERSION_NUMBER(1, 13, 0)
134 #define	DT_VERS_LATEST	DT_VERS_1_13
135 #define	DT_VERS_STRING	"Sun D 1.13"
136 
137 const dt_version_t _dtrace_versions[] = {
138 	DT_VERS_1_0,	/* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */
139 	DT_VERS_1_1,	/* D API 1.1.0 Solaris Express 6/05 */
140 	DT_VERS_1_2,	/* D API 1.2.0 Solaris 10 Update 1 */
141 	DT_VERS_1_2_1,	/* D API 1.2.1 Solaris Express 4/06 */
142 	DT_VERS_1_2_2,	/* D API 1.2.2 Solaris Express 6/06 */
143 	DT_VERS_1_3,	/* D API 1.3 Solaris Express 10/06 */
144 	DT_VERS_1_4,	/* D API 1.4 Solaris Express 2/07 */
145 	DT_VERS_1_4_1,	/* D API 1.4.1 Solaris Express 4/07 */
146 	DT_VERS_1_5,	/* D API 1.5 Solaris Express 7/07 */
147 	DT_VERS_1_6,	/* D API 1.6 */
148 	DT_VERS_1_6_1,	/* D API 1.6.1 */
149 	DT_VERS_1_6_2,	/* D API 1.6.2 */
150 	DT_VERS_1_6_3,	/* D API 1.6.3 */
151 	DT_VERS_1_7,	/* D API 1.7 */
152 	DT_VERS_1_7_1,	/* D API 1.7.1 */
153 	DT_VERS_1_8,	/* D API 1.8 */
154 	DT_VERS_1_8_1,	/* D API 1.8.1 */
155 	DT_VERS_1_9,	/* D API 1.9 */
156 	DT_VERS_1_9_1,	/* D API 1.9.1 */
157 	DT_VERS_1_10,	/* D API 1.10 */
158 	DT_VERS_1_11,	/* D API 1.11 */
159 	DT_VERS_1_12,	/* D API 1.12 */
160 	DT_VERS_1_12_1,	/* D API 1.12.1 */
161 	DT_VERS_1_13,	/* D API 1.13 */
162 	0
163 };
164 
165 /*
166  * Global variables that are formatted on FreeBSD based on the kernel file name.
167  */
168 #ifndef illumos
169 static char	curthread_str[MAXPATHLEN];
170 static char	intmtx_str[MAXPATHLEN];
171 static char	threadmtx_str[MAXPATHLEN];
172 static char	rwlock_str[MAXPATHLEN];
173 static char	sxlock_str[MAXPATHLEN];
174 #endif
175 
176 /*
177  * Table of global identifiers.  This is used to populate the global identifier
178  * hash when a new dtrace client open occurs.  For more info see dt_ident.h.
179  * The global identifiers that represent functions use the dt_idops_func ops
180  * and specify the private data pointer as a prototype string which is parsed
181  * when the identifier is first encountered.  These prototypes look like ANSI
182  * C function prototypes except that the special symbol "@" can be used as a
183  * wildcard to represent a single parameter of any type (i.e. any dt_node_t).
184  * The standard "..." notation can also be used to represent varargs.  An empty
185  * parameter list is taken to mean void (that is, no arguments are permitted).
186  * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional
187  * argument.
188  */
189 static const dt_ident_t _dtrace_globals[] = {
190 { "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0,
191 	&dt_idops_func, "void *(size_t)" },
192 { "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0,
193 	&dt_idops_type, "int64_t" },
194 { "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0,
195 	&dt_idops_type, "int64_t" },
196 { "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0,
197 	&dt_idops_type, "int64_t" },
198 { "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0,
199 	&dt_idops_type, "int64_t" },
200 { "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0,
201 	&dt_idops_type, "int64_t" },
202 { "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0,
203 	&dt_idops_type, "int64_t" },
204 { "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0,
205 	&dt_idops_type, "int64_t" },
206 { "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0,
207 	&dt_idops_type, "int64_t" },
208 { "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0,
209 	&dt_idops_type, "int64_t" },
210 { "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0,
211 	&dt_idops_type, "int64_t" },
212 { "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0,
213 	&dt_idops_args, NULL },
214 { "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0,
215 	&dt_idops_func, "void(@)" },
216 { "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0,
217 	&dt_idops_func, "string(const char *)" },
218 { "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0,
219 	&dt_idops_func, "void(void *, void *, size_t)" },
220 { "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT,
221 	DT_ATTR_STABCMN, DT_VERS_1_0,
222 	&dt_idops_func, "void()" },
223 { "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0,
224 	&dt_idops_type, "uintptr_t" },
225 { "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0,
226 	&dt_idops_func, "void(int)" },
227 { "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN,
228 	DT_VERS_1_0, &dt_idops_func, "string(const char *)" },
229 { "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0,
230 	&dt_idops_func, "void(...)" },
231 { "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0,
232 	&dt_idops_func, "void(int)" },
233 { "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0,
234 	&dt_idops_func, "void *(uintptr_t, size_t)" },
235 { "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR,
236 	DT_ATTR_STABCMN, DT_VERS_1_0,
237 	&dt_idops_func, "string(uintptr_t, [size_t])" },
238 { "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN,
239 	DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" },
240 { "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0,
241 	&dt_idops_func, "void(void *, uintptr_t, size_t)" },
242 { "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR,
243 	DT_ATTR_STABCMN, DT_VERS_1_0,
244 	&dt_idops_func, "void(char *, uintptr_t, size_t)" },
245 { "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0,
246 	&dt_idops_func, "void()" },
247 { "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD,
248 	{ DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE,
249 	DTRACE_CLASS_COMMON }, DT_VERS_1_0,
250 #ifdef illumos
251 	&dt_idops_type, "genunix`kthread_t *" },
252 #else
253 	&dt_idops_type, curthread_str },
254 #endif
255 { "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME,
256 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
257 	&dt_idops_func, "string(void *, int64_t)" },
258 { "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN,
259 	DT_VERS_1_0, &dt_idops_func, "void(...)" },
260 { "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0,
261 	&dt_idops_func, "string(const char *)" },
262 { "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0,
263 	&dt_idops_func, "void(int)" },
264 { "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0,
265 	&dt_idops_type, "uint_t" },
266 { "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0,
267 	&dt_idops_type, "int" },
268 { "execargs", DT_IDENT_SCALAR, 0, DIF_VAR_EXECARGS,
269 	DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
270 { "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME,
271 	DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
272 { "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0,
273 	&dt_idops_func, "void(int)" },
274 { "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN,
275 	DT_VERS_1_1, &dt_idops_func, "void(@, ...)" },
276 { "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN,
277 	DT_VERS_1_0, &dt_idops_func, "void()" },
278 { "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN,
279 	DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" },
280 { "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR,
281 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
282 	&dt_idops_func, "genunix`major_t(genunix`dev_t)" },
283 { "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR,
284 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
285 	&dt_idops_func, "genunix`minor_t(genunix`dev_t)" },
286 { "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
287 	&dt_idops_func, "uint32_t(uint32_t)" },
288 { "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
289 	&dt_idops_func, "uint64_t(uint64_t)" },
290 { "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3,
291 	&dt_idops_func, "uint16_t(uint16_t)" },
292 { "getf", DT_IDENT_FUNC, 0, DIF_SUBR_GETF, DT_ATTR_STABCMN, DT_VERS_1_10,
293 	&dt_idops_func, "file_t *(int)" },
294 { "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0,
295 	&dt_idops_type, "gid_t" },
296 { "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0,
297 	&dt_idops_type, "uint_t" },
298 { "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1,
299 	&dt_idops_func, "int(const char *, const char *, [int])" },
300 { "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN,
301 #ifdef illumos
302 	DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" },
303 #else
304 	DT_VERS_1_5, &dt_idops_func, "string(in_addr_t *)" },
305 #endif
306 { "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN,
307 #ifdef illumos
308 	DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" },
309 #else
310 	DT_VERS_1_5, &dt_idops_func, "string(struct in6_addr *)" },
311 #endif
312 { "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN,
313 	DT_VERS_1_5, &dt_idops_func, "string(int, void *)" },
314 { "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0,
315 	&dt_idops_type, "uint_t" },
316 #ifdef __FreeBSD__
317 { "jailname", DT_IDENT_SCALAR, 0, DIF_VAR_JAILNAME,
318 	DT_ATTR_STABCMN, DT_VERS_1_13, &dt_idops_type, "string" },
319 { "jid", DT_IDENT_SCALAR, 0, DIF_VAR_JID, DT_ATTR_STABCMN, DT_VERS_1_13,
320 	&dt_idops_type, "int" },
321 #endif
322 { "json", DT_IDENT_FUNC, 0, DIF_SUBR_JSON, DT_ATTR_STABCMN, DT_VERS_1_11,
323 	&dt_idops_func, "string(const char *, const char *)" },
324 { "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0,
325 	&dt_idops_func, "stack(...)" },
326 { "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0,
327 	&dt_idops_func, "string(int64_t, [int])" },
328 { "llquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LLQUANTIZE, DT_ATTR_STABCMN,
329 	DT_VERS_1_7, &dt_idops_func,
330 	"void(@, int32_t, int32_t, int32_t, int32_t, ...)" },
331 { "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE,
332 	DT_ATTR_STABCMN, DT_VERS_1_0,
333 	&dt_idops_func, "void(@, int32_t, int32_t, ...)" },
334 { "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0,
335 	&dt_idops_func, "void(@)" },
336 { "memref", DT_IDENT_FUNC, 0, DIF_SUBR_MEMREF, DT_ATTR_STABCMN, DT_VERS_1_1,
337 	&dt_idops_func, "uintptr_t *(void *, size_t)" },
338 #ifndef illumos
339 { "memstr", DT_IDENT_FUNC, 0, DIF_SUBR_MEMSTR, DT_ATTR_STABCMN, DT_VERS_1_0,
340 	&dt_idops_func, "string(void *, char, size_t)" },
341 #endif
342 { "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0,
343 	&dt_idops_func, "void(@)" },
344 { "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN,
345 	DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" },
346 #ifdef illumos
347 { "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE,
348 	DT_ATTR_STABCMN, DT_VERS_1_0,
349 	&dt_idops_func, "size_t(mblk_t *)" },
350 { "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE,
351 	DT_ATTR_STABCMN, DT_VERS_1_0,
352 	&dt_idops_func, "size_t(mblk_t *)" },
353 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED,
354 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
355 	&dt_idops_func, "int(genunix`kmutex_t *)" },
356 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER,
357 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
358 	&dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" },
359 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE,
360 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
361 	&dt_idops_func, "int(genunix`kmutex_t *)" },
362 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN,
363 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
364 	&dt_idops_func, "int(genunix`kmutex_t *)" },
365 #else
366 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED,
367 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
368 	&dt_idops_func, intmtx_str },
369 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER,
370 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
371 	&dt_idops_func, threadmtx_str },
372 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE,
373 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
374 	&dt_idops_func, intmtx_str },
375 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN,
376 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
377 	&dt_idops_func, intmtx_str },
378 #endif
379 { "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
380 	&dt_idops_func, "uint32_t(uint32_t)" },
381 { "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
382 	&dt_idops_func, "uint64_t(uint64_t)" },
383 { "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3,
384 	&dt_idops_func, "uint16_t(uint16_t)" },
385 { "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN,
386 	DT_VERS_1_0, &dt_idops_func, "void(...)" },
387 { "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0,
388 	&dt_idops_func, "void()" },
389 { "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0,
390 	&dt_idops_type, "pid_t" },
391 { "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0,
392 	&dt_idops_type, "pid_t" },
393 { "print", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINT, DT_ATTR_STABCMN, DT_VERS_1_9,
394 	&dt_idops_func, "void(@)" },
395 { "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0,
396 	&dt_idops_func, "void(@, ...)" },
397 { "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0,
398 	&dt_idops_func, "void(@, ...)" },
399 { "printm", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTM, DT_ATTR_STABCMN, DT_VERS_1_0,
400 	&dt_idops_func, "void(size_t, uintptr_t *)" },
401 { "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC,
402 	DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
403 { "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD,
404 	DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
405 { "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME,
406 	DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
407 { "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV,
408 	DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
409 { "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF,
410 	DT_ATTR_STABCMN, DT_VERS_1_0,
411 	&dt_idops_func, "int(pid_t)" },
412 { "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE,
413 	DT_ATTR_STABCMN, DT_VERS_1_0,
414 	&dt_idops_func, "void(@, ...)" },
415 { "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0,
416 	&dt_idops_func, "void(int)" },
417 { "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0,
418 	&dt_idops_func, "int()" },
419 { "regs", DT_IDENT_ARRAY, 0, DIF_VAR_REGS, DT_ATTR_STABCMN, DT_VERS_1_13,
420 	&dt_idops_regs, NULL },
421 { "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1,
422 	&dt_idops_func, "int(const char *, const char *, [int])" },
423 #ifdef illumos
424 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER,
425 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
426 	&dt_idops_func, "int(genunix`krwlock_t *)" },
427 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD,
428 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
429 	&dt_idops_func, "int(genunix`krwlock_t *)" },
430 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD,
431 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
432 	&dt_idops_func, "int(genunix`krwlock_t *)" },
433 #else
434 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER,
435 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
436 	&dt_idops_func, rwlock_str },
437 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD,
438 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
439 	&dt_idops_func, rwlock_str },
440 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD,
441 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
442 	&dt_idops_func, rwlock_str },
443 #endif
444 { "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0,
445 	&dt_idops_type, "void" },
446 { "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN,
447 	DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" },
448 { "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE,
449 	DT_ATTR_STABCMN, DT_VERS_1_0,
450 	&dt_idops_func, "void(int)" },
451 { "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION,
452 	DT_ATTR_STABCMN, DT_VERS_1_0,
453 	&dt_idops_func, "int()" },
454 { "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0,
455 	&dt_idops_func, "stack(...)" },
456 { "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH,
457 	DT_ATTR_STABCMN, DT_VERS_1_0,
458 	&dt_idops_type, "uint32_t" },
459 { "stddev", DT_IDENT_AGGFUNC, 0, DTRACEAGG_STDDEV, DT_ATTR_STABCMN,
460 	DT_VERS_1_6, &dt_idops_func, "void(@)" },
461 { "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0,
462 	&dt_idops_func, "void()" },
463 { "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1,
464 	&dt_idops_func, "string(const char *, char)" },
465 { "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0,
466 	&dt_idops_func, "size_t(const char *)" },
467 { "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0,
468 	&dt_idops_func, "string(const char *, const char *)" },
469 { "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1,
470 	&dt_idops_func, "string(const char *, char)" },
471 { "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1,
472 	&dt_idops_func, "string(const char *, const char *)" },
473 { "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1,
474 	&dt_idops_func, "string(const char *, const char *)" },
475 { "strtoll", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOLL, DT_ATTR_STABCMN, DT_VERS_1_11,
476 	&dt_idops_func, "int64_t(const char *, [int])" },
477 { "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1,
478 	&dt_idops_func, "string(const char *, int, [int])" },
479 { "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0,
480 	&dt_idops_func, "void(@)" },
481 #ifndef illumos
482 { "sx_isexclusive", DT_IDENT_FUNC, 0, DIF_SUBR_SX_ISEXCLUSIVE,
483 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
484 	&dt_idops_func, sxlock_str },
485 { "sx_shared_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_SHARED_HELD,
486 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
487 	&dt_idops_func, sxlock_str },
488 { "sx_exclusive_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_EXCLUSIVE_HELD,
489 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
490 	&dt_idops_func, sxlock_str },
491 #endif
492 { "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN,
493 	DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" },
494 { "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0,
495 	&dt_idops_func, "void(@, ...)" },
496 { "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0,
497 	&dt_idops_type, "void" },
498 { "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0,
499 	&dt_idops_type, "id_t" },
500 { "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP,
501 	DT_ATTR_STABCMN, DT_VERS_1_0,
502 	&dt_idops_type, "uint64_t" },
503 { "tolower", DT_IDENT_FUNC, 0, DIF_SUBR_TOLOWER, DT_ATTR_STABCMN, DT_VERS_1_8,
504 	&dt_idops_func, "string(const char *)" },
505 { "toupper", DT_IDENT_FUNC, 0, DIF_SUBR_TOUPPER, DT_ATTR_STABCMN, DT_VERS_1_8,
506 	&dt_idops_func, "string(const char *)" },
507 { "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0,
508 	&dt_idops_func, "void(@)" },
509 { "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM,
510 	DT_ATTR_STABCMN, DT_VERS_1_0,
511 	&dt_idops_func, "void(@, size_t, ...)" },
512 { "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN,
513 	DT_VERS_1_0, &dt_idops_func, "void(...)" },
514 { "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN,
515 	DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
516 { "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN,
517 	DT_VERS_1_2, &dt_idops_type, "uint64_t" },
518 { "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN,
519 	DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
520 { "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0,
521 	&dt_idops_type, "uid_t" },
522 { "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN,
523 	DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
524 { "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0,
525 	&dt_idops_regs, NULL },
526 { "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0,
527 	&dt_idops_func, "stack(...)" },
528 { "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH,
529 	DT_ATTR_STABCMN, DT_VERS_1_2,
530 	&dt_idops_type, "uint32_t" },
531 { "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN,
532 	DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
533 { "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP,
534 	DT_ATTR_STABCMN, DT_VERS_1_0,
535 	&dt_idops_type, "uint64_t" },
536 { "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP,
537 	DT_ATTR_STABCMN, DT_VERS_1_0,
538 	&dt_idops_type, "int64_t" },
539 { "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME,
540 	DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
541 
542 #ifndef illumos
543 { "cpu", DT_IDENT_SCALAR, 0, DIF_VAR_CPU,
544 	DT_ATTR_STABCMN, DT_VERS_1_6_3, &dt_idops_type, "int" },
545 #endif
546 
547 { NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL }
548 };
549 
550 /*
551  * Tables of ILP32 intrinsic integer and floating-point type templates to use
552  * to populate the dynamic "C" CTF type container.
553  */
554 static const dt_intrinsic_t _dtrace_intrinsics_32[] = {
555 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER },
556 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
557 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER },
558 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
559 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
560 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
561 { "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
562 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
563 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
564 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
565 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
566 { "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
567 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
568 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
569 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER },
570 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER },
571 { "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER },
572 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER },
573 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER },
574 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT },
575 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT },
576 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT },
577 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT },
578 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT },
579 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT },
580 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT },
581 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT },
582 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT },
583 { NULL, { 0, 0, 0 }, 0 }
584 };
585 
586 /*
587  * Tables of LP64 intrinsic integer and floating-point type templates to use
588  * to populate the dynamic "C" CTF type container.
589  */
590 static const dt_intrinsic_t _dtrace_intrinsics_64[] = {
591 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER },
592 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
593 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER },
594 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
595 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
596 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
597 { "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
598 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
599 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
600 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
601 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
602 { "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
603 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
604 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
605 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER },
606 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER },
607 { "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER },
608 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER },
609 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER },
610 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT },
611 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT },
612 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT },
613 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT },
614 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT },
615 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT },
616 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT },
617 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT },
618 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT },
619 { NULL, { 0, 0, 0 }, 0 }
620 };
621 
622 /*
623  * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container.
624  * These aliases ensure that D definitions can use typical <sys/types.h> names.
625  */
626 static const dt_typedef_t _dtrace_typedefs_32[] = {
627 { "char", "int8_t" },
628 { "short", "int16_t" },
629 { "int", "int32_t" },
630 { "long long", "int64_t" },
631 { "int", "intptr_t" },
632 { "int", "ssize_t" },
633 { "unsigned char", "uint8_t" },
634 { "unsigned short", "uint16_t" },
635 { "unsigned", "uint32_t" },
636 { "unsigned long long", "uint64_t" },
637 { "unsigned char", "uchar_t" },
638 { "unsigned short", "ushort_t" },
639 { "unsigned", "uint_t" },
640 { "unsigned long", "ulong_t" },
641 { "unsigned long long", "u_longlong_t" },
642 { "int", "ptrdiff_t" },
643 { "unsigned", "uintptr_t" },
644 { "unsigned", "size_t" },
645 { "long", "id_t" },
646 { "long", "pid_t" },
647 { NULL, NULL }
648 };
649 
650 /*
651  * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container.
652  * These aliases ensure that D definitions can use typical <sys/types.h> names.
653  */
654 static const dt_typedef_t _dtrace_typedefs_64[] = {
655 { "char", "int8_t" },
656 { "short", "int16_t" },
657 { "int", "int32_t" },
658 { "long", "int64_t" },
659 { "long", "intptr_t" },
660 { "long", "ssize_t" },
661 { "unsigned char", "uint8_t" },
662 { "unsigned short", "uint16_t" },
663 { "unsigned", "uint32_t" },
664 { "unsigned long", "uint64_t" },
665 { "unsigned char", "uchar_t" },
666 { "unsigned short", "ushort_t" },
667 { "unsigned", "uint_t" },
668 { "unsigned long", "ulong_t" },
669 { "unsigned long long", "u_longlong_t" },
670 { "long", "ptrdiff_t" },
671 { "unsigned long", "uintptr_t" },
672 { "unsigned long", "size_t" },
673 { "int", "id_t" },
674 { "int", "pid_t" },
675 { NULL, NULL }
676 };
677 
678 /*
679  * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[]
680  * cache when a new dtrace client open occurs.  Values are set by dtrace_open().
681  */
682 static const dt_intdesc_t _dtrace_ints_32[] = {
683 { "int", NULL, CTF_ERR, 0x7fffffffULL },
684 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL },
685 { "long", NULL, CTF_ERR, 0x7fffffffULL },
686 { "unsigned long", NULL, CTF_ERR, 0xffffffffULL },
687 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL },
688 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL }
689 };
690 
691 /*
692  * Tables of LP64 integer type templates used to populate the dtp->dt_ints[]
693  * cache when a new dtrace client open occurs.  Values are set by dtrace_open().
694  */
695 static const dt_intdesc_t _dtrace_ints_64[] = {
696 { "int", NULL, CTF_ERR, 0x7fffffffULL },
697 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL },
698 { "long", NULL, CTF_ERR, 0x7fffffffffffffffULL },
699 { "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL },
700 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL },
701 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL }
702 };
703 
704 /*
705  * Table of macro variable templates used to populate the macro identifier hash
706  * when a new dtrace client open occurs.  Values are set by dtrace_update().
707  */
708 static const dt_ident_t _dtrace_macros[] = {
709 { "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
710 { "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
711 { "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
712 { "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
713 { "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
714 { "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
715 { "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
716 { "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
717 { "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
718 { "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
719 { "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
720 { NULL, 0, 0, 0, { 0, 0, 0 }, 0 }
721 };
722 
723 /*
724  * Hard-wired definition string to be compiled and cached every time a new
725  * DTrace library handle is initialized.  This string should only be used to
726  * contain definitions that should be present regardless of DTRACE_O_NOLIBS.
727  */
728 static const char _dtrace_hardwire[] = "\
729 inline long NULL = 0; \n\
730 #pragma D binding \"1.0\" NULL\n\
731 ";
732 
733 /*
734  * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV.
735  * If DTRACE_O_NODEV is not set, we load the configuration from the kernel.
736  * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are
737  * relying on the fact that when running dtrace(1M), isaexec will invoke the
738  * binary with the same bitness as the kernel, which is what we want by default
739  * when generating our DIF.  The user can override the choice using oflags.
740  */
741 static const dtrace_conf_t _dtrace_conf = {
742 	DIF_VERSION,		/* dtc_difversion */
743 	DIF_DIR_NREGS,		/* dtc_difintregs */
744 	DIF_DTR_NREGS,		/* dtc_diftupregs */
745 	CTF_MODEL_NATIVE	/* dtc_ctfmodel */
746 };
747 
748 const dtrace_attribute_t _dtrace_maxattr = {
749 	DTRACE_STABILITY_MAX,
750 	DTRACE_STABILITY_MAX,
751 	DTRACE_CLASS_MAX
752 };
753 
754 const dtrace_attribute_t _dtrace_defattr = {
755 	DTRACE_STABILITY_STABLE,
756 	DTRACE_STABILITY_STABLE,
757 	DTRACE_CLASS_COMMON
758 };
759 
760 const dtrace_attribute_t _dtrace_symattr = {
761 	DTRACE_STABILITY_PRIVATE,
762 	DTRACE_STABILITY_PRIVATE,
763 	DTRACE_CLASS_UNKNOWN
764 };
765 
766 const dtrace_attribute_t _dtrace_typattr = {
767 	DTRACE_STABILITY_PRIVATE,
768 	DTRACE_STABILITY_PRIVATE,
769 	DTRACE_CLASS_UNKNOWN
770 };
771 
772 const dtrace_attribute_t _dtrace_prvattr = {
773 	DTRACE_STABILITY_PRIVATE,
774 	DTRACE_STABILITY_PRIVATE,
775 	DTRACE_CLASS_UNKNOWN
776 };
777 
778 const dtrace_pattr_t _dtrace_prvdesc = {
779 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
780 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
781 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
782 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
783 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
784 };
785 
786 #ifdef illumos
787 const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */
788 const char *_dtrace_defld = "/usr/ccs/bin/ld";   /* default ld(1) to invoke */
789 #else
790 const char *_dtrace_defcpp = "cpp"; /* default cpp(1) to invoke */
791 const char *_dtrace_defld = "ld";   /* default ld(1) to invoke */
792 const char *_dtrace_defobjcopy = "objcopy"; /* default objcopy(1) to invoke */
793 #endif
794 
795 const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */
796 #ifdef illumos
797 const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */
798 #else
799 const char *_dtrace_libdir32 = "/usr/lib32/dtrace";
800 const char *_dtrace_provdir = "/dev/dtrace"; /* provider directory */
801 #endif
802 
803 int _dtrace_strbuckets = 211;	/* default number of hash buckets (prime) */
804 int _dtrace_intbuckets = 256;	/* default number of integer buckets (Pof2) */
805 uint_t _dtrace_strsize = 256;	/* default size of string intrinsic type */
806 uint_t _dtrace_stkindent = 14;	/* default whitespace indent for stack/ustack */
807 uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */
808 uint_t _dtrace_pidlrulim = 8;	/* default number of pid handles to cache */
809 size_t _dtrace_bufsize = 512;	/* default dt_buf_create() size */
810 int _dtrace_argmax = 32;	/* default maximum number of probe arguments */
811 
812 int _dtrace_debug = 0;		/* debug messages enabled (off) */
813 const char *const _dtrace_version = DT_VERS_STRING; /* API version string */
814 int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */
815 
816 typedef struct dt_fdlist {
817 	int *df_fds;		/* array of provider driver file descriptors */
818 	uint_t df_ents;		/* number of valid elements in df_fds[] */
819 	uint_t df_size;		/* size of df_fds[] */
820 } dt_fdlist_t;
821 
822 #ifdef illumos
823 #pragma init(_dtrace_init)
824 #else
825 void _dtrace_init(void) __attribute__ ((constructor));
826 #endif
827 void
828 _dtrace_init(void)
829 {
830 	_dtrace_debug = getenv("DTRACE_DEBUG") != NULL;
831 
832 	for (; _dtrace_rdvers > 0; _dtrace_rdvers--) {
833 		if (rd_init(_dtrace_rdvers) == RD_OK)
834 			break;
835 	}
836 #if defined(__i386__)
837 	/* make long doubles 64 bits -sson */
838 	(void) fpsetprec(FP_PE);
839 #endif
840 }
841 
842 static dtrace_hdl_t *
843 set_open_errno(dtrace_hdl_t *dtp, int *errp, int err)
844 {
845 	if (dtp != NULL)
846 		dtrace_close(dtp);
847 	if (errp != NULL)
848 		*errp = err;
849 	return (NULL);
850 }
851 
852 static void
853 dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp)
854 {
855 	dt_provmod_t *prov;
856 	char path[PATH_MAX];
857 	int fd;
858 #ifdef illumos
859 	struct dirent *dp, *ep;
860 	DIR *dirp;
861 
862 	if ((dirp = opendir(_dtrace_provdir)) == NULL)
863 		return; /* failed to open directory; just skip it */
864 
865 	ep = alloca(sizeof (struct dirent) + PATH_MAX + 1);
866 	bzero(ep, sizeof (struct dirent) + PATH_MAX + 1);
867 
868 	while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) {
869 		if (dp->d_name[0] == '.')
870 			continue; /* skip "." and ".." */
871 
872 		if (dfp->df_ents == dfp->df_size) {
873 			uint_t size = dfp->df_size ? dfp->df_size * 2 : 16;
874 			int *fds = realloc(dfp->df_fds, size * sizeof (int));
875 
876 			if (fds == NULL)
877 				break; /* skip the rest of this directory */
878 
879 			dfp->df_fds = fds;
880 			dfp->df_size = size;
881 		}
882 
883 		(void) snprintf(path, sizeof (path), "%s/%s",
884 		    _dtrace_provdir, dp->d_name);
885 
886 		if ((fd = open(path, O_RDONLY)) == -1)
887 			continue; /* failed to open driver; just skip it */
888 
889 		if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) ||
890 		    (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) {
891 			free(prov);
892 			(void) close(fd);
893 			break;
894 		}
895 
896 		(void) strcpy(prov->dp_name, dp->d_name);
897 		prov->dp_next = *provmod;
898 		*provmod = prov;
899 
900 		dt_dprintf("opened provider %s\n", dp->d_name);
901 		dfp->df_fds[dfp->df_ents++] = fd;
902 	}
903 
904 	(void) closedir(dirp);
905 #else	/* !illumos */
906 	char	*p;
907 	char	*p1;
908 	char	*p_providers = NULL;
909 	int	error;
910 	size_t	len = 0;
911 
912 	/*
913 	 * Loop to allocate/reallocate memory for the string of provider
914 	 * names and retry:
915 	 */
916 	while(1) {
917 		/*
918 		 * The first time around, get the string length. The next time,
919 		 * hopefully we've allocated enough memory.
920 		 */
921 		error = sysctlbyname("debug.dtrace.providers",p_providers,&len,NULL,0);
922 		if (len == 0)
923 			/* No providers? That's strange. Where's dtrace? */
924 			break;
925 		else if (error == 0 && p_providers == NULL) {
926 			/*
927 			 * Allocate the initial memory which should be enough
928 			 * unless another provider loads before we have
929 			 * time to go back and get the string.
930 			 */
931 			if ((p_providers = malloc(len)) == NULL)
932 				/* How do we report errors here? */
933 				return;
934 		} else if (error == -1 && errno == ENOMEM) {
935 			/*
936 			 * The current buffer isn't large enough, so
937 			 * reallocate it. We normally won't need to do this
938 			 * because providers aren't being loaded all the time.
939 			 */
940 		        if ((p = realloc(p_providers,len)) == NULL) {
941 			        free(p_providers);
942 				/* How do we report errors here? */
943 				return;
944 			}
945 			p_providers = p;
946 		} else
947 			break;
948 	}
949 
950 	/* Check if we got a string of provider names: */
951 	if (error == 0 && len > 0 && p_providers != NULL) {
952 		p = p_providers;
953 
954 		/*
955 		 * Parse the string containing the space separated
956 		 * provider names.
957 		 */
958 		while ((p1 = strsep(&p," ")) != NULL) {
959 			if (dfp->df_ents == dfp->df_size) {
960 				uint_t size = dfp->df_size ? dfp->df_size * 2 : 16;
961 				int *fds = realloc(dfp->df_fds, size * sizeof (int));
962 
963 				if (fds == NULL)
964 					break;
965 
966 				dfp->df_fds = fds;
967 				dfp->df_size = size;
968 			}
969 
970 			(void) snprintf(path, sizeof (path), "/dev/dtrace/%s", p1);
971 
972 			if ((fd = open(path, O_RDONLY | O_CLOEXEC)) == -1)
973 				continue; /* failed to open driver; just skip it */
974 
975 			if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) ||
976 			    (prov->dp_name = malloc(strlen(p1) + 1)) == NULL) {
977 				free(prov);
978 				(void) close(fd);
979 				break;
980 			}
981 
982 			(void) strcpy(prov->dp_name, p1);
983 			prov->dp_next = *provmod;
984 			*provmod = prov;
985 
986 			dt_dprintf("opened provider %s\n", p1);
987 			dfp->df_fds[dfp->df_ents++] = fd;
988 		}
989 	}
990 	if (p_providers != NULL)
991 		free(p_providers);
992 #endif	/* illumos */
993 }
994 
995 static void
996 dt_provmod_destroy(dt_provmod_t **provmod)
997 {
998 	dt_provmod_t *next, *current;
999 
1000 	for (current = *provmod; current != NULL; current = next) {
1001 		next = current->dp_next;
1002 		free(current->dp_name);
1003 		free(current);
1004 	}
1005 
1006 	*provmod = NULL;
1007 }
1008 
1009 #ifdef illumos
1010 static const char *
1011 dt_get_sysinfo(int cmd, char *buf, size_t len)
1012 {
1013 	ssize_t rv = sysinfo(cmd, buf, len);
1014 	char *p = buf;
1015 
1016 	if (rv < 0 || rv > len)
1017 		(void) snprintf(buf, len, "%s", "Unknown");
1018 
1019 	while ((p = strchr(p, '.')) != NULL)
1020 		*p++ = '_';
1021 
1022 	return (buf);
1023 }
1024 #endif
1025 
1026 static dtrace_hdl_t *
1027 dt_vopen(int version, int flags, int *errp,
1028     const dtrace_vector_t *vector, void *arg)
1029 {
1030 	dtrace_hdl_t *dtp = NULL;
1031 	int dtfd = -1, ftfd = -1, fterr = 0;
1032 	dtrace_prog_t *pgp;
1033 	dt_module_t *dmp;
1034 	dt_provmod_t *provmod = NULL;
1035 	int i, err;
1036 	struct rlimit rl;
1037 
1038 	const dt_intrinsic_t *dinp;
1039 	const dt_typedef_t *dtyp;
1040 	const dt_ident_t *idp;
1041 
1042 	dtrace_typeinfo_t dtt;
1043 	ctf_funcinfo_t ctc;
1044 	ctf_arinfo_t ctr;
1045 
1046 	dt_fdlist_t df = { NULL, 0, 0 };
1047 
1048 	char isadef[32], utsdef[32];
1049 	char s1[64], s2[64];
1050 
1051 	if (version <= 0)
1052 		return (set_open_errno(dtp, errp, EINVAL));
1053 
1054 	if (version > DTRACE_VERSION)
1055 		return (set_open_errno(dtp, errp, EDT_VERSION));
1056 
1057 	if (version < DTRACE_VERSION) {
1058 		/*
1059 		 * Currently, increasing the library version number is used to
1060 		 * denote a binary incompatible change.  That is, a consumer
1061 		 * of the library cannot run on a version of the library with
1062 		 * a higher DTRACE_VERSION number than the consumer compiled
1063 		 * against.  Once the library API has been committed to,
1064 		 * backwards binary compatibility will be required; at that
1065 		 * time, this check should change to return EDT_OVERSION only
1066 		 * if the specified version number is less than the version
1067 		 * number at the time of interface commitment.
1068 		 */
1069 		return (set_open_errno(dtp, errp, EDT_OVERSION));
1070 	}
1071 
1072 	if (flags & ~DTRACE_O_MASK)
1073 		return (set_open_errno(dtp, errp, EINVAL));
1074 
1075 	if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32))
1076 		return (set_open_errno(dtp, errp, EINVAL));
1077 
1078 	if (vector == NULL && arg != NULL)
1079 		return (set_open_errno(dtp, errp, EINVAL));
1080 
1081 	if (elf_version(EV_CURRENT) == EV_NONE)
1082 		return (set_open_errno(dtp, errp, EDT_ELFVERSION));
1083 
1084 	if (vector != NULL || (flags & DTRACE_O_NODEV))
1085 		goto alloc; /* do not attempt to open dtrace device */
1086 
1087 	/*
1088 	 * Before we get going, crank our limit on file descriptors up to the
1089 	 * hard limit.  This is to allow for the fact that libproc keeps file
1090 	 * descriptors to objects open for the lifetime of the proc handle;
1091 	 * without raising our hard limit, we would have an acceptably small
1092 	 * bound on the number of processes that we could concurrently
1093 	 * instrument with the pid provider.
1094 	 */
1095 	if (getrlimit(RLIMIT_NOFILE, &rl) == 0) {
1096 		rl.rlim_cur = rl.rlim_max;
1097 		(void) setrlimit(RLIMIT_NOFILE, &rl);
1098 	}
1099 
1100 	/*
1101 	 * Get the device path of each of the providers.  We hold them open
1102 	 * in the df.df_fds list until we open the DTrace driver itself,
1103 	 * allowing us to see all of the probes provided on this system.  Once
1104 	 * we have the DTrace driver open, we can safely close all the providers
1105 	 * now that they have registered with the framework.
1106 	 */
1107 	dt_provmod_open(&provmod, &df);
1108 
1109 	dtfd = open("/dev/dtrace/dtrace", O_RDWR | O_CLOEXEC);
1110 	err = dtfd == -1 ? errno : 0; /* save errno from opening dtfd */
1111 #if defined(__FreeBSD__)
1112 	/*
1113 	 * Automatically load the 'dtraceall' module if we couldn't open the
1114 	 * char device.
1115 	 */
1116 	if (err == ENOENT && modfind("dtraceall") < 0) {
1117 		kldload("dtraceall"); /* ignore the error */
1118 		dtfd = open("/dev/dtrace/dtrace", O_RDWR | O_CLOEXEC);
1119 		err = errno;
1120 	}
1121 #endif
1122 #ifdef illumos
1123 	ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR);
1124 #else
1125 	ftfd = open("/dev/dtrace/fasttrap", O_RDWR | O_CLOEXEC);
1126 #endif
1127 	fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */
1128 
1129 	while (df.df_ents-- != 0)
1130 		(void) close(df.df_fds[df.df_ents]);
1131 
1132 	free(df.df_fds);
1133 
1134 	/*
1135 	 * If we failed to open the dtrace device, fail dtrace_open().
1136 	 * We convert some kernel errnos to custom libdtrace errnos to
1137 	 * improve the resulting message from the usual strerror().
1138 	 */
1139 	if (dtfd == -1) {
1140 		dt_provmod_destroy(&provmod);
1141 		switch (err) {
1142 		case ENOENT:
1143 			err = EDT_NOENT;
1144 			break;
1145 		case EBUSY:
1146 			err = EDT_BUSY;
1147 			break;
1148 		case EACCES:
1149 			err = EDT_ACCESS;
1150 			break;
1151 		}
1152 		return (set_open_errno(dtp, errp, err));
1153 	}
1154 
1155 alloc:
1156 	if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL) {
1157 	        dt_provmod_destroy(&provmod);
1158 		return (set_open_errno(dtp, errp, EDT_NOMEM));
1159 	}
1160 
1161 	bzero(dtp, sizeof (dtrace_hdl_t));
1162 	dtp->dt_oflags = flags;
1163 #ifdef illumos
1164 	dtp->dt_prcmode = DT_PROC_STOP_PREINIT;
1165 #else
1166 	dtp->dt_prcmode = DT_PROC_STOP_POSTINIT;
1167 #endif
1168 	dtp->dt_linkmode = DT_LINK_KERNEL;
1169 	dtp->dt_linktype = DT_LTYP_ELF;
1170 	dtp->dt_xlatemode = DT_XL_STATIC;
1171 	dtp->dt_stdcmode = DT_STDC_XA;
1172 	dtp->dt_encoding = DT_ENCODING_UNSET;
1173 	dtp->dt_version = version;
1174 	dtp->dt_fd = dtfd;
1175 	dtp->dt_ftfd = ftfd;
1176 	dtp->dt_fterr = fterr;
1177 	dtp->dt_cdefs_fd = -1;
1178 	dtp->dt_ddefs_fd = -1;
1179 #ifdef illumos
1180 	dtp->dt_stdout_fd = -1;
1181 #else
1182 	dtp->dt_freopen_fp = NULL;
1183 #endif
1184 	dtp->dt_modbuckets = _dtrace_strbuckets;
1185 	dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *));
1186 #ifdef __FreeBSD__
1187 	dtp->dt_kmods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *));
1188 #endif
1189 	dtp->dt_provbuckets = _dtrace_strbuckets;
1190 	dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *));
1191 	dt_proc_init(dtp);
1192 	dtp->dt_vmax = DT_VERS_LATEST;
1193 	dtp->dt_cpp_path = strdup(_dtrace_defcpp);
1194 	dtp->dt_cpp_argv = malloc(sizeof (char *));
1195 	dtp->dt_cpp_argc = 1;
1196 	dtp->dt_cpp_args = 1;
1197 	dtp->dt_ld_path = strdup(_dtrace_defld);
1198 #ifdef __FreeBSD__
1199 	dtp->dt_objcopy_path = strdup(_dtrace_defobjcopy);
1200 #endif
1201 	dtp->dt_provmod = provmod;
1202 	dtp->dt_vector = vector;
1203 	dtp->dt_varg = arg;
1204 	dt_dof_init(dtp);
1205 	(void) uname(&dtp->dt_uts);
1206 
1207 	if (dtp->dt_mods == NULL || dtp->dt_provs == NULL ||
1208 	    dtp->dt_procs == NULL || dtp->dt_proc_env == NULL ||
1209 	    dtp->dt_ld_path == NULL || dtp->dt_cpp_path == NULL ||
1210 #ifdef __FreeBSD__
1211 	    dtp->dt_kmods == NULL ||
1212 	    dtp->dt_objcopy_path == NULL ||
1213 #endif
1214 	    dtp->dt_cpp_argv == NULL)
1215 		return (set_open_errno(dtp, errp, EDT_NOMEM));
1216 
1217 	for (i = 0; i < DTRACEOPT_MAX; i++)
1218 		dtp->dt_options[i] = DTRACEOPT_UNSET;
1219 
1220 	dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path);
1221 
1222 #ifdef illumos
1223 	(void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u",
1224 	    (uint_t)(sizeof (void *) * NBBY));
1225 
1226 	(void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s",
1227 	    dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)),
1228 	    dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2)));
1229 
1230 	if (dt_cpp_add_arg(dtp, "-D__sun") == NULL ||
1231 	    dt_cpp_add_arg(dtp, "-D__unix") == NULL ||
1232 	    dt_cpp_add_arg(dtp, "-D__SVR4") == NULL ||
1233 	    dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL ||
1234 	    dt_cpp_add_arg(dtp, isadef) == NULL ||
1235 	    dt_cpp_add_arg(dtp, utsdef) == NULL)
1236 		return (set_open_errno(dtp, errp, EDT_NOMEM));
1237 #endif
1238 
1239 	if (flags & DTRACE_O_NODEV)
1240 		bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf));
1241 	else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0)
1242 		return (set_open_errno(dtp, errp, errno));
1243 
1244 	if (flags & DTRACE_O_LP64)
1245 		dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64;
1246 	else if (flags & DTRACE_O_ILP32)
1247 		dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32;
1248 
1249 #ifdef __sparc
1250 	/*
1251 	 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h>
1252 	 * and __sparcv9 is defined if we are doing a 64-bit compile.
1253 	 */
1254 	if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL)
1255 		return (set_open_errno(dtp, errp, EDT_NOMEM));
1256 
1257 	if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 &&
1258 	    dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL)
1259 		return (set_open_errno(dtp, errp, EDT_NOMEM));
1260 #endif
1261 
1262 #ifdef illumos
1263 #ifdef __x86
1264 	/*
1265 	 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit
1266 	 * compiles and __amd64 is defined for 64-bit compiles.  Unlike SPARC,
1267 	 * they are defined exclusive of one another (see PSARC 2004/619).
1268 	 */
1269 	if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) {
1270 		if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL)
1271 			return (set_open_errno(dtp, errp, EDT_NOMEM));
1272 	} else {
1273 		if (dt_cpp_add_arg(dtp, "-D__i386") == NULL)
1274 			return (set_open_errno(dtp, errp, EDT_NOMEM));
1275 	}
1276 #endif
1277 #else
1278 #if defined(__amd64__) || defined(__i386__)
1279 	if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) {
1280 		if (dt_cpp_add_arg(dtp, "-m64") == NULL)
1281 			return (set_open_errno(dtp, errp, EDT_NOMEM));
1282 	} else {
1283 		if (dt_cpp_add_arg(dtp, "-m32") == NULL)
1284 			return (set_open_errno(dtp, errp, EDT_NOMEM));
1285 	}
1286 #endif
1287 #endif
1288 
1289 	if (dtp->dt_conf.dtc_difversion < DIF_VERSION)
1290 		return (set_open_errno(dtp, errp, EDT_DIFVERS));
1291 
1292 	if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32)
1293 		bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32));
1294 	else
1295 		bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64));
1296 
1297 	/*
1298 	 * On FreeBSD the kernel module name can't be hard-coded. The
1299 	 * 'kern.bootfile' sysctl value tells us exactly which file is being
1300 	 * used as the kernel.
1301 	 */
1302 #ifndef illumos
1303 	{
1304 	char bootfile[MAXPATHLEN];
1305 	char *p;
1306 	int i;
1307 	size_t len = sizeof(bootfile);
1308 
1309 	/* This call shouldn't fail, but use a default just in case. */
1310 	if (sysctlbyname("kern.bootfile", bootfile, &len, NULL, 0) != 0)
1311 		strlcpy(bootfile, "kernel", sizeof(bootfile));
1312 
1313 	if ((p = strrchr(bootfile, '/')) != NULL)
1314 		p++;
1315 	else
1316 		p = bootfile;
1317 
1318 	/*
1319 	 * Format the global variables based on the kernel module name.
1320 	 */
1321 	snprintf(curthread_str, sizeof(curthread_str), "%s`struct thread *",p);
1322 	snprintf(intmtx_str, sizeof(intmtx_str), "int(%s`struct mtx *)",p);
1323 	snprintf(threadmtx_str, sizeof(threadmtx_str), "struct thread *(%s`struct mtx *)",p);
1324 	snprintf(rwlock_str, sizeof(rwlock_str), "int(%s`struct rwlock *)",p);
1325 	snprintf(sxlock_str, sizeof(sxlock_str), "int(%s`struct sx *)",p);
1326 	}
1327 #endif
1328 
1329 	dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX);
1330 	dtp->dt_aggs = dt_idhash_create("aggregation", NULL,
1331 	    DTRACE_AGGVARIDNONE + 1, UINT_MAX);
1332 
1333 	dtp->dt_globals = dt_idhash_create("global", _dtrace_globals,
1334 	    DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX);
1335 
1336 	dtp->dt_tls = dt_idhash_create("thread local", NULL,
1337 	    DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX);
1338 
1339 	if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL ||
1340 	    dtp->dt_globals == NULL || dtp->dt_tls == NULL)
1341 		return (set_open_errno(dtp, errp, EDT_NOMEM));
1342 
1343 	/*
1344 	 * Populate the dt_macros identifier hash table by hand: we can't use
1345 	 * the dt_idhash_populate() mechanism because we're not yet compiling
1346 	 * and dtrace_update() needs to immediately reference these idents.
1347 	 */
1348 	for (idp = _dtrace_macros; idp->di_name != NULL; idp++) {
1349 		if (dt_idhash_insert(dtp->dt_macros, idp->di_name,
1350 		    idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr,
1351 		    idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw,
1352 		    idp->di_iarg, 0) == NULL)
1353 			return (set_open_errno(dtp, errp, EDT_NOMEM));
1354 	}
1355 
1356 	/*
1357 	 * Update the module list using /system/object and load the values for
1358 	 * the macro variable definitions according to the current process.
1359 	 */
1360 	dtrace_update(dtp);
1361 
1362 	/*
1363 	 * Select the intrinsics and typedefs we want based on the data model.
1364 	 * The intrinsics are under "C".  The typedefs are added under "D".
1365 	 */
1366 	if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) {
1367 		dinp = _dtrace_intrinsics_32;
1368 		dtyp = _dtrace_typedefs_32;
1369 	} else {
1370 		dinp = _dtrace_intrinsics_64;
1371 		dtyp = _dtrace_typedefs_64;
1372 	}
1373 
1374 	/*
1375 	 * Create a dynamic CTF container under the "C" scope for intrinsic
1376 	 * types and types defined in ANSI-C header files that are included.
1377 	 */
1378 	if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL)
1379 		return (set_open_errno(dtp, errp, EDT_NOMEM));
1380 
1381 	if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL)
1382 		return (set_open_errno(dtp, errp, EDT_CTF));
1383 
1384 	dt_dprintf("created CTF container for %s (%p)\n",
1385 	    dmp->dm_name, (void *)dmp->dm_ctfp);
1386 
1387 	(void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel);
1388 	ctf_setspecific(dmp->dm_ctfp, dmp);
1389 
1390 	dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */
1391 	dmp->dm_modid = -1; /* no module ID */
1392 
1393 	/*
1394 	 * Fill the dynamic "C" CTF container with all of the intrinsic
1395 	 * integer and floating-point types appropriate for this data model.
1396 	 */
1397 	for (; dinp->din_name != NULL; dinp++) {
1398 		if (dinp->din_kind == CTF_K_INTEGER) {
1399 			err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT,
1400 			    dinp->din_name, &dinp->din_data);
1401 		} else {
1402 			err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT,
1403 			    dinp->din_name, &dinp->din_data);
1404 		}
1405 
1406 		if (err == CTF_ERR) {
1407 			dt_dprintf("failed to add %s to C container: %s\n",
1408 			    dinp->din_name, ctf_errmsg(
1409 			    ctf_errno(dmp->dm_ctfp)));
1410 			return (set_open_errno(dtp, errp, EDT_CTF));
1411 		}
1412 	}
1413 
1414 	if (ctf_update(dmp->dm_ctfp) != 0) {
1415 		dt_dprintf("failed to update C container: %s\n",
1416 		    ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1417 		return (set_open_errno(dtp, errp, EDT_CTF));
1418 	}
1419 
1420 	/*
1421 	 * Add intrinsic pointer types that are needed to initialize printf
1422 	 * format dictionary types (see table in dt_printf.c).
1423 	 */
1424 	(void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT,
1425 	    ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1426 
1427 	(void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT,
1428 	    ctf_lookup_by_name(dmp->dm_ctfp, "char"));
1429 
1430 	(void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT,
1431 	    ctf_lookup_by_name(dmp->dm_ctfp, "int"));
1432 
1433 	if (ctf_update(dmp->dm_ctfp) != 0) {
1434 		dt_dprintf("failed to update C container: %s\n",
1435 		    ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1436 		return (set_open_errno(dtp, errp, EDT_CTF));
1437 	}
1438 
1439 	/*
1440 	 * Create a dynamic CTF container under the "D" scope for types that
1441 	 * are defined by the D program itself or on-the-fly by the D compiler.
1442 	 * The "D" CTF container is a child of the "C" CTF container.
1443 	 */
1444 	if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL)
1445 		return (set_open_errno(dtp, errp, EDT_NOMEM));
1446 
1447 	if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL)
1448 		return (set_open_errno(dtp, errp, EDT_CTF));
1449 
1450 	dt_dprintf("created CTF container for %s (%p)\n",
1451 	    dmp->dm_name, (void *)dmp->dm_ctfp);
1452 
1453 	(void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel);
1454 	ctf_setspecific(dmp->dm_ctfp, dmp);
1455 
1456 	dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */
1457 	dmp->dm_modid = -1; /* no module ID */
1458 
1459 	if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) {
1460 		dt_dprintf("failed to import D parent container: %s\n",
1461 		    ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1462 		return (set_open_errno(dtp, errp, EDT_CTF));
1463 	}
1464 
1465 	/*
1466 	 * Fill the dynamic "D" CTF container with all of the built-in typedefs
1467 	 * that we need to use for our D variable and function definitions.
1468 	 * This ensures that basic inttypes.h names are always available to us.
1469 	 */
1470 	for (; dtyp->dty_src != NULL; dtyp++) {
1471 		if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1472 		    dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp,
1473 		    dtyp->dty_src)) == CTF_ERR) {
1474 			dt_dprintf("failed to add typedef %s %s to D "
1475 			    "container: %s\n", dtyp->dty_src, dtyp->dty_dst,
1476 			    ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1477 			return (set_open_errno(dtp, errp, EDT_CTF));
1478 		}
1479 	}
1480 
1481 	/*
1482 	 * Insert a CTF ID corresponding to a pointer to a type of kind
1483 	 * CTF_K_FUNCTION we can use in the compiler for function pointers.
1484 	 * CTF treats all function pointers as "int (*)()" so we only need one.
1485 	 */
1486 	ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int");
1487 	ctc.ctc_argc = 0;
1488 	ctc.ctc_flags = 0;
1489 
1490 	dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp,
1491 	    CTF_ADD_ROOT, &ctc, NULL);
1492 
1493 	dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp,
1494 	    CTF_ADD_ROOT, dtp->dt_type_func);
1495 
1496 	/*
1497 	 * We also insert CTF definitions for the special D intrinsic types
1498 	 * string and <DYN> into the D container.  The string type is added
1499 	 * as a typedef of char[n].  The <DYN> type is an alias for void.
1500 	 * We compare types to these special CTF ids throughout the compiler.
1501 	 */
1502 	ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char");
1503 	ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long");
1504 	ctr.ctr_nelems = _dtrace_strsize;
1505 
1506 	dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1507 	    "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr));
1508 
1509 	dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1510 	    "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1511 
1512 	dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1513 	    "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1514 
1515 	dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1516 	    "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1517 
1518 	dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1519 	    "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1520 
1521 	if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR ||
1522 	    dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR ||
1523 	    dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR ||
1524 	    dtp->dt_type_usymaddr == CTF_ERR) {
1525 		dt_dprintf("failed to add intrinsic to D container: %s\n",
1526 		    ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1527 		return (set_open_errno(dtp, errp, EDT_CTF));
1528 	}
1529 
1530 	if (ctf_update(dmp->dm_ctfp) != 0) {
1531 		dt_dprintf("failed update D container: %s\n",
1532 		    ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1533 		return (set_open_errno(dtp, errp, EDT_CTF));
1534 	}
1535 
1536 	/*
1537 	 * Initialize the integer description table used to convert integer
1538 	 * constants to the appropriate types.  Refer to the comments above
1539 	 * dt_node_int() for a complete description of how this table is used.
1540 	 */
1541 	for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) {
1542 		if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY,
1543 		    dtp->dt_ints[i].did_name, &dtt) != 0) {
1544 			dt_dprintf("failed to lookup integer type %s: %s\n",
1545 			    dtp->dt_ints[i].did_name,
1546 			    dtrace_errmsg(dtp, dtrace_errno(dtp)));
1547 			return (set_open_errno(dtp, errp, dtp->dt_errno));
1548 		}
1549 		dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp;
1550 		dtp->dt_ints[i].did_type = dtt.dtt_type;
1551 	}
1552 
1553 	/*
1554 	 * Now that we've created the "C" and "D" containers, move them to the
1555 	 * start of the module list so that these types and symbols are found
1556 	 * first (for stability) when iterating through the module list.
1557 	 */
1558 	dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs);
1559 	dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs);
1560 
1561 	dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs);
1562 	dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs);
1563 
1564 	if (dt_pfdict_create(dtp) == -1)
1565 		return (set_open_errno(dtp, errp, dtp->dt_errno));
1566 
1567 	/*
1568 	 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default
1569 	 * because without /dev/dtrace open, we will not be able to load the
1570 	 * names and attributes of any providers or probes from the kernel.
1571 	 */
1572 	if (flags & DTRACE_O_NODEV)
1573 		dtp->dt_cflags |= DTRACE_C_ZDEFS;
1574 
1575 	/*
1576 	 * Load hard-wired inlines into the definition cache by calling the
1577 	 * compiler on the raw definition string defined above.
1578 	 */
1579 	if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire,
1580 	    DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) {
1581 		dt_dprintf("failed to load hard-wired definitions: %s\n",
1582 		    dtrace_errmsg(dtp, dtrace_errno(dtp)));
1583 		return (set_open_errno(dtp, errp, EDT_HARDWIRE));
1584 	}
1585 
1586 	dt_program_destroy(dtp, pgp);
1587 
1588 	/*
1589 	 * Set up the default DTrace library path.  Once set, the next call to
1590 	 * dt_compile() will compile all the libraries.  We intentionally defer
1591 	 * library processing to improve overhead for clients that don't ever
1592 	 * compile, and to provide better error reporting (because the full
1593 	 * reporting of compiler errors requires dtrace_open() to succeed).
1594 	 */
1595 #ifdef __FreeBSD__
1596 #ifdef __LP64__
1597 	if ((dtp->dt_oflags & DTRACE_O_ILP32) != 0) {
1598 		if (dtrace_setopt(dtp, "libdir", _dtrace_libdir32) != 0)
1599 			return (set_open_errno(dtp, errp, dtp->dt_errno));
1600 	}
1601 #endif
1602 	if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0)
1603 		return (set_open_errno(dtp, errp, dtp->dt_errno));
1604 #else
1605 	if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0)
1606 		return (set_open_errno(dtp, errp, dtp->dt_errno));
1607 #endif
1608 
1609 	return (dtp);
1610 }
1611 
1612 dtrace_hdl_t *
1613 dtrace_open(int version, int flags, int *errp)
1614 {
1615 	return (dt_vopen(version, flags, errp, NULL, NULL));
1616 }
1617 
1618 dtrace_hdl_t *
1619 dtrace_vopen(int version, int flags, int *errp,
1620     const dtrace_vector_t *vector, void *arg)
1621 {
1622 	return (dt_vopen(version, flags, errp, vector, arg));
1623 }
1624 
1625 void
1626 dtrace_close(dtrace_hdl_t *dtp)
1627 {
1628 	dt_ident_t *idp, *ndp;
1629 	dt_module_t *dmp;
1630 	dt_provider_t *pvp;
1631 	dtrace_prog_t *pgp;
1632 	dt_xlator_t *dxp;
1633 	dt_dirpath_t *dirp;
1634 #ifdef __FreeBSD__
1635 	dt_kmodule_t *dkm;
1636 	uint_t h;
1637 #endif
1638 	int i;
1639 
1640 	if (dtp->dt_procs != NULL)
1641 		dt_proc_fini(dtp);
1642 
1643 	while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL)
1644 		dt_program_destroy(dtp, pgp);
1645 
1646 	while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL)
1647 		dt_xlator_destroy(dtp, dxp);
1648 
1649 	dt_free(dtp, dtp->dt_xlatormap);
1650 
1651 	for (idp = dtp->dt_externs; idp != NULL; idp = ndp) {
1652 		ndp = idp->di_next;
1653 		dt_ident_destroy(idp);
1654 	}
1655 
1656 	if (dtp->dt_macros != NULL)
1657 		dt_idhash_destroy(dtp->dt_macros);
1658 	if (dtp->dt_aggs != NULL)
1659 		dt_idhash_destroy(dtp->dt_aggs);
1660 	if (dtp->dt_globals != NULL)
1661 		dt_idhash_destroy(dtp->dt_globals);
1662 	if (dtp->dt_tls != NULL)
1663 		dt_idhash_destroy(dtp->dt_tls);
1664 
1665 #ifdef __FreeBSD__
1666 	for (h = 0; h < dtp->dt_modbuckets; h++)
1667 		while ((dkm = dtp->dt_kmods[h]) != NULL) {
1668 			dtp->dt_kmods[h] = dkm->dkm_next;
1669 			free(dkm->dkm_name);
1670 			free(dkm);
1671 		}
1672 #endif
1673 
1674 	while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL)
1675 		dt_module_destroy(dtp, dmp);
1676 
1677 	while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL)
1678 		dt_provider_destroy(dtp, pvp);
1679 
1680 	if (dtp->dt_fd != -1)
1681 		(void) close(dtp->dt_fd);
1682 	if (dtp->dt_ftfd != -1)
1683 		(void) close(dtp->dt_ftfd);
1684 	if (dtp->dt_cdefs_fd != -1)
1685 		(void) close(dtp->dt_cdefs_fd);
1686 	if (dtp->dt_ddefs_fd != -1)
1687 		(void) close(dtp->dt_ddefs_fd);
1688 #ifdef illumos
1689 	if (dtp->dt_stdout_fd != -1)
1690 		(void) close(dtp->dt_stdout_fd);
1691 #else
1692 	if (dtp->dt_freopen_fp != NULL)
1693 		(void) fclose(dtp->dt_freopen_fp);
1694 #endif
1695 
1696 	dt_epid_destroy(dtp);
1697 	dt_aggid_destroy(dtp);
1698 	dt_format_destroy(dtp);
1699 	dt_strdata_destroy(dtp);
1700 	dt_buffered_destroy(dtp);
1701 	dt_aggregate_destroy(dtp);
1702 	dt_pfdict_destroy(dtp);
1703 	dt_provmod_destroy(&dtp->dt_provmod);
1704 	dt_dof_fini(dtp);
1705 
1706 	for (i = 1; i < dtp->dt_cpp_argc; i++)
1707 		free(dtp->dt_cpp_argv[i]);
1708 
1709 	while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) {
1710 		dt_list_delete(&dtp->dt_lib_path, dirp);
1711 		free(dirp->dir_path);
1712 		free(dirp);
1713 	}
1714 
1715 	free(dtp->dt_cpp_argv);
1716 	free(dtp->dt_cpp_path);
1717 	free(dtp->dt_ld_path);
1718 #ifdef __FreeBSD__
1719 	free(dtp->dt_objcopy_path);
1720 #endif
1721 
1722 	free(dtp->dt_mods);
1723 #ifdef __FreeBSD__
1724 	free(dtp->dt_kmods);
1725 #endif
1726 	free(dtp->dt_provs);
1727 	free(dtp);
1728 }
1729 
1730 int
1731 dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods)
1732 {
1733 	dt_provmod_t *prov;
1734 	int i = 0;
1735 
1736 	for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) {
1737 		if (i < nmods)
1738 			mods[i] = prov->dp_name;
1739 	}
1740 
1741 	return (i);
1742 }
1743 
1744 int
1745 dtrace_ctlfd(dtrace_hdl_t *dtp)
1746 {
1747 	return (dtp->dt_fd);
1748 }
1749