xref: /freebsd/cddl/contrib/opensolaris/lib/libdtrace/common/dt_open.c (revision 39beb93c3f8bdbf72a61fda42300b5ebed7390c8)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include <sys/types.h>
30 #if defined(sun)
31 #include <sys/modctl.h>
32 #include <sys/systeminfo.h>
33 #endif
34 #include <sys/resource.h>
35 
36 #include <libelf.h>
37 #include <strings.h>
38 #if defined(sun)
39 #include <alloca.h>
40 #endif
41 #include <limits.h>
42 #include <unistd.h>
43 #include <stdlib.h>
44 #include <stdio.h>
45 #include <fcntl.h>
46 #include <errno.h>
47 #include <assert.h>
48 
49 #define	_POSIX_PTHREAD_SEMANTICS
50 #include <dirent.h>
51 #undef	_POSIX_PTHREAD_SEMANTICS
52 
53 #include <dt_impl.h>
54 #include <dt_program.h>
55 #include <dt_module.h>
56 #include <dt_printf.h>
57 #include <dt_string.h>
58 #include <dt_provider.h>
59 #if !defined(sun)
60 #include <sys/sysctl.h>
61 #include <string.h>
62 #endif
63 #if defined(__i386__)
64 #include <ieeefp.h>
65 #endif
66 
67 /*
68  * Stability and versioning definitions.  These #defines are used in the tables
69  * of identifiers below to fill in the attribute and version fields associated
70  * with each identifier.  The DT_ATTR_* macros are a convenience to permit more
71  * concise declarations of common attributes such as Stable/Stable/Common.  The
72  * DT_VERS_* macros declare the encoded integer values of all versions used so
73  * far.  DT_VERS_LATEST must correspond to the latest version value among all
74  * versions exported by the D compiler.  DT_VERS_STRING must be an ASCII string
75  * that contains DT_VERS_LATEST within it along with any suffixes (e.g. Beta).
76  * You must update DT_VERS_LATEST and DT_VERS_STRING when adding a new version,
77  * and then add the new version to the _dtrace_versions[] array declared below.
78  * Refer to the Solaris Dynamic Tracing Guide Stability and Versioning chapters
79  * respectively for an explanation of these DTrace features and their values.
80  *
81  * NOTE: Although the DTrace versioning scheme supports the labeling and
82  *       introduction of incompatible changes (e.g. dropping an interface in a
83  *       major release), the libdtrace code does not currently support this.
84  *       All versions are assumed to strictly inherit from one another.  If
85  *       we ever need to provide divergent interfaces, this will need work.
86  */
87 #define	DT_ATTR_STABCMN	{ DTRACE_STABILITY_STABLE, \
88 	DTRACE_STABILITY_STABLE, DTRACE_CLASS_COMMON }
89 
90 #define	DT_ATTR_EVOLCMN { DTRACE_STABILITY_EVOLVING, \
91 	DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_COMMON \
92 }
93 
94 /*
95  * The version number should be increased for every customer visible release
96  * of Solaris. The major number should be incremented when a fundamental
97  * change has been made that would affect all consumers, and would reflect
98  * sweeping changes to DTrace or the D language. The minor number should be
99  * incremented when a change is introduced that could break scripts that had
100  * previously worked; for example, adding a new built-in variable could break
101  * a script which was already using that identifier. The micro number should
102  * be changed when introducing functionality changes or major bug fixes that
103  * do not affect backward compatibility -- this is merely to make capabilities
104  * easily determined from the version number. Minor bugs do not require any
105  * modification to the version number.
106  */
107 #define	DT_VERS_1_0	DT_VERSION_NUMBER(1, 0, 0)
108 #define	DT_VERS_1_1	DT_VERSION_NUMBER(1, 1, 0)
109 #define	DT_VERS_1_2	DT_VERSION_NUMBER(1, 2, 0)
110 #define	DT_VERS_1_2_1	DT_VERSION_NUMBER(1, 2, 1)
111 #define	DT_VERS_1_2_2	DT_VERSION_NUMBER(1, 2, 2)
112 #define	DT_VERS_1_3	DT_VERSION_NUMBER(1, 3, 0)
113 #define	DT_VERS_1_4	DT_VERSION_NUMBER(1, 4, 0)
114 #define	DT_VERS_1_4_1	DT_VERSION_NUMBER(1, 4, 1)
115 #define	DT_VERS_1_5	DT_VERSION_NUMBER(1, 5, 0)
116 #define	DT_VERS_1_6	DT_VERSION_NUMBER(1, 6, 0)
117 #define	DT_VERS_1_6_1	DT_VERSION_NUMBER(1, 6, 1)
118 #define	DT_VERS_1_6_2	DT_VERSION_NUMBER(1, 6, 2)
119 #define	DT_VERS_LATEST	DT_VERS_1_6_2
120 #define	DT_VERS_STRING	"Sun D 1.6.2"
121 
122 const dt_version_t _dtrace_versions[] = {
123 	DT_VERS_1_0,	/* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */
124 	DT_VERS_1_1,	/* D API 1.1.0 Solaris Express 6/05 */
125 	DT_VERS_1_2,	/* D API 1.2.0 Solaris 10 Update 1 */
126 	DT_VERS_1_2_1,	/* D API 1.2.1 Solaris Express 4/06 */
127 	DT_VERS_1_2_2,	/* D API 1.2.2 Solaris Express 6/06 */
128 	DT_VERS_1_3,	/* D API 1.3 Solaris Express 10/06 */
129 	DT_VERS_1_4,	/* D API 1.4 Solaris Express 2/07 */
130 	DT_VERS_1_4_1,	/* D API 1.4.1 Solaris Express 4/07 */
131 	DT_VERS_1_5,	/* D API 1.5 Solaris Express 7/07 */
132 	DT_VERS_1_6,	/* D API 1.6 */
133 	DT_VERS_1_6_1,	/* D API 1.6.1 */
134 	DT_VERS_1_6_2,	/* D API 1.6.2 */
135 	0
136 };
137 
138 /*
139  * Global variables that are formatted on FreeBSD based on the kernel file name.
140  */
141 #if !defined(sun)
142 static char	curthread_str[MAXPATHLEN];
143 static char	intmtx_str[MAXPATHLEN];
144 static char	threadmtx_str[MAXPATHLEN];
145 static char	rwlock_str[MAXPATHLEN];
146 static char	sxlock_str[MAXPATHLEN];
147 #endif
148 
149 /*
150  * Table of global identifiers.  This is used to populate the global identifier
151  * hash when a new dtrace client open occurs.  For more info see dt_ident.h.
152  * The global identifiers that represent functions use the dt_idops_func ops
153  * and specify the private data pointer as a prototype string which is parsed
154  * when the identifier is first encountered.  These prototypes look like ANSI
155  * C function prototypes except that the special symbol "@" can be used as a
156  * wildcard to represent a single parameter of any type (i.e. any dt_node_t).
157  * The standard "..." notation can also be used to represent varargs.  An empty
158  * parameter list is taken to mean void (that is, no arguments are permitted).
159  * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional
160  * argument.
161  */
162 static const dt_ident_t _dtrace_globals[] = {
163 { "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0,
164 	&dt_idops_func, "void *(size_t)" },
165 { "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0,
166 	&dt_idops_type, "int64_t" },
167 { "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0,
168 	&dt_idops_type, "int64_t" },
169 { "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0,
170 	&dt_idops_type, "int64_t" },
171 { "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0,
172 	&dt_idops_type, "int64_t" },
173 { "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0,
174 	&dt_idops_type, "int64_t" },
175 { "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0,
176 	&dt_idops_type, "int64_t" },
177 { "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0,
178 	&dt_idops_type, "int64_t" },
179 { "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0,
180 	&dt_idops_type, "int64_t" },
181 { "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0,
182 	&dt_idops_type, "int64_t" },
183 { "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0,
184 	&dt_idops_type, "int64_t" },
185 { "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0,
186 	&dt_idops_args, NULL },
187 { "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0,
188 	&dt_idops_func, "void(@)" },
189 { "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0,
190 	&dt_idops_func, "string(const char *)" },
191 { "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0,
192 	&dt_idops_func, "void(void *, void *, size_t)" },
193 { "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT,
194 	DT_ATTR_STABCMN, DT_VERS_1_0,
195 	&dt_idops_func, "void()" },
196 { "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0,
197 	&dt_idops_type, "uintptr_t" },
198 { "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0,
199 	&dt_idops_func, "void(int)" },
200 { "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN,
201 	DT_VERS_1_0, &dt_idops_func, "string(const char *)" },
202 { "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0,
203 	&dt_idops_func, "void(...)" },
204 { "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0,
205 	&dt_idops_func, "void(int)" },
206 { "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0,
207 	&dt_idops_func, "void *(uintptr_t, size_t)" },
208 { "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR,
209 	DT_ATTR_STABCMN, DT_VERS_1_0,
210 	&dt_idops_func, "string(uintptr_t, [size_t])" },
211 { "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN,
212 	DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" },
213 { "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0,
214 	&dt_idops_func, "void(void *, uintptr_t, size_t)" },
215 { "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR,
216 	DT_ATTR_STABCMN, DT_VERS_1_0,
217 	&dt_idops_func, "void(char *, uintptr_t, size_t)" },
218 { "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0,
219 	&dt_idops_func, "void()" },
220 { "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD,
221 	{ DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE,
222 	DTRACE_CLASS_COMMON }, DT_VERS_1_0,
223 #if defined(sun)
224 	&dt_idops_type, "genunix`kthread_t *" },
225 #else
226 	&dt_idops_type, curthread_str },
227 #endif
228 { "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME,
229 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
230 	&dt_idops_func, "string(void *, int64_t)" },
231 { "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN,
232 	DT_VERS_1_0, &dt_idops_func, "void(...)" },
233 { "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0,
234 	&dt_idops_func, "string(const char *)" },
235 { "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0,
236 	&dt_idops_func, "void(int)" },
237 { "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0,
238 	&dt_idops_type, "uint_t" },
239 { "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0,
240 	&dt_idops_type, "int" },
241 { "execargs", DT_IDENT_SCALAR, 0, DIF_VAR_EXECARGS,
242 	DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
243 { "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME,
244 	DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
245 { "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0,
246 	&dt_idops_func, "void(int)" },
247 { "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN,
248 	DT_VERS_1_1, &dt_idops_func, "void(@, ...)" },
249 { "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN,
250 	DT_VERS_1_0, &dt_idops_func, "void()" },
251 { "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN,
252 	DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" },
253 { "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR,
254 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
255 	&dt_idops_func, "genunix`major_t(genunix`dev_t)" },
256 { "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR,
257 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
258 	&dt_idops_func, "genunix`minor_t(genunix`dev_t)" },
259 { "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
260 	&dt_idops_func, "uint32_t(uint32_t)" },
261 { "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
262 	&dt_idops_func, "uint64_t(uint64_t)" },
263 { "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3,
264 	&dt_idops_func, "uint16_t(uint16_t)" },
265 { "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0,
266 	&dt_idops_type, "gid_t" },
267 { "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0,
268 	&dt_idops_type, "uint_t" },
269 { "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1,
270 	&dt_idops_func, "int(const char *, const char *, [int])" },
271 { "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN,
272 #if defined(sun)
273 	DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" },
274 #else
275 	DT_VERS_1_5, &dt_idops_func, "string(in_addr_t *)" },
276 #endif
277 { "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN,
278 #if defined(sun)
279 	DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" },
280 #else
281 	DT_VERS_1_5, &dt_idops_func, "string(struct in6_addr *)" },
282 #endif
283 { "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN,
284 	DT_VERS_1_5, &dt_idops_func, "string(int, void *)" },
285 { "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0,
286 	&dt_idops_type, "uint_t" },
287 #if defined(sun)
288 { "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0,
289 	&dt_idops_func, "stack(...)" },
290 #endif
291 { "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0,
292 	&dt_idops_func, "string(int64_t)" },
293 { "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE,
294 	DT_ATTR_STABCMN, DT_VERS_1_0,
295 	&dt_idops_func, "void(@, int32_t, int32_t, ...)" },
296 { "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0,
297 	&dt_idops_func, "void(@)" },
298 { "memref", DT_IDENT_FUNC, 0, DIF_SUBR_MEMREF, DT_ATTR_STABCMN, DT_VERS_1_1,
299 	&dt_idops_func, "uintptr_t *(void *, size_t)" },
300 { "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0,
301 	&dt_idops_func, "void(@)" },
302 { "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN,
303 	DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" },
304 { "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE,
305 	DT_ATTR_STABCMN, DT_VERS_1_0,
306 	&dt_idops_func, "size_t(mblk_t *)" },
307 { "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE,
308 	DT_ATTR_STABCMN, DT_VERS_1_0,
309 	&dt_idops_func, "size_t(mblk_t *)" },
310 #if defined(sun)
311 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED,
312 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
313 	&dt_idops_func, "int(genunix`kmutex_t *)" },
314 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER,
315 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
316 	&dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" },
317 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE,
318 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
319 	&dt_idops_func, "int(genunix`kmutex_t *)" },
320 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN,
321 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
322 	&dt_idops_func, "int(genunix`kmutex_t *)" },
323 #else
324 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED,
325 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
326 	&dt_idops_func, intmtx_str },
327 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER,
328 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
329 	&dt_idops_func, threadmtx_str },
330 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE,
331 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
332 	&dt_idops_func, intmtx_str },
333 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN,
334 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
335 	&dt_idops_func, intmtx_str },
336 #endif
337 { "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
338 	&dt_idops_func, "uint32_t(uint32_t)" },
339 { "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
340 	&dt_idops_func, "uint64_t(uint64_t)" },
341 { "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3,
342 	&dt_idops_func, "uint16_t(uint16_t)" },
343 { "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN,
344 	DT_VERS_1_0, &dt_idops_func, "void(...)" },
345 { "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0,
346 	&dt_idops_func, "void()" },
347 { "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0,
348 	&dt_idops_type, "pid_t" },
349 { "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0,
350 	&dt_idops_type, "pid_t" },
351 { "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0,
352 	&dt_idops_func, "void(@, ...)" },
353 { "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0,
354 	&dt_idops_func, "void(@, ...)" },
355 { "printm", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTM, DT_ATTR_STABCMN, DT_VERS_1_0,
356 	&dt_idops_func, "void(size_t, uintptr_t *)" },
357 { "printt", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTT, DT_ATTR_STABCMN, DT_VERS_1_0,
358 	&dt_idops_func, "void(size_t, uintptr_t *)" },
359 { "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC,
360 	DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
361 { "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD,
362 	DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
363 { "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME,
364 	DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
365 { "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV,
366 	DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
367 { "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF,
368 	DT_ATTR_STABCMN, DT_VERS_1_0,
369 	&dt_idops_func, "int(pid_t)" },
370 { "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE,
371 	DT_ATTR_STABCMN, DT_VERS_1_0,
372 	&dt_idops_func, "void(@, ...)" },
373 { "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0,
374 	&dt_idops_func, "void(int)" },
375 { "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0,
376 	&dt_idops_func, "int()" },
377 { "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1,
378 	&dt_idops_func, "int(const char *, const char *, [int])" },
379 #if defined(sun)
380 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER,
381 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
382 	&dt_idops_func, "int(genunix`krwlock_t *)" },
383 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD,
384 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
385 	&dt_idops_func, "int(genunix`krwlock_t *)" },
386 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD,
387 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
388 	&dt_idops_func, "int(genunix`krwlock_t *)" },
389 #else
390 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER,
391 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
392 	&dt_idops_func, rwlock_str },
393 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD,
394 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
395 	&dt_idops_func, rwlock_str },
396 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD,
397 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
398 	&dt_idops_func, rwlock_str },
399 #endif
400 { "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0,
401 	&dt_idops_type, "void" },
402 { "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN,
403 	DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" },
404 { "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE,
405 	DT_ATTR_STABCMN, DT_VERS_1_0,
406 	&dt_idops_func, "void(int)" },
407 { "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION,
408 	DT_ATTR_STABCMN, DT_VERS_1_0,
409 	&dt_idops_func, "int()" },
410 { "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0,
411 	&dt_idops_func, "stack(...)" },
412 { "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH,
413 	DT_ATTR_STABCMN, DT_VERS_1_0,
414 	&dt_idops_type, "uint32_t" },
415 { "stddev", DT_IDENT_AGGFUNC, 0, DTRACEAGG_STDDEV, DT_ATTR_STABCMN,
416 	DT_VERS_1_6, &dt_idops_func, "void(@)" },
417 { "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0,
418 	&dt_idops_func, "void()" },
419 { "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1,
420 	&dt_idops_func, "string(const char *, char)" },
421 { "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0,
422 	&dt_idops_func, "size_t(const char *)" },
423 { "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0,
424 	&dt_idops_func, "string(const char *, const char *)" },
425 { "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1,
426 	&dt_idops_func, "string(const char *, char)" },
427 { "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1,
428 	&dt_idops_func, "string(const char *, const char *)" },
429 { "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1,
430 	&dt_idops_func, "string(const char *, const char *)" },
431 { "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1,
432 	&dt_idops_func, "string(const char *, int, [int])" },
433 { "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0,
434 	&dt_idops_func, "void(@)" },
435 #if !defined(sun)
436 { "sx_isexclusive", DT_IDENT_FUNC, 0, DIF_SUBR_SX_ISEXCLUSIVE,
437 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
438 	&dt_idops_func, sxlock_str },
439 { "sx_shared_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_SHARED_HELD,
440 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
441 	&dt_idops_func, sxlock_str },
442 { "sx_exclusive_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_EXCLUSIVE_HELD,
443 	DT_ATTR_EVOLCMN, DT_VERS_1_0,
444 	&dt_idops_func, sxlock_str },
445 #endif
446 { "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN,
447 	DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" },
448 { "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0,
449 	&dt_idops_func, "void(@, ...)" },
450 { "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0,
451 	&dt_idops_type, "void" },
452 { "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0,
453 	&dt_idops_type, "id_t" },
454 { "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP,
455 	DT_ATTR_STABCMN, DT_VERS_1_0,
456 	&dt_idops_type, "uint64_t" },
457 { "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0,
458 	&dt_idops_func, "void(@)" },
459 { "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM,
460 	DT_ATTR_STABCMN, DT_VERS_1_0,
461 	&dt_idops_func, "void(@, size_t)" },
462 { "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN,
463 	DT_VERS_1_0, &dt_idops_func, "void(...)" },
464 { "typeref", DT_IDENT_FUNC, 0, DIF_SUBR_TYPEREF, DT_ATTR_STABCMN, DT_VERS_1_1,
465 	&dt_idops_func, "uintptr_t *(void *, size_t, string, size_t)" },
466 #if defined(sun)
467 { "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN,
468 	DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
469 { "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN,
470 	DT_VERS_1_2, &dt_idops_type, "uint64_t" },
471 { "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN,
472 	DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
473 #endif
474 { "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0,
475 	&dt_idops_type, "uid_t" },
476 #if defined(sun)
477 { "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN,
478 	DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
479 { "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0,
480 	&dt_idops_regs, NULL },
481 { "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0,
482 	&dt_idops_func, "stack(...)" },
483 { "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH,
484 	DT_ATTR_STABCMN, DT_VERS_1_2,
485 	&dt_idops_type, "uint32_t" },
486 { "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN,
487 	DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
488 #endif
489 { "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP,
490 	DT_ATTR_STABCMN, DT_VERS_1_0,
491 	&dt_idops_type, "uint64_t" },
492 { "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP,
493 	DT_ATTR_STABCMN, DT_VERS_1_0,
494 	&dt_idops_type, "int64_t" },
495 #if defined(sun)
496 { "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME,
497 	DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
498 #endif
499 { NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL }
500 };
501 
502 /*
503  * Tables of ILP32 intrinsic integer and floating-point type templates to use
504  * to populate the dynamic "C" CTF type container.
505  */
506 static const dt_intrinsic_t _dtrace_intrinsics_32[] = {
507 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER },
508 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
509 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER },
510 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
511 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
512 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
513 { "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
514 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
515 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
516 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
517 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
518 { "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
519 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
520 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
521 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER },
522 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER },
523 { "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER },
524 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER },
525 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER },
526 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT },
527 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT },
528 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT },
529 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT },
530 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT },
531 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT },
532 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT },
533 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT },
534 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT },
535 { NULL, { 0, 0, 0 }, 0 }
536 };
537 
538 /*
539  * Tables of LP64 intrinsic integer and floating-point type templates to use
540  * to populate the dynamic "C" CTF type container.
541  */
542 static const dt_intrinsic_t _dtrace_intrinsics_64[] = {
543 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER },
544 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
545 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER },
546 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
547 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
548 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
549 { "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
550 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
551 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
552 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
553 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
554 { "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
555 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
556 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
557 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER },
558 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER },
559 { "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER },
560 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER },
561 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER },
562 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT },
563 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT },
564 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT },
565 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT },
566 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT },
567 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT },
568 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT },
569 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT },
570 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT },
571 { NULL, { 0, 0, 0 }, 0 }
572 };
573 
574 /*
575  * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container.
576  * These aliases ensure that D definitions can use typical <sys/types.h> names.
577  */
578 static const dt_typedef_t _dtrace_typedefs_32[] = {
579 { "char", "int8_t" },
580 { "short", "int16_t" },
581 { "int", "int32_t" },
582 { "long long", "int64_t" },
583 { "int", "intptr_t" },
584 { "int", "ssize_t" },
585 { "unsigned char", "uint8_t" },
586 { "unsigned short", "uint16_t" },
587 { "unsigned", "uint32_t" },
588 { "unsigned long long", "uint64_t" },
589 { "unsigned char", "uchar_t" },
590 { "unsigned short", "ushort_t" },
591 { "unsigned", "uint_t" },
592 { "unsigned long", "ulong_t" },
593 { "unsigned long long", "u_longlong_t" },
594 { "int", "ptrdiff_t" },
595 { "unsigned", "uintptr_t" },
596 { "unsigned", "size_t" },
597 { "long", "id_t" },
598 { "long", "pid_t" },
599 { NULL, NULL }
600 };
601 
602 /*
603  * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container.
604  * These aliases ensure that D definitions can use typical <sys/types.h> names.
605  */
606 static const dt_typedef_t _dtrace_typedefs_64[] = {
607 { "char", "int8_t" },
608 { "short", "int16_t" },
609 { "int", "int32_t" },
610 { "long", "int64_t" },
611 { "long", "intptr_t" },
612 { "long", "ssize_t" },
613 { "unsigned char", "uint8_t" },
614 { "unsigned short", "uint16_t" },
615 { "unsigned", "uint32_t" },
616 { "unsigned long", "uint64_t" },
617 { "unsigned char", "uchar_t" },
618 { "unsigned short", "ushort_t" },
619 { "unsigned", "uint_t" },
620 { "unsigned long", "ulong_t" },
621 { "unsigned long long", "u_longlong_t" },
622 { "long", "ptrdiff_t" },
623 { "unsigned long", "uintptr_t" },
624 { "unsigned long", "size_t" },
625 { "int", "id_t" },
626 { "int", "pid_t" },
627 { NULL, NULL }
628 };
629 
630 /*
631  * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[]
632  * cache when a new dtrace client open occurs.  Values are set by dtrace_open().
633  */
634 static const dt_intdesc_t _dtrace_ints_32[] = {
635 { "int", NULL, CTF_ERR, 0x7fffffffULL },
636 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL },
637 { "long", NULL, CTF_ERR, 0x7fffffffULL },
638 { "unsigned long", NULL, CTF_ERR, 0xffffffffULL },
639 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL },
640 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL }
641 };
642 
643 /*
644  * Tables of LP64 integer type templates used to populate the dtp->dt_ints[]
645  * cache when a new dtrace client open occurs.  Values are set by dtrace_open().
646  */
647 static const dt_intdesc_t _dtrace_ints_64[] = {
648 { "int", NULL, CTF_ERR, 0x7fffffffULL },
649 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL },
650 { "long", NULL, CTF_ERR, 0x7fffffffffffffffULL },
651 { "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL },
652 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL },
653 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL }
654 };
655 
656 /*
657  * Table of macro variable templates used to populate the macro identifier hash
658  * when a new dtrace client open occurs.  Values are set by dtrace_update().
659  */
660 static const dt_ident_t _dtrace_macros[] = {
661 { "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
662 { "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
663 { "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
664 { "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
665 { "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
666 { "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
667 { "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
668 { "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
669 { "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
670 { "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
671 { "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
672 { NULL, 0, 0, 0, { 0, 0, 0 }, 0 }
673 };
674 
675 /*
676  * Hard-wired definition string to be compiled and cached every time a new
677  * DTrace library handle is initialized.  This string should only be used to
678  * contain definitions that should be present regardless of DTRACE_O_NOLIBS.
679  */
680 static const char _dtrace_hardwire[] = "\
681 inline long NULL = 0; \n\
682 #pragma D binding \"1.0\" NULL\n\
683 ";
684 
685 /*
686  * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV.
687  * If DTRACE_O_NODEV is not set, we load the configuration from the kernel.
688  * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are
689  * relying on the fact that when running dtrace(1M), isaexec will invoke the
690  * binary with the same bitness as the kernel, which is what we want by default
691  * when generating our DIF.  The user can override the choice using oflags.
692  */
693 static const dtrace_conf_t _dtrace_conf = {
694 	DIF_VERSION,		/* dtc_difversion */
695 	DIF_DIR_NREGS,		/* dtc_difintregs */
696 	DIF_DTR_NREGS,		/* dtc_diftupregs */
697 	CTF_MODEL_NATIVE	/* dtc_ctfmodel */
698 };
699 
700 const dtrace_attribute_t _dtrace_maxattr = {
701 	DTRACE_STABILITY_MAX,
702 	DTRACE_STABILITY_MAX,
703 	DTRACE_CLASS_MAX
704 };
705 
706 const dtrace_attribute_t _dtrace_defattr = {
707 	DTRACE_STABILITY_STABLE,
708 	DTRACE_STABILITY_STABLE,
709 	DTRACE_CLASS_COMMON
710 };
711 
712 const dtrace_attribute_t _dtrace_symattr = {
713 	DTRACE_STABILITY_PRIVATE,
714 	DTRACE_STABILITY_PRIVATE,
715 	DTRACE_CLASS_UNKNOWN
716 };
717 
718 const dtrace_attribute_t _dtrace_typattr = {
719 	DTRACE_STABILITY_PRIVATE,
720 	DTRACE_STABILITY_PRIVATE,
721 	DTRACE_CLASS_UNKNOWN
722 };
723 
724 const dtrace_attribute_t _dtrace_prvattr = {
725 	DTRACE_STABILITY_PRIVATE,
726 	DTRACE_STABILITY_PRIVATE,
727 	DTRACE_CLASS_UNKNOWN
728 };
729 
730 const dtrace_pattr_t _dtrace_prvdesc = {
731 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
732 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
733 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
734 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
735 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
736 };
737 
738 #if defined(sun)
739 const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */
740 const char *_dtrace_defld = "/usr/ccs/bin/ld";   /* default ld(1) to invoke */
741 #else
742 const char *_dtrace_defcpp = "cpp"; /* default cpp(1) to invoke */
743 const char *_dtrace_defld = "ld";   /* default ld(1) to invoke */
744 #endif
745 
746 const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */
747 #if defined(sun)
748 const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */
749 #else
750 const char *_dtrace_provdir = "/dev/dtrace"; /* provider directory */
751 #endif
752 
753 int _dtrace_strbuckets = 211;	/* default number of hash buckets (prime) */
754 int _dtrace_intbuckets = 256;	/* default number of integer buckets (Pof2) */
755 uint_t _dtrace_strsize = 256;	/* default size of string intrinsic type */
756 uint_t _dtrace_stkindent = 14;	/* default whitespace indent for stack/ustack */
757 uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */
758 uint_t _dtrace_pidlrulim = 8;	/* default number of pid handles to cache */
759 size_t _dtrace_bufsize = 512;	/* default dt_buf_create() size */
760 int _dtrace_argmax = 32;	/* default maximum number of probe arguments */
761 
762 int _dtrace_debug = 0;		/* debug messages enabled (off) */
763 const char *const _dtrace_version = DT_VERS_STRING; /* API version string */
764 #if defined(sun)
765 int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */
766 #endif
767 
768 typedef struct dt_fdlist {
769 	int *df_fds;		/* array of provider driver file descriptors */
770 	uint_t df_ents;		/* number of valid elements in df_fds[] */
771 	uint_t df_size;		/* size of df_fds[] */
772 } dt_fdlist_t;
773 
774 #if defined(sun)
775 #pragma init(_dtrace_init)
776 #else
777 void _dtrace_init(void) __attribute__ ((constructor));
778 #endif
779 void
780 _dtrace_init(void)
781 {
782 	_dtrace_debug = getenv("DTRACE_DEBUG") != NULL;
783 
784 #if defined(sun)
785 	for (; _dtrace_rdvers > 0; _dtrace_rdvers--) {
786 		if (rd_init(_dtrace_rdvers) == RD_OK)
787 			break;
788 	}
789 #endif
790 #if defined(__i386__)
791 	/* make long doubles 64 bits -sson */
792 	(void) fpsetprec(FP_PE);
793 #endif
794 }
795 
796 static dtrace_hdl_t *
797 set_open_errno(dtrace_hdl_t *dtp, int *errp, int err)
798 {
799 	if (dtp != NULL)
800 		dtrace_close(dtp);
801 	if (errp != NULL)
802 		*errp = err;
803 	return (NULL);
804 }
805 
806 static void
807 dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp)
808 {
809 	dt_provmod_t *prov;
810 	char path[PATH_MAX];
811 	int fd;
812 #if defined(sun)
813 	struct dirent *dp, *ep;
814 	DIR *dirp;
815 
816 	if ((dirp = opendir(_dtrace_provdir)) == NULL)
817 		return; /* failed to open directory; just skip it */
818 
819 	ep = alloca(sizeof (struct dirent) + PATH_MAX + 1);
820 	bzero(ep, sizeof (struct dirent) + PATH_MAX + 1);
821 
822 	while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) {
823 		if (dp->d_name[0] == '.')
824 			continue; /* skip "." and ".." */
825 
826 		if (dfp->df_ents == dfp->df_size) {
827 			uint_t size = dfp->df_size ? dfp->df_size * 2 : 16;
828 			int *fds = realloc(dfp->df_fds, size * sizeof (int));
829 
830 			if (fds == NULL)
831 				break; /* skip the rest of this directory */
832 
833 			dfp->df_fds = fds;
834 			dfp->df_size = size;
835 		}
836 
837 		(void) snprintf(path, sizeof (path), "%s/%s",
838 		    _dtrace_provdir, dp->d_name);
839 
840 		if ((fd = open(path, O_RDONLY)) == -1)
841 			continue; /* failed to open driver; just skip it */
842 
843 		if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) ||
844 		    (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) {
845 			free(prov);
846 			(void) close(fd);
847 			break;
848 		}
849 
850 		(void) strcpy(prov->dp_name, dp->d_name);
851 		prov->dp_next = *provmod;
852 		*provmod = prov;
853 
854 		dt_dprintf("opened provider %s\n", dp->d_name);
855 		dfp->df_fds[dfp->df_ents++] = fd;
856 	}
857 
858 	(void) closedir(dirp);
859 #else
860 	char	*p;
861 	char	*p1;
862 	char	*p_providers = NULL;
863 	int	error;
864 	size_t	len = 0;
865 
866 	/*
867 	 * Loop to allocate/reallocate memory for the string of provider
868 	 * names and retry:
869 	 */
870 	while(1) {
871 		/*
872 		 * The first time around, get the string length. The next time,
873 		 * hopefully we've allocated enough memory.
874 		 */
875 		error = sysctlbyname("debug.dtrace.providers",p_providers,&len,NULL,0);
876 		if (len == 0)
877 			/* No providers? That's strange. Where's dtrace? */
878 			break;
879 		else if (error == 0 && p_providers == NULL) {
880 			/*
881 			 * Allocate the initial memory which should be enough
882 			 * unless another provider loads before we have
883 			 * time to go back and get the string.
884 			 */
885 			if ((p_providers = malloc(len)) == NULL)
886 				/* How do we report errors here? */
887 				return;
888 		} else if (error == -1 && errno == ENOMEM) {
889 			/*
890 			 * The current buffer isn't large enough, so
891 			 * reallocate it. We normally won't need to do this
892 			 * because providers aren't being loaded all the time.
893 			 */
894 			if ((p = realloc(p_providers,len)) == NULL)
895 				/* How do we report errors here? */
896 				return;
897 			p_providers = p;
898 		} else
899 			break;
900 	}
901 
902 	/* Check if we got a string of provider names: */
903 	if (error == 0 && len > 0 && p_providers != NULL) {
904 		p = p_providers;
905 
906 		/*
907 		 * Parse the string containing the space separated
908 		 * provider names.
909 		 */
910 		while ((p1 = strsep(&p," ")) != NULL) {
911 			if (dfp->df_ents == dfp->df_size) {
912 				uint_t size = dfp->df_size ? dfp->df_size * 2 : 16;
913 				int *fds = realloc(dfp->df_fds, size * sizeof (int));
914 
915 				if (fds == NULL)
916 					break;
917 
918 				dfp->df_fds = fds;
919 				dfp->df_size = size;
920 			}
921 
922 			(void) snprintf(path, sizeof (path), "/dev/dtrace/%s", p1);
923 
924 			if ((fd = open(path, O_RDONLY)) == -1)
925 				continue; /* failed to open driver; just skip it */
926 
927 			if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) ||
928 			    (prov->dp_name = malloc(strlen(p1) + 1)) == NULL) {
929 				free(prov);
930 				(void) close(fd);
931 				break;
932 			}
933 
934 			(void) strcpy(prov->dp_name, p1);
935 			prov->dp_next = *provmod;
936 			*provmod = prov;
937 
938 			dt_dprintf("opened provider %s\n", p1);
939 			dfp->df_fds[dfp->df_ents++] = fd;
940 		}
941 	}
942 	if (p_providers != NULL)
943 		free(p_providers);
944 #endif
945 }
946 
947 static void
948 dt_provmod_destroy(dt_provmod_t **provmod)
949 {
950 	dt_provmod_t *next, *current;
951 
952 	for (current = *provmod; current != NULL; current = next) {
953 		next = current->dp_next;
954 		free(current->dp_name);
955 		free(current);
956 	}
957 
958 	*provmod = NULL;
959 }
960 
961 #if defined(sun)
962 static const char *
963 dt_get_sysinfo(int cmd, char *buf, size_t len)
964 {
965 	ssize_t rv = sysinfo(cmd, buf, len);
966 	char *p = buf;
967 
968 	if (rv < 0 || rv > len)
969 		(void) snprintf(buf, len, "%s", "Unknown");
970 
971 	while ((p = strchr(p, '.')) != NULL)
972 		*p++ = '_';
973 
974 	return (buf);
975 }
976 #endif
977 
978 static dtrace_hdl_t *
979 dt_vopen(int version, int flags, int *errp,
980     const dtrace_vector_t *vector, void *arg)
981 {
982 	dtrace_hdl_t *dtp = NULL;
983 	int dtfd = -1, ftfd = -1, fterr = 0;
984 	dtrace_prog_t *pgp;
985 	dt_module_t *dmp;
986 	dt_provmod_t *provmod = NULL;
987 	int i, err;
988 	struct rlimit rl;
989 
990 	const dt_intrinsic_t *dinp;
991 	const dt_typedef_t *dtyp;
992 	const dt_ident_t *idp;
993 
994 	dtrace_typeinfo_t dtt;
995 	ctf_funcinfo_t ctc;
996 	ctf_arinfo_t ctr;
997 
998 	dt_fdlist_t df = { NULL, 0, 0 };
999 
1000 	char isadef[32], utsdef[32];
1001 	char s1[64], s2[64];
1002 
1003 	if (version <= 0)
1004 		return (set_open_errno(dtp, errp, EINVAL));
1005 
1006 	if (version > DTRACE_VERSION)
1007 		return (set_open_errno(dtp, errp, EDT_VERSION));
1008 
1009 	if (version < DTRACE_VERSION) {
1010 		/*
1011 		 * Currently, increasing the library version number is used to
1012 		 * denote a binary incompatible change.  That is, a consumer
1013 		 * of the library cannot run on a version of the library with
1014 		 * a higher DTRACE_VERSION number than the consumer compiled
1015 		 * against.  Once the library API has been committed to,
1016 		 * backwards binary compatibility will be required; at that
1017 		 * time, this check should change to return EDT_OVERSION only
1018 		 * if the specified version number is less than the version
1019 		 * number at the time of interface commitment.
1020 		 */
1021 		return (set_open_errno(dtp, errp, EDT_OVERSION));
1022 	}
1023 
1024 	if (flags & ~DTRACE_O_MASK)
1025 		return (set_open_errno(dtp, errp, EINVAL));
1026 
1027 	if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32))
1028 		return (set_open_errno(dtp, errp, EINVAL));
1029 
1030 	if (vector == NULL && arg != NULL)
1031 		return (set_open_errno(dtp, errp, EINVAL));
1032 
1033 	if (elf_version(EV_CURRENT) == EV_NONE)
1034 		return (set_open_errno(dtp, errp, EDT_ELFVERSION));
1035 
1036 	if (vector != NULL || (flags & DTRACE_O_NODEV))
1037 		goto alloc; /* do not attempt to open dtrace device */
1038 
1039 	/*
1040 	 * Before we get going, crank our limit on file descriptors up to the
1041 	 * hard limit.  This is to allow for the fact that libproc keeps file
1042 	 * descriptors to objects open for the lifetime of the proc handle;
1043 	 * without raising our hard limit, we would have an acceptably small
1044 	 * bound on the number of processes that we could concurrently
1045 	 * instrument with the pid provider.
1046 	 */
1047 	if (getrlimit(RLIMIT_NOFILE, &rl) == 0) {
1048 		rl.rlim_cur = rl.rlim_max;
1049 		(void) setrlimit(RLIMIT_NOFILE, &rl);
1050 	}
1051 
1052 	/*
1053 	 * Get the device path of each of the providers.  We hold them open
1054 	 * in the df.df_fds list until we open the DTrace driver itself,
1055 	 * allowing us to see all of the probes provided on this system.  Once
1056 	 * we have the DTrace driver open, we can safely close all the providers
1057 	 * now that they have registered with the framework.
1058 	 */
1059 	dt_provmod_open(&provmod, &df);
1060 
1061 	dtfd = open("/dev/dtrace/dtrace", O_RDWR);
1062 	err = errno; /* save errno from opening dtfd */
1063 
1064 #if defined(sun)
1065 	ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR);
1066 #else
1067 	ftfd = open("/dev/dtrace/fasttrap", O_RDWR);
1068 #endif
1069 	fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */
1070 
1071 	while (df.df_ents-- != 0)
1072 		(void) close(df.df_fds[df.df_ents]);
1073 
1074 	free(df.df_fds);
1075 
1076 	/*
1077 	 * If we failed to open the dtrace device, fail dtrace_open().
1078 	 * We convert some kernel errnos to custom libdtrace errnos to
1079 	 * improve the resulting message from the usual strerror().
1080 	 */
1081 	if (dtfd == -1) {
1082 		dt_provmod_destroy(&provmod);
1083 		switch (err) {
1084 		case ENOENT:
1085 			err = EDT_NOENT;
1086 			break;
1087 		case EBUSY:
1088 			err = EDT_BUSY;
1089 			break;
1090 		case EACCES:
1091 			err = EDT_ACCESS;
1092 			break;
1093 		}
1094 		return (set_open_errno(dtp, errp, err));
1095 	}
1096 
1097 	(void) fcntl(dtfd, F_SETFD, FD_CLOEXEC);
1098 	(void) fcntl(ftfd, F_SETFD, FD_CLOEXEC);
1099 
1100 alloc:
1101 	if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL)
1102 		return (set_open_errno(dtp, errp, EDT_NOMEM));
1103 
1104 	bzero(dtp, sizeof (dtrace_hdl_t));
1105 	dtp->dt_oflags = flags;
1106 	dtp->dt_prcmode = DT_PROC_STOP_PREINIT;
1107 	dtp->dt_linkmode = DT_LINK_KERNEL;
1108 	dtp->dt_linktype = DT_LTYP_ELF;
1109 	dtp->dt_xlatemode = DT_XL_STATIC;
1110 	dtp->dt_stdcmode = DT_STDC_XA;
1111 	dtp->dt_version = version;
1112 	dtp->dt_fd = dtfd;
1113 	dtp->dt_ftfd = ftfd;
1114 	dtp->dt_fterr = fterr;
1115 	dtp->dt_cdefs_fd = -1;
1116 	dtp->dt_ddefs_fd = -1;
1117 #if defined(sun)
1118 	dtp->dt_stdout_fd = -1;
1119 #else
1120 	dtp->dt_freopen_fp = NULL;
1121 #endif
1122 	dtp->dt_modbuckets = _dtrace_strbuckets;
1123 	dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *));
1124 	dtp->dt_provbuckets = _dtrace_strbuckets;
1125 	dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *));
1126 	dt_proc_hash_create(dtp);
1127 	dtp->dt_vmax = DT_VERS_LATEST;
1128 	dtp->dt_cpp_path = strdup(_dtrace_defcpp);
1129 	dtp->dt_cpp_argv = malloc(sizeof (char *));
1130 	dtp->dt_cpp_argc = 1;
1131 	dtp->dt_cpp_args = 1;
1132 	dtp->dt_ld_path = strdup(_dtrace_defld);
1133 	dtp->dt_provmod = provmod;
1134 	dtp->dt_vector = vector;
1135 	dtp->dt_varg = arg;
1136 	dt_dof_init(dtp);
1137 	(void) uname(&dtp->dt_uts);
1138 
1139 	if (dtp->dt_mods == NULL || dtp->dt_provs == NULL ||
1140 	    dtp->dt_procs == NULL || dtp->dt_ld_path == NULL ||
1141 	    dtp->dt_cpp_path == NULL || dtp->dt_cpp_argv == NULL)
1142 		return (set_open_errno(dtp, errp, EDT_NOMEM));
1143 
1144 	for (i = 0; i < DTRACEOPT_MAX; i++)
1145 		dtp->dt_options[i] = DTRACEOPT_UNSET;
1146 
1147 	dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path);
1148 
1149 #if defined(sun)
1150 	(void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u",
1151 	    (uint_t)(sizeof (void *) * NBBY));
1152 
1153 	(void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s",
1154 	    dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)),
1155 	    dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2)));
1156 
1157 	if (dt_cpp_add_arg(dtp, "-D__sun") == NULL ||
1158 	    dt_cpp_add_arg(dtp, "-D__unix") == NULL ||
1159 	    dt_cpp_add_arg(dtp, "-D__SVR4") == NULL ||
1160 	    dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL ||
1161 	    dt_cpp_add_arg(dtp, isadef) == NULL ||
1162 	    dt_cpp_add_arg(dtp, utsdef) == NULL)
1163 		return (set_open_errno(dtp, errp, EDT_NOMEM));
1164 #endif
1165 
1166 	if (flags & DTRACE_O_NODEV)
1167 		bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf));
1168 	else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0)
1169 		return (set_open_errno(dtp, errp, errno));
1170 
1171 	if (flags & DTRACE_O_LP64)
1172 		dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64;
1173 	else if (flags & DTRACE_O_ILP32)
1174 		dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32;
1175 
1176 #ifdef __sparc
1177 	/*
1178 	 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h>
1179 	 * and __sparcv9 is defined if we are doing a 64-bit compile.
1180 	 */
1181 	if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL)
1182 		return (set_open_errno(dtp, errp, EDT_NOMEM));
1183 
1184 	if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 &&
1185 	    dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL)
1186 		return (set_open_errno(dtp, errp, EDT_NOMEM));
1187 #endif
1188 
1189 #if defined(sun)
1190 #ifdef __x86
1191 	/*
1192 	 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit
1193 	 * compiles and __amd64 is defined for 64-bit compiles.  Unlike SPARC,
1194 	 * they are defined exclusive of one another (see PSARC 2004/619).
1195 	 */
1196 	if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) {
1197 		if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL)
1198 			return (set_open_errno(dtp, errp, EDT_NOMEM));
1199 	} else {
1200 		if (dt_cpp_add_arg(dtp, "-D__i386") == NULL)
1201 			return (set_open_errno(dtp, errp, EDT_NOMEM));
1202 	}
1203 #endif
1204 #else
1205 #if defined(__amd64__) || defined(__i386__)
1206 	if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) {
1207 		if (dt_cpp_add_arg(dtp, "-m64") == NULL)
1208 			return (set_open_errno(dtp, errp, EDT_NOMEM));
1209 	} else {
1210 		if (dt_cpp_add_arg(dtp, "-m32") == NULL)
1211 			return (set_open_errno(dtp, errp, EDT_NOMEM));
1212 	}
1213 #endif
1214 #endif
1215 
1216 	if (dtp->dt_conf.dtc_difversion < DIF_VERSION)
1217 		return (set_open_errno(dtp, errp, EDT_DIFVERS));
1218 
1219 	if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32)
1220 		bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32));
1221 	else
1222 		bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64));
1223 
1224 	/*
1225 	 * On FreeBSD the kernel module name can't be hard-coded. The
1226 	 * 'kern.bootfile' sysctl value tells us exactly which file is being
1227 	 * used as the kernel.
1228 	 */
1229 #if !defined(sun)
1230 	{
1231 	char bootfile[MAXPATHLEN];
1232 	char *p;
1233 	int i;
1234 	size_t len = sizeof(bootfile);
1235 
1236 	/* This call shouldn't fail, but use a default just in case. */
1237 	if (sysctlbyname("kern.bootfile", bootfile, &len, NULL, 0) != 0)
1238 		strlcpy(bootfile, "kernel", sizeof(bootfile));
1239 
1240 	if ((p = strrchr(bootfile, '/')) != NULL)
1241 		p++;
1242 	else
1243 		p = bootfile;
1244 
1245 	/*
1246 	 * Format the global variables based on the kernel module name.
1247 	 */
1248 	snprintf(curthread_str, sizeof(curthread_str), "%s`struct thread *",p);
1249 	snprintf(intmtx_str, sizeof(intmtx_str), "int(%s`struct mtx *)",p);
1250 	snprintf(threadmtx_str, sizeof(threadmtx_str), "struct thread *(%s`struct mtx *)",p);
1251 	snprintf(rwlock_str, sizeof(rwlock_str), "int(%s`struct rwlock *)",p);
1252 	snprintf(sxlock_str, sizeof(sxlock_str), "int(%s`struct sxlock *)",p);
1253 	}
1254 #endif
1255 
1256 	dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX);
1257 	dtp->dt_aggs = dt_idhash_create("aggregation", NULL,
1258 	    DTRACE_AGGVARIDNONE + 1, UINT_MAX);
1259 
1260 	dtp->dt_globals = dt_idhash_create("global", _dtrace_globals,
1261 	    DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX);
1262 
1263 	dtp->dt_tls = dt_idhash_create("thread local", NULL,
1264 	    DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX);
1265 
1266 	if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL ||
1267 	    dtp->dt_globals == NULL || dtp->dt_tls == NULL)
1268 		return (set_open_errno(dtp, errp, EDT_NOMEM));
1269 
1270 	/*
1271 	 * Populate the dt_macros identifier hash table by hand: we can't use
1272 	 * the dt_idhash_populate() mechanism because we're not yet compiling
1273 	 * and dtrace_update() needs to immediately reference these idents.
1274 	 */
1275 	for (idp = _dtrace_macros; idp->di_name != NULL; idp++) {
1276 		if (dt_idhash_insert(dtp->dt_macros, idp->di_name,
1277 		    idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr,
1278 		    idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw,
1279 		    idp->di_iarg, 0) == NULL)
1280 			return (set_open_errno(dtp, errp, EDT_NOMEM));
1281 	}
1282 
1283 	/*
1284 	 * Update the module list using /system/object and load the values for
1285 	 * the macro variable definitions according to the current process.
1286 	 */
1287 	dtrace_update(dtp);
1288 
1289 	/*
1290 	 * Select the intrinsics and typedefs we want based on the data model.
1291 	 * The intrinsics are under "C".  The typedefs are added under "D".
1292 	 */
1293 	if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) {
1294 		dinp = _dtrace_intrinsics_32;
1295 		dtyp = _dtrace_typedefs_32;
1296 	} else {
1297 		dinp = _dtrace_intrinsics_64;
1298 		dtyp = _dtrace_typedefs_64;
1299 	}
1300 
1301 	/*
1302 	 * Create a dynamic CTF container under the "C" scope for intrinsic
1303 	 * types and types defined in ANSI-C header files that are included.
1304 	 */
1305 	if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL)
1306 		return (set_open_errno(dtp, errp, EDT_NOMEM));
1307 
1308 	if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL)
1309 		return (set_open_errno(dtp, errp, EDT_CTF));
1310 
1311 	dt_dprintf("created CTF container for %s (%p)\n",
1312 	    dmp->dm_name, (void *)dmp->dm_ctfp);
1313 
1314 	(void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel);
1315 	ctf_setspecific(dmp->dm_ctfp, dmp);
1316 
1317 	dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */
1318 	dmp->dm_modid = -1; /* no module ID */
1319 
1320 	/*
1321 	 * Fill the dynamic "C" CTF container with all of the intrinsic
1322 	 * integer and floating-point types appropriate for this data model.
1323 	 */
1324 	for (; dinp->din_name != NULL; dinp++) {
1325 		if (dinp->din_kind == CTF_K_INTEGER) {
1326 			err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT,
1327 			    dinp->din_name, &dinp->din_data);
1328 		} else {
1329 			err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT,
1330 			    dinp->din_name, &dinp->din_data);
1331 		}
1332 
1333 		if (err == CTF_ERR) {
1334 			dt_dprintf("failed to add %s to C container: %s\n",
1335 			    dinp->din_name, ctf_errmsg(
1336 			    ctf_errno(dmp->dm_ctfp)));
1337 			return (set_open_errno(dtp, errp, EDT_CTF));
1338 		}
1339 	}
1340 
1341 	if (ctf_update(dmp->dm_ctfp) != 0) {
1342 		dt_dprintf("failed to update C container: %s\n",
1343 		    ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1344 		return (set_open_errno(dtp, errp, EDT_CTF));
1345 	}
1346 
1347 	/*
1348 	 * Add intrinsic pointer types that are needed to initialize printf
1349 	 * format dictionary types (see table in dt_printf.c).
1350 	 */
1351 	(void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT,
1352 	    ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1353 
1354 	(void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT,
1355 	    ctf_lookup_by_name(dmp->dm_ctfp, "char"));
1356 
1357 	(void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT,
1358 	    ctf_lookup_by_name(dmp->dm_ctfp, "int"));
1359 
1360 	if (ctf_update(dmp->dm_ctfp) != 0) {
1361 		dt_dprintf("failed to update C container: %s\n",
1362 		    ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1363 		return (set_open_errno(dtp, errp, EDT_CTF));
1364 	}
1365 
1366 	/*
1367 	 * Create a dynamic CTF container under the "D" scope for types that
1368 	 * are defined by the D program itself or on-the-fly by the D compiler.
1369 	 * The "D" CTF container is a child of the "C" CTF container.
1370 	 */
1371 	if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL)
1372 		return (set_open_errno(dtp, errp, EDT_NOMEM));
1373 
1374 	if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL)
1375 		return (set_open_errno(dtp, errp, EDT_CTF));
1376 
1377 	dt_dprintf("created CTF container for %s (%p)\n",
1378 	    dmp->dm_name, (void *)dmp->dm_ctfp);
1379 
1380 	(void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel);
1381 	ctf_setspecific(dmp->dm_ctfp, dmp);
1382 
1383 	dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */
1384 	dmp->dm_modid = -1; /* no module ID */
1385 
1386 	if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) {
1387 		dt_dprintf("failed to import D parent container: %s\n",
1388 		    ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1389 		return (set_open_errno(dtp, errp, EDT_CTF));
1390 	}
1391 
1392 	/*
1393 	 * Fill the dynamic "D" CTF container with all of the built-in typedefs
1394 	 * that we need to use for our D variable and function definitions.
1395 	 * This ensures that basic inttypes.h names are always available to us.
1396 	 */
1397 	for (; dtyp->dty_src != NULL; dtyp++) {
1398 		if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1399 		    dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp,
1400 		    dtyp->dty_src)) == CTF_ERR) {
1401 			dt_dprintf("failed to add typedef %s %s to D "
1402 			    "container: %s", dtyp->dty_src, dtyp->dty_dst,
1403 			    ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1404 			return (set_open_errno(dtp, errp, EDT_CTF));
1405 		}
1406 	}
1407 
1408 	/*
1409 	 * Insert a CTF ID corresponding to a pointer to a type of kind
1410 	 * CTF_K_FUNCTION we can use in the compiler for function pointers.
1411 	 * CTF treats all function pointers as "int (*)()" so we only need one.
1412 	 */
1413 	ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int");
1414 	ctc.ctc_argc = 0;
1415 	ctc.ctc_flags = 0;
1416 
1417 	dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp,
1418 	    CTF_ADD_ROOT, &ctc, NULL);
1419 
1420 	dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp,
1421 	    CTF_ADD_ROOT, dtp->dt_type_func);
1422 
1423 	/*
1424 	 * We also insert CTF definitions for the special D intrinsic types
1425 	 * string and <DYN> into the D container.  The string type is added
1426 	 * as a typedef of char[n].  The <DYN> type is an alias for void.
1427 	 * We compare types to these special CTF ids throughout the compiler.
1428 	 */
1429 	ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char");
1430 	ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long");
1431 	ctr.ctr_nelems = _dtrace_strsize;
1432 
1433 	dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1434 	    "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr));
1435 
1436 	dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1437 	    "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1438 
1439 	dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1440 	    "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1441 
1442 	dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1443 	    "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1444 
1445 	dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1446 	    "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1447 
1448 	if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR ||
1449 	    dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR ||
1450 	    dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR ||
1451 	    dtp->dt_type_usymaddr == CTF_ERR) {
1452 		dt_dprintf("failed to add intrinsic to D container: %s\n",
1453 		    ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1454 		return (set_open_errno(dtp, errp, EDT_CTF));
1455 	}
1456 
1457 	if (ctf_update(dmp->dm_ctfp) != 0) {
1458 		dt_dprintf("failed update D container: %s\n",
1459 		    ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1460 		return (set_open_errno(dtp, errp, EDT_CTF));
1461 	}
1462 
1463 	/*
1464 	 * Initialize the integer description table used to convert integer
1465 	 * constants to the appropriate types.  Refer to the comments above
1466 	 * dt_node_int() for a complete description of how this table is used.
1467 	 */
1468 	for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) {
1469 		if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY,
1470 		    dtp->dt_ints[i].did_name, &dtt) != 0) {
1471 			dt_dprintf("failed to lookup integer type %s: %s\n",
1472 			    dtp->dt_ints[i].did_name,
1473 			    dtrace_errmsg(dtp, dtrace_errno(dtp)));
1474 			return (set_open_errno(dtp, errp, dtp->dt_errno));
1475 		}
1476 		dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp;
1477 		dtp->dt_ints[i].did_type = dtt.dtt_type;
1478 	}
1479 
1480 	/*
1481 	 * Now that we've created the "C" and "D" containers, move them to the
1482 	 * start of the module list so that these types and symbols are found
1483 	 * first (for stability) when iterating through the module list.
1484 	 */
1485 	dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs);
1486 	dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs);
1487 
1488 	dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs);
1489 	dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs);
1490 
1491 	if (dt_pfdict_create(dtp) == -1)
1492 		return (set_open_errno(dtp, errp, dtp->dt_errno));
1493 
1494 	/*
1495 	 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default
1496 	 * because without /dev/dtrace open, we will not be able to load the
1497 	 * names and attributes of any providers or probes from the kernel.
1498 	 */
1499 	if (flags & DTRACE_O_NODEV)
1500 		dtp->dt_cflags |= DTRACE_C_ZDEFS;
1501 
1502 	/*
1503 	 * Load hard-wired inlines into the definition cache by calling the
1504 	 * compiler on the raw definition string defined above.
1505 	 */
1506 	if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire,
1507 	    DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) {
1508 		dt_dprintf("failed to load hard-wired definitions: %s\n",
1509 		    dtrace_errmsg(dtp, dtrace_errno(dtp)));
1510 		return (set_open_errno(dtp, errp, EDT_HARDWIRE));
1511 	}
1512 
1513 	dt_program_destroy(dtp, pgp);
1514 
1515 	/*
1516 	 * Set up the default DTrace library path.  Once set, the next call to
1517 	 * dt_compile() will compile all the libraries.  We intentionally defer
1518 	 * library processing to improve overhead for clients that don't ever
1519 	 * compile, and to provide better error reporting (because the full
1520 	 * reporting of compiler errors requires dtrace_open() to succeed).
1521 	 */
1522 	if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0)
1523 		return (set_open_errno(dtp, errp, dtp->dt_errno));
1524 
1525 	return (dtp);
1526 }
1527 
1528 dtrace_hdl_t *
1529 dtrace_open(int version, int flags, int *errp)
1530 {
1531 	return (dt_vopen(version, flags, errp, NULL, NULL));
1532 }
1533 
1534 dtrace_hdl_t *
1535 dtrace_vopen(int version, int flags, int *errp,
1536     const dtrace_vector_t *vector, void *arg)
1537 {
1538 	return (dt_vopen(version, flags, errp, vector, arg));
1539 }
1540 
1541 void
1542 dtrace_close(dtrace_hdl_t *dtp)
1543 {
1544 	dt_ident_t *idp, *ndp;
1545 	dt_module_t *dmp;
1546 	dt_provider_t *pvp;
1547 	dtrace_prog_t *pgp;
1548 	dt_xlator_t *dxp;
1549 	dt_dirpath_t *dirp;
1550 	int i;
1551 
1552 	if (dtp->dt_procs != NULL)
1553 		dt_proc_hash_destroy(dtp);
1554 
1555 	while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL)
1556 		dt_program_destroy(dtp, pgp);
1557 
1558 	while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL)
1559 		dt_xlator_destroy(dtp, dxp);
1560 
1561 	dt_free(dtp, dtp->dt_xlatormap);
1562 
1563 	for (idp = dtp->dt_externs; idp != NULL; idp = ndp) {
1564 		ndp = idp->di_next;
1565 		dt_ident_destroy(idp);
1566 	}
1567 
1568 	if (dtp->dt_macros != NULL)
1569 		dt_idhash_destroy(dtp->dt_macros);
1570 	if (dtp->dt_aggs != NULL)
1571 		dt_idhash_destroy(dtp->dt_aggs);
1572 	if (dtp->dt_globals != NULL)
1573 		dt_idhash_destroy(dtp->dt_globals);
1574 	if (dtp->dt_tls != NULL)
1575 		dt_idhash_destroy(dtp->dt_tls);
1576 
1577 	while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL)
1578 		dt_module_destroy(dtp, dmp);
1579 
1580 	while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL)
1581 		dt_provider_destroy(dtp, pvp);
1582 
1583 	if (dtp->dt_fd != -1)
1584 		(void) close(dtp->dt_fd);
1585 	if (dtp->dt_ftfd != -1)
1586 		(void) close(dtp->dt_ftfd);
1587 	if (dtp->dt_cdefs_fd != -1)
1588 		(void) close(dtp->dt_cdefs_fd);
1589 	if (dtp->dt_ddefs_fd != -1)
1590 		(void) close(dtp->dt_ddefs_fd);
1591 #if defined(sun)
1592 	if (dtp->dt_stdout_fd != -1)
1593 		(void) close(dtp->dt_stdout_fd);
1594 #else
1595 	if (dtp->dt_freopen_fp != NULL)
1596 		(void) fclose(dtp->dt_freopen_fp);
1597 #endif
1598 
1599 	dt_epid_destroy(dtp);
1600 	dt_aggid_destroy(dtp);
1601 	dt_format_destroy(dtp);
1602 	dt_buffered_destroy(dtp);
1603 	dt_aggregate_destroy(dtp);
1604 	free(dtp->dt_buf.dtbd_data);
1605 	dt_pfdict_destroy(dtp);
1606 	dt_provmod_destroy(&dtp->dt_provmod);
1607 	dt_dof_fini(dtp);
1608 
1609 	for (i = 1; i < dtp->dt_cpp_argc; i++)
1610 		free(dtp->dt_cpp_argv[i]);
1611 
1612 	while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) {
1613 		dt_list_delete(&dtp->dt_lib_path, dirp);
1614 		free(dirp->dir_path);
1615 		free(dirp);
1616 	}
1617 
1618 	free(dtp->dt_cpp_argv);
1619 	free(dtp->dt_cpp_path);
1620 	free(dtp->dt_ld_path);
1621 
1622 	free(dtp->dt_mods);
1623 	free(dtp->dt_provs);
1624 	free(dtp);
1625 }
1626 
1627 int
1628 dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods)
1629 {
1630 	dt_provmod_t *prov;
1631 	int i = 0;
1632 
1633 	for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) {
1634 		if (i < nmods)
1635 			mods[i] = prov->dp_name;
1636 	}
1637 
1638 	return (i);
1639 }
1640 
1641 int
1642 dtrace_ctlfd(dtrace_hdl_t *dtp)
1643 {
1644 	return (dtp->dt_fd);
1645 }
1646