1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2013, Joyent, Inc. All rights reserved.
25 * Copyright (c) 2012 by Delphix. All rights reserved.
26 */
27
28 #include <sys/types.h>
29 #include <sys/modctl.h>
30 #include <sys/systeminfo.h>
31 #include <sys/resource.h>
32
33 #include <libelf.h>
34 #include <strings.h>
35 #include <alloca.h>
36 #include <limits.h>
37 #include <unistd.h>
38 #include <stdlib.h>
39 #include <stdio.h>
40 #include <fcntl.h>
41 #include <errno.h>
42 #include <assert.h>
43
44 #define _POSIX_PTHREAD_SEMANTICS
45 #include <dirent.h>
46 #undef _POSIX_PTHREAD_SEMANTICS
47
48 #include <dt_impl.h>
49 #include <dt_program.h>
50 #include <dt_module.h>
51 #include <dt_printf.h>
52 #include <dt_string.h>
53 #include <dt_provider.h>
54
55 /*
56 * Stability and versioning definitions. These #defines are used in the tables
57 * of identifiers below to fill in the attribute and version fields associated
58 * with each identifier. The DT_ATTR_* macros are a convenience to permit more
59 * concise declarations of common attributes such as Stable/Stable/Common. The
60 * DT_VERS_* macros declare the encoded integer values of all versions used so
61 * far. DT_VERS_LATEST must correspond to the latest version value among all
62 * versions exported by the D compiler. DT_VERS_STRING must be an ASCII string
63 * that contains DT_VERS_LATEST within it along with any suffixes (e.g. Beta).
64 * You must update DT_VERS_LATEST and DT_VERS_STRING when adding a new version,
65 * and then add the new version to the _dtrace_versions[] array declared below.
66 * Refer to the Solaris Dynamic Tracing Guide Stability and Versioning chapters
67 * respectively for an explanation of these DTrace features and their values.
68 *
69 * NOTE: Although the DTrace versioning scheme supports the labeling and
70 * introduction of incompatible changes (e.g. dropping an interface in a
71 * major release), the libdtrace code does not currently support this.
72 * All versions are assumed to strictly inherit from one another. If
73 * we ever need to provide divergent interfaces, this will need work.
74 */
75 #define DT_ATTR_STABCMN { DTRACE_STABILITY_STABLE, \
76 DTRACE_STABILITY_STABLE, DTRACE_CLASS_COMMON }
77
78 #define DT_ATTR_EVOLCMN { DTRACE_STABILITY_EVOLVING, \
79 DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_COMMON \
80 }
81
82 /*
83 * The version number should be increased for every customer visible release
84 * of DTrace. The major number should be incremented when a fundamental
85 * change has been made that would affect all consumers, and would reflect
86 * sweeping changes to DTrace or the D language. The minor number should be
87 * incremented when a change is introduced that could break scripts that had
88 * previously worked; for example, adding a new built-in variable could break
89 * a script which was already using that identifier. The micro number should
90 * be changed when introducing functionality changes or major bug fixes that
91 * do not affect backward compatibility -- this is merely to make capabilities
92 * easily determined from the version number. Minor bugs do not require any
93 * modification to the version number.
94 */
95 #define DT_VERS_1_0 DT_VERSION_NUMBER(1, 0, 0)
96 #define DT_VERS_1_1 DT_VERSION_NUMBER(1, 1, 0)
97 #define DT_VERS_1_2 DT_VERSION_NUMBER(1, 2, 0)
98 #define DT_VERS_1_2_1 DT_VERSION_NUMBER(1, 2, 1)
99 #define DT_VERS_1_2_2 DT_VERSION_NUMBER(1, 2, 2)
100 #define DT_VERS_1_3 DT_VERSION_NUMBER(1, 3, 0)
101 #define DT_VERS_1_4 DT_VERSION_NUMBER(1, 4, 0)
102 #define DT_VERS_1_4_1 DT_VERSION_NUMBER(1, 4, 1)
103 #define DT_VERS_1_5 DT_VERSION_NUMBER(1, 5, 0)
104 #define DT_VERS_1_6 DT_VERSION_NUMBER(1, 6, 0)
105 #define DT_VERS_1_6_1 DT_VERSION_NUMBER(1, 6, 1)
106 #define DT_VERS_1_6_2 DT_VERSION_NUMBER(1, 6, 2)
107 #define DT_VERS_1_6_3 DT_VERSION_NUMBER(1, 6, 3)
108 #define DT_VERS_1_7 DT_VERSION_NUMBER(1, 7, 0)
109 #define DT_VERS_1_7_1 DT_VERSION_NUMBER(1, 7, 1)
110 #define DT_VERS_1_8 DT_VERSION_NUMBER(1, 8, 0)
111 #define DT_VERS_1_8_1 DT_VERSION_NUMBER(1, 8, 1)
112 #define DT_VERS_1_9 DT_VERSION_NUMBER(1, 9, 0)
113 #define DT_VERS_1_9_1 DT_VERSION_NUMBER(1, 9, 1)
114 #define DT_VERS_1_10 DT_VERSION_NUMBER(1, 10, 0)
115 #define DT_VERS_1_11 DT_VERSION_NUMBER(1, 11, 0)
116 #define DT_VERS_1_12 DT_VERSION_NUMBER(1, 12, 0)
117 #define DT_VERS_LATEST DT_VERS_1_12
118 #define DT_VERS_STRING "Sun D 1.12"
119
120 const dt_version_t _dtrace_versions[] = {
121 DT_VERS_1_0, /* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */
122 DT_VERS_1_1, /* D API 1.1.0 Solaris Express 6/05 */
123 DT_VERS_1_2, /* D API 1.2.0 Solaris 10 Update 1 */
124 DT_VERS_1_2_1, /* D API 1.2.1 Solaris Express 4/06 */
125 DT_VERS_1_2_2, /* D API 1.2.2 Solaris Express 6/06 */
126 DT_VERS_1_3, /* D API 1.3 Solaris Express 10/06 */
127 DT_VERS_1_4, /* D API 1.4 Solaris Express 2/07 */
128 DT_VERS_1_4_1, /* D API 1.4.1 Solaris Express 4/07 */
129 DT_VERS_1_5, /* D API 1.5 Solaris Express 7/07 */
130 DT_VERS_1_6, /* D API 1.6 */
131 DT_VERS_1_6_1, /* D API 1.6.1 */
132 DT_VERS_1_6_2, /* D API 1.6.2 */
133 DT_VERS_1_6_3, /* D API 1.6.3 */
134 DT_VERS_1_7, /* D API 1.7 */
135 DT_VERS_1_7_1, /* D API 1.7.1 */
136 DT_VERS_1_8, /* D API 1.8 */
137 DT_VERS_1_8_1, /* D API 1.8.1 */
138 DT_VERS_1_9, /* D API 1.9 */
139 DT_VERS_1_9_1, /* D API 1.9.1 */
140 DT_VERS_1_10, /* D API 1.10 */
141 DT_VERS_1_11, /* D API 1.11 */
142 DT_VERS_1_12, /* D API 1.12 */
143 0
144 };
145
146 /*
147 * Table of global identifiers. This is used to populate the global identifier
148 * hash when a new dtrace client open occurs. For more info see dt_ident.h.
149 * The global identifiers that represent functions use the dt_idops_func ops
150 * and specify the private data pointer as a prototype string which is parsed
151 * when the identifier is first encountered. These prototypes look like ANSI
152 * C function prototypes except that the special symbol "@" can be used as a
153 * wildcard to represent a single parameter of any type (i.e. any dt_node_t).
154 * The standard "..." notation can also be used to represent varargs. An empty
155 * parameter list is taken to mean void (that is, no arguments are permitted).
156 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional
157 * argument.
158 */
159 static const dt_ident_t _dtrace_globals[] = {
160 { "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0,
161 &dt_idops_func, "void *(size_t)" },
162 { "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0,
163 &dt_idops_type, "int64_t" },
164 { "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0,
165 &dt_idops_type, "int64_t" },
166 { "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0,
167 &dt_idops_type, "int64_t" },
168 { "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0,
169 &dt_idops_type, "int64_t" },
170 { "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0,
171 &dt_idops_type, "int64_t" },
172 { "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0,
173 &dt_idops_type, "int64_t" },
174 { "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0,
175 &dt_idops_type, "int64_t" },
176 { "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0,
177 &dt_idops_type, "int64_t" },
178 { "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0,
179 &dt_idops_type, "int64_t" },
180 { "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0,
181 &dt_idops_type, "int64_t" },
182 { "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0,
183 &dt_idops_args, NULL },
184 { "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0,
185 &dt_idops_func, "void(@)" },
186 { "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0,
187 &dt_idops_func, "string(const char *)" },
188 { "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0,
189 &dt_idops_func, "void(void *, void *, size_t)" },
190 { "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT,
191 DT_ATTR_STABCMN, DT_VERS_1_0,
192 &dt_idops_func, "void()" },
193 { "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0,
194 &dt_idops_type, "uintptr_t" },
195 { "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0,
196 &dt_idops_func, "void(int)" },
197 { "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN,
198 DT_VERS_1_0, &dt_idops_func, "string(const char *)" },
199 { "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0,
200 &dt_idops_func, "void(...)" },
201 { "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0,
202 &dt_idops_func, "void(int)" },
203 { "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0,
204 &dt_idops_func, "void *(uintptr_t, size_t)" },
205 { "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR,
206 DT_ATTR_STABCMN, DT_VERS_1_0,
207 &dt_idops_func, "string(uintptr_t, [size_t])" },
208 { "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN,
209 DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" },
210 { "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0,
211 &dt_idops_func, "void(void *, uintptr_t, size_t)" },
212 { "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR,
213 DT_ATTR_STABCMN, DT_VERS_1_0,
214 &dt_idops_func, "void(char *, uintptr_t, size_t)" },
215 { "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0,
216 &dt_idops_func, "void()" },
217 { "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD,
218 { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE,
219 DTRACE_CLASS_COMMON }, DT_VERS_1_0,
220 &dt_idops_type, "genunix`kthread_t *" },
221 { "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME,
222 DT_ATTR_EVOLCMN, DT_VERS_1_0,
223 &dt_idops_func, "string(void *, int64_t)" },
224 { "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN,
225 DT_VERS_1_0, &dt_idops_func, "void(...)" },
226 { "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0,
227 &dt_idops_func, "string(const char *)" },
228 { "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0,
229 &dt_idops_func, "void(int)" },
230 { "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0,
231 &dt_idops_type, "uint_t" },
232 { "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0,
233 &dt_idops_type, "int" },
234 { "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME,
235 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
236 { "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0,
237 &dt_idops_func, "void(int)" },
238 { "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN,
239 DT_VERS_1_1, &dt_idops_func, "void(@, ...)" },
240 { "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN,
241 DT_VERS_1_0, &dt_idops_func, "void()" },
242 { "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN,
243 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" },
244 { "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR,
245 DT_ATTR_EVOLCMN, DT_VERS_1_0,
246 &dt_idops_func, "genunix`major_t(genunix`dev_t)" },
247 { "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR,
248 DT_ATTR_EVOLCMN, DT_VERS_1_0,
249 &dt_idops_func, "genunix`minor_t(genunix`dev_t)" },
250 { "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
251 &dt_idops_func, "uint32_t(uint32_t)" },
252 { "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
253 &dt_idops_func, "uint64_t(uint64_t)" },
254 { "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3,
255 &dt_idops_func, "uint16_t(uint16_t)" },
256 { "getf", DT_IDENT_FUNC, 0, DIF_SUBR_GETF, DT_ATTR_STABCMN, DT_VERS_1_10,
257 &dt_idops_func, "file_t *(int)" },
258 { "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0,
259 &dt_idops_type, "gid_t" },
260 { "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0,
261 &dt_idops_type, "uint_t" },
262 { "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1,
263 &dt_idops_func, "int(const char *, const char *, [int])" },
264 { "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN,
265 DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" },
266 { "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN,
267 DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" },
268 { "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN,
269 DT_VERS_1_5, &dt_idops_func, "string(int, void *)" },
270 { "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0,
271 &dt_idops_type, "uint_t" },
272 { "json", DT_IDENT_FUNC, 0, DIF_SUBR_JSON, DT_ATTR_STABCMN, DT_VERS_1_11,
273 &dt_idops_func, "string(const char *, const char *)" },
274 { "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0,
275 &dt_idops_func, "stack(...)" },
276 { "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0,
277 &dt_idops_func, "string(int64_t, [int])" },
278 { "llquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LLQUANTIZE, DT_ATTR_STABCMN,
279 DT_VERS_1_7, &dt_idops_func,
280 "void(@, int32_t, int32_t, int32_t, int32_t, ...)" },
281 { "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE,
282 DT_ATTR_STABCMN, DT_VERS_1_0,
283 &dt_idops_func, "void(@, int32_t, int32_t, ...)" },
284 { "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0,
285 &dt_idops_func, "void(@)" },
286 { "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0,
287 &dt_idops_func, "void(@)" },
288 { "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN,
289 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" },
290 { "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE,
291 DT_ATTR_STABCMN, DT_VERS_1_0,
292 &dt_idops_func, "size_t(mblk_t *)" },
293 { "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE,
294 DT_ATTR_STABCMN, DT_VERS_1_0,
295 &dt_idops_func, "size_t(mblk_t *)" },
296 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED,
297 DT_ATTR_EVOLCMN, DT_VERS_1_0,
298 &dt_idops_func, "int(genunix`kmutex_t *)" },
299 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER,
300 DT_ATTR_EVOLCMN, DT_VERS_1_0,
301 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" },
302 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE,
303 DT_ATTR_EVOLCMN, DT_VERS_1_0,
304 &dt_idops_func, "int(genunix`kmutex_t *)" },
305 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN,
306 DT_ATTR_EVOLCMN, DT_VERS_1_0,
307 &dt_idops_func, "int(genunix`kmutex_t *)" },
308 { "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
309 &dt_idops_func, "uint32_t(uint32_t)" },
310 { "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
311 &dt_idops_func, "uint64_t(uint64_t)" },
312 { "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3,
313 &dt_idops_func, "uint16_t(uint16_t)" },
314 { "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN,
315 DT_VERS_1_0, &dt_idops_func, "void(...)" },
316 { "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0,
317 &dt_idops_func, "void()" },
318 { "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0,
319 &dt_idops_type, "pid_t" },
320 { "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0,
321 &dt_idops_type, "pid_t" },
322 { "print", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINT, DT_ATTR_STABCMN, DT_VERS_1_9,
323 &dt_idops_func, "void(@)" },
324 { "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0,
325 &dt_idops_func, "void(@, ...)" },
326 { "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0,
327 &dt_idops_func, "void(@, ...)" },
328 { "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC,
329 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
330 { "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD,
331 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
332 { "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME,
333 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
334 { "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV,
335 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
336 { "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF,
337 DT_ATTR_STABCMN, DT_VERS_1_0,
338 &dt_idops_func, "int(pid_t)" },
339 { "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE,
340 DT_ATTR_STABCMN, DT_VERS_1_0,
341 &dt_idops_func, "void(@, ...)" },
342 { "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0,
343 &dt_idops_func, "void(int)" },
344 { "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0,
345 &dt_idops_func, "int()" },
346 { "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1,
347 &dt_idops_func, "int(const char *, const char *, [int])" },
348 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER,
349 DT_ATTR_EVOLCMN, DT_VERS_1_0,
350 &dt_idops_func, "int(genunix`krwlock_t *)" },
351 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD,
352 DT_ATTR_EVOLCMN, DT_VERS_1_0,
353 &dt_idops_func, "int(genunix`krwlock_t *)" },
354 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD,
355 DT_ATTR_EVOLCMN, DT_VERS_1_0,
356 &dt_idops_func, "int(genunix`krwlock_t *)" },
357 { "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0,
358 &dt_idops_type, "void" },
359 { "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN,
360 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" },
361 { "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE,
362 DT_ATTR_STABCMN, DT_VERS_1_0,
363 &dt_idops_func, "void(int)" },
364 { "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION,
365 DT_ATTR_STABCMN, DT_VERS_1_0,
366 &dt_idops_func, "int()" },
367 { "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0,
368 &dt_idops_func, "stack(...)" },
369 { "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH,
370 DT_ATTR_STABCMN, DT_VERS_1_0,
371 &dt_idops_type, "uint32_t" },
372 { "stddev", DT_IDENT_AGGFUNC, 0, DTRACEAGG_STDDEV, DT_ATTR_STABCMN,
373 DT_VERS_1_6, &dt_idops_func, "void(@)" },
374 { "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0,
375 &dt_idops_func, "void()" },
376 { "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1,
377 &dt_idops_func, "string(const char *, char)" },
378 { "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0,
379 &dt_idops_func, "size_t(const char *)" },
380 { "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0,
381 &dt_idops_func, "string(const char *, const char *)" },
382 { "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1,
383 &dt_idops_func, "string(const char *, char)" },
384 { "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1,
385 &dt_idops_func, "string(const char *, const char *)" },
386 { "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1,
387 &dt_idops_func, "string(const char *, const char *)" },
388 { "strtoll", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOLL, DT_ATTR_STABCMN, DT_VERS_1_11,
389 &dt_idops_func, "int64_t(const char *, [int])" },
390 { "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1,
391 &dt_idops_func, "string(const char *, int, [int])" },
392 { "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0,
393 &dt_idops_func, "void(@)" },
394 { "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN,
395 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" },
396 { "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0,
397 &dt_idops_func, "void(@, ...)" },
398 { "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0,
399 &dt_idops_type, "void" },
400 { "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0,
401 &dt_idops_type, "id_t" },
402 { "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP,
403 DT_ATTR_STABCMN, DT_VERS_1_0,
404 &dt_idops_type, "uint64_t" },
405 { "tolower", DT_IDENT_FUNC, 0, DIF_SUBR_TOLOWER, DT_ATTR_STABCMN, DT_VERS_1_8,
406 &dt_idops_func, "string(const char *)" },
407 { "toupper", DT_IDENT_FUNC, 0, DIF_SUBR_TOUPPER, DT_ATTR_STABCMN, DT_VERS_1_8,
408 &dt_idops_func, "string(const char *)" },
409 { "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0,
410 &dt_idops_func, "void(@)" },
411 { "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM,
412 DT_ATTR_STABCMN, DT_VERS_1_0,
413 &dt_idops_func, "void(@, size_t, ...)" },
414 { "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN,
415 DT_VERS_1_0, &dt_idops_func, "void(...)" },
416 { "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN,
417 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
418 { "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN,
419 DT_VERS_1_2, &dt_idops_type, "uint64_t" },
420 { "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN,
421 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
422 { "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0,
423 &dt_idops_type, "uid_t" },
424 { "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN,
425 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
426 { "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0,
427 &dt_idops_regs, NULL },
428 { "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0,
429 &dt_idops_func, "stack(...)" },
430 { "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH,
431 DT_ATTR_STABCMN, DT_VERS_1_2,
432 &dt_idops_type, "uint32_t" },
433 { "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN,
434 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
435 { "vmregs", DT_IDENT_ARRAY, 0, DIF_VAR_VMREGS, DT_ATTR_STABCMN, DT_VERS_1_7,
436 &dt_idops_regs, NULL },
437 { "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP,
438 DT_ATTR_STABCMN, DT_VERS_1_0,
439 &dt_idops_type, "uint64_t" },
440 { "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP,
441 DT_ATTR_STABCMN, DT_VERS_1_0,
442 &dt_idops_type, "int64_t" },
443 { "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME,
444 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
445 { NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL }
446 };
447
448 /*
449 * Tables of ILP32 intrinsic integer and floating-point type templates to use
450 * to populate the dynamic "C" CTF type container.
451 */
452 static const dt_intrinsic_t _dtrace_intrinsics_32[] = {
453 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER },
454 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
455 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER },
456 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
457 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
458 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
459 { "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
460 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
461 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
462 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
463 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
464 { "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
465 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
466 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
467 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER },
468 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER },
469 { "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER },
470 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER },
471 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER },
472 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT },
473 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT },
474 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT },
475 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT },
476 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT },
477 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT },
478 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT },
479 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT },
480 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT },
481 { NULL, { 0, 0, 0 }, 0 }
482 };
483
484 /*
485 * Tables of LP64 intrinsic integer and floating-point type templates to use
486 * to populate the dynamic "C" CTF type container.
487 */
488 static const dt_intrinsic_t _dtrace_intrinsics_64[] = {
489 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER },
490 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
491 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER },
492 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
493 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
494 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
495 { "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
496 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
497 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
498 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
499 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
500 { "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
501 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
502 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
503 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER },
504 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER },
505 { "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER },
506 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER },
507 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER },
508 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT },
509 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT },
510 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT },
511 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT },
512 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT },
513 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT },
514 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT },
515 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT },
516 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT },
517 { NULL, { 0, 0, 0 }, 0 }
518 };
519
520 /*
521 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container.
522 * These aliases ensure that D definitions can use typical <sys/types.h> names.
523 */
524 static const dt_typedef_t _dtrace_typedefs_32[] = {
525 { "char", "int8_t" },
526 { "short", "int16_t" },
527 { "int", "int32_t" },
528 { "long long", "int64_t" },
529 { "int", "intptr_t" },
530 { "int", "ssize_t" },
531 { "unsigned char", "uint8_t" },
532 { "unsigned short", "uint16_t" },
533 { "unsigned", "uint32_t" },
534 { "unsigned long long", "uint64_t" },
535 { "unsigned char", "uchar_t" },
536 { "unsigned short", "ushort_t" },
537 { "unsigned", "uint_t" },
538 { "unsigned long", "ulong_t" },
539 { "unsigned long long", "u_longlong_t" },
540 { "int", "ptrdiff_t" },
541 { "unsigned", "uintptr_t" },
542 { "unsigned", "size_t" },
543 { "long", "id_t" },
544 { "long", "pid_t" },
545 { NULL, NULL }
546 };
547
548 /*
549 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container.
550 * These aliases ensure that D definitions can use typical <sys/types.h> names.
551 */
552 static const dt_typedef_t _dtrace_typedefs_64[] = {
553 { "char", "int8_t" },
554 { "short", "int16_t" },
555 { "int", "int32_t" },
556 { "long", "int64_t" },
557 { "long", "intptr_t" },
558 { "long", "ssize_t" },
559 { "unsigned char", "uint8_t" },
560 { "unsigned short", "uint16_t" },
561 { "unsigned", "uint32_t" },
562 { "unsigned long", "uint64_t" },
563 { "unsigned char", "uchar_t" },
564 { "unsigned short", "ushort_t" },
565 { "unsigned", "uint_t" },
566 { "unsigned long", "ulong_t" },
567 { "unsigned long long", "u_longlong_t" },
568 { "long", "ptrdiff_t" },
569 { "unsigned long", "uintptr_t" },
570 { "unsigned long", "size_t" },
571 { "int", "id_t" },
572 { "int", "pid_t" },
573 { NULL, NULL }
574 };
575
576 /*
577 * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[]
578 * cache when a new dtrace client open occurs. Values are set by dtrace_open().
579 */
580 static const dt_intdesc_t _dtrace_ints_32[] = {
581 { "int", NULL, CTF_ERR, 0x7fffffffULL },
582 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL },
583 { "long", NULL, CTF_ERR, 0x7fffffffULL },
584 { "unsigned long", NULL, CTF_ERR, 0xffffffffULL },
585 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL },
586 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL }
587 };
588
589 /*
590 * Tables of LP64 integer type templates used to populate the dtp->dt_ints[]
591 * cache when a new dtrace client open occurs. Values are set by dtrace_open().
592 */
593 static const dt_intdesc_t _dtrace_ints_64[] = {
594 { "int", NULL, CTF_ERR, 0x7fffffffULL },
595 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL },
596 { "long", NULL, CTF_ERR, 0x7fffffffffffffffULL },
597 { "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL },
598 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL },
599 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL }
600 };
601
602 /*
603 * Table of macro variable templates used to populate the macro identifier hash
604 * when a new dtrace client open occurs. Values are set by dtrace_update().
605 */
606 static const dt_ident_t _dtrace_macros[] = {
607 { "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
608 { "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
609 { "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
610 { "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
611 { "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
612 { "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
613 { "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
614 { "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
615 { "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
616 { "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
617 { "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
618 { NULL, 0, 0, 0, { 0, 0, 0 }, 0 }
619 };
620
621 /*
622 * Hard-wired definition string to be compiled and cached every time a new
623 * DTrace library handle is initialized. This string should only be used to
624 * contain definitions that should be present regardless of DTRACE_O_NOLIBS.
625 */
626 static const char _dtrace_hardwire[] = "\
627 inline long NULL = 0; \n\
628 #pragma D binding \"1.0\" NULL\n\
629 ";
630
631 /*
632 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV.
633 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel.
634 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are
635 * relying on the fact that when running dtrace(1M), isaexec will invoke the
636 * binary with the same bitness as the kernel, which is what we want by default
637 * when generating our DIF. The user can override the choice using oflags.
638 */
639 static const dtrace_conf_t _dtrace_conf = {
640 DIF_VERSION, /* dtc_difversion */
641 DIF_DIR_NREGS, /* dtc_difintregs */
642 DIF_DTR_NREGS, /* dtc_diftupregs */
643 CTF_MODEL_NATIVE /* dtc_ctfmodel */
644 };
645
646 const dtrace_attribute_t _dtrace_maxattr = {
647 DTRACE_STABILITY_MAX,
648 DTRACE_STABILITY_MAX,
649 DTRACE_CLASS_MAX
650 };
651
652 const dtrace_attribute_t _dtrace_defattr = {
653 DTRACE_STABILITY_STABLE,
654 DTRACE_STABILITY_STABLE,
655 DTRACE_CLASS_COMMON
656 };
657
658 const dtrace_attribute_t _dtrace_symattr = {
659 DTRACE_STABILITY_PRIVATE,
660 DTRACE_STABILITY_PRIVATE,
661 DTRACE_CLASS_UNKNOWN
662 };
663
664 const dtrace_attribute_t _dtrace_typattr = {
665 DTRACE_STABILITY_PRIVATE,
666 DTRACE_STABILITY_PRIVATE,
667 DTRACE_CLASS_UNKNOWN
668 };
669
670 const dtrace_attribute_t _dtrace_prvattr = {
671 DTRACE_STABILITY_PRIVATE,
672 DTRACE_STABILITY_PRIVATE,
673 DTRACE_CLASS_UNKNOWN
674 };
675
676 const dtrace_pattr_t _dtrace_prvdesc = {
677 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
678 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
679 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
680 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
681 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
682 };
683
684 const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */
685 const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */
686
687 const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */
688 const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */
689
690 int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */
691 int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */
692 uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */
693 uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */
694 uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */
695 uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */
696 size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */
697 int _dtrace_argmax = 32; /* default maximum number of probe arguments */
698
699 int _dtrace_debug = 0; /* debug messages enabled (off) */
700 const char *const _dtrace_version = DT_VERS_STRING; /* API version string */
701 int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */
702
703 typedef struct dt_fdlist {
704 int *df_fds; /* array of provider driver file descriptors */
705 uint_t df_ents; /* number of valid elements in df_fds[] */
706 uint_t df_size; /* size of df_fds[] */
707 } dt_fdlist_t;
708
709 #pragma init(_dtrace_init)
710 void
711 _dtrace_init(void)
712 {
713 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL;
714
715 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) {
716 if (rd_init(_dtrace_rdvers) == RD_OK)
717 break;
718 }
719 }
720
721 static dtrace_hdl_t *
722 set_open_errno(dtrace_hdl_t *dtp, int *errp, int err)
723 {
724 if (dtp != NULL)
725 dtrace_close(dtp);
726 if (errp != NULL)
727 *errp = err;
728 return (NULL);
729 }
730
731 static void
732 dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp)
733 {
734 dt_provmod_t *prov;
735 char path[PATH_MAX];
736 struct dirent *dp, *ep;
737 DIR *dirp;
738 int fd;
739
740 if ((dirp = opendir(_dtrace_provdir)) == NULL)
741 return; /* failed to open directory; just skip it */
742
743 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1);
744 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1);
745
746 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) {
747 if (dp->d_name[0] == '.')
748 continue; /* skip "." and ".." */
749
750 if (dfp->df_ents == dfp->df_size) {
751 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16;
752 int *fds = realloc(dfp->df_fds, size * sizeof (int));
753
754 if (fds == NULL)
755 break; /* skip the rest of this directory */
756
757 dfp->df_fds = fds;
758 dfp->df_size = size;
759 }
760
761 (void) snprintf(path, sizeof (path), "%s/%s",
762 _dtrace_provdir, dp->d_name);
763
764 if ((fd = open(path, O_RDONLY)) == -1)
765 continue; /* failed to open driver; just skip it */
766
767 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) ||
768 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) {
769 free(prov);
770 (void) close(fd);
771 break;
772 }
773
774 (void) strcpy(prov->dp_name, dp->d_name);
775 prov->dp_next = *provmod;
776 *provmod = prov;
777
778 dt_dprintf("opened provider %s\n", dp->d_name);
779 dfp->df_fds[dfp->df_ents++] = fd;
780 }
781
782 (void) closedir(dirp);
783 }
784
785 static void
786 dt_provmod_destroy(dt_provmod_t **provmod)
787 {
788 dt_provmod_t *next, *current;
789
790 for (current = *provmod; current != NULL; current = next) {
791 next = current->dp_next;
792 free(current->dp_name);
793 free(current);
794 }
795
796 *provmod = NULL;
797 }
798
799 static const char *
800 dt_get_sysinfo(int cmd, char *buf, size_t len)
801 {
802 ssize_t rv = sysinfo(cmd, buf, len);
803 char *p = buf;
804
805 if (rv < 0 || rv > len)
806 (void) snprintf(buf, len, "%s", "Unknown");
807
808 while ((p = strchr(p, '.')) != NULL)
809 *p++ = '_';
810
811 return (buf);
812 }
813
814 static dtrace_hdl_t *
815 dt_vopen(int version, int flags, int *errp,
816 const dtrace_vector_t *vector, void *arg)
817 {
818 dtrace_hdl_t *dtp = NULL;
819 int dtfd = -1, ftfd = -1, fterr = 0;
820 dtrace_prog_t *pgp;
821 dt_module_t *dmp;
822 dt_provmod_t *provmod = NULL;
823 int i, err;
824 struct rlimit rl;
825
826 const dt_intrinsic_t *dinp;
827 const dt_typedef_t *dtyp;
828 const dt_ident_t *idp;
829
830 dtrace_typeinfo_t dtt;
831 ctf_funcinfo_t ctc;
832 ctf_arinfo_t ctr;
833
834 dt_fdlist_t df = { NULL, 0, 0 };
835
836 char isadef[32], utsdef[32];
837 char s1[64], s2[64];
838
839 if (version <= 0)
840 return (set_open_errno(dtp, errp, EINVAL));
841
842 if (version > DTRACE_VERSION)
843 return (set_open_errno(dtp, errp, EDT_VERSION));
844
845 if (version < DTRACE_VERSION) {
846 /*
847 * Currently, increasing the library version number is used to
848 * denote a binary incompatible change. That is, a consumer
849 * of the library cannot run on a version of the library with
850 * a higher DTRACE_VERSION number than the consumer compiled
851 * against. Once the library API has been committed to,
852 * backwards binary compatibility will be required; at that
853 * time, this check should change to return EDT_OVERSION only
854 * if the specified version number is less than the version
855 * number at the time of interface commitment.
856 */
857 return (set_open_errno(dtp, errp, EDT_OVERSION));
858 }
859
860 if (flags & ~DTRACE_O_MASK)
861 return (set_open_errno(dtp, errp, EINVAL));
862
863 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32))
864 return (set_open_errno(dtp, errp, EINVAL));
865
866 if (vector == NULL && arg != NULL)
867 return (set_open_errno(dtp, errp, EINVAL));
868
869 if (elf_version(EV_CURRENT) == EV_NONE)
870 return (set_open_errno(dtp, errp, EDT_ELFVERSION));
871
872 if (vector != NULL || (flags & DTRACE_O_NODEV))
873 goto alloc; /* do not attempt to open dtrace device */
874
875 /*
876 * Before we get going, crank our limit on file descriptors up to the
877 * hard limit. This is to allow for the fact that libproc keeps file
878 * descriptors to objects open for the lifetime of the proc handle;
879 * without raising our hard limit, we would have an acceptably small
880 * bound on the number of processes that we could concurrently
881 * instrument with the pid provider.
882 */
883 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) {
884 rl.rlim_cur = rl.rlim_max;
885 (void) setrlimit(RLIMIT_NOFILE, &rl);
886 }
887
888 /*
889 * Get the device path of each of the providers. We hold them open
890 * in the df.df_fds list until we open the DTrace driver itself,
891 * allowing us to see all of the probes provided on this system. Once
892 * we have the DTrace driver open, we can safely close all the providers
893 * now that they have registered with the framework.
894 */
895 dt_provmod_open(&provmod, &df);
896
897 dtfd = open("/dev/dtrace/dtrace", O_RDWR);
898 err = errno; /* save errno from opening dtfd */
899
900 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR);
901 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */
902
903 while (df.df_ents-- != 0)
904 (void) close(df.df_fds[df.df_ents]);
905
906 free(df.df_fds);
907
908 /*
909 * If we failed to open the dtrace device, fail dtrace_open().
910 * We convert some kernel errnos to custom libdtrace errnos to
911 * improve the resulting message from the usual strerror().
912 */
913 if (dtfd == -1) {
914 dt_provmod_destroy(&provmod);
915 switch (err) {
916 case ENOENT:
917 err = EDT_NOENT;
918 break;
919 case EBUSY:
920 err = EDT_BUSY;
921 break;
922 case EACCES:
923 err = EDT_ACCESS;
924 break;
925 }
926 return (set_open_errno(dtp, errp, err));
927 }
928
929 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC);
930 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC);
931
932 alloc:
933 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL)
934 return (set_open_errno(dtp, errp, EDT_NOMEM));
935
936 bzero(dtp, sizeof (dtrace_hdl_t));
937 dtp->dt_oflags = flags;
938 dtp->dt_prcmode = DT_PROC_STOP_PREINIT;
939 dtp->dt_linkmode = DT_LINK_KERNEL;
940 dtp->dt_linktype = DT_LTYP_ELF;
941 dtp->dt_xlatemode = DT_XL_STATIC;
942 dtp->dt_stdcmode = DT_STDC_XA;
943 dtp->dt_version = version;
944 dtp->dt_fd = dtfd;
945 dtp->dt_ftfd = ftfd;
946 dtp->dt_fterr = fterr;
947 dtp->dt_cdefs_fd = -1;
948 dtp->dt_ddefs_fd = -1;
949 dtp->dt_stdout_fd = -1;
950 dtp->dt_modbuckets = _dtrace_strbuckets;
951 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *));
952 dtp->dt_provbuckets = _dtrace_strbuckets;
953 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *));
954 dt_proc_init(dtp);
955 dtp->dt_vmax = DT_VERS_LATEST;
956 dtp->dt_cpp_path = strdup(_dtrace_defcpp);
957 dtp->dt_cpp_argv = malloc(sizeof (char *));
958 dtp->dt_cpp_argc = 1;
959 dtp->dt_cpp_args = 1;
960 dtp->dt_ld_path = strdup(_dtrace_defld);
961 dtp->dt_provmod = provmod;
962 dtp->dt_vector = vector;
963 dtp->dt_varg = arg;
964 dt_dof_init(dtp);
965 (void) uname(&dtp->dt_uts);
966
967 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL ||
968 dtp->dt_procs == NULL || dtp->dt_proc_env == NULL ||
969 dtp->dt_ld_path == NULL || dtp->dt_cpp_path == NULL ||
970 dtp->dt_cpp_argv == NULL)
971 return (set_open_errno(dtp, errp, EDT_NOMEM));
972
973 for (i = 0; i < DTRACEOPT_MAX; i++)
974 dtp->dt_options[i] = DTRACEOPT_UNSET;
975
976 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path);
977
978 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u",
979 (uint_t)(sizeof (void *) * NBBY));
980
981 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s",
982 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)),
983 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2)));
984
985 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL ||
986 dt_cpp_add_arg(dtp, "-D__unix") == NULL ||
987 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL ||
988 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL ||
989 dt_cpp_add_arg(dtp, isadef) == NULL ||
990 dt_cpp_add_arg(dtp, utsdef) == NULL)
991 return (set_open_errno(dtp, errp, EDT_NOMEM));
992
993 if (flags & DTRACE_O_NODEV)
994 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf));
995 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0)
996 return (set_open_errno(dtp, errp, errno));
997
998 if (flags & DTRACE_O_LP64)
999 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64;
1000 else if (flags & DTRACE_O_ILP32)
1001 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32;
1002
1003 #ifdef __sparc
1004 /*
1005 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h>
1006 * and __sparcv9 is defined if we are doing a 64-bit compile.
1007 */
1008 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL)
1009 return (set_open_errno(dtp, errp, EDT_NOMEM));
1010
1011 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 &&
1012 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL)
1013 return (set_open_errno(dtp, errp, EDT_NOMEM));
1014 #endif
1015
1016 #ifdef __x86
1017 /*
1018 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit
1019 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC,
1020 * they are defined exclusive of one another (see PSARC 2004/619).
1021 */
1022 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) {
1023 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL)
1024 return (set_open_errno(dtp, errp, EDT_NOMEM));
1025 } else {
1026 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL)
1027 return (set_open_errno(dtp, errp, EDT_NOMEM));
1028 }
1029 #endif
1030
1031 if (dtp->dt_conf.dtc_difversion < DIF_VERSION)
1032 return (set_open_errno(dtp, errp, EDT_DIFVERS));
1033
1034 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32)
1035 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32));
1036 else
1037 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64));
1038
1039 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX);
1040 dtp->dt_aggs = dt_idhash_create("aggregation", NULL,
1041 DTRACE_AGGVARIDNONE + 1, UINT_MAX);
1042
1043 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals,
1044 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX);
1045
1046 dtp->dt_tls = dt_idhash_create("thread local", NULL,
1047 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX);
1048
1049 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL ||
1050 dtp->dt_globals == NULL || dtp->dt_tls == NULL)
1051 return (set_open_errno(dtp, errp, EDT_NOMEM));
1052
1053 /*
1054 * Populate the dt_macros identifier hash table by hand: we can't use
1055 * the dt_idhash_populate() mechanism because we're not yet compiling
1056 * and dtrace_update() needs to immediately reference these idents.
1057 */
1058 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) {
1059 if (dt_idhash_insert(dtp->dt_macros, idp->di_name,
1060 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr,
1061 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw,
1062 idp->di_iarg, 0) == NULL)
1063 return (set_open_errno(dtp, errp, EDT_NOMEM));
1064 }
1065
1066 /*
1067 * Update the module list using /system/object and load the values for
1068 * the macro variable definitions according to the current process.
1069 */
1070 dtrace_update(dtp);
1071
1072 /*
1073 * Select the intrinsics and typedefs we want based on the data model.
1074 * The intrinsics are under "C". The typedefs are added under "D".
1075 */
1076 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) {
1077 dinp = _dtrace_intrinsics_32;
1078 dtyp = _dtrace_typedefs_32;
1079 } else {
1080 dinp = _dtrace_intrinsics_64;
1081 dtyp = _dtrace_typedefs_64;
1082 }
1083
1084 /*
1085 * Create a dynamic CTF container under the "C" scope for intrinsic
1086 * types and types defined in ANSI-C header files that are included.
1087 */
1088 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL)
1089 return (set_open_errno(dtp, errp, EDT_NOMEM));
1090
1091 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL)
1092 return (set_open_errno(dtp, errp, EDT_CTF));
1093
1094 dt_dprintf("created CTF container for %s (%p)\n",
1095 dmp->dm_name, (void *)dmp->dm_ctfp);
1096
1097 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel);
1098 ctf_setspecific(dmp->dm_ctfp, dmp);
1099
1100 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */
1101 dmp->dm_modid = -1; /* no module ID */
1102
1103 /*
1104 * Fill the dynamic "C" CTF container with all of the intrinsic
1105 * integer and floating-point types appropriate for this data model.
1106 */
1107 for (; dinp->din_name != NULL; dinp++) {
1108 if (dinp->din_kind == CTF_K_INTEGER) {
1109 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT,
1110 dinp->din_name, &dinp->din_data);
1111 } else {
1112 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT,
1113 dinp->din_name, &dinp->din_data);
1114 }
1115
1116 if (err == CTF_ERR) {
1117 dt_dprintf("failed to add %s to C container: %s\n",
1118 dinp->din_name, ctf_errmsg(
1119 ctf_errno(dmp->dm_ctfp)));
1120 return (set_open_errno(dtp, errp, EDT_CTF));
1121 }
1122 }
1123
1124 if (ctf_update(dmp->dm_ctfp) != 0) {
1125 dt_dprintf("failed to update C container: %s\n",
1126 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1127 return (set_open_errno(dtp, errp, EDT_CTF));
1128 }
1129
1130 /*
1131 * Add intrinsic pointer types that are needed to initialize printf
1132 * format dictionary types (see table in dt_printf.c).
1133 */
1134 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT,
1135 ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1136
1137 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT,
1138 ctf_lookup_by_name(dmp->dm_ctfp, "char"));
1139
1140 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT,
1141 ctf_lookup_by_name(dmp->dm_ctfp, "int"));
1142
1143 if (ctf_update(dmp->dm_ctfp) != 0) {
1144 dt_dprintf("failed to update C container: %s\n",
1145 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1146 return (set_open_errno(dtp, errp, EDT_CTF));
1147 }
1148
1149 /*
1150 * Create a dynamic CTF container under the "D" scope for types that
1151 * are defined by the D program itself or on-the-fly by the D compiler.
1152 * The "D" CTF container is a child of the "C" CTF container.
1153 */
1154 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL)
1155 return (set_open_errno(dtp, errp, EDT_NOMEM));
1156
1157 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL)
1158 return (set_open_errno(dtp, errp, EDT_CTF));
1159
1160 dt_dprintf("created CTF container for %s (%p)\n",
1161 dmp->dm_name, (void *)dmp->dm_ctfp);
1162
1163 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel);
1164 ctf_setspecific(dmp->dm_ctfp, dmp);
1165
1166 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */
1167 dmp->dm_modid = -1; /* no module ID */
1168
1169 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) {
1170 dt_dprintf("failed to import D parent container: %s\n",
1171 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1172 return (set_open_errno(dtp, errp, EDT_CTF));
1173 }
1174
1175 /*
1176 * Fill the dynamic "D" CTF container with all of the built-in typedefs
1177 * that we need to use for our D variable and function definitions.
1178 * This ensures that basic inttypes.h names are always available to us.
1179 */
1180 for (; dtyp->dty_src != NULL; dtyp++) {
1181 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1182 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp,
1183 dtyp->dty_src)) == CTF_ERR) {
1184 dt_dprintf("failed to add typedef %s %s to D "
1185 "container: %s", dtyp->dty_src, dtyp->dty_dst,
1186 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1187 return (set_open_errno(dtp, errp, EDT_CTF));
1188 }
1189 }
1190
1191 /*
1192 * Insert a CTF ID corresponding to a pointer to a type of kind
1193 * CTF_K_FUNCTION we can use in the compiler for function pointers.
1194 * CTF treats all function pointers as "int (*)()" so we only need one.
1195 */
1196 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int");
1197 ctc.ctc_argc = 0;
1198 ctc.ctc_flags = 0;
1199
1200 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp,
1201 CTF_ADD_ROOT, &ctc, NULL);
1202
1203 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp,
1204 CTF_ADD_ROOT, dtp->dt_type_func);
1205
1206 /*
1207 * We also insert CTF definitions for the special D intrinsic types
1208 * string and <DYN> into the D container. The string type is added
1209 * as a typedef of char[n]. The <DYN> type is an alias for void.
1210 * We compare types to these special CTF ids throughout the compiler.
1211 */
1212 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char");
1213 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long");
1214 ctr.ctr_nelems = _dtrace_strsize;
1215
1216 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1217 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr));
1218
1219 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1220 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1221
1222 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1223 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1224
1225 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1226 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1227
1228 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1229 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1230
1231 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR ||
1232 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR ||
1233 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR ||
1234 dtp->dt_type_usymaddr == CTF_ERR) {
1235 dt_dprintf("failed to add intrinsic to D container: %s\n",
1236 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1237 return (set_open_errno(dtp, errp, EDT_CTF));
1238 }
1239
1240 if (ctf_update(dmp->dm_ctfp) != 0) {
1241 dt_dprintf("failed update D container: %s\n",
1242 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1243 return (set_open_errno(dtp, errp, EDT_CTF));
1244 }
1245
1246 /*
1247 * Initialize the integer description table used to convert integer
1248 * constants to the appropriate types. Refer to the comments above
1249 * dt_node_int() for a complete description of how this table is used.
1250 */
1251 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) {
1252 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY,
1253 dtp->dt_ints[i].did_name, &dtt) != 0) {
1254 dt_dprintf("failed to lookup integer type %s: %s\n",
1255 dtp->dt_ints[i].did_name,
1256 dtrace_errmsg(dtp, dtrace_errno(dtp)));
1257 return (set_open_errno(dtp, errp, dtp->dt_errno));
1258 }
1259 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp;
1260 dtp->dt_ints[i].did_type = dtt.dtt_type;
1261 }
1262
1263 /*
1264 * Now that we've created the "C" and "D" containers, move them to the
1265 * start of the module list so that these types and symbols are found
1266 * first (for stability) when iterating through the module list.
1267 */
1268 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs);
1269 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs);
1270
1271 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs);
1272 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs);
1273
1274 if (dt_pfdict_create(dtp) == -1)
1275 return (set_open_errno(dtp, errp, dtp->dt_errno));
1276
1277 /*
1278 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default
1279 * because without /dev/dtrace open, we will not be able to load the
1280 * names and attributes of any providers or probes from the kernel.
1281 */
1282 if (flags & DTRACE_O_NODEV)
1283 dtp->dt_cflags |= DTRACE_C_ZDEFS;
1284
1285 /*
1286 * Load hard-wired inlines into the definition cache by calling the
1287 * compiler on the raw definition string defined above.
1288 */
1289 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire,
1290 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) {
1291 dt_dprintf("failed to load hard-wired definitions: %s\n",
1292 dtrace_errmsg(dtp, dtrace_errno(dtp)));
1293 return (set_open_errno(dtp, errp, EDT_HARDWIRE));
1294 }
1295
1296 dt_program_destroy(dtp, pgp);
1297
1298 /*
1299 * Set up the default DTrace library path. Once set, the next call to
1300 * dt_compile() will compile all the libraries. We intentionally defer
1301 * library processing to improve overhead for clients that don't ever
1302 * compile, and to provide better error reporting (because the full
1303 * reporting of compiler errors requires dtrace_open() to succeed).
1304 */
1305 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0)
1306 return (set_open_errno(dtp, errp, dtp->dt_errno));
1307
1308 return (dtp);
1309 }
1310
1311 dtrace_hdl_t *
1312 dtrace_open(int version, int flags, int *errp)
1313 {
1314 return (dt_vopen(version, flags, errp, NULL, NULL));
1315 }
1316
1317 dtrace_hdl_t *
1318 dtrace_vopen(int version, int flags, int *errp,
1319 const dtrace_vector_t *vector, void *arg)
1320 {
1321 return (dt_vopen(version, flags, errp, vector, arg));
1322 }
1323
1324 void
1325 dtrace_close(dtrace_hdl_t *dtp)
1326 {
1327 dt_ident_t *idp, *ndp;
1328 dt_module_t *dmp;
1329 dt_provider_t *pvp;
1330 dtrace_prog_t *pgp;
1331 dt_xlator_t *dxp;
1332 dt_dirpath_t *dirp;
1333 int i;
1334
1335 if (dtp->dt_procs != NULL)
1336 dt_proc_fini(dtp);
1337
1338 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL)
1339 dt_program_destroy(dtp, pgp);
1340
1341 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL)
1342 dt_xlator_destroy(dtp, dxp);
1343
1344 dt_free(dtp, dtp->dt_xlatormap);
1345
1346 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) {
1347 ndp = idp->di_next;
1348 dt_ident_destroy(idp);
1349 }
1350
1351 if (dtp->dt_macros != NULL)
1352 dt_idhash_destroy(dtp->dt_macros);
1353 if (dtp->dt_aggs != NULL)
1354 dt_idhash_destroy(dtp->dt_aggs);
1355 if (dtp->dt_globals != NULL)
1356 dt_idhash_destroy(dtp->dt_globals);
1357 if (dtp->dt_tls != NULL)
1358 dt_idhash_destroy(dtp->dt_tls);
1359
1360 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL)
1361 dt_module_destroy(dtp, dmp);
1362
1363 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL)
1364 dt_provider_destroy(dtp, pvp);
1365
1366 if (dtp->dt_fd != -1)
1367 (void) close(dtp->dt_fd);
1368 if (dtp->dt_ftfd != -1)
1369 (void) close(dtp->dt_ftfd);
1370 if (dtp->dt_cdefs_fd != -1)
1371 (void) close(dtp->dt_cdefs_fd);
1372 if (dtp->dt_ddefs_fd != -1)
1373 (void) close(dtp->dt_ddefs_fd);
1374 if (dtp->dt_stdout_fd != -1)
1375 (void) close(dtp->dt_stdout_fd);
1376
1377 dt_epid_destroy(dtp);
1378 dt_aggid_destroy(dtp);
1379 dt_format_destroy(dtp);
1380 dt_strdata_destroy(dtp);
1381 dt_buffered_destroy(dtp);
1382 dt_aggregate_destroy(dtp);
1383 dt_pfdict_destroy(dtp);
1384 dt_provmod_destroy(&dtp->dt_provmod);
1385 dt_dof_fini(dtp);
1386
1387 for (i = 1; i < dtp->dt_cpp_argc; i++)
1388 free(dtp->dt_cpp_argv[i]);
1389
1390 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) {
1391 dt_list_delete(&dtp->dt_lib_path, dirp);
1392 free(dirp->dir_path);
1393 free(dirp);
1394 }
1395
1396 free(dtp->dt_cpp_argv);
1397 free(dtp->dt_cpp_path);
1398 free(dtp->dt_ld_path);
1399
1400 free(dtp->dt_mods);
1401 free(dtp->dt_provs);
1402 free(dtp);
1403 }
1404
1405 int
1406 dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods)
1407 {
1408 dt_provmod_t *prov;
1409 int i = 0;
1410
1411 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) {
1412 if (i < nmods)
1413 mods[i] = prov->dp_name;
1414 }
1415
1416 return (i);
1417 }
1418
1419 int
1420 dtrace_ctlfd(dtrace_hdl_t *dtp)
1421 {
1422 return (dtp->dt_fd);
1423 }