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) 2011, Joyent, Inc. All rights reserved.
25 * Copyright (c) 2011 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 Solaris. 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_LATEST DT_VERS_1_9
114 #define DT_VERS_STRING "Sun D 1.9"
115
116 const dt_version_t _dtrace_versions[] = {
117 DT_VERS_1_0, /* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */
118 DT_VERS_1_1, /* D API 1.1.0 Solaris Express 6/05 */
119 DT_VERS_1_2, /* D API 1.2.0 Solaris 10 Update 1 */
120 DT_VERS_1_2_1, /* D API 1.2.1 Solaris Express 4/06 */
121 DT_VERS_1_2_2, /* D API 1.2.2 Solaris Express 6/06 */
122 DT_VERS_1_3, /* D API 1.3 Solaris Express 10/06 */
123 DT_VERS_1_4, /* D API 1.4 Solaris Express 2/07 */
124 DT_VERS_1_4_1, /* D API 1.4.1 Solaris Express 4/07 */
125 DT_VERS_1_5, /* D API 1.5 Solaris Express 7/07 */
126 DT_VERS_1_6, /* D API 1.6 */
127 DT_VERS_1_6_1, /* D API 1.6.1 */
128 DT_VERS_1_6_2, /* D API 1.6.2 */
129 DT_VERS_1_6_3, /* D API 1.6.3 */
130 DT_VERS_1_7, /* D API 1.7 */
131 DT_VERS_1_7_1, /* D API 1.7.1 */
132 DT_VERS_1_8, /* D API 1.8 */
133 DT_VERS_1_8_1, /* D API 1.8.1 */
134 DT_VERS_1_9, /* D API 1.9 */
135 0
136 };
137
138 /*
139 * Table of global identifiers. This is used to populate the global identifier
140 * hash when a new dtrace client open occurs. For more info see dt_ident.h.
141 * The global identifiers that represent functions use the dt_idops_func ops
142 * and specify the private data pointer as a prototype string which is parsed
143 * when the identifier is first encountered. These prototypes look like ANSI
144 * C function prototypes except that the special symbol "@" can be used as a
145 * wildcard to represent a single parameter of any type (i.e. any dt_node_t).
146 * The standard "..." notation can also be used to represent varargs. An empty
147 * parameter list is taken to mean void (that is, no arguments are permitted).
148 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional
149 * argument.
150 */
151 static const dt_ident_t _dtrace_globals[] = {
152 { "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0,
153 &dt_idops_func, "void *(size_t)" },
154 { "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0,
155 &dt_idops_type, "int64_t" },
156 { "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0,
157 &dt_idops_type, "int64_t" },
158 { "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0,
159 &dt_idops_type, "int64_t" },
160 { "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0,
161 &dt_idops_type, "int64_t" },
162 { "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0,
163 &dt_idops_type, "int64_t" },
164 { "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0,
165 &dt_idops_type, "int64_t" },
166 { "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0,
167 &dt_idops_type, "int64_t" },
168 { "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0,
169 &dt_idops_type, "int64_t" },
170 { "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0,
171 &dt_idops_type, "int64_t" },
172 { "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0,
173 &dt_idops_type, "int64_t" },
174 { "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0,
175 &dt_idops_args, NULL },
176 { "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0,
177 &dt_idops_func, "void(@)" },
178 { "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0,
179 &dt_idops_func, "string(const char *)" },
180 { "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0,
181 &dt_idops_func, "void(void *, void *, size_t)" },
182 { "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT,
183 DT_ATTR_STABCMN, DT_VERS_1_0,
184 &dt_idops_func, "void()" },
185 { "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0,
186 &dt_idops_type, "uintptr_t" },
187 { "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0,
188 &dt_idops_func, "void(int)" },
189 { "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN,
190 DT_VERS_1_0, &dt_idops_func, "string(const char *)" },
191 { "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0,
192 &dt_idops_func, "void(...)" },
193 { "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0,
194 &dt_idops_func, "void(int)" },
195 { "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0,
196 &dt_idops_func, "void *(uintptr_t, size_t)" },
197 { "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR,
198 DT_ATTR_STABCMN, DT_VERS_1_0,
199 &dt_idops_func, "string(uintptr_t, [size_t])" },
200 { "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN,
201 DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" },
202 { "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0,
203 &dt_idops_func, "void(void *, uintptr_t, size_t)" },
204 { "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR,
205 DT_ATTR_STABCMN, DT_VERS_1_0,
206 &dt_idops_func, "void(char *, uintptr_t, size_t)" },
207 { "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0,
208 &dt_idops_func, "void()" },
209 { "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD,
210 { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE,
211 DTRACE_CLASS_COMMON }, DT_VERS_1_0,
212 &dt_idops_type, "genunix`kthread_t *" },
213 { "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME,
214 DT_ATTR_EVOLCMN, DT_VERS_1_0,
215 &dt_idops_func, "string(void *, int64_t)" },
216 { "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN,
217 DT_VERS_1_0, &dt_idops_func, "void(...)" },
218 { "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0,
219 &dt_idops_func, "string(const char *)" },
220 { "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0,
221 &dt_idops_func, "void(int)" },
222 { "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0,
223 &dt_idops_type, "uint_t" },
224 { "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0,
225 &dt_idops_type, "int" },
226 { "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME,
227 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
228 { "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0,
229 &dt_idops_func, "void(int)" },
230 { "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN,
231 DT_VERS_1_1, &dt_idops_func, "void(@, ...)" },
232 { "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN,
233 DT_VERS_1_0, &dt_idops_func, "void()" },
234 { "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN,
235 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" },
236 { "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR,
237 DT_ATTR_EVOLCMN, DT_VERS_1_0,
238 &dt_idops_func, "genunix`major_t(genunix`dev_t)" },
239 { "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR,
240 DT_ATTR_EVOLCMN, DT_VERS_1_0,
241 &dt_idops_func, "genunix`minor_t(genunix`dev_t)" },
242 { "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
243 &dt_idops_func, "uint32_t(uint32_t)" },
244 { "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
245 &dt_idops_func, "uint64_t(uint64_t)" },
246 { "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3,
247 &dt_idops_func, "uint16_t(uint16_t)" },
248 { "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0,
249 &dt_idops_type, "gid_t" },
250 { "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0,
251 &dt_idops_type, "uint_t" },
252 { "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1,
253 &dt_idops_func, "int(const char *, const char *, [int])" },
254 { "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN,
255 DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" },
256 { "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN,
257 DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" },
258 { "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN,
259 DT_VERS_1_5, &dt_idops_func, "string(int, void *)" },
260 { "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0,
261 &dt_idops_type, "uint_t" },
262 { "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0,
263 &dt_idops_func, "stack(...)" },
264 { "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0,
265 &dt_idops_func, "string(int64_t, [int])" },
266 { "llquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LLQUANTIZE, DT_ATTR_STABCMN,
267 DT_VERS_1_7, &dt_idops_func,
268 "void(@, int32_t, int32_t, int32_t, int32_t, ...)" },
269 { "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE,
270 DT_ATTR_STABCMN, DT_VERS_1_0,
271 &dt_idops_func, "void(@, int32_t, int32_t, ...)" },
272 { "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0,
273 &dt_idops_func, "void(@)" },
274 { "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0,
275 &dt_idops_func, "void(@)" },
276 { "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN,
277 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" },
278 { "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE,
279 DT_ATTR_STABCMN, DT_VERS_1_0,
280 &dt_idops_func, "size_t(mblk_t *)" },
281 { "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE,
282 DT_ATTR_STABCMN, DT_VERS_1_0,
283 &dt_idops_func, "size_t(mblk_t *)" },
284 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED,
285 DT_ATTR_EVOLCMN, DT_VERS_1_0,
286 &dt_idops_func, "int(genunix`kmutex_t *)" },
287 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER,
288 DT_ATTR_EVOLCMN, DT_VERS_1_0,
289 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" },
290 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE,
291 DT_ATTR_EVOLCMN, DT_VERS_1_0,
292 &dt_idops_func, "int(genunix`kmutex_t *)" },
293 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN,
294 DT_ATTR_EVOLCMN, DT_VERS_1_0,
295 &dt_idops_func, "int(genunix`kmutex_t *)" },
296 { "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
297 &dt_idops_func, "uint32_t(uint32_t)" },
298 { "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
299 &dt_idops_func, "uint64_t(uint64_t)" },
300 { "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3,
301 &dt_idops_func, "uint16_t(uint16_t)" },
302 { "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN,
303 DT_VERS_1_0, &dt_idops_func, "void(...)" },
304 { "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0,
305 &dt_idops_func, "void()" },
306 { "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0,
307 &dt_idops_type, "pid_t" },
308 { "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0,
309 &dt_idops_type, "pid_t" },
310 { "print", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINT, DT_ATTR_STABCMN, DT_VERS_1_9,
311 &dt_idops_func, "void(@)" },
312 { "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0,
313 &dt_idops_func, "void(@, ...)" },
314 { "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0,
315 &dt_idops_func, "void(@, ...)" },
316 { "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC,
317 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
318 { "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD,
319 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
320 { "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME,
321 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
322 { "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV,
323 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
324 { "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF,
325 DT_ATTR_STABCMN, DT_VERS_1_0,
326 &dt_idops_func, "int(pid_t)" },
327 { "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE,
328 DT_ATTR_STABCMN, DT_VERS_1_0,
329 &dt_idops_func, "void(@, ...)" },
330 { "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0,
331 &dt_idops_func, "void(int)" },
332 { "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0,
333 &dt_idops_func, "int()" },
334 { "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1,
335 &dt_idops_func, "int(const char *, const char *, [int])" },
336 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER,
337 DT_ATTR_EVOLCMN, DT_VERS_1_0,
338 &dt_idops_func, "int(genunix`krwlock_t *)" },
339 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD,
340 DT_ATTR_EVOLCMN, DT_VERS_1_0,
341 &dt_idops_func, "int(genunix`krwlock_t *)" },
342 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD,
343 DT_ATTR_EVOLCMN, DT_VERS_1_0,
344 &dt_idops_func, "int(genunix`krwlock_t *)" },
345 { "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0,
346 &dt_idops_type, "void" },
347 { "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN,
348 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" },
349 { "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE,
350 DT_ATTR_STABCMN, DT_VERS_1_0,
351 &dt_idops_func, "void(int)" },
352 { "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION,
353 DT_ATTR_STABCMN, DT_VERS_1_0,
354 &dt_idops_func, "int()" },
355 { "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0,
356 &dt_idops_func, "stack(...)" },
357 { "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH,
358 DT_ATTR_STABCMN, DT_VERS_1_0,
359 &dt_idops_type, "uint32_t" },
360 { "stddev", DT_IDENT_AGGFUNC, 0, DTRACEAGG_STDDEV, DT_ATTR_STABCMN,
361 DT_VERS_1_6, &dt_idops_func, "void(@)" },
362 { "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0,
363 &dt_idops_func, "void()" },
364 { "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1,
365 &dt_idops_func, "string(const char *, char)" },
366 { "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0,
367 &dt_idops_func, "size_t(const char *)" },
368 { "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0,
369 &dt_idops_func, "string(const char *, const char *)" },
370 { "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1,
371 &dt_idops_func, "string(const char *, char)" },
372 { "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1,
373 &dt_idops_func, "string(const char *, const char *)" },
374 { "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1,
375 &dt_idops_func, "string(const char *, const char *)" },
376 { "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1,
377 &dt_idops_func, "string(const char *, int, [int])" },
378 { "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0,
379 &dt_idops_func, "void(@)" },
380 { "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN,
381 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" },
382 { "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0,
383 &dt_idops_func, "void(@, ...)" },
384 { "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0,
385 &dt_idops_type, "void" },
386 { "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0,
387 &dt_idops_type, "id_t" },
388 { "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP,
389 DT_ATTR_STABCMN, DT_VERS_1_0,
390 &dt_idops_type, "uint64_t" },
391 { "tolower", DT_IDENT_FUNC, 0, DIF_SUBR_TOLOWER, DT_ATTR_STABCMN, DT_VERS_1_8,
392 &dt_idops_func, "string(const char *)" },
393 { "toupper", DT_IDENT_FUNC, 0, DIF_SUBR_TOUPPER, DT_ATTR_STABCMN, DT_VERS_1_8,
394 &dt_idops_func, "string(const char *)" },
395 { "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0,
396 &dt_idops_func, "void(@)" },
397 { "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM,
398 DT_ATTR_STABCMN, DT_VERS_1_0,
399 &dt_idops_func, "void(@, size_t, ...)" },
400 { "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN,
401 DT_VERS_1_0, &dt_idops_func, "void(...)" },
402 { "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN,
403 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
404 { "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN,
405 DT_VERS_1_2, &dt_idops_type, "uint64_t" },
406 { "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN,
407 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
408 { "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0,
409 &dt_idops_type, "uid_t" },
410 { "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN,
411 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
412 { "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0,
413 &dt_idops_regs, NULL },
414 { "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0,
415 &dt_idops_func, "stack(...)" },
416 { "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH,
417 DT_ATTR_STABCMN, DT_VERS_1_2,
418 &dt_idops_type, "uint32_t" },
419 { "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN,
420 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
421 { "vmregs", DT_IDENT_ARRAY, 0, DIF_VAR_VMREGS, DT_ATTR_STABCMN, DT_VERS_1_7,
422 &dt_idops_regs, NULL },
423 { "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP,
424 DT_ATTR_STABCMN, DT_VERS_1_0,
425 &dt_idops_type, "uint64_t" },
426 { "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP,
427 DT_ATTR_STABCMN, DT_VERS_1_0,
428 &dt_idops_type, "int64_t" },
429 { "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME,
430 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
431 { NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL }
432 };
433
434 /*
435 * Tables of ILP32 intrinsic integer and floating-point type templates to use
436 * to populate the dynamic "C" CTF type container.
437 */
438 static const dt_intrinsic_t _dtrace_intrinsics_32[] = {
439 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER },
440 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
441 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER },
442 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
443 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
444 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
445 { "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
446 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
447 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
448 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
449 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
450 { "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
451 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
452 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
453 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER },
454 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER },
455 { "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER },
456 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER },
457 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER },
458 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT },
459 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT },
460 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT },
461 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT },
462 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT },
463 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT },
464 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT },
465 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT },
466 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT },
467 { NULL, { 0, 0, 0 }, 0 }
468 };
469
470 /*
471 * Tables of LP64 intrinsic integer and floating-point type templates to use
472 * to populate the dynamic "C" CTF type container.
473 */
474 static const dt_intrinsic_t _dtrace_intrinsics_64[] = {
475 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER },
476 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
477 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER },
478 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
479 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
480 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
481 { "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
482 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
483 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
484 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
485 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
486 { "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
487 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
488 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
489 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER },
490 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER },
491 { "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER },
492 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER },
493 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER },
494 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT },
495 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT },
496 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT },
497 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT },
498 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT },
499 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT },
500 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT },
501 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT },
502 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT },
503 { NULL, { 0, 0, 0 }, 0 }
504 };
505
506 /*
507 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container.
508 * These aliases ensure that D definitions can use typical <sys/types.h> names.
509 */
510 static const dt_typedef_t _dtrace_typedefs_32[] = {
511 { "char", "int8_t" },
512 { "short", "int16_t" },
513 { "int", "int32_t" },
514 { "long long", "int64_t" },
515 { "int", "intptr_t" },
516 { "int", "ssize_t" },
517 { "unsigned char", "uint8_t" },
518 { "unsigned short", "uint16_t" },
519 { "unsigned", "uint32_t" },
520 { "unsigned long long", "uint64_t" },
521 { "unsigned char", "uchar_t" },
522 { "unsigned short", "ushort_t" },
523 { "unsigned", "uint_t" },
524 { "unsigned long", "ulong_t" },
525 { "unsigned long long", "u_longlong_t" },
526 { "int", "ptrdiff_t" },
527 { "unsigned", "uintptr_t" },
528 { "unsigned", "size_t" },
529 { "long", "id_t" },
530 { "long", "pid_t" },
531 { NULL, NULL }
532 };
533
534 /*
535 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container.
536 * These aliases ensure that D definitions can use typical <sys/types.h> names.
537 */
538 static const dt_typedef_t _dtrace_typedefs_64[] = {
539 { "char", "int8_t" },
540 { "short", "int16_t" },
541 { "int", "int32_t" },
542 { "long", "int64_t" },
543 { "long", "intptr_t" },
544 { "long", "ssize_t" },
545 { "unsigned char", "uint8_t" },
546 { "unsigned short", "uint16_t" },
547 { "unsigned", "uint32_t" },
548 { "unsigned long", "uint64_t" },
549 { "unsigned char", "uchar_t" },
550 { "unsigned short", "ushort_t" },
551 { "unsigned", "uint_t" },
552 { "unsigned long", "ulong_t" },
553 { "unsigned long long", "u_longlong_t" },
554 { "long", "ptrdiff_t" },
555 { "unsigned long", "uintptr_t" },
556 { "unsigned long", "size_t" },
557 { "int", "id_t" },
558 { "int", "pid_t" },
559 { NULL, NULL }
560 };
561
562 /*
563 * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[]
564 * cache when a new dtrace client open occurs. Values are set by dtrace_open().
565 */
566 static const dt_intdesc_t _dtrace_ints_32[] = {
567 { "int", NULL, CTF_ERR, 0x7fffffffULL },
568 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL },
569 { "long", NULL, CTF_ERR, 0x7fffffffULL },
570 { "unsigned long", NULL, CTF_ERR, 0xffffffffULL },
571 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL },
572 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL }
573 };
574
575 /*
576 * Tables of LP64 integer type templates used to populate the dtp->dt_ints[]
577 * cache when a new dtrace client open occurs. Values are set by dtrace_open().
578 */
579 static const dt_intdesc_t _dtrace_ints_64[] = {
580 { "int", NULL, CTF_ERR, 0x7fffffffULL },
581 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL },
582 { "long", NULL, CTF_ERR, 0x7fffffffffffffffULL },
583 { "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL },
584 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL },
585 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL }
586 };
587
588 /*
589 * Table of macro variable templates used to populate the macro identifier hash
590 * when a new dtrace client open occurs. Values are set by dtrace_update().
591 */
592 static const dt_ident_t _dtrace_macros[] = {
593 { "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
594 { "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
595 { "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
596 { "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
597 { "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
598 { "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
599 { "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
600 { "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
601 { "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
602 { "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
603 { "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
604 { NULL, 0, 0, 0, { 0, 0, 0 }, 0 }
605 };
606
607 /*
608 * Hard-wired definition string to be compiled and cached every time a new
609 * DTrace library handle is initialized. This string should only be used to
610 * contain definitions that should be present regardless of DTRACE_O_NOLIBS.
611 */
612 static const char _dtrace_hardwire[] = "\
613 inline long NULL = 0; \n\
614 #pragma D binding \"1.0\" NULL\n\
615 ";
616
617 /*
618 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV.
619 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel.
620 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are
621 * relying on the fact that when running dtrace(1M), isaexec will invoke the
622 * binary with the same bitness as the kernel, which is what we want by default
623 * when generating our DIF. The user can override the choice using oflags.
624 */
625 static const dtrace_conf_t _dtrace_conf = {
626 DIF_VERSION, /* dtc_difversion */
627 DIF_DIR_NREGS, /* dtc_difintregs */
628 DIF_DTR_NREGS, /* dtc_diftupregs */
629 CTF_MODEL_NATIVE /* dtc_ctfmodel */
630 };
631
632 const dtrace_attribute_t _dtrace_maxattr = {
633 DTRACE_STABILITY_MAX,
634 DTRACE_STABILITY_MAX,
635 DTRACE_CLASS_MAX
636 };
637
638 const dtrace_attribute_t _dtrace_defattr = {
639 DTRACE_STABILITY_STABLE,
640 DTRACE_STABILITY_STABLE,
641 DTRACE_CLASS_COMMON
642 };
643
644 const dtrace_attribute_t _dtrace_symattr = {
645 DTRACE_STABILITY_PRIVATE,
646 DTRACE_STABILITY_PRIVATE,
647 DTRACE_CLASS_UNKNOWN
648 };
649
650 const dtrace_attribute_t _dtrace_typattr = {
651 DTRACE_STABILITY_PRIVATE,
652 DTRACE_STABILITY_PRIVATE,
653 DTRACE_CLASS_UNKNOWN
654 };
655
656 const dtrace_attribute_t _dtrace_prvattr = {
657 DTRACE_STABILITY_PRIVATE,
658 DTRACE_STABILITY_PRIVATE,
659 DTRACE_CLASS_UNKNOWN
660 };
661
662 const dtrace_pattr_t _dtrace_prvdesc = {
663 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
664 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
665 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
666 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
667 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
668 };
669
670 const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */
671 const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */
672
673 const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */
674 const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */
675
676 int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */
677 int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */
678 uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */
679 uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */
680 uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */
681 uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */
682 size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */
683 int _dtrace_argmax = 32; /* default maximum number of probe arguments */
684
685 int _dtrace_debug = 0; /* debug messages enabled (off) */
686 const char *const _dtrace_version = DT_VERS_STRING; /* API version string */
687 int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */
688
689 typedef struct dt_fdlist {
690 int *df_fds; /* array of provider driver file descriptors */
691 uint_t df_ents; /* number of valid elements in df_fds[] */
692 uint_t df_size; /* size of df_fds[] */
693 } dt_fdlist_t;
694
695 #pragma init(_dtrace_init)
696 void
697 _dtrace_init(void)
698 {
699 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL;
700
701 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) {
702 if (rd_init(_dtrace_rdvers) == RD_OK)
703 break;
704 }
705 }
706
707 static dtrace_hdl_t *
708 set_open_errno(dtrace_hdl_t *dtp, int *errp, int err)
709 {
710 if (dtp != NULL)
711 dtrace_close(dtp);
712 if (errp != NULL)
713 *errp = err;
714 return (NULL);
715 }
716
717 static void
718 dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp)
719 {
720 dt_provmod_t *prov;
721 char path[PATH_MAX];
722 struct dirent *dp, *ep;
723 DIR *dirp;
724 int fd;
725
726 if ((dirp = opendir(_dtrace_provdir)) == NULL)
727 return; /* failed to open directory; just skip it */
728
729 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1);
730 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1);
731
732 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) {
733 if (dp->d_name[0] == '.')
734 continue; /* skip "." and ".." */
735
736 if (dfp->df_ents == dfp->df_size) {
737 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16;
738 int *fds = realloc(dfp->df_fds, size * sizeof (int));
739
740 if (fds == NULL)
741 break; /* skip the rest of this directory */
742
743 dfp->df_fds = fds;
744 dfp->df_size = size;
745 }
746
747 (void) snprintf(path, sizeof (path), "%s/%s",
748 _dtrace_provdir, dp->d_name);
749
750 if ((fd = open(path, O_RDONLY)) == -1)
751 continue; /* failed to open driver; just skip it */
752
753 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) ||
754 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) {
755 free(prov);
756 (void) close(fd);
757 break;
758 }
759
760 (void) strcpy(prov->dp_name, dp->d_name);
761 prov->dp_next = *provmod;
762 *provmod = prov;
763
764 dt_dprintf("opened provider %s\n", dp->d_name);
765 dfp->df_fds[dfp->df_ents++] = fd;
766 }
767
768 (void) closedir(dirp);
769 }
770
771 static void
772 dt_provmod_destroy(dt_provmod_t **provmod)
773 {
774 dt_provmod_t *next, *current;
775
776 for (current = *provmod; current != NULL; current = next) {
777 next = current->dp_next;
778 free(current->dp_name);
779 free(current);
780 }
781
782 *provmod = NULL;
783 }
784
785 static const char *
786 dt_get_sysinfo(int cmd, char *buf, size_t len)
787 {
788 ssize_t rv = sysinfo(cmd, buf, len);
789 char *p = buf;
790
791 if (rv < 0 || rv > len)
792 (void) snprintf(buf, len, "%s", "Unknown");
793
794 while ((p = strchr(p, '.')) != NULL)
795 *p++ = '_';
796
797 return (buf);
798 }
799
800 static dtrace_hdl_t *
801 dt_vopen(int version, int flags, int *errp,
802 const dtrace_vector_t *vector, void *arg)
803 {
804 dtrace_hdl_t *dtp = NULL;
805 int dtfd = -1, ftfd = -1, fterr = 0;
806 dtrace_prog_t *pgp;
807 dt_module_t *dmp;
808 dt_provmod_t *provmod = NULL;
809 int i, err;
810 struct rlimit rl;
811
812 const dt_intrinsic_t *dinp;
813 const dt_typedef_t *dtyp;
814 const dt_ident_t *idp;
815
816 dtrace_typeinfo_t dtt;
817 ctf_funcinfo_t ctc;
818 ctf_arinfo_t ctr;
819
820 dt_fdlist_t df = { NULL, 0, 0 };
821
822 char isadef[32], utsdef[32];
823 char s1[64], s2[64];
824
825 if (version <= 0)
826 return (set_open_errno(dtp, errp, EINVAL));
827
828 if (version > DTRACE_VERSION)
829 return (set_open_errno(dtp, errp, EDT_VERSION));
830
831 if (version < DTRACE_VERSION) {
832 /*
833 * Currently, increasing the library version number is used to
834 * denote a binary incompatible change. That is, a consumer
835 * of the library cannot run on a version of the library with
836 * a higher DTRACE_VERSION number than the consumer compiled
837 * against. Once the library API has been committed to,
838 * backwards binary compatibility will be required; at that
839 * time, this check should change to return EDT_OVERSION only
840 * if the specified version number is less than the version
841 * number at the time of interface commitment.
842 */
843 return (set_open_errno(dtp, errp, EDT_OVERSION));
844 }
845
846 if (flags & ~DTRACE_O_MASK)
847 return (set_open_errno(dtp, errp, EINVAL));
848
849 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32))
850 return (set_open_errno(dtp, errp, EINVAL));
851
852 if (vector == NULL && arg != NULL)
853 return (set_open_errno(dtp, errp, EINVAL));
854
855 if (elf_version(EV_CURRENT) == EV_NONE)
856 return (set_open_errno(dtp, errp, EDT_ELFVERSION));
857
858 if (vector != NULL || (flags & DTRACE_O_NODEV))
859 goto alloc; /* do not attempt to open dtrace device */
860
861 /*
862 * Before we get going, crank our limit on file descriptors up to the
863 * hard limit. This is to allow for the fact that libproc keeps file
864 * descriptors to objects open for the lifetime of the proc handle;
865 * without raising our hard limit, we would have an acceptably small
866 * bound on the number of processes that we could concurrently
867 * instrument with the pid provider.
868 */
869 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) {
870 rl.rlim_cur = rl.rlim_max;
871 (void) setrlimit(RLIMIT_NOFILE, &rl);
872 }
873
874 /*
875 * Get the device path of each of the providers. We hold them open
876 * in the df.df_fds list until we open the DTrace driver itself,
877 * allowing us to see all of the probes provided on this system. Once
878 * we have the DTrace driver open, we can safely close all the providers
879 * now that they have registered with the framework.
880 */
881 dt_provmod_open(&provmod, &df);
882
883 dtfd = open("/dev/dtrace/dtrace", O_RDWR);
884 err = errno; /* save errno from opening dtfd */
885
886 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR);
887 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */
888
889 while (df.df_ents-- != 0)
890 (void) close(df.df_fds[df.df_ents]);
891
892 free(df.df_fds);
893
894 /*
895 * If we failed to open the dtrace device, fail dtrace_open().
896 * We convert some kernel errnos to custom libdtrace errnos to
897 * improve the resulting message from the usual strerror().
898 */
899 if (dtfd == -1) {
900 dt_provmod_destroy(&provmod);
901 switch (err) {
902 case ENOENT:
903 err = EDT_NOENT;
904 break;
905 case EBUSY:
906 err = EDT_BUSY;
907 break;
908 case EACCES:
909 err = EDT_ACCESS;
910 break;
911 }
912 return (set_open_errno(dtp, errp, err));
913 }
914
915 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC);
916 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC);
917
918 alloc:
919 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL)
920 return (set_open_errno(dtp, errp, EDT_NOMEM));
921
922 bzero(dtp, sizeof (dtrace_hdl_t));
923 dtp->dt_oflags = flags;
924 dtp->dt_prcmode = DT_PROC_STOP_PREINIT;
925 dtp->dt_linkmode = DT_LINK_KERNEL;
926 dtp->dt_linktype = DT_LTYP_ELF;
927 dtp->dt_xlatemode = DT_XL_STATIC;
928 dtp->dt_stdcmode = DT_STDC_XA;
929 dtp->dt_version = version;
930 dtp->dt_fd = dtfd;
931 dtp->dt_ftfd = ftfd;
932 dtp->dt_fterr = fterr;
933 dtp->dt_cdefs_fd = -1;
934 dtp->dt_ddefs_fd = -1;
935 dtp->dt_stdout_fd = -1;
936 dtp->dt_modbuckets = _dtrace_strbuckets;
937 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *));
938 dtp->dt_provbuckets = _dtrace_strbuckets;
939 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *));
940 dt_proc_hash_create(dtp);
941 dtp->dt_vmax = DT_VERS_LATEST;
942 dtp->dt_cpp_path = strdup(_dtrace_defcpp);
943 dtp->dt_cpp_argv = malloc(sizeof (char *));
944 dtp->dt_cpp_argc = 1;
945 dtp->dt_cpp_args = 1;
946 dtp->dt_ld_path = strdup(_dtrace_defld);
947 dtp->dt_provmod = provmod;
948 dtp->dt_vector = vector;
949 dtp->dt_varg = arg;
950 dt_dof_init(dtp);
951 (void) uname(&dtp->dt_uts);
952
953 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL ||
954 dtp->dt_procs == NULL || dtp->dt_ld_path == NULL ||
955 dtp->dt_cpp_path == NULL || dtp->dt_cpp_argv == NULL)
956 return (set_open_errno(dtp, errp, EDT_NOMEM));
957
958 for (i = 0; i < DTRACEOPT_MAX; i++)
959 dtp->dt_options[i] = DTRACEOPT_UNSET;
960
961 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path);
962
963 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u",
964 (uint_t)(sizeof (void *) * NBBY));
965
966 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s",
967 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)),
968 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2)));
969
970 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL ||
971 dt_cpp_add_arg(dtp, "-D__unix") == NULL ||
972 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL ||
973 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL ||
974 dt_cpp_add_arg(dtp, isadef) == NULL ||
975 dt_cpp_add_arg(dtp, utsdef) == NULL)
976 return (set_open_errno(dtp, errp, EDT_NOMEM));
977
978 if (flags & DTRACE_O_NODEV)
979 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf));
980 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0)
981 return (set_open_errno(dtp, errp, errno));
982
983 if (flags & DTRACE_O_LP64)
984 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64;
985 else if (flags & DTRACE_O_ILP32)
986 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32;
987
988 #ifdef __sparc
989 /*
990 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h>
991 * and __sparcv9 is defined if we are doing a 64-bit compile.
992 */
993 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL)
994 return (set_open_errno(dtp, errp, EDT_NOMEM));
995
996 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 &&
997 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL)
998 return (set_open_errno(dtp, errp, EDT_NOMEM));
999 #endif
1000
1001 #ifdef __x86
1002 /*
1003 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit
1004 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC,
1005 * they are defined exclusive of one another (see PSARC 2004/619).
1006 */
1007 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) {
1008 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL)
1009 return (set_open_errno(dtp, errp, EDT_NOMEM));
1010 } else {
1011 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL)
1012 return (set_open_errno(dtp, errp, EDT_NOMEM));
1013 }
1014 #endif
1015
1016 if (dtp->dt_conf.dtc_difversion < DIF_VERSION)
1017 return (set_open_errno(dtp, errp, EDT_DIFVERS));
1018
1019 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32)
1020 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32));
1021 else
1022 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64));
1023
1024 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX);
1025 dtp->dt_aggs = dt_idhash_create("aggregation", NULL,
1026 DTRACE_AGGVARIDNONE + 1, UINT_MAX);
1027
1028 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals,
1029 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX);
1030
1031 dtp->dt_tls = dt_idhash_create("thread local", NULL,
1032 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX);
1033
1034 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL ||
1035 dtp->dt_globals == NULL || dtp->dt_tls == NULL)
1036 return (set_open_errno(dtp, errp, EDT_NOMEM));
1037
1038 /*
1039 * Populate the dt_macros identifier hash table by hand: we can't use
1040 * the dt_idhash_populate() mechanism because we're not yet compiling
1041 * and dtrace_update() needs to immediately reference these idents.
1042 */
1043 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) {
1044 if (dt_idhash_insert(dtp->dt_macros, idp->di_name,
1045 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr,
1046 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw,
1047 idp->di_iarg, 0) == NULL)
1048 return (set_open_errno(dtp, errp, EDT_NOMEM));
1049 }
1050
1051 /*
1052 * Update the module list using /system/object and load the values for
1053 * the macro variable definitions according to the current process.
1054 */
1055 dtrace_update(dtp);
1056
1057 /*
1058 * Select the intrinsics and typedefs we want based on the data model.
1059 * The intrinsics are under "C". The typedefs are added under "D".
1060 */
1061 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) {
1062 dinp = _dtrace_intrinsics_32;
1063 dtyp = _dtrace_typedefs_32;
1064 } else {
1065 dinp = _dtrace_intrinsics_64;
1066 dtyp = _dtrace_typedefs_64;
1067 }
1068
1069 /*
1070 * Create a dynamic CTF container under the "C" scope for intrinsic
1071 * types and types defined in ANSI-C header files that are included.
1072 */
1073 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL)
1074 return (set_open_errno(dtp, errp, EDT_NOMEM));
1075
1076 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL)
1077 return (set_open_errno(dtp, errp, EDT_CTF));
1078
1079 dt_dprintf("created CTF container for %s (%p)\n",
1080 dmp->dm_name, (void *)dmp->dm_ctfp);
1081
1082 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel);
1083 ctf_setspecific(dmp->dm_ctfp, dmp);
1084
1085 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */
1086 dmp->dm_modid = -1; /* no module ID */
1087
1088 /*
1089 * Fill the dynamic "C" CTF container with all of the intrinsic
1090 * integer and floating-point types appropriate for this data model.
1091 */
1092 for (; dinp->din_name != NULL; dinp++) {
1093 if (dinp->din_kind == CTF_K_INTEGER) {
1094 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT,
1095 dinp->din_name, &dinp->din_data);
1096 } else {
1097 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT,
1098 dinp->din_name, &dinp->din_data);
1099 }
1100
1101 if (err == CTF_ERR) {
1102 dt_dprintf("failed to add %s to C container: %s\n",
1103 dinp->din_name, ctf_errmsg(
1104 ctf_errno(dmp->dm_ctfp)));
1105 return (set_open_errno(dtp, errp, EDT_CTF));
1106 }
1107 }
1108
1109 if (ctf_update(dmp->dm_ctfp) != 0) {
1110 dt_dprintf("failed to update C container: %s\n",
1111 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1112 return (set_open_errno(dtp, errp, EDT_CTF));
1113 }
1114
1115 /*
1116 * Add intrinsic pointer types that are needed to initialize printf
1117 * format dictionary types (see table in dt_printf.c).
1118 */
1119 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT,
1120 ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1121
1122 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT,
1123 ctf_lookup_by_name(dmp->dm_ctfp, "char"));
1124
1125 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT,
1126 ctf_lookup_by_name(dmp->dm_ctfp, "int"));
1127
1128 if (ctf_update(dmp->dm_ctfp) != 0) {
1129 dt_dprintf("failed to update C container: %s\n",
1130 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1131 return (set_open_errno(dtp, errp, EDT_CTF));
1132 }
1133
1134 /*
1135 * Create a dynamic CTF container under the "D" scope for types that
1136 * are defined by the D program itself or on-the-fly by the D compiler.
1137 * The "D" CTF container is a child of the "C" CTF container.
1138 */
1139 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL)
1140 return (set_open_errno(dtp, errp, EDT_NOMEM));
1141
1142 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL)
1143 return (set_open_errno(dtp, errp, EDT_CTF));
1144
1145 dt_dprintf("created CTF container for %s (%p)\n",
1146 dmp->dm_name, (void *)dmp->dm_ctfp);
1147
1148 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel);
1149 ctf_setspecific(dmp->dm_ctfp, dmp);
1150
1151 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */
1152 dmp->dm_modid = -1; /* no module ID */
1153
1154 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) {
1155 dt_dprintf("failed to import D parent container: %s\n",
1156 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1157 return (set_open_errno(dtp, errp, EDT_CTF));
1158 }
1159
1160 /*
1161 * Fill the dynamic "D" CTF container with all of the built-in typedefs
1162 * that we need to use for our D variable and function definitions.
1163 * This ensures that basic inttypes.h names are always available to us.
1164 */
1165 for (; dtyp->dty_src != NULL; dtyp++) {
1166 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1167 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp,
1168 dtyp->dty_src)) == CTF_ERR) {
1169 dt_dprintf("failed to add typedef %s %s to D "
1170 "container: %s", dtyp->dty_src, dtyp->dty_dst,
1171 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1172 return (set_open_errno(dtp, errp, EDT_CTF));
1173 }
1174 }
1175
1176 /*
1177 * Insert a CTF ID corresponding to a pointer to a type of kind
1178 * CTF_K_FUNCTION we can use in the compiler for function pointers.
1179 * CTF treats all function pointers as "int (*)()" so we only need one.
1180 */
1181 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int");
1182 ctc.ctc_argc = 0;
1183 ctc.ctc_flags = 0;
1184
1185 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp,
1186 CTF_ADD_ROOT, &ctc, NULL);
1187
1188 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp,
1189 CTF_ADD_ROOT, dtp->dt_type_func);
1190
1191 /*
1192 * We also insert CTF definitions for the special D intrinsic types
1193 * string and <DYN> into the D container. The string type is added
1194 * as a typedef of char[n]. The <DYN> type is an alias for void.
1195 * We compare types to these special CTF ids throughout the compiler.
1196 */
1197 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char");
1198 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long");
1199 ctr.ctr_nelems = _dtrace_strsize;
1200
1201 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1202 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr));
1203
1204 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1205 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1206
1207 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1208 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1209
1210 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1211 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1212
1213 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1214 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1215
1216 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR ||
1217 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR ||
1218 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR ||
1219 dtp->dt_type_usymaddr == CTF_ERR) {
1220 dt_dprintf("failed to add intrinsic to D container: %s\n",
1221 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1222 return (set_open_errno(dtp, errp, EDT_CTF));
1223 }
1224
1225 if (ctf_update(dmp->dm_ctfp) != 0) {
1226 dt_dprintf("failed update D container: %s\n",
1227 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1228 return (set_open_errno(dtp, errp, EDT_CTF));
1229 }
1230
1231 /*
1232 * Initialize the integer description table used to convert integer
1233 * constants to the appropriate types. Refer to the comments above
1234 * dt_node_int() for a complete description of how this table is used.
1235 */
1236 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) {
1237 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY,
1238 dtp->dt_ints[i].did_name, &dtt) != 0) {
1239 dt_dprintf("failed to lookup integer type %s: %s\n",
1240 dtp->dt_ints[i].did_name,
1241 dtrace_errmsg(dtp, dtrace_errno(dtp)));
1242 return (set_open_errno(dtp, errp, dtp->dt_errno));
1243 }
1244 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp;
1245 dtp->dt_ints[i].did_type = dtt.dtt_type;
1246 }
1247
1248 /*
1249 * Now that we've created the "C" and "D" containers, move them to the
1250 * start of the module list so that these types and symbols are found
1251 * first (for stability) when iterating through the module list.
1252 */
1253 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs);
1254 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs);
1255
1256 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs);
1257 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs);
1258
1259 if (dt_pfdict_create(dtp) == -1)
1260 return (set_open_errno(dtp, errp, dtp->dt_errno));
1261
1262 /*
1263 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default
1264 * because without /dev/dtrace open, we will not be able to load the
1265 * names and attributes of any providers or probes from the kernel.
1266 */
1267 if (flags & DTRACE_O_NODEV)
1268 dtp->dt_cflags |= DTRACE_C_ZDEFS;
1269
1270 /*
1271 * Load hard-wired inlines into the definition cache by calling the
1272 * compiler on the raw definition string defined above.
1273 */
1274 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire,
1275 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) {
1276 dt_dprintf("failed to load hard-wired definitions: %s\n",
1277 dtrace_errmsg(dtp, dtrace_errno(dtp)));
1278 return (set_open_errno(dtp, errp, EDT_HARDWIRE));
1279 }
1280
1281 dt_program_destroy(dtp, pgp);
1282
1283 /*
1284 * Set up the default DTrace library path. Once set, the next call to
1285 * dt_compile() will compile all the libraries. We intentionally defer
1286 * library processing to improve overhead for clients that don't ever
1287 * compile, and to provide better error reporting (because the full
1288 * reporting of compiler errors requires dtrace_open() to succeed).
1289 */
1290 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0)
1291 return (set_open_errno(dtp, errp, dtp->dt_errno));
1292
1293 return (dtp);
1294 }
1295
1296 dtrace_hdl_t *
1297 dtrace_open(int version, int flags, int *errp)
1298 {
1299 return (dt_vopen(version, flags, errp, NULL, NULL));
1300 }
1301
1302 dtrace_hdl_t *
1303 dtrace_vopen(int version, int flags, int *errp,
1304 const dtrace_vector_t *vector, void *arg)
1305 {
1306 return (dt_vopen(version, flags, errp, vector, arg));
1307 }
1308
1309 void
1310 dtrace_close(dtrace_hdl_t *dtp)
1311 {
1312 dt_ident_t *idp, *ndp;
1313 dt_module_t *dmp;
1314 dt_provider_t *pvp;
1315 dtrace_prog_t *pgp;
1316 dt_xlator_t *dxp;
1317 dt_dirpath_t *dirp;
1318 int i;
1319
1320 if (dtp->dt_procs != NULL)
1321 dt_proc_hash_destroy(dtp);
1322
1323 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL)
1324 dt_program_destroy(dtp, pgp);
1325
1326 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL)
1327 dt_xlator_destroy(dtp, dxp);
1328
1329 dt_free(dtp, dtp->dt_xlatormap);
1330
1331 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) {
1332 ndp = idp->di_next;
1333 dt_ident_destroy(idp);
1334 }
1335
1336 if (dtp->dt_macros != NULL)
1337 dt_idhash_destroy(dtp->dt_macros);
1338 if (dtp->dt_aggs != NULL)
1339 dt_idhash_destroy(dtp->dt_aggs);
1340 if (dtp->dt_globals != NULL)
1341 dt_idhash_destroy(dtp->dt_globals);
1342 if (dtp->dt_tls != NULL)
1343 dt_idhash_destroy(dtp->dt_tls);
1344
1345 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL)
1346 dt_module_destroy(dtp, dmp);
1347
1348 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL)
1349 dt_provider_destroy(dtp, pvp);
1350
1351 if (dtp->dt_fd != -1)
1352 (void) close(dtp->dt_fd);
1353 if (dtp->dt_ftfd != -1)
1354 (void) close(dtp->dt_ftfd);
1355 if (dtp->dt_cdefs_fd != -1)
1356 (void) close(dtp->dt_cdefs_fd);
1357 if (dtp->dt_ddefs_fd != -1)
1358 (void) close(dtp->dt_ddefs_fd);
1359 if (dtp->dt_stdout_fd != -1)
1360 (void) close(dtp->dt_stdout_fd);
1361
1362 dt_epid_destroy(dtp);
1363 dt_aggid_destroy(dtp);
1364 dt_format_destroy(dtp);
1365 dt_strdata_destroy(dtp);
1366 dt_buffered_destroy(dtp);
1367 dt_aggregate_destroy(dtp);
1368 free(dtp->dt_buf.dtbd_data);
1369 dt_pfdict_destroy(dtp);
1370 dt_provmod_destroy(&dtp->dt_provmod);
1371 dt_dof_fini(dtp);
1372
1373 for (i = 1; i < dtp->dt_cpp_argc; i++)
1374 free(dtp->dt_cpp_argv[i]);
1375
1376 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) {
1377 dt_list_delete(&dtp->dt_lib_path, dirp);
1378 free(dirp->dir_path);
1379 free(dirp);
1380 }
1381
1382 free(dtp->dt_cpp_argv);
1383 free(dtp->dt_cpp_path);
1384 free(dtp->dt_ld_path);
1385
1386 free(dtp->dt_mods);
1387 free(dtp->dt_provs);
1388 free(dtp);
1389 }
1390
1391 int
1392 dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods)
1393 {
1394 dt_provmod_t *prov;
1395 int i = 0;
1396
1397 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) {
1398 if (i < nmods)
1399 mods[i] = prov->dp_name;
1400 }
1401
1402 return (i);
1403 }
1404
1405 int
1406 dtrace_ctlfd(dtrace_hdl_t *dtp)
1407 {
1408 return (dtp->dt_fd);
1409 }