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