1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Copyright (c) 2013, Joyent, Inc. All rights reserved.
25 * Copyright (c) 2012 by Delphix. All rights reserved.
26 */
27
28 #include <sys/types.h>
29 #ifdef illumos
30 #include <sys/modctl.h>
31 #include <sys/systeminfo.h>
32 #else
33 #include <sys/param.h>
34 #include <sys/module.h>
35 #include <sys/linker.h>
36 #endif
37 #include <sys/resource.h>
38
39 #include <libelf.h>
40 #include <strings.h>
41 #ifdef illumos
42 #include <alloca.h>
43 #endif
44 #include <limits.h>
45 #include <unistd.h>
46 #include <stdlib.h>
47 #include <stdio.h>
48 #include <fcntl.h>
49 #include <errno.h>
50 #include <assert.h>
51
52 #define _POSIX_PTHREAD_SEMANTICS
53 #include <dirent.h>
54 #undef _POSIX_PTHREAD_SEMANTICS
55
56 #include <dt_impl.h>
57 #include <dt_program.h>
58 #include <dt_module.h>
59 #include <dt_printf.h>
60 #include <dt_string.h>
61 #include <dt_provider.h>
62 #ifndef illumos
63 #include <sys/sysctl.h>
64 #include <string.h>
65 #endif
66 #if defined(__i386__)
67 #include <ieeefp.h>
68 #endif
69
70 /*
71 * Stability and versioning definitions. These #defines are used in the tables
72 * of identifiers below to fill in the attribute and version fields associated
73 * with each identifier. The DT_ATTR_* macros are a convenience to permit more
74 * concise declarations of common attributes such as Stable/Stable/Common. The
75 * DT_VERS_* macros declare the encoded integer values of all versions used so
76 * far. DT_VERS_LATEST must correspond to the latest version value among all
77 * versions exported by the D compiler. DT_VERS_STRING must be an ASCII string
78 * that contains DT_VERS_LATEST within it along with any suffixes (e.g. Beta).
79 * You must update DT_VERS_LATEST and DT_VERS_STRING when adding a new version,
80 * and then add the new version to the _dtrace_versions[] array declared below.
81 * Refer to the Solaris Dynamic Tracing Guide Stability and Versioning chapters
82 * respectively for an explanation of these DTrace features and their values.
83 *
84 * NOTE: Although the DTrace versioning scheme supports the labeling and
85 * introduction of incompatible changes (e.g. dropping an interface in a
86 * major release), the libdtrace code does not currently support this.
87 * All versions are assumed to strictly inherit from one another. If
88 * we ever need to provide divergent interfaces, this will need work.
89 */
90 #define DT_ATTR_STABCMN { DTRACE_STABILITY_STABLE, \
91 DTRACE_STABILITY_STABLE, DTRACE_CLASS_COMMON }
92
93 #define DT_ATTR_EVOLCMN { DTRACE_STABILITY_EVOLVING, \
94 DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_COMMON \
95 }
96
97 /*
98 * The version number should be increased for every customer visible release
99 * of DTrace. The major number should be incremented when a fundamental
100 * change has been made that would affect all consumers, and would reflect
101 * sweeping changes to DTrace or the D language. The minor number should be
102 * incremented when a change is introduced that could break scripts that had
103 * previously worked; for example, adding a new built-in variable could break
104 * a script which was already using that identifier. The micro number should
105 * be changed when introducing functionality changes or major bug fixes that
106 * do not affect backward compatibility -- this is merely to make capabilities
107 * easily determined from the version number. Minor bugs do not require any
108 * modification to the version number.
109 */
110 #define DT_VERS_1_0 DT_VERSION_NUMBER(1, 0, 0)
111 #define DT_VERS_1_1 DT_VERSION_NUMBER(1, 1, 0)
112 #define DT_VERS_1_2 DT_VERSION_NUMBER(1, 2, 0)
113 #define DT_VERS_1_2_1 DT_VERSION_NUMBER(1, 2, 1)
114 #define DT_VERS_1_2_2 DT_VERSION_NUMBER(1, 2, 2)
115 #define DT_VERS_1_3 DT_VERSION_NUMBER(1, 3, 0)
116 #define DT_VERS_1_4 DT_VERSION_NUMBER(1, 4, 0)
117 #define DT_VERS_1_4_1 DT_VERSION_NUMBER(1, 4, 1)
118 #define DT_VERS_1_5 DT_VERSION_NUMBER(1, 5, 0)
119 #define DT_VERS_1_6 DT_VERSION_NUMBER(1, 6, 0)
120 #define DT_VERS_1_6_1 DT_VERSION_NUMBER(1, 6, 1)
121 #define DT_VERS_1_6_2 DT_VERSION_NUMBER(1, 6, 2)
122 #define DT_VERS_1_6_3 DT_VERSION_NUMBER(1, 6, 3)
123 #define DT_VERS_1_7 DT_VERSION_NUMBER(1, 7, 0)
124 #define DT_VERS_1_7_1 DT_VERSION_NUMBER(1, 7, 1)
125 #define DT_VERS_1_8 DT_VERSION_NUMBER(1, 8, 0)
126 #define DT_VERS_1_8_1 DT_VERSION_NUMBER(1, 8, 1)
127 #define DT_VERS_1_9 DT_VERSION_NUMBER(1, 9, 0)
128 #define DT_VERS_1_9_1 DT_VERSION_NUMBER(1, 9, 1)
129 #define DT_VERS_1_10 DT_VERSION_NUMBER(1, 10, 0)
130 #define DT_VERS_1_11 DT_VERSION_NUMBER(1, 11, 0)
131 #define DT_VERS_1_12 DT_VERSION_NUMBER(1, 12, 0)
132 #define DT_VERS_1_12_1 DT_VERSION_NUMBER(1, 12, 1)
133 #define DT_VERS_LATEST DT_VERS_1_12_1
134 #define DT_VERS_STRING "Sun D 1.12.1"
135
136 const dt_version_t _dtrace_versions[] = {
137 DT_VERS_1_0, /* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */
138 DT_VERS_1_1, /* D API 1.1.0 Solaris Express 6/05 */
139 DT_VERS_1_2, /* D API 1.2.0 Solaris 10 Update 1 */
140 DT_VERS_1_2_1, /* D API 1.2.1 Solaris Express 4/06 */
141 DT_VERS_1_2_2, /* D API 1.2.2 Solaris Express 6/06 */
142 DT_VERS_1_3, /* D API 1.3 Solaris Express 10/06 */
143 DT_VERS_1_4, /* D API 1.4 Solaris Express 2/07 */
144 DT_VERS_1_4_1, /* D API 1.4.1 Solaris Express 4/07 */
145 DT_VERS_1_5, /* D API 1.5 Solaris Express 7/07 */
146 DT_VERS_1_6, /* D API 1.6 */
147 DT_VERS_1_6_1, /* D API 1.6.1 */
148 DT_VERS_1_6_2, /* D API 1.6.2 */
149 DT_VERS_1_6_3, /* D API 1.6.3 */
150 DT_VERS_1_7, /* D API 1.7 */
151 DT_VERS_1_7_1, /* D API 1.7.1 */
152 DT_VERS_1_8, /* D API 1.8 */
153 DT_VERS_1_8_1, /* D API 1.8.1 */
154 DT_VERS_1_9, /* D API 1.9 */
155 DT_VERS_1_9_1, /* D API 1.9.1 */
156 DT_VERS_1_10, /* D API 1.10 */
157 DT_VERS_1_11, /* D API 1.11 */
158 DT_VERS_1_12, /* D API 1.12 */
159 DT_VERS_1_12_1, /* D API 1.12.1 */
160 0
161 };
162
163 /*
164 * Global variables that are formatted on FreeBSD based on the kernel file name.
165 */
166 #ifndef illumos
167 static char curthread_str[MAXPATHLEN];
168 static char intmtx_str[MAXPATHLEN];
169 static char threadmtx_str[MAXPATHLEN];
170 static char rwlock_str[MAXPATHLEN];
171 static char sxlock_str[MAXPATHLEN];
172 #endif
173
174 /*
175 * Table of global identifiers. This is used to populate the global identifier
176 * hash when a new dtrace client open occurs. For more info see dt_ident.h.
177 * The global identifiers that represent functions use the dt_idops_func ops
178 * and specify the private data pointer as a prototype string which is parsed
179 * when the identifier is first encountered. These prototypes look like ANSI
180 * C function prototypes except that the special symbol "@" can be used as a
181 * wildcard to represent a single parameter of any type (i.e. any dt_node_t).
182 * The standard "..." notation can also be used to represent varargs. An empty
183 * parameter list is taken to mean void (that is, no arguments are permitted).
184 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional
185 * argument.
186 */
187 static const dt_ident_t _dtrace_globals[] = {
188 { "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0,
189 &dt_idops_func, "void *(size_t)" },
190 { "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0,
191 &dt_idops_type, "int64_t" },
192 { "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0,
193 &dt_idops_type, "int64_t" },
194 { "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0,
195 &dt_idops_type, "int64_t" },
196 { "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0,
197 &dt_idops_type, "int64_t" },
198 { "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0,
199 &dt_idops_type, "int64_t" },
200 { "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0,
201 &dt_idops_type, "int64_t" },
202 { "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0,
203 &dt_idops_type, "int64_t" },
204 { "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0,
205 &dt_idops_type, "int64_t" },
206 { "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0,
207 &dt_idops_type, "int64_t" },
208 { "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0,
209 &dt_idops_type, "int64_t" },
210 { "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0,
211 &dt_idops_args, NULL },
212 { "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0,
213 &dt_idops_func, "void(@)" },
214 { "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0,
215 &dt_idops_func, "string(const char *)" },
216 { "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0,
217 &dt_idops_func, "void(void *, void *, size_t)" },
218 { "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT,
219 DT_ATTR_STABCMN, DT_VERS_1_0,
220 &dt_idops_func, "void()" },
221 { "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0,
222 &dt_idops_type, "uintptr_t" },
223 { "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0,
224 &dt_idops_func, "void(int)" },
225 { "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN,
226 DT_VERS_1_0, &dt_idops_func, "string(const char *)" },
227 { "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0,
228 &dt_idops_func, "void(...)" },
229 { "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0,
230 &dt_idops_func, "void(int)" },
231 { "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0,
232 &dt_idops_func, "void *(uintptr_t, size_t)" },
233 { "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR,
234 DT_ATTR_STABCMN, DT_VERS_1_0,
235 &dt_idops_func, "string(uintptr_t, [size_t])" },
236 { "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN,
237 DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" },
238 { "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0,
239 &dt_idops_func, "void(void *, uintptr_t, size_t)" },
240 { "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR,
241 DT_ATTR_STABCMN, DT_VERS_1_0,
242 &dt_idops_func, "void(char *, uintptr_t, size_t)" },
243 { "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0,
244 &dt_idops_func, "void()" },
245 { "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD,
246 { DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE,
247 DTRACE_CLASS_COMMON }, DT_VERS_1_0,
248 #ifdef illumos
249 &dt_idops_type, "genunix`kthread_t *" },
250 #else
251 &dt_idops_type, curthread_str },
252 #endif
253 { "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME,
254 DT_ATTR_EVOLCMN, DT_VERS_1_0,
255 &dt_idops_func, "string(void *, int64_t)" },
256 { "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN,
257 DT_VERS_1_0, &dt_idops_func, "void(...)" },
258 { "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0,
259 &dt_idops_func, "string(const char *)" },
260 { "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0,
261 &dt_idops_func, "void(int)" },
262 { "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0,
263 &dt_idops_type, "uint_t" },
264 { "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0,
265 &dt_idops_type, "int" },
266 { "execargs", DT_IDENT_SCALAR, 0, DIF_VAR_EXECARGS,
267 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
268 { "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME,
269 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
270 { "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0,
271 &dt_idops_func, "void(int)" },
272 { "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN,
273 DT_VERS_1_1, &dt_idops_func, "void(@, ...)" },
274 { "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN,
275 DT_VERS_1_0, &dt_idops_func, "void()" },
276 { "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN,
277 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" },
278 { "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR,
279 DT_ATTR_EVOLCMN, DT_VERS_1_0,
280 &dt_idops_func, "genunix`major_t(genunix`dev_t)" },
281 { "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR,
282 DT_ATTR_EVOLCMN, DT_VERS_1_0,
283 &dt_idops_func, "genunix`minor_t(genunix`dev_t)" },
284 { "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
285 &dt_idops_func, "uint32_t(uint32_t)" },
286 { "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
287 &dt_idops_func, "uint64_t(uint64_t)" },
288 { "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3,
289 &dt_idops_func, "uint16_t(uint16_t)" },
290 { "getf", DT_IDENT_FUNC, 0, DIF_SUBR_GETF, DT_ATTR_STABCMN, DT_VERS_1_10,
291 &dt_idops_func, "file_t *(int)" },
292 { "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0,
293 &dt_idops_type, "gid_t" },
294 { "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0,
295 &dt_idops_type, "uint_t" },
296 { "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1,
297 &dt_idops_func, "int(const char *, const char *, [int])" },
298 { "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN,
299 #ifdef illumos
300 DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" },
301 #else
302 DT_VERS_1_5, &dt_idops_func, "string(in_addr_t *)" },
303 #endif
304 { "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN,
305 #ifdef illumos
306 DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" },
307 #else
308 DT_VERS_1_5, &dt_idops_func, "string(struct in6_addr *)" },
309 #endif
310 { "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN,
311 DT_VERS_1_5, &dt_idops_func, "string(int, void *)" },
312 { "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0,
313 &dt_idops_type, "uint_t" },
314 { "json", DT_IDENT_FUNC, 0, DIF_SUBR_JSON, DT_ATTR_STABCMN, DT_VERS_1_11,
315 &dt_idops_func, "string(const char *, const char *)" },
316 { "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0,
317 &dt_idops_func, "stack(...)" },
318 { "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0,
319 &dt_idops_func, "string(int64_t, [int])" },
320 { "llquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LLQUANTIZE, DT_ATTR_STABCMN,
321 DT_VERS_1_7, &dt_idops_func,
322 "void(@, int32_t, int32_t, int32_t, int32_t, ...)" },
323 { "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE,
324 DT_ATTR_STABCMN, DT_VERS_1_0,
325 &dt_idops_func, "void(@, int32_t, int32_t, ...)" },
326 { "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0,
327 &dt_idops_func, "void(@)" },
328 { "memref", DT_IDENT_FUNC, 0, DIF_SUBR_MEMREF, DT_ATTR_STABCMN, DT_VERS_1_1,
329 &dt_idops_func, "uintptr_t *(void *, size_t)" },
330 #ifndef illumos
331 { "memstr", DT_IDENT_FUNC, 0, DIF_SUBR_MEMSTR, DT_ATTR_STABCMN, DT_VERS_1_0,
332 &dt_idops_func, "string(void *, char, size_t)" },
333 #endif
334 { "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0,
335 &dt_idops_func, "void(@)" },
336 { "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN,
337 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" },
338 { "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE,
339 DT_ATTR_STABCMN, DT_VERS_1_0,
340 &dt_idops_func, "size_t(mblk_t *)" },
341 { "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE,
342 DT_ATTR_STABCMN, DT_VERS_1_0,
343 &dt_idops_func, "size_t(mblk_t *)" },
344 #ifdef illumos
345 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED,
346 DT_ATTR_EVOLCMN, DT_VERS_1_0,
347 &dt_idops_func, "int(genunix`kmutex_t *)" },
348 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER,
349 DT_ATTR_EVOLCMN, DT_VERS_1_0,
350 &dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" },
351 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE,
352 DT_ATTR_EVOLCMN, DT_VERS_1_0,
353 &dt_idops_func, "int(genunix`kmutex_t *)" },
354 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN,
355 DT_ATTR_EVOLCMN, DT_VERS_1_0,
356 &dt_idops_func, "int(genunix`kmutex_t *)" },
357 #else
358 { "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED,
359 DT_ATTR_EVOLCMN, DT_VERS_1_0,
360 &dt_idops_func, intmtx_str },
361 { "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER,
362 DT_ATTR_EVOLCMN, DT_VERS_1_0,
363 &dt_idops_func, threadmtx_str },
364 { "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE,
365 DT_ATTR_EVOLCMN, DT_VERS_1_0,
366 &dt_idops_func, intmtx_str },
367 { "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN,
368 DT_ATTR_EVOLCMN, DT_VERS_1_0,
369 &dt_idops_func, intmtx_str },
370 #endif
371 { "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
372 &dt_idops_func, "uint32_t(uint32_t)" },
373 { "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
374 &dt_idops_func, "uint64_t(uint64_t)" },
375 { "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3,
376 &dt_idops_func, "uint16_t(uint16_t)" },
377 { "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN,
378 DT_VERS_1_0, &dt_idops_func, "void(...)" },
379 { "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0,
380 &dt_idops_func, "void()" },
381 { "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0,
382 &dt_idops_type, "pid_t" },
383 { "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0,
384 &dt_idops_type, "pid_t" },
385 { "print", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINT, DT_ATTR_STABCMN, DT_VERS_1_9,
386 &dt_idops_func, "void(@)" },
387 { "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0,
388 &dt_idops_func, "void(@, ...)" },
389 { "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0,
390 &dt_idops_func, "void(@, ...)" },
391 { "printm", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTM, DT_ATTR_STABCMN, DT_VERS_1_0,
392 &dt_idops_func, "void(size_t, uintptr_t *)" },
393 { "printt", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTT, DT_ATTR_STABCMN, DT_VERS_1_0,
394 &dt_idops_func, "void(size_t, uintptr_t *)" },
395 { "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC,
396 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
397 { "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD,
398 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
399 { "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME,
400 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
401 { "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV,
402 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
403 { "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF,
404 DT_ATTR_STABCMN, DT_VERS_1_0,
405 &dt_idops_func, "int(pid_t)" },
406 { "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE,
407 DT_ATTR_STABCMN, DT_VERS_1_0,
408 &dt_idops_func, "void(@, ...)" },
409 { "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0,
410 &dt_idops_func, "void(int)" },
411 { "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0,
412 &dt_idops_func, "int()" },
413 { "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1,
414 &dt_idops_func, "int(const char *, const char *, [int])" },
415 #ifdef illumos
416 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER,
417 DT_ATTR_EVOLCMN, DT_VERS_1_0,
418 &dt_idops_func, "int(genunix`krwlock_t *)" },
419 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD,
420 DT_ATTR_EVOLCMN, DT_VERS_1_0,
421 &dt_idops_func, "int(genunix`krwlock_t *)" },
422 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD,
423 DT_ATTR_EVOLCMN, DT_VERS_1_0,
424 &dt_idops_func, "int(genunix`krwlock_t *)" },
425 #else
426 { "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER,
427 DT_ATTR_EVOLCMN, DT_VERS_1_0,
428 &dt_idops_func, rwlock_str },
429 { "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD,
430 DT_ATTR_EVOLCMN, DT_VERS_1_0,
431 &dt_idops_func, rwlock_str },
432 { "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD,
433 DT_ATTR_EVOLCMN, DT_VERS_1_0,
434 &dt_idops_func, rwlock_str },
435 #endif
436 { "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0,
437 &dt_idops_type, "void" },
438 { "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN,
439 DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" },
440 { "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE,
441 DT_ATTR_STABCMN, DT_VERS_1_0,
442 &dt_idops_func, "void(int)" },
443 { "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION,
444 DT_ATTR_STABCMN, DT_VERS_1_0,
445 &dt_idops_func, "int()" },
446 { "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0,
447 &dt_idops_func, "stack(...)" },
448 { "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH,
449 DT_ATTR_STABCMN, DT_VERS_1_0,
450 &dt_idops_type, "uint32_t" },
451 { "stddev", DT_IDENT_AGGFUNC, 0, DTRACEAGG_STDDEV, DT_ATTR_STABCMN,
452 DT_VERS_1_6, &dt_idops_func, "void(@)" },
453 { "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0,
454 &dt_idops_func, "void()" },
455 { "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1,
456 &dt_idops_func, "string(const char *, char)" },
457 { "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0,
458 &dt_idops_func, "size_t(const char *)" },
459 { "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0,
460 &dt_idops_func, "string(const char *, const char *)" },
461 { "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1,
462 &dt_idops_func, "string(const char *, char)" },
463 { "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1,
464 &dt_idops_func, "string(const char *, const char *)" },
465 { "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1,
466 &dt_idops_func, "string(const char *, const char *)" },
467 { "strtoll", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOLL, DT_ATTR_STABCMN, DT_VERS_1_11,
468 &dt_idops_func, "int64_t(const char *, [int])" },
469 { "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1,
470 &dt_idops_func, "string(const char *, int, [int])" },
471 { "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0,
472 &dt_idops_func, "void(@)" },
473 #ifndef illumos
474 { "sx_isexclusive", DT_IDENT_FUNC, 0, DIF_SUBR_SX_ISEXCLUSIVE,
475 DT_ATTR_EVOLCMN, DT_VERS_1_0,
476 &dt_idops_func, sxlock_str },
477 { "sx_shared_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_SHARED_HELD,
478 DT_ATTR_EVOLCMN, DT_VERS_1_0,
479 &dt_idops_func, sxlock_str },
480 { "sx_exclusive_held", DT_IDENT_FUNC, 0, DIF_SUBR_SX_EXCLUSIVE_HELD,
481 DT_ATTR_EVOLCMN, DT_VERS_1_0,
482 &dt_idops_func, sxlock_str },
483 #endif
484 { "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN,
485 DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" },
486 { "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0,
487 &dt_idops_func, "void(@, ...)" },
488 { "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0,
489 &dt_idops_type, "void" },
490 { "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0,
491 &dt_idops_type, "id_t" },
492 { "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP,
493 DT_ATTR_STABCMN, DT_VERS_1_0,
494 &dt_idops_type, "uint64_t" },
495 { "tolower", DT_IDENT_FUNC, 0, DIF_SUBR_TOLOWER, DT_ATTR_STABCMN, DT_VERS_1_8,
496 &dt_idops_func, "string(const char *)" },
497 { "toupper", DT_IDENT_FUNC, 0, DIF_SUBR_TOUPPER, DT_ATTR_STABCMN, DT_VERS_1_8,
498 &dt_idops_func, "string(const char *)" },
499 { "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0,
500 &dt_idops_func, "void(@)" },
501 { "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM,
502 DT_ATTR_STABCMN, DT_VERS_1_0,
503 &dt_idops_func, "void(@, size_t, ...)" },
504 { "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN,
505 DT_VERS_1_0, &dt_idops_func, "void(...)" },
506 { "typeref", DT_IDENT_FUNC, 0, DIF_SUBR_TYPEREF, DT_ATTR_STABCMN, DT_VERS_1_1,
507 &dt_idops_func, "uintptr_t *(void *, size_t, string, size_t)" },
508 { "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN,
509 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
510 { "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN,
511 DT_VERS_1_2, &dt_idops_type, "uint64_t" },
512 { "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN,
513 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
514 { "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0,
515 &dt_idops_type, "uid_t" },
516 { "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN,
517 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
518 { "uregs", DT_IDENT_ARRAY, 0, DIF_VAR_UREGS, DT_ATTR_STABCMN, DT_VERS_1_0,
519 &dt_idops_regs, NULL },
520 { "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0,
521 &dt_idops_func, "stack(...)" },
522 { "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH,
523 DT_ATTR_STABCMN, DT_VERS_1_2,
524 &dt_idops_type, "uint32_t" },
525 { "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN,
526 DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
527 { "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP,
528 DT_ATTR_STABCMN, DT_VERS_1_0,
529 &dt_idops_type, "uint64_t" },
530 { "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP,
531 DT_ATTR_STABCMN, DT_VERS_1_0,
532 &dt_idops_type, "int64_t" },
533 #ifdef illumos
534 { "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME,
535 DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
536 #endif
537
538 #ifndef illumos
539 { "cpu", DT_IDENT_SCALAR, 0, DIF_VAR_CPU,
540 DT_ATTR_STABCMN, DT_VERS_1_6_3, &dt_idops_type, "int" },
541 #endif
542
543 { NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL }
544 };
545
546 /*
547 * Tables of ILP32 intrinsic integer and floating-point type templates to use
548 * to populate the dynamic "C" CTF type container.
549 */
550 static const dt_intrinsic_t _dtrace_intrinsics_32[] = {
551 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER },
552 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
553 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER },
554 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
555 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
556 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
557 { "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
558 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
559 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
560 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
561 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
562 { "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
563 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
564 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
565 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER },
566 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER },
567 { "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER },
568 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER },
569 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER },
570 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT },
571 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT },
572 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT },
573 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT },
574 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT },
575 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT },
576 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT },
577 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT },
578 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT },
579 { NULL, { 0, 0, 0 }, 0 }
580 };
581
582 /*
583 * Tables of LP64 intrinsic integer and floating-point type templates to use
584 * to populate the dynamic "C" CTF type container.
585 */
586 static const dt_intrinsic_t _dtrace_intrinsics_64[] = {
587 { "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER },
588 { "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
589 { "unsigned", { 0, 0, 32 }, CTF_K_INTEGER },
590 { "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
591 { "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
592 { "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
593 { "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
594 { "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
595 { "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
596 { "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
597 { "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
598 { "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
599 { "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
600 { "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
601 { "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER },
602 { "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER },
603 { "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER },
604 { "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER },
605 { "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER },
606 { "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT },
607 { "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT },
608 { "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT },
609 { "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT },
610 { "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT },
611 { "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT },
612 { "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT },
613 { "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT },
614 { "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT },
615 { NULL, { 0, 0, 0 }, 0 }
616 };
617
618 /*
619 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container.
620 * These aliases ensure that D definitions can use typical <sys/types.h> names.
621 */
622 static const dt_typedef_t _dtrace_typedefs_32[] = {
623 { "char", "int8_t" },
624 { "short", "int16_t" },
625 { "int", "int32_t" },
626 { "long long", "int64_t" },
627 { "int", "intptr_t" },
628 { "int", "ssize_t" },
629 { "unsigned char", "uint8_t" },
630 { "unsigned short", "uint16_t" },
631 { "unsigned", "uint32_t" },
632 { "unsigned long long", "uint64_t" },
633 { "unsigned char", "uchar_t" },
634 { "unsigned short", "ushort_t" },
635 { "unsigned", "uint_t" },
636 { "unsigned long", "ulong_t" },
637 { "unsigned long long", "u_longlong_t" },
638 { "int", "ptrdiff_t" },
639 { "unsigned", "uintptr_t" },
640 { "unsigned", "size_t" },
641 { "long", "id_t" },
642 { "long", "pid_t" },
643 { NULL, NULL }
644 };
645
646 /*
647 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container.
648 * These aliases ensure that D definitions can use typical <sys/types.h> names.
649 */
650 static const dt_typedef_t _dtrace_typedefs_64[] = {
651 { "char", "int8_t" },
652 { "short", "int16_t" },
653 { "int", "int32_t" },
654 { "long", "int64_t" },
655 { "long", "intptr_t" },
656 { "long", "ssize_t" },
657 { "unsigned char", "uint8_t" },
658 { "unsigned short", "uint16_t" },
659 { "unsigned", "uint32_t" },
660 { "unsigned long", "uint64_t" },
661 { "unsigned char", "uchar_t" },
662 { "unsigned short", "ushort_t" },
663 { "unsigned", "uint_t" },
664 { "unsigned long", "ulong_t" },
665 { "unsigned long long", "u_longlong_t" },
666 { "long", "ptrdiff_t" },
667 { "unsigned long", "uintptr_t" },
668 { "unsigned long", "size_t" },
669 { "int", "id_t" },
670 { "int", "pid_t" },
671 { NULL, NULL }
672 };
673
674 /*
675 * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[]
676 * cache when a new dtrace client open occurs. Values are set by dtrace_open().
677 */
678 static const dt_intdesc_t _dtrace_ints_32[] = {
679 { "int", NULL, CTF_ERR, 0x7fffffffULL },
680 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL },
681 { "long", NULL, CTF_ERR, 0x7fffffffULL },
682 { "unsigned long", NULL, CTF_ERR, 0xffffffffULL },
683 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL },
684 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL }
685 };
686
687 /*
688 * Tables of LP64 integer type templates used to populate the dtp->dt_ints[]
689 * cache when a new dtrace client open occurs. Values are set by dtrace_open().
690 */
691 static const dt_intdesc_t _dtrace_ints_64[] = {
692 { "int", NULL, CTF_ERR, 0x7fffffffULL },
693 { "unsigned int", NULL, CTF_ERR, 0xffffffffULL },
694 { "long", NULL, CTF_ERR, 0x7fffffffffffffffULL },
695 { "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL },
696 { "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL },
697 { "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL }
698 };
699
700 /*
701 * Table of macro variable templates used to populate the macro identifier hash
702 * when a new dtrace client open occurs. Values are set by dtrace_update().
703 */
704 static const dt_ident_t _dtrace_macros[] = {
705 { "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
706 { "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
707 { "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
708 { "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
709 { "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
710 { "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
711 { "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
712 { "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
713 { "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
714 { "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
715 { "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
716 { NULL, 0, 0, 0, { 0, 0, 0 }, 0 }
717 };
718
719 /*
720 * Hard-wired definition string to be compiled and cached every time a new
721 * DTrace library handle is initialized. This string should only be used to
722 * contain definitions that should be present regardless of DTRACE_O_NOLIBS.
723 */
724 static const char _dtrace_hardwire[] = "\
725 inline long NULL = 0; \n\
726 #pragma D binding \"1.0\" NULL\n\
727 ";
728
729 /*
730 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV.
731 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel.
732 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are
733 * relying on the fact that when running dtrace(1M), isaexec will invoke the
734 * binary with the same bitness as the kernel, which is what we want by default
735 * when generating our DIF. The user can override the choice using oflags.
736 */
737 static const dtrace_conf_t _dtrace_conf = {
738 DIF_VERSION, /* dtc_difversion */
739 DIF_DIR_NREGS, /* dtc_difintregs */
740 DIF_DTR_NREGS, /* dtc_diftupregs */
741 CTF_MODEL_NATIVE /* dtc_ctfmodel */
742 };
743
744 const dtrace_attribute_t _dtrace_maxattr = {
745 DTRACE_STABILITY_MAX,
746 DTRACE_STABILITY_MAX,
747 DTRACE_CLASS_MAX
748 };
749
750 const dtrace_attribute_t _dtrace_defattr = {
751 DTRACE_STABILITY_STABLE,
752 DTRACE_STABILITY_STABLE,
753 DTRACE_CLASS_COMMON
754 };
755
756 const dtrace_attribute_t _dtrace_symattr = {
757 DTRACE_STABILITY_PRIVATE,
758 DTRACE_STABILITY_PRIVATE,
759 DTRACE_CLASS_UNKNOWN
760 };
761
762 const dtrace_attribute_t _dtrace_typattr = {
763 DTRACE_STABILITY_PRIVATE,
764 DTRACE_STABILITY_PRIVATE,
765 DTRACE_CLASS_UNKNOWN
766 };
767
768 const dtrace_attribute_t _dtrace_prvattr = {
769 DTRACE_STABILITY_PRIVATE,
770 DTRACE_STABILITY_PRIVATE,
771 DTRACE_CLASS_UNKNOWN
772 };
773
774 const dtrace_pattr_t _dtrace_prvdesc = {
775 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
776 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
777 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
778 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
779 { DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
780 };
781
782 #ifdef illumos
783 const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */
784 const char *_dtrace_defld = "/usr/ccs/bin/ld"; /* default ld(1) to invoke */
785 #else
786 const char *_dtrace_defcpp = "cpp"; /* default cpp(1) to invoke */
787 const char *_dtrace_defld = "ld"; /* default ld(1) to invoke */
788 const char *_dtrace_defobjcopy = "objcopy"; /* default objcopy(1) to invoke */
789 #endif
790
791 const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */
792 #ifdef illumos
793 const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */
794 #else
795 const char *_dtrace_libdir32 = "/usr/lib32/dtrace";
796 const char *_dtrace_provdir = "/dev/dtrace"; /* provider directory */
797 #endif
798
799 int _dtrace_strbuckets = 211; /* default number of hash buckets (prime) */
800 int _dtrace_intbuckets = 256; /* default number of integer buckets (Pof2) */
801 uint_t _dtrace_strsize = 256; /* default size of string intrinsic type */
802 uint_t _dtrace_stkindent = 14; /* default whitespace indent for stack/ustack */
803 uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */
804 uint_t _dtrace_pidlrulim = 8; /* default number of pid handles to cache */
805 size_t _dtrace_bufsize = 512; /* default dt_buf_create() size */
806 int _dtrace_argmax = 32; /* default maximum number of probe arguments */
807
808 int _dtrace_debug = 0; /* debug messages enabled (off) */
809 const char *const _dtrace_version = DT_VERS_STRING; /* API version string */
810 int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */
811
812 typedef struct dt_fdlist {
813 int *df_fds; /* array of provider driver file descriptors */
814 uint_t df_ents; /* number of valid elements in df_fds[] */
815 uint_t df_size; /* size of df_fds[] */
816 } dt_fdlist_t;
817
818 #ifdef illumos
819 #pragma init(_dtrace_init)
820 #else
821 void _dtrace_init(void) __attribute__ ((constructor));
822 #endif
823 void
_dtrace_init(void)824 _dtrace_init(void)
825 {
826 _dtrace_debug = getenv("DTRACE_DEBUG") != NULL;
827
828 for (; _dtrace_rdvers > 0; _dtrace_rdvers--) {
829 if (rd_init(_dtrace_rdvers) == RD_OK)
830 break;
831 }
832 #if defined(__i386__)
833 /* make long doubles 64 bits -sson */
834 (void) fpsetprec(FP_PE);
835 #endif
836 }
837
838 static dtrace_hdl_t *
set_open_errno(dtrace_hdl_t * dtp,int * errp,int err)839 set_open_errno(dtrace_hdl_t *dtp, int *errp, int err)
840 {
841 if (dtp != NULL)
842 dtrace_close(dtp);
843 if (errp != NULL)
844 *errp = err;
845 return (NULL);
846 }
847
848 static void
dt_provmod_open(dt_provmod_t ** provmod,dt_fdlist_t * dfp)849 dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp)
850 {
851 dt_provmod_t *prov;
852 char path[PATH_MAX];
853 int fd;
854 #ifdef illumos
855 struct dirent *dp, *ep;
856 DIR *dirp;
857
858 if ((dirp = opendir(_dtrace_provdir)) == NULL)
859 return; /* failed to open directory; just skip it */
860
861 ep = alloca(sizeof (struct dirent) + PATH_MAX + 1);
862 bzero(ep, sizeof (struct dirent) + PATH_MAX + 1);
863
864 while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) {
865 if (dp->d_name[0] == '.')
866 continue; /* skip "." and ".." */
867
868 if (dfp->df_ents == dfp->df_size) {
869 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16;
870 int *fds = realloc(dfp->df_fds, size * sizeof (int));
871
872 if (fds == NULL)
873 break; /* skip the rest of this directory */
874
875 dfp->df_fds = fds;
876 dfp->df_size = size;
877 }
878
879 (void) snprintf(path, sizeof (path), "%s/%s",
880 _dtrace_provdir, dp->d_name);
881
882 if ((fd = open(path, O_RDONLY)) == -1)
883 continue; /* failed to open driver; just skip it */
884
885 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) ||
886 (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) {
887 free(prov);
888 (void) close(fd);
889 break;
890 }
891
892 (void) strcpy(prov->dp_name, dp->d_name);
893 prov->dp_next = *provmod;
894 *provmod = prov;
895
896 dt_dprintf("opened provider %s\n", dp->d_name);
897 dfp->df_fds[dfp->df_ents++] = fd;
898 }
899
900 (void) closedir(dirp);
901 #else /* !illumos */
902 char *p;
903 char *p1;
904 char *p_providers = NULL;
905 int error;
906 size_t len = 0;
907
908 /*
909 * Loop to allocate/reallocate memory for the string of provider
910 * names and retry:
911 */
912 while(1) {
913 /*
914 * The first time around, get the string length. The next time,
915 * hopefully we've allocated enough memory.
916 */
917 error = sysctlbyname("debug.dtrace.providers",p_providers,&len,NULL,0);
918 if (len == 0)
919 /* No providers? That's strange. Where's dtrace? */
920 break;
921 else if (error == 0 && p_providers == NULL) {
922 /*
923 * Allocate the initial memory which should be enough
924 * unless another provider loads before we have
925 * time to go back and get the string.
926 */
927 if ((p_providers = malloc(len)) == NULL)
928 /* How do we report errors here? */
929 return;
930 } else if (error == -1 && errno == ENOMEM) {
931 /*
932 * The current buffer isn't large enough, so
933 * reallocate it. We normally won't need to do this
934 * because providers aren't being loaded all the time.
935 */
936 if ((p = realloc(p_providers,len)) == NULL)
937 /* How do we report errors here? */
938 return;
939 p_providers = p;
940 } else
941 break;
942 }
943
944 /* Check if we got a string of provider names: */
945 if (error == 0 && len > 0 && p_providers != NULL) {
946 p = p_providers;
947
948 /*
949 * Parse the string containing the space separated
950 * provider names.
951 */
952 while ((p1 = strsep(&p," ")) != NULL) {
953 if (dfp->df_ents == dfp->df_size) {
954 uint_t size = dfp->df_size ? dfp->df_size * 2 : 16;
955 int *fds = realloc(dfp->df_fds, size * sizeof (int));
956
957 if (fds == NULL)
958 break;
959
960 dfp->df_fds = fds;
961 dfp->df_size = size;
962 }
963
964 (void) snprintf(path, sizeof (path), "/dev/dtrace/%s", p1);
965
966 if ((fd = open(path, O_RDONLY)) == -1)
967 continue; /* failed to open driver; just skip it */
968
969 if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) ||
970 (prov->dp_name = malloc(strlen(p1) + 1)) == NULL) {
971 free(prov);
972 (void) close(fd);
973 break;
974 }
975
976 (void) strcpy(prov->dp_name, p1);
977 prov->dp_next = *provmod;
978 *provmod = prov;
979
980 dt_dprintf("opened provider %s\n", p1);
981 dfp->df_fds[dfp->df_ents++] = fd;
982 }
983 }
984 if (p_providers != NULL)
985 free(p_providers);
986 #endif /* illumos */
987 }
988
989 static void
dt_provmod_destroy(dt_provmod_t ** provmod)990 dt_provmod_destroy(dt_provmod_t **provmod)
991 {
992 dt_provmod_t *next, *current;
993
994 for (current = *provmod; current != NULL; current = next) {
995 next = current->dp_next;
996 free(current->dp_name);
997 free(current);
998 }
999
1000 *provmod = NULL;
1001 }
1002
1003 #ifdef illumos
1004 static const char *
dt_get_sysinfo(int cmd,char * buf,size_t len)1005 dt_get_sysinfo(int cmd, char *buf, size_t len)
1006 {
1007 ssize_t rv = sysinfo(cmd, buf, len);
1008 char *p = buf;
1009
1010 if (rv < 0 || rv > len)
1011 (void) snprintf(buf, len, "%s", "Unknown");
1012
1013 while ((p = strchr(p, '.')) != NULL)
1014 *p++ = '_';
1015
1016 return (buf);
1017 }
1018 #endif
1019
1020 static dtrace_hdl_t *
dt_vopen(int version,int flags,int * errp,const dtrace_vector_t * vector,void * arg)1021 dt_vopen(int version, int flags, int *errp,
1022 const dtrace_vector_t *vector, void *arg)
1023 {
1024 dtrace_hdl_t *dtp = NULL;
1025 int dtfd = -1, ftfd = -1, fterr = 0;
1026 dtrace_prog_t *pgp;
1027 dt_module_t *dmp;
1028 dt_provmod_t *provmod = NULL;
1029 int i, err;
1030 struct rlimit rl;
1031
1032 const dt_intrinsic_t *dinp;
1033 const dt_typedef_t *dtyp;
1034 const dt_ident_t *idp;
1035
1036 dtrace_typeinfo_t dtt;
1037 ctf_funcinfo_t ctc;
1038 ctf_arinfo_t ctr;
1039
1040 dt_fdlist_t df = { NULL, 0, 0 };
1041
1042 char isadef[32], utsdef[32];
1043 char s1[64], s2[64];
1044
1045 if (version <= 0)
1046 return (set_open_errno(dtp, errp, EINVAL));
1047
1048 if (version > DTRACE_VERSION)
1049 return (set_open_errno(dtp, errp, EDT_VERSION));
1050
1051 if (version < DTRACE_VERSION) {
1052 /*
1053 * Currently, increasing the library version number is used to
1054 * denote a binary incompatible change. That is, a consumer
1055 * of the library cannot run on a version of the library with
1056 * a higher DTRACE_VERSION number than the consumer compiled
1057 * against. Once the library API has been committed to,
1058 * backwards binary compatibility will be required; at that
1059 * time, this check should change to return EDT_OVERSION only
1060 * if the specified version number is less than the version
1061 * number at the time of interface commitment.
1062 */
1063 return (set_open_errno(dtp, errp, EDT_OVERSION));
1064 }
1065
1066 if (flags & ~DTRACE_O_MASK)
1067 return (set_open_errno(dtp, errp, EINVAL));
1068
1069 if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32))
1070 return (set_open_errno(dtp, errp, EINVAL));
1071
1072 if (vector == NULL && arg != NULL)
1073 return (set_open_errno(dtp, errp, EINVAL));
1074
1075 if (elf_version(EV_CURRENT) == EV_NONE)
1076 return (set_open_errno(dtp, errp, EDT_ELFVERSION));
1077
1078 if (vector != NULL || (flags & DTRACE_O_NODEV))
1079 goto alloc; /* do not attempt to open dtrace device */
1080
1081 /*
1082 * Before we get going, crank our limit on file descriptors up to the
1083 * hard limit. This is to allow for the fact that libproc keeps file
1084 * descriptors to objects open for the lifetime of the proc handle;
1085 * without raising our hard limit, we would have an acceptably small
1086 * bound on the number of processes that we could concurrently
1087 * instrument with the pid provider.
1088 */
1089 if (getrlimit(RLIMIT_NOFILE, &rl) == 0) {
1090 rl.rlim_cur = rl.rlim_max;
1091 (void) setrlimit(RLIMIT_NOFILE, &rl);
1092 }
1093
1094 /*
1095 * Get the device path of each of the providers. We hold them open
1096 * in the df.df_fds list until we open the DTrace driver itself,
1097 * allowing us to see all of the probes provided on this system. Once
1098 * we have the DTrace driver open, we can safely close all the providers
1099 * now that they have registered with the framework.
1100 */
1101 dt_provmod_open(&provmod, &df);
1102
1103 dtfd = open("/dev/dtrace/dtrace", O_RDWR);
1104 err = errno; /* save errno from opening dtfd */
1105 #if defined(__FreeBSD__)
1106 /*
1107 * Automatically load the 'dtraceall' module if we couldn't open the
1108 * char device.
1109 */
1110 if (err == ENOENT && modfind("dtraceall") < 0) {
1111 kldload("dtraceall"); /* ignore the error */
1112 dtfd = open("/dev/dtrace/dtrace", O_RDWR);
1113 err = errno;
1114 }
1115 #endif
1116 #ifdef illumos
1117 ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR);
1118 #else
1119 ftfd = open("/dev/dtrace/fasttrap", O_RDWR);
1120 #endif
1121 fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */
1122
1123 while (df.df_ents-- != 0)
1124 (void) close(df.df_fds[df.df_ents]);
1125
1126 free(df.df_fds);
1127
1128 /*
1129 * If we failed to open the dtrace device, fail dtrace_open().
1130 * We convert some kernel errnos to custom libdtrace errnos to
1131 * improve the resulting message from the usual strerror().
1132 */
1133 if (dtfd == -1) {
1134 dt_provmod_destroy(&provmod);
1135 switch (err) {
1136 case ENOENT:
1137 err = EDT_NOENT;
1138 break;
1139 case EBUSY:
1140 err = EDT_BUSY;
1141 break;
1142 case EACCES:
1143 err = EDT_ACCESS;
1144 break;
1145 }
1146 return (set_open_errno(dtp, errp, err));
1147 }
1148
1149 (void) fcntl(dtfd, F_SETFD, FD_CLOEXEC);
1150 (void) fcntl(ftfd, F_SETFD, FD_CLOEXEC);
1151
1152 alloc:
1153 if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL)
1154 return (set_open_errno(dtp, errp, EDT_NOMEM));
1155
1156 bzero(dtp, sizeof (dtrace_hdl_t));
1157 dtp->dt_oflags = flags;
1158 #ifdef illumos
1159 dtp->dt_prcmode = DT_PROC_STOP_PREINIT;
1160 #else
1161 dtp->dt_prcmode = DT_PROC_STOP_POSTINIT;
1162 #endif
1163 dtp->dt_linkmode = DT_LINK_KERNEL;
1164 dtp->dt_linktype = DT_LTYP_ELF;
1165 dtp->dt_xlatemode = DT_XL_STATIC;
1166 dtp->dt_stdcmode = DT_STDC_XA;
1167 dtp->dt_encoding = DT_ENCODING_UNSET;
1168 dtp->dt_version = version;
1169 dtp->dt_fd = dtfd;
1170 dtp->dt_ftfd = ftfd;
1171 dtp->dt_fterr = fterr;
1172 dtp->dt_cdefs_fd = -1;
1173 dtp->dt_ddefs_fd = -1;
1174 #ifdef illumos
1175 dtp->dt_stdout_fd = -1;
1176 #else
1177 dtp->dt_freopen_fp = NULL;
1178 #endif
1179 dtp->dt_modbuckets = _dtrace_strbuckets;
1180 dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *));
1181 #ifdef __FreeBSD__
1182 dtp->dt_kmods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *));
1183 #endif
1184 dtp->dt_provbuckets = _dtrace_strbuckets;
1185 dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *));
1186 dt_proc_hash_create(dtp);
1187 dtp->dt_vmax = DT_VERS_LATEST;
1188 dtp->dt_cpp_path = strdup(_dtrace_defcpp);
1189 dtp->dt_cpp_argv = malloc(sizeof (char *));
1190 dtp->dt_cpp_argc = 1;
1191 dtp->dt_cpp_args = 1;
1192 dtp->dt_ld_path = strdup(_dtrace_defld);
1193 #ifdef __FreeBSD__
1194 dtp->dt_objcopy_path = strdup(_dtrace_defobjcopy);
1195 #endif
1196 dtp->dt_provmod = provmod;
1197 dtp->dt_vector = vector;
1198 dtp->dt_varg = arg;
1199 dt_dof_init(dtp);
1200 (void) uname(&dtp->dt_uts);
1201
1202 if (dtp->dt_mods == NULL || dtp->dt_provs == NULL ||
1203 dtp->dt_procs == NULL || dtp->dt_ld_path == NULL ||
1204 #ifdef __FreeBSD__
1205 dtp->dt_kmods == NULL ||
1206 dtp->dt_objcopy_path == NULL ||
1207 #endif
1208 dtp->dt_cpp_path == NULL || dtp->dt_cpp_argv == NULL)
1209 return (set_open_errno(dtp, errp, EDT_NOMEM));
1210
1211 for (i = 0; i < DTRACEOPT_MAX; i++)
1212 dtp->dt_options[i] = DTRACEOPT_UNSET;
1213
1214 dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path);
1215
1216 #ifdef illumos
1217 (void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u",
1218 (uint_t)(sizeof (void *) * NBBY));
1219
1220 (void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s",
1221 dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)),
1222 dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2)));
1223
1224 if (dt_cpp_add_arg(dtp, "-D__sun") == NULL ||
1225 dt_cpp_add_arg(dtp, "-D__unix") == NULL ||
1226 dt_cpp_add_arg(dtp, "-D__SVR4") == NULL ||
1227 dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL ||
1228 dt_cpp_add_arg(dtp, isadef) == NULL ||
1229 dt_cpp_add_arg(dtp, utsdef) == NULL)
1230 return (set_open_errno(dtp, errp, EDT_NOMEM));
1231 #endif
1232
1233 if (flags & DTRACE_O_NODEV)
1234 bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf));
1235 else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0)
1236 return (set_open_errno(dtp, errp, errno));
1237
1238 if (flags & DTRACE_O_LP64)
1239 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64;
1240 else if (flags & DTRACE_O_ILP32)
1241 dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32;
1242
1243 #ifdef __sparc
1244 /*
1245 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h>
1246 * and __sparcv9 is defined if we are doing a 64-bit compile.
1247 */
1248 if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL)
1249 return (set_open_errno(dtp, errp, EDT_NOMEM));
1250
1251 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 &&
1252 dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL)
1253 return (set_open_errno(dtp, errp, EDT_NOMEM));
1254 #endif
1255
1256 #ifdef illumos
1257 #ifdef __x86
1258 /*
1259 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit
1260 * compiles and __amd64 is defined for 64-bit compiles. Unlike SPARC,
1261 * they are defined exclusive of one another (see PSARC 2004/619).
1262 */
1263 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) {
1264 if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL)
1265 return (set_open_errno(dtp, errp, EDT_NOMEM));
1266 } else {
1267 if (dt_cpp_add_arg(dtp, "-D__i386") == NULL)
1268 return (set_open_errno(dtp, errp, EDT_NOMEM));
1269 }
1270 #endif
1271 #else
1272 #if defined(__amd64__) || defined(__i386__)
1273 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) {
1274 if (dt_cpp_add_arg(dtp, "-m64") == NULL)
1275 return (set_open_errno(dtp, errp, EDT_NOMEM));
1276 } else {
1277 if (dt_cpp_add_arg(dtp, "-m32") == NULL)
1278 return (set_open_errno(dtp, errp, EDT_NOMEM));
1279 }
1280 #endif
1281 #endif
1282
1283 if (dtp->dt_conf.dtc_difversion < DIF_VERSION)
1284 return (set_open_errno(dtp, errp, EDT_DIFVERS));
1285
1286 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32)
1287 bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32));
1288 else
1289 bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64));
1290
1291 /*
1292 * On FreeBSD the kernel module name can't be hard-coded. The
1293 * 'kern.bootfile' sysctl value tells us exactly which file is being
1294 * used as the kernel.
1295 */
1296 #ifndef illumos
1297 {
1298 char bootfile[MAXPATHLEN];
1299 char *p;
1300 int i;
1301 size_t len = sizeof(bootfile);
1302
1303 /* This call shouldn't fail, but use a default just in case. */
1304 if (sysctlbyname("kern.bootfile", bootfile, &len, NULL, 0) != 0)
1305 strlcpy(bootfile, "kernel", sizeof(bootfile));
1306
1307 if ((p = strrchr(bootfile, '/')) != NULL)
1308 p++;
1309 else
1310 p = bootfile;
1311
1312 /*
1313 * Format the global variables based on the kernel module name.
1314 */
1315 snprintf(curthread_str, sizeof(curthread_str), "%s`struct thread *",p);
1316 snprintf(intmtx_str, sizeof(intmtx_str), "int(%s`struct mtx *)",p);
1317 snprintf(threadmtx_str, sizeof(threadmtx_str), "struct thread *(%s`struct mtx *)",p);
1318 snprintf(rwlock_str, sizeof(rwlock_str), "int(%s`struct rwlock *)",p);
1319 snprintf(sxlock_str, sizeof(sxlock_str), "int(%s`struct sxlock *)",p);
1320 }
1321 #endif
1322
1323 dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX);
1324 dtp->dt_aggs = dt_idhash_create("aggregation", NULL,
1325 DTRACE_AGGVARIDNONE + 1, UINT_MAX);
1326
1327 dtp->dt_globals = dt_idhash_create("global", _dtrace_globals,
1328 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX);
1329
1330 dtp->dt_tls = dt_idhash_create("thread local", NULL,
1331 DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX);
1332
1333 if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL ||
1334 dtp->dt_globals == NULL || dtp->dt_tls == NULL)
1335 return (set_open_errno(dtp, errp, EDT_NOMEM));
1336
1337 /*
1338 * Populate the dt_macros identifier hash table by hand: we can't use
1339 * the dt_idhash_populate() mechanism because we're not yet compiling
1340 * and dtrace_update() needs to immediately reference these idents.
1341 */
1342 for (idp = _dtrace_macros; idp->di_name != NULL; idp++) {
1343 if (dt_idhash_insert(dtp->dt_macros, idp->di_name,
1344 idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr,
1345 idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw,
1346 idp->di_iarg, 0) == NULL)
1347 return (set_open_errno(dtp, errp, EDT_NOMEM));
1348 }
1349
1350 /*
1351 * Update the module list using /system/object and load the values for
1352 * the macro variable definitions according to the current process.
1353 */
1354 dtrace_update(dtp);
1355
1356 /*
1357 * Select the intrinsics and typedefs we want based on the data model.
1358 * The intrinsics are under "C". The typedefs are added under "D".
1359 */
1360 if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) {
1361 dinp = _dtrace_intrinsics_32;
1362 dtyp = _dtrace_typedefs_32;
1363 } else {
1364 dinp = _dtrace_intrinsics_64;
1365 dtyp = _dtrace_typedefs_64;
1366 }
1367
1368 /*
1369 * Create a dynamic CTF container under the "C" scope for intrinsic
1370 * types and types defined in ANSI-C header files that are included.
1371 */
1372 if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL)
1373 return (set_open_errno(dtp, errp, EDT_NOMEM));
1374
1375 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL)
1376 return (set_open_errno(dtp, errp, EDT_CTF));
1377
1378 dt_dprintf("created CTF container for %s (%p)\n",
1379 dmp->dm_name, (void *)dmp->dm_ctfp);
1380
1381 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel);
1382 ctf_setspecific(dmp->dm_ctfp, dmp);
1383
1384 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */
1385 dmp->dm_modid = -1; /* no module ID */
1386
1387 /*
1388 * Fill the dynamic "C" CTF container with all of the intrinsic
1389 * integer and floating-point types appropriate for this data model.
1390 */
1391 for (; dinp->din_name != NULL; dinp++) {
1392 if (dinp->din_kind == CTF_K_INTEGER) {
1393 err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT,
1394 dinp->din_name, &dinp->din_data);
1395 } else {
1396 err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT,
1397 dinp->din_name, &dinp->din_data);
1398 }
1399
1400 if (err == CTF_ERR) {
1401 dt_dprintf("failed to add %s to C container: %s\n",
1402 dinp->din_name, ctf_errmsg(
1403 ctf_errno(dmp->dm_ctfp)));
1404 return (set_open_errno(dtp, errp, EDT_CTF));
1405 }
1406 }
1407
1408 if (ctf_update(dmp->dm_ctfp) != 0) {
1409 dt_dprintf("failed to update C container: %s\n",
1410 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1411 return (set_open_errno(dtp, errp, EDT_CTF));
1412 }
1413
1414 /*
1415 * Add intrinsic pointer types that are needed to initialize printf
1416 * format dictionary types (see table in dt_printf.c).
1417 */
1418 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT,
1419 ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1420
1421 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT,
1422 ctf_lookup_by_name(dmp->dm_ctfp, "char"));
1423
1424 (void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT,
1425 ctf_lookup_by_name(dmp->dm_ctfp, "int"));
1426
1427 if (ctf_update(dmp->dm_ctfp) != 0) {
1428 dt_dprintf("failed to update C container: %s\n",
1429 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1430 return (set_open_errno(dtp, errp, EDT_CTF));
1431 }
1432
1433 /*
1434 * Create a dynamic CTF container under the "D" scope for types that
1435 * are defined by the D program itself or on-the-fly by the D compiler.
1436 * The "D" CTF container is a child of the "C" CTF container.
1437 */
1438 if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL)
1439 return (set_open_errno(dtp, errp, EDT_NOMEM));
1440
1441 if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL)
1442 return (set_open_errno(dtp, errp, EDT_CTF));
1443
1444 dt_dprintf("created CTF container for %s (%p)\n",
1445 dmp->dm_name, (void *)dmp->dm_ctfp);
1446
1447 (void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel);
1448 ctf_setspecific(dmp->dm_ctfp, dmp);
1449
1450 dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */
1451 dmp->dm_modid = -1; /* no module ID */
1452
1453 if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) {
1454 dt_dprintf("failed to import D parent container: %s\n",
1455 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1456 return (set_open_errno(dtp, errp, EDT_CTF));
1457 }
1458
1459 /*
1460 * Fill the dynamic "D" CTF container with all of the built-in typedefs
1461 * that we need to use for our D variable and function definitions.
1462 * This ensures that basic inttypes.h names are always available to us.
1463 */
1464 for (; dtyp->dty_src != NULL; dtyp++) {
1465 if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1466 dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp,
1467 dtyp->dty_src)) == CTF_ERR) {
1468 dt_dprintf("failed to add typedef %s %s to D "
1469 "container: %s", dtyp->dty_src, dtyp->dty_dst,
1470 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1471 return (set_open_errno(dtp, errp, EDT_CTF));
1472 }
1473 }
1474
1475 /*
1476 * Insert a CTF ID corresponding to a pointer to a type of kind
1477 * CTF_K_FUNCTION we can use in the compiler for function pointers.
1478 * CTF treats all function pointers as "int (*)()" so we only need one.
1479 */
1480 ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int");
1481 ctc.ctc_argc = 0;
1482 ctc.ctc_flags = 0;
1483
1484 dtp->dt_type_func = ctf_add_function(dmp->dm_ctfp,
1485 CTF_ADD_ROOT, &ctc, NULL);
1486
1487 dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp,
1488 CTF_ADD_ROOT, dtp->dt_type_func);
1489
1490 /*
1491 * We also insert CTF definitions for the special D intrinsic types
1492 * string and <DYN> into the D container. The string type is added
1493 * as a typedef of char[n]. The <DYN> type is an alias for void.
1494 * We compare types to these special CTF ids throughout the compiler.
1495 */
1496 ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char");
1497 ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long");
1498 ctr.ctr_nelems = _dtrace_strsize;
1499
1500 dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1501 "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr));
1502
1503 dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1504 "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1505
1506 dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1507 "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1508
1509 dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1510 "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1511
1512 dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1513 "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1514
1515 if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR ||
1516 dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR ||
1517 dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR ||
1518 dtp->dt_type_usymaddr == CTF_ERR) {
1519 dt_dprintf("failed to add intrinsic to D container: %s\n",
1520 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1521 return (set_open_errno(dtp, errp, EDT_CTF));
1522 }
1523
1524 if (ctf_update(dmp->dm_ctfp) != 0) {
1525 dt_dprintf("failed update D container: %s\n",
1526 ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1527 return (set_open_errno(dtp, errp, EDT_CTF));
1528 }
1529
1530 /*
1531 * Initialize the integer description table used to convert integer
1532 * constants to the appropriate types. Refer to the comments above
1533 * dt_node_int() for a complete description of how this table is used.
1534 */
1535 for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) {
1536 if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY,
1537 dtp->dt_ints[i].did_name, &dtt) != 0) {
1538 dt_dprintf("failed to lookup integer type %s: %s\n",
1539 dtp->dt_ints[i].did_name,
1540 dtrace_errmsg(dtp, dtrace_errno(dtp)));
1541 return (set_open_errno(dtp, errp, dtp->dt_errno));
1542 }
1543 dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp;
1544 dtp->dt_ints[i].did_type = dtt.dtt_type;
1545 }
1546
1547 /*
1548 * Now that we've created the "C" and "D" containers, move them to the
1549 * start of the module list so that these types and symbols are found
1550 * first (for stability) when iterating through the module list.
1551 */
1552 dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs);
1553 dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs);
1554
1555 dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs);
1556 dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs);
1557
1558 if (dt_pfdict_create(dtp) == -1)
1559 return (set_open_errno(dtp, errp, dtp->dt_errno));
1560
1561 /*
1562 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default
1563 * because without /dev/dtrace open, we will not be able to load the
1564 * names and attributes of any providers or probes from the kernel.
1565 */
1566 if (flags & DTRACE_O_NODEV)
1567 dtp->dt_cflags |= DTRACE_C_ZDEFS;
1568
1569 /*
1570 * Load hard-wired inlines into the definition cache by calling the
1571 * compiler on the raw definition string defined above.
1572 */
1573 if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire,
1574 DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) {
1575 dt_dprintf("failed to load hard-wired definitions: %s\n",
1576 dtrace_errmsg(dtp, dtrace_errno(dtp)));
1577 return (set_open_errno(dtp, errp, EDT_HARDWIRE));
1578 }
1579
1580 dt_program_destroy(dtp, pgp);
1581
1582 /*
1583 * Set up the default DTrace library path. Once set, the next call to
1584 * dt_compile() will compile all the libraries. We intentionally defer
1585 * library processing to improve overhead for clients that don't ever
1586 * compile, and to provide better error reporting (because the full
1587 * reporting of compiler errors requires dtrace_open() to succeed).
1588 */
1589 #ifdef __FreeBSD__
1590 #ifdef __LP64__
1591 if ((dtp->dt_oflags & DTRACE_O_ILP32) != 0) {
1592 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir32) != 0)
1593 return (set_open_errno(dtp, errp, dtp->dt_errno));
1594 }
1595 #endif
1596 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0)
1597 return (set_open_errno(dtp, errp, dtp->dt_errno));
1598 #else
1599 if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0)
1600 return (set_open_errno(dtp, errp, dtp->dt_errno));
1601 #endif
1602
1603 return (dtp);
1604 }
1605
1606 dtrace_hdl_t *
dtrace_open(int version,int flags,int * errp)1607 dtrace_open(int version, int flags, int *errp)
1608 {
1609 return (dt_vopen(version, flags, errp, NULL, NULL));
1610 }
1611
1612 dtrace_hdl_t *
dtrace_vopen(int version,int flags,int * errp,const dtrace_vector_t * vector,void * arg)1613 dtrace_vopen(int version, int flags, int *errp,
1614 const dtrace_vector_t *vector, void *arg)
1615 {
1616 return (dt_vopen(version, flags, errp, vector, arg));
1617 }
1618
1619 void
dtrace_close(dtrace_hdl_t * dtp)1620 dtrace_close(dtrace_hdl_t *dtp)
1621 {
1622 dt_ident_t *idp, *ndp;
1623 dt_module_t *dmp;
1624 dt_provider_t *pvp;
1625 dtrace_prog_t *pgp;
1626 dt_xlator_t *dxp;
1627 dt_dirpath_t *dirp;
1628 #ifdef __FreeBSD__
1629 dt_kmodule_t *dkm;
1630 uint_t h;
1631 #endif
1632 int i;
1633
1634 if (dtp->dt_procs != NULL)
1635 dt_proc_hash_destroy(dtp);
1636
1637 while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL)
1638 dt_program_destroy(dtp, pgp);
1639
1640 while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL)
1641 dt_xlator_destroy(dtp, dxp);
1642
1643 dt_free(dtp, dtp->dt_xlatormap);
1644
1645 for (idp = dtp->dt_externs; idp != NULL; idp = ndp) {
1646 ndp = idp->di_next;
1647 dt_ident_destroy(idp);
1648 }
1649
1650 if (dtp->dt_macros != NULL)
1651 dt_idhash_destroy(dtp->dt_macros);
1652 if (dtp->dt_aggs != NULL)
1653 dt_idhash_destroy(dtp->dt_aggs);
1654 if (dtp->dt_globals != NULL)
1655 dt_idhash_destroy(dtp->dt_globals);
1656 if (dtp->dt_tls != NULL)
1657 dt_idhash_destroy(dtp->dt_tls);
1658
1659 #ifdef __FreeBSD__
1660 for (h = 0; h < dtp->dt_modbuckets; h++)
1661 while ((dkm = dtp->dt_kmods[h]) != NULL) {
1662 dtp->dt_kmods[h] = dkm->dkm_next;
1663 free(dkm->dkm_name);
1664 free(dkm);
1665 }
1666 #endif
1667
1668 while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL)
1669 dt_module_destroy(dtp, dmp);
1670
1671 while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL)
1672 dt_provider_destroy(dtp, pvp);
1673
1674 if (dtp->dt_fd != -1)
1675 (void) close(dtp->dt_fd);
1676 if (dtp->dt_ftfd != -1)
1677 (void) close(dtp->dt_ftfd);
1678 if (dtp->dt_cdefs_fd != -1)
1679 (void) close(dtp->dt_cdefs_fd);
1680 if (dtp->dt_ddefs_fd != -1)
1681 (void) close(dtp->dt_ddefs_fd);
1682 #ifdef illumos
1683 if (dtp->dt_stdout_fd != -1)
1684 (void) close(dtp->dt_stdout_fd);
1685 #else
1686 if (dtp->dt_freopen_fp != NULL)
1687 (void) fclose(dtp->dt_freopen_fp);
1688 #endif
1689
1690 dt_epid_destroy(dtp);
1691 dt_aggid_destroy(dtp);
1692 dt_format_destroy(dtp);
1693 dt_strdata_destroy(dtp);
1694 dt_buffered_destroy(dtp);
1695 dt_aggregate_destroy(dtp);
1696 dt_pfdict_destroy(dtp);
1697 dt_provmod_destroy(&dtp->dt_provmod);
1698 dt_dof_fini(dtp);
1699
1700 for (i = 1; i < dtp->dt_cpp_argc; i++)
1701 free(dtp->dt_cpp_argv[i]);
1702
1703 while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) {
1704 dt_list_delete(&dtp->dt_lib_path, dirp);
1705 free(dirp->dir_path);
1706 free(dirp);
1707 }
1708
1709 free(dtp->dt_cpp_argv);
1710 free(dtp->dt_cpp_path);
1711 free(dtp->dt_ld_path);
1712 #ifdef __FreeBSD__
1713 free(dtp->dt_objcopy_path);
1714 #endif
1715
1716 free(dtp->dt_mods);
1717 #ifdef __FreeBSD__
1718 free(dtp->dt_kmods);
1719 #endif
1720 free(dtp->dt_provs);
1721 free(dtp);
1722 }
1723
1724 int
dtrace_provider_modules(dtrace_hdl_t * dtp,const char ** mods,int nmods)1725 dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods)
1726 {
1727 dt_provmod_t *prov;
1728 int i = 0;
1729
1730 for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) {
1731 if (i < nmods)
1732 mods[i] = prov->dp_name;
1733 }
1734
1735 return (i);
1736 }
1737
1738 int
dtrace_ctlfd(dtrace_hdl_t * dtp)1739 dtrace_ctlfd(dtrace_hdl_t *dtp)
1740 {
1741 return (dtp->dt_fd);
1742 }
1743