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) 2018, Joyent, Inc.
25 * Copyright (c) 2012, 2016 by Delphix. All rights reserved.
26 */
27
28#include <sys/types.h>
29#include <sys/modctl.h>
30#include <sys/systeminfo.h>
31#include <sys/resource.h>
32
33#include <libelf.h>
34#include <strings.h>
35#include <alloca.h>
36#include <limits.h>
37#include <unistd.h>
38#include <stdlib.h>
39#include <stdio.h>
40#include <fcntl.h>
41#include <errno.h>
42#include <assert.h>
43
44#define	_POSIX_PTHREAD_SEMANTICS
45#include <dirent.h>
46#undef	_POSIX_PTHREAD_SEMANTICS
47
48#include <dt_impl.h>
49#include <dt_program.h>
50#include <dt_module.h>
51#include <dt_printf.h>
52#include <dt_string.h>
53#include <dt_provider.h>
54
55/*
56 * Stability and versioning definitions.  These #defines are used in the tables
57 * of identifiers below to fill in the attribute and version fields associated
58 * with each identifier.  The DT_ATTR_* macros are a convenience to permit more
59 * concise declarations of common attributes such as Stable/Stable/Common.  The
60 * DT_VERS_* macros declare the encoded integer values of all versions used so
61 * far.  DT_VERS_LATEST must correspond to the latest version value among all
62 * versions exported by the D compiler.  DT_VERS_STRING must be an ASCII string
63 * that contains DT_VERS_LATEST within it along with any suffixes (e.g. Beta).
64 * You must update DT_VERS_LATEST and DT_VERS_STRING when adding a new version,
65 * and then add the new version to the _dtrace_versions[] array declared below.
66 * Refer to the Solaris Dynamic Tracing Guide Stability and Versioning chapters
67 * respectively for an explanation of these DTrace features and their values.
68 *
69 * NOTE: Although the DTrace versioning scheme supports the labeling and
70 *       introduction of incompatible changes (e.g. dropping an interface in a
71 *       major release), the libdtrace code does not currently support this.
72 *       All versions are assumed to strictly inherit from one another.  If
73 *       we ever need to provide divergent interfaces, this will need work.
74 */
75#define	DT_ATTR_STABCMN	{ DTRACE_STABILITY_STABLE, \
76	DTRACE_STABILITY_STABLE, DTRACE_CLASS_COMMON }
77
78#define	DT_ATTR_EVOLCMN { DTRACE_STABILITY_EVOLVING, \
79	DTRACE_STABILITY_EVOLVING, DTRACE_CLASS_COMMON \
80}
81
82/*
83 * The version number should be increased for every customer visible release
84 * of DTrace. The major number should be incremented when a fundamental
85 * change has been made that would affect all consumers, and would reflect
86 * sweeping changes to DTrace or the D language. The minor number should be
87 * incremented when a change is introduced that could break scripts that had
88 * previously worked; for example, adding a new built-in variable could break
89 * a script which was already using that identifier. The micro number should
90 * be changed when introducing functionality changes or major bug fixes that
91 * do not affect backward compatibility -- this is merely to make capabilities
92 * easily determined from the version number. Minor bugs do not require any
93 * modification to the version number.
94 */
95#define	DT_VERS_1_0	DT_VERSION_NUMBER(1, 0, 0)
96#define	DT_VERS_1_1	DT_VERSION_NUMBER(1, 1, 0)
97#define	DT_VERS_1_2	DT_VERSION_NUMBER(1, 2, 0)
98#define	DT_VERS_1_2_1	DT_VERSION_NUMBER(1, 2, 1)
99#define	DT_VERS_1_2_2	DT_VERSION_NUMBER(1, 2, 2)
100#define	DT_VERS_1_3	DT_VERSION_NUMBER(1, 3, 0)
101#define	DT_VERS_1_4	DT_VERSION_NUMBER(1, 4, 0)
102#define	DT_VERS_1_4_1	DT_VERSION_NUMBER(1, 4, 1)
103#define	DT_VERS_1_5	DT_VERSION_NUMBER(1, 5, 0)
104#define	DT_VERS_1_6	DT_VERSION_NUMBER(1, 6, 0)
105#define	DT_VERS_1_6_1	DT_VERSION_NUMBER(1, 6, 1)
106#define	DT_VERS_1_6_2	DT_VERSION_NUMBER(1, 6, 2)
107#define	DT_VERS_1_6_3	DT_VERSION_NUMBER(1, 6, 3)
108#define	DT_VERS_1_7	DT_VERSION_NUMBER(1, 7, 0)
109#define	DT_VERS_1_7_1	DT_VERSION_NUMBER(1, 7, 1)
110#define	DT_VERS_1_8	DT_VERSION_NUMBER(1, 8, 0)
111#define	DT_VERS_1_8_1	DT_VERSION_NUMBER(1, 8, 1)
112#define	DT_VERS_1_9	DT_VERSION_NUMBER(1, 9, 0)
113#define	DT_VERS_1_9_1	DT_VERSION_NUMBER(1, 9, 1)
114#define	DT_VERS_1_10	DT_VERSION_NUMBER(1, 10, 0)
115#define	DT_VERS_1_11	DT_VERSION_NUMBER(1, 11, 0)
116#define	DT_VERS_1_12	DT_VERSION_NUMBER(1, 12, 0)
117#define	DT_VERS_1_12_1	DT_VERSION_NUMBER(1, 12, 1)
118#define	DT_VERS_1_13	DT_VERSION_NUMBER(1, 13, 0)
119#define	DT_VERS_1_14	DT_VERSION_NUMBER(1, 14, 0)
120#define	DT_VERS_LATEST	DT_VERS_1_14
121#define	DT_VERS_STRING	"Sun D 1.14"
122
123const dt_version_t _dtrace_versions[] = {
124	DT_VERS_1_0,	/* D API 1.0.0 (PSARC 2001/466) Solaris 10 FCS */
125	DT_VERS_1_1,	/* D API 1.1.0 Solaris Express 6/05 */
126	DT_VERS_1_2,	/* D API 1.2.0 Solaris 10 Update 1 */
127	DT_VERS_1_2_1,	/* D API 1.2.1 Solaris Express 4/06 */
128	DT_VERS_1_2_2,	/* D API 1.2.2 Solaris Express 6/06 */
129	DT_VERS_1_3,	/* D API 1.3 Solaris Express 10/06 */
130	DT_VERS_1_4,	/* D API 1.4 Solaris Express 2/07 */
131	DT_VERS_1_4_1,	/* D API 1.4.1 Solaris Express 4/07 */
132	DT_VERS_1_5,	/* D API 1.5 Solaris Express 7/07 */
133	DT_VERS_1_6,	/* D API 1.6 */
134	DT_VERS_1_6_1,	/* D API 1.6.1 */
135	DT_VERS_1_6_2,	/* D API 1.6.2 */
136	DT_VERS_1_6_3,	/* D API 1.6.3 */
137	DT_VERS_1_7,	/* D API 1.7 */
138	DT_VERS_1_7_1,	/* D API 1.7.1 */
139	DT_VERS_1_8,	/* D API 1.8 */
140	DT_VERS_1_8_1,	/* D API 1.8.1 */
141	DT_VERS_1_9,	/* D API 1.9 */
142	DT_VERS_1_9_1,	/* D API 1.9.1 */
143	DT_VERS_1_10,	/* D API 1.10 */
144	DT_VERS_1_11,	/* D API 1.11 */
145	DT_VERS_1_12,	/* D API 1.12 */
146	DT_VERS_1_12_1,	/* D API 1.12.1 */
147	DT_VERS_1_13,	/* D API 1.13 */
148	DT_VERS_1_14,	/* D API 1.14 */
149	0
150};
151
152/*
153 * Table of global identifiers.  This is used to populate the global identifier
154 * hash when a new dtrace client open occurs.  For more info see dt_ident.h.
155 * The global identifiers that represent functions use the dt_idops_func ops
156 * and specify the private data pointer as a prototype string which is parsed
157 * when the identifier is first encountered.  These prototypes look like ANSI
158 * C function prototypes except that the special symbol "@" can be used as a
159 * wildcard to represent a single parameter of any type (i.e. any dt_node_t).
160 * The standard "..." notation can also be used to represent varargs.  An empty
161 * parameter list is taken to mean void (that is, no arguments are permitted).
162 * A parameter enclosed in square brackets (e.g. "[int]") denotes an optional
163 * argument.
164 */
165static const dt_ident_t _dtrace_globals[] = {
166{ "alloca", DT_IDENT_FUNC, 0, DIF_SUBR_ALLOCA, DT_ATTR_STABCMN, DT_VERS_1_0,
167	&dt_idops_func, "void *(size_t)" },
168{ "arg0", DT_IDENT_SCALAR, 0, DIF_VAR_ARG0, DT_ATTR_STABCMN, DT_VERS_1_0,
169	&dt_idops_type, "int64_t" },
170{ "arg1", DT_IDENT_SCALAR, 0, DIF_VAR_ARG1, DT_ATTR_STABCMN, DT_VERS_1_0,
171	&dt_idops_type, "int64_t" },
172{ "arg2", DT_IDENT_SCALAR, 0, DIF_VAR_ARG2, DT_ATTR_STABCMN, DT_VERS_1_0,
173	&dt_idops_type, "int64_t" },
174{ "arg3", DT_IDENT_SCALAR, 0, DIF_VAR_ARG3, DT_ATTR_STABCMN, DT_VERS_1_0,
175	&dt_idops_type, "int64_t" },
176{ "arg4", DT_IDENT_SCALAR, 0, DIF_VAR_ARG4, DT_ATTR_STABCMN, DT_VERS_1_0,
177	&dt_idops_type, "int64_t" },
178{ "arg5", DT_IDENT_SCALAR, 0, DIF_VAR_ARG5, DT_ATTR_STABCMN, DT_VERS_1_0,
179	&dt_idops_type, "int64_t" },
180{ "arg6", DT_IDENT_SCALAR, 0, DIF_VAR_ARG6, DT_ATTR_STABCMN, DT_VERS_1_0,
181	&dt_idops_type, "int64_t" },
182{ "arg7", DT_IDENT_SCALAR, 0, DIF_VAR_ARG7, DT_ATTR_STABCMN, DT_VERS_1_0,
183	&dt_idops_type, "int64_t" },
184{ "arg8", DT_IDENT_SCALAR, 0, DIF_VAR_ARG8, DT_ATTR_STABCMN, DT_VERS_1_0,
185	&dt_idops_type, "int64_t" },
186{ "arg9", DT_IDENT_SCALAR, 0, DIF_VAR_ARG9, DT_ATTR_STABCMN, DT_VERS_1_0,
187	&dt_idops_type, "int64_t" },
188{ "args", DT_IDENT_ARRAY, 0, DIF_VAR_ARGS, DT_ATTR_STABCMN, DT_VERS_1_0,
189	&dt_idops_args, NULL },
190{ "avg", DT_IDENT_AGGFUNC, 0, DTRACEAGG_AVG, DT_ATTR_STABCMN, DT_VERS_1_0,
191	&dt_idops_func, "void(@)" },
192{ "basename", DT_IDENT_FUNC, 0, DIF_SUBR_BASENAME, DT_ATTR_STABCMN, DT_VERS_1_0,
193	&dt_idops_func, "string(const char *)" },
194{ "bcopy", DT_IDENT_FUNC, 0, DIF_SUBR_BCOPY, DT_ATTR_STABCMN, DT_VERS_1_0,
195	&dt_idops_func, "void(void *, void *, size_t)" },
196{ "breakpoint", DT_IDENT_ACTFUNC, 0, DT_ACT_BREAKPOINT,
197	DT_ATTR_STABCMN, DT_VERS_1_0,
198	&dt_idops_func, "void()" },
199{ "caller", DT_IDENT_SCALAR, 0, DIF_VAR_CALLER, DT_ATTR_STABCMN, DT_VERS_1_0,
200	&dt_idops_type, "uintptr_t" },
201{ "chill", DT_IDENT_ACTFUNC, 0, DT_ACT_CHILL, DT_ATTR_STABCMN, DT_VERS_1_0,
202	&dt_idops_func, "void(int)" },
203{ "cleanpath", DT_IDENT_FUNC, 0, DIF_SUBR_CLEANPATH, DT_ATTR_STABCMN,
204	DT_VERS_1_0, &dt_idops_func, "string(const char *)" },
205{ "clear", DT_IDENT_ACTFUNC, 0, DT_ACT_CLEAR, DT_ATTR_STABCMN, DT_VERS_1_0,
206	&dt_idops_func, "void(...)" },
207{ "commit", DT_IDENT_ACTFUNC, 0, DT_ACT_COMMIT, DT_ATTR_STABCMN, DT_VERS_1_0,
208	&dt_idops_func, "void(int)" },
209{ "copyin", DT_IDENT_FUNC, 0, DIF_SUBR_COPYIN, DT_ATTR_STABCMN, DT_VERS_1_0,
210	&dt_idops_func, "void *(uintptr_t, size_t)" },
211{ "copyinstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINSTR,
212	DT_ATTR_STABCMN, DT_VERS_1_0,
213	&dt_idops_func, "string(uintptr_t, [size_t])" },
214{ "copyinto", DT_IDENT_FUNC, 0, DIF_SUBR_COPYINTO, DT_ATTR_STABCMN,
215	DT_VERS_1_0, &dt_idops_func, "void(uintptr_t, size_t, void *)" },
216{ "copyout", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUT, DT_ATTR_STABCMN, DT_VERS_1_0,
217	&dt_idops_func, "void(void *, uintptr_t, size_t)" },
218{ "copyoutstr", DT_IDENT_FUNC, 0, DIF_SUBR_COPYOUTSTR,
219	DT_ATTR_STABCMN, DT_VERS_1_0,
220	&dt_idops_func, "void(char *, uintptr_t, size_t)" },
221{ "count", DT_IDENT_AGGFUNC, 0, DTRACEAGG_COUNT, DT_ATTR_STABCMN, DT_VERS_1_0,
222	&dt_idops_func, "void()" },
223{ "curthread", DT_IDENT_SCALAR, 0, DIF_VAR_CURTHREAD,
224	{ DTRACE_STABILITY_STABLE, DTRACE_STABILITY_PRIVATE,
225	DTRACE_CLASS_COMMON }, DT_VERS_1_0,
226	&dt_idops_type, "genunix`kthread_t *" },
227{ "ddi_pathname", DT_IDENT_FUNC, 0, DIF_SUBR_DDI_PATHNAME,
228	DT_ATTR_EVOLCMN, DT_VERS_1_0,
229	&dt_idops_func, "string(void *, int64_t)" },
230{ "denormalize", DT_IDENT_ACTFUNC, 0, DT_ACT_DENORMALIZE, DT_ATTR_STABCMN,
231	DT_VERS_1_0, &dt_idops_func, "void(...)" },
232{ "dirname", DT_IDENT_FUNC, 0, DIF_SUBR_DIRNAME, DT_ATTR_STABCMN, DT_VERS_1_0,
233	&dt_idops_func, "string(const char *)" },
234{ "discard", DT_IDENT_ACTFUNC, 0, DT_ACT_DISCARD, DT_ATTR_STABCMN, DT_VERS_1_0,
235	&dt_idops_func, "void(int)" },
236{ "epid", DT_IDENT_SCALAR, 0, DIF_VAR_EPID, DT_ATTR_STABCMN, DT_VERS_1_0,
237	&dt_idops_type, "uint_t" },
238{ "errno", DT_IDENT_SCALAR, 0, DIF_VAR_ERRNO, DT_ATTR_STABCMN, DT_VERS_1_0,
239	&dt_idops_type, "int" },
240{ "execname", DT_IDENT_SCALAR, 0, DIF_VAR_EXECNAME,
241	DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
242{ "exit", DT_IDENT_ACTFUNC, 0, DT_ACT_EXIT, DT_ATTR_STABCMN, DT_VERS_1_0,
243	&dt_idops_func, "void(int)" },
244{ "freopen", DT_IDENT_ACTFUNC, 0, DT_ACT_FREOPEN, DT_ATTR_STABCMN,
245	DT_VERS_1_1, &dt_idops_func, "void(@, ...)" },
246{ "ftruncate", DT_IDENT_ACTFUNC, 0, DT_ACT_FTRUNCATE, DT_ATTR_STABCMN,
247	DT_VERS_1_0, &dt_idops_func, "void()" },
248{ "func", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN,
249	DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" },
250{ "getmajor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMAJOR,
251	DT_ATTR_EVOLCMN, DT_VERS_1_0,
252	&dt_idops_func, "genunix`major_t(genunix`dev_t)" },
253{ "getminor", DT_IDENT_FUNC, 0, DIF_SUBR_GETMINOR,
254	DT_ATTR_EVOLCMN, DT_VERS_1_0,
255	&dt_idops_func, "genunix`minor_t(genunix`dev_t)" },
256{ "htonl", DT_IDENT_FUNC, 0, DIF_SUBR_HTONL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
257	&dt_idops_func, "uint32_t(uint32_t)" },
258{ "htonll", DT_IDENT_FUNC, 0, DIF_SUBR_HTONLL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
259	&dt_idops_func, "uint64_t(uint64_t)" },
260{ "htons", DT_IDENT_FUNC, 0, DIF_SUBR_HTONS, DT_ATTR_EVOLCMN, DT_VERS_1_3,
261	&dt_idops_func, "uint16_t(uint16_t)" },
262{ "getf", DT_IDENT_FUNC, 0, DIF_SUBR_GETF, DT_ATTR_STABCMN, DT_VERS_1_10,
263	&dt_idops_func, "file_t *(int)" },
264{ "gid", DT_IDENT_SCALAR, 0, DIF_VAR_GID, DT_ATTR_STABCMN, DT_VERS_1_0,
265	&dt_idops_type, "gid_t" },
266{ "id", DT_IDENT_SCALAR, 0, DIF_VAR_ID, DT_ATTR_STABCMN, DT_VERS_1_0,
267	&dt_idops_type, "uint_t" },
268{ "index", DT_IDENT_FUNC, 0, DIF_SUBR_INDEX, DT_ATTR_STABCMN, DT_VERS_1_1,
269	&dt_idops_func, "int(const char *, const char *, [int])" },
270{ "inet_ntoa", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA, DT_ATTR_STABCMN,
271	DT_VERS_1_5, &dt_idops_func, "string(ipaddr_t *)" },
272{ "inet_ntoa6", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOA6, DT_ATTR_STABCMN,
273	DT_VERS_1_5, &dt_idops_func, "string(in6_addr_t *)" },
274{ "inet_ntop", DT_IDENT_FUNC, 0, DIF_SUBR_INET_NTOP, DT_ATTR_STABCMN,
275	DT_VERS_1_5, &dt_idops_func, "string(int, void *)" },
276{ "ipl", DT_IDENT_SCALAR, 0, DIF_VAR_IPL, DT_ATTR_STABCMN, DT_VERS_1_0,
277	&dt_idops_type, "uint_t" },
278{ "json", DT_IDENT_FUNC, 0, DIF_SUBR_JSON, DT_ATTR_STABCMN, DT_VERS_1_11,
279	&dt_idops_func, "string(const char *, const char *)" },
280{ "jstack", DT_IDENT_ACTFUNC, 0, DT_ACT_JSTACK, DT_ATTR_STABCMN, DT_VERS_1_0,
281	&dt_idops_func, "stack(...)" },
282{ "lltostr", DT_IDENT_FUNC, 0, DIF_SUBR_LLTOSTR, DT_ATTR_STABCMN, DT_VERS_1_0,
283	&dt_idops_func, "string(int64_t, [int])" },
284{ "llquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LLQUANTIZE, DT_ATTR_STABCMN,
285	DT_VERS_1_7, &dt_idops_func,
286	"void(@, int32_t, int32_t, int32_t, int32_t, ...)" },
287{ "lquantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_LQUANTIZE,
288	DT_ATTR_STABCMN, DT_VERS_1_0,
289	&dt_idops_func, "void(@, int32_t, int32_t, ...)" },
290{ "max", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MAX, DT_ATTR_STABCMN, DT_VERS_1_0,
291	&dt_idops_func, "void(@)" },
292{ "min", DT_IDENT_AGGFUNC, 0, DTRACEAGG_MIN, DT_ATTR_STABCMN, DT_VERS_1_0,
293	&dt_idops_func, "void(@)" },
294{ "mod", DT_IDENT_ACTFUNC, 0, DT_ACT_MOD, DT_ATTR_STABCMN,
295	DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" },
296{ "msgdsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGDSIZE,
297	DT_ATTR_STABCMN, DT_VERS_1_0,
298	&dt_idops_func, "size_t(mblk_t *)" },
299{ "msgsize", DT_IDENT_FUNC, 0, DIF_SUBR_MSGSIZE,
300	DT_ATTR_STABCMN, DT_VERS_1_0,
301	&dt_idops_func, "size_t(mblk_t *)" },
302{ "mutex_owned", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNED,
303	DT_ATTR_EVOLCMN, DT_VERS_1_0,
304	&dt_idops_func, "int(genunix`kmutex_t *)" },
305{ "mutex_owner", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_OWNER,
306	DT_ATTR_EVOLCMN, DT_VERS_1_0,
307	&dt_idops_func, "genunix`kthread_t *(genunix`kmutex_t *)" },
308{ "mutex_type_adaptive", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_ADAPTIVE,
309	DT_ATTR_EVOLCMN, DT_VERS_1_0,
310	&dt_idops_func, "int(genunix`kmutex_t *)" },
311{ "mutex_type_spin", DT_IDENT_FUNC, 0, DIF_SUBR_MUTEX_TYPE_SPIN,
312	DT_ATTR_EVOLCMN, DT_VERS_1_0,
313	&dt_idops_func, "int(genunix`kmutex_t *)" },
314{ "ntohl", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
315	&dt_idops_func, "uint32_t(uint32_t)" },
316{ "ntohll", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHLL, DT_ATTR_EVOLCMN, DT_VERS_1_3,
317	&dt_idops_func, "uint64_t(uint64_t)" },
318{ "ntohs", DT_IDENT_FUNC, 0, DIF_SUBR_NTOHS, DT_ATTR_EVOLCMN, DT_VERS_1_3,
319	&dt_idops_func, "uint16_t(uint16_t)" },
320{ "normalize", DT_IDENT_ACTFUNC, 0, DT_ACT_NORMALIZE, DT_ATTR_STABCMN,
321	DT_VERS_1_0, &dt_idops_func, "void(...)" },
322{ "panic", DT_IDENT_ACTFUNC, 0, DT_ACT_PANIC, DT_ATTR_STABCMN, DT_VERS_1_0,
323	&dt_idops_func, "void()" },
324{ "pid", DT_IDENT_SCALAR, 0, DIF_VAR_PID, DT_ATTR_STABCMN, DT_VERS_1_0,
325	&dt_idops_type, "pid_t" },
326{ "ppid", DT_IDENT_SCALAR, 0, DIF_VAR_PPID, DT_ATTR_STABCMN, DT_VERS_1_0,
327	&dt_idops_type, "pid_t" },
328{ "print", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINT, DT_ATTR_STABCMN, DT_VERS_1_9,
329	&dt_idops_func, "void(@)" },
330{ "printa", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTA, DT_ATTR_STABCMN, DT_VERS_1_0,
331	&dt_idops_func, "void(@, ...)" },
332{ "printf", DT_IDENT_ACTFUNC, 0, DT_ACT_PRINTF, DT_ATTR_STABCMN, DT_VERS_1_0,
333	&dt_idops_func, "void(@, ...)" },
334{ "probefunc", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEFUNC,
335	DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
336{ "probemod", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEMOD,
337	DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
338{ "probename", DT_IDENT_SCALAR, 0, DIF_VAR_PROBENAME,
339	DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
340{ "probeprov", DT_IDENT_SCALAR, 0, DIF_VAR_PROBEPROV,
341	DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
342{ "progenyof", DT_IDENT_FUNC, 0, DIF_SUBR_PROGENYOF,
343	DT_ATTR_STABCMN, DT_VERS_1_0,
344	&dt_idops_func, "int(pid_t)" },
345{ "quantize", DT_IDENT_AGGFUNC, 0, DTRACEAGG_QUANTIZE,
346	DT_ATTR_STABCMN, DT_VERS_1_0,
347	&dt_idops_func, "void(@, ...)" },
348{ "raise", DT_IDENT_ACTFUNC, 0, DT_ACT_RAISE, DT_ATTR_STABCMN, DT_VERS_1_0,
349	&dt_idops_func, "void(int)" },
350{ "rand", DT_IDENT_FUNC, 0, DIF_SUBR_RAND, DT_ATTR_STABCMN, DT_VERS_1_0,
351	&dt_idops_func, "int()" },
352{ "rindex", DT_IDENT_FUNC, 0, DIF_SUBR_RINDEX, DT_ATTR_STABCMN, DT_VERS_1_1,
353	&dt_idops_func, "int(const char *, const char *, [int])" },
354{ "rw_iswriter", DT_IDENT_FUNC, 0, DIF_SUBR_RW_ISWRITER,
355	DT_ATTR_EVOLCMN, DT_VERS_1_0,
356	&dt_idops_func, "int(genunix`krwlock_t *)" },
357{ "rw_read_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_READ_HELD,
358	DT_ATTR_EVOLCMN, DT_VERS_1_0,
359	&dt_idops_func, "int(genunix`krwlock_t *)" },
360{ "rw_write_held", DT_IDENT_FUNC, 0, DIF_SUBR_RW_WRITE_HELD,
361	DT_ATTR_EVOLCMN, DT_VERS_1_0,
362	&dt_idops_func, "int(genunix`krwlock_t *)" },
363{ "self", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0,
364	&dt_idops_type, "void" },
365{ "setopt", DT_IDENT_ACTFUNC, 0, DT_ACT_SETOPT, DT_ATTR_STABCMN,
366	DT_VERS_1_2, &dt_idops_func, "void(const char *, [const char *])" },
367{ "speculate", DT_IDENT_ACTFUNC, 0, DT_ACT_SPECULATE,
368	DT_ATTR_STABCMN, DT_VERS_1_0,
369	&dt_idops_func, "void(int)" },
370{ "speculation", DT_IDENT_FUNC, 0, DIF_SUBR_SPECULATION,
371	DT_ATTR_STABCMN, DT_VERS_1_0,
372	&dt_idops_func, "int()" },
373{ "stack", DT_IDENT_ACTFUNC, 0, DT_ACT_STACK, DT_ATTR_STABCMN, DT_VERS_1_0,
374	&dt_idops_func, "stack(...)" },
375{ "stackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_STACKDEPTH,
376	DT_ATTR_STABCMN, DT_VERS_1_0,
377	&dt_idops_type, "uint32_t" },
378{ "stddev", DT_IDENT_AGGFUNC, 0, DTRACEAGG_STDDEV, DT_ATTR_STABCMN,
379	DT_VERS_1_6, &dt_idops_func, "void(@)" },
380{ "stop", DT_IDENT_ACTFUNC, 0, DT_ACT_STOP, DT_ATTR_STABCMN, DT_VERS_1_0,
381	&dt_idops_func, "void()" },
382{ "strchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRCHR, DT_ATTR_STABCMN, DT_VERS_1_1,
383	&dt_idops_func, "string(const char *, char)" },
384{ "strlen", DT_IDENT_FUNC, 0, DIF_SUBR_STRLEN, DT_ATTR_STABCMN, DT_VERS_1_0,
385	&dt_idops_func, "size_t(const char *)" },
386{ "strjoin", DT_IDENT_FUNC, 0, DIF_SUBR_STRJOIN, DT_ATTR_STABCMN, DT_VERS_1_0,
387	&dt_idops_func, "string(const char *, const char *)" },
388{ "strrchr", DT_IDENT_FUNC, 0, DIF_SUBR_STRRCHR, DT_ATTR_STABCMN, DT_VERS_1_1,
389	&dt_idops_func, "string(const char *, char)" },
390{ "strstr", DT_IDENT_FUNC, 0, DIF_SUBR_STRSTR, DT_ATTR_STABCMN, DT_VERS_1_1,
391	&dt_idops_func, "string(const char *, const char *)" },
392{ "strtok", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOK, DT_ATTR_STABCMN, DT_VERS_1_1,
393	&dt_idops_func, "string(const char *, const char *)" },
394{ "strtoll", DT_IDENT_FUNC, 0, DIF_SUBR_STRTOLL, DT_ATTR_STABCMN, DT_VERS_1_11,
395	&dt_idops_func, "int64_t(const char *, [int])" },
396{ "substr", DT_IDENT_FUNC, 0, DIF_SUBR_SUBSTR, DT_ATTR_STABCMN, DT_VERS_1_1,
397	&dt_idops_func, "string(const char *, int, [int])" },
398{ "sum", DT_IDENT_AGGFUNC, 0, DTRACEAGG_SUM, DT_ATTR_STABCMN, DT_VERS_1_0,
399	&dt_idops_func, "void(@)" },
400{ "sym", DT_IDENT_ACTFUNC, 0, DT_ACT_SYM, DT_ATTR_STABCMN,
401	DT_VERS_1_2, &dt_idops_func, "_symaddr(uintptr_t)" },
402{ "system", DT_IDENT_ACTFUNC, 0, DT_ACT_SYSTEM, DT_ATTR_STABCMN, DT_VERS_1_0,
403	&dt_idops_func, "void(@, ...)" },
404{ "this", DT_IDENT_PTR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0,
405	&dt_idops_type, "void" },
406{ "threadname", DT_IDENT_SCALAR, 0, DIF_VAR_THREADNAME,
407	DT_ATTR_STABCMN, DT_VERS_1_14, &dt_idops_type, "string" },
408{ "tid", DT_IDENT_SCALAR, 0, DIF_VAR_TID, DT_ATTR_STABCMN, DT_VERS_1_0,
409	&dt_idops_type, "id_t" },
410{ "timestamp", DT_IDENT_SCALAR, 0, DIF_VAR_TIMESTAMP,
411	DT_ATTR_STABCMN, DT_VERS_1_0,
412	&dt_idops_type, "uint64_t" },
413{ "tolower", DT_IDENT_FUNC, 0, DIF_SUBR_TOLOWER, DT_ATTR_STABCMN, DT_VERS_1_8,
414	&dt_idops_func, "string(const char *)" },
415{ "toupper", DT_IDENT_FUNC, 0, DIF_SUBR_TOUPPER, DT_ATTR_STABCMN, DT_VERS_1_8,
416	&dt_idops_func, "string(const char *)" },
417{ "trace", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACE, DT_ATTR_STABCMN, DT_VERS_1_0,
418	&dt_idops_func, "void(@)" },
419{ "tracemem", DT_IDENT_ACTFUNC, 0, DT_ACT_TRACEMEM,
420	DT_ATTR_STABCMN, DT_VERS_1_0,
421	&dt_idops_func, "void(@, size_t, ...)" },
422{ "trunc", DT_IDENT_ACTFUNC, 0, DT_ACT_TRUNC, DT_ATTR_STABCMN,
423	DT_VERS_1_0, &dt_idops_func, "void(...)" },
424{ "uaddr", DT_IDENT_ACTFUNC, 0, DT_ACT_UADDR, DT_ATTR_STABCMN,
425	DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
426{ "ucaller", DT_IDENT_SCALAR, 0, DIF_VAR_UCALLER, DT_ATTR_STABCMN,
427	DT_VERS_1_2, &dt_idops_type, "uint64_t" },
428{ "ufunc", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN,
429	DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
430{ "uid", DT_IDENT_SCALAR, 0, DIF_VAR_UID, DT_ATTR_STABCMN, DT_VERS_1_0,
431	&dt_idops_type, "uid_t" },
432{ "umod", DT_IDENT_ACTFUNC, 0, DT_ACT_UMOD, DT_ATTR_STABCMN,
433	DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
434{ "uregs", DT_IDENT_ARRAY, DT_IDFLG_WRITE, DIF_VAR_UREGS, DT_ATTR_STABCMN,
435	DT_VERS_1_0, &dt_idops_regs, NULL },
436{ "ustack", DT_IDENT_ACTFUNC, 0, DT_ACT_USTACK, DT_ATTR_STABCMN, DT_VERS_1_0,
437	&dt_idops_func, "stack(...)" },
438{ "ustackdepth", DT_IDENT_SCALAR, 0, DIF_VAR_USTACKDEPTH,
439	DT_ATTR_STABCMN, DT_VERS_1_2,
440	&dt_idops_type, "uint32_t" },
441{ "usym", DT_IDENT_ACTFUNC, 0, DT_ACT_USYM, DT_ATTR_STABCMN,
442	DT_VERS_1_2, &dt_idops_func, "_usymaddr(uintptr_t)" },
443{ "vmregs", DT_IDENT_ARRAY, 0, DIF_VAR_VMREGS, DT_ATTR_STABCMN, DT_VERS_1_7,
444	&dt_idops_regs, NULL },
445{ "vtimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_VTIMESTAMP,
446	DT_ATTR_STABCMN, DT_VERS_1_0,
447	&dt_idops_type, "uint64_t" },
448{ "walltimestamp", DT_IDENT_SCALAR, 0, DIF_VAR_WALLTIMESTAMP,
449	DT_ATTR_STABCMN, DT_VERS_1_0,
450	&dt_idops_type, "int64_t" },
451{ "zonename", DT_IDENT_SCALAR, 0, DIF_VAR_ZONENAME,
452	DT_ATTR_STABCMN, DT_VERS_1_0, &dt_idops_type, "string" },
453{ NULL, 0, 0, 0, { 0, 0, 0 }, 0, NULL, NULL }
454};
455
456/*
457 * Tables of ILP32 intrinsic integer and floating-point type templates to use
458 * to populate the dynamic "C" CTF type container.
459 */
460static const dt_intrinsic_t _dtrace_intrinsics_32[] = {
461{ "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER },
462{ "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
463{ "unsigned", { 0, 0, 32 }, CTF_K_INTEGER },
464{ "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
465{ "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
466{ "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
467{ "long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
468{ "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
469{ "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
470{ "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
471{ "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
472{ "signed long", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
473{ "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
474{ "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
475{ "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER },
476{ "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER },
477{ "unsigned long", { 0, 0, 32 }, CTF_K_INTEGER },
478{ "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER },
479{ "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER },
480{ "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT },
481{ "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT },
482{ "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT },
483{ "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT },
484{ "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT },
485{ "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT },
486{ "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT },
487{ "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT },
488{ "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT },
489{ NULL, { 0, 0, 0 }, 0 }
490};
491
492/*
493 * Tables of LP64 intrinsic integer and floating-point type templates to use
494 * to populate the dynamic "C" CTF type container.
495 */
496static const dt_intrinsic_t _dtrace_intrinsics_64[] = {
497{ "void", { CTF_INT_SIGNED, 0, 0 }, CTF_K_INTEGER },
498{ "signed", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
499{ "unsigned", { 0, 0, 32 }, CTF_K_INTEGER },
500{ "char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
501{ "short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
502{ "int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
503{ "long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
504{ "long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
505{ "signed char", { CTF_INT_SIGNED | CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
506{ "signed short", { CTF_INT_SIGNED, 0, 16 }, CTF_K_INTEGER },
507{ "signed int", { CTF_INT_SIGNED, 0, 32 }, CTF_K_INTEGER },
508{ "signed long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
509{ "signed long long", { CTF_INT_SIGNED, 0, 64 }, CTF_K_INTEGER },
510{ "unsigned char", { CTF_INT_CHAR, 0, 8 }, CTF_K_INTEGER },
511{ "unsigned short", { 0, 0, 16 }, CTF_K_INTEGER },
512{ "unsigned int", { 0, 0, 32 }, CTF_K_INTEGER },
513{ "unsigned long", { 0, 0, 64 }, CTF_K_INTEGER },
514{ "unsigned long long", { 0, 0, 64 }, CTF_K_INTEGER },
515{ "_Bool", { CTF_INT_BOOL, 0, 8 }, CTF_K_INTEGER },
516{ "float", { CTF_FP_SINGLE, 0, 32 }, CTF_K_FLOAT },
517{ "double", { CTF_FP_DOUBLE, 0, 64 }, CTF_K_FLOAT },
518{ "long double", { CTF_FP_LDOUBLE, 0, 128 }, CTF_K_FLOAT },
519{ "float imaginary", { CTF_FP_IMAGRY, 0, 32 }, CTF_K_FLOAT },
520{ "double imaginary", { CTF_FP_DIMAGRY, 0, 64 }, CTF_K_FLOAT },
521{ "long double imaginary", { CTF_FP_LDIMAGRY, 0, 128 }, CTF_K_FLOAT },
522{ "float complex", { CTF_FP_CPLX, 0, 64 }, CTF_K_FLOAT },
523{ "double complex", { CTF_FP_DCPLX, 0, 128 }, CTF_K_FLOAT },
524{ "long double complex", { CTF_FP_LDCPLX, 0, 256 }, CTF_K_FLOAT },
525{ NULL, { 0, 0, 0 }, 0 }
526};
527
528/*
529 * Tables of ILP32 typedefs to use to populate the dynamic "D" CTF container.
530 * These aliases ensure that D definitions can use typical <sys/types.h> names.
531 */
532static const dt_typedef_t _dtrace_typedefs_32[] = {
533{ "char", "int8_t" },
534{ "short", "int16_t" },
535{ "int", "int32_t" },
536{ "long long", "int64_t" },
537{ "int", "intptr_t" },
538{ "int", "ssize_t" },
539{ "unsigned char", "uint8_t" },
540{ "unsigned short", "uint16_t" },
541{ "unsigned", "uint32_t" },
542{ "unsigned long long", "uint64_t" },
543{ "unsigned char", "uchar_t" },
544{ "unsigned short", "ushort_t" },
545{ "unsigned", "uint_t" },
546{ "unsigned long", "ulong_t" },
547{ "unsigned long long", "u_longlong_t" },
548{ "int", "ptrdiff_t" },
549{ "unsigned", "uintptr_t" },
550{ "unsigned", "size_t" },
551{ "long", "id_t" },
552{ "long", "pid_t" },
553{ NULL, NULL }
554};
555
556/*
557 * Tables of LP64 typedefs to use to populate the dynamic "D" CTF container.
558 * These aliases ensure that D definitions can use typical <sys/types.h> names.
559 */
560static const dt_typedef_t _dtrace_typedefs_64[] = {
561{ "char", "int8_t" },
562{ "short", "int16_t" },
563{ "int", "int32_t" },
564{ "long", "int64_t" },
565{ "long", "intptr_t" },
566{ "long", "ssize_t" },
567{ "unsigned char", "uint8_t" },
568{ "unsigned short", "uint16_t" },
569{ "unsigned", "uint32_t" },
570{ "unsigned long", "uint64_t" },
571{ "unsigned char", "uchar_t" },
572{ "unsigned short", "ushort_t" },
573{ "unsigned", "uint_t" },
574{ "unsigned long", "ulong_t" },
575{ "unsigned long long", "u_longlong_t" },
576{ "long", "ptrdiff_t" },
577{ "unsigned long", "uintptr_t" },
578{ "unsigned long", "size_t" },
579{ "int", "id_t" },
580{ "int", "pid_t" },
581{ NULL, NULL }
582};
583
584/*
585 * Tables of ILP32 integer type templates used to populate the dtp->dt_ints[]
586 * cache when a new dtrace client open occurs.  Values are set by dtrace_open().
587 */
588static const dt_intdesc_t _dtrace_ints_32[] = {
589{ "int", NULL, CTF_ERR, 0x7fffffffULL },
590{ "unsigned int", NULL, CTF_ERR, 0xffffffffULL },
591{ "long", NULL, CTF_ERR, 0x7fffffffULL },
592{ "unsigned long", NULL, CTF_ERR, 0xffffffffULL },
593{ "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL },
594{ "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL }
595};
596
597/*
598 * Tables of LP64 integer type templates used to populate the dtp->dt_ints[]
599 * cache when a new dtrace client open occurs.  Values are set by dtrace_open().
600 */
601static const dt_intdesc_t _dtrace_ints_64[] = {
602{ "int", NULL, CTF_ERR, 0x7fffffffULL },
603{ "unsigned int", NULL, CTF_ERR, 0xffffffffULL },
604{ "long", NULL, CTF_ERR, 0x7fffffffffffffffULL },
605{ "unsigned long", NULL, CTF_ERR, 0xffffffffffffffffULL },
606{ "long long", NULL, CTF_ERR, 0x7fffffffffffffffULL },
607{ "unsigned long long", NULL, CTF_ERR, 0xffffffffffffffffULL }
608};
609
610/*
611 * Table of macro variable templates used to populate the macro identifier hash
612 * when a new dtrace client open occurs.  Values are set by dtrace_update().
613 */
614static const dt_ident_t _dtrace_macros[] = {
615{ "egid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
616{ "euid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
617{ "gid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
618{ "pid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
619{ "pgid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
620{ "ppid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
621{ "projid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
622{ "sid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
623{ "taskid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
624{ "target", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
625{ "uid", DT_IDENT_SCALAR, 0, 0, DT_ATTR_STABCMN, DT_VERS_1_0 },
626{ NULL, 0, 0, 0, { 0, 0, 0 }, 0 }
627};
628
629/*
630 * Hard-wired definition string to be compiled and cached every time a new
631 * DTrace library handle is initialized.  This string should only be used to
632 * contain definitions that should be present regardless of DTRACE_O_NOLIBS.
633 */
634static const char _dtrace_hardwire[] = "\
635inline long NULL = 0; \n\
636#pragma D binding \"1.0\" NULL\n\
637";
638
639/*
640 * Default DTrace configuration to use when opening libdtrace DTRACE_O_NODEV.
641 * If DTRACE_O_NODEV is not set, we load the configuration from the kernel.
642 * The use of CTF_MODEL_NATIVE is more subtle than it might appear: we are
643 * relying on the fact that when running dtrace(1M), isaexec will invoke the
644 * binary with the same bitness as the kernel, which is what we want by default
645 * when generating our DIF.  The user can override the choice using oflags.
646 */
647static const dtrace_conf_t _dtrace_conf = {
648	DIF_VERSION,		/* dtc_difversion */
649	DIF_DIR_NREGS,		/* dtc_difintregs */
650	DIF_DTR_NREGS,		/* dtc_diftupregs */
651	CTF_MODEL_NATIVE	/* dtc_ctfmodel */
652};
653
654const dtrace_attribute_t _dtrace_maxattr = {
655	DTRACE_STABILITY_MAX,
656	DTRACE_STABILITY_MAX,
657	DTRACE_CLASS_MAX
658};
659
660const dtrace_attribute_t _dtrace_defattr = {
661	DTRACE_STABILITY_STABLE,
662	DTRACE_STABILITY_STABLE,
663	DTRACE_CLASS_COMMON
664};
665
666const dtrace_attribute_t _dtrace_symattr = {
667	DTRACE_STABILITY_PRIVATE,
668	DTRACE_STABILITY_PRIVATE,
669	DTRACE_CLASS_UNKNOWN
670};
671
672const dtrace_attribute_t _dtrace_typattr = {
673	DTRACE_STABILITY_PRIVATE,
674	DTRACE_STABILITY_PRIVATE,
675	DTRACE_CLASS_UNKNOWN
676};
677
678const dtrace_attribute_t _dtrace_prvattr = {
679	DTRACE_STABILITY_PRIVATE,
680	DTRACE_STABILITY_PRIVATE,
681	DTRACE_CLASS_UNKNOWN
682};
683
684const dtrace_pattr_t _dtrace_prvdesc = {
685{ DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
686{ DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
687{ DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
688{ DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
689{ DTRACE_STABILITY_UNSTABLE, DTRACE_STABILITY_UNSTABLE, DTRACE_CLASS_COMMON },
690};
691
692const char *_dtrace_defcpp = "/usr/ccs/lib/cpp"; /* default cpp(1) to invoke */
693const char *_dtrace_defld = "/usr/ccs/bin/ld";   /* default ld(1) to invoke */
694
695const char *_dtrace_libdir = "/usr/lib/dtrace"; /* default library directory */
696const char *_dtrace_provdir = "/dev/dtrace/provider"; /* provider directory */
697
698int _dtrace_strbuckets = 211;	/* default number of hash buckets (prime) */
699int _dtrace_intbuckets = 256;	/* default number of integer buckets (Pof2) */
700uint_t _dtrace_strsize = 256;	/* default size of string intrinsic type */
701uint_t _dtrace_stkindent = 14;	/* default whitespace indent for stack/ustack */
702uint_t _dtrace_pidbuckets = 64; /* default number of pid hash buckets */
703uint_t _dtrace_pidlrulim = 8;	/* default number of pid handles to cache */
704size_t _dtrace_bufsize = 512;	/* default dt_buf_create() size */
705int _dtrace_argmax = 32;	/* default maximum number of probe arguments */
706
707int _dtrace_debug = 0;		/* debug messages enabled (off) */
708const char *const _dtrace_version = DT_VERS_STRING; /* API version string */
709int _dtrace_rdvers = RD_VERSION; /* rtld_db feature version */
710
711typedef struct dt_fdlist {
712	int *df_fds;		/* array of provider driver file descriptors */
713	uint_t df_ents;		/* number of valid elements in df_fds[] */
714	uint_t df_size;		/* size of df_fds[] */
715} dt_fdlist_t;
716
717#pragma init(_dtrace_init)
718void
719_dtrace_init(void)
720{
721	_dtrace_debug = getenv("DTRACE_DEBUG") != NULL;
722
723	for (; _dtrace_rdvers > 0; _dtrace_rdvers--) {
724		if (rd_init(_dtrace_rdvers) == RD_OK)
725			break;
726	}
727}
728
729static dtrace_hdl_t *
730set_open_errno(dtrace_hdl_t *dtp, int *errp, int err)
731{
732	if (dtp != NULL)
733		dtrace_close(dtp);
734	if (errp != NULL)
735		*errp = err;
736	return (NULL);
737}
738
739static void
740dt_provmod_open(dt_provmod_t **provmod, dt_fdlist_t *dfp)
741{
742	dt_provmod_t *prov;
743	char path[PATH_MAX];
744	struct dirent *dp, *ep;
745	DIR *dirp;
746	int fd;
747
748	if ((dirp = opendir(_dtrace_provdir)) == NULL)
749		return; /* failed to open directory; just skip it */
750
751	ep = alloca(sizeof (struct dirent) + PATH_MAX + 1);
752	bzero(ep, sizeof (struct dirent) + PATH_MAX + 1);
753
754	while (readdir_r(dirp, ep, &dp) == 0 && dp != NULL) {
755		if (dp->d_name[0] == '.')
756			continue; /* skip "." and ".." */
757
758		if (dfp->df_ents == dfp->df_size) {
759			uint_t size = dfp->df_size ? dfp->df_size * 2 : 16;
760			int *fds = realloc(dfp->df_fds, size * sizeof (int));
761
762			if (fds == NULL)
763				break; /* skip the rest of this directory */
764
765			dfp->df_fds = fds;
766			dfp->df_size = size;
767		}
768
769		(void) snprintf(path, sizeof (path), "%s/%s",
770		    _dtrace_provdir, dp->d_name);
771
772		if ((fd = open(path, O_RDONLY)) == -1)
773			continue; /* failed to open driver; just skip it */
774
775		if (((prov = malloc(sizeof (dt_provmod_t))) == NULL) ||
776		    (prov->dp_name = malloc(strlen(dp->d_name) + 1)) == NULL) {
777			free(prov);
778			(void) close(fd);
779			break;
780		}
781
782		(void) strcpy(prov->dp_name, dp->d_name);
783		prov->dp_next = *provmod;
784		*provmod = prov;
785
786		dt_dprintf("opened provider %s\n", dp->d_name);
787		dfp->df_fds[dfp->df_ents++] = fd;
788	}
789
790	(void) closedir(dirp);
791}
792
793static void
794dt_provmod_destroy(dt_provmod_t **provmod)
795{
796	dt_provmod_t *next, *current;
797
798	for (current = *provmod; current != NULL; current = next) {
799		next = current->dp_next;
800		free(current->dp_name);
801		free(current);
802	}
803
804	*provmod = NULL;
805}
806
807static const char *
808dt_get_sysinfo(int cmd, char *buf, size_t len)
809{
810	ssize_t rv = sysinfo(cmd, buf, len);
811	char *p = buf;
812
813	if (rv < 0 || rv > len)
814		(void) snprintf(buf, len, "%s", "Unknown");
815
816	while ((p = strchr(p, '.')) != NULL)
817		*p++ = '_';
818
819	return (buf);
820}
821
822static dtrace_hdl_t *
823dt_vopen(int version, int flags, int *errp,
824    const dtrace_vector_t *vector, void *arg)
825{
826	dtrace_hdl_t *dtp = NULL;
827	int dtfd = -1, ftfd = -1, fterr = 0;
828	dtrace_prog_t *pgp;
829	dt_module_t *dmp;
830	dt_provmod_t *provmod = NULL;
831	int i, err;
832	struct rlimit rl;
833
834	const dt_intrinsic_t *dinp;
835	const dt_typedef_t *dtyp;
836	const dt_ident_t *idp;
837
838	dtrace_typeinfo_t dtt;
839	ctf_funcinfo_t ctc;
840	ctf_arinfo_t ctr;
841
842	dt_fdlist_t df = { NULL, 0, 0 };
843
844	char isadef[32], utsdef[32];
845	char s1[64], s2[64];
846
847	if (version <= 0)
848		return (set_open_errno(dtp, errp, EINVAL));
849
850	if (version > DTRACE_VERSION)
851		return (set_open_errno(dtp, errp, EDT_VERSION));
852
853	if (version < DTRACE_VERSION) {
854		/*
855		 * Currently, increasing the library version number is used to
856		 * denote a binary incompatible change.  That is, a consumer
857		 * of the library cannot run on a version of the library with
858		 * a higher DTRACE_VERSION number than the consumer compiled
859		 * against.  Once the library API has been committed to,
860		 * backwards binary compatibility will be required; at that
861		 * time, this check should change to return EDT_OVERSION only
862		 * if the specified version number is less than the version
863		 * number at the time of interface commitment.
864		 */
865		return (set_open_errno(dtp, errp, EDT_OVERSION));
866	}
867
868	if (flags & ~DTRACE_O_MASK)
869		return (set_open_errno(dtp, errp, EINVAL));
870
871	if ((flags & DTRACE_O_LP64) && (flags & DTRACE_O_ILP32))
872		return (set_open_errno(dtp, errp, EINVAL));
873
874	if (vector == NULL && arg != NULL)
875		return (set_open_errno(dtp, errp, EINVAL));
876
877	if (elf_version(EV_CURRENT) == EV_NONE)
878		return (set_open_errno(dtp, errp, EDT_ELFVERSION));
879
880	if (vector != NULL || (flags & DTRACE_O_NODEV))
881		goto alloc; /* do not attempt to open dtrace device */
882
883	/*
884	 * Before we get going, crank our limit on file descriptors up to the
885	 * hard limit.  This is to allow for the fact that libproc keeps file
886	 * descriptors to objects open for the lifetime of the proc handle;
887	 * without raising our hard limit, we would have an acceptably small
888	 * bound on the number of processes that we could concurrently
889	 * instrument with the pid provider.
890	 */
891	if (getrlimit(RLIMIT_NOFILE, &rl) == 0) {
892		rl.rlim_cur = rl.rlim_max;
893		(void) setrlimit(RLIMIT_NOFILE, &rl);
894	}
895
896	/*
897	 * Get the device path of each of the providers.  We hold them open
898	 * in the df.df_fds list until we open the DTrace driver itself,
899	 * allowing us to see all of the probes provided on this system.  Once
900	 * we have the DTrace driver open, we can safely close all the providers
901	 * now that they have registered with the framework.
902	 */
903	dt_provmod_open(&provmod, &df);
904
905	dtfd = open("/dev/dtrace/dtrace", O_RDWR);
906	err = errno; /* save errno from opening dtfd */
907
908	ftfd = open("/dev/dtrace/provider/fasttrap", O_RDWR);
909	fterr = ftfd == -1 ? errno : 0; /* save errno from open ftfd */
910
911	while (df.df_ents-- != 0)
912		(void) close(df.df_fds[df.df_ents]);
913
914	free(df.df_fds);
915
916	/*
917	 * If we failed to open the dtrace device, fail dtrace_open().
918	 * We convert some kernel errnos to custom libdtrace errnos to
919	 * improve the resulting message from the usual strerror().
920	 */
921	if (dtfd == -1) {
922		dt_provmod_destroy(&provmod);
923		switch (err) {
924		case ENOENT:
925			err = EDT_NOENT;
926			break;
927		case EBUSY:
928			err = EDT_BUSY;
929			break;
930		case EACCES:
931			err = EDT_ACCESS;
932			break;
933		}
934		return (set_open_errno(dtp, errp, err));
935	}
936
937	(void) fcntl(dtfd, F_SETFD, FD_CLOEXEC);
938	(void) fcntl(ftfd, F_SETFD, FD_CLOEXEC);
939
940alloc:
941	if ((dtp = malloc(sizeof (dtrace_hdl_t))) == NULL)
942		return (set_open_errno(dtp, errp, EDT_NOMEM));
943
944	bzero(dtp, sizeof (dtrace_hdl_t));
945	dtp->dt_oflags = flags;
946	dtp->dt_prcmode = DT_PROC_STOP_PREINIT;
947	dtp->dt_linkmode = DT_LINK_KERNEL;
948	dtp->dt_linktype = DT_LTYP_ELF;
949	dtp->dt_xlatemode = DT_XL_STATIC;
950	dtp->dt_stdcmode = DT_STDC_XA;
951	dtp->dt_encoding = DT_ENCODING_UNSET;
952	dtp->dt_version = version;
953	dtp->dt_fd = dtfd;
954	dtp->dt_ftfd = ftfd;
955	dtp->dt_fterr = fterr;
956	dtp->dt_cdefs_fd = -1;
957	dtp->dt_ddefs_fd = -1;
958	dtp->dt_stdout_fd = -1;
959	dtp->dt_modbuckets = _dtrace_strbuckets;
960	dtp->dt_mods = calloc(dtp->dt_modbuckets, sizeof (dt_module_t *));
961	dtp->dt_provbuckets = _dtrace_strbuckets;
962	dtp->dt_provs = calloc(dtp->dt_provbuckets, sizeof (dt_provider_t *));
963	dt_proc_init(dtp);
964	dtp->dt_vmax = DT_VERS_LATEST;
965	dtp->dt_cpp_path = strdup(_dtrace_defcpp);
966	dtp->dt_cpp_argv = malloc(sizeof (char *));
967	dtp->dt_cpp_argc = 1;
968	dtp->dt_cpp_args = 1;
969	dtp->dt_ld_path = strdup(_dtrace_defld);
970	dtp->dt_provmod = provmod;
971	dtp->dt_vector = vector;
972	dtp->dt_varg = arg;
973	dt_dof_init(dtp);
974	(void) uname(&dtp->dt_uts);
975
976	if (dtp->dt_mods == NULL || dtp->dt_provs == NULL ||
977	    dtp->dt_procs == NULL || dtp->dt_proc_env == NULL ||
978	    dtp->dt_ld_path == NULL || dtp->dt_cpp_path == NULL ||
979	    dtp->dt_cpp_argv == NULL)
980		return (set_open_errno(dtp, errp, EDT_NOMEM));
981
982	for (i = 0; i < DTRACEOPT_MAX; i++)
983		dtp->dt_options[i] = DTRACEOPT_UNSET;
984
985	dtp->dt_cpp_argv[0] = (char *)strbasename(dtp->dt_cpp_path);
986
987	(void) snprintf(isadef, sizeof (isadef), "-D__SUNW_D_%u",
988	    (uint_t)(sizeof (void *) * NBBY));
989
990	(void) snprintf(utsdef, sizeof (utsdef), "-D__%s_%s",
991	    dt_get_sysinfo(SI_SYSNAME, s1, sizeof (s1)),
992	    dt_get_sysinfo(SI_RELEASE, s2, sizeof (s2)));
993
994	if (dt_cpp_add_arg(dtp, "-D__sun") == NULL ||
995	    dt_cpp_add_arg(dtp, "-D__unix") == NULL ||
996	    dt_cpp_add_arg(dtp, "-D__SVR4") == NULL ||
997	    dt_cpp_add_arg(dtp, "-D__SUNW_D=1") == NULL ||
998	    dt_cpp_add_arg(dtp, isadef) == NULL ||
999	    dt_cpp_add_arg(dtp, utsdef) == NULL)
1000		return (set_open_errno(dtp, errp, EDT_NOMEM));
1001
1002	if (flags & DTRACE_O_NODEV)
1003		bcopy(&_dtrace_conf, &dtp->dt_conf, sizeof (_dtrace_conf));
1004	else if (dt_ioctl(dtp, DTRACEIOC_CONF, &dtp->dt_conf) != 0)
1005		return (set_open_errno(dtp, errp, errno));
1006
1007	if (flags & DTRACE_O_LP64)
1008		dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_LP64;
1009	else if (flags & DTRACE_O_ILP32)
1010		dtp->dt_conf.dtc_ctfmodel = CTF_MODEL_ILP32;
1011
1012#ifdef __sparc
1013	/*
1014	 * On SPARC systems, __sparc is always defined for <sys/isa_defs.h>
1015	 * and __sparcv9 is defined if we are doing a 64-bit compile.
1016	 */
1017	if (dt_cpp_add_arg(dtp, "-D__sparc") == NULL)
1018		return (set_open_errno(dtp, errp, EDT_NOMEM));
1019
1020	if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64 &&
1021	    dt_cpp_add_arg(dtp, "-D__sparcv9") == NULL)
1022		return (set_open_errno(dtp, errp, EDT_NOMEM));
1023#endif
1024
1025#ifdef __x86
1026	/*
1027	 * On x86 systems, __i386 is defined for <sys/isa_defs.h> for 32-bit
1028	 * compiles and __amd64 is defined for 64-bit compiles.  Unlike SPARC,
1029	 * they are defined exclusive of one another (see PSARC 2004/619).
1030	 */
1031	if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_LP64) {
1032		if (dt_cpp_add_arg(dtp, "-D__amd64") == NULL)
1033			return (set_open_errno(dtp, errp, EDT_NOMEM));
1034	} else {
1035		if (dt_cpp_add_arg(dtp, "-D__i386") == NULL)
1036			return (set_open_errno(dtp, errp, EDT_NOMEM));
1037	}
1038#endif
1039
1040	if (dtp->dt_conf.dtc_difversion < DIF_VERSION)
1041		return (set_open_errno(dtp, errp, EDT_DIFVERS));
1042
1043	if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32)
1044		bcopy(_dtrace_ints_32, dtp->dt_ints, sizeof (_dtrace_ints_32));
1045	else
1046		bcopy(_dtrace_ints_64, dtp->dt_ints, sizeof (_dtrace_ints_64));
1047
1048	dtp->dt_macros = dt_idhash_create("macro", NULL, 0, UINT_MAX);
1049	dtp->dt_aggs = dt_idhash_create("aggregation", NULL,
1050	    DTRACE_AGGVARIDNONE + 1, UINT_MAX);
1051
1052	dtp->dt_globals = dt_idhash_create("global", _dtrace_globals,
1053	    DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX);
1054
1055	dtp->dt_tls = dt_idhash_create("thread local", NULL,
1056	    DIF_VAR_OTHER_UBASE, DIF_VAR_OTHER_MAX);
1057
1058	if (dtp->dt_macros == NULL || dtp->dt_aggs == NULL ||
1059	    dtp->dt_globals == NULL || dtp->dt_tls == NULL)
1060		return (set_open_errno(dtp, errp, EDT_NOMEM));
1061
1062	/*
1063	 * Populate the dt_macros identifier hash table by hand: we can't use
1064	 * the dt_idhash_populate() mechanism because we're not yet compiling
1065	 * and dtrace_update() needs to immediately reference these idents.
1066	 */
1067	for (idp = _dtrace_macros; idp->di_name != NULL; idp++) {
1068		if (dt_idhash_insert(dtp->dt_macros, idp->di_name,
1069		    idp->di_kind, idp->di_flags, idp->di_id, idp->di_attr,
1070		    idp->di_vers, idp->di_ops ? idp->di_ops : &dt_idops_thaw,
1071		    idp->di_iarg, 0) == NULL)
1072			return (set_open_errno(dtp, errp, EDT_NOMEM));
1073	}
1074
1075	/*
1076	 * Update the module list using /system/object and load the values for
1077	 * the macro variable definitions according to the current process.
1078	 */
1079	dtrace_update(dtp);
1080
1081	/*
1082	 * Select the intrinsics and typedefs we want based on the data model.
1083	 * The intrinsics are under "C".  The typedefs are added under "D".
1084	 */
1085	if (dtp->dt_conf.dtc_ctfmodel == CTF_MODEL_ILP32) {
1086		dinp = _dtrace_intrinsics_32;
1087		dtyp = _dtrace_typedefs_32;
1088	} else {
1089		dinp = _dtrace_intrinsics_64;
1090		dtyp = _dtrace_typedefs_64;
1091	}
1092
1093	/*
1094	 * Create a dynamic CTF container under the "C" scope for intrinsic
1095	 * types and types defined in ANSI-C header files that are included.
1096	 */
1097	if ((dmp = dtp->dt_cdefs = dt_module_create(dtp, "C")) == NULL)
1098		return (set_open_errno(dtp, errp, EDT_NOMEM));
1099
1100	if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL)
1101		return (set_open_errno(dtp, errp, EDT_CTF));
1102
1103	dt_dprintf("created CTF container for %s (%p)\n",
1104	    dmp->dm_name, (void *)dmp->dm_ctfp);
1105
1106	(void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel);
1107	ctf_setspecific(dmp->dm_ctfp, dmp);
1108
1109	dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */
1110	dmp->dm_modid = -1; /* no module ID */
1111
1112	/*
1113	 * Fill the dynamic "C" CTF container with all of the intrinsic
1114	 * integer and floating-point types appropriate for this data model.
1115	 */
1116	for (; dinp->din_name != NULL; dinp++) {
1117		if (dinp->din_kind == CTF_K_INTEGER) {
1118			err = ctf_add_integer(dmp->dm_ctfp, CTF_ADD_ROOT,
1119			    dinp->din_name, &dinp->din_data);
1120		} else {
1121			err = ctf_add_float(dmp->dm_ctfp, CTF_ADD_ROOT,
1122			    dinp->din_name, &dinp->din_data);
1123		}
1124
1125		if (err == CTF_ERR) {
1126			dt_dprintf("failed to add %s to C container: %s\n",
1127			    dinp->din_name, ctf_errmsg(
1128			    ctf_errno(dmp->dm_ctfp)));
1129			return (set_open_errno(dtp, errp, EDT_CTF));
1130		}
1131	}
1132
1133	if (ctf_update(dmp->dm_ctfp) != 0) {
1134		dt_dprintf("failed to update C container: %s\n",
1135		    ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1136		return (set_open_errno(dtp, errp, EDT_CTF));
1137	}
1138
1139	/*
1140	 * Add intrinsic pointer types that are needed to initialize printf
1141	 * format dictionary types (see table in dt_printf.c).
1142	 */
1143	(void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, NULL,
1144	    ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1145
1146	(void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, NULL,
1147	    ctf_lookup_by_name(dmp->dm_ctfp, "char"));
1148
1149	(void) ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, NULL,
1150	    ctf_lookup_by_name(dmp->dm_ctfp, "int"));
1151
1152	if (ctf_update(dmp->dm_ctfp) != 0) {
1153		dt_dprintf("failed to update C container: %s\n",
1154		    ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1155		return (set_open_errno(dtp, errp, EDT_CTF));
1156	}
1157
1158	/*
1159	 * Create a dynamic CTF container under the "D" scope for types that
1160	 * are defined by the D program itself or on-the-fly by the D compiler.
1161	 * The "D" CTF container is a child of the "C" CTF container.
1162	 */
1163	if ((dmp = dtp->dt_ddefs = dt_module_create(dtp, "D")) == NULL)
1164		return (set_open_errno(dtp, errp, EDT_NOMEM));
1165
1166	if ((dmp->dm_ctfp = ctf_create(&dtp->dt_ctferr)) == NULL)
1167		return (set_open_errno(dtp, errp, EDT_CTF));
1168
1169	dt_dprintf("created CTF container for %s (%p)\n",
1170	    dmp->dm_name, (void *)dmp->dm_ctfp);
1171
1172	(void) ctf_setmodel(dmp->dm_ctfp, dtp->dt_conf.dtc_ctfmodel);
1173	ctf_setspecific(dmp->dm_ctfp, dmp);
1174
1175	dmp->dm_flags = DT_DM_LOADED; /* fake up loaded bit */
1176	dmp->dm_modid = -1; /* no module ID */
1177
1178	if (ctf_import(dmp->dm_ctfp, dtp->dt_cdefs->dm_ctfp) == CTF_ERR) {
1179		dt_dprintf("failed to import D parent container: %s\n",
1180		    ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1181		return (set_open_errno(dtp, errp, EDT_CTF));
1182	}
1183
1184	/*
1185	 * Fill the dynamic "D" CTF container with all of the built-in typedefs
1186	 * that we need to use for our D variable and function definitions.
1187	 * This ensures that basic inttypes.h names are always available to us.
1188	 */
1189	for (; dtyp->dty_src != NULL; dtyp++) {
1190		if (ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1191		    dtyp->dty_dst, ctf_lookup_by_name(dmp->dm_ctfp,
1192		    dtyp->dty_src)) == CTF_ERR) {
1193			dt_dprintf("failed to add typedef %s %s to D "
1194			    "container: %s", dtyp->dty_src, dtyp->dty_dst,
1195			    ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1196			return (set_open_errno(dtp, errp, EDT_CTF));
1197		}
1198	}
1199
1200	/*
1201	 * Insert a CTF ID corresponding to a pointer to a type of kind
1202	 * CTF_K_FUNCTION we can use in the compiler for function pointers.
1203	 * CTF treats all function pointers as "int (*)()" so we only need one.
1204	 */
1205	ctc.ctc_return = ctf_lookup_by_name(dmp->dm_ctfp, "int");
1206	ctc.ctc_argc = 0;
1207	ctc.ctc_flags = 0;
1208
1209	dtp->dt_type_func = ctf_add_funcptr(dmp->dm_ctfp,
1210	    CTF_ADD_ROOT, &ctc, NULL);
1211
1212	dtp->dt_type_fptr = ctf_add_pointer(dmp->dm_ctfp, CTF_ADD_ROOT, NULL,
1213	    dtp->dt_type_func);
1214
1215	/*
1216	 * We also insert CTF definitions for the special D intrinsic types
1217	 * string and <DYN> into the D container.  The string type is added
1218	 * as a typedef of char[n].  The <DYN> type is an alias for void.
1219	 * We compare types to these special CTF ids throughout the compiler.
1220	 */
1221	ctr.ctr_contents = ctf_lookup_by_name(dmp->dm_ctfp, "char");
1222	ctr.ctr_index = ctf_lookup_by_name(dmp->dm_ctfp, "long");
1223	ctr.ctr_nelems = _dtrace_strsize;
1224
1225	dtp->dt_type_str = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1226	    "string", ctf_add_array(dmp->dm_ctfp, CTF_ADD_ROOT, &ctr));
1227
1228	dtp->dt_type_dyn = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1229	    "<DYN>", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1230
1231	dtp->dt_type_stack = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1232	    "stack", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1233
1234	dtp->dt_type_symaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1235	    "_symaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1236
1237	dtp->dt_type_usymaddr = ctf_add_typedef(dmp->dm_ctfp, CTF_ADD_ROOT,
1238	    "_usymaddr", ctf_lookup_by_name(dmp->dm_ctfp, "void"));
1239
1240	if (dtp->dt_type_func == CTF_ERR || dtp->dt_type_fptr == CTF_ERR ||
1241	    dtp->dt_type_str == CTF_ERR || dtp->dt_type_dyn == CTF_ERR ||
1242	    dtp->dt_type_stack == CTF_ERR || dtp->dt_type_symaddr == CTF_ERR ||
1243	    dtp->dt_type_usymaddr == CTF_ERR) {
1244		dt_dprintf("failed to add intrinsic to D container: %s\n",
1245		    ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1246		return (set_open_errno(dtp, errp, EDT_CTF));
1247	}
1248
1249	if (ctf_update(dmp->dm_ctfp) != 0) {
1250		dt_dprintf("failed update D container: %s\n",
1251		    ctf_errmsg(ctf_errno(dmp->dm_ctfp)));
1252		return (set_open_errno(dtp, errp, EDT_CTF));
1253	}
1254
1255	/*
1256	 * Initialize the integer description table used to convert integer
1257	 * constants to the appropriate types.  Refer to the comments above
1258	 * dt_node_int() for a complete description of how this table is used.
1259	 */
1260	for (i = 0; i < sizeof (dtp->dt_ints) / sizeof (dtp->dt_ints[0]); i++) {
1261		if (dtrace_lookup_by_type(dtp, DTRACE_OBJ_EVERY,
1262		    dtp->dt_ints[i].did_name, &dtt) != 0) {
1263			dt_dprintf("failed to lookup integer type %s: %s\n",
1264			    dtp->dt_ints[i].did_name,
1265			    dtrace_errmsg(dtp, dtrace_errno(dtp)));
1266			return (set_open_errno(dtp, errp, dtp->dt_errno));
1267		}
1268		dtp->dt_ints[i].did_ctfp = dtt.dtt_ctfp;
1269		dtp->dt_ints[i].did_type = dtt.dtt_type;
1270	}
1271
1272	/*
1273	 * Now that we've created the "C" and "D" containers, move them to the
1274	 * start of the module list so that these types and symbols are found
1275	 * first (for stability) when iterating through the module list.
1276	 */
1277	dt_list_delete(&dtp->dt_modlist, dtp->dt_ddefs);
1278	dt_list_prepend(&dtp->dt_modlist, dtp->dt_ddefs);
1279
1280	dt_list_delete(&dtp->dt_modlist, dtp->dt_cdefs);
1281	dt_list_prepend(&dtp->dt_modlist, dtp->dt_cdefs);
1282
1283	if (dt_pfdict_create(dtp) == -1)
1284		return (set_open_errno(dtp, errp, dtp->dt_errno));
1285
1286	/*
1287	 * If we are opening libdtrace DTRACE_O_NODEV enable C_ZDEFS by default
1288	 * because without /dev/dtrace open, we will not be able to load the
1289	 * names and attributes of any providers or probes from the kernel.
1290	 */
1291	if (flags & DTRACE_O_NODEV)
1292		dtp->dt_cflags |= DTRACE_C_ZDEFS;
1293
1294	/*
1295	 * Load hard-wired inlines into the definition cache by calling the
1296	 * compiler on the raw definition string defined above.
1297	 */
1298	if ((pgp = dtrace_program_strcompile(dtp, _dtrace_hardwire,
1299	    DTRACE_PROBESPEC_NONE, DTRACE_C_EMPTY, 0, NULL)) == NULL) {
1300		dt_dprintf("failed to load hard-wired definitions: %s\n",
1301		    dtrace_errmsg(dtp, dtrace_errno(dtp)));
1302		return (set_open_errno(dtp, errp, EDT_HARDWIRE));
1303	}
1304
1305	dt_program_destroy(dtp, pgp);
1306
1307	/*
1308	 * Set up the default DTrace library path.  Once set, the next call to
1309	 * dt_compile() will compile all the libraries.  We intentionally defer
1310	 * library processing to improve overhead for clients that don't ever
1311	 * compile, and to provide better error reporting (because the full
1312	 * reporting of compiler errors requires dtrace_open() to succeed).
1313	 */
1314	if (dtrace_setopt(dtp, "libdir", _dtrace_libdir) != 0)
1315		return (set_open_errno(dtp, errp, dtp->dt_errno));
1316
1317	return (dtp);
1318}
1319
1320dtrace_hdl_t *
1321dtrace_open(int version, int flags, int *errp)
1322{
1323	return (dt_vopen(version, flags, errp, NULL, NULL));
1324}
1325
1326dtrace_hdl_t *
1327dtrace_vopen(int version, int flags, int *errp,
1328    const dtrace_vector_t *vector, void *arg)
1329{
1330	return (dt_vopen(version, flags, errp, vector, arg));
1331}
1332
1333void
1334dtrace_close(dtrace_hdl_t *dtp)
1335{
1336	dt_ident_t *idp, *ndp;
1337	dt_module_t *dmp;
1338	dt_provider_t *pvp;
1339	dtrace_prog_t *pgp;
1340	dt_xlator_t *dxp;
1341	dt_dirpath_t *dirp;
1342	int i;
1343
1344	if (dtp->dt_procs != NULL)
1345		dt_proc_fini(dtp);
1346
1347	while ((pgp = dt_list_next(&dtp->dt_programs)) != NULL)
1348		dt_program_destroy(dtp, pgp);
1349
1350	while ((dxp = dt_list_next(&dtp->dt_xlators)) != NULL)
1351		dt_xlator_destroy(dtp, dxp);
1352
1353	dt_free(dtp, dtp->dt_xlatormap);
1354
1355	for (idp = dtp->dt_externs; idp != NULL; idp = ndp) {
1356		ndp = idp->di_next;
1357		dt_ident_destroy(idp);
1358	}
1359
1360	if (dtp->dt_macros != NULL)
1361		dt_idhash_destroy(dtp->dt_macros);
1362	if (dtp->dt_aggs != NULL)
1363		dt_idhash_destroy(dtp->dt_aggs);
1364	if (dtp->dt_globals != NULL)
1365		dt_idhash_destroy(dtp->dt_globals);
1366	if (dtp->dt_tls != NULL)
1367		dt_idhash_destroy(dtp->dt_tls);
1368
1369	while ((dmp = dt_list_next(&dtp->dt_modlist)) != NULL)
1370		dt_module_destroy(dtp, dmp);
1371
1372	while ((pvp = dt_list_next(&dtp->dt_provlist)) != NULL)
1373		dt_provider_destroy(dtp, pvp);
1374
1375	if (dtp->dt_fd != -1)
1376		(void) close(dtp->dt_fd);
1377	if (dtp->dt_ftfd != -1)
1378		(void) close(dtp->dt_ftfd);
1379	if (dtp->dt_cdefs_fd != -1)
1380		(void) close(dtp->dt_cdefs_fd);
1381	if (dtp->dt_ddefs_fd != -1)
1382		(void) close(dtp->dt_ddefs_fd);
1383	if (dtp->dt_stdout_fd != -1)
1384		(void) close(dtp->dt_stdout_fd);
1385
1386	dt_epid_destroy(dtp);
1387	dt_aggid_destroy(dtp);
1388	dt_format_destroy(dtp);
1389	dt_strdata_destroy(dtp);
1390	dt_buffered_destroy(dtp);
1391	dt_aggregate_destroy(dtp);
1392	dt_pfdict_destroy(dtp);
1393	dt_provmod_destroy(&dtp->dt_provmod);
1394	dt_dof_fini(dtp);
1395
1396	for (i = 1; i < dtp->dt_cpp_argc; i++)
1397		free(dtp->dt_cpp_argv[i]);
1398
1399	while ((dirp = dt_list_next(&dtp->dt_lib_path)) != NULL) {
1400		dt_list_delete(&dtp->dt_lib_path, dirp);
1401		free(dirp->dir_path);
1402		free(dirp);
1403	}
1404
1405	free(dtp->dt_cpp_argv);
1406	free(dtp->dt_cpp_path);
1407	free(dtp->dt_ld_path);
1408
1409	free(dtp->dt_mods);
1410	free(dtp->dt_provs);
1411	free(dtp);
1412}
1413
1414int
1415dtrace_provider_modules(dtrace_hdl_t *dtp, const char **mods, int nmods)
1416{
1417	dt_provmod_t *prov;
1418	int i = 0;
1419
1420	for (prov = dtp->dt_provmod; prov != NULL; prov = prov->dp_next, i++) {
1421		if (i < nmods)
1422			mods[i] = prov->dp_name;
1423	}
1424
1425	return (i);
1426}
1427
1428int
1429dtrace_ctlfd(dtrace_hdl_t *dtp)
1430{
1431	return (dtp->dt_fd);
1432}
1433