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, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#ifndef	_DT_XLATOR_H
28#define	_DT_XLATOR_H
29
30#pragma ident	"@(#)dt_xlator.h	1.3	05/07/31 SMI"
31
32#include <libctf.h>
33#include <dtrace.h>
34#include <dt_ident.h>
35#include <dt_list.h>
36
37#ifdef	__cplusplus
38extern "C" {
39#endif
40
41struct dt_node;
42
43typedef struct dt_xlator {
44	dt_list_t dx_list;		/* list forward/back pointers */
45	dt_idhash_t *dx_locals;		/* hash of local scope identifiers */
46	dt_ident_t *dx_ident;		/* identifier ref for input param */
47	dt_ident_t dx_souid;		/* fake identifier for sou output */
48	dt_ident_t dx_ptrid;		/* fake identifier for ptr output */
49	ctf_file_t *dx_src_ctfp;	/* CTF container for input type */
50	ctf_id_t dx_src_type;		/* CTF reference for input type */
51	ctf_id_t dx_src_base;		/* CTF reference for input base */
52	ctf_file_t *dx_dst_ctfp;	/* CTF container for output type */
53	ctf_id_t dx_dst_type;		/* CTF reference for output type */
54	ctf_id_t dx_dst_base;		/* CTF reference for output base */
55	struct dt_node *dx_members;	/* list of member translations */
56	uint_t dx_nmembers;		/* length of dx_members list */
57	dtrace_difo_t **dx_membdif;	/* DIF for member expressions */
58	struct dt_node *dx_nodes;	/* list of parse tree nodes */
59	dtrace_hdl_t *dx_hdl;		/* back pointer to containing handle */
60	ulong_t dx_gen;			/* generation number that created me */
61	id_t dx_id;			/* global translator id */
62	int dx_arg;			/* dynamic argument index */
63} dt_xlator_t;
64
65extern dt_xlator_t *dt_xlator_create(dtrace_hdl_t *,
66    const dtrace_typeinfo_t *, const dtrace_typeinfo_t *,
67    const char *, struct dt_node *, struct dt_node *);
68
69extern void dt_xlator_destroy(dtrace_hdl_t *, dt_xlator_t *);
70
71#define	DT_XLATE_FUZZY	0x0		/* lookup any matching translator */
72#define	DT_XLATE_EXACT	0x1		/* lookup only exact type matches */
73#define	DT_XLATE_EXTERN	0x2		/* extern translator if none exists */
74
75extern dt_xlator_t *dt_xlator_lookup(dtrace_hdl_t *,
76    struct dt_node *, struct dt_node *, int);
77
78extern dt_xlator_t *dt_xlator_lookup_id(dtrace_hdl_t *, id_t);
79extern dt_ident_t *dt_xlator_ident(dt_xlator_t *, ctf_file_t *, ctf_id_t);
80extern struct dt_node *dt_xlator_member(dt_xlator_t *, const char *);
81extern int dt_xlator_dynamic(const dt_xlator_t *);
82
83#ifdef	__cplusplus
84}
85#endif
86
87#endif	/* _DT_XLATOR_H */
88