xref: /titanic_41/usr/src/lib/libdtrace/common/dt_as.h (revision 7c478bd95313f5f23a4c958a745db2134aa03244)
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 2003 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef	_DT_AS_H
28 #define	_DT_AS_H
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 #include <sys/types.h>
33 #include <sys/dtrace.h>
34 
35 #ifdef	__cplusplus
36 extern "C" {
37 #endif
38 
39 struct dt_ident;
40 
41 typedef struct dt_irnode {
42 	uint_t di_label;		/* label number or DT_LBL_NONE */
43 	dif_instr_t di_instr;		/* instruction opcode */
44 	struct dt_ident *di_ident;	/* ident pointer for relocation */
45 	struct dt_irnode *di_next;	/* next instruction */
46 } dt_irnode_t;
47 
48 #define	DT_LBL_NONE	0		/* no label on this instruction */
49 
50 typedef struct dt_irlist {
51 	dt_irnode_t *dl_list;		/* pointer to first node in list */
52 	dt_irnode_t *dl_last;		/* pointer to last node in list */
53 	uint_t dl_len;			/* number of valid instructions */
54 	uint_t dl_label;		/* next label number to assign */
55 } dt_irlist_t;
56 
57 extern void dt_irlist_create(dt_irlist_t *);
58 extern void dt_irlist_destroy(dt_irlist_t *);
59 extern void dt_irlist_append(dt_irlist_t *, dt_irnode_t *);
60 extern uint_t dt_irlist_label(dt_irlist_t *);
61 
62 #ifdef	__cplusplus
63 }
64 #endif
65 
66 #endif	/* _DT_AS_H */
67