Home | History | Annotate | Line # | Download | only in common 
      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	"%Z%%M%	%I%	%E% SMI"
     31 
     32 #include <libctf.h>
     33 #include <dtrace.h>
     34 #include <dt_ident.h>
     35 #include <dt_list.h>
     36 
     37 #ifdef	__cplusplus
     38 extern "C" {
     39 #endif
     40 
     41 struct dt_node;
     42 
     43 typedef 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 
     65 extern 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 
     69 extern 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 
     75 extern dt_xlator_t *dt_xlator_lookup(dtrace_hdl_t *,
     76     struct dt_node *, struct dt_node *, int);
     77 
     78 extern dt_xlator_t *dt_xlator_lookup_id(dtrace_hdl_t *, id_t);
     79 extern dt_ident_t *dt_xlator_ident(dt_xlator_t *, ctf_file_t *, ctf_id_t);
     80 extern struct dt_node *dt_xlator_member(dt_xlator_t *, const char *);
     81 extern int dt_xlator_dynamic(const dt_xlator_t *);
     82 
     83 #ifdef	__cplusplus
     84 }
     85 #endif
     86 
     87 #endif	/* _DT_XLATOR_H */
     88