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      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  * Copyright (c) 2013 by Delphix. All rights reserved.
     28  * Copyright (c) 2013 Joyent, Inc. All rights reserved.
     29  */
     30 
     31 #ifndef	_DT_DECL_H
     32 #define	_DT_DECL_H
     33 
     34 #include <sys/types.h>
     35 #include <libctf.h>
     36 #include <dtrace.h>
     37 #include <stdio.h>
     38 
     39 #ifdef	__cplusplus
     40 extern "C" {
     41 #endif
     42 
     43 struct dt_node;				/* forward declaration of dt_node_t */
     44 
     45 typedef struct dt_decl {
     46 	ushort_t dd_kind;		/* declaration kind (CTF_K_* kind) */
     47 	ushort_t dd_attr;		/* attributes (DT_DA_* flags) */
     48 	ctf_file_t *dd_ctfp;		/* CTF container for decl's type */
     49 	ctf_id_t dd_type;		/* CTF identifier for decl's type */
     50 	char *dd_name;			/* string name of this decl (or NULL) */
     51 	struct dt_node *dd_node;	/* node for array size or parm list */
     52 	struct dt_decl *dd_next;	/* next declaration in list */
     53 } dt_decl_t;
     54 
     55 #define	DT_DA_SIGNED	0x0001		/* signed integer value */
     56 #define	DT_DA_UNSIGNED	0x0002		/* unsigned integer value */
     57 #define	DT_DA_SHORT	0x0004		/* short integer value */
     58 #define	DT_DA_LONG	0x0008		/* long integer or double */
     59 #define	DT_DA_LONGLONG	0x0010		/* long long integer value */
     60 #define	DT_DA_CONST	0x0020		/* qualify type as const */
     61 #define	DT_DA_RESTRICT	0x0040		/* qualify type as restrict */
     62 #define	DT_DA_VOLATILE	0x0080		/* qualify type as volatile */
     63 #define	DT_DA_PAREN	0x0100		/* parenthesis tag */
     64 #define	DT_DA_USER	0x0200		/* user-land type specifier */
     65 
     66 typedef enum dt_dclass {
     67 	DT_DC_DEFAULT,			/* no storage class specified */
     68 	DT_DC_AUTO,			/* automatic storage */
     69 	DT_DC_REGISTER,			/* register storage */
     70 	DT_DC_STATIC,			/* static storage */
     71 	DT_DC_EXTERN,			/* extern storage */
     72 	DT_DC_TYPEDEF,			/* type definition */
     73 	DT_DC_SELF,			/* thread-local storage */
     74 	DT_DC_THIS			/* clause-local storage */
     75 } dt_dclass_t;
     76 
     77 typedef struct dt_scope {
     78 	dt_decl_t *ds_decl;		/* pointer to top of decl stack */
     79 	struct dt_scope *ds_next;	/* pointer to next scope */
     80 	char *ds_ident;			/* identifier for this scope (if any) */
     81 	ctf_file_t *ds_ctfp;		/* CTF container for this scope */
     82 	ctf_id_t ds_type;		/* CTF id of enclosing type */
     83 	dt_dclass_t ds_class;		/* declaration class for this scope */
     84 	int ds_enumval;			/* most recent enumerator value */
     85 } dt_scope_t;
     86 
     87 extern dt_decl_t *dt_decl_alloc(ushort_t, char *);
     88 extern void dt_decl_free(dt_decl_t *);
     89 extern void dt_decl_reset(void);
     90 extern dt_decl_t *dt_decl_push(dt_decl_t *);
     91 extern dt_decl_t *dt_decl_pop(void);
     92 extern dt_decl_t *dt_decl_pop_param(char **);
     93 extern dt_decl_t *dt_decl_top(void);
     94 
     95 extern dt_decl_t *dt_decl_ident(char *);
     96 extern void dt_decl_class(dt_dclass_t);
     97 
     98 #define	DT_DP_VARARGS	0x1		/* permit varargs in prototype */
     99 #define	DT_DP_DYNAMIC	0x2		/* permit dynamic type in prototype */
    100 #define	DT_DP_VOID	0x4		/* permit void type in prototype */
    101 #define	DT_DP_ANON	0x8		/* permit anonymous parameters */
    102 
    103 extern int dt_decl_prototype(struct dt_node *, struct dt_node *,
    104     const char *, uint_t);
    105 
    106 extern dt_decl_t *dt_decl_spec(ushort_t, char *);
    107 extern dt_decl_t *dt_decl_attr(ushort_t);
    108 extern dt_decl_t *dt_decl_array(struct dt_node *);
    109 extern dt_decl_t *dt_decl_func(dt_decl_t *, struct dt_node *);
    110 extern dt_decl_t *dt_decl_ptr(void);
    111 
    112 extern dt_decl_t *dt_decl_sou(uint_t, char *);
    113 extern void dt_decl_member(struct dt_node *);
    114 
    115 extern dt_decl_t *dt_decl_enum(char *);
    116 extern void dt_decl_enumerator(char *, struct dt_node *);
    117 
    118 extern int dt_decl_type(dt_decl_t *, dtrace_typeinfo_t *);
    119 
    120 extern void dt_scope_create(dt_scope_t *);
    121 extern void dt_scope_destroy(dt_scope_t *);
    122 extern void dt_scope_push(ctf_file_t *, ctf_id_t);
    123 extern dt_decl_t *dt_scope_pop(void);
    124 
    125 #ifdef	__cplusplus
    126 }
    127 #endif
    128 
    129 #endif	/* _DT_DECL_H */
    130