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_PCB_H
28#define	_DT_PCB_H
29
30#pragma ident	"%Z%%M%	%I%	%E% SMI"
31
32#include <dtrace.h>
33#include <setjmp.h>
34#include <stdio.h>
35
36#ifdef	__cplusplus
37extern "C" {
38#endif
39
40#include <dt_parser.h>
41#include <dt_regset.h>
42#include <dt_inttab.h>
43#include <dt_strtab.h>
44#include <dt_decl.h>
45#include <dt_as.h>
46
47typedef struct dt_pcb {
48	dtrace_hdl_t *pcb_hdl;	/* pointer to library handle */
49	struct dt_pcb *pcb_prev; /* pointer to previous pcb in stack */
50	FILE *pcb_fileptr;	/* pointer to input file (or NULL) */
51	char *pcb_filetag;	/* optional file name string (or NULL) */
52	const char *pcb_string;	/* pointer to input string (or NULL) */
53	const char *pcb_strptr;	/* pointer to input position */
54	size_t pcb_strlen;	/* length of pcb_string */
55	int pcb_sargc;		/* number of script arguments (if any) */
56	char *const *pcb_sargv;	/* script argument strings (if any) */
57	ushort_t *pcb_sflagv;	/* script argument flags (DT_IDFLG_* bits) */
58	dt_scope_t pcb_dstack;	/* declaration processing stack */
59	dt_node_t *pcb_list;	/* list of allocated parse tree nodes */
60	dt_node_t *pcb_hold;	/* parse tree nodes on hold until end of defn */
61	dt_node_t *pcb_root;	/* root of current parse tree */
62	dt_idstack_t pcb_globals; /* stack of global identifier hash tables */
63	dt_idhash_t *pcb_locals; /* current hash table of local identifiers */
64	dt_idhash_t *pcb_idents; /* current hash table of ambiguous idents */
65	dt_idhash_t *pcb_pragmas; /* current hash table of pending pragmas */
66	dt_inttab_t *pcb_inttab; /* integer table for constant references */
67	dt_strtab_t *pcb_strtab; /* string table for string references */
68	dt_regset_t *pcb_regs;	/* register set for code generation */
69	dt_irlist_t pcb_ir;	/* list of unrelocated IR instructions */
70	uint_t pcb_asvidx;	/* assembler vartab index (see dt_as.c) */
71	ulong_t **pcb_asxrefs;	/* assembler imported xlators (see dt_as.c) */
72	uint_t pcb_asxreflen;	/* assembler xlator map length (see dt_as.c) */
73	const dtrace_probedesc_t *pcb_pdesc; /* probedesc for current context */
74	struct dt_probe *pcb_probe; /* probe associated with current context */
75	dtrace_probeinfo_t pcb_pinfo; /* info associated with current context */
76	dtrace_attribute_t pcb_amin; /* stability minimum for compilation */
77	dt_node_t *pcb_dret;	/* node containing return type for assembler */
78	dtrace_difo_t *pcb_difo; /* intermediate DIF object made by assembler */
79	dtrace_prog_t *pcb_prog; /* intermediate program made by compiler */
80	dtrace_stmtdesc_t *pcb_stmt; /* intermediate stmt made by compiler */
81	dtrace_ecbdesc_t *pcb_ecbdesc; /* intermediate ecbdesc made by cmplr */
82	jmp_buf pcb_jmpbuf;	/* setjmp(3C) buffer for error return */
83	const char *pcb_region;	/* optional region name for yyerror() suffix */
84	dtrace_probespec_t pcb_pspec; /* probe description evaluation context */
85	uint_t pcb_cflags;	/* optional compilation flags (see dtrace.h) */
86	uint_t pcb_idepth;	/* preprocessor #include nesting depth */
87	yystate_t pcb_yystate;	/* lex/yacc parsing state (see yybegin()) */
88	int pcb_context;	/* yyparse() rules context (DT_CTX_* value) */
89	int pcb_token;		/* token to be returned by yylex() (if != 0) */
90	int pcb_cstate;		/* state to be restored by lexer at state end */
91	int pcb_braces;		/* number of open curly braces in lexer */
92	int pcb_brackets;	/* number of open square brackets in lexer */
93	int pcb_parens;		/* number of open parentheses in lexer */
94} dt_pcb_t;
95
96extern void dt_pcb_push(dtrace_hdl_t *, dt_pcb_t *);
97extern void dt_pcb_pop(dtrace_hdl_t *, int);
98
99#ifdef	__cplusplus
100}
101#endif
102
103#endif	/* _DT_PCB_H */
104