aicasm_symbol.h revision 26997 
1/*
2 * Aic7xxx SCSI host adapter firmware asssembler symbol table definitions
3 *
4 * Copyright (c) 1997 Justin T. Gibbs.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions, and the following disclaimer,
12 *    without modification, immediately at the beginning of the file.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 *    derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 *      $Id: symbol.h,v 1.1 1997/03/16 07:08:19 gibbs Exp $
32 */
33
34#include <sys/queue.h>
35
36typedef enum {
37	UNINITIALIZED,
38	REGISTER,
39	ALIAS,
40	SCBLOC,
41	SRAMLOC,
42	MASK,
43	BIT,
44	CONST,
45	LABEL,
46	CONDITIONAL
47}symtype;
48
49typedef enum {
50	RO = 0x01,
51	WO = 0x02,
52	RW = 0x03
53}amode_t;
54
55struct reg_info {
56	u_int8_t address;
57	int	 size;
58	amode_t	 mode;
59	u_int8_t valid_bitmask;
60	int	 typecheck_masks;
61};
62
63typedef SLIST_HEAD(symlist, symbol_node) symlist_t;
64
65struct mask_info {
66	symlist_t symrefs;
67	u_int8_t mask;
68};
69
70struct const_info {
71	u_int8_t value;
72	int	 define;
73};
74
75struct alias_info {
76	struct symbol *parent;
77};
78
79struct label_info {
80	int	address;
81};
82
83struct cond_info {
84	int	value;
85};
86
87typedef struct expression_info {
88        symlist_t       referenced_syms;
89        int             value;
90} expression_t;
91
92typedef struct symbol {
93	char	*name;
94	symtype	type;
95	union	{
96		struct reg_info *rinfo;
97		struct mask_info *minfo;
98		struct const_info *cinfo;
99		struct alias_info *ainfo;
100		struct label_info *linfo;
101		struct cond_info *condinfo;
102	}info;
103} symbol_t;
104
105typedef struct symbol_ref {
106	symbol_t *symbol;
107	int	 offset;
108} symbol_ref_t;
109
110typedef struct symbol_node {
111	SLIST_ENTRY(symbol_node) links;
112	symbol_t *symbol;
113}symbol_node_t;
114
115typedef struct patch {
116        STAILQ_ENTRY(patch) links;
117	int	  negative;
118	int	  begin;
119        int	  end;
120	int	  options;
121} patch_t;
122
123void	symbol_delete __P((symbol_t *symbol));
124
125void	symtable_open __P((void));
126
127void	symtable_close __P((void));
128
129symbol_t *
130	symtable_get __P((char *name));
131
132symbol_node_t *
133	symlist_search __P((symlist_t *symlist, char *symname));
134
135void
136	symlist_add __P((symlist_t *symlist, symbol_t *symbol, int how));
137#define SYMLIST_INSERT_HEAD	0x00
138#define SYMLIST_SORT		0x01
139
140void	symlist_free __P((symlist_t *symlist));
141
142void	symlist_merge __P((symlist_t *symlist_dest, symlist_t *symlist_src1,
143			   symlist_t *symlist_src2));
144void	symtable_dump __P((FILE *ofile));
145