aicasm_symbol.h revision 50477 
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. The name of the author may not be used to endorse or promote products
14 *    derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD: head/sys/dev/aic7xxx/aicasm/aicasm_symbol.h 50477 1999-08-28 01:08:13Z peter $
29 */
30
31#include <sys/queue.h>
32
33typedef enum {
34	UNINITIALIZED,
35	REGISTER,
36	ALIAS,
37	SCBLOC,
38	SRAMLOC,
39	MASK,
40	BIT,
41	CONST,
42	DOWNLOAD_CONST,
43	LABEL,
44	CONDITIONAL
45}symtype;
46
47typedef enum {
48	RO = 0x01,
49	WO = 0x02,
50	RW = 0x03
51}amode_t;
52
53struct reg_info {
54	u_int8_t address;
55	int	 size;
56	amode_t	 mode;
57	u_int8_t valid_bitmask;
58	int	 typecheck_masks;
59};
60
61typedef SLIST_HEAD(symlist, symbol_node) symlist_t;
62
63struct mask_info {
64	symlist_t symrefs;
65	u_int8_t mask;
66};
67
68struct const_info {
69	u_int8_t value;
70	int	 define;
71};
72
73struct alias_info {
74	struct symbol *parent;
75};
76
77struct label_info {
78	int	address;
79};
80
81struct cond_info {
82	int	func_num;
83};
84
85typedef struct expression_info {
86        symlist_t       referenced_syms;
87        int             value;
88} expression_t;
89
90typedef struct symbol {
91	char	*name;
92	symtype	type;
93	union	{
94		struct reg_info *rinfo;
95		struct mask_info *minfo;
96		struct const_info *cinfo;
97		struct alias_info *ainfo;
98		struct label_info *linfo;
99		struct cond_info *condinfo;
100	}info;
101} symbol_t;
102
103typedef struct symbol_ref {
104	symbol_t *symbol;
105	int	 offset;
106} symbol_ref_t;
107
108typedef struct symbol_node {
109	SLIST_ENTRY(symbol_node) links;
110	symbol_t *symbol;
111}symbol_node_t;
112
113typedef enum {
114	SCOPE_ROOT,
115	SCOPE_IF,
116	SCOPE_ELSE_IF,
117	SCOPE_ELSE
118} scope_type;
119
120typedef struct patch_info {
121	int skip_patch;
122	int skip_instr;
123} patch_info_t;
124
125typedef struct scope {
126	SLIST_ENTRY(scope) scope_stack_links;
127	TAILQ_ENTRY(scope) scope_links;
128	TAILQ_HEAD(, scope) inner_scope;
129	scope_type type;
130	int inner_scope_patches;
131	int begin_addr;
132        int end_addr;
133	patch_info_t patches[2];
134	int func_num;
135} scope_t;
136
137SLIST_HEAD(scope_list, scope);
138TAILQ_HEAD(scope_tailq, scope);
139
140void	symbol_delete __P((symbol_t *symbol));
141
142void	symtable_open __P((void));
143
144void	symtable_close __P((void));
145
146symbol_t *
147	symtable_get __P((char *name));
148
149symbol_node_t *
150	symlist_search __P((symlist_t *symlist, char *symname));
151
152void
153	symlist_add __P((symlist_t *symlist, symbol_t *symbol, int how));
154#define SYMLIST_INSERT_HEAD	0x00
155#define SYMLIST_SORT		0x01
156
157void	symlist_free __P((symlist_t *symlist));
158
159void	symlist_merge __P((symlist_t *symlist_dest, symlist_t *symlist_src1,
160			   symlist_t *symlist_src2));
161void	symtable_dump __P((FILE *ofile));
162