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Added basic symbol table structure
author lost@l-w.ca
date Fri, 28 Jan 2011 22:35:04 -0700
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children 49d608aecc4d
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28:9ac1c97d01db 29:bc96cd02fbf4
1 /*
2 symtab.h
3
4 Copyright © 2011 William Astle
5
6 This file is part of LWTOOLS.
7
8 LWTOOLS is free software: you can redistribute it and/or modify it under the
9 terms of the GNU General Public License as published by the Free Software
10 Foundation, either version 3 of the License, or (at your option) any later
11 version.
12
13 This program is distributed in the hope that it will be useful, but WITHOUT
14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16 more details.
17
18 You should have received a copy of the GNU General Public License along with
19 this program. If not, see <http://www.gnu.org/licenses/>.
20 */
21
22 /*
23 Symbol table handling
24 */
25
26 #ifndef __symtab_h_seen__
27 #define __symtab_h_seen__
28
29 #ifndef __symtab_c_seen__
30 #define __E extern
31 #else
32 #define __E
33 #endif
34
35 /*
36 the meaning of "addr" and "symtype" is defined by the particular context
37 in which the symbol table is used
38 */
39 typedef struct symtab_entry_s symtab_entry_t;
40 struct symtab_entry_s
41 {
42 char *name; /* name of the symbol */
43 int addr; /* address of symbol */
44 int symtype; /* type of symbol */
45
46 symtab_entry_t *next; /* next in the list */
47 };
48
49 typedef struct symtab_s
50 {
51 symtab_entry_t *head;
52 } symtab_t;
53
54 __E symtab_t *symtab_init(void);
55 __E void symtab_destroy(symtab_t *st);
56 __E symtab_entry_t *symtab_find(symtab_t *st, char *name);
57 __E void symtab_register(symtab_t *st, char *name, int addr, int symtype);
58
59 #undef __E
60
61 #endif /* __symtab_h_seen__ */