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