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annotate lwasm/symbol.c @ 287:d2f04fa0103b ccdev

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Set up .hgignore to ignore the lwcc driver program.
author William Astle <lost@l-w.ca>
date Sun, 08 Sep 2013 12:37:57 -0600
parents f45b2a68c3da
children d149e2b56981
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
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1 /*
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2 symbol.c
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3
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4 Copyright © 2010 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 #include <stdio.h>
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23 #include <stdlib.h>
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24 #include <string.h>
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25
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26 #include <lw_alloc.h>
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27 #include <lw_expr.h>
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28 #include <lw_string.h>
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29
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30 #include "lwasm.h"
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31
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32 #if 0
0
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33 struct symtabe *symbol_findprev(asmstate_t *as, struct symtabe *se)
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34 {
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35 struct symtabe *se1, *se2;
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36 int i;
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37
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38 for (se2 = NULL, se1 = as -> symtab.head; se1; se1 = se1 -> next)
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39 {
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40 debug_message(as, 200, "Sorting; looking at symbol %s (%p) for %s", se1 -> symbol, se1, se -> symbol);
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41 /* compare se with se1 */
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42 i = strcasecmp(se -> symbol, se1 -> symbol);
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43
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44 /* if the symbol sorts before se1, we just need to return */
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45 if (i < 0)
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46 return se2;
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47
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48 if (i == 0)
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49 {
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50 /* symbol name matches; compare other things */
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51
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52 /*if next version is greater than this one, return */
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53 if (se -> version > se1 -> version)
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54 return se2;
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55 /* if next context is great than this one, return */
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56 if (se -> context > se1 -> context)
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57 return se2;
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58
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59 /* if section name is greater, return */
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60 /* if se has no section but se1 does, we go first */
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61 if (se -> section == NULL && se1 -> section != NULL)
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62 return se2;
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63 if (se -> section != NULL && se1 -> section != NULL)
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64 {
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65 /* compare section names and if se < se1, return */
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66 i = strcasecmp(se -> section -> name, se1 -> section -> name);
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67 if (i < 0)
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68 return se2;
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69 }
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70 }
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71
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72 se2 = se1;
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73 }
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74 return se2;
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75 }
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76 #endif
0
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77 struct symtabe *register_symbol(asmstate_t *as, line_t *cl, char *sym, lw_expr_t val, int flags)
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78 {
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79 struct symtabe *se, *nse;
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80 struct symtabe *sprev;
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81 int islocal = 0;
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82 int context = -1;
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83 int version = -1;
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84 char *cp;
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85 int cdir;
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86
0
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87 debug_message(as, 200, "Register symbol %s (%02X), %s", sym, flags, lw_expr_print(val));
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88
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89 if (!(flags & symbol_flag_nocheck))
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90 {
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91 if (!sym || !*sym)
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92 {
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93 lwasm_register_error(as, cl, "Bad symbol (%s)", sym);
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94 return NULL;
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95 }
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96 if (*sym < 0x80 && (!strchr(SSYMCHARS, *sym) && !strchr(sym + 1, '$') && !strchr(sym + 1, '@') && !strchr(sym + 1, '?')))
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97 {
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98 lwasm_register_error(as, cl, "Bad symbol (%s)", sym);
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99 return NULL;
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100 }
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101
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102 if ((*sym == '$' || *sym == '@') && (sym[1] >= '0' && sym[1] <= '9'))
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103 {
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104 lwasm_register_error(as, cl, "Bad symbol (%s)", sym);
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105 return NULL;
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106 }
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107 }
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108
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109 for (cp = sym; *cp; cp++)
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110 {
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111 if (*cp == '@' || *cp == '?')
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112 islocal = 1;
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113 if (*cp == '$' && !(CURPRAGMA(cl, PRAGMA_DOLLARNOTLOCAL)))
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114 islocal = 1;
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115
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116 // bad symbol
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117 if (!(flags & symbol_flag_nocheck) && *cp < 0x80 && !strchr(SYMCHARS, *cp))
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118 {
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119 lwasm_register_error(as, cl, "Bad symbol (%s)", sym);
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120 return NULL;
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121 }
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122 }
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123
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124 if (islocal)
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125 context = cl -> context;
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126
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127 // first, look up symbol to see if it is already defined
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128 cdir = 0;
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129 for (se = as -> symtab.head, sprev = NULL; se; )
0
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130 {
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131 int ndir;
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132 debug_message(as, 300, "Symbol add lookup: %p", se);
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133 ndir = strcasecmp(sym, se -> symbol);
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134 // if (!ndir && !CURPRAGMA(cl, PRAGMA_SYMBOLNOCASE) && !(se -> flags & symbol_flag_set))
5330ba70836a Fix undefined symbol error with pragma nosymbolcase
William Astle <lost@l-w.ca>
parents: 207
diff changeset
135 if (!ndir && !(se -> flags & symbol_flag_set))
5330ba70836a Fix undefined symbol error with pragma nosymbolcase
William Astle <lost@l-w.ca>
parents: 207
diff changeset
136 {
5330ba70836a Fix undefined symbol error with pragma nosymbolcase
William Astle <lost@l-w.ca>
parents: 207
diff changeset
137 if (strcmp(sym, se -> symbol))
261
f45b2a68c3da Make case insensitive symbols error out on duplication
William Astle <lost@l-w.ca>
parents: 259
diff changeset
138 {
f45b2a68c3da Make case insensitive symbols error out on duplication
William Astle <lost@l-w.ca>
parents: 259
diff changeset
139 if (!CURPRAGMA(cl, PRAGMA_SYMBOLNOCASE) && !(se -> flags & symbol_flag_nocase))
f45b2a68c3da Make case insensitive symbols error out on duplication
William Astle <lost@l-w.ca>
parents: 259
diff changeset
140 ndir = 1;
f45b2a68c3da Make case insensitive symbols error out on duplication
William Astle <lost@l-w.ca>
parents: 259
diff changeset
141 }
215
5330ba70836a Fix undefined symbol error with pragma nosymbolcase
William Astle <lost@l-w.ca>
parents: 207
diff changeset
142 }
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
143 if (!ndir && se -> context != context)
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
144 {
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
145 ndir = (context < se -> context) ? -1 : 1;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
146 }
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
147 if (!ndir)
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
148 {
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
149 if ((flags & symbol_flag_set) && (se -> flags & symbol_flag_set))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
150 {
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
151 version = se -> version;
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
152 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
153 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
154 }
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
155 cdir = ndir;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
156 sprev = se;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
157 if (cdir < 0)
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
158 se = se -> left;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
159 else
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
160 se = se -> right;
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
161 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
162
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
163 if (se && version == -1)
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
164 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
165 // multiply defined symbol
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
166 lwasm_register_error(as, cl, "Multiply defined symbol (%s)", sym);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
167 return NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
168 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
169
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
170 if (flags & symbol_flag_set)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
171 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
172 version++;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
173 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
174
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
175 // symplify the symbol expression - replaces "SET" symbols with
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
176 // symbol table entries
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
177 lwasm_reduce_expr(as, val);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
178
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
179 nse = lw_alloc(sizeof(struct symtabe));
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
180 nse -> context = context;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
181 nse -> version = version;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
182 nse -> flags = flags;
82
adf4ce03a6a3 Made pragma nolist suppress listing symbols defined under the pragma when listing the symbol table
Lost Wizard (lost@starbug3)
parents: 75
diff changeset
183 if (CURPRAGMA(cl, PRAGMA_NOLIST))
adf4ce03a6a3 Made pragma nolist suppress listing symbols defined under the pragma when listing the symbol table
Lost Wizard (lost@starbug3)
parents: 75
diff changeset
184 {
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
185 nse -> flags |= symbol_flag_nolist;
82
adf4ce03a6a3 Made pragma nolist suppress listing symbols defined under the pragma when listing the symbol table
Lost Wizard (lost@starbug3)
parents: 75
diff changeset
186 }
207
07e1fac76321 Added pragma to allow non case sensitive symbols
William Astle <lost@l-w.ca>
parents: 206
diff changeset
187 if (CURPRAGMA(cl, PRAGMA_SYMBOLNOCASE))
07e1fac76321 Added pragma to allow non case sensitive symbols
William Astle <lost@l-w.ca>
parents: 206
diff changeset
188 {
07e1fac76321 Added pragma to allow non case sensitive symbols
William Astle <lost@l-w.ca>
parents: 206
diff changeset
189 nse -> flags |= symbol_flag_nocase;
07e1fac76321 Added pragma to allow non case sensitive symbols
William Astle <lost@l-w.ca>
parents: 206
diff changeset
190 }
259
0c4b3e8b4d0b Fix pragma nosymbolcase interaction with -D
William Astle <lost@l-w.ca>
parents: 215
diff changeset
191 if (!cl && (as -> pragmas & PRAGMA_SYMBOLNOCASE))
0c4b3e8b4d0b Fix pragma nosymbolcase interaction with -D
William Astle <lost@l-w.ca>
parents: 215
diff changeset
192 {
0c4b3e8b4d0b Fix pragma nosymbolcase interaction with -D
William Astle <lost@l-w.ca>
parents: 215
diff changeset
193 nse -> flags |= symbol_flag_nocase;
0c4b3e8b4d0b Fix pragma nosymbolcase interaction with -D
William Astle <lost@l-w.ca>
parents: 215
diff changeset
194 }
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
195 nse -> value = lw_expr_copy(val);
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
196 nse -> symbol = lw_strdup(sym);
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
197 nse -> right = NULL;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
198 nse -> left = NULL;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
199 nse -> nextver = NULL;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
200 if (se)
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
201 {
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
202 nse -> nextver = se;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
203 nse -> left = se -> left;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
204 nse -> right = se -> right;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
205 se -> left = NULL;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
206 se -> right = NULL;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
207 }
101
ed7f970f3688 Added --define= option to predfine a symbol for assembly
lost@l-w.ca
parents: 82
diff changeset
208 if (cl)
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
209 nse -> section = cl -> csect;
101
ed7f970f3688 Added --define= option to predfine a symbol for assembly
lost@l-w.ca
parents: 82
diff changeset
210 else
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
211 nse -> section = NULL;
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
212 if (!sprev)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
213 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
214 debug_message(as, 200, "Adding symbol at head of symbol table");
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
215 as -> symtab.head = nse;
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
216 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
217 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
218 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
219 debug_message(as, 200, "Adding symbol in middle of symbol table");
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
220 if (cdir < 0)
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
221 sprev -> left = nse;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
222 else
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
223 sprev -> right = nse;
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
224 }
206
080bb67d84f2 Add export pragma
William Astle <lost@l-w.ca>
parents: 195
diff changeset
225 if (CURPRAGMA(cl, PRAGMA_EXPORT) && cl -> csect && !islocal)
080bb67d84f2 Add export pragma
William Astle <lost@l-w.ca>
parents: 195
diff changeset
226 {
080bb67d84f2 Add export pragma
William Astle <lost@l-w.ca>
parents: 195
diff changeset
227 exportlist_t *e;
080bb67d84f2 Add export pragma
William Astle <lost@l-w.ca>
parents: 195
diff changeset
228
080bb67d84f2 Add export pragma
William Astle <lost@l-w.ca>
parents: 195
diff changeset
229 /* export symbol if not already exported */
080bb67d84f2 Add export pragma
William Astle <lost@l-w.ca>
parents: 195
diff changeset
230 e = lw_alloc(sizeof(exportlist_t));
080bb67d84f2 Add export pragma
William Astle <lost@l-w.ca>
parents: 195
diff changeset
231 e -> next = as -> exportlist;
080bb67d84f2 Add export pragma
William Astle <lost@l-w.ca>
parents: 195
diff changeset
232 e -> symbol = lw_strdup(sym);
080bb67d84f2 Add export pragma
William Astle <lost@l-w.ca>
parents: 195
diff changeset
233 e -> line = cl;
080bb67d84f2 Add export pragma
William Astle <lost@l-w.ca>
parents: 195
diff changeset
234 e -> se = nse;
080bb67d84f2 Add export pragma
William Astle <lost@l-w.ca>
parents: 195
diff changeset
235 as -> exportlist = e;
080bb67d84f2 Add export pragma
William Astle <lost@l-w.ca>
parents: 195
diff changeset
236 }
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
237 return nse;
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
238 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
239
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
240 // for "SET" symbols, always returns the LAST definition of the
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
241 // symbol. This works because the lwasm_reduce_expr() call in
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
242 // register_symbol will ensure there are no lingering "var" references
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
243 // to the set symbol anywhere in the symbol table; they will all be
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
244 // converted to direct references
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
245 // NOTE: this means that for a forward reference to a SET symbol,
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
246 // the LAST definition will be the one used.
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
247 // This arrangement also ensures that any reference to the symbol
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
248 // itself inside a "set" definition will refer to the previous version
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
249 // of the symbol.
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
250 struct symtabe * lookup_symbol(asmstate_t *as, line_t *cl, char *sym)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
251 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
252 int local = 0;
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
253 struct symtabe *s;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
254 int cdir;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
255
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
256 // check if this is a local symbol
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
257 if (strchr(sym, '@') || strchr(sym, '?'))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
258 local = 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
259
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
260 if (cl && !CURPRAGMA(cl, PRAGMA_DOLLARNOTLOCAL) && strchr(sym, '$'))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
261 local = 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
262 if (!cl && !(as -> pragmas & PRAGMA_DOLLARNOTLOCAL) && strchr(sym, '$'))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
263 local = 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
264
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
265 // cannot look up local symbol in global context!!!!!
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
266 if (!cl && local)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
267 return NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
268
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
269 for (s = as -> symtab.head; s; )
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
270 {
215
5330ba70836a Fix undefined symbol error with pragma nosymbolcase
William Astle <lost@l-w.ca>
parents: 207
diff changeset
271 cdir = strcasecmp(sym, s -> symbol);
5330ba70836a Fix undefined symbol error with pragma nosymbolcase
William Astle <lost@l-w.ca>
parents: 207
diff changeset
272 if (!cdir && !(s->flags & symbol_flag_nocase))
5330ba70836a Fix undefined symbol error with pragma nosymbolcase
William Astle <lost@l-w.ca>
parents: 207
diff changeset
273 {
5330ba70836a Fix undefined symbol error with pragma nosymbolcase
William Astle <lost@l-w.ca>
parents: 207
diff changeset
274 if (strcmp(sym, s -> symbol))
5330ba70836a Fix undefined symbol error with pragma nosymbolcase
William Astle <lost@l-w.ca>
parents: 207
diff changeset
275 cdir = 1;
5330ba70836a Fix undefined symbol error with pragma nosymbolcase
William Astle <lost@l-w.ca>
parents: 207
diff changeset
276 }
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
277 if (!cdir)
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
278 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
279 if (local && s -> context != cl -> context)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
280 {
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
281 cdir = (cl -> context < s -> context) ? -1 : 1;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
282 }
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
283 }
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
284
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
285 if (!cdir)
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
286 return s;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
287
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
288 if (cdir < 0)
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
289 s = s -> left;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
290 else
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
291 s = s -> right;
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
292 }
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
293 return NULL;
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
294 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
295
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
296 struct listinfo
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
297 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
298 sectiontab_t *sect;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
299 asmstate_t *as;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
300 int complex;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
301 };
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
302
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
303 int list_symbols_test(lw_expr_t e, void *p)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
304 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
305 struct listinfo *li = p;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
306
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
307 if (li -> complex)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
308 return 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
309
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
310 if (lw_expr_istype(e, lw_expr_type_special))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
311 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
312 if (lw_expr_specint(e) == lwasm_expr_secbase)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
313 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
314 if (li -> sect)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
315 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
316 li -> complex = 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
317 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
318 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
319 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
320 li -> sect = lw_expr_specptr(e);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
321 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
322 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
323 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
324 return 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
325 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
326
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
327 void list_symbols_aux(asmstate_t *as, FILE *of, struct symtabe *se)
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
328 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
329 struct symtabe *s;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
330 lw_expr_t te;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
331 struct listinfo li;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
332
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
333 li.as = as;
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
334
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
335 if (!se)
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
336 return;
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
337
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
338 list_symbols_aux(as, of, se -> left);
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
339
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
340 for (s = se; s; s = s -> nextver)
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
341 {
82
adf4ce03a6a3 Made pragma nolist suppress listing symbols defined under the pragma when listing the symbol table
Lost Wizard (lost@starbug3)
parents: 75
diff changeset
342 if (s -> flags & symbol_flag_nolist)
adf4ce03a6a3 Made pragma nolist suppress listing symbols defined under the pragma when listing the symbol table
Lost Wizard (lost@starbug3)
parents: 75
diff changeset
343 continue;
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
344 lwasm_reduce_expr(as, s -> value);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
345 fputc('[', of);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
346 if (s -> flags & symbol_flag_set)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
347 fputc('S', of);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
348 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
349 fputc(' ', of);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
350 if (as -> output_format == OUTPUT_OBJ)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
351 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
352 if (lw_expr_istype(s -> value, lw_expr_type_int))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
353 fputc('c', of);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
354 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
355 fputc('s', of);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
356 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
357 if (s -> context < 0)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
358 fputc('G', of);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
359 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
360 fputc('L', of);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
361
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
362 fputc(']', of);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
363 fputc(' ', of);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
364 fprintf(of, "%-32s ", s -> symbol);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
365
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
366 te = lw_expr_copy(s -> value);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
367 li.complex = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
368 li.sect = NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
369 lw_expr_testterms(te, list_symbols_test, &li);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
370 if (li.sect)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
371 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
372 as -> exportcheck = 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
373 as -> csect = li.sect;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
374 lwasm_reduce_expr(as, te);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
375 as -> exportcheck = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
376 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
377
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
378 if (lw_expr_istype(te, lw_expr_type_int))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
379 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
380 fprintf(of, "%04X", lw_expr_intval(te));
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
381 if (li.sect)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
382 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
383 fprintf(of, " (%s)", li.sect -> name);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
384 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
385 fprintf(of, "\n");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
386 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
387 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
388 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
389 fprintf(of, "<<incomplete>>\n");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
390 // fprintf(of, "%s\n", lw_expr_print(s -> value));
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
391 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
392 lw_expr_destroy(te);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
393 }
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
394
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
395 list_symbols_aux(as, of, se -> right);
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
396 }
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
397
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
398 void list_symbols(asmstate_t *as, FILE *of)
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
399 {
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
400 fprintf(of, "\nSymbol Table:\n");
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
401 list_symbols_aux(as, of, as -> symtab.head);
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
402 }