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annotate lwasm/symbol.c @ 215:5330ba70836a

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Fix undefined symbol error with pragma nosymbolcase Made symbol tree lookup handle case sensitivity correctly. It is not sufficient to switch which of strcmp and strcasecmp is used to do the lookups. Instead, one must use strcasecmp all the way until a match and then use additional sorting once a match is achieved, if relevant. In this case, a simple linked list of symbols that differ only in case since this is not expected to be a common case.
author William Astle <lost@l-w.ca>
date Sun, 10 Jun 2012 13:29:23 -0600
parents 07e1fac76321
children 0c4b3e8b4d0b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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
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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
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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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William Astle <lost@l-w.ca>
parents: 207
diff changeset
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))
5330ba70836a Fix undefined symbol error with pragma nosymbolcase
William Astle <lost@l-w.ca>
parents: 207
diff changeset
138 ndir = 1;
5330ba70836a Fix undefined symbol error with pragma nosymbolcase
William Astle <lost@l-w.ca>
parents: 207
diff changeset
139 }
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
140 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
141 {
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
142 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
143 }
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
144 if (!ndir)
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
145 {
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
146 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
147 {
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
148 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
149 }
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 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
151 }
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
152 cdir = ndir;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
153 sprev = se;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
154 if (cdir < 0)
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
155 se = se -> left;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
156 else
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
157 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
158 }
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
159
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
160 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
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 // 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
163 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
164 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
165 }
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
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 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
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 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
170 }
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 // 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
173 // 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
174 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
175
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
176 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
177 nse -> context = context;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
178 nse -> version = version;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
179 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
180 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
181 {
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
182 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
183 }
207
07e1fac76321 Added pragma to allow non case sensitive symbols
William Astle <lost@l-w.ca>
parents: 206
diff changeset
184 if (CURPRAGMA(cl, PRAGMA_SYMBOLNOCASE))
07e1fac76321 Added pragma to allow non case sensitive symbols
William Astle <lost@l-w.ca>
parents: 206
diff changeset
185 {
07e1fac76321 Added pragma to allow non case sensitive symbols
William Astle <lost@l-w.ca>
parents: 206
diff changeset
186 nse -> flags |= symbol_flag_nocase;
07e1fac76321 Added pragma to allow non case sensitive symbols
William Astle <lost@l-w.ca>
parents: 206
diff changeset
187 }
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
188 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
189 nse -> symbol = lw_strdup(sym);
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
190 nse -> right = NULL;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
191 nse -> left = NULL;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
192 nse -> nextver = NULL;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
193 if (se)
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
194 {
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
195 nse -> nextver = se;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
196 nse -> left = se -> left;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
197 nse -> right = se -> right;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
198 se -> left = NULL;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
199 se -> right = NULL;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
200 }
101
ed7f970f3688 Added --define= option to predfine a symbol for assembly
lost@l-w.ca
parents: 82
diff changeset
201 if (cl)
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
202 nse -> section = cl -> csect;
101
ed7f970f3688 Added --define= option to predfine a symbol for assembly
lost@l-w.ca
parents: 82
diff changeset
203 else
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
204 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
205 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
206 {
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
207 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
208 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
209 }
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
210 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
211 {
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 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
213 if (cdir < 0)
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
214 sprev -> left = nse;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
215 else
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
216 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
217 }
206
080bb67d84f2 Add export pragma
William Astle <lost@l-w.ca>
parents: 195
diff changeset
218 if (CURPRAGMA(cl, PRAGMA_EXPORT) && cl -> csect && !islocal)
080bb67d84f2 Add export pragma
William Astle <lost@l-w.ca>
parents: 195
diff changeset
219 {
080bb67d84f2 Add export pragma
William Astle <lost@l-w.ca>
parents: 195
diff changeset
220 exportlist_t *e;
080bb67d84f2 Add export pragma
William Astle <lost@l-w.ca>
parents: 195
diff changeset
221
080bb67d84f2 Add export pragma
William Astle <lost@l-w.ca>
parents: 195
diff changeset
222 /* export symbol if not already exported */
080bb67d84f2 Add export pragma
William Astle <lost@l-w.ca>
parents: 195
diff changeset
223 e = lw_alloc(sizeof(exportlist_t));
080bb67d84f2 Add export pragma
William Astle <lost@l-w.ca>
parents: 195
diff changeset
224 e -> next = as -> exportlist;
080bb67d84f2 Add export pragma
William Astle <lost@l-w.ca>
parents: 195
diff changeset
225 e -> symbol = lw_strdup(sym);
080bb67d84f2 Add export pragma
William Astle <lost@l-w.ca>
parents: 195
diff changeset
226 e -> line = cl;
080bb67d84f2 Add export pragma
William Astle <lost@l-w.ca>
parents: 195
diff changeset
227 e -> se = nse;
080bb67d84f2 Add export pragma
William Astle <lost@l-w.ca>
parents: 195
diff changeset
228 as -> exportlist = e;
080bb67d84f2 Add export pragma
William Astle <lost@l-w.ca>
parents: 195
diff changeset
229 }
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
230 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
231 }
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
232
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
233 // 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
234 // 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
235 // 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
236 // 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
237 // 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
238 // 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
239 // 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
240 // 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
241 // 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
242 // 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
243 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
244 {
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 int local = 0;
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
246 struct symtabe *s;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
247 int cdir;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
248
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
249 // 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
250 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
251 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
252
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
253 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
254 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
255 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
256 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
257
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 // 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
259 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
260 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
261
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
262 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
263 {
215
5330ba70836a Fix undefined symbol error with pragma nosymbolcase
William Astle <lost@l-w.ca>
parents: 207
diff changeset
264 cdir = strcasecmp(sym, s -> symbol);
5330ba70836a Fix undefined symbol error with pragma nosymbolcase
William Astle <lost@l-w.ca>
parents: 207
diff changeset
265 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
266 {
5330ba70836a Fix undefined symbol error with pragma nosymbolcase
William Astle <lost@l-w.ca>
parents: 207
diff changeset
267 if (strcmp(sym, s -> symbol))
5330ba70836a Fix undefined symbol error with pragma nosymbolcase
William Astle <lost@l-w.ca>
parents: 207
diff changeset
268 cdir = 1;
5330ba70836a Fix undefined symbol error with pragma nosymbolcase
William Astle <lost@l-w.ca>
parents: 207
diff changeset
269 }
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
270 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
271 {
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
272 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
273 {
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
274 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
275 }
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
276 }
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
277
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
278 if (!cdir)
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
279 return s;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
280
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
281 if (cdir < 0)
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
282 s = s -> left;
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
283 else
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
284 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
285 }
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
286 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
287 }
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
288
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
289 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
290 {
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
291 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
292 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
293 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
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 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
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 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
299
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 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
301 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
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 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
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 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
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 -> 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
308 {
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 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
310 }
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 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
312 {
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 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
314 }
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 }
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 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
318 }
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
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
320 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
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 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
323 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
324 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
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 li.as = as;
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
327
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
328 if (!se)
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
329 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
330
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
331 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
332
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
333 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
334 {
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
335 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
336 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
337 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
338 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
339 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
340 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
341 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
342 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
343 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
344 {
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 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
346 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
347 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
348 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
349 }
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 (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
351 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
352 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
353 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
354
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(']', 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 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
357 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
358
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 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
360 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
361 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
362 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
363 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
364 {
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 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
366 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
367 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
368 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
369 }
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
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 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
372 {
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 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
374 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
375 {
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 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
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 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
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 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
381 {
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 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
383 // 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
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 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
386 }
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
387
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
388 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
389 }
195
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
390
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
391 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
392 {
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
393 fprintf(of, "\nSymbol Table:\n");
17bd59f045af Changed symbol table to use a binary tree.
William Astle <lost@l-w.ca>
parents: 101
diff changeset
394 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
395 }