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annotate lwasm/struct.c @ 41:c6b8b455d67f

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Fix line number sequence after including a file
author lost@l-w.ca
date Sat, 02 Apr 2011 22:33:39 -0600
parents 127e5b1e01c0
children 534bfa3389b0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
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1 /*
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2 struct.c
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3 Copyright © 2010 William Astle
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4
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5 This file is part of LWASM.
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6
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7 LWASM is free software: you can redistribute it and/or modify it under the
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8 terms of the GNU General Public License as published by the Free Software
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9 Foundation, either version 3 of the License, or (at your option) any later
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10 version.
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11
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12 This program is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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15 more details.
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16
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17 You should have received a copy of the GNU General Public License along with
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18 this program. If not, see <http://www.gnu.org/licenses/>.
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19
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20 Contains stuff associated with structure processing
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21 */
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22
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23 #include <string.h>
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24
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25 #include <lw_alloc.h>
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26 #include <lw_string.h>
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27
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28 #include "lwasm.h"
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29 #include "instab.h"
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30
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31 PARSEFUNC(pseudo_parse_struct)
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32 {
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33 structtab_t *s;
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34
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35 if (as -> instruct)
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36 {
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37 lwasm_register_error(as, l, "Attempt to define a structure inside a structure");
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38 return;
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39 }
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40
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41 if (l -> sym == NULL)
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42 {
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43 lwasm_register_error(as, l, "Structure definition with no effect - no symbol");
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44 return;
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45 }
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46
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47 for (s = as -> structs; s; s = s -> next)
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48 {
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49 if (!strcmp(s -> name, l -> sym))
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50 break;
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51 }
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52
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53 if (s)
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54 {
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55 lwasm_register_error(as, l, "Duplicate structure definition");
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56 return;
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57 }
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58
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59 as -> instruct = 1;
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60
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61 s = lw_alloc(sizeof(structtab_t));
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62 s -> name = lw_strdup(l -> sym);
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63 s -> next = as -> structs;
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64 s -> fields = NULL;
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65 s -> size = 0;
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66 as -> structs = s;
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67 as -> cstruct = s;
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68
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69 skip_operand(p);
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70
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71 l -> len = 0;
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72 l -> symset = 1;
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73 }
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74
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75 void pseudo_endstruct_aux(asmstate_t *as, line_t *l, structtab_field_t *e, const char *prefix, int *coff)
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76 {
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77 char *symname = NULL;
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78 lw_expr_t te1, te2;
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79 int len;
0
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80
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81 while (e)
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82 {
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83 if (e -> name)
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84 {
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85 len = strlen(prefix) + strlen(e -> name) + 1;
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86 symname = lw_alloc(len + 1);
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87 sprintf(symname, "%s.%s", prefix, e -> name);
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88 }
0
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89 else
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90 {
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91 len = strlen(prefix) + 30;
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92 symname = lw_alloc(len + 1);
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93 sprintf(symname, "%s.____%d", prefix, *coff);
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94 }
0
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95
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96 // register the symbol
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97 te1 = lw_expr_build(lw_expr_type_int, *coff);
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98 te2 = lw_expr_build(lw_expr_type_oper, lw_expr_oper_plus, te1, l -> addr);
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99 register_symbol(as, l, symname, te2, symbol_flag_nocheck);
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100 lw_expr_destroy(te2);
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101 lw_expr_destroy(te1);
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102
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103 if (e -> substruct)
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104 {
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105 char *t;
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106 len = strlen(symname) + 8;
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107 t = lw_alloc(len + 1);
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108 sprintf(t, "sizeof{%s}", symname);
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109 te1 = lw_expr_build(lw_expr_type_int, e -> substruct -> size);
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110 register_symbol(as, l, t, te1, symbol_flag_nocheck);
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111 lw_expr_destroy(te1);
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112 lw_free(t);
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113 pseudo_endstruct_aux(as, l, e -> substruct -> fields, symname, coff);
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114 }
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115 else
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116 {
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117 *coff += e -> size;
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118 }
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119 e = e -> next;
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120 }
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121 }
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122
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123
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124 PARSEFUNC(pseudo_parse_endstruct)
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125 {
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126 char *t;
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127 int coff = 0;
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128 lw_expr_t te;
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129 int len;
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130
0
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131 if (as -> instruct == 0)
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132 {
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133 lwasm_register_warning(as, l, "endstruct without struct");
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134 skip_operand(p);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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diff changeset
135 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
136 }
10
127e5b1e01c0 Removed use of asprintf() and added Makefile options for cross compiling; also a bugfix with sizeof{} in lwasm
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diff changeset
137
127e5b1e01c0 Removed use of asprintf() and added Makefile options for cross compiling; also a bugfix with sizeof{} in lwasm
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diff changeset
138 len = strlen(as -> cstruct -> name) + 8;
127e5b1e01c0 Removed use of asprintf() and added Makefile options for cross compiling; also a bugfix with sizeof{} in lwasm
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diff changeset
139 t = lw_alloc(len + 1);
127e5b1e01c0 Removed use of asprintf() and added Makefile options for cross compiling; also a bugfix with sizeof{} in lwasm
lost@l-w.ca
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diff changeset
140 sprintf(t, "sizeof{%s}", as -> cstruct -> name);
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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diff changeset
141 te = lw_expr_build(lw_expr_type_int, as -> cstruct -> size);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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142 register_symbol(as, l, t, te, symbol_flag_nocheck);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
143 lw_expr_destroy(te);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
144 lw_free(t);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
145
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
146 l -> soff = as -> cstruct -> size;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
147 as -> instruct = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
148
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
149 skip_operand(p);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
150
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
151 pseudo_endstruct_aux(as, l, as -> cstruct -> fields, as -> cstruct -> name, &coff);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff changeset
152
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
153 l -> len = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
154 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
155
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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diff changeset
156 void register_struct_entry(asmstate_t *as, line_t *l, int size, structtab_t *ss)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
157 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
158 structtab_field_t *e, *e2;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
159
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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diff changeset
160 l -> soff = as -> cstruct -> size;
2c24602be78f 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 e = lw_alloc(sizeof(structtab_field_t));
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff changeset
162 e -> next = NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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diff changeset
163 e -> size = size;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
164 if (l -> sym)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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165 e -> name = lw_strdup(l -> sym);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
166 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
167 e -> name = NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
168 e -> substruct = ss;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff changeset
169 if (as -> cstruct -> fields)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff changeset
170 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
171 for (e2 = as -> cstruct -> fields; e2 -> next; e2 = e2 -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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172 /* do nothing */ ;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
173 e2 -> next = e;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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diff changeset
174 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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parents:
diff changeset
175 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
176 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
177 as -> cstruct -> fields = e;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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178 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
179 as -> cstruct -> size += size;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
180 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
181
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
182 int expand_struct(asmstate_t *as, line_t *l, char **p, char *opc)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
183 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
184 structtab_t *s;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
185 char *t;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
186 lw_expr_t te;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
187 int addr = 0;
10
127e5b1e01c0 Removed use of asprintf() and added Makefile options for cross compiling; also a bugfix with sizeof{} in lwasm
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diff changeset
188 int len;
127e5b1e01c0 Removed use of asprintf() and added Makefile options for cross compiling; also a bugfix with sizeof{} in lwasm
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diff changeset
189
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
190 debug_message(as, 200, "Checking for structure expansion: %s", opc);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
191
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
192 for (s = as -> structs; s; s = s -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
193 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
194 if (!strcmp(opc, s -> name))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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diff changeset
195 break;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
196 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
197
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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diff changeset
198 if (!s)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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diff changeset
199 return -1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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diff changeset
200
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
201 debug_message(as, 10, "Expanding structure: %s", opc);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
202
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
parents:
diff changeset
203 if (!(l -> sym))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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diff changeset
204 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
205 lwasm_register_error(as, l, "Cannot declare a structure without a symbol name.");
2
7317fbe024af Clean up insane number of compiler warnings under -Wall
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diff changeset
206 return -1;
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
207 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
208
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
209 l -> len = s -> size;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
210
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
211 if (as -> instruct)
10
127e5b1e01c0 Removed use of asprintf() and added Makefile options for cross compiling; also a bugfix with sizeof{} in lwasm
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diff changeset
212 {
127e5b1e01c0 Removed use of asprintf() and added Makefile options for cross compiling; also a bugfix with sizeof{} in lwasm
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diff changeset
213 len = strlen(as -> cstruct -> name) + strlen(l -> sym) + 9;
127e5b1e01c0 Removed use of asprintf() and added Makefile options for cross compiling; also a bugfix with sizeof{} in lwasm
lost@l-w.ca
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diff changeset
214 t = lw_alloc(len + 1);
127e5b1e01c0 Removed use of asprintf() and added Makefile options for cross compiling; also a bugfix with sizeof{} in lwasm
lost@l-w.ca
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diff changeset
215 sprintf(t, "sizeof{%s.%s}", as -> cstruct -> name, l -> sym);
127e5b1e01c0 Removed use of asprintf() and added Makefile options for cross compiling; also a bugfix with sizeof{} in lwasm
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diff changeset
216 }
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
217 else
10
127e5b1e01c0 Removed use of asprintf() and added Makefile options for cross compiling; also a bugfix with sizeof{} in lwasm
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diff changeset
218 {
127e5b1e01c0 Removed use of asprintf() and added Makefile options for cross compiling; also a bugfix with sizeof{} in lwasm
lost@l-w.ca
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diff changeset
219 len = strlen(l -> sym) + 8;
127e5b1e01c0 Removed use of asprintf() and added Makefile options for cross compiling; also a bugfix with sizeof{} in lwasm
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diff changeset
220 t = lw_alloc(len + 1);
127e5b1e01c0 Removed use of asprintf() and added Makefile options for cross compiling; also a bugfix with sizeof{} in lwasm
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diff changeset
221 sprintf(t, "sizeof{%s}", l -> sym);
127e5b1e01c0 Removed use of asprintf() and added Makefile options for cross compiling; also a bugfix with sizeof{} in lwasm
lost@l-w.ca
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diff changeset
222 }
0
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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diff changeset
223 te = lw_expr_build(lw_expr_type_int, s -> size);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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diff changeset
224 register_symbol(as, l, t, te, symbol_flag_nocheck);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
225 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
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diff changeset
226 lw_free(t);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
lost@l-w.ca
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diff changeset
227
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization
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diff changeset
228 if (as -> instruct)
10
127e5b1e01c0 Removed use of asprintf() and added Makefile options for cross compiling; also a bugfix with sizeof{} in lwasm
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parents: 2
diff changeset
229 {
127e5b1e01c0 Removed use of asprintf() and added Makefile options for cross compiling; also a bugfix with sizeof{} in lwasm
lost@l-w.ca
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diff changeset
230 len = strlen(as -> cstruct -> name) + strlen(l -> sym) + 1;
127e5b1e01c0 Removed use of asprintf() and added Makefile options for cross compiling; also a bugfix with sizeof{} in lwasm
lost@l-w.ca
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diff changeset
231 t = lw_alloc(len + 1);
127e5b1e01c0 Removed use of asprintf() and added Makefile options for cross compiling; also a bugfix with sizeof{} in lwasm
lost@l-w.ca
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diff changeset
232 sprintf(t, "%s.%s", as -> cstruct -> name, l -> sym);
127e5b1e01c0 Removed use of asprintf() and added Makefile options for cross compiling; also a bugfix with sizeof{} in lwasm
lost@l-w.ca
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diff changeset
233 }
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
234 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
235 t = lw_strdup(l -> 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
236 pseudo_endstruct_aux(as, l, s -> fields, t, &addr);
2c24602be78f 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 lw_free(t);
2c24602be78f 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 l -> symset = 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
239 if (as -> instruct)
2c24602be78f 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 register_struct_entry(as, l, s -> size, 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
241 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
242 }
2c24602be78f 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