1 | /*
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2 | ** apibreak.c
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3 | **
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4 | */
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5 |
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6 | #include <stdlib.h>
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7 | #include <string.h>
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8 |
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9 | #include "mruby.h"
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10 | #include "mruby/irep.h"
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11 | #include "mrdb.h"
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12 | #include "mruby/debug.h"
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13 | #include "mruby/opcode.h"
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14 | #include "mruby/class.h"
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15 | #include "mruby/proc.h"
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16 | #include "mruby/variable.h"
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17 | #include "mrdberror.h"
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18 | #include "apibreak.h"
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19 |
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20 | #define MAX_BREAKPOINTNO (MAX_BREAKPOINT * 1024)
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21 | #define MRB_DEBUG_BP_FILE_OK (0x0001)
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22 | #define MRB_DEBUG_BP_LINENO_OK (0x0002)
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23 |
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24 | static uint16_t
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25 | check_lineno(mrb_irep_debug_info_file *info_file, uint16_t lineno)
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26 | {
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27 | uint32_t count = info_file->line_entry_count;
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28 | uint16_t l_idx;
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29 |
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30 | if (info_file->line_type == mrb_debug_line_ary) {
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31 | for (l_idx = 0; l_idx < count; ++l_idx) {
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32 | if (lineno == info_file->lines.ary[l_idx]) {
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33 | return lineno;
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34 | }
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35 | }
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36 | }
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37 | else {
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38 | for (l_idx = 0; l_idx < count; ++l_idx) {
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39 | if (lineno == info_file->lines.flat_map[l_idx].line) {
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40 | return lineno;
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41 | }
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42 | }
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43 | }
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44 |
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45 | return 0;
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46 | }
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47 |
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48 | static int32_t
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49 | get_break_index(mrb_debug_context *dbg, uint32_t bpno)
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50 | {
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51 | uint32_t i;
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52 | int32_t index;
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53 | char hit = FALSE;
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54 |
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55 | for (i = 0; i < dbg->bpnum; i++) {
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56 | if (dbg->bp[i].bpno == bpno) {
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57 | hit = TRUE;
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58 | index = i;
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59 | break;
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60 | }
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61 | }
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62 |
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63 | if (hit == FALSE) {
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64 | return MRB_DEBUG_BREAK_INVALID_NO;
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65 | }
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66 |
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67 | return index;
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68 | }
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69 |
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70 | static void
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71 | free_breakpoint(mrb_state *mrb, mrb_debug_breakpoint *bp)
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72 | {
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73 | switch (bp->type) {
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74 | case MRB_DEBUG_BPTYPE_LINE:
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75 | mrb_free(mrb, (void*)bp->point.linepoint.file);
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76 | break;
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77 | case MRB_DEBUG_BPTYPE_METHOD:
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78 | mrb_free(mrb, (void*)bp->point.methodpoint.method_name);
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79 | if (bp->point.methodpoint.class_name != NULL) {
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80 | mrb_free(mrb, (void*)bp->point.methodpoint.class_name);
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81 | }
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82 | break;
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83 | default:
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84 | break;
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85 | }
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86 | }
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87 |
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88 | static uint16_t
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89 | check_file_lineno(struct mrb_irep *irep, const char *file, uint16_t lineno)
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90 | {
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91 | mrb_irep_debug_info_file *info_file;
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92 | uint16_t result = 0;
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93 | uint16_t f_idx;
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94 | uint16_t fix_lineno;
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95 | uint16_t i;
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96 |
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97 | for (f_idx = 0; f_idx < irep->debug_info->flen; ++f_idx) {
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98 | info_file = irep->debug_info->files[f_idx];
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99 | if (!strcmp(info_file->filename, file)) {
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100 | result = MRB_DEBUG_BP_FILE_OK;
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101 |
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102 | fix_lineno = check_lineno(info_file, lineno);
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103 | if (fix_lineno != 0) {
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104 | return result | MRB_DEBUG_BP_LINENO_OK;
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105 | }
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106 | }
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107 | for (i = 0; i < irep->rlen; ++i) {
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108 | result |= check_file_lineno(irep->reps[i], file, lineno);
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109 | if (result == (MRB_DEBUG_BP_FILE_OK | MRB_DEBUG_BP_LINENO_OK)) {
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110 | return result;
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111 | }
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112 | }
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113 | }
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114 | return result;
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115 | }
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116 |
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117 | static const char*
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118 | get_class_name(mrb_state *mrb, struct RClass *class_obj)
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119 | {
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120 | struct RClass *outer;
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121 | mrb_sym class_sym;
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122 |
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123 | outer = mrb_class_outer_module(mrb, class_obj);
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124 | class_sym = mrb_class_sym(mrb, class_obj, outer);
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125 | return mrb_sym2name(mrb, class_sym);
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126 | }
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127 |
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128 | static int32_t
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129 | compare_break_method(mrb_state *mrb, mrb_debug_breakpoint *bp, struct RClass *class_obj, mrb_sym method_sym, mrb_bool* isCfunc)
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130 | {
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131 | const char* class_name;
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132 | const char* method_name;
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133 | struct RProc* m;
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134 | struct RClass* sc;
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135 | const char* sn;
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136 | mrb_sym ssym;
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137 | mrb_debug_methodpoint *method_p;
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138 | mrb_bool is_defined;
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139 |
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140 | method_name = mrb_sym2name(mrb, method_sym);
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141 |
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142 | method_p = &bp->point.methodpoint;
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143 | if (strcmp(method_p->method_name, method_name) == 0) {
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144 | class_name = get_class_name(mrb, class_obj);
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145 | if (class_name == NULL) {
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146 | if (method_p->class_name == NULL) {
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147 | return bp->bpno;
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148 | }
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149 | }
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150 | else if (method_p->class_name != NULL) {
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151 | m = mrb_method_search_vm(mrb, &class_obj, method_sym);
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152 | if (m == NULL) {
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153 | return MRB_DEBUG_OK;
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154 | }
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155 | if (MRB_PROC_CFUNC_P(m)) {
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156 | *isCfunc = TRUE;
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157 | }
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158 |
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159 | is_defined = mrb_class_defined(mrb, method_p->class_name);
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160 | if (is_defined == FALSE) {
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161 | return MRB_DEBUG_OK;
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162 | }
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163 |
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164 | sc = mrb_class_get(mrb, method_p->class_name);
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165 | ssym = mrb_symbol(mrb_check_intern_cstr(mrb, method_p->method_name));
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166 | m = mrb_method_search_vm(mrb, &sc, ssym);
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167 | if (m == NULL) {
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168 | return MRB_DEBUG_OK;
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169 | }
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170 |
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171 | class_name = get_class_name(mrb, class_obj);
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172 | sn = get_class_name(mrb, sc);
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173 | if (strcmp(sn, class_name) == 0) {
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174 | return bp->bpno;
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175 | }
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176 | }
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177 | }
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178 | return MRB_DEBUG_OK;
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179 | }
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180 |
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181 | int32_t
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182 | mrb_debug_set_break_line(mrb_state *mrb, mrb_debug_context *dbg, const char *file, uint16_t lineno)
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183 | {
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184 | int32_t index;
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185 | char* set_file;
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186 | uint16_t result;
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187 |
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188 | if ((mrb == NULL) || (dbg == NULL) || (file == NULL)) {
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189 | return MRB_DEBUG_INVALID_ARGUMENT;
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190 | }
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191 |
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192 | if (dbg->bpnum >= MAX_BREAKPOINT) {
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193 | return MRB_DEBUG_BREAK_NUM_OVER;
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194 | }
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195 |
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196 | if (dbg->next_bpno > MAX_BREAKPOINTNO) {
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197 | return MRB_DEBUG_BREAK_NO_OVER;
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198 | }
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199 |
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200 | /* file and lineno check (line type mrb_debug_line_ary only.) */
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201 | result = check_file_lineno(dbg->root_irep, file, lineno);
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202 | if (result == 0) {
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203 | return MRB_DEBUG_BREAK_INVALID_FILE;
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204 | }
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205 | else if (result == MRB_DEBUG_BP_FILE_OK) {
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206 | return MRB_DEBUG_BREAK_INVALID_LINENO;
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207 | }
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208 |
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209 | int len = strlen(file) + 1;
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210 | set_file = (char *)mrb_malloc(mrb, len);
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211 |
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212 | index = dbg->bpnum;
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213 | dbg->bp[index].bpno = dbg->next_bpno;
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214 | dbg->next_bpno++;
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215 | dbg->bp[index].enable = TRUE;
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216 | dbg->bp[index].type = MRB_DEBUG_BPTYPE_LINE;
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217 | dbg->bp[index].point.linepoint.lineno = lineno;
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218 | dbg->bpnum++;
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219 |
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220 | strlcpy(set_file, file, len);
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221 |
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222 | dbg->bp[index].point.linepoint.file = set_file;
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223 |
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224 | return dbg->bp[index].bpno;
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225 | }
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226 |
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227 | int32_t
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228 | mrb_debug_set_break_method(mrb_state *mrb, mrb_debug_context *dbg, const char *class_name, const char *method_name)
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229 | {
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230 | int32_t index;
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231 | char* set_class;
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232 | char* set_method;
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233 | int len;
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234 |
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235 | if ((mrb == NULL) || (dbg == NULL) || (method_name == NULL)) {
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236 | return MRB_DEBUG_INVALID_ARGUMENT;
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237 | }
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238 |
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239 | if (dbg->bpnum >= MAX_BREAKPOINT) {
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240 | return MRB_DEBUG_BREAK_NUM_OVER;
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241 | }
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242 |
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243 | if (dbg->next_bpno > MAX_BREAKPOINTNO) {
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244 | return MRB_DEBUG_BREAK_NO_OVER;
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245 | }
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246 |
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247 | if (class_name != NULL) {
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248 | len = strlen(class_name) + 1;
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249 | set_class = (char *)mrb_malloc(mrb, len);
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250 | strlcpy(set_class, class_name, len);
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251 | }
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252 | else {
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253 | set_class = NULL;
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254 | }
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255 |
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256 | len = strlen(method_name) + 1;
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257 | set_method = (char *)mrb_malloc(mrb, len);
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258 |
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259 | strlcpy(set_method, method_name, len);
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260 |
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261 | index = dbg->bpnum;
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262 | dbg->bp[index].bpno = dbg->next_bpno;
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263 | dbg->next_bpno++;
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264 | dbg->bp[index].enable = TRUE;
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265 | dbg->bp[index].type = MRB_DEBUG_BPTYPE_METHOD;
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266 | dbg->bp[index].point.methodpoint.method_name = set_method;
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267 | dbg->bp[index].point.methodpoint.class_name = set_class;
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268 | dbg->bpnum++;
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269 |
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270 | return dbg->bp[index].bpno;
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271 | }
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272 |
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273 | int32_t
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274 | mrb_debug_get_breaknum(mrb_state *mrb, mrb_debug_context *dbg)
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275 | {
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276 | if ((mrb == NULL) || (dbg == NULL)) {
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277 | return MRB_DEBUG_INVALID_ARGUMENT;
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278 | }
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279 |
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280 | return dbg->bpnum;
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281 | }
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282 |
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283 | int32_t
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284 | mrb_debug_get_break_all(mrb_state *mrb, mrb_debug_context *dbg, uint32_t size, mrb_debug_breakpoint bp[])
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285 | {
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286 | uint32_t get_size = 0;
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287 |
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288 | if ((mrb == NULL) || (dbg == NULL) || (bp == NULL)) {
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289 | return MRB_DEBUG_INVALID_ARGUMENT;
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290 | }
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291 |
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292 | if (dbg->bpnum >= size) {
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293 | get_size = size;
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294 | }
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295 | else {
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296 | get_size = dbg->bpnum;
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297 | }
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298 |
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299 | memcpy(bp, dbg->bp, sizeof(mrb_debug_breakpoint) * get_size);
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300 |
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301 | return get_size;
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302 | }
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303 |
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304 | int32_t
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305 | mrb_debug_get_break(mrb_state *mrb, mrb_debug_context *dbg, uint32_t bpno, mrb_debug_breakpoint *bp)
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306 | {
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307 | int32_t index;
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308 |
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309 | if ((mrb == NULL) || (dbg == NULL) || (bp == NULL)) {
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310 | return MRB_DEBUG_INVALID_ARGUMENT;
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311 | }
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312 |
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313 | index = get_break_index(dbg, bpno);
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314 | if (index == MRB_DEBUG_BREAK_INVALID_NO) {
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315 | return MRB_DEBUG_BREAK_INVALID_NO;
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316 | }
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317 |
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318 | bp->bpno = dbg->bp[index].bpno;
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319 | bp->enable = dbg->bp[index].enable;
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320 | bp->point = dbg->bp[index].point;
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321 | bp->type = dbg->bp[index].type;
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322 |
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323 | return 0;
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324 | }
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325 |
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326 | int32_t
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327 | mrb_debug_delete_break(mrb_state *mrb, mrb_debug_context *dbg, uint32_t bpno)
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328 | {
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329 | uint32_t i;
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330 | int32_t index;
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331 |
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332 | if ((mrb == NULL) || (dbg == NULL)) {
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333 | return MRB_DEBUG_INVALID_ARGUMENT;
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334 | }
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335 |
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336 | index = get_break_index(dbg, bpno);
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337 | if (index == MRB_DEBUG_BREAK_INVALID_NO) {
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338 | return MRB_DEBUG_BREAK_INVALID_NO;
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339 | }
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340 |
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341 | free_breakpoint(mrb, &dbg->bp[index]);
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342 |
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343 | for (i = index; i < dbg->bpnum; i++) {
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344 | if ((i + 1) == dbg->bpnum) {
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345 | memset(&dbg->bp[i], 0, sizeof(mrb_debug_breakpoint));
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346 | }
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347 | else {
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348 | memcpy(&dbg->bp[i], &dbg->bp[i + 1], sizeof(mrb_debug_breakpoint));
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349 | }
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350 | }
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351 |
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352 | dbg->bpnum--;
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353 |
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354 | return MRB_DEBUG_OK;
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355 | }
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356 |
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357 | int32_t
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358 | mrb_debug_delete_break_all(mrb_state *mrb, mrb_debug_context *dbg)
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359 | {
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360 | uint32_t i;
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361 |
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362 | if ((mrb == NULL) || (dbg == NULL)) {
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363 | return MRB_DEBUG_INVALID_ARGUMENT;
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364 | }
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365 |
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366 | for (i = 0; i < dbg->bpnum; i++) {
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367 | free_breakpoint(mrb, &dbg->bp[i]);
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368 | }
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369 |
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370 | dbg->bpnum = 0;
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371 |
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372 | return MRB_DEBUG_OK;
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373 | }
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374 |
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375 | int32_t
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376 | mrb_debug_enable_break(mrb_state *mrb, mrb_debug_context *dbg, uint32_t bpno)
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377 | {
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378 | int32_t index = 0;
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379 |
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380 | if ((mrb == NULL) || (dbg == NULL)) {
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381 | return MRB_DEBUG_INVALID_ARGUMENT;
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382 | }
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383 |
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384 | index = get_break_index(dbg, bpno);
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385 | if (index == MRB_DEBUG_BREAK_INVALID_NO) {
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386 | return MRB_DEBUG_BREAK_INVALID_NO;
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387 | }
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388 |
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389 | dbg->bp[index].enable = TRUE;
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390 |
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391 | return MRB_DEBUG_OK;
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392 | }
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393 |
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394 | int32_t
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395 | mrb_debug_enable_break_all(mrb_state *mrb, mrb_debug_context *dbg)
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396 | {
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397 | uint32_t i;
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398 |
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399 | if ((mrb == NULL) || (dbg == NULL)) {
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400 | return MRB_DEBUG_INVALID_ARGUMENT;
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401 | }
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402 |
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403 | for (i = 0; i < dbg->bpnum; i++) {
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404 | dbg->bp[i].enable = TRUE;
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405 | }
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406 |
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407 | return MRB_DEBUG_OK;
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408 | }
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409 |
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410 | int32_t
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411 | mrb_debug_disable_break(mrb_state *mrb, mrb_debug_context *dbg, uint32_t bpno)
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412 | {
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413 | int32_t index = 0;
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414 |
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415 | if ((mrb == NULL) || (dbg == NULL)) {
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416 | return MRB_DEBUG_INVALID_ARGUMENT;
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417 | }
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418 |
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419 | index = get_break_index(dbg, bpno);
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420 | if (index == MRB_DEBUG_BREAK_INVALID_NO) {
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421 | return MRB_DEBUG_BREAK_INVALID_NO;
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422 | }
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423 |
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424 | dbg->bp[index].enable = FALSE;
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425 |
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426 | return MRB_DEBUG_OK;
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427 | }
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428 |
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429 | int32_t
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430 | mrb_debug_disable_break_all(mrb_state *mrb, mrb_debug_context *dbg)
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431 | {
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432 | uint32_t i;
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433 |
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434 | if ((mrb == NULL) || (dbg == NULL)) {
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435 | return MRB_DEBUG_INVALID_ARGUMENT;
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436 | }
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437 |
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438 | for (i = 0; i < dbg->bpnum; i++) {
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439 | dbg->bp[i].enable = FALSE;
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440 | }
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441 |
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442 | return MRB_DEBUG_OK;
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443 | }
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444 |
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445 | static mrb_bool
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446 | check_start_pc_for_line(mrb_irep *irep, mrb_code *pc, uint16_t line)
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447 | {
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448 | if (pc > irep->iseq) {
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449 | if (line == mrb_debug_get_line(irep, (uint32_t)(pc - irep->iseq - 1))) {
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450 | return FALSE;
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451 | }
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452 | }
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453 | return TRUE;
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454 | }
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455 |
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456 | int32_t
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457 | mrb_debug_check_breakpoint_line(mrb_state *mrb, mrb_debug_context *dbg, const char *file, uint16_t line)
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458 | {
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459 | mrb_debug_breakpoint *bp;
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460 | mrb_debug_linepoint *line_p;
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461 | uint32_t i;
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462 |
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463 | if ((mrb == NULL) || (dbg == NULL) || (file == NULL) || (line <= 0)) {
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464 | return MRB_DEBUG_INVALID_ARGUMENT;
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465 | }
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466 |
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467 | if (!check_start_pc_for_line(dbg->irep, dbg->pc, line)) {
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468 | return MRB_DEBUG_OK;
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469 | }
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470 |
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471 | bp = dbg->bp;
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472 | for (i = 0; i < dbg->bpnum; i++) {
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473 | switch (bp->type) {
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474 | case MRB_DEBUG_BPTYPE_LINE:
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475 | if (bp->enable == TRUE) {
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476 | line_p = &bp->point.linepoint;
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477 | if ((strcmp(line_p->file, file) == 0) && (line_p->lineno == line)) {
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478 | return bp->bpno;
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479 | }
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480 | }
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481 | break;
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482 | case MRB_DEBUG_BPTYPE_METHOD:
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483 | break;
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484 | case MRB_DEBUG_BPTYPE_NONE:
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485 | default:
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486 | return MRB_DEBUG_OK;
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487 | }
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488 | bp++;
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489 | }
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490 | return MRB_DEBUG_OK;
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491 | }
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492 |
|
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493 |
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494 | int32_t
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495 | mrb_debug_check_breakpoint_method(mrb_state *mrb, mrb_debug_context *dbg, struct RClass *class_obj, mrb_sym method_sym, mrb_bool* isCfunc)
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496 | {
|
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497 | mrb_debug_breakpoint *bp;
|
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498 | int32_t bpno;
|
---|
499 | uint32_t i;
|
---|
500 |
|
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501 | if ((mrb == NULL) || (dbg == NULL) || (class_obj == NULL)) {
|
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502 | return MRB_DEBUG_INVALID_ARGUMENT;
|
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503 | }
|
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504 |
|
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505 | bp = dbg->bp;
|
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506 | for (i = 0; i < dbg->bpnum; i++) {
|
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507 | if (bp->type == MRB_DEBUG_BPTYPE_METHOD) {
|
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508 | if (bp->enable == TRUE) {
|
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509 | bpno = compare_break_method(mrb, bp, class_obj, method_sym, isCfunc);
|
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510 | if (bpno > 0) {
|
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511 | return bpno;
|
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512 | }
|
---|
513 | }
|
---|
514 | }
|
---|
515 | else if (bp->type == MRB_DEBUG_BPTYPE_NONE) {
|
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516 | break;
|
---|
517 | }
|
---|
518 | bp++;
|
---|
519 | }
|
---|
520 |
|
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521 | return 0;
|
---|
522 | }
|
---|
523 |
|
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524 |
|
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