Mercurial > paraspace
annotate paraspace/injection.py @ 142:50d09eba5166
Fix the issue of getting negative indices for _DEX_ClassData.
- It caused by calling _optimize_classdata() at end of restore_dependencies()
while the values cames from depend_idx_rel.get_value(). The values had
been optimized.
- Solution is to get value from <child>.data_idx while unlinking.
author | Thinker K.F. Li <thinker@codemud.net> |
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date | Mon, 15 Aug 2011 10:04:12 +0800 |
parents | 372009418896 |
children | 46e40afd4558 |
rev | line source |
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87 | 1 |
88
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2 def _relocatable_children(obj): |
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3 from paraspace.dex_deptracker import _dex_tree_get_child |
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4 from paraspace.dexfile import relocatable, array |
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5 |
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6 if isinstance(obj, array): |
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7 rel_children = [('items.' + str(idx), value) |
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8 for idx, value in enumerate(obj.items) |
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9 if isinstance(value, relocatable)] |
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10 return rel_children |
87 | 11 |
106
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12 attrs = obj.children() |
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13 attr_value_pairs = [(attr, _dex_tree_get_child(obj, attr)) |
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14 for attr in attrs] |
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15 rel_children = [(attr, value) for attr, value in attr_value_pairs |
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16 if isinstance(value, relocatable)] |
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17 return rel_children |
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18 |
87 | 19 |
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20 ## \brief Travel relocatable descendants. |
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21 # |
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22 # \param cloner is the function to return a clone. |
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23 # \param adjuster is called to adjust the clone. |
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24 # \param visit_log is a dictionary to keep clones. |
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25 # |
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26 def _travel_desc_relocatable(obj, worker, visit_log): |
87 | 27 if id(obj) in visit_log: |
28 return visit_log[id(obj)] | |
29 | |
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30 result = worker(obj) |
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31 visit_log[id(obj)] = result |
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32 |
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33 rel_children = _relocatable_children(obj) |
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34 for attr, value in rel_children: |
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35 _travel_desc_relocatable(value, worker, visit_log) |
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36 pass |
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37 pass |
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38 |
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39 |
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40 ## \brief Return name string of a linked class definition item. |
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41 def classdef_name(classdef): |
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42 return classdef.classIdx.descriptorIdx.stringDataOff.data |
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43 |
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44 |
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45 ## \brief Return a map that map type of a object to the list of a DEXFile. |
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46 def dex_type_2_array_attr_map(): |
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47 global dex_type_2_array_attr_map |
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48 from paraspace.dexfile import DEXFile, array |
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49 from paraspace.dex_deptracker import _marker |
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50 |
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51 def skip_marker_type(clazz): |
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52 while isinstance(clazz, _marker): |
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53 clazz = clazz.back_type |
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54 pass |
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55 return clazz |
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56 |
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57 attr_values = [(attr, skip_marker_type(getattr(DEXFile, attr))) |
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58 for attr in dir(DEXFile)] |
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59 array_attrs = [(skip_marker_type(value.child_type), attr) |
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60 for attr, value in attr_values |
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61 if isinstance(value, array)] |
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62 type_2_attr = dict(array_attrs) |
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63 |
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64 dex_type_2_array_attr_map = lambda: type_2_attr |
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65 |
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66 return type_2_attr |
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67 |
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68 |
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69 _saved_dex_type_2_array_attr_map = dex_type_2_array_attr_map |
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70 |
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71 |
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72 ## \brief Append a object to appropriate list of a DEXFile object. |
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73 # |
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74 # Skip the object if found no appropriate list. |
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75 # |
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76 def dex_append_obj_list(dex, obj): |
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77 from paraspace.dex_deptracker import _dex_tree_get_child |
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78 from paraspace.dex_deptracker import _dex_tree_set_child |
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79 from paraspace.dexfile import _DEX_TypeList, _DEX_TypeList_align |
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80 from paraspace.dexfile import array_sorted |
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81 |
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82 if isinstance(obj, _DEX_TypeList): |
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83 wrapper = _DEX_TypeList_align() |
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84 wrapper.value = obj |
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85 obj = wrapper |
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86 pass |
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87 |
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88 type_2_attr = dex_type_2_array_attr_map() |
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89 try: |
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90 attr = type_2_attr[obj.__class__] |
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91 except KeyError: |
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92 return |
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93 |
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94 array = getattr(dex, attr) |
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95 |
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96 if isinstance(array, array_sorted): |
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97 if obj in array.items: |
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98 idx = array.items.index(obj) |
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99 return array.items[idx] |
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100 pass |
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101 |
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102 array.items.append(obj) |
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103 |
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104 count_name = array.count_name |
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105 if count_name: |
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106 count = _dex_tree_get_child(dex, count_name) |
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107 _dex_tree_set_child(dex, count_name, count + 1) |
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108 pass |
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109 |
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110 return obj |
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111 |
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112 |
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113 ## \brief Clone a composite object. |
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114 # |
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115 # \param dex is the DEXFile that the composite object is cloning for. |
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116 # \param comobj is composite object that is cloning. |
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117 # |
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118 def _clone_composite(dex, comobj): |
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119 from copy import copy |
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120 from paraspace.dexfile import _DEX_StringDataItem, _DEX_StringId |
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121 from paraspace.dexfile import _DEX_TypeId |
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122 from paraspace.dex_deptracker import _dex_tree_set_child |
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Test dexfile_redirect_types
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123 from paraspace.dex_deptracker import _dex_tree_get_child |
88
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124 |
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125 visit_log = {} |
87 | 126 |
88
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127 def cloner(obj): |
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128 clone = copy(obj) |
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129 return clone |
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130 |
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131 def relink_dependencies(clone): |
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132 rel_children = _relocatable_children(clone) |
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133 for attr, value in rel_children: |
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134 clone_value = visit_log[id(value)] |
105
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Test dexfile_redirect_types
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diff
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|
135 _dex_tree_set_child(clone, attr, clone_value) |
88
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changeset
|
136 pass |
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|
137 pass |
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|
138 |
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139 def merge_unique_strdata(): |
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140 strdatas = [(obj_id, obj) |
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141 for obj_id, obj in visit_log.items() |
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142 if isinstance(obj, _DEX_StringDataItem)] |
99
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Make sure string data list is consistent.
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diff
changeset
|
143 dex_str_2_strdata = dict([(strdata.data.data, strdata) |
88
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144 for strdata in dex.stringDataItems.items]) |
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145 for obj_id, strdata in strdatas: |
99
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Make sure string data list is consistent.
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diff
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|
146 if strdata.data.data in dex_str_2_strdata: |
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Make sure string data list is consistent.
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diff
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147 visit_log[obj_id] = dex_str_2_strdata[strdata.data.data] |
88
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148 else: |
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149 dex_append_obj_list(dex, strdata) |
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150 pass |
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changeset
|
151 pass |
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152 pass |
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153 |
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154 def merge_unique_strid(): |
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155 strids = [(obj_id, obj) |
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156 for obj_id, obj in visit_log.items() |
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157 if isinstance(obj, _DEX_StringId)] |
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158 |
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159 for obj_id, strid in strids: |
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160 relink_dependencies(strid) |
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161 pass |
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162 |
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163 strdata_2_strid = dict([(strid.stringDataOff, strid) |
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164 for strid in dex.stringIds.items]) |
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165 for obj_id, strid in strids: |
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166 if strid.stringDataOff in strdata_2_strid: |
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167 visit_log[obj_id] = strdata_2_strid[strid.stringDataOff] |
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168 else: |
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169 dex_append_obj_list(dex, strid) |
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diff
changeset
|
170 pass |
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87
diff
changeset
|
171 pass |
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87
diff
changeset
|
172 pass |
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|
173 |
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174 def merge_unique_typeid(): |
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175 typeids = [(obj_id, obj) |
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176 for obj_id, obj in visit_log.items() |
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177 if isinstance(obj, _DEX_TypeId)] |
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178 |
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179 for obj_id, typeid in typeids: |
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180 relink_dependencies(typeid) |
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181 pass |
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182 |
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183 strid_2_typeid = dict([(typeid.descriptorIdx, typeid) |
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184 for typeid in dex.typeIds.items]) |
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185 for obj_id, typeid in typeids: |
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186 if typeid.descriptorIdx in strid_2_typeid: |
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187 visit_log[obj_id] = strid_2_typeid[typeid.descriptorIdx] |
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188 else: |
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189 dex_append_obj_list(dex, typeid) |
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diff
changeset
|
190 pass |
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diff
changeset
|
191 pass |
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87
diff
changeset
|
192 pass |
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193 |
111
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diff
changeset
|
194 _travel_desc_relocatable(comobj, cloner, visit_log) |
88
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195 |
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196 merge_unique_strdata() |
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|
197 merge_unique_strid() |
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|
198 merge_unique_typeid() |
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|
199 |
135
b488ca519709
Make sure elements are absolute incremental for sorted arrays when injecting.
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134
diff
changeset
|
200 relink_list = [] |
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Make sure elements are absolute incremental for sorted arrays when injecting.
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134
diff
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201 for key, obj in visit_log.items(): |
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Make sure elements are absolute incremental for sorted arrays when injecting.
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134
diff
changeset
|
202 if isinstance(obj, (_DEX_StringDataItem, |
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Make sure elements are absolute incremental for sorted arrays when injecting.
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134
diff
changeset
|
203 _DEX_StringId, |
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diff
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204 _DEX_TypeId)): |
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Make sure elements are absolute incremental for sorted arrays when injecting.
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diff
changeset
|
205 continue |
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Make sure elements are absolute incremental for sorted arrays when injecting.
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134
diff
changeset
|
206 r = dex_append_obj_list(dex, obj) |
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Make sure elements are absolute incremental for sorted arrays when injecting.
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134
diff
changeset
|
207 if r and r is not obj: |
b488ca519709
Make sure elements are absolute incremental for sorted arrays when injecting.
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134
diff
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|
208 visit_log[key] = r |
b488ca519709
Make sure elements are absolute incremental for sorted arrays when injecting.
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parents:
134
diff
changeset
|
209 else: |
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Make sure elements are absolute incremental for sorted arrays when injecting.
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parents:
134
diff
changeset
|
210 relink_list.append(obj) |
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Make sure elements are absolute incremental for sorted arrays when injecting.
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parents:
134
diff
changeset
|
211 pass |
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Make sure elements are absolute incremental for sorted arrays when injecting.
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parents:
134
diff
changeset
|
212 pass |
b488ca519709
Make sure elements are absolute incremental for sorted arrays when injecting.
Thinker K.F. Li <thinker@codemud.net>
parents:
134
diff
changeset
|
213 |
b488ca519709
Make sure elements are absolute incremental for sorted arrays when injecting.
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parents:
134
diff
changeset
|
214 for obj in relink_list: |
88
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diff
changeset
|
215 if isinstance(obj, (_DEX_StringDataItem, |
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diff
changeset
|
216 _DEX_StringId, |
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changeset
|
217 _DEX_TypeId)): |
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diff
changeset
|
218 continue |
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diff
changeset
|
219 relink_dependencies(obj) |
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diff
changeset
|
220 pass |
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87
diff
changeset
|
221 |
111
3820379b34e8
Add dexfile_insert_class_relative()
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parents:
110
diff
changeset
|
222 clone = visit_log[id(comobj)] |
3820379b34e8
Add dexfile_insert_class_relative()
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parents:
110
diff
changeset
|
223 return clone |
3820379b34e8
Add dexfile_insert_class_relative()
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parents:
110
diff
changeset
|
224 |
3820379b34e8
Add dexfile_insert_class_relative()
Thinker K.F. Li <thinker@codemud.net>
parents:
110
diff
changeset
|
225 |
3820379b34e8
Add dexfile_insert_class_relative()
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110
diff
changeset
|
226 ## \brief Clone a class definition item |
3820379b34e8
Add dexfile_insert_class_relative()
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diff
changeset
|
227 # |
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Add dexfile_insert_class_relative()
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diff
changeset
|
228 # \param dex is the DEXFile that clazz is cloning for. |
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Add dexfile_insert_class_relative()
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diff
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229 # \param clazz is the class definition item that is cloning. |
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Add dexfile_insert_class_relative()
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110
diff
changeset
|
230 # \return the cloning _DEX_ClassDef. |
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Add dexfile_insert_class_relative()
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parents:
110
diff
changeset
|
231 # |
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Add dexfile_insert_class_relative()
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parents:
110
diff
changeset
|
232 def _clone_classdef(dex, clazz): |
3820379b34e8
Add dexfile_insert_class_relative()
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parents:
110
diff
changeset
|
233 from paraspace.dexfile import DEXFile_linked, _DEX_ClassDef |
3820379b34e8
Add dexfile_insert_class_relative()
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parents:
110
diff
changeset
|
234 |
3820379b34e8
Add dexfile_insert_class_relative()
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parents:
110
diff
changeset
|
235 def has_classdef(clazz): |
3820379b34e8
Add dexfile_insert_class_relative()
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parents:
110
diff
changeset
|
236 classname = DEXFile_linked.get_classdef_name(clazz) |
3820379b34e8
Add dexfile_insert_class_relative()
Thinker K.F. Li <thinker@codemud.net>
parents:
110
diff
changeset
|
237 try: |
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Add dexfile_insert_class_relative()
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parents:
110
diff
changeset
|
238 dex.find_class_name(classname) |
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Add dexfile_insert_class_relative()
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diff
changeset
|
239 except ValueError: |
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Add dexfile_insert_class_relative()
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parents:
110
diff
changeset
|
240 return False |
3820379b34e8
Add dexfile_insert_class_relative()
Thinker K.F. Li <thinker@codemud.net>
parents:
110
diff
changeset
|
241 return True |
3820379b34e8
Add dexfile_insert_class_relative()
Thinker K.F. Li <thinker@codemud.net>
parents:
110
diff
changeset
|
242 |
3820379b34e8
Add dexfile_insert_class_relative()
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parents:
110
diff
changeset
|
243 assert isinstance(clazz, _DEX_ClassDef) |
3820379b34e8
Add dexfile_insert_class_relative()
Thinker K.F. Li <thinker@codemud.net>
parents:
110
diff
changeset
|
244 |
96
1769e52bdd9d
Make dexfile_insert_class() pass the testcase
Thinker K.F. Li <thinker@codemud.net>
parents:
94
diff
changeset
|
245 if has_classdef(clazz): |
88
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Clone objects with meta info
Thinker K.F. Li <thinker@codemud.net>
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246 raise RuntimeError, \ |
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247 'clone a class \'%s\'that is already in the DEXFile' % \ |
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248 classdef_name(clazz) |
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249 |
111
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250 clone = _clone_composite(dex, clazz) |
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251 return clone |
87 | 252 |
253 | |
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254 ## \brief Clone a class definition and insert into a DEXFile. |
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255 # |
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256 # This function clone a class definition from a linked DEXFile and |
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257 # insert it into another one. |
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258 # |
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259 # \param dex is a DEXFile_linked to insert the clone. |
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260 # \param class_def is a class definition going to be cloned. |
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261 # |
111
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262 def dexfile_insert_class(dex, classdef): |
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263 clone = _clone_classdef(dex, classdef) |
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264 return clone |
104 | 265 |
266 | |
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267 ## \brief Collect info of classes mentioned by the code of given class. |
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268 def _find_class_relative(dex, classdef): |
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269 def classify_typeids_defined(dex, typeids): |
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270 classdefs = [] |
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271 undef_typeids = [] |
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272 for typeid in typeids: |
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273 try: |
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274 classdef = dex.find_class_typeid(typeid) |
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275 except ValueError: |
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276 undef_typeids.append(typeid) |
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277 else: |
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278 classdefs.append(classdef) |
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279 pass |
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280 pass |
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281 return classdefs, undef_typeids |
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282 |
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283 typeidxs = collect_typeidxs_mentioned_by_class(dex, classdef) |
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284 typeids = [dex.find_typeid_idx(typeidx) |
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285 for typeidx in typeidxs] |
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286 |
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287 classdefs, typeids = classify_typeids_defined(dex, typeids) |
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288 |
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289 return classdefs, typeids |
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290 |
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291 |
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292 def dexfile_insert_classdefs(dex_dst, dex_src, classdefs): |
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293 clones = [dexfile_insert_class(dex_dst, classdef) |
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294 for classdef in classdefs] |
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295 return clones |
111
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296 |
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297 |
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298 ## \brief Clone and insert a _DEX_TypeId to another DEXFile_linked. |
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299 # |
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300 # \param dex_dst is a DEXFile_linked where the cloning one is inserted. |
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301 # \param dex_src is a DEXFile_linked where the cloned one is from. |
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302 # \param typeid is a _DEX_TypeId that is cloned. |
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303 # \return the cloning _DEX_TypeId. |
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304 # |
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305 def dexfile_insert_typeid(dex_dst, dex_src, typeid): |
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306 from paraspace.dexfile import _DEX_TypeId, DEXFile_linked |
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307 |
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308 assert isinstance(typeid, _DEX_TypeId) |
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309 |
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310 cloning = _clone_composite(dex_dst, typeid) |
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311 |
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312 methodids = dex_src.find_methodids_typeid(dex_src, typeid) |
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313 for methodid in methodids: |
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314 _clone_composite(dex_dst, methodid) |
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315 pass |
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316 |
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317 return cloning |
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318 |
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319 |
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320 ## \brief Clone and insert a list of _DEX_TypeId objects to a DEXFile_linked. |
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321 def dexfile_insert_typeids(dex_dst, dex_src, typeids): |
115
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322 clones = [dexfile_insert_typeid(dex_dst, dex_src, typeid) |
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323 for typeid in typeids] |
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324 return clones |
111
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325 |
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326 |
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327 ## \brief Collects relative type IDs and classes definition for given class. |
114
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328 def collect_classdefs_relative(dex, classdefs): |
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329 rel_classdefs = set(classdefs) |
111
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330 rel_typeids = set() |
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331 |
114
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332 classdef_queue = list(classdefs) |
111
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333 while classdef_queue: |
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334 cur_classdef = classdef_queue.pop(0) |
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335 |
114
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336 classdefs, typeids = _find_class_relative(dex, cur_classdef) |
111
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337 rel_typeids.update(typeids) |
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338 new_classdefs = list(set(classdefs) - rel_classdefs) |
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339 classdef_queue = classdef_queue + new_classdefs |
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340 rel_classdefs.update(new_classdefs) |
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341 pass |
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342 return rel_classdefs, rel_typeids |
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343 |
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344 |
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345 ## \brief Clone and insert given and relative classes into another DEXFile. |
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346 # |
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347 # \param dex_dst is a DEXFile_linked where the class will be inserted. |
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348 # \param dex_src is a DEXFile_linked where the cloned class is from. |
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349 # \param classdef is a _DEX_ClassDef that will be cloned. |
115
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350 # \return a vector of a list of classdefs and a list of typeids. |
111
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351 # |
114
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352 def dexfile_insert_classdefs_relative(dex_dst, dex_src, classdefs): |
111
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353 from paraspace.dexfile import DEXFile_linked |
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354 |
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355 def classdef_not_in_dst(classdef): |
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356 classname = DEXFile_linked.get_classdef_name(classdef) |
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357 try: |
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358 dex_dst.find_class_name(classname) |
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359 except ValueError: |
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360 return True |
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361 return False |
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362 |
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363 def typeid_not_in_dst(typeid): |
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364 typename = DEXFile_linked.get_typeid_name(typeid) |
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365 try: |
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366 dex_dst.find_typeid_name(typename) |
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367 except ValueError: |
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368 return True |
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369 return False |
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370 |
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371 relative_classdefs, relative_typeids = \ |
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372 collect_classdefs_relative(dex_src, classdefs) |
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373 |
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374 for classdef in relative_classdefs: |
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375 if classdef_not_in_dst(classdef): |
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376 continue |
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377 raise ValueError, '%s is already in DEX %s: can not insert it' % \ |
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378 (repr(classdef), repr(dex_dst)) |
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379 |
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380 inserting_typeids = filter(typeid_not_in_dst, relative_typeids) |
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381 |
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382 cloning_classdefs = \ |
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383 dexfile_insert_classdefs(dex_dst, dex_src, relative_classdefs) |
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384 cloning_typeids = \ |
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385 dexfile_insert_typeids(dex_dst, dex_src, inserting_typeids) |
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386 |
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387 return cloning_classdefs, cloning_typeids |
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388 |
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389 |
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390 ## \brief Redirect types and methods for the code of given method. |
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391 def method_redirect_typeidxs(dex, method, typeidxs_redir, methods_redir): |
104 | 392 from paraspace.dalvik_opcodes import decode_insn_blk, all_opcodes |
393 from paraspace.dalvik_opcodes import encode_opcode_vectors | |
394 from paraspace.dexfile import DEXFile_linked | |
395 | |
396 if not method.codeOffRef.is_true: | |
397 return | |
398 | |
399 code = method.codeOffRef.value | |
400 insns_blk = code.insns.data | |
401 op_vectors = decode_insn_blk(insns_blk) | |
402 | |
403 def redirect(opcode, args): | |
404 if opcode == all_opcodes.OP_NEW_INSTANCE: | |
405 typeidx = args[1] | |
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406 if typeidx in typeidxs_redir: |
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407 to_type = typeidxs_redir[typeidx] |
104 | 408 return opcode, (args[0], to_type) |
409 pass | |
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410 elif opcode in (all_opcodes.OP_INVOKE_DIRECT, |
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411 all_opcodes.OP_INVOKE_VIRTUAL, |
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412 all_opcodes.OP_INVOKE_SUPER, |
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413 all_opcodes.OP_INVOKE_STATIC, |
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414 all_opcodes.OP_INVOKE_INTERFACE): |
104 | 415 methodidx = args[2] |
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416 if methodidx not in methods_redir: |
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417 return opcode, args |
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418 |
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419 return opcode, (args[0], args[1], methods_redir[methodidx], |
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420 args[3], args[4], args[5], args[6]) |
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421 elif opcode in (all_opcodes.OP_INVOKE_VIRTUAL_RANGE, |
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422 all_opcodes.OP_INVOKE_DIRECT_RANGE, |
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423 all_opcodes.OP_INVOKE_SUPER_RANGE, |
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424 all_opcodes.OP_INVOKE_STATIC_RANGE, |
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425 all_opcodes.OP_INVOKE_INTERFACE_RANGE): |
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426 methodidx = args[1] |
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427 if methodidx not in methods_redir: |
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428 return opcode, args |
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429 |
138
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430 return opcode, (args[0], methods_redir[methodidx], args[2]) |
104 | 431 return opcode, args |
432 | |
433 new_op_vectors = [redirect(opcode, args) for opcode, args in op_vectors] | |
434 new_insns_blk = encode_opcode_vectors(new_op_vectors) | |
435 | |
436 code.insns.data = new_insns_blk | |
437 pass | |
438 | |
439 | |
108
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440 ## \brief Make a map for methods from source type ID to ones from desinate. |
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441 def make_redir_classes_methods_map(dex_src, typeid_src, |
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442 dex_dst, typeid_dst): |
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443 from paraspace.dexfile import DEXFile_linked |
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444 |
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445 methods_src = [(idx, methodid) |
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446 for idx, methodid in enumerate(dex_src.methodIds.items) |
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447 if methodid.classIdx == typeid_src] |
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448 |
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449 def make_map_methodid(methodid_src): |
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450 name = DEXFile_linked.get_methodid_name(methodid_src) |
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451 proto = methodid_src.protoIdx |
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452 try: |
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453 methodid_dst = \ |
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454 dex_dst.find_methodid_name_proto(name, proto, typeid_dst) |
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455 except ValueError: |
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456 return -1 |
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457 methodidx_dst = dex_dst.get_idx_methodid(methodid_dst) |
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458 return methodidx_dst |
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459 |
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460 methods_map = [(methodidx_src, make_map_methodid(methodid_src)) |
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461 for methodidx_src, methodid_src in methods_src] |
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462 methods_map = [(methodidx_src, methodidx_dst) |
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463 for methodidx_src, methodidx_dst in methods_map |
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464 if methodidx_dst != -1] |
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465 methods_map = dict(methods_map) |
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466 return methods_map |
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467 |
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468 |
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469 ## \brief Redirect types and methods mentioned in the code of a class. |
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470 # |
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471 # For code of given class definition, Every mentions of types and |
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472 # methods are rewrote to types and methods according typeidxs_redir and |
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473 # methods_redir respectively. |
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474 # |
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475 # \param dex is a DEXFile_linked. |
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476 # \param classdef is a class definition. |
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477 # \param typeidxs_redir is a map of types. |
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478 # \param methods_redir is a map of methods. |
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479 # |
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480 def class_redirect_types(dex, classdef, typeidxs_redir, methods_redir): |
104 | 481 if not classdef.classDataOffRef.is_true: |
482 return | |
483 | |
484 classdata = classdef.classDataOffRef.value | |
485 for method in classdata.directMethods.items: | |
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486 method_redirect_typeidxs(dex, method, typeidxs_redir, methods_redir) |
104 | 487 pass |
488 for method in classdata.virtualMethods.items: | |
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489 method_redirect_typeidxs(dex, method, typeidxs_redir, methods_redir) |
104 | 490 pass |
491 pass | |
492 | |
493 | |
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494 ## \brief Make a map to map methods from source types to destinate types. |
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495 # |
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496 # This function create a map to map methods from source types to |
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497 # methods from destinate types in \ref typeidxs_redir. |
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498 # |
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499 # \param dex_src is a DEXFile_linked that owns source types. |
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500 # \param dex_dst is a DEXFile_linked that owns destinate types. |
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501 # \param typeidxs_redir is a map of type indices for redirecting types. |
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502 # \return a map of method indices. |
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503 # |
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504 def make_methodidxs_redir_map(dex_src, dex_dst, typeidxs_redir): |
108
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505 methods_map = {} |
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506 for typeidx_src, typeidx_dst in typeidxs_redir.items(): |
113
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507 typeid_src = dex_src.find_typeid_idx(typeidx_src) |
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508 typeid_dst = dex_dst.find_typeid_idx(typeidx_dst) |
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509 class_methods_map = make_redir_classes_methods_map(dex_src, |
108
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Use method redirection map for defining redirection
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510 typeid_src, |
113
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511 dex_dst, |
108
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512 typeid_dst) |
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513 methods_map.update(class_methods_map) |
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514 pass |
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Use method redirection map for defining redirection
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515 return methods_map |
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516 |
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Use method redirection map for defining redirection
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517 |
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518 ## \biref Redirect types of all code in given DEXFile_linked. |
115
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519 def dexfile_redirect_types(dex, typeidxs_redir, methods_redir, |
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520 excludes=set([])): |
104 | 521 for classdef in dex.classDefs.items: |
522 typeid = classdef.classIdx | |
105
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Test dexfile_redirect_types
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523 idx = dex.get_idx_typeid(typeid) |
104 | 524 if idx in excludes: |
525 continue | |
115
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526 class_redirect_types(dex, classdef, typeidxs_redir, methods_redir) |
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527 pass |
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528 pass |
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529 |
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530 |
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531 ## \brief Redirect types for code of types specified by given indices. |
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532 def dexfile_redirect_types_typeidxs(dex, typeidxs_redir, methodidxs_redir, |
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533 typeidxs): |
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534 typeidxs = set(typeidxs) |
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535 for classdef in dex.classDefs.items: |
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536 typeid = classdef.classIdx |
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537 idx = dex.get_idx_typeid(typeid) |
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538 if idx not in typeidxs: |
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539 continue |
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540 class_redirect_types(dex, classdef, typeidxs_redir, methodidxs_redir) |
104 | 541 pass |
542 pass | |
109
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543 |
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544 |
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545 ## \brief Collect all type indices mentioned in the code of given method. |
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546 # |
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547 # \param method is a \ref _DEX_Method. |
110
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548 # \return a list of type indices mentioned in the code. |
109
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549 # |
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550 def collect_typeidxs_in_method(dex, method): |
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551 from paraspace.dexfile import _DEX_Method, DEXFile_linked |
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552 from paraspace.dalvik_opcodes import decode_insn_blk, all_opcodes |
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553 from itertools import chain |
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Add collect_typeidxs_in_method()
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554 |
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555 assert isinstance(method, _DEX_Method) |
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556 |
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557 def get_typeidx_methodidx(methodidx): |
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558 methodid = dex.find_methodid_idx(methodidx) |
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559 method_typeid = methodid.classIdx |
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560 method_typeidx = dex.get_idx_typeid(method_typeid) |
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561 return method_typeidx |
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562 |
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563 def collect_types_in_op_vector(op_vector): |
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564 code, args = op_vector |
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565 |
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Add collect_typeidxs_in_method()
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566 if code == all_opcodes.OP_NEW_INSTANCE: |
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567 return (args[1],) |
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Add collect_typeidxs_in_method()
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568 |
835336632aba
Add collect_typeidxs_in_method()
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569 if code in (all_opcodes.OP_INVOKE_DIRECT, |
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diff
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570 all_opcodes.OP_INVOKE_VIRTUAL, |
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Add collect_typeidxs_in_method()
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diff
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571 all_opcodes.OP_INVOKE_SUPER, |
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108
diff
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572 all_opcodes.OP_INVOKE_STATIC, |
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Add collect_typeidxs_in_method()
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573 all_opcodes.OP_INVOKE_INTERFACE): |
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Add collect_typeidxs_in_method()
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574 methodidx = args[2] |
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Add collect_typeidxs_in_method()
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575 method_typeidx = get_typeidx_methodidx(methodidx) |
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Add collect_typeidxs_in_method()
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576 return (method_typeidx,) |
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Add collect_typeidxs_in_method()
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diff
changeset
|
577 |
835336632aba
Add collect_typeidxs_in_method()
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diff
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|
578 if code in (all_opcodes.OP_INVOKE_VIRTUAL_RANGE, |
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diff
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579 all_opcodes.OP_INVOKE_DIRECT_RANGE, |
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Add collect_typeidxs_in_method()
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580 all_opcodes.OP_INVOKE_SUPER_RANGE, |
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Add collect_typeidxs_in_method()
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581 all_opcodes.OP_INVOKE_STATIC_RANGE, |
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Add collect_typeidxs_in_method()
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582 all_opcodes.OP_INVOKE_INTERFACE_RANGE): |
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Add collect_typeidxs_in_method()
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583 methodidx = args[1] |
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584 method_typeidx = get_typeidx_methodidx(methodidx) |
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585 return (method_typeidx,) |
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Add collect_typeidxs_in_method()
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diff
changeset
|
586 |
835336632aba
Add collect_typeidxs_in_method()
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diff
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|
587 return () |
835336632aba
Add collect_typeidxs_in_method()
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parents:
108
diff
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|
588 |
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Add collect_typeidxs_in_method()
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108
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589 code_blk = DEXFile_linked.get_code_block_method(method) |
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108
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590 op_vectors = decode_insn_blk(code_blk) |
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Add collect_typeidxs_in_method()
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591 types_insns = [collect_types_in_op_vector(op_vector) |
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Add collect_typeidxs_in_method()
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diff
changeset
|
592 for op_vector in op_vectors] |
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Add collect_typeidxs_in_method()
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108
diff
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593 typeidxs = list(chain(*types_insns)) |
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Add collect_typeidxs_in_method()
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108
diff
changeset
|
594 |
835336632aba
Add collect_typeidxs_in_method()
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108
diff
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|
595 return typeidxs |
110
6380730a80b4
Add collect_typeidxs_mentioned_by_class()
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109
diff
changeset
|
596 |
6380730a80b4
Add collect_typeidxs_mentioned_by_class()
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109
diff
changeset
|
597 |
6380730a80b4
Add collect_typeidxs_mentioned_by_class()
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109
diff
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|
598 ## \brief Collect all type indices mentioned by the code of given class. |
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Add collect_typeidxs_mentioned_by_class()
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599 def collect_typeidxs_mentioned_by_class(dex, classdef): |
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Add collect_typeidxs_mentioned_by_class()
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diff
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600 from paraspace.dexfile import DEXFile_linked |
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Add collect_typeidxs_mentioned_by_class()
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109
diff
changeset
|
601 |
6380730a80b4
Add collect_typeidxs_mentioned_by_class()
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109
diff
changeset
|
602 assert isinstance(dex, DEXFile_linked) |
6380730a80b4
Add collect_typeidxs_mentioned_by_class()
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109
diff
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|
603 |
6380730a80b4
Add collect_typeidxs_mentioned_by_class()
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parents:
109
diff
changeset
|
604 typeidxs = set() |
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Add collect_typeidxs_mentioned_by_class()
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109
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605 methods = DEXFile_linked.get_methods_classdef(classdef) |
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Add collect_typeidxs_mentioned_by_class()
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109
diff
changeset
|
606 for method in methods: |
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Add collect_typeidxs_mentioned_by_class()
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109
diff
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|
607 method_typeidxs = collect_typeidxs_in_method(dex, method) |
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Add collect_typeidxs_mentioned_by_class()
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109
diff
changeset
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608 typeidxs.update(method_typeidxs) |
6380730a80b4
Add collect_typeidxs_mentioned_by_class()
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109
diff
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|
609 pass |
6380730a80b4
Add collect_typeidxs_mentioned_by_class()
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109
diff
changeset
|
610 |
6380730a80b4
Add collect_typeidxs_mentioned_by_class()
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109
diff
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|
611 return list(typeidxs) |
115
d112c27f657a
Add inject_classdefs() for injecting classdef to DEX
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114
diff
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|
612 |
d112c27f657a
Add inject_classdefs() for injecting classdef to DEX
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114
diff
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|
613 |
d112c27f657a
Add inject_classdefs() for injecting classdef to DEX
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114
diff
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|
614 ## \brief Make a mapping for type indices of injection. |
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615 def make_typeidxs_map_after_injection(dex_dst, dex_src, |
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Add inject_classdefs() for injecting classdef to DEX
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616 relative_classdefs, |
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Add inject_classdefs() for injecting classdef to DEX
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diff
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617 relative_typeids): |
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Add inject_classdefs() for injecting classdef to DEX
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114
diff
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618 from paraspace.dexfile import DEXFile_linked |
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|
619 |
d112c27f657a
Add inject_classdefs() for injecting classdef to DEX
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diff
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620 def map_src_dst_typeid(typeid): |
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Add inject_classdefs() for injecting classdef to DEX
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621 idx_src = dex_src.get_idx_typeid(typeid) |
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622 typename = DEXFile_linked.get_typeid_name(typeid) |
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623 typeid_dst = dex_dst.find_typeid_name(typename) |
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624 idx_dst = dex_dst.get_idx_typeid(typeid_dst) |
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625 dex_dst.find_typeid_idx(idx_dst) |
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626 return idx_src, idx_dst |
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627 |
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628 def map_src_dst_classdef(classdef): |
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629 typeid = classdef.classIdx |
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630 idx_src, idx_dst = map_src_dst_typeid(typeid) |
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631 return idx_src, idx_dst |
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632 |
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633 typeidxs_classdefs = [map_src_dst_classdef(classdef) |
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634 for classdef in relative_classdefs] |
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635 typeidxs_typeids = [map_src_dst_typeid(typeid) |
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636 for typeid in relative_typeids] |
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637 typeidxs_map = dict(typeidxs_classdefs + typeidxs_typeids) |
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638 return typeidxs_map |
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639 |
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640 |
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641 ## \brief Redirect code for methods of injected classes. |
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642 def redirect_injected_code(dex_dst, dex_src, classdefs): |
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643 relative_classdefs, relative_typeids = \ |
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644 collect_classdefs_relative(dex_src, classdefs) |
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645 |
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646 typeidxs_redir = \ |
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647 make_typeidxs_map_after_injection(dex_dst, dex_src, \ |
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648 relative_classdefs, \ |
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649 relative_typeids) |
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650 methodidxs_redir = \ |
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651 make_methodidxs_redir_map(dex_src, dex_dst, typeidxs_redir) |
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652 |
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653 dexfile_redirect_types_typeidxs(dex_dst, typeidxs_redir, |
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654 methodidxs_redir, |
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655 typeidxs_redir.values()) |
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656 pass |
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657 |
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658 |
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659 ## \brief Inject classes and relative information to a DEX file. |
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660 # |
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661 # \param dex_dst is a DEXFile_linked where to inject classes. |
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662 # \param dex_src is a DEXFile_linked where the class is from. |
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663 # \param classdefs is a list of _DEX_ClassDef instances from \ref dex_src. |
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664 # \return a list of _DEX_ClassDef instances for injection. |
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665 # |
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666 def inject_classdefs(dex_dst, dex_src, classdefs): |
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667 from paraspace.dexfile import DEXFile_linked |
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668 |
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669 assert isinstance(classdefs, (list, tuple)) |
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670 assert isinstance(dex_dst, DEXFile_linked) |
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671 assert isinstance(dex_src, DEXFile_linked) |
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672 |
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673 injected_classdefs, injected_typeids = \ |
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674 dexfile_insert_classdefs_relative(dex_dst, dex_src, classdefs) |
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675 redirect_injected_code(dex_dst, dex_src, classdefs) |
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676 return injected_classdefs |
131
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677 |
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678 |
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679 ## \brief Inject and redirect a _DEX_ClassDef from one linked to another. |
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680 # |
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681 # The _DEX_ClassDef given by inj_classname would be inserted to dst_linked, |
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682 # and redirect all invoking of type, given by redir_classname, to |
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683 # the injected one. |
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684 # |
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685 def inject_redir_no_restore(src_linked, inj_classname, |
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686 dst_linked, redir_classname, decls): |
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687 inj_classdef = src_linked.find_class_name(inj_classname) |
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688 injected_classdefs = inject_classdefs(dst_linked, src_linked, |
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689 [inj_classdef]) |
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690 |
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691 redir_typeid = dst_linked.find_typeid_name(redir_classname) |
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692 redir_typeidx = dst_linked.get_idx_typeid(redir_typeid) |
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693 inj_typeid = dst_linked.find_typeid_name(inj_classname) |
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694 inj_typeidx = dst_linked.get_idx_typeid(inj_typeid) |
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695 typeidxs_redir = {redir_typeidx: inj_typeidx} |
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696 |
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697 methodidxs_redir = \ |
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698 make_methodidxs_redir_map(dst_linked, dst_linked, typeidxs_redir) |
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699 |
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700 injected_typeidxs = [dst_linked.get_idx_classdef(classdef) |
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701 for classdef in injected_classdefs] |
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702 dexfile_redirect_types(dst_linked, typeidxs_redir, methodidxs_redir, |
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703 excludes=injected_typeidxs) |
135
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704 pass |
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705 |
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706 |
137
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707 ## \brief Make indices map for typeid and methodid. |
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708 # |
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709 # It is used to create indices maps for typeid and methodid after |
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710 # changing order. For example, after sorting sorted array after an |
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711 # injection, this function create maps for remapping indices mentioned |
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712 # in the code. |
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713 # |
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714 def _make_idx_map(saved_typeids, saved_methodids, |
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715 new_typeids, new_methodids): |
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716 methodidxs_map = dict([(idx, new_methodids.index(methodid)) |
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717 for idx, methodid in enumerate(saved_methodids)]) |
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718 typeidxs_map = dict([(idx, new_typeids.index(typeid)) |
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719 for idx, typeid in enumerate(saved_typeids)]) |
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720 return typeidxs_map, methodidxs_map |
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721 |
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722 |
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723 ## \brief Sort sorted arrays and remapping indices for code blocks. |
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724 # |
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725 # Since sorting changes the order of sorted arrays, code blocks should |
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726 # be updated by remapping indices, typeid indices and methodid indices. |
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727 # |
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728 def dex_sort_sorted_arrays_consistent(dex_linked): |
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729 from paraspace.dex_deptracker import dex_sort_sorted_arrays |
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730 |
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731 saved_typeids = list(dex_linked.typeIds.items) |
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732 saved_methodids = list(dex_linked.methodIds.items) |
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733 |
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734 dex_sort_sorted_arrays(dex_linked) |
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735 |
987fead83ce3
Fix issue that dalvik complaining fail to verify code.
Thinker K.F. Li <thinker@codemud.net>
parents:
135
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736 new_typeids = dex_linked.typeIds.items |
987fead83ce3
Fix issue that dalvik complaining fail to verify code.
Thinker K.F. Li <thinker@codemud.net>
parents:
135
diff
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737 new_methodids = dex_linked.methodIds.items |
987fead83ce3
Fix issue that dalvik complaining fail to verify code.
Thinker K.F. Li <thinker@codemud.net>
parents:
135
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738 methodidxs_map, typeidxs_map = \ |
987fead83ce3
Fix issue that dalvik complaining fail to verify code.
Thinker K.F. Li <thinker@codemud.net>
parents:
135
diff
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739 _make_idx_map(saved_typeids, saved_methodids, \ |
987fead83ce3
Fix issue that dalvik complaining fail to verify code.
Thinker K.F. Li <thinker@codemud.net>
parents:
135
diff
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740 new_typeids, new_methodids) |
987fead83ce3
Fix issue that dalvik complaining fail to verify code.
Thinker K.F. Li <thinker@codemud.net>
parents:
135
diff
changeset
|
741 |
987fead83ce3
Fix issue that dalvik complaining fail to verify code.
Thinker K.F. Li <thinker@codemud.net>
parents:
135
diff
changeset
|
742 dexfile_redirect_types(dex_linked, typeidxs_map, methodidxs_map) |
987fead83ce3
Fix issue that dalvik complaining fail to verify code.
Thinker K.F. Li <thinker@codemud.net>
parents:
135
diff
changeset
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743 pass |
987fead83ce3
Fix issue that dalvik complaining fail to verify code.
Thinker K.F. Li <thinker@codemud.net>
parents:
135
diff
changeset
|
744 |
987fead83ce3
Fix issue that dalvik complaining fail to verify code.
Thinker K.F. Li <thinker@codemud.net>
parents:
135
diff
changeset
|
745 |
135
b488ca519709
Make sure elements are absolute incremental for sorted arrays when injecting.
Thinker K.F. Li <thinker@codemud.net>
parents:
134
diff
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746 ## \brief Inject and redirect a _DEX_ClassDef from one linked to another. |
b488ca519709
Make sure elements are absolute incremental for sorted arrays when injecting.
Thinker K.F. Li <thinker@codemud.net>
parents:
134
diff
changeset
|
747 # |
b488ca519709
Make sure elements are absolute incremental for sorted arrays when injecting.
Thinker K.F. Li <thinker@codemud.net>
parents:
134
diff
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|
748 # The _DEX_ClassDef given by inj_classname would be inserted to dst_linked, |
b488ca519709
Make sure elements are absolute incremental for sorted arrays when injecting.
Thinker K.F. Li <thinker@codemud.net>
parents:
134
diff
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749 # and redirect all invoking of type, given by redir_classname, to |
b488ca519709
Make sure elements are absolute incremental for sorted arrays when injecting.
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parents:
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diff
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750 # the injected one. |
b488ca519709
Make sure elements are absolute incremental for sorted arrays when injecting.
Thinker K.F. Li <thinker@codemud.net>
parents:
134
diff
changeset
|
751 # |
b488ca519709
Make sure elements are absolute incremental for sorted arrays when injecting.
Thinker K.F. Li <thinker@codemud.net>
parents:
134
diff
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752 def inject_redir(src_linked, inj_classname, |
b488ca519709
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parents:
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diff
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753 dst_linked, redir_classname, decls): |
b488ca519709
Make sure elements are absolute incremental for sorted arrays when injecting.
Thinker K.F. Li <thinker@codemud.net>
parents:
134
diff
changeset
|
754 from paraspace.dex_deptracker import restore_dependencies |
131
044bfc415577
Fix issue of data map verification.
Thinker K.F. Li <thinker@codemud.net>
parents:
119
diff
changeset
|
755 |
135
b488ca519709
Make sure elements are absolute incremental for sorted arrays when injecting.
Thinker K.F. Li <thinker@codemud.net>
parents:
134
diff
changeset
|
756 inject_redir_no_restore(src_linked, inj_classname, |
b488ca519709
Make sure elements are absolute incremental for sorted arrays when injecting.
Thinker K.F. Li <thinker@codemud.net>
parents:
134
diff
changeset
|
757 dst_linked, redir_classname, decls) |
137
987fead83ce3
Fix issue that dalvik complaining fail to verify code.
Thinker K.F. Li <thinker@codemud.net>
parents:
135
diff
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|
758 dex_sort_sorted_arrays_consistent(dst_linked) |
131
044bfc415577
Fix issue of data map verification.
Thinker K.F. Li <thinker@codemud.net>
parents:
119
diff
changeset
|
759 restore_dependencies(dst_linked, decls) |
044bfc415577
Fix issue of data map verification.
Thinker K.F. Li <thinker@codemud.net>
parents:
119
diff
changeset
|
760 pass |