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Rev | Author | Line No. | Line |
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129 | mikedld | 1 | if ~defined newprocess_inc |
2 | newprocess_inc_fix: |
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3 | newprocess_inc fix newprocess_inc_fix |
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4 | include "mem.inc" |
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5 | include "memmanag.inc" |
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6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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7 | ;;Working with new types of processes. |
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8 | ;;Author: Khalyavin Andrey halyavin@land.ru |
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9 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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10 | iglobal |
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11 | new_process_loading db 'K : New Process - loading',13,10,0 |
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12 | new_process_running db 'K : New Process - done',13,10,0 |
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13 | start_not_enough_memory db 'K : New Process - not enough memory',13,10,0 |
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14 | endg |
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15 | ;----------------------------------------------------------------------------- |
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16 | |||
17 | find_new_process_place: |
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18 | ;input: |
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19 | ; none |
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20 | ;result: |
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21 | ; eax=[new_process_place]<>0 - ok |
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22 | ; 0 - failed. |
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23 | ;This function find least empty slot. |
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24 | ;It doesn't increase [0x3004]! |
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25 | mov eax,0x3000+second_base_address |
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26 | push ebx |
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27 | mov ebx,[0x3004] |
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28 | inc ebx |
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29 | shl ebx,5 |
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30 | add ebx,eax ;ebx - address of process information for (last+1) slot |
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31 | .newprocessplace: |
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32 | ;eax = address of process information for current slot |
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33 | cmp eax,ebx |
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34 | jz .endnewprocessplace ;empty slot after high boundary |
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35 | add eax,0x20 |
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36 | cmp word [eax+TASKDATA.state],9 ;check process state, 9 means that process slot is empty |
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37 | jnz .newprocessplace |
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38 | .endnewprocessplace: |
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39 | mov ebx,eax |
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40 | sub eax,0x3000+second_base_address |
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41 | shr eax,5 ;calculate slot index |
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42 | cmp eax,256 |
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43 | jge .failed ;it should be <256 |
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44 | mov word [ebx+TASKDATA.state],9 ;set process state to 9 (for slot after hight boundary) |
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45 | mov [new_process_place],eax ;save process slot |
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46 | pop ebx |
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47 | ret |
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48 | .failed: |
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49 | xor eax,eax |
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50 | pop ebx |
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51 | ret |
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52 | ;----------------------------------------------------------------------------- |
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53 | safe_sti: |
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54 | cmp byte [0xe000], 1 |
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55 | jne @f |
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56 | sti |
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57 | @@:ret |
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58 | |||
59 | new_start_application_floppy: |
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60 | ;input: |
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61 | ; eax - pointer to filename |
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62 | ; ebx - parameters to pass |
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63 | ; edx - flags |
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64 | ;result: |
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65 | ; eax - pid of new process |
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66 | ; or 0 if call fails. |
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67 | mov [appl_path],edi |
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68 | pushad |
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69 | mov esi,new_process_loading |
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70 | call sys_msg_board_str ;write to debug board |
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71 | |||
72 | ;wait application_table_status mutex |
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73 | .table_status: |
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74 | cli |
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75 | cmp [application_table_status],0 |
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76 | jz .stf |
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77 | sti |
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78 | call change_task |
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79 | jmp .table_status |
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80 | .stf: |
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81 | call set_application_table_status |
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82 | ;we can change system tables now |
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83 | push edi |
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84 | push ebx |
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85 | push eax |
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86 | call find_new_process_place ;find empty process slot |
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87 | sti |
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88 | test eax,eax |
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89 | mov ecx, -0x20 ; too many processes |
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90 | jz .failed |
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91 | |||
92 | mov edi,eax |
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93 | shl edi,8 |
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94 | add edi,0x80000 |
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95 | mov ecx,256/4 |
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96 | xor eax,eax |
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97 | cld |
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98 | rep stosd ;clean extended information about process |
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99 | |||
100 | ;set new process name |
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101 | mov [appl_path_size],eax |
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102 | pop eax |
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103 | push eax |
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104 | .find_last_byte: |
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105 | cmp byte [eax],0 |
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106 | jz .find_last_byte_end |
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107 | inc eax |
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108 | inc [appl_path_size] |
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109 | jmp .find_last_byte |
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110 | .find_last_byte_end: |
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111 | add [appl_path_size],24 |
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112 | sub eax,11 ;last 11 bytes = application name |
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113 | ; mov eax,[esp] ;eax - pointer to file name |
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114 | mov ebx,[new_process_place] |
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115 | shl ebx,8 |
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116 | add ebx,0x80000 + APPDATA.app_name |
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117 | mov ecx,11 |
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118 | call memmove |
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119 | |||
120 | ;read header of file |
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121 | mov eax,[esp] |
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122 | mov ebx,1 ;index of first block |
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123 | mov ecx,2 ;number of blocks |
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124 | mov edx,0x90000 ;temp area |
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125 | mov esi,12 ;file name length |
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126 | mov edi,[esp+8] |
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127 | ; cli |
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128 | call floppy_fileread ;read file from FD |
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129 | ; sti |
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130 | mov ecx, eax |
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131 | neg ecx |
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132 | jnz .cleanfailed |
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133 | ;check MENUET signature |
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134 | mov ecx, -0x1F ; not Menuet/Kolibri executable |
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135 | cmp [0x90000],dword 'MENU' |
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136 | jnz .cleanfailed |
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137 | cmp [0x90004],word 'ET' |
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138 | jnz .cleanfailed |
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139 | |||
140 | call get_app_params ;parse header fields |
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133 | diamond | 141 | jc .cleanfailed |
129 | mikedld | 142 | |
143 | mov eax,[new_process_place] |
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144 | inc ecx ; -0x1E = no memory |
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145 | call create_app_cr3_table ;create page directory for new process |
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146 | test eax,eax |
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147 | jz .cleanfailed_mem |
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148 | |||
149 | call MEM_Get_Linear_Address ;calculate linear address of it |
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150 | |||
151 | mov ebx,std_application_base_address |
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152 | mov ecx,[app_mem] |
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153 | add ecx,4095 |
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154 | shr ecx,12 |
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155 | mov edx,eax |
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156 | call mem_alloc_specified_region ;allocate memory for application |
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157 | test eax,eax |
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158 | mov ecx, -0x1E |
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159 | jz .cleanfailed_mem1 |
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160 | |||
161 | mov eax,[edx+(std_application_base_address shr 20)] |
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162 | and eax,not (4096-1) ;eax - physical address of first (for application memory) page table |
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163 | call MEM_Get_Linear_Address |
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164 | mov edx,eax |
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165 | |||
166 | ;read file |
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167 | mov ebx,1 |
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168 | mov esi,12 ;length of file name |
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169 | .loop1: |
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170 | ;edx = linear address of current page table entry |
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171 | ;ebx = index of current block in file |
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172 | push edx |
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173 | mov eax,[edx] |
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174 | and eax,not (4096-1) |
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175 | call MEM_Get_Linear_Address |
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176 | mov edx,eax ;read file block to current page |
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177 | mov eax,[esp+4] ;restore pointer to file name |
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178 | mov ecx,8 ;number of blocks read |
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133 | diamond | 179 | mov ebp,edx ;save buffer address for .endofimage |
129 | mikedld | 180 | push ebx |
181 | mov edi,[esp+16] |
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182 | ; cli |
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183 | call floppy_fileread |
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184 | ;ebx=file size |
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185 | ; sti |
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186 | pop ecx |
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133 | diamond | 187 | add ecx,8 |
188 | test eax,eax |
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189 | jnz .endloop1 ;check io errors |
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190 | mov eax,[app_i_end] |
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191 | add eax,511 |
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192 | shr eax,9 |
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193 | cmp ecx,eax |
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194 | jg .endofimage ;we have loaded whole program |
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195 | add ebx,511 |
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129 | mikedld | 196 | shr ebx,9 |
197 | cmp ecx,ebx |
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198 | jg .endloop1 ;if end of file? |
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199 | mov ebx,ecx |
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200 | pop edx |
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201 | add edx,4 |
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202 | jmp .loop1 |
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203 | |||
133 | diamond | 204 | .endofimage: ;set to zero memory at end of page |
205 | mov ecx,[app_i_end] |
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206 | and ecx,4096-1 |
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207 | jz .endloop1 |
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208 | lea edi,[ebp+ecx] |
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209 | neg ecx |
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210 | add ecx,4096 |
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211 | xor eax,eax |
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212 | cld |
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213 | rep stosb |
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129 | mikedld | 214 | .endloop1: |
215 | add esp,8+4 ;pop linear address of page table entry and pointer to file name |
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216 | call new_start_application_fl.add_app_parameters |
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217 | mov [esp+28],eax |
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218 | popad |
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219 | ret |
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220 | |||
221 | .cleanfailed_mem1: |
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222 | ;there is mem for directory entry, but there is no mem for pages |
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223 | ;so free directory entry |
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224 | mov eax,[new_process_place] |
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225 | shl eax,8 |
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226 | mov eax,[0x80000+eax+APPDATA.dir_table] |
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227 | call MEM_Free_Page |
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228 | .cleanfailed_mem: |
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229 | ;there is no mem for directory entry, display message. |
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230 | mov esi,start_not_enough_memory |
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231 | call sys_msg_board_str |
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232 | .cleanfailed: ;clean process name |
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233 | push ecx ; save error code |
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234 | ;can't read file, clean process name. |
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235 | ;this avoid problems with panel application. |
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236 | mov edi,[new_process_place] |
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237 | shl edi,8 |
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238 | add edi,0x80000 + APPDATA.app_name |
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239 | mov ecx,11 |
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240 | mov eax,' ' |
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241 | cld |
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242 | rep stosb |
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243 | pop eax |
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244 | .failed: |
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245 | ;no more slots |
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246 | add esp,8+4 |
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247 | mov [application_table_status],0 |
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248 | mov [esp+1Ch], eax |
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249 | popad |
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250 | sti |
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251 | ret |
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252 | |||
253 | ;----------------------------------------------------------------------------- |
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254 | new_start_application_fl: |
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255 | ;input: |
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256 | ; eax - pointer to filename |
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257 | ; ebx - parameters to pass |
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258 | ; edx - flags |
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259 | ;result: |
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260 | ; eax - pid of new process |
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261 | ; or 0 if call fails. |
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262 | mov [appl_path],edi |
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263 | mov [appl_path_size],36 |
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264 | pushad |
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265 | mov esi,new_process_loading |
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266 | call sys_msg_board_str ;write to debug board |
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267 | |||
268 | ;wait application_table_status mutex |
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269 | .table_status: |
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270 | cli |
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271 | cmp [application_table_status],0 |
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272 | jz .stf |
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273 | sti |
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274 | call change_task |
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275 | jmp .table_status |
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276 | .stf: |
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277 | call set_application_table_status |
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278 | ;we can change system tables now |
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279 | push ebx |
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280 | push eax |
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281 | call find_new_process_place ;find empty process slot |
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282 | call safe_sti |
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283 | test eax,eax |
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284 | mov ecx, -0x20 ; too many processes |
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285 | jz .failed |
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286 | |||
287 | mov edi,eax |
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288 | shl edi,8 |
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289 | add edi,0x80000 |
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290 | mov ecx,256/4 |
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291 | xor eax,eax |
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292 | cld |
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293 | rep stosd ;clean extended information about process |
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294 | |||
295 | ;set new process name |
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296 | mov eax,[esp] ;eax - pointer to file name |
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297 | mov ebx,[new_process_place] |
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298 | shl ebx,8 |
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299 | add ebx,0x80000 + APPDATA.app_name |
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300 | mov ecx,11 |
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301 | call memmove |
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302 | |||
303 | ;read header of file |
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304 | mov ebx,1 ;index of first block |
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305 | mov ecx,2 ;number of blocks |
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306 | mov edx,0x90000 ;temp area |
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307 | mov esi,12 ;file name length |
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308 | cli |
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309 | call fileread ;read file from RD |
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310 | call safe_sti |
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311 | mov ecx, eax |
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312 | neg ecx |
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313 | jnz .cleanfailed |
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314 | ;check MENUET signature |
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315 | mov ecx, -0x1F ; not Menuet/Kolibri executable |
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316 | cmp [0x90000],dword 'MENU' |
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317 | jnz .cleanfailed |
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318 | cmp [0x90004],word 'ET' |
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319 | jnz .cleanfailed |
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320 | |||
321 | call get_app_params ;parse header fields |
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133 | diamond | 322 | jc .cleanfailed |
129 | mikedld | 323 | |
324 | mov eax,[new_process_place] |
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325 | inc ecx ; -0x1E = no memory |
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326 | call create_app_cr3_table ;create page directory for new process |
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327 | test eax,eax |
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328 | jz .cleanfailed_mem |
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329 | |||
330 | call MEM_Get_Linear_Address ;calculate linear address of it |
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331 | |||
332 | mov ebx,std_application_base_address |
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333 | mov ecx,[app_mem] |
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334 | add ecx,4095 |
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335 | shr ecx,12 |
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336 | mov edx,eax |
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337 | call mem_alloc_specified_region ;allocate memory for application |
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338 | test eax,eax |
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339 | mov ecx, -0x1E |
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340 | jz .cleanfailed_mem1 |
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341 | |||
342 | mov eax,[edx+(std_application_base_address shr 20)] |
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343 | and eax,not (4096-1) ;eax - physical address of first (for application memory) page table |
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344 | call MEM_Get_Linear_Address |
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345 | mov edx,eax |
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346 | |||
347 | ;read file |
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348 | mov ebx,1 |
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349 | mov esi,12 ;length of file name |
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350 | .loop1: |
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351 | ;edx = linear address of current page table entry |
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352 | ;ebx = index of current block in file |
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353 | push edx |
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354 | mov eax,[edx] |
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355 | and eax,not (4096-1) |
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356 | call MEM_Get_Linear_Address |
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357 | mov edx,eax ;read file block to current page |
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358 | mov eax,[esp+4] ;restore pointer to file name |
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359 | mov ecx,8 ;number of blocks read |
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133 | diamond | 360 | mov ebp,edx ;save buffer address for .endofimage |
129 | mikedld | 361 | push ebx |
362 | cli |
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363 | call fileread |
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364 | ;ebx=file size |
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365 | call safe_sti |
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366 | pop ecx |
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133 | diamond | 367 | add ecx,8 |
368 | test eax,eax |
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369 | jnz .endloop1 ;check io errors |
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370 | mov eax,[app_i_end] |
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371 | add eax,511 |
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372 | shr eax,9 |
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373 | cmp ecx,eax |
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374 | jg .endofimage ;we have loaded whole program |
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375 | add ebx,511 |
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129 | mikedld | 376 | shr ebx,9 |
377 | cmp ecx,ebx |
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378 | jg .endloop1 ;if end of file? |
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379 | mov ebx,ecx |
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380 | pop edx |
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381 | add edx,4 |
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382 | jmp .loop1 |
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383 | |||
133 | diamond | 384 | .endofimage: ;set to zero memory at end of page |
385 | mov ecx,[app_i_end] |
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386 | and ecx,4096-1 |
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387 | jz .endloop1 |
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388 | lea edi,[ebp+ecx] |
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389 | neg ecx |
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390 | add ecx,4096 |
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391 | xor eax,eax |
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392 | cld |
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393 | rep stosb |
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129 | mikedld | 394 | .endloop1: |
395 | add esp,8 ;pop linear address of page table entry and pointer to file name |
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396 | call .add_app_parameters |
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397 | mov [esp+28],eax |
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398 | popad |
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399 | ret |
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400 | |||
401 | .cleanfailed_mem1: |
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402 | ;there is mem for directory entry, but there is no mem for pages |
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403 | ;so free directory entry |
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404 | mov eax,[new_process_place] |
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405 | shl eax,8 |
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406 | mov eax,[0x80000+eax+APPDATA.dir_table] |
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407 | call MEM_Free_Page |
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408 | .cleanfailed_mem: |
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409 | ;there is no mem for directory entry, display message. |
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410 | mov esi,start_not_enough_memory |
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411 | call sys_msg_board_str |
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412 | .cleanfailed: ;clean process name |
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413 | push ecx ; save error code |
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414 | ;can't read file, clean process name. |
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415 | ;this avoid problems with panel application. |
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416 | mov edi,[new_process_place] |
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417 | shl edi,8 |
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418 | add edi,0x80000+APPDATA.app_name |
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419 | mov ecx,11 |
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420 | mov eax,' ' |
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421 | cld |
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422 | rep stosb |
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423 | pop eax |
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424 | .failed: |
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425 | ;no more slots |
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426 | add esp,8 |
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427 | mov [application_table_status],0 |
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428 | mov [esp+1Ch], eax |
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429 | popad |
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430 | call safe_sti |
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431 | ret |
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432 | |||
433 | .add_app_parameters: |
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434 | ;input: |
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435 | ; [esp] - pointer to parameters |
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436 | ; [esp+4]-[esp+36] pushad registers. |
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437 | ;result |
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438 | ; eax - pid of new process |
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439 | ; or zero if failed |
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440 | cli |
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441 | mov ebx,[new_process_place] |
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442 | cmp ebx,[0x3004] |
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443 | jle .noinc |
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444 | inc dword [0x3004] ;update number of processes |
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445 | .noinc: |
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446 | |||
447 | ; mov ebx,[new_process_place] |
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448 | ;set 0x8c field of extended information about process |
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449 | ;(size of application memory) |
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450 | shl ebx,8 |
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451 | mov eax,[app_mem] |
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452 | mov [second_base_address+0x80000+APPDATA.mem_size+ebx],eax |
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453 | ;set 0x10 field of information about process |
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454 | ;(application base address) |
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455 | ; mov ebx,[new_process_place] |
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456 | ; shl ebx,5 |
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457 | shr ebx,3 |
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458 | mov dword [second_base_address+0x3000+ebx+TASKDATA.mem_start],std_application_base_address |
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459 | |||
460 | ;add command line parameters |
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461 | .add_command_line: |
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462 | mov edx,[app_i_param] |
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463 | test edx,edx |
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464 | jz .no_command_line ;application don't need parameters |
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465 | mov eax,[esp+4] |
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466 | test eax,eax |
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467 | jz .no_command_line ;no parameters specified |
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468 | ;calculate parameter length |
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469 | mov esi,eax |
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470 | xor ecx,ecx |
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139 | diamond | 471 | inc ecx ; include terminating null |
129 | mikedld | 472 | .command_line_len: |
473 | cmp byte [esi],0 |
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474 | jz .command_line_len_end |
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475 | inc esi |
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476 | inc ecx |
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477 | cmp ecx,256 |
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478 | jl .command_line_len |
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479 | |||
480 | .command_line_len_end: |
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481 | ;ecx - parameter length |
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482 | ;edx - address of parameters in new process address space |
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483 | mov ebx,eax ;ebx - address of parameters in our address space |
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484 | mov eax,[new_process_place] |
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485 | call write_process_memory ;copy parameters to new process address space |
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486 | |||
487 | .no_command_line: |
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488 | ;****************************************************************** |
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489 | mov edx,[app_i_icon] |
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490 | test edx,edx |
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491 | jz .no_command_line_1 ;application don't need path of file |
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492 | mov ebx,[appl_path] |
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493 | mov ecx,[appl_path_size] |
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494 | mov eax,[new_process_place] |
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495 | call write_process_memory ;copy path of file to new process address space |
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496 | .no_command_line_1: |
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497 | ;****************************************************************** |
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498 | mov ebx,[new_process_place] |
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499 | mov eax,ebx |
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500 | shl ebx,5 |
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501 | add ebx,0x3000 ;ebx - pointer to information about process |
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502 | mov [ebx+TASKDATA.wnd_number],al ;set window number on screen = process slot |
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503 | |||
504 | mov [ebx+TASKDATA.event_mask],dword 1+2+4 ;set default event flags (see 40 function) |
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505 | |||
506 | inc dword [process_number] |
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507 | mov eax,[process_number] |
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508 | mov [ebx+TASKDATA.pid],eax ;set PID |
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509 | |||
510 | mov ecx,ebx |
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511 | add ecx,draw_data-0x3000 ;ecx - pointer to draw data |
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512 | ;set draw data to full screen |
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513 | mov [ecx+RECT.left],dword 0 |
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514 | mov [ecx+RECT.top],dword 0 |
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515 | mov eax,[0xfe00] |
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516 | mov [ecx+RECT.right],eax |
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517 | mov eax,[0xfe04] |
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518 | mov [ecx+RECT.bottom],eax |
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519 | ;set window state to 'normal' (non-minimized/maximized/rolled-up) state |
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520 | mov [ecx+WDATA.fl_wstate],WSTATE_NORMAL |
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521 | ;set cr3 register in TSS of application |
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522 | mov ecx,[new_process_place] |
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523 | shl ecx,8 |
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524 | mov eax,[0x80000+APPDATA.dir_table+ecx] |
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525 | add eax,8+16 ;add flags |
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526 | mov [l.cr3],eax |
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527 | |||
528 | mov eax,[app_start] |
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529 | mov [l.eip],eax ;set eip in TSS |
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530 | mov eax,[app_esp] |
||
531 | mov [l.esp],eax ;set stack in TSS |
||
532 | |||
533 | ;gdt |
||
534 | ;mov ebx,[new_process_place] |
||
535 | ;shl ebx,3 |
||
536 | mov ax,app_code ;ax - selector of code segment |
||
537 | ;add ax,bx |
||
538 | mov [l.cs],ax |
||
539 | mov ax,app_data |
||
540 | ;add ax,bx ;ax - selector of data segment |
||
541 | mov [l.ss],ax |
||
542 | mov [l.ds],ax |
||
543 | mov [l.es],ax |
||
544 | mov [l.fs],ax |
||
545 | mov ax,graph_data ;ax - selector of graphic segment |
||
546 | mov [l.gs],ax |
||
547 | mov [l.io],word 128 |
||
548 | mov [l.eflags],dword 0x11202 |
||
549 | mov [l.ss0],os_data |
||
550 | mov ebx,[new_process_place] |
||
551 | shl ebx,12 |
||
552 | add ebx,sysint_stack_data+4096 |
||
553 | mov [l.esp0],ebx |
||
554 | |||
555 | ;copy tss to it place |
||
556 | mov eax,tss_sceleton |
||
557 | mov ebx,[new_process_place] |
||
558 | imul ebx,tss_step |
||
559 | add ebx,tss_data ;ebx - address of application TSS |
||
560 | mov ecx,120 |
||
561 | call memmove |
||
562 | |||
563 | ;Add IO access table - bit array of permitted ports |
||
564 | or eax,-1 |
||
565 | mov edi,[new_process_place] |
||
566 | imul edi,tss_step |
||
567 | add edi,tss_data+128 |
||
568 | mov ecx,2048 |
||
569 | cld |
||
570 | rep stosd ;full access to 2048*8=16384 ports |
||
571 | |||
572 | mov ecx,ebx ;ecx - address of application TSS |
||
573 | mov edi,[new_process_place] |
||
574 | shl edi,3 |
||
575 | ;set TSS descriptor |
||
576 | mov [edi+gdts+tss0+0],word tss_step ;limit (size) |
||
577 | mov [edi+gdts+tss0+2],cx ;part of offset |
||
578 | mov eax,ecx |
||
579 | shr eax,16 |
||
580 | mov [edi+gdts+tss0+4],al ;part of offset |
||
581 | mov [edi+gdts+tss0+7],ah ;part of offset |
||
582 | mov [edi+gdts+tss0+5],word 01010000b*256+11101001b ;system flags |
||
583 | |||
584 | |||
585 | ;flush keyboard and buttons queue |
||
586 | mov [0xf400],byte 0 |
||
587 | mov [0xf500],byte 0 |
||
588 | |||
589 | mov edi,[new_process_place] |
||
590 | shl edi,5 |
||
591 | add edi,window_data |
||
592 | mov ebx,[new_process_place] |
||
593 | movzx esi,word [0xC000+ebx*2] |
||
594 | lea esi,[0xC400+esi*2] |
||
595 | call windowactivate ;gui initialization |
||
596 | |||
597 | mov ebx,[new_process_place] |
||
598 | shl ebx,5 |
||
599 | ; set if debuggee |
||
600 | test byte [esp+28], 1 |
||
601 | jz .no_debug |
||
602 | mov [0x3000+ebx+TASKDATA.state], 1 ; set process state - suspended |
||
603 | mov eax, [0x3000] |
||
604 | mov [0x80000+ebx*8+APPDATA.debugger_slot], eax ;set debugger PID - current |
||
605 | jmp .debug |
||
606 | .no_debug: |
||
607 | mov [0x3000+ebx+TASKDATA.state], 0 ; set process state - running |
||
608 | .debug: |
||
609 | |||
610 | mov esi,new_process_running |
||
611 | call sys_msg_board_str ;output information about succefull startup |
||
612 | |||
613 | ; add esp,4 ;pop pointer to parameters |
||
614 | ; popad |
||
615 | mov eax,[process_number] ;set result |
||
616 | mov [application_table_status],0 ;unlock application_table_status mutex |
||
617 | call safe_sti |
||
618 | ret 4 |
||
619 | ;----------------------------------------------------------------------------- |
||
620 | new_sys_threads: |
||
621 | ;eax=1 - create thread |
||
622 | ; ebx=thread start |
||
623 | ; ecx=thread stack value |
||
624 | ;result: |
||
625 | ; eax=pid |
||
626 | xor edx,edx ; flags=0 |
||
627 | pushad |
||
628 | |||
629 | cmp eax,1 |
||
630 | jnz .ret ;other subfunctions |
||
631 | mov esi,new_process_loading |
||
632 | call sys_msg_board_str |
||
633 | ;lock application_table_status mutex |
||
634 | .table_status: |
||
635 | cli |
||
636 | cmp [application_table_status],0 |
||
637 | je .stf |
||
638 | sti |
||
639 | call change_task |
||
640 | jmp .table_status |
||
641 | .stf: |
||
642 | call set_application_table_status |
||
643 | ;find free process slot |
||
644 | |||
645 | call find_new_process_place |
||
646 | test eax,eax |
||
647 | jz .failed |
||
648 | |||
649 | ;set parameters for thread |
||
650 | xor eax,eax |
||
651 | mov [app_i_param],eax |
||
652 | mov [app_i_icon],eax |
||
653 | mov [app_start],ebx |
||
654 | mov [app_esp],ecx |
||
655 | |||
656 | mov esi,[0x3000] |
||
657 | shl esi,8 |
||
658 | add esi,0x80000+APPDATA.app_name |
||
659 | mov ebx,esi ;ebx=esi - pointer to extended information about current thread |
||
660 | |||
661 | mov edi,[new_process_place] |
||
662 | shl edi,8 |
||
663 | add edi,0x80000 |
||
664 | lea edx, [edi+APPDATA.app_name] ;edx=edi - pointer to extended infomation about new thread |
||
665 | mov ecx,256/4 |
||
666 | rep stosd ;clean extended information about new thread |
||
667 | mov edi,edx |
||
668 | mov ecx,11 |
||
669 | rep movsb ;copy process name |
||
670 | mov eax,[ebx+APPDATA.mem_size] |
||
671 | mov [app_mem],eax ;set memory size |
||
672 | mov eax,[ebx+APPDATA.dir_table] |
||
673 | mov dword [edx-APPDATA.app_name+APPDATA.dir_table],eax ;copy page directory |
||
674 | ; mov eax,[new_process_place] |
||
675 | ; mov ebx,[0x3000] |
||
676 | ; call addreference_app_cr3_table |
||
677 | |||
678 | push 0 ;no parameters |
||
679 | call new_start_application_fl.add_app_parameters ;start thread |
||
680 | mov [esp+28],eax |
||
681 | popad |
||
682 | ret |
||
683 | |||
684 | .failed: |
||
685 | sti |
||
686 | popad |
||
687 | mov eax,-1 |
||
688 | ret |
||
689 | .ret: |
||
690 | popad |
||
691 | ret |
||
692 | ;----------------------------------------------------------------------------- |
||
693 | new_mem_resize: |
||
694 | ;input: |
||
695 | ; ebx - new size |
||
696 | ;result: |
||
697 | ; [esp+36]:=0 - normal |
||
698 | ; [esp+36]:=1 - error |
||
699 | ;This function set new application memory size. |
||
700 | mov esi,ebx ;save new size |
||
701 | add ebx,4095 |
||
702 | and ebx,not (4096-1) ;round up size |
||
703 | mov ecx,[0x3000] |
||
704 | shl ecx,8 |
||
705 | mov edx,[0x80000 + APPDATA.mem_size +ecx] |
||
706 | add edx,4095 |
||
707 | and edx,not (4096-1) ;old size |
||
708 | mov eax,[0x80000 + APPDATA.dir_table+ecx] |
||
709 | call MEM_Get_Linear_Address |
||
710 | ;eax - linear address of page directory |
||
711 | call MEM_Heap_Lock ;guarantee that two threads willn't |
||
712 | ;change memory size simultaneously |
||
713 | cmp ebx,edx |
||
714 | ; mov esi,ebx ;save new size |
||
715 | jg .expand |
||
716 | |||
717 | .free: |
||
718 | sub edx,ebx |
||
719 | jz .unlock ;do nothing |
||
720 | mov ecx,edx |
||
721 | shr ecx,12 |
||
722 | add ebx,std_application_base_address |
||
723 | call mem_free_specified_region ;free unnecessary pages |
||
724 | jmp .unlock |
||
725 | |||
726 | .expand: |
||
727 | sub ebx,edx |
||
728 | mov ecx,ebx |
||
729 | shr ecx,12 |
||
730 | mov ebx,edx |
||
731 | add ebx,std_application_base_address |
||
732 | call mem_alloc_specified_region ;alloc necessary pages |
||
733 | test eax,eax |
||
734 | jz .failed ;not enough memory |
||
735 | |||
736 | .unlock: |
||
737 | mov ebx,esi |
||
738 | mov eax,[0x3000] |
||
739 | shl eax,8 |
||
740 | mov [eax+0x80000 + APPDATA.mem_size],ebx ;write new memory size |
||
741 | ;search threads and update |
||
742 | ;application memory size infomation |
||
743 | mov ecx,[eax+0x80000 + APPDATA.dir_table] |
||
744 | mov eax,2 |
||
745 | |||
746 | .search_threads: |
||
747 | ;eax = current slot |
||
748 | ;ebx = new memory size |
||
749 | ;ecx = page directory |
||
750 | cmp eax,[0x3004] |
||
751 | jg .search_threads_end |
||
752 | mov edx,eax |
||
753 | shl edx,5 |
||
754 | cmp word [0x3000+edx+TASKDATA.state],9 ;if slot empty? |
||
755 | jz .search_threads_next |
||
756 | shl edx,3 |
||
757 | cmp [edx+0x80000+APPDATA.dir_table],ecx ;if it is our thread? |
||
758 | jnz .search_threads_next |
||
759 | mov [edx+0x80000+APPDATA.mem_size],ebx ;update memory size |
||
760 | .search_threads_next: |
||
761 | inc eax |
||
762 | jmp .search_threads |
||
763 | .search_threads_end: |
||
764 | |||
765 | call MEM_Heap_UnLock |
||
766 | mov dword [esp+36],0 |
||
767 | ret |
||
768 | |||
769 | .failed: |
||
770 | call MEM_Heap_UnLock |
||
771 | mov dword [esp+36],1 |
||
772 | ret |
||
773 | ;----------------------------------------------------------------------------- |
||
774 | pid_to_slot: |
||
775 | ;Input: |
||
776 | ; eax - pid of process |
||
777 | ;Output: |
||
778 | ; eax - slot of process or 0 if process don't exists |
||
779 | ;Search process by PID. |
||
780 | push ebx |
||
781 | push ecx |
||
782 | mov ebx,[0x3004] |
||
783 | shl ebx,5 |
||
784 | mov ecx,2*32 |
||
785 | |||
786 | .loop: |
||
787 | ;ecx=offset of current process info entry |
||
788 | ;ebx=maximum permitted offset |
||
789 | cmp byte [second_base_address+0x3000+ecx+TASKDATA.state],9 |
||
790 | jz .endloop ;skip empty slots |
||
791 | cmp [second_base_address+0x3000+ecx+TASKDATA.pid],eax ;check PID |
||
792 | jz .pid_found |
||
793 | .endloop: |
||
794 | add ecx,32 |
||
795 | cmp ecx,ebx |
||
796 | jle .loop |
||
797 | |||
798 | pop ecx |
||
799 | pop ebx |
||
800 | xor eax,eax |
||
801 | ret |
||
802 | |||
803 | .pid_found: |
||
804 | shr ecx,5 |
||
805 | mov eax,ecx ;convert offset to index of slot |
||
806 | pop ecx |
||
807 | pop ebx |
||
808 | ret |
||
809 | ;----------------------------------------------------------------------------- |
||
810 | is_new_process: |
||
811 | ;Input: |
||
812 | ; eax - process slot |
||
813 | ;Output: |
||
814 | ; eax=1 - it is new process |
||
815 | ; eax=0 - it is old process |
||
816 | ; shl eax,5 |
||
817 | ; mov eax,[second_base_address+0x3000+eax+0x10] |
||
818 | ; cmp eax,std_application_base_address ;check base address of application |
||
819 | ; jz .new_process |
||
820 | ; xor eax,eax |
||
821 | ; ret |
||
822 | |||
823 | ;.new_process: |
||
824 | mov eax,1 |
||
825 | ret |
||
826 | ;----------------------------------------------------------------------------- |
||
827 | write_process_memory: |
||
828 | ;Input: |
||
829 | ; eax - process slot |
||
830 | ; ebx - buffer address |
||
831 | ; ecx - buffer size |
||
832 | ; edx - start address in other process |
||
833 | ;Output: |
||
834 | ; eax - number of bytes written |
||
835 | pushad |
||
836 | shl eax,8 |
||
837 | mov eax,[0x80000+eax+APPDATA.dir_table] |
||
838 | call MEM_Get_Linear_Address |
||
839 | mov ebp,eax |
||
840 | ;ebp=linear address of page directory of other process. |
||
841 | add edx,std_application_base_address ;convert to linear address |
||
842 | test ecx,ecx |
||
843 | jle .ret |
||
844 | |||
845 | .write_loop: |
||
846 | ;ebx = current buffer address |
||
847 | ;ecx>0 = current size |
||
848 | ;edx = current address in other process |
||
849 | ;ebp = linear address of page directory |
||
850 | |||
851 | call MEM_Heap_Lock ;cli |
||
852 | mov esi,edx |
||
853 | shr esi,22 |
||
854 | mov eax,[ebp+4*esi] ;find page directory entry |
||
855 | and eax,not (4096-1) ;clear flags |
||
856 | test eax,eax |
||
857 | jz .page_not_found |
||
858 | call MEM_Get_Linear_Address ;calculate linear address of page table |
||
859 | test eax,eax |
||
860 | jz .page_not_found |
||
861 | mov esi,edx |
||
862 | shr esi,12 |
||
863 | and esi,1023 |
||
864 | mov eax,[eax+4*esi] ;find page table entry |
||
865 | and eax,not (4096-1) |
||
866 | test eax,eax |
||
867 | jz .page_not_found |
||
868 | call MEM_Get_Linear_Address ;calculate linear address of page |
||
869 | test eax,eax |
||
870 | jz .page_not_found |
||
871 | mov edi,eax |
||
872 | call MEM_Add_Reference_Linear;guarantee that page willn't disappear |
||
873 | call MEM_Heap_UnLock ;sti |
||
874 | |||
875 | mov esi,edx |
||
876 | and esi,4095 |
||
877 | add edi,esi ;add offset in page |
||
878 | ;edi = linear address corresponding edx in other process |
||
879 | sub esi,4096 |
||
880 | neg esi ;esi - number of remaining bytes in page |
||
881 | cmp esi,ecx |
||
882 | jl .min_ecx |
||
883 | mov esi,ecx |
||
884 | .min_ecx: ;esi=min(ecx,esi) - number of bytes to write |
||
885 | sub ecx,esi |
||
886 | push ecx |
||
887 | mov ecx,esi ;ecx - number of bytes to write |
||
888 | mov esi,ebx ;esi - source, edi - destination |
||
889 | add edx,ecx ;move pointer in address space of other process |
||
890 | push edi |
||
891 | |||
892 | ;move ecx bytes |
||
893 | test ecx,3 |
||
894 | jnz .not_aligned |
||
895 | shr ecx,2 |
||
896 | rep movsd |
||
897 | jmp .next_iter |
||
898 | .not_aligned: |
||
899 | rep movsb |
||
900 | .next_iter: |
||
901 | |||
902 | pop eax |
||
903 | and eax,not (4096-1) ;eax - linear address of current page |
||
904 | call MEM_Free_Page_Linear ;free reference |
||
905 | mov ebx,esi ;new pointer to buffer - movsb automaticaly advance it. |
||
906 | pop ecx ;restore number of remaining bytes |
||
907 | test ecx,ecx |
||
908 | jnz .write_loop |
||
909 | .ret: |
||
910 | popad |
||
911 | mov eax,ecx |
||
912 | ret |
||
913 | |||
914 | .page_not_found: |
||
915 | call MEM_Heap_UnLock ;error has appeared in critical region |
||
916 | sub ecx,[esp+24] ;[esp+24]<-->ecx |
||
917 | neg ecx ;ecx=number_of_written_bytes |
||
918 | mov [esp+28],ecx ;[esp+28]<-->eax |
||
919 | popad |
||
920 | ret |
||
921 | ;----------------------------------------------------------------------------- |
||
922 | syscall_test: |
||
923 | ;for testing memory manager from applications. |
||
924 | mov edx,ecx |
||
925 | mov ecx,ebx |
||
926 | call trans_address |
||
927 | mov ebx,eax |
||
928 | mov eax,[0x3000] |
||
929 | call read_process_memory |
||
930 | ret |
||
931 | ;----------------------------------------------------------------------------- |
||
932 | read_process_memory: |
||
933 | ;Input: |
||
934 | ; eax - process slot |
||
935 | ; ebx - buffer address |
||
936 | ; ecx - buffer size |
||
937 | ; edx - start address in other process |
||
938 | ;Output: |
||
939 | ; eax - number of bytes read. |
||
940 | pushad |
||
941 | shl eax,8 |
||
942 | mov eax,[0x80000+eax+APPDATA.dir_table] |
||
943 | call MEM_Get_Linear_Address |
||
944 | mov ebp,eax |
||
945 | add edx,std_application_base_address |
||
946 | .read_loop: |
||
947 | ;ebx = current buffer address |
||
948 | ;ecx>0 = current size |
||
949 | ;edx = current address in other process |
||
950 | ;ebp = linear address of page directory |
||
951 | |||
952 | call MEM_Heap_Lock ;cli |
||
953 | mov esi,edx |
||
954 | shr esi,22 |
||
955 | mov eax,[ebp+4*esi] ;find page directory entry |
||
956 | and eax,not (4096-1) |
||
957 | test eax,eax |
||
958 | jz .page_not_found |
||
959 | call MEM_Get_Linear_Address |
||
960 | test eax,eax |
||
961 | jz .page_not_found |
||
962 | mov esi,edx |
||
963 | shr esi,12 |
||
964 | and esi,1023 |
||
965 | mov eax,[eax+4*esi] ;find page table entry |
||
966 | and eax,not (4096-1) |
||
967 | test eax,eax |
||
968 | jz .page_not_found |
||
969 | call MEM_Get_Linear_Address ;calculate linear address of page |
||
970 | test eax,eax |
||
971 | jz .page_not_found |
||
972 | mov esi,eax |
||
973 | call MEM_Add_Reference_Linear;guarantee that page willn't disappear |
||
974 | call MEM_Heap_UnLock ;sti |
||
975 | |||
976 | mov edi,edx |
||
977 | and edi,4095 |
||
978 | add esi,edi ;add offset in page |
||
979 | ;esi = linear address corresponding edx in other process |
||
980 | sub edi,4096 |
||
981 | neg edi |
||
982 | |||
983 | ;edi=min(edi,ecx) - number of bytes to copy |
||
984 | cmp edi,ecx |
||
985 | jl .min_ecx |
||
986 | mov edi,ecx |
||
987 | .min_ecx: |
||
988 | |||
989 | sub ecx,edi ;update size of remaining bytes |
||
990 | add edx,edi ;update current pointer in other address space. |
||
991 | push ecx |
||
992 | mov ecx,edi ;ecx - number of bytes to read |
||
993 | mov edi,ebx ;esi - source, edi - destination |
||
994 | push esi |
||
995 | ;move ecx bytes |
||
996 | test ecx,3 |
||
997 | jnz .not_aligned |
||
998 | shr ecx,2 |
||
999 | rep movsd |
||
1000 | jmp .next_iter |
||
1001 | .not_aligned: |
||
1002 | rep movsb |
||
1003 | .next_iter: |
||
1004 | pop eax |
||
1005 | and eax,not (4096-1) ;eax - linear address of current page |
||
1006 | call MEM_Free_Page_Linear ;free reference |
||
1007 | mov ebx,edi ;new pointer to buffer - movsb automaticaly advance it. |
||
1008 | pop ecx ;restore number of remaining bytes |
||
1009 | test ecx,ecx |
||
1010 | jnz .read_loop |
||
1011 | |||
1012 | popad |
||
1013 | mov eax,ecx |
||
1014 | ret |
||
1015 | |||
1016 | .page_not_found: |
||
1017 | call MEM_Heap_UnLock ;error has appeared in critical region |
||
1018 | sub ecx,[esp+24] ;[esp+24]<-->ecx |
||
1019 | neg ecx ;ecx=number_of_read_bytes |
||
1020 | mov [esp+28],ecx ;[esp+28]<-->eax |
||
1021 | popad |
||
1022 | ret |
||
1023 | ;----------------------------------------------------------------------------- |
||
1024 | check_region: |
||
1025 | ;input: |
||
1026 | ; ebx - start of buffer |
||
1027 | ; ecx - size of buffer |
||
1028 | ;result: |
||
1029 | ; eax = 1 region lays in app memory |
||
1030 | ; eax = 0 region don't lays in app memory |
||
1031 | mov eax,[0x3000] |
||
1032 | jmp check_process_region |
||
1033 | ;----------------------------------------------------------------------------- |
||
1034 | check_process_region: |
||
1035 | ;input: |
||
1036 | ; eax - slot |
||
1037 | ; ebx - start of buffer |
||
1038 | ; ecx - size of buffer |
||
1039 | ;result: |
||
1040 | ; eax = 1 region lays in app memory |
||
1041 | ; eax = 0 region don't lays in app memory |
||
1042 | test ecx,ecx |
||
1043 | jle .ok |
||
1044 | shl eax,5 |
||
1045 | cmp word [0x3000+eax+TASKDATA.state],0 |
||
1046 | jnz .failed |
||
1047 | shl eax,3 |
||
1048 | mov eax,[0x80000+eax+APPDATA.dir_table] |
||
1049 | test eax,eax |
||
1050 | jz .failed |
||
1051 | call MEM_Get_Linear_Address |
||
1052 | push ebx |
||
1053 | push ecx |
||
1054 | push edx |
||
1055 | mov edx,ebx |
||
1056 | and edx,not (4096-1) |
||
1057 | sub ebx,edx |
||
1058 | add ecx,ebx |
||
1059 | mov ebx,edx |
||
1060 | add ecx,(4096-1) |
||
1061 | and ecx,not (4096-1) |
||
1062 | .loop: |
||
1063 | ;eax - linear address of page directory |
||
1064 | ;ebx - current page |
||
1065 | ;ecx - current size |
||
1066 | mov edx,ebx |
||
1067 | shr edx,22 |
||
1068 | mov edx,[eax+4*edx] |
||
1069 | and edx,not (4096-1) |
||
1070 | test edx,edx |
||
1071 | jz .failed1 |
||
1072 | push eax |
||
1073 | mov eax,edx |
||
1074 | call MEM_Get_Linear_Address |
||
1075 | mov edx,ebx |
||
1076 | shr edx,12 |
||
1077 | and edx,(1024-1) |
||
1078 | mov eax,[eax+4*edx] |
||
1079 | and eax,not (4096-1) |
||
1080 | test eax,eax |
||
1081 | pop eax |
||
1082 | jz .failed1 |
||
1083 | add ebx,4096 |
||
1084 | sub ecx,4096 |
||
1085 | jg .loop |
||
1086 | pop edx |
||
1087 | pop ecx |
||
1088 | pop ebx |
||
1089 | .ok: |
||
1090 | mov eax,1 |
||
1091 | ret |
||
1092 | |||
1093 | .failed1: |
||
1094 | pop edx |
||
1095 | pop ecx |
||
1096 | pop ebx |
||
1097 | .failed: |
||
1098 | xor eax,eax |
||
1099 | ret |
||
1100 | ;----------------------------------------------------------------------------- |
||
1101 | new_sys_ipc: |
||
1102 | ;input: |
||
1103 | ; eax=1 - set ipc buffer area |
||
1104 | ; ebx=address of buffer |
||
1105 | ; ecx=size of buffer |
||
1106 | ; eax=2 - send message |
||
1107 | ; ebx=PID |
||
1108 | ; ecx=address of message |
||
1109 | ; edx=size of message |
||
1110 | cmp eax,1 |
||
1111 | jnz .no_ipc_def |
||
1112 | ;set ipc buffer area |
||
1113 | mov edi,[0x3000] |
||
1114 | shl edi,8 |
||
1115 | add edi,0x80000 |
||
1116 | cli |
||
1117 | mov [edi+APPDATA.ipc_start],ebx ;set fields in extended information area |
||
1118 | mov [edi+APPDATA.ipc_size],ecx |
||
1119 | sti |
||
1120 | mov [esp+36],dword 0 ;success |
||
1121 | ret |
||
1122 | |||
1123 | .no_ipc_def: |
||
1124 | cmp eax,2 |
||
1125 | jnz .no_ipc_send |
||
1126 | ;send message |
||
1127 | cli |
||
1128 | ;obtain slot from PID |
||
1129 | mov eax,ebx |
||
1130 | call pid_to_slot |
||
1131 | test eax,eax |
||
1132 | jz .no_pid |
||
1133 | mov ebp,eax |
||
1134 | ;ebp = slot of other process |
||
1135 | shl eax,8 |
||
1136 | mov edi,[eax+0x80000+APPDATA.ipc_start] ;is ipc area defined? |
||
1137 | test edi,edi |
||
1138 | jz .no_ipc_area |
||
1139 | mov esi,[eax+0x80000+APPDATA.ipc_size] ;esi - size of buffer |
||
1140 | push dword -1 ;temp variable for read_process_memory |
||
1141 | mov ebx,esp |
||
1142 | push ecx |
||
1143 | push edx |
||
1144 | mov ecx,4 ;read 4 bytes |
||
1145 | mov eax,ebp |
||
1146 | mov edx,edi ;from beginning of buffer. |
||
1147 | call read_process_memory |
||
1148 | mov eax,[esp+8] |
||
1149 | test eax,eax |
||
1150 | jnz .ipc_blocked ;if dword [buffer]<>0 - ipc blocked now |
||
1151 | add edx,4 ;move to next 4 bytes |
||
1152 | mov eax,ebp |
||
1153 | call read_process_memory ;read size of occupied space in buffer |
||
1154 | sub esi,8 |
||
1155 | sub esi,[esp] |
||
1156 | sub esi,[esp+8] ;esi=(buffer size)-(occupied size)-(message size)-(header of message size) |
||
1157 | js .buffer_overflow ;esi<0 - not enough memory in buffer |
||
1158 | mov esi,[esp+8] ;previous offset |
||
1159 | add dword [esp+8],8 |
||
1160 | mov edi,[esp] |
||
1161 | add [esp+8],edi ;add (size of message)+(size of header of message) to [buffer+4] |
||
1162 | mov eax,ebp |
||
1163 | call write_process_memory |
||
1164 | add edx,esi |
||
1165 | sub edx,4 ;move to beginning of place for our message |
||
1166 | mov eax,[second_base_address+0x3010] |
||
1167 | mov eax,[eax+TASKDATA.pid] ;eax - our PID |
||
1168 | mov [esp+8],eax |
||
1169 | mov eax,ebp |
||
1170 | call write_process_memory ;write PID |
||
1171 | mov ebx,esp ;address of size of message |
||
1172 | mov eax,ebp |
||
1173 | add edx,4 |
||
1174 | call write_process_memory ;write size of message |
||
1175 | add edx,4 |
||
1176 | pop ecx ;ecx - size of message |
||
1177 | pop eax |
||
1178 | call trans_address |
||
1179 | mov ebx,eax ;ebx - linear address of message |
||
1180 | add esp,4 ;pop temporary variable |
||
1181 | mov eax,ebp |
||
1182 | call write_process_memory ;write message |
||
1183 | sti |
||
1184 | ;awake other process |
||
1185 | shl ebp,8 |
||
1186 | mov eax,ebp |
||
1187 | or [eax+0x80000+APPDATA.event_mask],dword 0x40 |
||
1188 | |||
1189 | cmp dword [check_idle_semaphore],20 |
||
1190 | jge .ipc_no_cis |
||
1191 | mov dword [check_idle_semaphore],5 |
||
1192 | .ipc_no_cis: |
||
1193 | mov dword [esp+36],0 |
||
1194 | ret |
||
1195 | .no_ipc_send: |
||
1196 | mov dword [esp+36],-1 |
||
1197 | ret |
||
1198 | .no_pid: |
||
1199 | sti |
||
1200 | mov dword [esp+36],4 |
||
1201 | ret |
||
1202 | .no_ipc_area: |
||
1203 | sti |
||
1204 | mov dword [esp+36],1 |
||
1205 | ret |
||
1206 | .ipc_blocked: |
||
1207 | sti |
||
1208 | add esp,12 |
||
1209 | mov dword [esp+36],2 |
||
1210 | ret |
||
1211 | .buffer_overflow: |
||
1212 | sti |
||
1213 | add esp,12 |
||
1214 | mov dword [esp+36],3 |
||
1215 | ret |
||
1216 | ;----------------------------------------------------------------------------- |
||
1217 | trans_address: |
||
1218 | ;Input |
||
1219 | ; eax - application address |
||
1220 | ;Output |
||
1221 | ; eax - linear address for kernel |
||
1222 | add eax,std_application_base_address |
||
1223 | ret |
||
1224 | ;----------------------------------------------------------------------------- |
||
1225 | new_start_application_hd: |
||
1226 | ;eax - file name (kernel address) |
||
1227 | ;ebx - file name length |
||
1228 | ;ecx - work area (kernel address) |
||
1229 | ;edx - flags |
||
1230 | ;ebp - parameters |
||
1231 | mov [appl_path],edi |
||
1232 | pushad |
||
1233 | |||
1234 | mov esi,new_process_loading |
||
1235 | call sys_msg_board_str ;write message to message board |
||
1236 | |||
1237 | ;lock application_table_status mutex |
||
1238 | .table_status: |
||
1239 | cli |
||
1240 | cmp [application_table_status],0 |
||
1241 | jz .stf |
||
1242 | sti |
||
1243 | call change_task |
||
1244 | jmp .table_status |
||
1245 | .stf: |
||
1246 | call set_application_table_status |
||
1247 | |||
1248 | push ebp |
||
1249 | push ebx |
||
1250 | push eax |
||
1251 | push ecx |
||
1252 | call find_new_process_place ;find new process slot |
||
1253 | sti |
||
1254 | test eax,eax |
||
1255 | mov ecx, -0x20 ; too many processes |
||
1256 | jz .failed |
||
1257 | |||
1258 | ;write application name |
||
1259 | xor eax,eax |
||
1260 | mov [appl_path_size],eax |
||
1261 | mov eax,[esp+4] |
||
1262 | .find_last_byte: |
||
1263 | cmp byte [eax],0 |
||
1264 | jz .find_last_byte_end |
||
1265 | inc eax |
||
1266 | inc [appl_path_size] |
||
1267 | jmp .find_last_byte |
||
1268 | .find_last_byte_end: |
||
1269 | add [appl_path_size],24 |
||
1270 | lea esi,[eax-11] ;last 11 bytes = application name |
||
1271 | mov edi,[new_process_place] |
||
1272 | shl edi,8 |
||
1273 | add edi,0x80000+APPDATA.app_name |
||
1274 | mov ecx,11 |
||
1275 | cld |
||
1276 | rep movsb ;copy name to extended information about process |
||
1277 | |||
1278 | ;read header |
||
1279 | mov eax,[esp+4] ;file name |
||
1280 | mov esi,[esp] ;work area |
||
1281 | mov ecx,1 ;read from first block |
||
1282 | mov edx,1 ;read 1 block |
||
1283 | call read_hd_file |
||
1284 | mov ecx, eax |
||
1285 | neg ecx |
||
1286 | jnz .cleanfailed |
||
1287 | |||
1288 | pop esi |
||
1289 | push esi |
||
1290 | ;check menuet signature |
||
1291 | mov ecx, -0x1F ; not Menuet/Kolibri executable |
||
1292 | cmp [esi+1024+0],dword 'MENU' ;read_hd_file function write file to +1024 offset |
||
1293 | jnz .cleanfailed |
||
1294 | cmp [esi+1024+4],word 'ET' |
||
1295 | jnz .cleanfailed |
||
1296 | add esi,1024 |
||
1297 | mov edi,0x90000 |
||
1298 | mov ecx,512/4 |
||
1299 | cld |
||
1300 | rep movsd ;copy first block to 0x90000 address for get_app_params function |
||
1301 | call get_app_params |
||
1302 | mov ecx, -0x1F ; not Menuet/Kolibri executable |
||
133 | diamond | 1303 | jc .cleanfailed |
129 | mikedld | 1304 | |
1305 | mov eax,[new_process_place] |
||
1306 | inc ecx ; -0x1E = no memory |
||
1307 | call create_app_cr3_table ;create page directory |
||
1308 | test eax,eax |
||
1309 | jz .cleanfailed_mem |
||
1310 | |||
1311 | call MEM_Get_Linear_Address |
||
1312 | |||
1313 | mov ebx,std_application_base_address |
||
1314 | mov ecx,[app_mem] |
||
1315 | add ecx,4096-1 |
||
1316 | shr ecx,12 |
||
1317 | mov edx,eax ;edx - linear address of page directory |
||
1318 | call mem_alloc_specified_region ;allocate memory for application |
||
1319 | mov ecx, -0x1E ; no memory |
||
1320 | test eax,eax |
||
1321 | jz .cleanfailed_mem1 |
||
1322 | |||
1323 | add edx,(std_application_base_address shr 20) |
||
1324 | mov eax,[edx] |
||
1325 | and eax,not (4096-1) |
||
1326 | call MEM_Get_Linear_Address |
||
1327 | push edx ;save pointer to first page table |
||
1328 | mov edx,eax |
||
1329 | ;read file |
||
1330 | mov ecx,1 |
||
1331 | xor ebp,ebp |
||
1332 | .loop1: |
||
1333 | ;[esp] - pointer to current page directory entry |
||
1334 | ;edx - pointer to current page table |
||
1335 | ;ebp - offset in page |
||
1336 | ;ecx - current cluster |
||
1337 | push edx |
||
1338 | mov eax,[esp+12] ;file name |
||
1339 | mov ebx,[esp+16] ;file name length |
||
1340 | mov esi,[esp+8] ;work area |
||
1341 | mov edx,1 ;number of blocks to read |
||
1342 | push ecx |
||
1343 | push ebp |
||
1344 | cli |
||
1345 | call read_hd_file |
||
1346 | sti |
||
1347 | pop ebp |
||
1348 | test eax,eax |
||
1349 | jnz .endloop1 ;check io errors |
||
1350 | |||
1351 | mov esi,[esp+8+4] ;work area |
||
1352 | add esi,1024 |
||
1353 | mov eax,[esp+4] ;current page table |
||
1354 | mov eax,[eax] |
||
1355 | and eax,not (4096-1) |
||
1356 | call MEM_Get_Linear_Address;calculate linear page address |
||
1357 | lea edi,[eax+ebp] ;add page offset |
||
1358 | mov ecx,512/4 |
||
1359 | cld |
||
1360 | rep movsd ;copy data |
||
1361 | |||
1362 | pop ecx |
||
1363 | inc ecx ;next block |
||
1364 | mov eax,[app_i_end] ;todo: precalculate ([app_i_end]+4095)/4096 |
||
1365 | add eax,512-1 |
||
1366 | shr eax,9 ;calculate application image size |
||
1367 | cmp ecx,eax |
||
1368 | jg .endloop11 |
||
1369 | pop edx |
||
1370 | add ebp,512 ;new offset |
||
1371 | test ebp,4096 |
||
1372 | jz .loop1 |
||
1373 | xor ebp,ebp |
||
1374 | add edx,4 ;go to next page |
||
1375 | test edx,(4096-1) |
||
1376 | jnz .loop1 |
||
1377 | add dword [esp],4 ;go to next directory entry |
||
1378 | mov eax,[esp] |
||
1379 | mov eax,[eax] |
||
1380 | and eax,not (4096-1) |
||
1381 | call MEM_Get_Linear_Address |
||
1382 | mov edx,eax |
||
1383 | jmp .loop1 |
||
1384 | .endloop1: |
||
1385 | add esp,4 ;pop ecx |
||
1386 | .endloop11: |
||
1387 | add esp,4+4 ;pop edx, pop edx |
||
1388 | |||
1389 | ;add_app_parameters |
||
1390 | add esp,12 ;now pointer to parameters is on the top of the stack |
||
1391 | call new_start_application_fl.add_app_parameters ;start process |
||
1392 | mov [esp+28],eax |
||
1393 | popad |
||
1394 | ret |
||
1395 | |||
1396 | .cleanfailed_mem1: |
||
1397 | ;there is mem for directory entry, but there is no mem for pages |
||
1398 | ;so free directory entry |
||
1399 | mov eax,[new_process_place] |
||
1400 | shl eax,8 |
||
1401 | mov eax,[0x80000+eax+APPDATA.dir_table] |
||
1402 | call MEM_Free_Page |
||
1403 | .cleanfailed_mem: |
||
1404 | ;there is no mem for directory entry, display message. |
||
1405 | mov esi,start_not_enough_memory |
||
1406 | call sys_msg_board_str |
||
1407 | .cleanfailed: ;clean process name |
||
1408 | push ecx |
||
1409 | ;can't read file, clean process name. |
||
1410 | ;this avoid problems with panel application. |
||
1411 | mov edi,[new_process_place] |
||
1412 | shl edi,8 |
||
1413 | add edi,0x80000+APPDATA.app_name |
||
1414 | mov ecx,11 |
||
1415 | mov eax,' ' |
||
1416 | cld |
||
1417 | rep stosb |
||
1418 | pop eax |
||
1419 | .failed: |
||
1420 | ;no more slots |
||
1421 | add esp,16 |
||
1422 | mov [esp+1Ch], eax |
||
1423 | popad |
||
1424 | mov [application_table_status],0 |
||
1425 | sti |
||
1426 | ret |
||
1427 | end if |
||
1428 | |||
1429 | ; \begin{diamond} |
||
1430 | include 'debug.inc' |
||
1431 | |||
1432 | fs_execute: |
||
1433 | ; ebx - cmdline |
||
1434 | ; edx - flags |
||
1435 | ; ebp - full filename |
||
1436 | ; [esp+4] = procedure DoRead, [esp+8] = filesize & [esp+12]... - arguments for it |
||
1437 | pushad |
||
1438 | ; check filename length - with terminating NULL must be no more than 1024 symbols |
||
1439 | mov edi, ebp |
||
1440 | mov ecx, 1024 |
||
1441 | xor eax, eax |
||
1442 | repnz scasb |
||
1443 | jz @f |
||
1444 | popad |
||
1445 | mov eax, -ERROR_FILE_NOT_FOUND |
||
1446 | ret |
||
1447 | @@: |
||
1448 | |||
1449 | mov esi, new_process_loading |
||
1450 | call sys_msg_board_str ; write message to message board |
||
1451 | |||
1452 | ; lock application_table_status mutex |
||
1453 | .table_status: |
||
1454 | cli |
||
1455 | cmp [application_table_status], 0 |
||
1456 | jz .stf |
||
1457 | sti |
||
1458 | call change_task |
||
1459 | jmp .table_status |
||
1460 | .stf: |
||
1461 | call set_application_table_status |
||
1462 | push ebx ; save command line pointer for add_app_parameters |
||
1463 | |||
1464 | call find_new_process_place ; find new process slot |
||
1465 | call safe_sti |
||
1466 | test eax, eax |
||
1467 | mov ecx, -0x20 ; too many processes |
||
1468 | jz .failed |
||
1469 | |||
1470 | ; write application name |
||
1471 | push edi |
||
1472 | mov ecx, edi |
||
1473 | sub ecx, ebp |
||
1474 | mov [appl_path], ebp |
||
1475 | mov [appl_path_size], ecx |
||
1476 | dec edi |
||
1477 | std |
||
1478 | mov al, '/' |
||
1479 | repnz scasb |
||
1480 | cld |
||
1481 | jnz @f |
||
1482 | inc edi |
||
1483 | @@: |
||
1484 | inc edi |
||
1485 | ; now edi points to name without path |
||
1486 | mov esi, edi |
||
1487 | mov ecx, 8 ; 8 chars for name |
||
1488 | mov edi, [new_process_place] |
||
1489 | shl edi, cl |
||
1490 | add edi, 0x80000+APPDATA.app_name |
||
1491 | .copy_process_name_loop: |
||
1492 | lodsb |
||
1493 | cmp al, '.' |
||
1494 | jz .copy_process_name_done |
||
1495 | test al, al |
||
1496 | jz .copy_process_name_done |
||
1497 | stosb |
||
1498 | loop .copy_process_name_loop |
||
1499 | .copy_process_name_done: |
||
1500 | mov al, ' ' |
||
1501 | rep stosb |
||
1502 | pop eax |
||
1503 | mov cl, 3 ; 3 chars for extension |
||
1504 | dec esi |
||
1505 | @@: |
||
1506 | dec eax |
||
1507 | cmp eax, esi |
||
1508 | jbe .copy_process_ext_done |
||
1509 | cmp byte [eax], '.' |
||
1510 | jnz @b |
||
1511 | lea esi, [eax+1] |
||
1512 | .copy_process_ext_loop: |
||
1513 | lodsb |
||
1514 | test al, al |
||
1515 | jz .copy_process_ext_done |
||
1516 | stosb |
||
1517 | loop .copy_process_ext_loop |
||
1518 | .copy_process_ext_done: |
||
1519 | mov al, ' ' |
||
1520 | rep stosb |
||
1521 | |||
1522 | ; read header |
||
1523 | lea eax, [esp+8+36] |
||
1524 | mov edi, 0x90000 |
||
1525 | call dword [eax-4] |
||
1526 | mov ecx, eax |
||
1527 | neg ecx |
||
1528 | jnz .cleanfailed |
||
1529 | ; check menuet signature |
||
1530 | mov ecx, -0x1F |
||
1531 | cmp dword [0x90000], 'MENU' |
||
1532 | jnz .cleanfailed |
||
1533 | cmp word [0x90004], 'ET' |
||
1534 | jnz .cleanfailed |
||
1535 | call get_app_params |
||
1536 | mov ecx, -0x1F |
||
133 | diamond | 1537 | jc .cleanfailed |
1538 | ; sanity check - because we will load all file, |
||
1539 | ; file size must be not greater than memory size |
||
1540 | mov eax, [esp+8+36] |
||
1541 | cmp [app_mem], eax |
||
1542 | jb .cleanfailed |
||
129 | mikedld | 1543 | |
1544 | mov eax, [new_process_place] |
||
1545 | inc ecx ; -0x1E = no memory |
||
1546 | call create_app_cr3_table |
||
1547 | test eax, eax |
||
1548 | jz .cleanfailed_mem |
||
1549 | |||
1550 | call MEM_Get_Linear_Address |
||
1551 | |||
1552 | mov ebx, std_application_base_address |
||
1553 | mov ecx, [app_mem] |
||
1554 | add ecx, 4095 |
||
1555 | shr ecx, 12 |
||
1556 | mov edx, eax ; edx - linear address of page directory |
||
1557 | call mem_alloc_specified_region |
||
1558 | mov ecx, -0x1E ; no memory |
||
1559 | test eax, eax |
||
1560 | jz .cleanfailed_mem1 |
||
1561 | |||
1562 | add edx, std_application_base_address shr 20 |
||
1563 | mov eax, [edx] |
||
1564 | and eax, not 4095 |
||
1565 | call MEM_Get_Linear_Address |
||
1566 | push edx ; save pointer to first page table |
||
1567 | mov edx, eax |
||
1568 | ; read file |
||
1569 | ; first block is already read to 0x90000 |
||
1570 | mov eax, [edx] |
||
1571 | and eax, not 0xFFF |
||
1572 | call MEM_Get_Linear_Address |
||
1573 | mov esi, 0x90000 |
||
1574 | mov edi, eax |
||
1575 | mov ecx, 512/4 |
||
1576 | rep movsd |
||
1577 | sub edi, eax |
||
1578 | .loop1: |
||
1579 | ; [esp] = pointer to current page directory entry |
||
1580 | ; edx = pointer to current page table |
||
1581 | ; edi = offset in page |
||
1582 | mov eax, [edx] |
||
1583 | and eax, not 0xFFF |
||
1584 | call MEM_Get_Linear_Address |
||
1585 | push edi |
||
1586 | add edi, eax |
||
1587 | lea eax, [esp+8+36+8] |
||
1588 | call dword [eax-4] |
||
1589 | pop edi |
||
1590 | test eax, eax |
||
1591 | jnz .endloop1 |
||
1592 | add edi, 512 ; new offset |
||
1593 | cmp edi, 4096 |
||
1594 | jb .loop1 |
||
1595 | xor edi, edi |
||
1596 | add edx, 4 ; go to next page |
||
1597 | test edx, 4096-1 |
||
1598 | jnz .loop1 |
||
1599 | pop eax |
||
1600 | add eax, 4 ; go to next directory entry |
||
1601 | push eax |
||
1602 | mov eax, [eax] |
||
1603 | and eax, not 0xFFF |
||
1604 | call MEM_Get_Linear_Address |
||
1605 | mov edx, eax |
||
1606 | jmp .loop1 |
||
1607 | .endloop1: |
||
1608 | pop edx |
||
1609 | cmp eax, 6 |
||
1610 | jnz .cleanfailed_mem2 |
||
1611 | call new_start_application_fl.add_app_parameters |
||
1612 | mov [esp+28], eax |
||
1613 | popad |
||
1614 | ret |
||
1615 | |||
1616 | .cleanfailed_mem2: |
||
1617 | ; file read error; free all allocated mem |
||
1618 | mov ecx, eax |
||
1619 | neg ecx |
||
1620 | mov eax, [new_process_place] |
||
1621 | call dispose_app_cr3_table |
||
1622 | jmp .cleanfailed |
||
1623 | .cleanfailed_mem1: |
||
1624 | ; there is mem for directory entry, but there is no mem for pages |
||
1625 | ; so free directory entry |
||
1626 | mov eax, [new_process_place] |
||
1627 | shl eax, 8 |
||
1628 | mov eax, [0x80000+eax+0xB8] |
||
1629 | call MEM_Free_Page |
||
1630 | .cleanfailed_mem: |
||
1631 | ; there is no mem for directory entry, display message |
||
1632 | mov esi, start_not_enough_memory |
||
1633 | call sys_msg_board_str |
||
1634 | .cleanfailed: |
||
1635 | push ecx |
||
1636 | ; clean process name, this avoid problems with @panel |
||
1637 | mov edi, [new_process_place] |
||
1638 | shl edi, 8 |
||
1639 | add edi, 0x80000+APPDATA.app_name |
||
1640 | mov ecx, 11 |
||
1641 | mov al, ' ' |
||
1642 | rep stosb |
||
1643 | pop eax |
||
1644 | .failed: |
||
1645 | pop ebx |
||
1646 | mov [esp+28], eax |
||
1647 | popad |
||
1648 | mov [application_table_status], 0 |
||
1649 | call safe_sti |
||
1650 | ret |
||
1651 | ; \end{diamond}0>>-->-->-->-->256 |