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