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Rev | Author | Line No. | Line |
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444 | serge | 1 | $Revision: 437 $ |
2 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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3 | ;; ;; |
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4 | ;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;; |
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5 | ;; Distributed under terms of the GNU General Public License ;; |
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6 | ;; ;; |
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7 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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8 | |||
357 | serge | 9 | GREEDY_KERNEL equ 0 |
164 | serge | 10 | |
11 | struc APP_HEADER_00 |
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12 | { .banner dq ? |
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13 | .version dd ? ;+8 |
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14 | .start dd ? ;+12 |
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15 | .i_end dd ? ;+16 |
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16 | .mem_size dd ? ;+20 |
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17 | .i_param dd ? ;+24 |
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18 | } |
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19 | |||
20 | struc APP_HEADER_01 |
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21 | { .banner dq ? |
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22 | .version dd ? ;+8 |
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23 | .start dd ? ;+12 |
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24 | .i_end dd ? ;+16 |
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25 | .mem_size dd ? ;+20 |
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26 | .stack_top dd ? ;+24 |
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27 | .i_param dd ? ;+28 |
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28 | .i_icon dd ? ;+32 |
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29 | } |
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30 | |||
237 | serge | 31 | |
32 | struc APP_PARAMS |
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33 | { .app_cmdline ;0x00 |
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34 | .app_path ;0x04 |
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35 | .app_eip ;0x08 |
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36 | .app_esp ;0x0C |
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37 | .app_mem ;0x10 |
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38 | } |
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39 | |||
40 | macro _clear_ op |
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41 | { mov ecx, op/4 |
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42 | xor eax, eax |
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43 | cld |
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44 | rep stosd |
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45 | } |
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46 | |||
363 | serge | 47 | |
164 | serge | 48 | align 4 |
363 | serge | 49 | proc fs_execute |
50 | |||
51 | ;fn_read:dword, file_size:dword, cluster:dword |
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52 | |||
53 | ; ebx - cmdline |
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54 | ; edx - flags |
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55 | ; ebp - full filename |
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56 | ; [esp+4] = procedure DoRead, [esp+8] = filesize & [esp+12]... - arguments for it |
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57 | |||
237 | serge | 58 | locals |
363 | serge | 59 | cmdline rd 64 ;256/4 |
60 | filename rd 256 ;1024/4 |
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61 | flags dd ? |
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62 | |||
237 | serge | 63 | save_cr3 dd ? |
64 | slot dd ? |
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65 | slot_base dd ? |
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66 | file_base dd ? |
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67 | file_size dd ? |
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363 | serge | 68 | ;app header data |
69 | hdr_cmdline dd ? ;0x00 |
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70 | hdr_path dd ? ;0x04 |
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71 | hdr_eip dd ? ;0x08 |
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72 | hdr_esp dd ? ;0x0C |
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73 | hdr_mem dd ? ;0x10 |
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74 | hdr_i_end dd ? ;0x14 |
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237 | serge | 75 | endl |
164 | serge | 76 | |
363 | serge | 77 | pushad |
78 | |||
79 | mov [cmdline], ebx |
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80 | mov [flags], edx |
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81 | |||
82 | ; [ebp] pointer to filename |
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83 | |||
84 | lea eax, [filename] |
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85 | mov dword [eax+1020],0 ;force terminate |
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86 | ;string |
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87 | stdcall k_strncpy, eax, [ebp], 1023 |
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88 | |||
89 | lea eax, [cmdline] |
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90 | mov dword [eax+252], 0 |
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91 | stdcall k_strncpy, eax, [cmdline], 255 |
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92 | |||
93 | lea eax, [filename] |
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94 | stdcall load_file, eax |
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237 | serge | 95 | mov ecx, -ERROR_FILE_NOT_FOUND |
96 | test eax, eax |
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247 | serge | 97 | jz .err_file |
237 | serge | 98 | |
99 | mov [file_base], eax |
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100 | mov [file_size], ebx |
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101 | |||
363 | serge | 102 | lea ebx, [hdr_cmdline] |
237 | serge | 103 | call test_app_header |
104 | mov ecx, -0x1F |
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105 | test eax, eax |
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247 | serge | 106 | jz .err_hdr |
237 | serge | 107 | |
108 | mov esi, new_process_loading |
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109 | call sys_msg_board_str ; write message to message board |
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110 | |||
111 | .wait_lock: |
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112 | cmp [application_table_status],0 |
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113 | je .get_lock |
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114 | call change_task |
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115 | jmp .wait_lock |
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116 | |||
117 | .get_lock: |
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118 | mov eax, 1 |
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119 | xchg eax, [application_table_status] |
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120 | cmp eax, 0 |
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121 | jne .wait_lock |
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122 | |||
123 | call set_application_table_status |
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124 | |||
125 | call get_new_process_place |
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126 | test eax, eax |
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127 | mov ecx, -0x20 ; too many processes |
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269 | serge | 128 | jz .err |
237 | serge | 129 | |
130 | mov [slot], eax |
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131 | shl eax, 8 |
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380 | serge | 132 | add eax, SLOT_BASE |
237 | serge | 133 | mov [slot_base], eax |
134 | mov edi, eax |
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135 | _clear_ 256 ;clean extended information about process |
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136 | |||
137 | ; write application name |
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363 | serge | 138 | lea edi, [filename] |
237 | serge | 139 | mov al, '/' |
140 | call k_strrchr ; now eax points to name without path |
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141 | |||
142 | lea esi, [eax+1] |
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143 | test eax, eax |
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144 | jnz @F |
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363 | serge | 145 | lea esi, [filename] |
237 | serge | 146 | @@: |
147 | mov ecx, 8 ; 8 chars for name |
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148 | mov edi, [slot_base] |
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149 | .copy_process_name_loop: |
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150 | lodsb |
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151 | cmp al, '.' |
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152 | jz .copy_process_name_done |
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153 | test al, al |
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154 | jz .copy_process_name_done |
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155 | stosb |
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156 | loop .copy_process_name_loop |
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157 | .copy_process_name_done: |
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158 | |||
159 | mov ebx, cr3 |
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160 | mov [save_cr3], ebx |
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269 | serge | 161 | |
363 | serge | 162 | stdcall create_app_space,[hdr_mem],[file_base],[file_size] |
364 | diamond | 163 | mov ecx, -30 ; no memory |
237 | serge | 164 | test eax, eax |
165 | jz .failed |
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166 | |||
167 | mov ebx,[slot_base] |
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168 | mov [ebx+APPDATA.dir_table],eax |
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363 | serge | 169 | mov eax,[hdr_mem] |
237 | serge | 170 | mov [ebx+APPDATA.mem_size],eax |
171 | |||
357 | serge | 172 | if GREEDY_KERNEL |
173 | else |
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363 | serge | 174 | mov ecx, [hdr_mem] |
269 | serge | 175 | mov edi, [file_size] |
176 | add edi, 4095 |
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177 | and edi, not 4095 |
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178 | sub ecx, edi |
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179 | jna @F |
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180 | |||
181 | xor eax, eax |
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419 | serge | 182 | ; add edi, new_app_base |
237 | serge | 183 | cld |
269 | serge | 184 | rep stosb |
247 | serge | 185 | @@: |
269 | serge | 186 | end if |
187 | |||
188 | ; release only virtual space, not phisical memory |
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189 | |||
190 | stdcall free_kernel_space, [file_base] |
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363 | serge | 191 | lea eax, [hdr_cmdline] |
192 | lea ebx, [cmdline] |
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193 | lea ecx, [filename] |
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194 | stdcall set_app_params ,[slot],eax,ebx,ecx,[flags] |
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237 | serge | 195 | |
196 | mov eax, [save_cr3] |
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197 | call set_cr3 |
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198 | |||
247 | serge | 199 | xor ebx, ebx |
200 | mov [application_table_status],ebx ;unlock application_table_status mutex |
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201 | mov eax,[process_number] ;set result |
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164 | serge | 202 | ret |
237 | serge | 203 | .failed: |
204 | mov eax, [save_cr3] |
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205 | call set_cr3 |
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269 | serge | 206 | .err: |
247 | serge | 207 | .err_hdr: |
208 | stdcall kernel_free,[file_base] |
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209 | .err_file: |
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237 | serge | 210 | xor eax, eax |
211 | mov [application_table_status],eax |
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321 | diamond | 212 | mov eax, ecx |
237 | serge | 213 | ret |
214 | endp |
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164 | serge | 215 | |
237 | serge | 216 | align 4 |
217 | test_app_header: |
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218 | virtual at eax |
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219 | APP_HEADER_00 APP_HEADER_00 |
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220 | end virtual |
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221 | virtual at eax |
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164 | serge | 222 | APP_HEADER_01 APP_HEADER_01 |
223 | end virtual |
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224 | |||
237 | serge | 225 | cmp dword [eax], 'MENU' |
226 | jne .fail |
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227 | cmp word [eax+4],'ET' |
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228 | jne .fail |
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164 | serge | 229 | |
237 | serge | 230 | cmp [eax+6], word '00' |
231 | jne .check_01_header |
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164 | serge | 232 | |
237 | serge | 233 | mov ecx,[APP_HEADER_00.start] |
234 | mov [ebx+0x08], ecx ;app_eip |
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235 | mov edx,[APP_HEADER_00.mem_size] |
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236 | mov [ebx+0x10], edx ;app_mem |
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237 | shr edx,1 |
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238 | sub edx,0x10 |
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239 | mov [ebx+0x0C], edx ;app_esp |
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240 | mov ecx,[APP_HEADER_00.i_param] |
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241 | mov [ebx], ecx ;app_cmdline |
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242 | mov [ebx+4], dword 0 ;app_path |
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269 | serge | 243 | mov edx, [APP_HEADER_00.i_end] |
244 | mov [ebx+0x14], edx |
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164 | serge | 245 | ret |
246 | |||
237 | serge | 247 | .check_01_header: |
164 | serge | 248 | |
237 | serge | 249 | cmp [eax+6],word '01' |
250 | jne .fail |
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251 | |||
252 | mov ecx,[APP_HEADER_01.start] |
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253 | mov [ebx+0x08], ecx ;app_eip |
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254 | mov edx,[APP_HEADER_01.mem_size] |
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381 | serge | 255 | |
256 | ; \begin{diamond}[20.08.2006] |
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257 | ; sanity check (functions 19,58 load app_i_end bytes and that must |
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258 | ; fit in allocated memory to prevent kernel faults) |
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259 | cmp edx,[APP_HEADER_01.i_end] |
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260 | jb .fail |
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261 | ; \end{diamond}[20.08.2006] |
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262 | |||
237 | serge | 263 | mov [ebx+0x10], edx ;app_mem |
264 | mov ecx,[APP_HEADER_01.stack_top] |
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265 | mov [ebx+0x0C], ecx ;app_esp |
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266 | mov edx,[APP_HEADER_01.i_param] |
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267 | mov [ebx], edx ;app_cmdline |
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268 | mov ecx,[APP_HEADER_01.i_icon] |
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269 | mov [ebx+4], ecx ;app_path |
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269 | serge | 270 | mov edx, [APP_HEADER_01.i_end] |
271 | mov [ebx+0x14], edx |
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237 | serge | 272 | ret |
273 | .fail: |
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164 | serge | 274 | xor eax, eax |
275 | ret |
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276 | |||
277 | align 4 |
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278 | proc get_new_process_place |
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279 | ;input: |
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280 | ; none |
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281 | ;result: |
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282 | ; eax=[new_process_place]<>0 - ok |
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283 | ; 0 - failed. |
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284 | ;This function find least empty slot. |
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285 | ;It doesn't increase [TASK_COUNT]! |
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286 | mov eax,CURRENT_TASK |
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287 | mov ebx,[TASK_COUNT] |
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288 | inc ebx |
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289 | shl ebx,5 |
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290 | add ebx,eax ;ebx - address of process information for (last+1) slot |
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291 | .newprocessplace: |
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292 | ;eax = address of process information for current slot |
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293 | cmp eax,ebx |
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294 | jz .endnewprocessplace ;empty slot after high boundary |
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295 | add eax,0x20 |
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296 | cmp word [eax+0xa],9 ;check process state, 9 means that process slot is empty |
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297 | jnz .newprocessplace |
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298 | .endnewprocessplace: |
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299 | mov ebx,eax |
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300 | sub eax,CURRENT_TASK |
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301 | shr eax,5 ;calculate slot index |
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302 | cmp eax,256 |
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303 | jge .failed ;it should be <256 |
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304 | mov word [ebx+0xa],9 ;set process state to 9 (for slot after hight boundary) |
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305 | ret |
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306 | .failed: |
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307 | xor eax,eax |
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308 | ret |
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309 | endp |
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310 | |||
311 | align 4 |
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269 | serge | 312 | proc create_app_space stdcall, app_size:dword,img_base:dword,img_size:dword |
164 | serge | 313 | locals |
314 | app_pages dd ? |
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315 | img_pages dd ? |
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316 | dir_addr dd ? |
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317 | app_tabs dd ? |
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318 | endl |
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319 | |||
276 | serge | 320 | mov ebx, pg_data.pg_mutex |
321 | call wait_mutex ;ebx |
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164 | serge | 322 | |
323 | xor eax, eax |
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324 | mov [dir_addr], eax |
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325 | |||
326 | mov eax, [app_size] |
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172 | serge | 327 | add eax, 4095 |
164 | serge | 328 | and eax, NOT(4095) |
329 | mov [app_size], eax |
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330 | mov ebx, eax |
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331 | shr eax, 12 |
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332 | mov [app_pages], eax |
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170 | serge | 333 | |
164 | serge | 334 | add ebx, 0x3FFFFF |
335 | and ebx, NOT(0x3FFFFF) |
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336 | shr ebx, 22 |
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337 | mov [app_tabs], ebx |
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338 | |||
170 | serge | 339 | mov ecx, [img_size] |
340 | add ecx, 4095 |
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341 | and ecx, NOT(4095) |
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164 | serge | 342 | |
170 | serge | 343 | mov [img_size], ecx |
344 | shr ecx, 12 |
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345 | mov [img_pages], ecx |
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164 | serge | 346 | |
170 | serge | 347 | if GREEDY_KERNEL |
348 | lea eax, [ecx+ebx+2] ;only image size |
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349 | else |
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350 | lea eax, [eax+ebx+2] ;all requested memory |
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351 | end if |
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352 | cmp eax, [pg_data.pages_free] |
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353 | ja .fail |
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354 | |||
164 | serge | 355 | call alloc_page |
356 | test eax, eax |
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357 | jz .fail |
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358 | mov [dir_addr], eax |
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359 | stdcall map_page,[tmp_task_pdir],eax,dword PG_SW |
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360 | |||
361 | mov edi, [tmp_task_pdir] |
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418 | serge | 362 | mov ecx, (OS_BASE shr 20)/4 |
394 | serge | 363 | xor eax, eax |
418 | serge | 364 | cld |
394 | serge | 365 | rep stosd |
366 | |||
418 | serge | 367 | mov ecx, (OS_BASE shr 20)/4 |
400 | serge | 368 | mov esi, sys_pgdir+(OS_BASE shr 20) |
164 | serge | 369 | rep movsd |
370 | |||
378 | serge | 371 | mov eax, [dir_addr] |
418 | serge | 372 | or eax, PG_SW |
373 | mov [edi-4096+(page_tabs shr 20)], eax |
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374 | |||
375 | and eax, -4096 |
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164 | serge | 376 | call set_cr3 |
377 | |||
378 | mov edx, [app_tabs] |
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379 | mov edi, new_app_base |
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380 | @@: |
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381 | call alloc_page |
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382 | test eax, eax |
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383 | jz .fail |
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384 | |||
188 | serge | 385 | stdcall map_page_table, edi, eax |
164 | serge | 386 | add edi, 0x00400000 |
387 | dec edx |
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388 | jnz @B |
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389 | |||
390 | mov edi, new_app_base |
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391 | shr edi, 10 |
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365 | serge | 392 | add edi, page_tabs |
269 | serge | 393 | |
164 | serge | 394 | mov ecx, [app_tabs] |
395 | shl ecx, 10 |
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396 | xor eax, eax |
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397 | rep stosd |
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398 | |||
269 | serge | 399 | mov ecx, [img_pages] |
400 | mov ebx, PG_UW |
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164 | serge | 401 | mov edx, new_app_base |
269 | serge | 402 | mov esi, [img_base] |
403 | mov edi, new_app_base |
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404 | shr esi, 10 |
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405 | shr edi, 10 |
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365 | serge | 406 | add esi, page_tabs |
407 | add edi, page_tabs |
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269 | serge | 408 | .remap: |
409 | lodsd |
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410 | or eax, ebx ; force user level r/w access |
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411 | stosd |
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412 | add edx, 0x1000 |
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413 | dec [app_pages] |
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414 | dec ecx |
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415 | jnz .remap |
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416 | |||
417 | mov ecx, [app_pages] |
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418 | test ecx, ecx |
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419 | jz .done |
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420 | |||
421 | if GREEDY_KERNEL |
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422 | mov eax, 0x02 |
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423 | .reserve: |
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424 | stosd |
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425 | invlpg [edx] |
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426 | add edx, 4096 |
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427 | dec ecx |
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428 | jnz .reserve |
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429 | else |
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430 | |||
164 | serge | 431 | .alloc: |
432 | call alloc_page |
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433 | test eax, eax |
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434 | jz .fail |
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435 | |||
436 | stdcall map_page,edx,eax,dword PG_UW |
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437 | add edx, 0x1000 |
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269 | serge | 438 | dec [app_pages] |
164 | serge | 439 | jnz .alloc |
269 | serge | 440 | end if |
164 | serge | 441 | |
269 | serge | 442 | .done: |
164 | serge | 443 | stdcall map_page,[tmp_task_pdir],dword 0,dword PG_UNMAP |
444 | |||
445 | dec [pg_data.pg_mutex] |
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446 | mov eax, [dir_addr] |
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447 | ret |
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448 | .fail: |
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449 | dec [pg_data.pg_mutex] |
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450 | cmp [dir_addr], 0 |
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357 | serge | 451 | je @f |
164 | serge | 452 | stdcall destroy_app_space, [dir_addr] |
453 | @@: |
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454 | xor eax, eax |
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455 | ret |
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456 | endp |
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457 | |||
458 | align 4 |
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459 | set_cr3: |
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427 | serge | 460 | |
461 | mov ebx, [current_slot] |
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462 | mov [ebx+APPDATA.dir_table], eax |
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164 | serge | 463 | mov cr3, eax |
464 | ret |
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465 | |||
466 | align 4 |
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467 | proc destroy_page_table stdcall, pg_tab:dword |
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468 | |||
469 | push esi |
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470 | |||
471 | mov esi, [pg_tab] |
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472 | mov ecx, 1024 |
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473 | .free: |
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474 | mov eax, [esi] |
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475 | test eax, 1 |
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476 | jz .next |
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477 | call free_page |
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478 | .next: |
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479 | add esi, 4 |
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480 | dec ecx |
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481 | jnz .free |
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482 | pop esi |
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483 | ret |
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484 | endp |
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485 | |||
486 | align 4 |
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487 | proc destroy_app_space stdcall, pg_dir:dword |
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488 | |||
276 | serge | 489 | mov ebx, pg_data.pg_mutex |
490 | call wait_mutex ;ebx |
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164 | serge | 491 | |
492 | xor edx,edx |
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493 | mov eax,0x2 |
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494 | mov ebx, [pg_dir] |
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495 | .loop: |
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496 | ;eax = current slot of process |
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497 | mov ecx,eax |
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498 | shl ecx,5 |
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499 | cmp byte [CURRENT_TASK+ecx+0xa],9 ;if process running? |
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500 | jz @f ;skip empty slots |
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501 | shl ecx,3 |
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380 | serge | 502 | cmp [SLOT_BASE+ecx+0xB8],ebx ;compare page directory addresses |
164 | serge | 503 | jnz @f |
504 | inc edx ;thread found |
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505 | @@: |
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506 | inc eax |
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507 | cmp eax,[TASK_COUNT] ;exit loop if we look through all processes |
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508 | jle .loop |
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509 | |||
510 | ;edx = number of threads |
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511 | ;our process is zombi so it isn't counted |
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512 | cmp edx,1 |
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513 | jg .exit |
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514 | ;if there isn't threads then clear memory. |
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515 | |||
516 | mov eax, [pg_dir] |
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517 | and eax, not 0xFFF |
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518 | stdcall map_page,[tmp_task_pdir],eax,dword PG_SW |
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519 | mov esi, [tmp_task_pdir] |
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418 | serge | 520 | mov edi, (OS_BASE shr 20)/4 |
164 | serge | 521 | .destroy: |
522 | mov eax, [esi] |
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523 | test eax, 1 |
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524 | jz .next |
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525 | and eax, not 0xFFF |
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526 | stdcall map_page,[tmp_task_ptab],eax,dword PG_SW |
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527 | stdcall destroy_page_table, [tmp_task_ptab] |
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528 | mov eax, [esi] |
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529 | call free_page |
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530 | .next: |
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531 | add esi, 4 |
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532 | dec edi |
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533 | jnz .destroy |
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534 | |||
535 | mov eax, [pg_dir] |
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536 | call free_page |
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537 | .exit: |
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538 | stdcall map_page,[tmp_task_ptab],dword 0,dword PG_UNMAP |
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539 | stdcall map_page,[tmp_task_pdir],dword 0,dword PG_UNMAP |
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540 | dec [pg_data.pg_mutex] |
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541 | ret |
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542 | endp |
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543 | |||
544 | pid_to_slot: |
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545 | ;Input: |
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546 | ; eax - pid of process |
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547 | ;Output: |
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548 | ; eax - slot of process or 0 if process don't exists |
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549 | ;Search process by PID. |
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550 | push ebx |
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551 | push ecx |
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552 | mov ebx,[TASK_COUNT] |
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553 | shl ebx,5 |
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554 | mov ecx,2*32 |
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555 | |||
556 | .loop: |
||
557 | ;ecx=offset of current process info entry |
||
558 | ;ebx=maximum permitted offset |
||
559 | cmp byte [CURRENT_TASK+ecx+0xa],9 |
||
560 | jz .endloop ;skip empty slots |
||
561 | cmp [CURRENT_TASK+ecx+0x4],eax ;check PID |
||
562 | jz .pid_found |
||
563 | .endloop: |
||
564 | add ecx,32 |
||
565 | cmp ecx,ebx |
||
566 | jle .loop |
||
567 | |||
568 | pop ecx |
||
569 | pop ebx |
||
570 | xor eax,eax |
||
571 | ret |
||
572 | |||
573 | .pid_found: |
||
574 | shr ecx,5 |
||
575 | mov eax,ecx ;convert offset to index of slot |
||
576 | pop ecx |
||
577 | pop ebx |
||
578 | ret |
||
579 | |||
580 | check_region: |
||
581 | ;input: |
||
582 | ; ebx - start of buffer |
||
583 | ; ecx - size of buffer |
||
584 | ;result: |
||
585 | ; eax = 1 region lays in app memory |
||
586 | ; eax = 0 region don't lays in app memory |
||
587 | mov eax,[CURRENT_TASK] |
||
588 | jmp check_process_region |
||
589 | ;----------------------------------------------------------------------------- |
||
590 | check_process_region: |
||
591 | ;input: |
||
592 | ; eax - slot |
||
593 | ; ebx - start of buffer |
||
594 | ; ecx - size of buffer |
||
595 | ;result: |
||
596 | ; eax = 1 region lays in app memory |
||
597 | ; eax = 0 region don't lays in app memory |
||
598 | |||
599 | test ecx,ecx |
||
600 | jle .ok |
||
601 | shl eax,5 |
||
602 | cmp word [CURRENT_TASK+eax+0xa],0 |
||
603 | jnz .failed |
||
604 | shl eax,3 |
||
380 | serge | 605 | mov eax,[SLOT_BASE+eax+0xb8] |
164 | serge | 606 | test eax,eax |
607 | jz .failed |
||
608 | |||
609 | mov eax,1 |
||
610 | ret |
||
611 | |||
612 | |||
613 | ; call MEM_Get_Linear_Address |
||
614 | ; push ebx |
||
615 | ; push ecx |
||
616 | ; push edx |
||
617 | ; mov edx,ebx |
||
618 | ; and edx,not (4096-1) |
||
619 | ; sub ebx,edx |
||
620 | ; add ecx,ebx |
||
621 | ; mov ebx,edx |
||
622 | ; add ecx,(4096-1) |
||
623 | ; and ecx,not (4096-1) |
||
624 | ;.loop: |
||
625 | ;;eax - linear address of page directory |
||
626 | ;;ebx - current page |
||
627 | ;;ecx - current size |
||
628 | ; mov edx,ebx |
||
629 | ; shr edx,22 |
||
630 | ; mov edx,[eax+4*edx] |
||
631 | ; and edx,not (4096-1) |
||
632 | ; test edx,edx |
||
633 | ; jz .failed1 |
||
634 | ; push eax |
||
635 | ; mov eax,edx |
||
636 | ; call MEM_Get_Linear_Address |
||
637 | ; mov edx,ebx |
||
638 | ; shr edx,12 |
||
639 | ; and edx,(1024-1) |
||
640 | ; mov eax,[eax+4*edx] |
||
641 | ; and eax,not (4096-1) |
||
642 | ; test eax,eax |
||
643 | ; pop eax |
||
644 | ; jz .failed1 |
||
645 | ; add ebx,4096 |
||
646 | ; sub ecx,4096 |
||
647 | ; jg .loop |
||
648 | ; pop edx |
||
649 | ; pop ecx |
||
650 | ; pop ebx |
||
651 | .ok: |
||
652 | mov eax,1 |
||
653 | ret |
||
654 | ; |
||
655 | ;.failed1: |
||
656 | ; pop edx |
||
657 | ; pop ecx |
||
658 | ; pop ebx |
||
659 | .failed: |
||
660 | xor eax,eax |
||
661 | ret |
||
662 | |||
663 | align 4 |
||
664 | proc read_process_memory |
||
665 | ;Input: |
||
666 | ; eax - process slot |
||
667 | ; ebx - buffer address |
||
668 | ; ecx - buffer size |
||
669 | ; edx - start address in other process |
||
670 | ;Output: |
||
671 | ; eax - number of bytes read. |
||
672 | locals |
||
673 | slot dd ? |
||
674 | buff dd ? |
||
675 | r_count dd ? |
||
676 | offset dd ? |
||
677 | tmp_r_cnt dd ? |
||
678 | endl |
||
679 | |||
680 | mov [slot], eax |
||
681 | mov [buff], ebx |
||
682 | mov [r_count], ecx |
||
683 | mov [tmp_r_cnt], ecx |
||
684 | mov [offset], edx |
||
685 | |||
686 | pushad |
||
687 | .read_mem: |
||
688 | mov edx, [offset] |
||
689 | mov ebx, [tmp_r_cnt] |
||
690 | |||
691 | mov ecx, 0x400000 |
||
692 | and edx, 0x3FFFFF |
||
693 | sub ecx, edx |
||
694 | cmp ecx, ebx |
||
695 | jbe @f |
||
696 | mov ecx, ebx |
||
697 | @@: |
||
698 | cmp ecx, 0x8000 |
||
699 | jna @F |
||
700 | mov ecx, 0x8000 |
||
701 | @@: |
||
702 | mov eax, [slot] |
||
703 | shl eax,8 |
||
704 | mov ebx, [offset] |
||
419 | serge | 705 | ; add ebx, new_app_base |
164 | serge | 706 | push ecx |
707 | stdcall map_memEx, [proc_mem_map],\ |
||
380 | serge | 708 | [SLOT_BASE+eax+0xB8],\ |
164 | serge | 709 | ebx, ecx |
710 | pop ecx |
||
711 | |||
712 | mov esi, [offset] |
||
713 | and esi, 0xfff |
||
714 | add esi, [proc_mem_map] |
||
715 | mov edi, [buff] |
||
716 | mov edx, ecx |
||
717 | rep movsb |
||
718 | |||
719 | add [offset], edx |
||
720 | sub [tmp_r_cnt], edx |
||
721 | jnz .read_mem |
||
722 | |||
723 | popad |
||
724 | mov eax, [r_count] |
||
725 | ret |
||
726 | endp |
||
727 | |||
728 | align 4 |
||
729 | proc write_process_memory |
||
730 | ;Input: |
||
731 | ; eax - process slot |
||
732 | ; ebx - buffer address |
||
733 | ; ecx - buffer size |
||
734 | ; edx - start address in other process |
||
735 | ;Output: |
||
736 | ; eax - number of bytes written |
||
737 | |||
738 | locals |
||
739 | slot dd ? |
||
740 | buff dd ? |
||
741 | w_count dd ? |
||
742 | offset dd ? |
||
743 | tmp_w_cnt dd ? |
||
744 | endl |
||
745 | |||
746 | mov [slot], eax |
||
747 | mov [buff], ebx |
||
748 | mov [w_count], ecx |
||
749 | mov [tmp_w_cnt], ecx |
||
750 | mov [offset], edx |
||
751 | |||
752 | pushad |
||
753 | .read_mem: |
||
754 | mov edx, [offset] |
||
755 | mov ebx, [tmp_w_cnt] |
||
756 | |||
757 | mov ecx, 0x400000 |
||
758 | and edx, 0x3FFFFF |
||
759 | sub ecx, edx |
||
760 | cmp ecx, ebx |
||
761 | jbe @f |
||
762 | mov ecx, ebx |
||
763 | @@: |
||
764 | cmp ecx, 0x8000 |
||
765 | jna @F |
||
766 | mov ecx, 0x8000 |
||
767 | @@: |
||
768 | mov eax, [slot] |
||
769 | shl eax,8 |
||
770 | mov ebx, [offset] |
||
419 | serge | 771 | ; add ebx, new_app_base |
164 | serge | 772 | push ecx |
773 | stdcall map_memEx, [proc_mem_map],\ |
||
380 | serge | 774 | [SLOT_BASE+eax+0xB8],\ |
164 | serge | 775 | ebx, ecx |
776 | pop ecx |
||
777 | |||
778 | mov edi, [offset] |
||
779 | and edi, 0xfff |
||
780 | add edi, [proc_mem_map] |
||
781 | mov esi, [buff] |
||
782 | mov edx, ecx |
||
783 | rep movsb |
||
784 | |||
785 | add [offset], edx |
||
786 | sub [tmp_w_cnt], edx |
||
787 | jnz .read_mem |
||
788 | |||
789 | popad |
||
790 | mov eax, [w_count] |
||
791 | ret |
||
792 | endp |
||
793 | |||
794 | align 4 |
||
795 | proc new_sys_threads |
||
796 | locals |
||
797 | slot dd ? |
||
237 | serge | 798 | app_cmdline dd ? ;0x00 |
799 | app_path dd ? ;0x04 |
||
800 | app_eip dd ? ;0x08 |
||
801 | app_esp dd ? ;0x0C |
||
802 | app_mem dd ? ;0x10 |
||
164 | serge | 803 | endl |
804 | |||
237 | serge | 805 | cmp eax,1 |
806 | jne .failed ;other subfunctions |
||
164 | serge | 807 | |
237 | serge | 808 | xor eax,eax |
809 | mov [app_cmdline], eax |
||
810 | mov [app_path], eax |
||
811 | mov [app_eip], ebx |
||
812 | mov [app_esp], ecx |
||
164 | serge | 813 | |
814 | mov esi,new_process_loading |
||
815 | call sys_msg_board_str |
||
816 | .wait_lock: |
||
817 | cmp [application_table_status],0 |
||
818 | je .get_lock |
||
819 | call change_task |
||
820 | jmp .wait_lock |
||
821 | |||
822 | .get_lock: |
||
823 | mov eax, 1 |
||
824 | xchg eax, [application_table_status] |
||
825 | cmp eax, 0 |
||
826 | jne .wait_lock |
||
827 | |||
828 | call set_application_table_status |
||
829 | |||
830 | call get_new_process_place |
||
831 | test eax, eax |
||
832 | jz .failed |
||
833 | |||
834 | mov [slot], eax |
||
835 | |||
427 | serge | 836 | mov esi,[current_slot] |
237 | serge | 837 | mov ebx,esi ;ebx=esi - pointer to extended information about current thread |
164 | serge | 838 | |
237 | serge | 839 | mov edi, eax |
164 | serge | 840 | shl edi,8 |
380 | serge | 841 | add edi,SLOT_BASE |
237 | serge | 842 | mov edx,edi ;edx=edi - pointer to extended infomation about new thread |
164 | serge | 843 | mov ecx,256/4 |
237 | serge | 844 | xor eax, eax |
845 | cld |
||
846 | rep stosd ;clean extended information about new thread |
||
847 | mov esi,ebx |
||
164 | serge | 848 | mov edi,edx |
849 | mov ecx,11 |
||
237 | serge | 850 | rep movsb ;copy process name |
164 | serge | 851 | |
237 | serge | 852 | mov eax,[ebx+APPDATA.heap_base] |
853 | mov [edx+APPDATA.heap_base], eax |
||
164 | serge | 854 | |
237 | serge | 855 | mov ecx,[ebx+APPDATA.heap_top] |
856 | mov [edx+APPDATA.heap_top], ecx |
||
857 | |||
858 | mov eax,[ebx+APPDATA.mem_size] |
||
859 | mov [edx+APPDATA.mem_size], eax |
||
860 | |||
861 | mov ecx,[ebx+APPDATA.dir_table] |
||
862 | mov [edx+APPDATA.dir_table],ecx ;copy page directory |
||
863 | |||
864 | lea eax, [app_cmdline] |
||
865 | stdcall set_app_params ,[slot],eax,dword 0,\ |
||
866 | dword 0,dword 0 |
||
867 | |||
164 | serge | 868 | mov esi,new_process_running |
869 | call sys_msg_board_str ;output information about succefull startup |
||
870 | |||
871 | mov [application_table_status],0 ;unlock application_table_status mutex |
||
872 | mov eax,[process_number] ;set result |
||
873 | ret |
||
874 | .failed: |
||
875 | mov [application_table_status],0 |
||
876 | mov eax,-1 |
||
877 | ret |
||
878 | endp |
||
879 | |||
276 | serge | 880 | ; param |
881 | ; ebx=mutex |
||
882 | |||
164 | serge | 883 | align 4 |
276 | serge | 884 | wait_mutex: |
885 | push eax |
||
886 | push ebx |
||
321 | diamond | 887 | .do_wait: |
164 | serge | 888 | cmp dword [ebx],0 |
889 | je .get_lock |
||
890 | call change_task |
||
321 | diamond | 891 | jmp .do_wait |
164 | serge | 892 | .get_lock: |
893 | mov eax, 1 |
||
894 | xchg eax, [ebx] |
||
895 | test eax, eax |
||
321 | diamond | 896 | jnz .do_wait |
276 | serge | 897 | pop ebx |
898 | pop eax |
||
164 | serge | 899 | ret |
900 | |||
459 | serge | 901 | EFL_IF equ 0x0200 |
902 | EFL_IOPL1 equ 0x1000 |
||
903 | EFL_IOPL2 equ 0x2000 |
||
904 | EFL_IOPL3 equ 0x3000 |
||
905 | |||
906 | |||
237 | serge | 907 | align 4 |
908 | proc set_app_params stdcall,slot:dword, params:dword,\ |
||
909 | cmd_line:dword, app_path:dword, flags:dword |
||
164 | serge | 910 | |
357 | serge | 911 | locals |
912 | pl0_stack dd ? |
||
913 | endl |
||
237 | serge | 914 | |
418 | serge | 915 | stdcall kernel_alloc, RING0_STACK_SIZE+512 |
357 | serge | 916 | mov [pl0_stack], eax |
917 | |||
418 | serge | 918 | lea edi, [eax+RING0_STACK_SIZE] |
357 | serge | 919 | |
920 | mov eax, [slot] |
||
921 | mov ebx, eax |
||
922 | |||
923 | shl eax, 8 |
||
380 | serge | 924 | mov [eax+SLOT_BASE+APPDATA.fpu_state], edi |
925 | mov [eax+SLOT_BASE+APPDATA.fpu_handler], 0 |
||
926 | mov [eax+SLOT_BASE+APPDATA.sse_handler], 0 |
||
357 | serge | 927 | |
430 | serge | 928 | ;set default io permission map |
929 | mov [eax+SLOT_BASE+APPDATA.io_map],\ |
||
930 | (tss._io_map_0-OS_BASE+PG_MAP) |
||
931 | mov [eax+SLOT_BASE+APPDATA.io_map+4],\ |
||
932 | (tss._io_map_1-OS_BASE+PG_MAP) |
||
933 | |||
357 | serge | 934 | mov esi, fpu_data |
237 | serge | 935 | mov ecx, 512/4 |
936 | rep movsd |
||
937 | |||
357 | serge | 938 | cmp ebx,[TASK_COUNT] |
939 | jle .noinc |
||
940 | inc dword [TASK_COUNT] ;update number of processes |
||
237 | serge | 941 | .noinc: |
281 | serge | 942 | shl ebx,8 |
380 | serge | 943 | lea edx, [ebx+SLOT_BASE+APP_EV_OFFSET] |
944 | mov [SLOT_BASE+APPDATA.fd_ev+ebx],edx |
||
945 | mov [SLOT_BASE+APPDATA.bk_ev+ebx],edx |
||
354 | serge | 946 | |
947 | add edx, APP_OBJ_OFFSET-APP_EV_OFFSET |
||
380 | serge | 948 | mov [SLOT_BASE+APPDATA.fd_obj+ebx],edx |
949 | mov [SLOT_BASE+APPDATA.bk_obj+ebx],edx |
||
237 | serge | 950 | |
281 | serge | 951 | mov ecx, [def_cursor] |
380 | serge | 952 | mov [SLOT_BASE+APPDATA.cursor+ebx],ecx |
357 | serge | 953 | mov eax, [pl0_stack] |
380 | serge | 954 | mov [SLOT_BASE+APPDATA.pl0_stack+ebx],eax |
281 | serge | 955 | |
956 | shr ebx,3 |
||
237 | serge | 957 | mov eax, new_app_base |
958 | mov dword [CURRENT_TASK+ebx+0x10],eax |
||
959 | |||
960 | .add_command_line: |
||
961 | mov edx,[params] |
||
962 | mov edx,[edx] ;app_cmdline |
||
963 | test edx,edx |
||
964 | jz @F ;application don't need parameters |
||
281 | serge | 965 | |
966 | mov eax, edx |
||
967 | add eax, 256 |
||
968 | jc @f |
||
969 | |||
380 | serge | 970 | cmp eax, [SLOT_BASE+APPDATA.mem_size+ebx*8] |
281 | serge | 971 | ja @f |
972 | |||
262 | diamond | 973 | stdcall k_strncpy, edx, [cmd_line], 256 |
237 | serge | 974 | @@: |
975 | mov edx,[params] |
||
976 | mov edx, [edx+4] ;app_path |
||
977 | test edx,edx |
||
978 | jz @F ;application don't need path of file |
||
432 | serge | 979 | mov eax, edx |
980 | add eax, 1024 |
||
981 | jc @f |
||
982 | cmp eax, [SLOT_BASE+APPDATA.mem_size+ebx*8] |
||
983 | ja @f |
||
262 | diamond | 984 | stdcall k_strncpy, edx, [app_path], 1024 |
237 | serge | 985 | @@: |
986 | mov ebx,[slot] |
||
987 | mov eax,ebx |
||
988 | shl ebx,5 |
||
420 | serge | 989 | lea ecx,[draw_data+ebx] ;ecx - pointer to draw data |
990 | |||
237 | serge | 991 | ; set window state to 'normal' (non-minimized/maximized/rolled-up) state |
992 | mov [ebx+window_data+WDATA.fl_wstate], WSTATE_NORMAL |
||
993 | mov [ebx+window_data+WDATA.fl_redraw], 1 |
||
994 | add ebx,CURRENT_TASK ;ebx - pointer to information about process |
||
995 | mov [ebx+TASKDATA.wnd_number],al;set window number on screen = process slot |
||
996 | |||
997 | mov [ebx+TASKDATA.event_mask],dword 1+2+4 ;set default event flags (see 40 function) |
||
998 | |||
999 | inc dword [process_number] |
||
1000 | mov eax,[process_number] |
||
1001 | mov [ebx+4],eax ;set PID |
||
1002 | |||
1003 | ;set draw data to full screen |
||
1004 | |||
1005 | mov [ecx+0],dword 0 |
||
1006 | mov [ecx+4],dword 0 |
||
381 | serge | 1007 | mov eax,[ScreenWidth] |
237 | serge | 1008 | mov [ecx+8],eax |
381 | serge | 1009 | mov eax,[ScreenHeight] |
237 | serge | 1010 | mov [ecx+12],eax |
1011 | |||
430 | serge | 1012 | mov ebx, [pl0_stack] |
237 | serge | 1013 | mov esi,[params] |
430 | serge | 1014 | lea ecx, [ebx+REG_EIP] |
420 | serge | 1015 | xor eax, eax |
1016 | |||
1017 | mov [ebx+REG_RET], dword irq0.return |
||
1018 | mov [ebx+REG_EDI], eax |
||
1019 | mov [ebx+REG_ESI], eax |
||
1020 | mov [ebx+REG_EBP], eax |
||
1021 | mov [ebx+REG_ESP], ecx ;ebx+REG_EIP |
||
1022 | mov [ebx+REG_EBX], eax |
||
1023 | mov [ebx+REG_EDX], eax |
||
1024 | mov [ebx+REG_ECX], eax |
||
1025 | mov [ebx+REG_EAX], eax |
||
1026 | |||
1027 | mov eax, [esi+0x08] ;app_eip |
||
1028 | mov [ebx+REG_EIP], eax ;app_entry |
||
1029 | mov [ebx+REG_CS], dword app_code |
||
459 | serge | 1030 | mov [ebx+REG_EFLAGS], dword EFL_IOPL1+EFL_IF |
420 | serge | 1031 | |
1032 | mov eax, [esi+0x0C] ;app_esp |
||
1033 | mov [ebx+REG_APP_ESP], eax ;app_stack |
||
1034 | mov [ebx+REG_SS], dword app_data |
||
1035 | |||
1036 | lea ecx, [ebx+REG_RET] |
||
1037 | mov ebx, [slot] |
||
1038 | shl ebx, 8 |
||
1039 | mov [ebx+SLOT_BASE+APPDATA.saved_esp], ecx |
||
1040 | |||
237 | serge | 1041 | ;flush keyboard and buttons queue |
1042 | mov [KEY_COUNT],byte 0 |
||
1043 | mov [BTN_COUNT],byte 0 |
||
1044 | |||
1045 | mov edi,[slot] |
||
1046 | shl edi,5 |
||
1047 | add edi,window_data |
||
1048 | mov ebx,[slot] |
||
1049 | movzx esi,word [WIN_STACK+ebx*2] |
||
1050 | lea esi,[WIN_POS+esi*2] |
||
1051 | call windowactivate ;gui initialization |
||
1052 | |||
1053 | mov ebx,[slot] |
||
1054 | shl ebx,5 |
||
1055 | mov [CURRENT_TASK+ebx+0xa],byte 0 ;set process state - running |
||
1056 | ; set if debuggee |
||
1057 | mov eax, [flags] |
||
1058 | test byte [flags], 1 |
||
1059 | jz .no_debug |
||
1060 | mov [CURRENT_TASK+ebx+0xa],byte 1 ;set process state - suspended |
||
1061 | mov eax,[CURRENT_TASK] |
||
380 | serge | 1062 | mov [SLOT_BASE+ebx*8+0xac],eax ;set debugger PID - current |
237 | serge | 1063 | .no_debug: |
1064 | mov esi,new_process_running |
||
1065 | call sys_msg_board_str ;output information about succefull startup |
||
1066 | ret |
||
1067 | endp |
||
1068 | |||
164 | serge | 1069 | include "debug.inc"256 |
1070 |