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| Rev 5 | Rev 9 | ||
|---|---|---|---|
| Line 149... | Line 149... | ||
| 149 | add ecx,4095 |
149 | add ecx,4095 |
| 150 | shr ecx,12 |
150 | shr ecx,12 |
| 151 | mov edx,eax |
151 | mov edx,eax |
| 152 | call mem_alloc_specified_region ;allocate memory for application |
152 | call mem_alloc_specified_region ;allocate memory for application |
| 153 | test eax,eax |
153 | test eax,eax |
| 154 | jz .cleanfailed_mem |
154 | jz .cleanfailed_mem1 |
| Line 155... | Line 155... | ||
| 155 | 155 | ||
| 156 | mov eax,[edx+(std_application_base_address shr 20)] |
156 | mov eax,[edx+(std_application_base_address shr 20)] |
| 157 | and eax,not (4096-1) ;eax - physical address of first (for application memory) page table |
157 | and eax,not (4096-1) ;eax - physical address of first (for application memory) page table |
| 158 | call MEM_Get_Linear_Address |
158 | call MEM_Get_Linear_Address |
| Line 193... | Line 193... | ||
| 193 | add esp,8+4 ;pop linear address of page table entry and pointer to file name |
193 | add esp,8+4 ;pop linear address of page table entry and pointer to file name |
| 194 | call new_start_application_fl.add_app_parameters |
194 | call new_start_application_fl.add_app_parameters |
| 195 | mov [esp+28],eax |
195 | mov [esp+28],eax |
| 196 | popad |
196 | popad |
| 197 | ret |
197 | ret |
| - | 198 | ||
| - | 199 | .cleanfailed_mem1: |
|
| - | 200 | ;there is mem for directory entry, but there is no mem for pages |
|
| - | 201 | ;so free directory entry |
|
| - | 202 | mov eax,[new_process_place] |
|
| - | 203 | shl eax,8 |
|
| - | 204 | mov eax,[0x80000+eax+0xB8] |
|
| - | 205 | call MEM_Free_Page |
|
| 198 | .cleanfailed_mem: |
206 | .cleanfailed_mem: |
| - | 207 | ;there is no mem for directory entry, display message. |
|
| 199 | mov esi,start_not_enough_memory |
208 | mov esi,start_not_enough_memory |
| 200 | call sys_msg_board_str |
209 | call sys_msg_board_str |
| 201 | .cleanfailed: ;clean process name |
210 | .cleanfailed: ;clean process name |
| - | 211 | ;can't read file, clean process name. |
|
| - | 212 | ;this avoid problems with panel application. |
|
| 202 | mov edi,[new_process_place] |
213 | mov edi,[new_process_place] |
| 203 | shl edi,8 |
214 | shl edi,8 |
| 204 | add edi,0x80000 |
215 | add edi,0x80000 |
| 205 | mov ecx,11 |
216 | mov ecx,11 |
| 206 | mov eax,' ' |
217 | mov eax,' ' |
| 207 | cld |
218 | cld |
| 208 | rep stosb |
219 | rep stosb |
| 209 | .failed: |
220 | .failed: |
| - | 221 | ;no more slots |
|
| 210 | add esp,8+4 |
222 | add esp,8+4 |
| 211 | mov [application_table_status],0 |
223 | mov [application_table_status],0 |
| 212 | popad |
224 | popad |
| 213 | sti |
225 | sti |
| 214 | mov eax,-1 |
226 | mov eax,-1 |
| Line 294... | Line 306... | ||
| 294 | add ecx,4095 |
306 | add ecx,4095 |
| 295 | shr ecx,12 |
307 | shr ecx,12 |
| 296 | mov edx,eax |
308 | mov edx,eax |
| 297 | call mem_alloc_specified_region ;allocate memory for application |
309 | call mem_alloc_specified_region ;allocate memory for application |
| 298 | test eax,eax |
310 | test eax,eax |
| 299 | jz .cleanfailed_mem |
311 | jz .cleanfailed_mem1 |
| Line 300... | Line 312... | ||
| 300 | 312 | ||
| 301 | mov eax,[edx+(std_application_base_address shr 20)] |
313 | mov eax,[edx+(std_application_base_address shr 20)] |
| 302 | and eax,not (4096-1) ;eax - physical address of first (for application memory) page table |
314 | and eax,not (4096-1) ;eax - physical address of first (for application memory) page table |
| 303 | call MEM_Get_Linear_Address |
315 | call MEM_Get_Linear_Address |
| Line 338... | Line 350... | ||
| 338 | call .add_app_parameters |
350 | call .add_app_parameters |
| 339 | mov [esp+28],eax |
351 | mov [esp+28],eax |
| 340 | popad |
352 | popad |
| 341 | ret |
353 | ret |
| Line -... | Line 354... | ||
| - | 354 | ||
| - | 355 | .cleanfailed_mem1: |
|
| - | 356 | ;there is mem for directory entry, but there is no mem for pages |
|
| - | 357 | ;so free directory entry |
|
| - | 358 | mov eax,[new_process_place] |
|
| - | 359 | shl eax,8 |
|
| - | 360 | mov eax,[0x80000+eax+0xB8] |
|
| 342 | 361 | call MEM_Free_Page |
|
| - | 362 | .cleanfailed_mem: |
|
| 343 | .cleanfailed_mem: |
363 | ;there is no mem for directory entry, display message. |
| 344 | mov esi,start_not_enough_memory |
364 | mov esi,start_not_enough_memory |
| 345 | call sys_msg_board_str |
365 | call sys_msg_board_str |
| - | 366 | .cleanfailed: ;clean process name |
|
| - | 367 | ;can't read file, clean process name. |
|
| 346 | .cleanfailed: ;clean process name |
368 | ;this avoid problems with panel application. |
| 347 | mov edi,[new_process_place] |
369 | mov edi,[new_process_place] |
| 348 | shl edi,8 |
370 | shl edi,8 |
| 349 | add edi,0x80000 |
371 | add edi,0x80000 |
| 350 | mov ecx,11 |
372 | mov ecx,11 |
| 351 | mov eax,' ' |
373 | mov eax,' ' |
| 352 | cld |
374 | cld |
| 353 | rep stosb |
375 | rep stosb |
| - | 376 | .failed: |
|
| 354 | .failed: |
377 | ;no more slots |
| 355 | add esp,8 |
378 | add esp,8 |
| 356 | mov [application_table_status],0 |
379 | mov [application_table_status],0 |
| 357 | popad |
380 | popad |
| 358 | call safe_sti |
381 | call safe_sti |
| Line 448... | Line 471... | ||
| 448 | mov ecx,[new_process_place] |
471 | mov ecx,[new_process_place] |
| 449 | shl ecx,8 |
472 | shl ecx,8 |
| 450 | mov eax,[0x800B8+ecx] |
473 | mov eax,[0x800B8+ecx] |
| 451 | add eax,8+16 ;add flags |
474 | add eax,8+16 ;add flags |
| 452 | mov [l.cr3],eax |
475 | mov [l.cr3],eax |
| 453 | ;write cr3 in TSS of System Call Handler |
- | |
| 454 | mov ecx,[new_process_place] |
- | |
| 455 | shl ecx,7 |
- | |
| 456 | mov [0x298000+ecx+l.cr3-tss_sceleton],eax ;write directy to TSS |
- | |
| Line 457... | Line 476... | ||
| 457 | 476 | ||
| 458 | mov eax,[app_start] |
477 | mov eax,[app_start] |
| 459 | mov [l.eip],eax ;set eip in TSS |
478 | mov [l.eip],eax ;set eip in TSS |
| 460 | mov eax,[app_esp] |
479 | mov eax,[app_esp] |
| Line 1229... | Line 1248... | ||
| 1229 | add ecx,4096-1 |
1248 | add ecx,4096-1 |
| 1230 | shr ecx,12 |
1249 | shr ecx,12 |
| 1231 | mov edx,eax ;edx - linear address of page directory |
1250 | mov edx,eax ;edx - linear address of page directory |
| 1232 | call mem_alloc_specified_region ;allocate memory for application |
1251 | call mem_alloc_specified_region ;allocate memory for application |
| 1233 | test eax,eax |
1252 | test eax,eax |
| 1234 | jz .cleanfailed_mem |
1253 | jz .cleanfailed_mem1 |
| Line 1235... | Line 1254... | ||
| 1235 | 1254 | ||
| 1236 | add edx,(std_application_base_address shr 20) |
1255 | add edx,(std_application_base_address shr 20) |
| 1237 | mov eax,[edx] |
1256 | mov eax,[edx] |
| 1238 | and eax,not (4096-1) |
1257 | and eax,not (4096-1) |
| Line 1304... | Line 1323... | ||
| 1304 | call new_start_application_fl.add_app_parameters ;start process |
1323 | call new_start_application_fl.add_app_parameters ;start process |
| 1305 | mov [esp+28],eax |
1324 | mov [esp+28],eax |
| 1306 | popad |
1325 | popad |
| 1307 | ret |
1326 | ret |
| Line -... | Line 1327... | ||
| - | 1327 | ||
| - | 1328 | .cleanfailed_mem1: |
|
| - | 1329 | ;there is mem for directory entry, but there is no mem for pages |
|
| - | 1330 | ;so free directory entry |
|
| - | 1331 | mov eax,[new_process_place] |
|
| - | 1332 | shl eax,8 |
|
| - | 1333 | mov eax,[0x80000+eax+0xB8] |
|
| 1308 | 1334 | call MEM_Free_Page |
|
| - | 1335 | .cleanfailed_mem: |
|
| 1309 | .cleanfailed_mem: |
1336 | ;there is no mem for directory entry, display message. |
| 1310 | mov esi,start_not_enough_memory |
1337 | mov esi,start_not_enough_memory |
| 1311 | call sys_msg_board_str |
1338 | call sys_msg_board_str |
| - | 1339 | .cleanfailed: ;clean process name |
|
| - | 1340 | ;can't read file, clean process name. |
|
| 1312 | .cleanfailed: ;clean process name |
1341 | ;this avoid problems with panel application. |
| 1313 | mov edi,[new_process_place] |
1342 | mov edi,[new_process_place] |
| 1314 | shl edi,8 |
1343 | shl edi,8 |
| 1315 | add edi,0x80000 |
1344 | add edi,0x80000 |
| 1316 | mov ecx,11 |
1345 | mov ecx,11 |
| 1317 | mov eax,' ' |
1346 | mov eax,' ' |
| 1318 | cld |
1347 | cld |
| 1319 | rep stosb |
1348 | rep stosb |
| - | 1349 | .failed: |
|
| 1320 | .failed: |
1350 | ;no more slots |
| 1321 | add esp,16 |
1351 | add esp,16 |
| 1322 | popad |
1352 | popad |
| 1323 | mov eax,-1 |
1353 | mov eax,-1 |
| 1324 | mov [application_table_status],0 |
1354 | mov [application_table_status],0 |