Rev 859 | Rev 864 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
431 | serge | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
||
3 | ;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;; |
||
4 | ;; Distributed under terms of the GNU General Public License ;; |
||
5 | ;; ;; |
||
6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
||
7 | |||
593 | mikedld | 8 | $Revision: 861 $ |
9 | |||
10 | |||
357 | serge | 11 | GREEDY_KERNEL equ 0 |
164 | serge | 12 | |
13 | struc APP_HEADER_00 |
||
14 | { .banner dq ? |
||
15 | .version dd ? ;+8 |
||
16 | .start dd ? ;+12 |
||
17 | .i_end dd ? ;+16 |
||
18 | .mem_size dd ? ;+20 |
||
19 | .i_param dd ? ;+24 |
||
20 | } |
||
21 | |||
22 | struc APP_HEADER_01 |
||
23 | { .banner dq ? |
||
24 | .version dd ? ;+8 |
||
25 | .start dd ? ;+12 |
||
26 | .i_end dd ? ;+16 |
||
27 | .mem_size dd ? ;+20 |
||
28 | .stack_top dd ? ;+24 |
||
29 | .i_param dd ? ;+28 |
||
30 | .i_icon dd ? ;+32 |
||
31 | } |
||
32 | |||
237 | serge | 33 | |
34 | struc APP_PARAMS |
||
774 | Rus | 35 | { .app_cmdline ;0x00 |
36 | .app_path ;0x04 |
||
37 | .app_eip ;0x08 |
||
38 | .app_esp ;0x0C |
||
39 | .app_mem ;0x10 |
||
237 | serge | 40 | } |
41 | |||
42 | macro _clear_ op |
||
43 | { mov ecx, op/4 |
||
44 | xor eax, eax |
||
45 | cld |
||
46 | rep stosd |
||
47 | } |
||
48 | |||
521 | diamond | 49 | fs_execute_from_sysdir: |
774 | Rus | 50 | xor ebx, ebx |
51 | xor edx, edx |
||
52 | mov esi, sysdir_path |
||
363 | serge | 53 | |
164 | serge | 54 | align 4 |
363 | serge | 55 | proc fs_execute |
56 | |||
57 | ;fn_read:dword, file_size:dword, cluster:dword |
||
58 | |||
59 | ; ebx - cmdline |
||
60 | ; edx - flags |
||
61 | ; ebp - full filename |
||
62 | ; [esp+4] = procedure DoRead, [esp+8] = filesize & [esp+12]... - arguments for it |
||
63 | |||
774 | Rus | 64 | locals |
65 | cmdline rd 64 ;256/4 |
||
66 | filename rd 256 ;1024/4 |
||
67 | flags dd ? |
||
363 | serge | 68 | |
774 | Rus | 69 | save_cr3 dd ? |
70 | slot dd ? |
||
71 | slot_base dd ? |
||
72 | file_base dd ? |
||
73 | file_size dd ? |
||
74 | ;app header data |
||
75 | hdr_cmdline dd ? ;0x00 |
||
76 | hdr_path dd ? ;0x04 |
||
77 | hdr_eip dd ? ;0x08 |
||
78 | hdr_esp dd ? ;0x0C |
||
79 | hdr_mem dd ? ;0x10 |
||
80 | hdr_i_end dd ? ;0x14 |
||
81 | endl |
||
164 | serge | 82 | |
774 | Rus | 83 | pushad |
363 | serge | 84 | |
774 | Rus | 85 | mov [flags], edx |
363 | serge | 86 | |
87 | ; [ebp] pointer to filename |
||
88 | |||
774 | Rus | 89 | lea edi, [filename] |
90 | lea ecx, [edi+1024] |
||
91 | mov al, '/' |
||
92 | stosb |
||
521 | diamond | 93 | @@: |
774 | Rus | 94 | cmp edi, ecx |
95 | jae .bigfilename |
||
96 | lodsb |
||
97 | stosb |
||
98 | test al, al |
||
99 | jnz @b |
||
100 | mov esi, [ebp] |
||
101 | test esi, esi |
||
102 | jz .namecopied |
||
103 | mov byte [edi-1], '/' |
||
521 | diamond | 104 | @@: |
774 | Rus | 105 | cmp edi, ecx |
106 | jae .bigfilename |
||
107 | lodsb |
||
108 | stosb |
||
109 | test al, al |
||
110 | jnz @b |
||
111 | jmp .namecopied |
||
521 | diamond | 112 | .bigfilename: |
774 | Rus | 113 | popad |
114 | mov eax, -ERROR_FILE_NOT_FOUND |
||
115 | ret |
||
521 | diamond | 116 | .namecopied: |
363 | serge | 117 | |
774 | Rus | 118 | mov [cmdline], ebx |
119 | test ebx, ebx |
||
120 | jz @F |
||
519 | serge | 121 | |
774 | Rus | 122 | lea eax, [cmdline] |
123 | mov dword [eax+252], 0 |
||
124 | stdcall strncpy, eax, ebx, 255 |
||
519 | serge | 125 | @@: |
774 | Rus | 126 | lea eax, [filename] |
127 | stdcall load_file, eax |
||
128 | mov ecx, -ERROR_FILE_NOT_FOUND |
||
129 | test eax, eax |
||
130 | jz .err_file |
||
237 | serge | 131 | |
774 | Rus | 132 | mov [file_base], eax |
133 | mov [file_size], ebx |
||
237 | serge | 134 | |
774 | Rus | 135 | lea ebx, [hdr_cmdline] |
136 | call test_app_header |
||
137 | mov ecx, -0x1F |
||
138 | test eax, eax |
||
139 | jz .err_hdr |
||
237 | serge | 140 | |
774 | Rus | 141 | DEBUGF 1,"%s",new_process_loading |
237 | serge | 142 | |
143 | .wait_lock: |
||
774 | Rus | 144 | cmp [application_table_status],0 |
145 | je .get_lock |
||
146 | call change_task |
||
147 | jmp .wait_lock |
||
237 | serge | 148 | |
149 | .get_lock: |
||
774 | Rus | 150 | mov eax, 1 |
151 | xchg eax, [application_table_status] |
||
152 | cmp eax, 0 |
||
153 | jne .wait_lock |
||
237 | serge | 154 | |
774 | Rus | 155 | call set_application_table_status |
237 | serge | 156 | |
774 | Rus | 157 | call get_new_process_place |
158 | test eax, eax |
||
159 | mov ecx, -0x20 ; too many processes |
||
160 | jz .err |
||
237 | serge | 161 | |
774 | Rus | 162 | mov [slot], eax |
163 | shl eax, 8 |
||
164 | add eax, SLOT_BASE |
||
165 | mov [slot_base], eax |
||
166 | mov edi, eax |
||
167 | _clear_ 256 ;clean extended information about process |
||
237 | serge | 168 | |
169 | ; write application name |
||
774 | Rus | 170 | lea eax, [filename] |
171 | stdcall strrchr, eax, '/' ; now eax points to name without path |
||
237 | serge | 172 | |
774 | Rus | 173 | lea esi, [eax+1] |
174 | test eax, eax |
||
175 | jnz @F |
||
176 | lea esi, [filename] |
||
237 | serge | 177 | @@: |
774 | Rus | 178 | mov ecx, 8 ; 8 chars for name |
179 | mov edi, [slot_base] |
||
237 | serge | 180 | .copy_process_name_loop: |
774 | Rus | 181 | lodsb |
182 | cmp al, '.' |
||
183 | jz .copy_process_name_done |
||
184 | test al, al |
||
185 | jz .copy_process_name_done |
||
186 | stosb |
||
187 | loop .copy_process_name_loop |
||
237 | serge | 188 | .copy_process_name_done: |
189 | |||
839 | serge | 190 | |
774 | Rus | 191 | mov ebx, cr3 |
192 | mov [save_cr3], ebx |
||
269 | serge | 193 | |
843 | serge | 194 | stdcall create_app_space,[hdr_mem],[file_base],[file_size] |
195 | mov ecx, -30 ; no memory |
||
774 | Rus | 196 | test eax, eax |
197 | jz .failed |
||
237 | serge | 198 | |
774 | Rus | 199 | mov ebx,[slot_base] |
200 | mov [ebx+APPDATA.dir_table],eax |
||
201 | mov eax,[hdr_mem] |
||
202 | mov [ebx+APPDATA.mem_size],eax |
||
237 | serge | 203 | |
357 | serge | 204 | if GREEDY_KERNEL |
205 | else |
||
774 | Rus | 206 | mov ecx, [hdr_mem] |
207 | mov edi, [file_size] |
||
208 | add edi, 4095 |
||
209 | and edi, not 4095 |
||
210 | sub ecx, edi |
||
211 | jna @F |
||
269 | serge | 212 | |
774 | Rus | 213 | xor eax, eax |
819 | serge | 214 | cld |
774 | Rus | 215 | rep stosb |
247 | serge | 216 | @@: |
269 | serge | 217 | end if |
218 | |||
219 | ; release only virtual space, not phisical memory |
||
220 | |||
774 | Rus | 221 | stdcall free_kernel_space, [file_base] |
222 | lea eax, [hdr_cmdline] |
||
223 | lea ebx, [cmdline] |
||
224 | lea ecx, [filename] |
||
225 | stdcall set_app_params ,[slot],eax,ebx,ecx,[flags] |
||
237 | serge | 226 | |
774 | Rus | 227 | mov eax, [save_cr3] |
228 | call set_cr3 |
||
237 | serge | 229 | |
774 | Rus | 230 | xor ebx, ebx |
231 | mov [application_table_status],ebx ;unlock application_table_status mutex |
||
232 | mov eax,[process_number] ;set result |
||
233 | ret |
||
237 | serge | 234 | .failed: |
774 | Rus | 235 | mov eax, [save_cr3] |
236 | call set_cr3 |
||
269 | serge | 237 | .err: |
247 | serge | 238 | .err_hdr: |
774 | Rus | 239 | stdcall kernel_free,[file_base] |
247 | serge | 240 | .err_file: |
774 | Rus | 241 | xor eax, eax |
242 | mov [application_table_status],eax |
||
243 | mov eax, ecx |
||
244 | ret |
||
237 | serge | 245 | endp |
164 | serge | 246 | |
237 | serge | 247 | align 4 |
248 | test_app_header: |
||
774 | Rus | 249 | virtual at eax |
250 | APP_HEADER_00 APP_HEADER_00 |
||
251 | end virtual |
||
252 | virtual at eax |
||
253 | APP_HEADER_01 APP_HEADER_01 |
||
254 | end virtual |
||
164 | serge | 255 | |
774 | Rus | 256 | cmp dword [eax], 'MENU' |
257 | jne .fail |
||
258 | cmp word [eax+4],'ET' |
||
259 | jne .fail |
||
164 | serge | 260 | |
774 | Rus | 261 | cmp [eax+6], word '00' |
262 | jne .check_01_header |
||
164 | serge | 263 | |
774 | Rus | 264 | mov ecx,[APP_HEADER_00.start] |
265 | mov [ebx+0x08], ecx ;app_eip |
||
266 | mov edx,[APP_HEADER_00.mem_size] |
||
267 | mov [ebx+0x10], edx ;app_mem |
||
268 | shr edx,1 |
||
269 | sub edx,0x10 |
||
270 | mov [ebx+0x0C], edx ;app_esp |
||
271 | mov ecx,[APP_HEADER_00.i_param] |
||
272 | mov [ebx], ecx ;app_cmdline |
||
273 | mov [ebx+4], dword 0 ;app_path |
||
274 | mov edx, [APP_HEADER_00.i_end] |
||
275 | mov [ebx+0x14], edx |
||
276 | ret |
||
164 | serge | 277 | |
237 | serge | 278 | .check_01_header: |
164 | serge | 279 | |
774 | Rus | 280 | cmp [eax+6],word '01' |
281 | jne .fail |
||
237 | serge | 282 | |
774 | Rus | 283 | mov ecx,[APP_HEADER_01.start] |
284 | mov [ebx+0x08], ecx ;app_eip |
||
285 | mov edx,[APP_HEADER_01.mem_size] |
||
381 | serge | 286 | |
287 | ; \begin{diamond}[20.08.2006] |
||
288 | ; sanity check (functions 19,58 load app_i_end bytes and that must |
||
289 | ; fit in allocated memory to prevent kernel faults) |
||
774 | Rus | 290 | cmp edx,[APP_HEADER_01.i_end] |
291 | jb .fail |
||
381 | serge | 292 | ; \end{diamond}[20.08.2006] |
293 | |||
774 | Rus | 294 | mov [ebx+0x10], edx ;app_mem |
295 | mov ecx,[APP_HEADER_01.stack_top] |
||
296 | mov [ebx+0x0C], ecx ;app_esp |
||
297 | mov edx,[APP_HEADER_01.i_param] |
||
298 | mov [ebx], edx ;app_cmdline |
||
299 | mov ecx,[APP_HEADER_01.i_icon] |
||
300 | mov [ebx+4], ecx ;app_path |
||
301 | mov edx, [APP_HEADER_01.i_end] |
||
302 | mov [ebx+0x14], edx |
||
303 | ret |
||
237 | serge | 304 | .fail: |
774 | Rus | 305 | xor eax, eax |
306 | ret |
||
164 | serge | 307 | |
308 | align 4 |
||
309 | proc get_new_process_place |
||
310 | ;input: |
||
311 | ; none |
||
312 | ;result: |
||
313 | ; eax=[new_process_place]<>0 - ok |
||
314 | ; 0 - failed. |
||
315 | ;This function find least empty slot. |
||
316 | ;It doesn't increase [TASK_COUNT]! |
||
774 | Rus | 317 | mov eax,CURRENT_TASK |
318 | mov ebx,[TASK_COUNT] |
||
319 | inc ebx |
||
320 | shl ebx,5 |
||
321 | add ebx,eax ;ebx - address of process information for (last+1) slot |
||
164 | serge | 322 | .newprocessplace: |
323 | ;eax = address of process information for current slot |
||
774 | Rus | 324 | cmp eax,ebx |
325 | jz .endnewprocessplace ;empty slot after high boundary |
||
326 | add eax,0x20 |
||
327 | cmp word [eax+0xa],9 ;check process state, 9 means that process slot is empty |
||
328 | jnz .newprocessplace |
||
164 | serge | 329 | .endnewprocessplace: |
774 | Rus | 330 | mov ebx,eax |
331 | sub eax,CURRENT_TASK |
||
332 | shr eax,5 ;calculate slot index |
||
333 | cmp eax,256 |
||
334 | jge .failed ;it should be <256 |
||
335 | mov word [ebx+0xa],9 ;set process state to 9 (for slot after hight boundary) |
||
336 | ret |
||
164 | serge | 337 | .failed: |
774 | Rus | 338 | xor eax,eax |
339 | ret |
||
164 | serge | 340 | endp |
341 | |||
342 | align 4 |
||
269 | serge | 343 | proc create_app_space stdcall, app_size:dword,img_base:dword,img_size:dword |
774 | Rus | 344 | locals |
345 | app_pages dd ? |
||
346 | img_pages dd ? |
||
347 | dir_addr dd ? |
||
348 | app_tabs dd ? |
||
349 | endl |
||
164 | serge | 350 | |
774 | Rus | 351 | mov ebx, pg_data.pg_mutex |
352 | call wait_mutex ;ebx |
||
164 | serge | 353 | |
774 | Rus | 354 | xor eax, eax |
355 | mov [dir_addr], eax |
||
164 | serge | 356 | |
774 | Rus | 357 | mov eax, [app_size] |
358 | add eax, 4095 |
||
861 | serge | 359 | and eax, not 4095 |
774 | Rus | 360 | mov [app_size], eax |
361 | mov ebx, eax |
||
362 | shr eax, 12 |
||
363 | mov [app_pages], eax |
||
170 | serge | 364 | |
774 | Rus | 365 | add ebx, 0x3FFFFF |
861 | serge | 366 | and ebx, not 0x3FFFFF |
774 | Rus | 367 | shr ebx, 22 |
368 | mov [app_tabs], ebx |
||
164 | serge | 369 | |
774 | Rus | 370 | mov ecx, [img_size] |
371 | add ecx, 4095 |
||
861 | serge | 372 | and ecx, not 4095 |
164 | serge | 373 | |
774 | Rus | 374 | mov [img_size], ecx |
375 | shr ecx, 12 |
||
376 | mov [img_pages], ecx |
||
164 | serge | 377 | |
861 | serge | 378 | ; if GREEDY_KERNEL |
379 | ; lea eax, [ecx+ebx+2] ;only image size |
||
380 | ; else |
||
381 | ; lea eax, [eax+ebx+2] ;all requested memory |
||
382 | ; end if |
||
843 | serge | 383 | ; cmp eax, [pg_data.pages_free] |
384 | ; ja .fail |
||
170 | serge | 385 | |
854 | serge | 386 | call _alloc_page |
774 | Rus | 387 | test eax, eax |
861 | serge | 388 | mov [dir_addr], eax |
774 | Rus | 389 | jz .fail |
164 | serge | 390 | |
861 | serge | 391 | ;lea edi, [eax + OS_BASE] |
392 | ;mov ecx, (OS_BASE shr 20)/4 |
||
393 | ;xor eax, eax |
||
394 | ;cld |
||
395 | ;rep stosd |
||
465 | serge | 396 | |
861 | serge | 397 | ;mov ecx, 1024-(OS_BASE shr 20)/4 |
398 | ;mov esi, _sys_pdbr+(OS_BASE shr 20) |
||
399 | ;rep movsd |
||
164 | serge | 400 | |
861 | serge | 401 | lea edi, [eax+OS_BASE] |
402 | mov ecx, 512 |
||
403 | xor eax, eax |
||
404 | cld |
||
405 | rep stosd |
||
406 | |||
407 | mov ecx, 512 |
||
408 | mov esi, _sys_pdbr+(HEAP_BASE shr 20) |
||
409 | rep movsd |
||
410 | |||
839 | serge | 411 | mov edi, [dir_addr] |
412 | lea eax, [edi+PG_SW] |
||
413 | mov [edi+OS_BASE+(page_tabs shr 20)], eax |
||
378 | serge | 414 | |
861 | serge | 415 | mov eax, edi |
774 | Rus | 416 | call set_cr3 |
164 | serge | 417 | |
861 | serge | 418 | |
419 | mov edx, [app_tabs] |
||
420 | mov edi, master_tab |
||
164 | serge | 421 | @@: |
854 | serge | 422 | call _alloc_page |
774 | Rus | 423 | test eax, eax |
424 | jz .fail |
||
164 | serge | 425 | |
861 | serge | 426 | or eax, PG_UW |
427 | stosd |
||
428 | dec edx |
||
429 | jnz @B |
||
164 | serge | 430 | |
839 | serge | 431 | mov edi, page_tabs |
269 | serge | 432 | |
774 | Rus | 433 | mov ecx, [app_tabs] |
434 | shl ecx, 10 |
||
435 | xor eax, eax |
||
436 | rep stosd |
||
164 | serge | 437 | |
774 | Rus | 438 | mov ecx, [img_pages] |
439 | mov ebx, PG_UW |
||
839 | serge | 440 | mov esi, [img_base] |
774 | Rus | 441 | shr esi, 10 |
442 | add esi, page_tabs |
||
839 | serge | 443 | xor edx, edx |
444 | mov edi, page_tabs |
||
269 | serge | 445 | .remap: |
774 | Rus | 446 | lodsd |
447 | or eax, ebx ; force user level r/w access |
||
448 | stosd |
||
449 | add edx, 0x1000 |
||
450 | dec [app_pages] |
||
451 | dec ecx |
||
452 | jnz .remap |
||
269 | serge | 453 | |
774 | Rus | 454 | mov ecx, [app_pages] |
455 | test ecx, ecx |
||
456 | jz .done |
||
269 | serge | 457 | |
458 | if GREEDY_KERNEL |
||
774 | Rus | 459 | mov eax, 0x02 |
819 | serge | 460 | rep stosd |
269 | serge | 461 | else |
462 | |||
164 | serge | 463 | .alloc: |
854 | serge | 464 | call _alloc_page |
774 | Rus | 465 | test eax, eax |
466 | jz .fail |
||
164 | serge | 467 | |
774 | Rus | 468 | stdcall map_page,edx,eax,dword PG_UW |
469 | add edx, 0x1000 |
||
470 | dec [app_pages] |
||
471 | jnz .alloc |
||
269 | serge | 472 | end if |
164 | serge | 473 | |
269 | serge | 474 | .done: |
839 | serge | 475 | dec [pg_data.pg_mutex] |
774 | Rus | 476 | mov eax, [dir_addr] |
477 | ret |
||
164 | serge | 478 | .fail: |
774 | Rus | 479 | dec [pg_data.pg_mutex] |
480 | cmp [dir_addr], 0 |
||
481 | je @f |
||
482 | stdcall destroy_app_space, [dir_addr] |
||
164 | serge | 483 | @@: |
774 | Rus | 484 | xor eax, eax |
485 | ret |
||
164 | serge | 486 | endp |
487 | |||
488 | align 4 |
||
489 | set_cr3: |
||
465 | serge | 490 | |
774 | Rus | 491 | mov ebx, [current_slot] |
492 | mov [ebx+APPDATA.dir_table], eax |
||
493 | mov cr3, eax |
||
494 | ret |
||
164 | serge | 495 | |
496 | align 4 |
||
497 | proc destroy_page_table stdcall, pg_tab:dword |
||
498 | |||
774 | Rus | 499 | push esi |
164 | serge | 500 | |
774 | Rus | 501 | mov esi, [pg_tab] |
502 | mov ecx, 1024 |
||
164 | serge | 503 | .free: |
774 | Rus | 504 | mov eax, [esi] |
505 | test eax, 1 |
||
506 | jz .next |
||
819 | serge | 507 | test eax, 1 shl 9 |
508 | jnz .next ;skip shared pages |
||
774 | Rus | 509 | call free_page |
164 | serge | 510 | .next: |
774 | Rus | 511 | add esi, 4 |
512 | dec ecx |
||
513 | jnz .free |
||
514 | pop esi |
||
515 | ret |
||
164 | serge | 516 | endp |
517 | |||
518 | align 4 |
||
519 | proc destroy_app_space stdcall, pg_dir:dword |
||
520 | |||
774 | Rus | 521 | mov ebx, pg_data.pg_mutex |
522 | call wait_mutex ;ebx |
||
164 | serge | 523 | |
774 | Rus | 524 | xor edx,edx |
525 | mov eax,0x2 |
||
526 | mov ebx, [pg_dir] |
||
164 | serge | 527 | .loop: |
528 | ;eax = current slot of process |
||
774 | Rus | 529 | mov ecx,eax |
530 | shl ecx,5 |
||
531 | cmp byte [CURRENT_TASK+ecx+0xa],9 ;if process running? |
||
532 | jz @f ;skip empty slots |
||
533 | shl ecx,3 |
||
534 | cmp [SLOT_BASE+ecx+0xB8],ebx ;compare page directory addresses |
||
535 | jnz @f |
||
536 | inc edx ;thread found |
||
164 | serge | 537 | @@: |
774 | Rus | 538 | inc eax |
539 | cmp eax,[TASK_COUNT] ;exit loop if we look through all processes |
||
540 | jle .loop |
||
164 | serge | 541 | |
542 | ;edx = number of threads |
||
543 | ;our process is zombi so it isn't counted |
||
774 | Rus | 544 | cmp edx,1 |
545 | jg .exit |
||
164 | serge | 546 | ;if there isn't threads then clear memory. |
547 | |||
774 | Rus | 548 | mov eax, [pg_dir] |
839 | serge | 549 | and eax, -4096 |
550 | add eax, OS_BASE |
||
551 | mov [tmp_task_pdir], eax |
||
552 | mov esi, eax |
||
553 | mov edi, (HEAP_BASE shr 20)/4 |
||
164 | serge | 554 | .destroy: |
774 | Rus | 555 | mov eax, [esi] |
556 | test eax, 1 |
||
557 | jz .next |
||
558 | and eax, not 0xFFF |
||
839 | serge | 559 | add eax, OS_BASE |
560 | |||
561 | stdcall destroy_page_table, eax |
||
562 | |||
563 | mov eax, [esi] |
||
774 | Rus | 564 | call free_page |
164 | serge | 565 | .next: |
774 | Rus | 566 | add esi, 4 |
567 | dec edi |
||
568 | jnz .destroy |
||
164 | serge | 569 | |
774 | Rus | 570 | mov eax, [pg_dir] |
571 | call free_page |
||
164 | serge | 572 | .exit: |
774 | Rus | 573 | dec [pg_data.pg_mutex] |
574 | ret |
||
164 | serge | 575 | endp |
576 | |||
520 | serge | 577 | align 4 |
578 | get_pid: |
||
774 | Rus | 579 | mov eax, [TASK_BASE] |
819 | serge | 580 | mov eax, [eax+TASKDATA.pid] |
774 | Rus | 581 | ret |
520 | serge | 582 | |
164 | serge | 583 | pid_to_slot: |
584 | ;Input: |
||
585 | ; eax - pid of process |
||
586 | ;Output: |
||
587 | ; eax - slot of process or 0 if process don't exists |
||
588 | ;Search process by PID. |
||
589 | push ebx |
||
590 | push ecx |
||
591 | mov ebx,[TASK_COUNT] |
||
592 | shl ebx,5 |
||
593 | mov ecx,2*32 |
||
594 | |||
595 | .loop: |
||
596 | ;ecx=offset of current process info entry |
||
597 | ;ebx=maximum permitted offset |
||
598 | cmp byte [CURRENT_TASK+ecx+0xa],9 |
||
774 | Rus | 599 | jz .endloop ;skip empty slots |
164 | serge | 600 | cmp [CURRENT_TASK+ecx+0x4],eax ;check PID |
774 | Rus | 601 | jz .pid_found |
164 | serge | 602 | .endloop: |
603 | add ecx,32 |
||
604 | cmp ecx,ebx |
||
605 | jle .loop |
||
606 | |||
607 | pop ecx |
||
608 | pop ebx |
||
609 | xor eax,eax |
||
610 | ret |
||
611 | |||
612 | .pid_found: |
||
613 | shr ecx,5 |
||
774 | Rus | 614 | mov eax,ecx ;convert offset to index of slot |
164 | serge | 615 | pop ecx |
616 | pop ebx |
||
617 | ret |
||
618 | |||
619 | check_region: |
||
620 | ;input: |
||
621 | ; ebx - start of buffer |
||
622 | ; ecx - size of buffer |
||
623 | ;result: |
||
624 | ; eax = 1 region lays in app memory |
||
625 | ; eax = 0 region don't lays in app memory |
||
626 | mov eax,[CURRENT_TASK] |
||
627 | jmp check_process_region |
||
628 | ;----------------------------------------------------------------------------- |
||
629 | check_process_region: |
||
630 | ;input: |
||
631 | ; eax - slot |
||
632 | ; ebx - start of buffer |
||
633 | ; ecx - size of buffer |
||
634 | ;result: |
||
635 | ; eax = 1 region lays in app memory |
||
636 | ; eax = 0 region don't lays in app memory |
||
637 | |||
638 | test ecx,ecx |
||
639 | jle .ok |
||
640 | shl eax,5 |
||
641 | cmp word [CURRENT_TASK+eax+0xa],0 |
||
642 | jnz .failed |
||
643 | shl eax,3 |
||
380 | serge | 644 | mov eax,[SLOT_BASE+eax+0xb8] |
164 | serge | 645 | test eax,eax |
646 | jz .failed |
||
647 | |||
648 | mov eax,1 |
||
649 | ret |
||
650 | |||
651 | |||
652 | ; call MEM_Get_Linear_Address |
||
653 | ; push ebx |
||
654 | ; push ecx |
||
655 | ; push edx |
||
656 | ; mov edx,ebx |
||
657 | ; and edx,not (4096-1) |
||
658 | ; sub ebx,edx |
||
659 | ; add ecx,ebx |
||
660 | ; mov ebx,edx |
||
661 | ; add ecx,(4096-1) |
||
662 | ; and ecx,not (4096-1) |
||
663 | ;.loop: |
||
664 | ;;eax - linear address of page directory |
||
665 | ;;ebx - current page |
||
666 | ;;ecx - current size |
||
667 | ; mov edx,ebx |
||
668 | ; shr edx,22 |
||
669 | ; mov edx,[eax+4*edx] |
||
670 | ; and edx,not (4096-1) |
||
671 | ; test edx,edx |
||
672 | ; jz .failed1 |
||
673 | ; push eax |
||
674 | ; mov eax,edx |
||
675 | ; call MEM_Get_Linear_Address |
||
676 | ; mov edx,ebx |
||
677 | ; shr edx,12 |
||
678 | ; and edx,(1024-1) |
||
679 | ; mov eax,[eax+4*edx] |
||
680 | ; and eax,not (4096-1) |
||
681 | ; test eax,eax |
||
682 | ; pop eax |
||
683 | ; jz .failed1 |
||
684 | ; add ebx,4096 |
||
685 | ; sub ecx,4096 |
||
686 | ; jg .loop |
||
687 | ; pop edx |
||
688 | ; pop ecx |
||
689 | ; pop ebx |
||
690 | .ok: |
||
691 | mov eax,1 |
||
692 | ret |
||
693 | ; |
||
694 | ;.failed1: |
||
695 | ; pop edx |
||
696 | ; pop ecx |
||
697 | ; pop ebx |
||
698 | .failed: |
||
699 | xor eax,eax |
||
700 | ret |
||
701 | |||
702 | align 4 |
||
703 | proc read_process_memory |
||
704 | ;Input: |
||
705 | ; eax - process slot |
||
706 | ; ebx - buffer address |
||
707 | ; ecx - buffer size |
||
708 | ; edx - start address in other process |
||
709 | ;Output: |
||
710 | ; eax - number of bytes read. |
||
774 | Rus | 711 | locals |
712 | slot dd ? |
||
713 | buff dd ? |
||
714 | r_count dd ? |
||
715 | offset dd ? |
||
716 | tmp_r_cnt dd ? |
||
717 | endl |
||
164 | serge | 718 | |
774 | Rus | 719 | mov [slot], eax |
720 | mov [buff], ebx |
||
721 | and [r_count], 0 |
||
722 | mov [tmp_r_cnt], ecx |
||
723 | mov [offset], edx |
||
164 | serge | 724 | |
774 | Rus | 725 | pushad |
164 | serge | 726 | .read_mem: |
774 | Rus | 727 | mov edx, [offset] |
728 | mov ebx, [tmp_r_cnt] |
||
164 | serge | 729 | |
774 | Rus | 730 | mov ecx, 0x400000 |
731 | and edx, 0x3FFFFF |
||
732 | sub ecx, edx |
||
733 | cmp ecx, ebx |
||
734 | jbe @f |
||
735 | mov ecx, ebx |
||
164 | serge | 736 | @@: |
774 | Rus | 737 | cmp ecx, 0x8000 |
738 | jna @F |
||
739 | mov ecx, 0x8000 |
||
164 | serge | 740 | @@: |
774 | Rus | 741 | mov eax, [slot] |
742 | shl eax,8 |
||
743 | mov ebx, [offset] |
||
465 | serge | 744 | ; add ebx, new_app_base |
774 | Rus | 745 | push ecx |
746 | stdcall map_memEx, [proc_mem_map],\ |
||
747 | [SLOT_BASE+eax+0xB8],\ |
||
748 | ebx, ecx |
||
749 | pop ecx |
||
164 | serge | 750 | |
774 | Rus | 751 | mov esi, [offset] |
752 | and esi, 0xfff |
||
753 | add esi, [proc_mem_map] |
||
754 | mov edi, [buff] |
||
755 | mov edx, ecx |
||
756 | rep movsb |
||
757 | add [r_count], edx |
||
164 | serge | 758 | |
774 | Rus | 759 | add [offset], edx |
760 | sub [tmp_r_cnt], edx |
||
761 | jnz .read_mem |
||
164 | serge | 762 | |
774 | Rus | 763 | popad |
764 | mov eax, [r_count] |
||
765 | ret |
||
164 | serge | 766 | endp |
767 | |||
768 | align 4 |
||
769 | proc write_process_memory |
||
770 | ;Input: |
||
771 | ; eax - process slot |
||
772 | ; ebx - buffer address |
||
773 | ; ecx - buffer size |
||
774 | ; edx - start address in other process |
||
775 | ;Output: |
||
776 | ; eax - number of bytes written |
||
777 | |||
774 | Rus | 778 | locals |
779 | slot dd ? |
||
780 | buff dd ? |
||
781 | w_count dd ? |
||
782 | offset dd ? |
||
783 | tmp_w_cnt dd ? |
||
784 | endl |
||
164 | serge | 785 | |
774 | Rus | 786 | mov [slot], eax |
787 | mov [buff], ebx |
||
788 | and [w_count], 0 |
||
789 | mov [tmp_w_cnt], ecx |
||
790 | mov [offset], edx |
||
164 | serge | 791 | |
774 | Rus | 792 | pushad |
164 | serge | 793 | .read_mem: |
774 | Rus | 794 | mov edx, [offset] |
795 | mov ebx, [tmp_w_cnt] |
||
164 | serge | 796 | |
774 | Rus | 797 | mov ecx, 0x400000 |
798 | and edx, 0x3FFFFF |
||
799 | sub ecx, edx |
||
800 | cmp ecx, ebx |
||
801 | jbe @f |
||
802 | mov ecx, ebx |
||
164 | serge | 803 | @@: |
774 | Rus | 804 | cmp ecx, 0x8000 |
805 | jna @F |
||
806 | mov ecx, 0x8000 |
||
164 | serge | 807 | @@: |
774 | Rus | 808 | mov eax, [slot] |
809 | shl eax,8 |
||
810 | mov ebx, [offset] |
||
465 | serge | 811 | ; add ebx, new_app_base |
774 | Rus | 812 | push ecx |
813 | stdcall map_memEx, [proc_mem_map],\ |
||
814 | [SLOT_BASE+eax+0xB8],\ |
||
815 | ebx, ecx |
||
816 | pop ecx |
||
164 | serge | 817 | |
774 | Rus | 818 | mov edi, [offset] |
819 | and edi, 0xfff |
||
820 | add edi, [proc_mem_map] |
||
821 | mov esi, [buff] |
||
822 | mov edx, ecx |
||
823 | rep movsb |
||
164 | serge | 824 | |
774 | Rus | 825 | add [w_count], edx |
826 | add [offset], edx |
||
827 | sub [tmp_w_cnt], edx |
||
828 | jnz .read_mem |
||
164 | serge | 829 | |
774 | Rus | 830 | popad |
831 | mov eax, [w_count] |
||
832 | ret |
||
164 | serge | 833 | endp |
834 | |||
835 | align 4 |
||
836 | proc new_sys_threads |
||
774 | Rus | 837 | locals |
838 | slot dd ? |
||
839 | app_cmdline dd ? ;0x00 |
||
840 | app_path dd ? ;0x04 |
||
841 | app_eip dd ? ;0x08 |
||
842 | app_esp dd ? ;0x0C |
||
843 | app_mem dd ? ;0x10 |
||
844 | endl |
||
164 | serge | 845 | |
774 | Rus | 846 | cmp eax,1 |
847 | jne .failed ;other subfunctions |
||
164 | serge | 848 | |
774 | Rus | 849 | xor eax,eax |
850 | mov [app_cmdline], eax |
||
851 | mov [app_path], eax |
||
852 | mov [app_eip], ebx |
||
853 | mov [app_esp], ecx |
||
164 | serge | 854 | |
774 | Rus | 855 | ;mov esi,new_process_loading |
856 | ;call sys_msg_board_str |
||
857 | DEBUGF 1,"%s",new_process_loading |
||
164 | serge | 858 | .wait_lock: |
774 | Rus | 859 | cmp [application_table_status],0 |
860 | je .get_lock |
||
861 | call change_task |
||
862 | jmp .wait_lock |
||
164 | serge | 863 | |
864 | .get_lock: |
||
774 | Rus | 865 | mov eax, 1 |
866 | xchg eax, [application_table_status] |
||
867 | cmp eax, 0 |
||
868 | jne .wait_lock |
||
164 | serge | 869 | |
774 | Rus | 870 | call set_application_table_status |
164 | serge | 871 | |
774 | Rus | 872 | call get_new_process_place |
873 | test eax, eax |
||
874 | jz .failed |
||
164 | serge | 875 | |
774 | Rus | 876 | mov [slot], eax |
164 | serge | 877 | |
774 | Rus | 878 | mov esi,[current_slot] |
879 | mov ebx,esi ;ebx=esi - pointer to extended information about current thread |
||
164 | serge | 880 | |
774 | Rus | 881 | mov edi, eax |
882 | shl edi,8 |
||
883 | add edi,SLOT_BASE |
||
884 | mov edx,edi ;edx=edi - pointer to extended infomation about new thread |
||
885 | mov ecx,256/4 |
||
886 | xor eax, eax |
||
887 | cld |
||
888 | rep stosd ;clean extended information about new thread |
||
889 | mov esi,ebx |
||
890 | mov edi,edx |
||
891 | mov ecx,11 |
||
892 | rep movsb ;copy process name |
||
164 | serge | 893 | |
774 | Rus | 894 | mov eax,[ebx+APPDATA.heap_base] |
895 | mov [edx+APPDATA.heap_base], eax |
||
164 | serge | 896 | |
774 | Rus | 897 | mov ecx,[ebx+APPDATA.heap_top] |
898 | mov [edx+APPDATA.heap_top], ecx |
||
237 | serge | 899 | |
774 | Rus | 900 | mov eax,[ebx+APPDATA.mem_size] |
901 | mov [edx+APPDATA.mem_size], eax |
||
237 | serge | 902 | |
774 | Rus | 903 | mov ecx,[ebx+APPDATA.dir_table] |
904 | mov [edx+APPDATA.dir_table],ecx ;copy page directory |
||
237 | serge | 905 | |
774 | Rus | 906 | lea eax, [app_cmdline] |
907 | stdcall set_app_params ,[slot],eax,dword 0,\ |
||
908 | dword 0,dword 0 |
||
237 | serge | 909 | |
774 | Rus | 910 | ;mov esi,new_process_running |
911 | ;call sys_msg_board_str ;output information about succefull startup |
||
912 | DEBUGF 1,"%s",new_process_running |
||
164 | serge | 913 | |
774 | Rus | 914 | mov [application_table_status],0 ;unlock application_table_status mutex |
915 | mov eax,[process_number] ;set result |
||
916 | ret |
||
164 | serge | 917 | .failed: |
774 | Rus | 918 | mov [application_table_status],0 |
919 | mov eax,-1 |
||
920 | ret |
||
164 | serge | 921 | endp |
922 | |||
276 | serge | 923 | ; param |
924 | ; ebx=mutex |
||
925 | |||
164 | serge | 926 | align 4 |
276 | serge | 927 | wait_mutex: |
774 | Rus | 928 | push eax |
929 | push ebx |
||
321 | diamond | 930 | .do_wait: |
774 | Rus | 931 | cmp dword [ebx],0 |
932 | je .get_lock |
||
933 | call change_task |
||
934 | jmp .do_wait |
||
164 | serge | 935 | .get_lock: |
774 | Rus | 936 | mov eax, 1 |
937 | xchg eax, [ebx] |
||
938 | test eax, eax |
||
939 | jnz .do_wait |
||
940 | pop ebx |
||
941 | pop eax |
||
942 | ret |
||
164 | serge | 943 | |
774 | Rus | 944 | EFL_IF equ 0x0200 |
465 | serge | 945 | EFL_IOPL1 equ 0x1000 |
946 | EFL_IOPL2 equ 0x2000 |
||
947 | EFL_IOPL3 equ 0x3000 |
||
948 | |||
949 | |||
237 | serge | 950 | align 4 |
951 | proc set_app_params stdcall,slot:dword, params:dword,\ |
||
774 | Rus | 952 | cmd_line:dword, app_path:dword, flags:dword |
164 | serge | 953 | |
774 | Rus | 954 | locals |
955 | pl0_stack dd ? |
||
956 | endl |
||
237 | serge | 957 | |
854 | serge | 958 | stdcall _alloc_pages, (RING0_STACK_SIZE+512) shr 12 |
839 | serge | 959 | add eax, OS_BASE |
774 | Rus | 960 | mov [pl0_stack], eax |
357 | serge | 961 | |
774 | Rus | 962 | lea edi, [eax+RING0_STACK_SIZE] |
357 | serge | 963 | |
774 | Rus | 964 | mov eax, [slot] |
965 | mov ebx, eax |
||
357 | serge | 966 | |
774 | Rus | 967 | shl eax, 8 |
968 | mov [eax+SLOT_BASE+APPDATA.fpu_state], edi |
||
969 | mov [eax+SLOT_BASE+APPDATA.fpu_handler], 0 |
||
970 | mov [eax+SLOT_BASE+APPDATA.sse_handler], 0 |
||
357 | serge | 971 | |
465 | serge | 972 | ;set default io permission map |
774 | Rus | 973 | mov [eax+SLOT_BASE+APPDATA.io_map],\ |
974 | (tss._io_map_0-OS_BASE+PG_MAP) |
||
975 | mov [eax+SLOT_BASE+APPDATA.io_map+4],\ |
||
976 | (tss._io_map_1-OS_BASE+PG_MAP) |
||
465 | serge | 977 | |
774 | Rus | 978 | mov esi, fpu_data |
979 | mov ecx, 512/4 |
||
980 | rep movsd |
||
237 | serge | 981 | |
774 | Rus | 982 | cmp ebx,[TASK_COUNT] |
983 | jle .noinc |
||
984 | inc dword [TASK_COUNT] ;update number of processes |
||
237 | serge | 985 | .noinc: |
774 | Rus | 986 | shl ebx,8 |
987 | lea edx, [ebx+SLOT_BASE+APP_EV_OFFSET] |
||
988 | mov [SLOT_BASE+APPDATA.fd_ev+ebx],edx |
||
989 | mov [SLOT_BASE+APPDATA.bk_ev+ebx],edx |
||
354 | serge | 990 | |
774 | Rus | 991 | add edx, APP_OBJ_OFFSET-APP_EV_OFFSET |
992 | mov [SLOT_BASE+APPDATA.fd_obj+ebx],edx |
||
993 | mov [SLOT_BASE+APPDATA.bk_obj+ebx],edx |
||
237 | serge | 994 | |
774 | Rus | 995 | mov ecx, [def_cursor] |
996 | mov [SLOT_BASE+APPDATA.cursor+ebx],ecx |
||
997 | mov eax, [pl0_stack] |
||
998 | mov [SLOT_BASE+APPDATA.pl0_stack+ebx],eax |
||
999 | add eax, RING0_STACK_SIZE |
||
1000 | mov [SLOT_BASE+APPDATA.saved_esp0+ebx], eax |
||
281 | serge | 1001 | |
854 | serge | 1002 | call _alloc_page |
839 | serge | 1003 | add eax, OS_BASE |
774 | Rus | 1004 | mov esi,[current_slot] |
1005 | mov esi,[esi+APPDATA.cur_dir] |
||
1006 | mov ecx,0x1000/4 |
||
1007 | mov edi,eax |
||
1008 | mov [ebx+SLOT_BASE+APPDATA.cur_dir],eax |
||
1009 | rep movsd |
||
521 | diamond | 1010 | |
774 | Rus | 1011 | shr ebx,3 |
840 | serge | 1012 | mov dword [CURRENT_TASK+ebx+0x10], 0 |
237 | serge | 1013 | |
1014 | .add_command_line: |
||
774 | Rus | 1015 | mov edx,[params] |
1016 | mov edx,[edx] ;app_cmdline |
||
1017 | test edx,edx |
||
1018 | jz @f ;application doesn't need parameters |
||
281 | serge | 1019 | |
774 | Rus | 1020 | mov eax, edx |
1021 | add eax, 256 |
||
1022 | jc @f |
||
281 | serge | 1023 | |
774 | Rus | 1024 | cmp eax, [SLOT_BASE+APPDATA.mem_size+ebx*8] |
1025 | ja @f |
||
281 | serge | 1026 | |
774 | Rus | 1027 | mov byte [edx], 0 ;force empty string if no cmdline given |
1028 | mov eax, [cmd_line] |
||
1029 | test eax, eax |
||
1030 | jz @f |
||
1031 | stdcall strncpy, edx, eax, 256 |
||
237 | serge | 1032 | @@: |
774 | Rus | 1033 | mov edx,[params] |
1034 | mov edx, [edx+4] ;app_path |
||
1035 | test edx,edx |
||
1036 | jz @F ;application don't need path of file |
||
1037 | mov eax, edx |
||
1038 | add eax, 1024 |
||
1039 | jc @f |
||
1040 | cmp eax, [SLOT_BASE+APPDATA.mem_size+ebx*8] |
||
1041 | ja @f |
||
1042 | stdcall strncpy, edx, [app_path], 1024 |
||
237 | serge | 1043 | @@: |
774 | Rus | 1044 | mov ebx,[slot] |
1045 | mov eax,ebx |
||
1046 | shl ebx,5 |
||
1047 | lea ecx,[draw_data+ebx] ;ecx - pointer to draw data |
||
465 | serge | 1048 | |
237 | serge | 1049 | ; set window state to 'normal' (non-minimized/maximized/rolled-up) state |
774 | Rus | 1050 | mov [ebx+window_data+WDATA.fl_wstate], WSTATE_NORMAL |
1051 | mov [ebx+window_data+WDATA.fl_redraw], 1 |
||
1052 | add ebx,CURRENT_TASK ;ebx - pointer to information about process |
||
1053 | mov [ebx+TASKDATA.wnd_number],al;set window number on screen = process slot |
||
237 | serge | 1054 | |
774 | Rus | 1055 | mov [ebx+TASKDATA.event_mask],dword 1+2+4 ;set default event flags (see 40 function) |
237 | serge | 1056 | |
774 | Rus | 1057 | inc dword [process_number] |
1058 | mov eax,[process_number] |
||
1059 | mov [ebx+4],eax ;set PID |
||
237 | serge | 1060 | |
1061 | ;set draw data to full screen |
||
1062 | |||
774 | Rus | 1063 | mov [ecx+0],dword 0 |
1064 | mov [ecx+4],dword 0 |
||
1065 | mov eax,[Screen_Max_X] |
||
1066 | mov [ecx+8],eax |
||
1067 | mov eax,[Screen_Max_Y] |
||
1068 | mov [ecx+12],eax |
||
237 | serge | 1069 | |
774 | Rus | 1070 | mov ebx, [pl0_stack] |
1071 | mov esi,[params] |
||
1072 | lea ecx, [ebx+REG_EIP] |
||
1073 | xor eax, eax |
||
237 | serge | 1074 | |
774 | Rus | 1075 | mov [ebx+REG_RET], dword irq0.return |
1076 | mov [ebx+REG_EDI], eax |
||
1077 | mov [ebx+REG_ESI], eax |
||
1078 | mov [ebx+REG_EBP], eax |
||
1079 | mov [ebx+REG_ESP], ecx ;ebx+REG_EIP |
||
1080 | mov [ebx+REG_EBX], eax |
||
1081 | mov [ebx+REG_EDX], eax |
||
1082 | mov [ebx+REG_ECX], eax |
||
1083 | mov [ebx+REG_EAX], eax |
||
237 | serge | 1084 | |
774 | Rus | 1085 | mov eax, [esi+0x08] ;app_eip |
1086 | mov [ebx+REG_EIP], eax ;app_entry |
||
1087 | mov [ebx+REG_CS], dword app_code |
||
859 | serge | 1088 | mov [ebx+REG_EFLAGS], dword EFL_IOPL3+EFL_IF |
465 | serge | 1089 | |
774 | Rus | 1090 | mov eax, [esi+0x0C] ;app_esp |
1091 | mov [ebx+REG_APP_ESP], eax ;app_stack |
||
1092 | mov [ebx+REG_SS], dword app_data |
||
237 | serge | 1093 | |
774 | Rus | 1094 | lea ecx, [ebx+REG_RET] |
1095 | mov ebx, [slot] |
||
1096 | shl ebx, 5 |
||
1097 | mov [ebx*8+SLOT_BASE+APPDATA.saved_esp], ecx |
||
237 | serge | 1098 | |
774 | Rus | 1099 | xor ecx, ecx ; process state - running |
237 | serge | 1100 | ; set if debuggee |
774 | Rus | 1101 | test byte [flags], 1 |
1102 | jz .no_debug |
||
1103 | inc ecx ; process state - suspended |
||
1104 | mov eax,[CURRENT_TASK] |
||
1105 | mov [SLOT_BASE+ebx*8+APPDATA.debugger_slot],eax |
||
237 | serge | 1106 | .no_debug: |
774 | Rus | 1107 | mov [CURRENT_TASK+ebx+TASKDATA.state], cl |
1108 | ;mov esi,new_process_running |
||
1109 | ;call sys_msg_board_str ;output information about succefull startup |
||
1110 | DEBUGF 1,"%s",new_process_running |
||
1111 | ret |
||
237 | serge | 1112 | endp |
1113 | |||
164 | serge | 1114 | include "debug.inc"256 |