Rev 5836 | Rev 6817 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
2288 | clevermous | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
||
6793 | pathoswith | 3 | ;; Copyright (C) KolibriOS team 2004-2016. All rights reserved. ;; |
4 | ;; Distributed under terms of the GNU General Public License. ;; |
||
2288 | clevermous | 5 | ;; ;; |
6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
||
7 | |||
8 | $Revision: 6793 $ |
||
9 | |||
10 | align 4 ;3A08 |
||
11 | build_interrupt_table: |
||
12 | mov edi, idts |
||
13 | mov esi, sys_int |
||
14 | mov ecx, 0x40 |
||
15 | mov eax, (10001110b shl 24) + os_code |
||
16 | @@: |
||
17 | movsw ;low word of code-entry |
||
18 | stosd ;interrupt gate type : os_code selector |
||
19 | movsw ;high word of code-entry |
||
20 | loop @b |
||
21 | movsd ;copy low dword of trap gate for int 0x40 |
||
22 | movsd ;copy high dword of trap gate for int 0x40 |
||
23 | lidt [esi] |
||
24 | ret |
||
25 | |||
26 | iglobal |
||
27 | align 4 |
||
28 | sys_int: |
||
29 | ;exception handlers addresses (for interrupt gate construction) |
||
30 | dd e0,e1,e2,e3,e4,e5,e6,except_7 ; SEE: core/fpu.inc |
||
31 | dd e8,e9,e10,e11,e12,e13,page_fault_exc,e15 |
||
32 | dd e16, e17,e18, e19 |
||
33 | times 12 dd unknown_interrupt ;int_20..int_31 |
||
34 | |||
35 | ;interrupt handlers addresses (for interrupt gate construction) |
||
36 | ; 0x20 .. 0x2F - IRQ handlers |
||
37 | dd irq0, irq_serv.irq_1, irq_serv.irq_2 |
||
38 | dd irq_serv.irq_3, irq_serv.irq_4 |
||
39 | dd irq_serv.irq_5, irq_serv.irq_6, irq_serv.irq_7 |
||
40 | dd irq_serv.irq_8, irq_serv.irq_9, irq_serv.irq_10 |
||
41 | dd irq_serv.irq_11, irq_serv.irq_12, irqD, irq_serv.irq_14, irq_serv.irq_15 |
||
42 | dd irq_serv.irq_16 |
||
43 | dd irq_serv.irq_17 |
||
44 | dd irq_serv.irq_18 |
||
45 | dd irq_serv.irq_19 |
||
46 | dd irq_serv.irq_20 |
||
47 | dd irq_serv.irq_21 |
||
48 | dd irq_serv.irq_22 |
||
49 | dd irq_serv.irq_23 |
||
50 | |||
51 | times 32 - IRQ_RESERVED dd unknown_interrupt |
||
52 | ;int_0x40 gate trap (for directly copied) |
||
53 | dw i40 and 0xFFFF, os_code, 11101111b shl 8, i40 shr 16 |
||
54 | |||
55 | idtreg: ; data for LIDT instruction (!!! must be immediately below sys_int data) |
||
56 | dw 2*($-sys_int-4)-1 |
||
57 | dd idts ;0x8000B100 |
||
3539 | clevermous | 58 | dw 0 ;просто выравнивание |
2288 | clevermous | 59 | |
60 | msg_fault_sel dd msg_exc_8,msg_exc_u,msg_exc_a,msg_exc_b |
||
61 | dd msg_exc_c,msg_exc_d,msg_exc_e |
||
62 | |||
63 | msg_exc_8 db "Double fault", 0 |
||
64 | msg_exc_u db "Undefined Exception", 0 |
||
65 | msg_exc_a db "Invalid TSS", 0 |
||
66 | msg_exc_b db "Segment not present", 0 |
||
67 | msg_exc_c db "Stack fault", 0 |
||
68 | msg_exc_d db "General protection fault", 0 |
||
69 | msg_exc_e db "Page fault", 0 |
||
70 | |||
3342 | yogev_ezra | 71 | if lang eq sp |
3344 | yogev_ezra | 72 | include 'core/sys32-sp.inc' |
3342 | yogev_ezra | 73 | else |
74 | msg_sel_ker db "kernel", 0 |
||
75 | msg_sel_app db "application", 0 |
||
3309 | esevece | 76 | end if |
2288 | clevermous | 77 | |
78 | endg |
||
79 | |||
80 | macro save_ring3_context { |
||
81 | pushad |
||
82 | } |
||
83 | macro restore_ring3_context { |
||
84 | popad |
||
85 | } |
||
86 | macro exc_wo_code [num] { |
||
87 | e#num : |
||
88 | save_ring3_context |
||
89 | mov bl, num |
||
90 | jmp exc_c |
||
91 | } exc_wo_code 0,1,2,3,4,5,6,15,16,19 |
||
92 | |||
93 | macro exc_w_code [num] { |
||
94 | e#num : |
||
95 | add esp, 4 |
||
96 | save_ring3_context |
||
97 | mov bl, num |
||
98 | jmp exc_c |
||
99 | } exc_w_code 8,9,10,11,12,13,17,18 |
||
100 | |||
101 | |||
102 | uglobal |
||
103 | pf_err_code dd ? |
||
104 | endg |
||
105 | |||
3539 | clevermous | 106 | page_fault_exc: ; дуракоусточивость: селекторы испорчены... |
107 | pop [ss:pf_err_code]; действительно до следующего #PF |
||
2288 | clevermous | 108 | save_ring3_context |
109 | mov bl, 14 |
||
110 | |||
3539 | clevermous | 111 | exc_c: ; исключения (все, кроме 7-го - #NM) |
112 | ; Фрэйм стека при исключении/прерывании из 3-го кольца + pushad (т.е., именно здесь) |
||
2288 | clevermous | 113 | reg_ss equ esp+0x30 |
114 | reg_esp3 equ esp+0x2C |
||
115 | reg_eflags equ esp+0x28 |
||
116 | reg_cs3 equ esp+0x24 |
||
117 | reg_eip equ esp+0x20 |
||
3539 | clevermous | 118 | ; это фрэйм от pushad |
2288 | clevermous | 119 | reg_eax equ esp+0x1C |
120 | reg_ecx equ esp+0x18 |
||
121 | reg_edx equ esp+0x14 |
||
122 | reg_ebx equ esp+0x10 |
||
123 | reg_esp0 equ esp+0x0C |
||
124 | reg_ebp equ esp+0x08 |
||
125 | reg_esi equ esp+0x04 |
||
126 | reg_edi equ esp+0x00 |
||
127 | |||
3539 | clevermous | 128 | mov ax, app_data ;исключение |
129 | mov ds, ax ;загрузим правильные значения |
||
130 | mov es, ax ;в регистры |
||
131 | cld ; и приводим DF к стандарту |
||
2288 | clevermous | 132 | movzx ebx, bl |
133 | ; redirect to V86 manager? (EFLAGS & 0x20000) != 0? |
||
134 | test byte[reg_eflags+2], 2 |
||
135 | jnz v86_exc_c |
||
136 | cmp bl, 14 ; #PF |
||
137 | jne @f |
||
138 | call page_fault_handler ; SEE: core/memory.inc |
||
139 | @@: |
||
140 | mov esi, [current_slot] |
||
141 | btr [esi+APPDATA.except_mask], ebx |
||
142 | jnc @f |
||
143 | mov eax, [esi+APPDATA.exc_handler] |
||
144 | test eax, eax |
||
145 | jnz IRetToUserHook |
||
146 | @@: |
||
147 | cli |
||
148 | mov eax, [esi+APPDATA.debugger_slot] |
||
149 | test eax, eax |
||
150 | jnz .debug |
||
6793 | pathoswith | 151 | ; not debuggee => say error and terminate |
152 | call show_error_parameters |
||
2288 | clevermous | 153 | sti |
154 | mov [edx + TASKDATA.state], byte 4 ; terminate |
||
3534 | clevermous | 155 | call wakeup_osloop |
3615 | clevermous | 156 | call change_task |
157 | ; If we're here, then the main OS thread has crashed before initializing IDLE thread. |
||
158 | ; Or they both have crashed. Anyway, things are hopelessly broken. |
||
159 | hlt |
||
160 | jmp $-1 |
||
2288 | clevermous | 161 | .debug: |
162 | ; we are debugged process, notify debugger and suspend ourself |
||
163 | ; eax=debugger PID |
||
164 | mov ecx, 1 ; debug_message code=other_exception |
||
165 | cmp bl, 1 ; #DB |
||
166 | jne .notify ; notify debugger and suspend ourself |
||
167 | mov ebx, dr6 ; debug_message data=DR6_image |
||
168 | xor edx, edx |
||
169 | mov dr6, edx |
||
170 | mov edx, dr7 |
||
171 | mov cl, not 8 |
||
172 | .l1: |
||
173 | shl dl, 2 |
||
174 | jc @f |
||
175 | and bl, cl |
||
176 | @@: |
||
177 | sar cl, 1 |
||
178 | jc .l1 |
||
179 | mov cl, 3 ; debug_message code=debug_exception |
||
180 | .notify: |
||
181 | push ebx ; debug_message data |
||
182 | mov ebx, [TASK_BASE] |
||
183 | push [ebx+TASKDATA.pid] ; PID |
||
184 | push ecx ; debug_message code ((here: ecx==1/3)) |
||
185 | mov cl, 12 ; debug_message size |
||
186 | call debugger_notify ;; only ONE using, inline ??? SEE: core/debug.inc |
||
187 | add esp, 12 |
||
188 | mov edx, [TASK_BASE] |
||
189 | mov byte [edx+TASKDATA.state], 1 ; suspended |
||
190 | call change_task ; SEE: core/shed.inc |
||
191 | restore_ring3_context |
||
192 | iretd |
||
193 | |||
194 | IRetToUserHook: |
||
195 | xchg eax, [reg_eip] |
||
196 | sub dword[reg_esp3], 8 |
||
197 | mov edi, [reg_esp3] |
||
198 | stosd |
||
199 | mov [edi], ebx |
||
200 | restore_ring3_context |
||
201 | ; simply return control to interrupted process |
||
202 | unknown_interrupt: |
||
203 | iretd |
||
204 | |||
205 | ;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
||
206 | ; bl - error vector |
||
207 | show_error_parameters: |
||
208 | cmp bl, 0x06 |
||
209 | jnz .no_ud |
||
210 | push ebx |
||
211 | mov ebx, ud_user_message |
||
212 | mov ebp, notifyapp |
||
213 | call fs_execute_from_sysdir_param |
||
214 | pop ebx |
||
215 | .no_ud: |
||
216 | mov edx, [TASK_BASE];not scratched below |
||
3309 | esevece | 217 | if lang eq sp |
218 | DEBUGF 1, "K : Proceso - terminado forzado PID: %x [%s]\n", [edx+TASKDATA.pid], [current_slot] |
||
219 | else |
||
3294 | clevermous | 220 | DEBUGF 1, "K : Process - forced terminate PID: %x [%s]\n", [edx+TASKDATA.pid], [current_slot] |
3309 | esevece | 221 | end if |
2288 | clevermous | 222 | cmp bl, 0x08 |
223 | jb .l0 |
||
224 | cmp bl, 0x0e |
||
225 | jbe .l1 |
||
226 | .l0: |
||
227 | mov bl, 0x09 |
||
228 | .l1: |
||
229 | mov eax, [msg_fault_sel+ebx*4 - 0x08*4] |
||
230 | DEBUGF 1, "K : %s\n", eax |
||
231 | mov eax, [reg_cs3+4] |
||
232 | mov edi, msg_sel_app |
||
233 | mov ebx, [reg_esp3+4] |
||
234 | cmp eax, app_code |
||
235 | je @f |
||
236 | mov edi, msg_sel_ker |
||
237 | mov ebx, [reg_esp0+4] |
||
238 | @@: |
||
239 | DEBUGF 1, "K : EAX : %x EBX : %x ECX : %x\n", [reg_eax+4], [reg_ebx+4], [reg_ecx+4] |
||
240 | DEBUGF 1, "K : EDX : %x ESI : %x EDI : %x\n", [reg_edx+4], [reg_esi+4], [reg_edi+4] |
||
241 | DEBUGF 1, "K : EBP : %x EIP : %x ESP : %x\n", [reg_ebp+4], [reg_eip+4], ebx |
||
242 | DEBUGF 1, "K : Flags : %x CS : %x (%s)\n", [reg_eflags+4], eax, edi |
||
3911 | mario79 | 243 | |
3909 | mario79 | 244 | DEBUGF 1, "K : Stack dump:\n" |
3911 | mario79 | 245 | push eax ebx ecx edx |
246 | call .check_ESP |
||
247 | test eax, eax |
||
248 | jnz .error_ESP |
||
249 | DEBUGF 1, "K : [ESP+00]: %x",[ebx] |
||
250 | add ebx, 4 |
||
251 | call .check_ESP |
||
252 | test eax, eax |
||
253 | jnz .error_ESP |
||
254 | DEBUGF 1, " [ESP+04]: %x",[ebx] |
||
255 | add ebx, 4 |
||
256 | call .check_ESP |
||
257 | test eax, eax |
||
258 | jnz .error_ESP |
||
5356 | serge | 259 | DEBUGF 1, " [ESP+08]: %x\n",[ebx] |
3911 | mario79 | 260 | add ebx, 4 |
261 | call .check_ESP |
||
262 | test eax, eax |
||
263 | jnz .error_ESP |
||
264 | DEBUGF 1, "K : [ESP+12]: %x",[ebx] |
||
265 | add ebx, 4 |
||
266 | call .check_ESP |
||
267 | test eax, eax |
||
268 | jnz .error_ESP |
||
269 | DEBUGF 1, " [ESP+16]: %x",[ebx] |
||
270 | add ebx, 4 |
||
271 | call .check_ESP |
||
272 | test eax, eax |
||
273 | jnz .error_ESP |
||
274 | DEBUGF 1, " [ESP+20]: %x\n",[ebx] |
||
275 | add ebx, 4 |
||
276 | call .check_ESP |
||
277 | test eax, eax |
||
278 | jnz .error_ESP |
||
279 | DEBUGF 1, "K : [ESP+24]: %x",[ebx] |
||
280 | add ebx, 4 |
||
281 | call .check_ESP |
||
282 | test eax, eax |
||
283 | jnz .error_ESP |
||
284 | DEBUGF 1, " [ESP+28]: %x",[ebx] |
||
285 | add ebx, 4 |
||
286 | call .check_ESP |
||
287 | test eax, eax |
||
288 | jnz .error_ESP |
||
5356 | serge | 289 | DEBUGF 1, " [ESP+32]: %x\n",[ebx] |
3911 | mario79 | 290 | pop edx ecx ebx eax |
2288 | clevermous | 291 | ret |
3911 | mario79 | 292 | .error_ESP: |
293 | pop edx ecx ebx eax |
||
294 | DEBUGF 1, "\n" |
||
295 | DEBUGF 1, "K : Unexpected end of the stack\n" |
||
296 | ret |
||
297 | ;-------------------------------------- |
||
298 | .check_ESP: |
||
299 | push ebx |
||
300 | shr ebx, 12 |
||
301 | mov ecx, ebx |
||
302 | shr ecx, 10 |
||
303 | mov edx, [master_tab+ecx*4] |
||
5356 | serge | 304 | test edx, PG_READ |
3911 | mario79 | 305 | jz .fail ;page table is not created |
306 | ;incorrect address in the program |
||
307 | |||
308 | mov eax, [page_tabs+ebx*4] |
||
309 | test eax, 2 |
||
310 | jz .fail ;address not reserved for use. error |
||
5356 | serge | 311 | |
312 | pop ebx |
||
3911 | mario79 | 313 | xor eax, eax |
5356 | serge | 314 | ret |
315 | |||
3911 | mario79 | 316 | .fail: |
317 | pop ebx |
||
318 | xor eax, eax |
||
319 | dec eax |
||
320 | ret |
||
2288 | clevermous | 321 | ;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
322 | |||
323 | restore reg_ss |
||
324 | restore reg_esp3 |
||
325 | restore reg_eflags |
||
326 | restore reg_cs |
||
327 | restore reg_eip |
||
328 | restore reg_eax |
||
329 | restore reg_ecx |
||
330 | restore reg_edx |
||
331 | restore reg_ebx |
||
332 | restore reg_esp0 |
||
333 | restore reg_ebp |
||
334 | restore reg_esi |
||
335 | restore reg_edi |
||
336 | |||
337 | |||
338 | align 4 |
||
3534 | clevermous | 339 | lock_application_table: |
340 | push eax ecx edx |
||
341 | mov ecx, application_table_mutex |
||
342 | call mutex_lock |
||
2288 | clevermous | 343 | |
344 | mov eax, [CURRENT_TASK] |
||
345 | shl eax, 5 |
||
346 | add eax, CURRENT_TASK+TASKDATA.pid |
||
347 | mov eax, [eax] |
||
348 | |||
3534 | clevermous | 349 | mov [application_table_owner], eax |
2288 | clevermous | 350 | |
3534 | clevermous | 351 | pop edx ecx eax |
2288 | clevermous | 352 | |
353 | ret |
||
354 | |||
355 | align 4 |
||
3534 | clevermous | 356 | unlock_application_table: |
357 | push eax ecx edx |
||
2288 | clevermous | 358 | |
3534 | clevermous | 359 | mov [application_table_owner], 0 |
360 | mov ecx, application_table_mutex |
||
361 | call mutex_unlock |
||
2288 | clevermous | 362 | |
3534 | clevermous | 363 | pop edx ecx eax |
2288 | clevermous | 364 | |
365 | ret |
||
366 | |||
3539 | clevermous | 367 | ; * eax = 64 - номер функции |
368 | ; * ebx = 1 - единственная подфункция |
||
369 | ; * ecx = новый размер памяти |
||
370 | ;Возвращаемое значение: |
||
371 | ; * eax = 0 - успешно |
||
372 | ; * eax = 1 - недостаточно памяти |
||
2288 | clevermous | 373 | |
374 | align 4 |
||
375 | sys_resize_app_memory: |
||
376 | ; ebx = 1 - resize |
||
377 | ; ecx = new amount of memory |
||
378 | |||
379 | ; cmp eax,1 |
||
380 | dec ebx |
||
381 | jnz .no_application_mem_resize |
||
4313 | mario79 | 382 | |
383 | mov eax, [pg_data.pages_free] |
||
384 | shl eax, 12 |
||
385 | cmp eax, ecx |
||
386 | jae @f |
||
387 | |||
388 | xor eax, eax |
||
389 | inc eax |
||
390 | jmp .store_result |
||
391 | @@: |
||
2288 | clevermous | 392 | stdcall new_mem_resize, ecx |
4313 | mario79 | 393 | .store_result: |
2288 | clevermous | 394 | mov [esp+32], eax |
395 | .no_application_mem_resize: |
||
396 | ret |
||
397 | |||
398 | iglobal |
||
399 | ; process_terminating db 'K : Process - terminating',13,10,0 |
||
400 | ; process_terminated db 'K : Process - done',13,10,0 |
||
401 | msg_obj_destroy db 'K : destroy app object',13,10,0 |
||
402 | endg |
||
403 | |||
404 | ; param |
||
405 | ; esi= slot |
||
406 | |||
407 | align 4 |
||
408 | terminate: ; terminate application |
||
5130 | serge | 409 | destroy_thread: |
2288 | clevermous | 410 | |
5130 | serge | 411 | .slot equ esp+4 ;locals |
412 | .process equ esp ;ptr to parent process |
||
2288 | clevermous | 413 | |
5130 | serge | 414 | |
2288 | clevermous | 415 | push esi ;save .slot |
416 | |||
417 | shl esi, 8 |
||
5130 | serge | 418 | mov edx, [SLOT_BASE+esi+APPDATA.process] |
419 | test edx, edx |
||
420 | jnz @F |
||
2288 | clevermous | 421 | pop esi |
422 | shl esi, 5 |
||
423 | mov [CURRENT_TASK+esi+TASKDATA.state], 9 |
||
424 | ret |
||
425 | @@: |
||
5130 | serge | 426 | push edx ;save .process |
3534 | clevermous | 427 | lea edx, [SLOT_BASE+esi] |
428 | call scheduler_remove_thread |
||
429 | call lock_application_table |
||
2288 | clevermous | 430 | |
431 | ; if the process is in V86 mode... |
||
432 | mov eax, [.slot] |
||
433 | shl eax, 8 |
||
434 | mov esi, [eax+SLOT_BASE+APPDATA.pl0_stack] |
||
435 | add esi, RING0_STACK_SIZE |
||
436 | cmp [eax+SLOT_BASE+APPDATA.saved_esp0], esi |
||
437 | jz .nov86 |
||
438 | ; ...it has page directory for V86 mode |
||
439 | mov esi, [eax+SLOT_BASE+APPDATA.saved_esp0] |
||
440 | mov ecx, [esi+4] |
||
5130 | serge | 441 | mov [eax+SLOT_BASE+APPDATA.process], ecx |
2288 | clevermous | 442 | ; ...and I/O permission map for V86 mode |
443 | mov ecx, [esi+12] |
||
444 | mov [eax+SLOT_BASE+APPDATA.io_map], ecx |
||
445 | mov ecx, [esi+8] |
||
446 | mov [eax+SLOT_BASE+APPDATA.io_map+4], ecx |
||
447 | .nov86: |
||
5130 | serge | 448 | ;destroy per-thread kernel objects |
2288 | clevermous | 449 | mov esi, [.slot] |
450 | shl esi, 8 |
||
451 | add esi, SLOT_BASE+APP_OBJ_OFFSET |
||
452 | @@: |
||
453 | mov eax, [esi+APPOBJ.fd] |
||
454 | test eax, eax |
||
455 | jz @F |
||
456 | |||
457 | cmp eax, esi |
||
458 | je @F |
||
459 | |||
460 | push esi |
||
461 | call [eax+APPOBJ.destroy] |
||
462 | DEBUGF 1,"%s",msg_obj_destroy |
||
463 | pop esi |
||
464 | jmp @B |
||
465 | @@: |
||
466 | mov esi, [.slot] |
||
3534 | clevermous | 467 | cmp [fpu_owner], esi ; if user fpu last -> fpu user = 2 |
2288 | clevermous | 468 | jne @F |
469 | |||
3534 | clevermous | 470 | mov [fpu_owner], 2 |
471 | mov eax, [256*2+SLOT_BASE+APPDATA.fpu_state] |
||
2288 | clevermous | 472 | clts |
473 | bt [cpu_caps], CAPS_SSE |
||
474 | jnc .no_SSE |
||
475 | fxrstor [eax] |
||
476 | jmp @F |
||
477 | .no_SSE: |
||
478 | fnclex |
||
479 | frstor [eax] |
||
480 | @@: |
||
481 | |||
482 | mov [KEY_COUNT], byte 0 ; empty keyboard buffer |
||
483 | mov [BTN_COUNT], byte 0 ; empty button buffer |
||
484 | |||
485 | |||
486 | ; remove defined hotkeys |
||
487 | mov eax, hotkey_list |
||
488 | .loop: |
||
489 | cmp [eax+8], esi |
||
490 | jnz .cont |
||
491 | mov ecx, [eax] |
||
492 | jecxz @f |
||
493 | push dword [eax+12] |
||
494 | pop dword [ecx+12] |
||
495 | @@: |
||
496 | mov ecx, [eax+12] |
||
497 | push dword [eax] |
||
498 | pop dword [ecx] |
||
499 | xor ecx, ecx |
||
500 | mov [eax], ecx |
||
501 | mov [eax+4], ecx |
||
502 | mov [eax+8], ecx |
||
503 | mov [eax+12], ecx |
||
504 | .cont: |
||
505 | add eax, 16 |
||
506 | cmp eax, hotkey_list+256*16 |
||
507 | jb .loop |
||
2709 | mario79 | 508 | ; get process PID |
509 | mov eax, esi |
||
510 | shl eax, 5 |
||
511 | mov eax, [eax+CURRENT_TASK+TASKDATA.pid] |
||
512 | ; compare current lock input with process PID |
||
513 | cmp eax, [PID_lock_input] |
||
514 | jne @f |
||
515 | |||
516 | xor eax, eax |
||
517 | mov [PID_lock_input], eax |
||
518 | @@: |
||
2288 | clevermous | 519 | ; remove hotkeys in buffer |
520 | mov eax, hotkey_buffer |
||
521 | .loop2: |
||
522 | cmp [eax], esi |
||
523 | jnz .cont2 |
||
524 | and dword [eax+4], 0 |
||
525 | and dword [eax], 0 |
||
526 | .cont2: |
||
527 | add eax, 8 |
||
528 | cmp eax, hotkey_buffer+120*8 |
||
529 | jb .loop2 |
||
530 | |||
531 | mov ecx, esi ; remove buttons |
||
532 | bnewba2: |
||
533 | mov edi, [BTN_ADDR] |
||
534 | mov eax, edi |
||
535 | cld |
||
536 | movzx ebx, word [edi] |
||
537 | inc bx |
||
538 | bnewba: |
||
539 | dec bx |
||
540 | jz bnmba |
||
541 | add eax, 0x10 |
||
542 | cmp cx, [eax] |
||
543 | jnz bnewba |
||
544 | pusha |
||
545 | mov ecx, ebx |
||
546 | inc ecx |
||
547 | shl ecx, 4 |
||
548 | mov ebx, eax |
||
549 | add eax, 0x10 |
||
550 | call memmove |
||
551 | dec dword [edi] |
||
552 | popa |
||
553 | jmp bnewba2 |
||
554 | bnmba: |
||
555 | |||
556 | pusha ; save window coordinates for window restoring |
||
557 | cld |
||
558 | shl esi, 5 |
||
559 | add esi, window_data |
||
560 | mov eax, [esi+WDATA.box.left] |
||
561 | mov [draw_limits.left], eax |
||
562 | add eax, [esi+WDATA.box.width] |
||
563 | mov [draw_limits.right], eax |
||
564 | mov eax, [esi+WDATA.box.top] |
||
565 | mov [draw_limits.top], eax |
||
566 | add eax, [esi+WDATA.box.height] |
||
567 | mov [draw_limits.bottom], eax |
||
568 | |||
569 | xor eax, eax |
||
570 | mov [esi+WDATA.box.left], eax |
||
571 | mov [esi+WDATA.box.width], eax |
||
572 | mov [esi+WDATA.box.top], eax |
||
573 | mov [esi+WDATA.box.height], eax |
||
574 | mov [esi+WDATA.cl_workarea], eax |
||
575 | mov [esi+WDATA.cl_titlebar], eax |
||
576 | mov [esi+WDATA.cl_frames], eax |
||
5836 | GerdtR | 577 | mov dword [esi+WDATA.z_modif], eax; clear all flags: z_modif, wstate, redraw, wdrawn |
2288 | clevermous | 578 | lea edi, [esi-window_data+draw_data] |
579 | mov ecx, 32/4 |
||
580 | rep stosd |
||
581 | popa |
||
582 | |||
583 | ; debuggee test |
||
584 | pushad |
||
585 | mov edi, esi |
||
586 | shl edi, 5 |
||
587 | mov eax, [SLOT_BASE+edi*8+APPDATA.debugger_slot] |
||
588 | test eax, eax |
||
589 | jz .nodebug |
||
3598 | clevermous | 590 | movi ecx, 8 |
2288 | clevermous | 591 | push dword [CURRENT_TASK+edi+TASKDATA.pid]; PID |
592 | push 2 |
||
593 | call debugger_notify |
||
594 | pop ecx |
||
595 | pop ecx |
||
596 | .nodebug: |
||
597 | popad |
||
598 | |||
599 | mov ebx, [.slot] |
||
600 | shl ebx, 8 |
||
601 | push ebx |
||
602 | mov ebx, [SLOT_BASE+ebx+APPDATA.pl0_stack] |
||
603 | |||
604 | stdcall kernel_free, ebx |
||
605 | |||
606 | pop ebx |
||
607 | mov ebx, [SLOT_BASE+ebx+APPDATA.cur_dir] |
||
608 | stdcall kernel_free, ebx |
||
609 | |||
610 | mov edi, [.slot] |
||
611 | shl edi, 8 |
||
612 | add edi, SLOT_BASE |
||
613 | |||
614 | mov eax, [edi+APPDATA.io_map] |
||
615 | cmp eax, [SLOT_BASE+256+APPDATA.io_map] |
||
616 | je @F |
||
617 | call free_page |
||
618 | @@: |
||
619 | mov eax, [edi+APPDATA.io_map+4] |
||
620 | cmp eax, [SLOT_BASE+256+APPDATA.io_map+4] |
||
621 | je @F |
||
622 | call free_page |
||
623 | @@: |
||
5130 | serge | 624 | lea ebx, [edi+APPDATA.list] |
625 | list_del ebx ;destroys edx, ecx |
||
626 | |||
2288 | clevermous | 627 | mov eax, 0x20202020 |
628 | stosd |
||
629 | stosd |
||
630 | stosd |
||
631 | mov ecx, 244/4 |
||
632 | xor eax, eax |
||
633 | rep stosd |
||
634 | |||
635 | ; activate window |
||
636 | movzx eax, word [WIN_STACK + esi*2] |
||
637 | cmp eax, [TASK_COUNT] |
||
638 | jne .dont_activate |
||
639 | pushad |
||
640 | .check_next_window: |
||
641 | dec eax |
||
642 | cmp eax, 1 |
||
643 | jbe .nothing_to_activate |
||
644 | lea esi, [WIN_POS+eax*2] |
||
645 | movzx edi, word [esi] ; edi = process |
||
646 | shl edi, 5 |
||
647 | cmp [CURRENT_TASK + edi + TASKDATA.state], byte 9 ; skip dead slots |
||
648 | je .check_next_window |
||
649 | add edi, window_data |
||
650 | ; \begin{diamond}[19.09.2006] |
||
651 | ; skip minimized windows |
||
652 | test [edi + WDATA.fl_wstate], WSTATE_MINIMIZED |
||
653 | jnz .check_next_window |
||
654 | ; \end{diamond} |
||
655 | call waredraw |
||
656 | .nothing_to_activate: |
||
657 | popad |
||
658 | .dont_activate: |
||
659 | |||
660 | push esi ; remove hd1 & cd & flp reservation |
||
661 | shl esi, 5 |
||
662 | mov esi, [esi+CURRENT_TASK+TASKDATA.pid] |
||
663 | cmp [cd_status], esi |
||
664 | jnz @f |
||
665 | call free_cd_channel |
||
666 | and [cd_status], 0 |
||
667 | @@: |
||
668 | pop esi |
||
669 | cmp [bgrlockpid], esi |
||
670 | jnz @f |
||
671 | and [bgrlockpid], 0 |
||
672 | and [bgrlock], 0 |
||
673 | @@: |
||
674 | |||
675 | pusha ; remove all port reservations |
||
676 | mov edx, esi |
||
677 | shl edx, 5 |
||
678 | add edx, CURRENT_TASK |
||
679 | mov edx, [edx+TASKDATA.pid] |
||
680 | |||
681 | rmpr0: |
||
682 | |||
683 | mov esi, [RESERVED_PORTS] |
||
684 | |||
685 | test esi, esi |
||
686 | jz rmpr9 |
||
687 | |||
688 | rmpr3: |
||
689 | |||
690 | mov edi, esi |
||
691 | shl edi, 4 |
||
692 | add edi, RESERVED_PORTS |
||
693 | |||
694 | cmp edx, [edi] |
||
695 | je rmpr4 |
||
696 | |||
697 | dec esi |
||
698 | jnz rmpr3 |
||
699 | |||
700 | jmp rmpr9 |
||
701 | |||
702 | rmpr4: |
||
703 | |||
704 | mov ecx, 256 |
||
705 | sub ecx, esi |
||
706 | shl ecx, 4 |
||
707 | |||
708 | mov esi, edi |
||
709 | add esi, 16 |
||
710 | cld |
||
711 | rep movsb |
||
712 | |||
713 | dec dword [RESERVED_PORTS] |
||
714 | |||
715 | jmp rmpr0 |
||
716 | |||
717 | rmpr9: |
||
718 | |||
719 | popa |
||
720 | mov edi, esi ; do not run this process slot |
||
721 | shl edi, 5 |
||
722 | mov [edi+CURRENT_TASK + TASKDATA.state], byte 9 |
||
723 | ; debugger test - terminate all debuggees |
||
724 | mov eax, 2 |
||
725 | mov ecx, SLOT_BASE+2*0x100+APPDATA.debugger_slot |
||
726 | .xd0: |
||
727 | cmp eax, [TASK_COUNT] |
||
728 | ja .xd1 |
||
729 | cmp dword [ecx], esi |
||
730 | jnz @f |
||
731 | and dword [ecx], 0 |
||
732 | pushad |
||
733 | xchg eax, ecx |
||
734 | mov ebx, 2 |
||
735 | call sys_system |
||
736 | popad |
||
737 | @@: |
||
738 | inc eax |
||
739 | add ecx, 0x100 |
||
740 | jmp .xd0 |
||
741 | .xd1: |
||
5130 | serge | 742 | ;release slot |
743 | |||
744 | bts [thr_slot_map], esi |
||
745 | |||
746 | mov ecx, [.process] |
||
747 | lea eax, [ecx+PROC.thr_list] |
||
748 | cmp eax, [eax+LHEAD.next] |
||
749 | jne @F |
||
750 | |||
751 | call destroy_process.internal |
||
752 | @@: |
||
2288 | clevermous | 753 | sti ; .. and life goes on |
754 | |||
755 | mov eax, [draw_limits.left] |
||
756 | mov ebx, [draw_limits.top] |
||
757 | mov ecx, [draw_limits.right] |
||
758 | mov edx, [draw_limits.bottom] |
||
759 | call calculatescreen |
||
760 | xor eax, eax |
||
761 | xor esi, esi |
||
762 | call redrawscreen |
||
763 | |||
3534 | clevermous | 764 | call unlock_application_table |
2288 | clevermous | 765 | ;mov esi,process_terminated |
766 | ;call sys_msg_board_str |
||
5130 | serge | 767 | add esp, 8 |
2288 | clevermous | 768 | ret |
769 | restore .slot |
||
5130 | serge | 770 | restore .process |
2288 | clevermous | 771 | |
3296 | clevermous | 772 | ; Three following procedures are used to guarantee that |
773 | ; some part of kernel code will not be terminated from outside |
||
774 | ; while it is running. |
||
775 | ; Note: they do not protect a thread from terminating due to errors inside |
||
776 | ; the thread; accessing a nonexisting memory would still terminate it. |
||
777 | |||
778 | ; First two procedures must be used in pair by thread-to-be-protected |
||
779 | ; to signal the beginning and the end of an important part. |
||
780 | ; It is OK to have nested areas. |
||
781 | |||
782 | ; The last procedure must be used by outside wanna-be-terminators; |
||
783 | ; if it is safe to terminate the given thread immediately, it returns eax=1; |
||
784 | ; otherwise, it returns eax=0 and notifies the target thread that it should |
||
785 | ; terminate itself when leaving a critical area (the last critical area if |
||
786 | ; they are nested). |
||
787 | |||
788 | ; Implementation. Those procedures use one dword in APPDATA for the thread, |
||
789 | ; APPDATA.terminate_protection. |
||
790 | ; * The upper bit is 1 during normal operations and 0 when terminate is requested. |
||
791 | ; * Other bits form a number = depth of critical regions, |
||
792 | ; plus 1 if the upper bit is 1. |
||
793 | ; * When this dword goes to zero, the thread should be destructed, |
||
794 | ; and the procedure in which it happened becomes responsible for destruction. |
||
795 | |||
796 | ; Enter critical area. Called by thread which wants to be protected. |
||
797 | proc protect_from_terminate |
||
798 | mov edx, [current_slot] |
||
799 | ; Atomically increment depth of critical areas and get the old value. |
||
800 | mov eax, 1 |
||
801 | lock xadd [edx+APPDATA.terminate_protection], eax |
||
802 | ; If the old value was zero, somebody has started to terminate us, |
||
803 | ; so we are destructing and cannot do anything protected. |
||
804 | ; Otherwise, return to the caller. |
||
805 | test eax, eax |
||
806 | jz @f |
||
807 | ret |
||
808 | @@: |
||
809 | ; Wait for somebody to finish us. |
||
810 | call change_task |
||
811 | jmp @b |
||
812 | endp |
||
813 | |||
814 | ; Leave critical area. Called by thread which wants to be protected. |
||
815 | proc unprotect_from_terminate |
||
816 | mov edx, [current_slot] |
||
817 | ; Atomically decrement depth of critical areas. |
||
818 | lock dec [edx+APPDATA.terminate_protection] |
||
819 | ; If the result of decrement is zero, somebody has requested termination, |
||
820 | ; but at that moment we were inside a critical area; terminate now. |
||
821 | jz sys_end |
||
822 | ; Otherwise, return to the caller. |
||
823 | ret |
||
824 | endp |
||
825 | |||
826 | ; Request termination of thread identified by edx = SLOT_BASE + slot*256. |
||
827 | ; Called by anyone. |
||
828 | proc request_terminate |
||
829 | xor eax, eax ; set return value |
||
830 | ; Atomically clear the upper bit. If it was already zero, then |
||
831 | ; somebody has requested termination before us, so just exit. |
||
832 | lock btr [edx+APPDATA.terminate_protection], 31 |
||
833 | jnc .unsafe |
||
834 | ; Atomically decrement depth of critical areas. |
||
835 | lock dec [edx+APPDATA.terminate_protection] |
||
836 | ; If the result of decrement is nonzero, the target thread is inside a |
||
837 | ; critical area; leave termination to leaving that area. |
||
838 | jnz .unsafe |
||
839 | ; Otherwise, it is safe to kill the target now and the caller is responsible |
||
840 | ; for this. Return eax=1. |
||
841 | inc eax |
||
842 | .unsafe: |
||
843 | ret |
||
844 | endp |
||
845 |