WebSVN – Kolibri OS – Blame – /kernel/trunk/core/taskman.inc

Rev	Author	Line No.	Line
357	serge	1	GREEDY_KERNEL equ 0
164	serge	2
170	serge	3
164	serge	4	struc APP_HEADER_00
		5	{ .banner dq ?
		6	.version dd ? ;+8
		7	.start dd ? ;+12
		8	.i_end dd ? ;+16
		9	.mem_size dd ? ;+20
		10	.i_param dd ? ;+24
		11	}
		12
		13	struc APP_HEADER_01
		14	{ .banner dq ?
		15	.version dd ? ;+8
		16	.start dd ? ;+12
		17	.i_end dd ? ;+16
		18	.mem_size dd ? ;+20
		19	.stack_top dd ? ;+24
		20	.i_param dd ? ;+28
		21	.i_icon dd ? ;+32
		22	}
		23
237	serge	24	struc TSS
		25	{
		26	._back rw 2
		27	._esp0 rd 1
		28	._ss0 rw 2
		29	._esp1 rd 1
		30	._ss1 rw 2
		31	._esp2 rd 1
		32	._ss2 rw 2
		33	._cr3 rd 1
		34	._eip rd 1
		35	._eflags rd 1
		36	._eax rd 1
		37	._ecx rd 1
		38	._edx rd 1
		39	._ebx rd 1
		40	._esp rd 1
		41	._ebp rd 1
		42	._esi rd 1
		43	._edi rd 1
		44	._es rw 2
		45	._cs rw 2
		46	._ss rw 2
		47	._ds rw 2
		48	._fs rw 2
		49	._gs rw 2
		50	._ldt rw 2
		51	._trap rw 1
		52	._io rw 1
		53	}
		54
		55	virtual at 0
		56	TSS TSS
		57	end virtual
		58
		59	struc APP_PARAMS
		60	{ .app_cmdline ;0x00
		61	.app_path ;0x04
		62	.app_eip ;0x08
		63	.app_esp ;0x0C
		64	.app_mem ;0x10
		65	}
		66
		67	macro _clear_ op
		68	{ mov ecx, op/4
		69	xor eax, eax
		70	cld
		71	rep stosd
		72	}
		73
363	serge	74
164	serge	75	align 4
363	serge	76	proc fs_execute
		77
		78	;fn_read:dword, file_size:dword, cluster:dword
		79
		80	; ebx - cmdline
		81	; edx - flags
		82	; ebp - full filename
		83	; [esp+4] = procedure DoRead, [esp+8] = filesize & [esp+12]... - arguments for it
		84
237	serge	85	locals
363	serge	86	cmdline rd 64 ;256/4
		87	filename rd 256 ;1024/4
		88	flags dd ?
		89
237	serge	90	save_cr3 dd ?
		91	slot dd ?
		92	slot_base dd ?
		93	file_base dd ?
		94	file_size dd ?
363	serge	95	;app header data
		96	hdr_cmdline dd ? ;0x00
		97	hdr_path dd ? ;0x04
		98	hdr_eip dd ? ;0x08
		99	hdr_esp dd ? ;0x0C
		100	hdr_mem dd ? ;0x10
		101	hdr_i_end dd ? ;0x14
237	serge	102	endl
164	serge	103
363	serge	104	pushad
		105
		106	mov [cmdline], ebx
		107	mov [flags], edx
		108
		109	; [ebp] pointer to filename
		110
		111	lea eax, [filename]
		112	mov dword [eax+1020],0 ;force terminate
		113	;string
		114	stdcall k_strncpy, eax, [ebp], 1023
		115
		116	lea eax, [cmdline]
		117	mov dword [eax+252], 0
		118	stdcall k_strncpy, eax, [cmdline], 255
		119
		120	lea eax, [filename]
		121	stdcall load_file, eax
237	serge	122	mov ecx, -ERROR_FILE_NOT_FOUND
		123	test eax, eax
247	serge	124	jz .err_file
237	serge	125
		126	mov [file_base], eax
		127	mov [file_size], ebx
		128
363	serge	129	lea ebx, [hdr_cmdline]
237	serge	130	call test_app_header
		131	mov ecx, -0x1F
		132	test eax, eax
247	serge	133	jz .err_hdr
237	serge	134
		135	mov esi, new_process_loading
		136	call sys_msg_board_str ; write message to message board
		137
		138	.wait_lock:
		139	cmp [application_table_status],0
		140	je .get_lock
		141	call change_task
		142	jmp .wait_lock
		143
		144	.get_lock:
		145	mov eax, 1
		146	xchg eax, [application_table_status]
		147	cmp eax, 0
		148	jne .wait_lock
		149
363	serge	150	; pushfd
		151	; cli
269	serge	152
237	serge	153	call set_application_table_status
		154
		155	call get_new_process_place
		156	test eax, eax
		157	mov ecx, -0x20 ; too many processes
269	serge	158	jz .err
237	serge	159
		160	mov [slot], eax
		161	shl eax, 8
380	serge	162	add eax, SLOT_BASE
237	serge	163	mov [slot_base], eax
		164	mov edi, eax
		165	_clear_ 256 ;clean extended information about process
		166
		167	; write application name
363	serge	168	lea edi, [filename]
237	serge	169	mov al, '/'
		170	call k_strrchr ; now eax points to name without path
		171
		172	lea esi, [eax+1]
		173	test eax, eax
		174	jnz @F
363	serge	175	lea esi, [filename]
237	serge	176	@@:
		177	mov ecx, 8 ; 8 chars for name
		178	mov edi, [slot_base]
		179	.copy_process_name_loop:
		180	lodsb
		181	cmp al, '.'
		182	jz .copy_process_name_done
		183	test al, al
		184	jz .copy_process_name_done
		185	stosb
		186	loop .copy_process_name_loop
		187	.copy_process_name_done:
		188
		189	mov ebx, cr3
		190	mov [save_cr3], ebx
269	serge	191
363	serge	192	stdcall create_app_space,[hdr_mem],[file_base],[file_size]
364	diamond	193	mov ecx, -30 ; no memory
237	serge	194	test eax, eax
		195	jz .failed
		196
		197	mov ebx,[slot_base]
		198	mov [ebx+APPDATA.dir_table],eax
363	serge	199	mov eax,[hdr_mem]
237	serge	200	mov [ebx+APPDATA.mem_size],eax
		201
357	serge	202	if GREEDY_KERNEL
		203	else
363	serge	204	mov ecx, [hdr_mem]
269	serge	205	mov edi, [file_size]
		206	add edi, 4095
		207	and edi, not 4095
		208	sub ecx, edi
		209	jna @F
		210
		211	xor eax, eax
		212	add edi, new_app_base
237	serge	213	cld
269	serge	214	rep stosb
247	serge	215	@@:
269	serge	216	end if
		217
		218	; release only virtual space, not phisical memory
		219
		220	stdcall free_kernel_space, [file_base]
363	serge	221	lea eax, [hdr_cmdline]
		222	lea ebx, [cmdline]
		223	lea ecx, [filename]
		224	stdcall set_app_params ,[slot],eax,ebx,ecx,[flags]
237	serge	225
		226	mov eax, [save_cr3]
		227	call set_cr3
		228
363	serge	229	; popfd
247	serge	230	xor ebx, ebx
		231	mov [application_table_status],ebx ;unlock application_table_status mutex
		232	mov eax,[process_number] ;set result
164	serge	233	ret
237	serge	234	.failed:
		235	mov eax, [save_cr3]
		236	call set_cr3
269	serge	237	.err:
363	serge	238	; popfd
247	serge	239	.err_hdr:
		240	stdcall kernel_free,[file_base]
		241	.err_file:
237	serge	242	xor eax, eax
		243	mov [application_table_status],eax
321	diamond	244	mov eax, ecx
237	serge	245	ret
		246	endp
164	serge	247
237	serge	248	align 4
		249	test_app_header:
		250	virtual at eax
		251	APP_HEADER_00 APP_HEADER_00
		252	end virtual
		253	virtual at eax
164	serge	254	APP_HEADER_01 APP_HEADER_01
		255	end virtual
		256
237	serge	257	cmp dword [eax], 'MENU'
		258	jne .fail
		259	cmp word [eax+4],'ET'
		260	jne .fail
164	serge	261
237	serge	262	cmp [eax+6], word '00'
		263	jne .check_01_header
164	serge	264
237	serge	265	mov ecx,[APP_HEADER_00.start]
		266	mov [ebx+0x08], ecx ;app_eip
		267	mov edx,[APP_HEADER_00.mem_size]
		268	mov [ebx+0x10], edx ;app_mem
		269	shr edx,1
		270	sub edx,0x10
		271	mov [ebx+0x0C], edx ;app_esp
		272	mov ecx,[APP_HEADER_00.i_param]
		273	mov [ebx], ecx ;app_cmdline
		274	mov [ebx+4], dword 0 ;app_path
269	serge	275	mov edx, [APP_HEADER_00.i_end]
		276	mov [ebx+0x14], edx
164	serge	277	ret
		278
237	serge	279	.check_01_header:
164	serge	280
237	serge	281	cmp [eax+6],word '01'
		282	jne .fail
		283
		284	mov ecx,[APP_HEADER_01.start]
		285	mov [ebx+0x08], ecx ;app_eip
		286	mov edx,[APP_HEADER_01.mem_size]
		287	mov [ebx+0x10], edx ;app_mem
		288	mov ecx,[APP_HEADER_01.stack_top]
		289	mov [ebx+0x0C], ecx ;app_esp
		290	mov edx,[APP_HEADER_01.i_param]
		291	mov [ebx], edx ;app_cmdline
		292	mov ecx,[APP_HEADER_01.i_icon]
		293	mov [ebx+4], ecx ;app_path
269	serge	294	mov edx, [APP_HEADER_01.i_end]
		295	mov [ebx+0x14], edx
237	serge	296	ret
		297	.fail:
164	serge	298	xor eax, eax
		299	ret
		300
		301	align 4
		302	proc get_new_process_place
		303	;input:
		304	; none
		305	;result:
		306	; eax=[new_process_place]<>0 - ok
		307	; 0 - failed.
		308	;This function find least empty slot.
		309	;It doesn't increase [TASK_COUNT]!
		310	mov eax,CURRENT_TASK
		311	mov ebx,[TASK_COUNT]
		312	inc ebx
		313	shl ebx,5
		314	add ebx,eax ;ebx - address of process information for (last+1) slot
		315	.newprocessplace:
		316	;eax = address of process information for current slot
		317	cmp eax,ebx
		318	jz .endnewprocessplace ;empty slot after high boundary
		319	add eax,0x20
		320	cmp word [eax+0xa],9 ;check process state, 9 means that process slot is empty
		321	jnz .newprocessplace
		322	.endnewprocessplace:
		323	mov ebx,eax
		324	sub eax,CURRENT_TASK
		325	shr eax,5 ;calculate slot index
		326	cmp eax,256
		327	jge .failed ;it should be <256
		328	mov word [ebx+0xa],9 ;set process state to 9 (for slot after hight boundary)
		329	; mov [new_process_place], eax
		330	ret
		331
		332	.failed:
		333	xor eax,eax
		334	ret
		335	endp
		336
		337	align 4
269	serge	338	proc create_app_space stdcall, app_size:dword,img_base:dword,img_size:dword
164	serge	339	locals
		340	app_pages dd ?
		341	img_pages dd ?
		342	dir_addr dd ?
		343	app_tabs dd ?
		344	endl
		345
276	serge	346	mov ebx, pg_data.pg_mutex
		347	call wait_mutex ;ebx
164	serge	348
		349	xor eax, eax
		350	mov [dir_addr], eax
		351
		352	mov eax, [app_size]
172	serge	353	add eax, 4095
164	serge	354	and eax, NOT(4095)
		355	mov [app_size], eax
		356	mov ebx, eax
		357	shr eax, 12
		358	mov [app_pages], eax
170	serge	359
164	serge	360	add ebx, 0x3FFFFF
		361	and ebx, NOT(0x3FFFFF)
		362	shr ebx, 22
		363	mov [app_tabs], ebx
		364
170	serge	365	mov ecx, [img_size]
		366	add ecx, 4095
		367	and ecx, NOT(4095)
164	serge	368
170	serge	369	mov [img_size], ecx
		370	shr ecx, 12
		371	mov [img_pages], ecx
164	serge	372
170	serge	373	if GREEDY_KERNEL
		374	lea eax, [ecx+ebx+2] ;only image size
		375	else
		376	lea eax, [eax+ebx+2] ;all requested memory
		377	end if
		378	cmp eax, [pg_data.pages_free]
		379	ja .fail
		380
164	serge	381	call alloc_page
		382	test eax, eax
		383	jz .fail
		384	mov [dir_addr], eax
		385	stdcall map_page,[tmp_task_pdir],eax,dword PG_SW
		386
		387	mov esi, sys_pgdir
		388	mov edi, [tmp_task_pdir]
378	serge	389	mov ecx, (page_tabs shr 20)/4
164	serge	390	cld
		391	rep movsd
		392
378	serge	393	mov eax, [dir_addr]
		394	or eax, PG_SW
		395	stosd ; [(page_tabs shr 20)]= eax
		396
		397	mov ecx, 0x800/4
164	serge	398	xor eax, eax
		399	rep stosd
		400
188	serge	401	mov eax, [dir_addr]
164	serge	402	call set_cr3
		403
		404	mov edx, [app_tabs]
		405	mov edi, new_app_base
		406	@@:
		407	call alloc_page
		408	test eax, eax
		409	jz .fail
		410
188	serge	411	stdcall map_page_table, edi, eax
164	serge	412	add edi, 0x00400000
		413	dec edx
		414	jnz @B
		415
		416	mov edi, new_app_base
		417	shr edi, 10
365	serge	418	add edi, page_tabs
269	serge	419
164	serge	420	mov ecx, [app_tabs]
		421	shl ecx, 10
		422	xor eax, eax
		423	rep stosd
		424
269	serge	425	mov ecx, [img_pages]
		426	mov ebx, PG_UW
164	serge	427	mov edx, new_app_base
269	serge	428	mov esi, [img_base]
		429	mov edi, new_app_base
		430	shr esi, 10
		431	shr edi, 10
365	serge	432	add esi, page_tabs
		433	add edi, page_tabs
269	serge	434	.remap:
		435	lodsd
		436	or eax, ebx ; force user level r/w access
		437	stosd
		438	add edx, 0x1000
		439	dec [app_pages]
		440	dec ecx
		441	jnz .remap
		442
		443	mov ecx, [app_pages]
		444	test ecx, ecx
		445	jz .done
		446
		447	if GREEDY_KERNEL
		448	mov eax, 0x02
		449	.reserve:
		450	stosd
		451	invlpg [edx]
		452	add edx, 4096
		453	dec ecx
		454	jnz .reserve
		455	else
		456
164	serge	457	.alloc:
		458	call alloc_page
		459	test eax, eax
		460	jz .fail
		461
		462	stdcall map_page,edx,eax,dword PG_UW
		463	add edx, 0x1000
269	serge	464	dec [app_pages]
164	serge	465	jnz .alloc
		466
269	serge	467	end if
164	serge	468
269	serge	469	.done:
164	serge	470	stdcall map_page,[tmp_task_pdir],dword 0,dword PG_UNMAP
		471
		472	dec [pg_data.pg_mutex]
		473	mov eax, [dir_addr]
		474	ret
		475	.fail:
		476	dec [pg_data.pg_mutex]
		477	cmp [dir_addr], 0
357	serge	478	je @f
164	serge	479	stdcall destroy_app_space, [dir_addr]
		480	@@:
		481	xor eax, eax
		482	ret
		483	endp
		484
		485	align 4
		486	set_cr3:
		487	mov esi, [CURRENT_TASK]
		488	mov ebx, esi
		489	shl esi,8
380	serge	490	mov [SLOT_BASE+esi+0xB8],eax
164	serge	491	imul ebx,tss_step
		492	add ebx,tss_data
		493	mov [ebx+28], eax
		494	mov cr3, eax
		495	ret
		496
		497	align 4
		498	proc destroy_page_table stdcall, pg_tab:dword
		499
		500	push esi
		501
		502	mov esi, [pg_tab]
		503	mov ecx, 1024
		504	.free:
		505	mov eax, [esi]
		506	test eax, 1
		507	jz .next
		508	call free_page
		509	.next:
		510	add esi, 4
		511	dec ecx
		512	jnz .free
		513	pop esi
		514	ret
		515	endp
		516
		517	align 4
		518	proc destroy_app_space stdcall, pg_dir:dword
		519
276	serge	520	mov ebx, pg_data.pg_mutex
		521	call wait_mutex ;ebx
164	serge	522
		523	xor edx,edx
		524	mov eax,0x2
		525	mov ebx, [pg_dir]
		526
		527	.loop:
		528	;eax = current slot of process
		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
380	serge	534	cmp [SLOT_BASE+ecx+0xB8],ebx ;compare page directory addresses
164	serge	535	jnz @f
		536	inc edx ;thread found
		537	@@:
		538	inc eax
		539	cmp eax,[TASK_COUNT] ;exit loop if we look through all processes
		540	jle .loop
		541
		542	;edx = number of threads
		543	;our process is zombi so it isn't counted
		544	cmp edx,1
		545	jg .exit
		546	;if there isn't threads then clear memory.
		547
		548	mov eax, [pg_dir]
		549	and eax, not 0xFFF
		550	stdcall map_page,[tmp_task_pdir],eax,dword PG_SW
		551	mov esi, [tmp_task_pdir]
378	serge	552	add esi, 0x800
		553	mov edi, 0x800/4
164	serge	554	.destroy:
		555	mov eax, [esi]
		556	test eax, 1
		557	jz .next
		558	and eax, not 0xFFF
		559	stdcall map_page,[tmp_task_ptab],eax,dword PG_SW
		560	stdcall destroy_page_table, [tmp_task_ptab]
		561	mov eax, [esi]
		562	call free_page
		563	.next:
		564	add esi, 4
		565	dec edi
		566	jnz .destroy
		567
		568	mov eax, [pg_dir]
		569	call free_page
		570	.exit:
		571	stdcall map_page,[tmp_task_ptab],dword 0,dword PG_UNMAP
		572	stdcall map_page,[tmp_task_pdir],dword 0,dword PG_UNMAP
		573	dec [pg_data.pg_mutex]
		574	ret
		575	endp
		576
		577	pid_to_slot:
		578	;Input:
		579	; eax - pid of process
		580	;Output:
		581	; eax - slot of process or 0 if process don't exists
		582	;Search process by PID.
		583	push ebx
		584	push ecx
		585	mov ebx,[TASK_COUNT]
		586	shl ebx,5
		587	mov ecx,2*32
		588
		589	.loop:
		590	;ecx=offset of current process info entry
		591	;ebx=maximum permitted offset
		592	cmp byte [CURRENT_TASK+ecx+0xa],9
		593	jz .endloop ;skip empty slots
		594	cmp [CURRENT_TASK+ecx+0x4],eax ;check PID
		595	jz .pid_found
		596	.endloop:
		597	add ecx,32
		598	cmp ecx,ebx
		599	jle .loop
		600
		601	pop ecx
		602	pop ebx
		603	xor eax,eax
		604	ret
		605
		606	.pid_found:
		607	shr ecx,5
		608	mov eax,ecx ;convert offset to index of slot
		609	pop ecx
		610	pop ebx
		611	ret
		612
		613	check_region:
		614	;input:
		615	; ebx - start of buffer
		616	; ecx - size of buffer
		617	;result:
		618	; eax = 1 region lays in app memory
		619	; eax = 0 region don't lays in app memory
		620	mov eax,[CURRENT_TASK]
		621	jmp check_process_region
		622	;-----------------------------------------------------------------------------
		623	check_process_region:
		624	;input:
		625	; eax - slot
		626	; ebx - start of buffer
		627	; ecx - size of buffer
		628	;result:
		629	; eax = 1 region lays in app memory
		630	; eax = 0 region don't lays in app memory
		631
		632	test ecx,ecx
		633	jle .ok
		634	shl eax,5
		635	cmp word [CURRENT_TASK+eax+0xa],0
		636	jnz .failed
		637	shl eax,3
380	serge	638	mov eax,[SLOT_BASE+eax+0xb8]
164	serge	639	test eax,eax
		640	jz .failed
		641
		642	mov eax,1
		643	ret
		644
		645
		646	; call MEM_Get_Linear_Address
		647	; push ebx
		648	; push ecx
		649	; push edx
		650	; mov edx,ebx
		651	; and edx,not (4096-1)
		652	; sub ebx,edx
		653	; add ecx,ebx
		654	; mov ebx,edx
		655	; add ecx,(4096-1)
		656	; and ecx,not (4096-1)
		657	;.loop:
		658	;;eax - linear address of page directory
		659	;;ebx - current page
		660	;;ecx - current size
		661	; mov edx,ebx
		662	; shr edx,22
		663	; mov edx,[eax+4*edx]
		664	; and edx,not (4096-1)
		665	; test edx,edx
		666	; jz .failed1
		667	; push eax
		668	; mov eax,edx
		669	; call MEM_Get_Linear_Address
		670	; mov edx,ebx
		671	; shr edx,12
		672	; and edx,(1024-1)
		673	; mov eax,[eax+4*edx]
		674	; and eax,not (4096-1)
		675	; test eax,eax
		676	; pop eax
		677	; jz .failed1
		678	; add ebx,4096
		679	; sub ecx,4096
		680	; jg .loop
		681	; pop edx
		682	; pop ecx
		683	; pop ebx
		684	.ok:
		685	mov eax,1
		686	ret
		687	;
		688	;.failed1:
		689	; pop edx
		690	; pop ecx
		691	; pop ebx
		692	.failed:
		693	xor eax,eax
		694	ret
		695
		696	align 4
		697	proc read_process_memory
		698	;Input:
		699	; eax - process slot
		700	; ebx - buffer address
		701	; ecx - buffer size
		702	; edx - start address in other process
		703	;Output:
		704	; eax - number of bytes read.
		705	locals
		706	slot dd ?
		707	buff dd ?
		708	r_count dd ?
		709	offset dd ?
		710	tmp_r_cnt dd ?
		711	endl
		712
		713	mov [slot], eax
		714	mov [buff], ebx
		715	mov [r_count], ecx
		716	mov [tmp_r_cnt], ecx
		717	mov [offset], edx
		718
		719	pushad
		720	.read_mem:
		721	mov edx, [offset]
		722	mov ebx, [tmp_r_cnt]
		723
		724	mov ecx, 0x400000
		725	and edx, 0x3FFFFF
		726	sub ecx, edx
		727	cmp ecx, ebx
		728	jbe @f
		729	mov ecx, ebx
		730	@@:
		731	cmp ecx, 0x8000
		732	jna @F
		733	mov ecx, 0x8000
		734	@@:
		735	mov eax, [slot]
		736	shl eax,8
		737	mov ebx, [offset]
		738	add ebx, new_app_base
		739	push ecx
		740	stdcall map_memEx, [proc_mem_map],\
380	serge	741	[SLOT_BASE+eax+0xB8],\
164	serge	742	ebx, ecx
		743	pop ecx
		744
		745	mov esi, [offset]
		746	and esi, 0xfff
		747	add esi, [proc_mem_map]
		748	mov edi, [buff]
		749	mov edx, ecx
		750	rep movsb
		751
		752	add [offset], edx
		753	sub [tmp_r_cnt], edx
		754	jnz .read_mem
		755
		756	popad
		757	mov eax, [r_count]
		758	ret
		759	endp
		760
		761	align 4
		762	proc write_process_memory
		763	;Input:
		764	; eax - process slot
		765	; ebx - buffer address
		766	; ecx - buffer size
		767	; edx - start address in other process
		768	;Output:
		769	; eax - number of bytes written
		770
		771	locals
		772	slot dd ?
		773	buff dd ?
		774	w_count dd ?
		775	offset dd ?
		776	tmp_w_cnt dd ?
		777	endl
		778
		779	mov [slot], eax
		780	mov [buff], ebx
		781	mov [w_count], ecx
		782	mov [tmp_w_cnt], ecx
		783	mov [offset], edx
		784
		785	pushad
		786	.read_mem:
		787	mov edx, [offset]
		788	mov ebx, [tmp_w_cnt]
		789
		790	mov ecx, 0x400000
		791	and edx, 0x3FFFFF
		792	sub ecx, edx
		793	cmp ecx, ebx
		794	jbe @f
		795	mov ecx, ebx
		796	@@:
		797	cmp ecx, 0x8000
		798	jna @F
		799	mov ecx, 0x8000
		800	@@:
		801	mov eax, [slot]
		802	shl eax,8
		803	mov ebx, [offset]
		804	add ebx, new_app_base
		805	push ecx
		806	stdcall map_memEx, [proc_mem_map],\
380	serge	807	[SLOT_BASE+eax+0xB8],\
164	serge	808	ebx, ecx
		809	pop ecx
		810
		811	mov edi, [offset]
		812	and edi, 0xfff
		813	add edi, [proc_mem_map]
		814	mov esi, [buff]
		815	mov edx, ecx
		816	rep movsb
		817
		818	add [offset], edx
		819	sub [tmp_w_cnt], edx
		820	jnz .read_mem
		821
		822	popad
		823	mov eax, [w_count]
		824	ret
		825	endp
		826
		827	align 4
		828	proc new_sys_threads
		829	locals
		830	slot dd ?
237	serge	831	app_cmdline dd ? ;0x00
		832	app_path dd ? ;0x04
		833	app_eip dd ? ;0x08
		834	app_esp dd ? ;0x0C
		835	app_mem dd ? ;0x10
164	serge	836	endl
		837
237	serge	838	cmp eax,1
		839	jne .failed ;other subfunctions
164	serge	840
237	serge	841	xor eax,eax
		842	mov [app_cmdline], eax
		843	mov [app_path], eax
		844	mov [app_eip], ebx
		845	mov [app_esp], ecx
164	serge	846
		847	mov esi,new_process_loading
		848	call sys_msg_board_str
		849	.wait_lock:
		850	cmp [application_table_status],0
		851	je .get_lock
		852	call change_task
		853	jmp .wait_lock
		854
		855	.get_lock:
		856	mov eax, 1
		857	xchg eax, [application_table_status]
		858	cmp eax, 0
		859	jne .wait_lock
		860
		861	call set_application_table_status
		862
		863	call get_new_process_place
		864	test eax, eax
		865	jz .failed
		866
		867	mov [slot], eax
		868
		869	mov esi,[CURRENT_TASK]
		870	shl esi,8
380	serge	871	add esi,SLOT_BASE
237	serge	872	mov ebx,esi ;ebx=esi - pointer to extended information about current thread
164	serge	873
237	serge	874	mov edi, eax
164	serge	875	shl edi,8
380	serge	876	add edi,SLOT_BASE
237	serge	877	mov edx,edi ;edx=edi - pointer to extended infomation about new thread
164	serge	878	mov ecx,256/4
237	serge	879	xor eax, eax
		880	cld
		881	rep stosd ;clean extended information about new thread
		882	mov esi,ebx
164	serge	883	mov edi,edx
		884	mov ecx,11
237	serge	885	rep movsb ;copy process name
164	serge	886
237	serge	887	mov eax,[ebx+APPDATA.heap_base]
		888	mov [edx+APPDATA.heap_base], eax
164	serge	889
237	serge	890	mov ecx,[ebx+APPDATA.heap_top]
		891	mov [edx+APPDATA.heap_top], ecx
		892
		893	mov eax,[ebx+APPDATA.mem_size]
		894	mov [edx+APPDATA.mem_size], eax
		895
		896	mov ecx,[ebx+APPDATA.dir_table]
		897	mov [edx+APPDATA.dir_table],ecx ;copy page directory
		898
		899	lea eax, [app_cmdline]
		900	stdcall set_app_params ,[slot],eax,dword 0,\
		901	dword 0,dword 0
		902
164	serge	903	mov esi,new_process_running
		904	call sys_msg_board_str ;output information about succefull startup
		905
		906	mov [application_table_status],0 ;unlock application_table_status mutex
		907	mov eax,[process_number] ;set result
		908	ret
		909	.failed:
		910	mov [application_table_status],0
		911	mov eax,-1
		912	ret
		913	endp
		914
276	serge	915	; param
		916	; ebx=mutex
		917
164	serge	918	align 4
276	serge	919	wait_mutex:
		920	push eax
		921	push ebx
321	diamond	922	.do_wait:
164	serge	923	cmp dword [ebx],0
		924	je .get_lock
		925	call change_task
321	diamond	926	jmp .do_wait
164	serge	927	.get_lock:
		928	mov eax, 1
		929	xchg eax, [ebx]
		930	test eax, eax
321	diamond	931	jnz .do_wait
276	serge	932	pop ebx
		933	pop eax
164	serge	934	ret
		935
237	serge	936	align 4
		937	proc set_app_params stdcall,slot:dword, params:dword,\
		938	cmd_line:dword, app_path:dword, flags:dword
164	serge	939
357	serge	940	locals
		941	pl0_stack dd ?
		942	endl
237	serge	943
357	serge	944	stdcall kernel_alloc, 0x2000
		945	mov [pl0_stack], eax
		946
		947	lea edi, [eax+0x2000-512]
		948
		949	mov eax, [slot]
		950	mov ebx, eax
		951
		952	shl eax, 8
380	serge	953	mov [eax+SLOT_BASE+APPDATA.fpu_state], edi
		954	mov [eax+SLOT_BASE+APPDATA.fpu_handler], 0
		955	mov [eax+SLOT_BASE+APPDATA.sse_handler], 0
357	serge	956
		957	mov esi, fpu_data
237	serge	958	mov ecx, 512/4
		959	rep movsd
		960
357	serge	961	cmp ebx,[TASK_COUNT]
		962	jle .noinc
		963	inc dword [TASK_COUNT] ;update number of processes
237	serge	964	.noinc:
281	serge	965	shl ebx,8
380	serge	966	lea edx, [ebx+SLOT_BASE+APP_EV_OFFSET]
		967	mov [SLOT_BASE+APPDATA.fd_ev+ebx],edx
		968	mov [SLOT_BASE+APPDATA.bk_ev+ebx],edx
354	serge	969
		970	add edx, APP_OBJ_OFFSET-APP_EV_OFFSET
380	serge	971	mov [SLOT_BASE+APPDATA.fd_obj+ebx],edx
		972	mov [SLOT_BASE+APPDATA.bk_obj+ebx],edx
237	serge	973
281	serge	974	mov ecx, [def_cursor]
380	serge	975	mov [SLOT_BASE+APPDATA.cursor+ebx],ecx
357	serge	976	mov eax, [pl0_stack]
380	serge	977	mov [SLOT_BASE+APPDATA.pl0_stack+ebx],eax
281	serge	978
		979	shr ebx,3
237	serge	980	mov eax, new_app_base
		981	mov dword [CURRENT_TASK+ebx+0x10],eax
		982
		983	.add_command_line:
		984	mov edx,[params]
		985	mov edx,[edx] ;app_cmdline
		986	test edx,edx
		987	jz @F ;application don't need parameters
281	serge	988
		989	mov eax, edx
		990	add eax, 256
		991	jc @f
		992
380	serge	993	cmp eax, [SLOT_BASE+APPDATA.mem_size+ebx*8]
281	serge	994	ja @f
		995
237	serge	996	add edx, new_app_base
262	diamond	997	stdcall k_strncpy, edx, [cmd_line], 256
237	serge	998	@@:
		999	mov edx,[params]
		1000	mov edx, [edx+4] ;app_path
		1001	test edx,edx
		1002	jz @F ;application don't need path of file
262	diamond	1003	mov eax, edx
		1004	add eax, 1024
		1005	jc @f
380	serge	1006	cmp eax, [SLOT_BASE+APPDATA.mem_size+ebx*8]
262	diamond	1007	ja @f
237	serge	1008	add edx, new_app_base
262	diamond	1009	stdcall k_strncpy, edx, [app_path], 1024
237	serge	1010	@@:
		1011	mov ebx,[slot]
		1012	mov eax,ebx
		1013	shl ebx,5
		1014	; set window state to 'normal' (non-minimized/maximized/rolled-up) state
		1015	mov [ebx+window_data+WDATA.fl_wstate], WSTATE_NORMAL
		1016	mov [ebx+window_data+WDATA.fl_redraw], 1
		1017	add ebx,CURRENT_TASK ;ebx - pointer to information about process
		1018	mov [ebx+TASKDATA.wnd_number],al;set window number on screen = process slot
		1019
		1020	mov [ebx+TASKDATA.event_mask],dword 1+2+4 ;set default event flags (see 40 function)
		1021
		1022	inc dword [process_number]
		1023	mov eax,[process_number]
		1024	mov [ebx+4],eax ;set PID
		1025
		1026	mov ecx,ebx
		1027	add ecx,(draw_data-CURRENT_TASK) ;ecx - pointer to draw data
		1028	;set draw data to full screen
		1029
		1030	mov [ecx+0],dword 0
		1031	mov [ecx+4],dword 0
		1032	mov eax,[SCR_X_SIZE]
		1033	mov [ecx+8],eax
		1034	mov eax,[SCR_Y_SIZE]
		1035	mov [ecx+12],eax
		1036
		1037	mov edi,[slot]
		1038	imul edi,tss_step
		1039	add edi,tss_data
		1040	mov ecx,128/4
		1041	xor eax, eax
		1042	cld
		1043	rep stosd
		1044	;Add IO access table - bit array of permitted ports
		1045	not eax
		1046	mov ecx,2048
		1047	rep stosd ; access to 4096*8=65536 ports
		1048	sub edi, tss_step
		1049
		1050	;set cr3 register in TSS of application
		1051	mov ecx, [slot]
		1052	shl ecx, 8
380	serge	1053	mov eax,[SLOT_BASE+ecx+APPDATA.dir_table]
237	serge	1054	mov [edi+TSS._cr3],eax
		1055
		1056	mov esi,[params]
		1057	mov eax, [esi+0x08] ;app_eip
		1058	mov [edi+TSS._eip],eax ;set eip in TSS
		1059	mov eax, [esi+0x0C] ;app_esp
		1060	mov [edi+TSS._esp],eax ;set stack in TSS
273	diamond	1061	mov [edi+TSS._eflags],dword 0x1202
237	serge	1062
		1063	mov [edi+TSS._cs],app_code ;selector of code segment
		1064	mov [edi+TSS._ss],app_data
		1065	mov [edi+TSS._ds],app_data
		1066	mov [edi+TSS._es],app_data
		1067	mov [edi+TSS._fs],app_data
		1068	mov [edi+TSS._gs],graph_data ;selector of graphic segment
		1069	mov [edi+TSS._io],word 128
		1070	mov [edi+TSS._ss0], os_data
357	serge	1071	mov ebx, [pl0_stack]
		1072	add ebx, 0x2000-512
237	serge	1073	mov [edi+TSS._esp0],ebx
		1074
		1075	mov ecx, edi ;ecx - address of application TSS
		1076	mov ebx,[slot]
		1077	shl ebx,3
		1078	;set TSS descriptor
		1079	mov [ebx+gdts+tss0+0],word tss_step ;limit (size)
		1080	mov [ebx+gdts+tss0+2],cx ;part of offset
		1081	shr ecx,16
		1082	mov [ebx+gdts+tss0+4],cl ;part of offset
		1083	mov [ebx+gdts+tss0+7],ch ;part of offset
		1084	mov [ebx+gdts+tss0+5],word 01010000b*256+11101001b ;system flags
		1085
		1086	;flush keyboard and buttons queue
		1087	mov [KEY_COUNT],byte 0
		1088	mov [BTN_COUNT],byte 0
		1089
		1090	mov edi,[slot]
		1091	shl edi,5
		1092	add edi,window_data
		1093	mov ebx,[slot]
		1094	movzx esi,word [WIN_STACK+ebx*2]
		1095	lea esi,[WIN_POS+esi*2]
		1096	call windowactivate ;gui initialization
		1097
		1098	mov ebx,[slot]
		1099	shl ebx,5
		1100	mov [CURRENT_TASK+ebx+0xa],byte 0 ;set process state - running
		1101	; set if debuggee
		1102	mov eax, [flags]
		1103	test byte [flags], 1
		1104	jz .no_debug
		1105	mov [CURRENT_TASK+ebx+0xa],byte 1 ;set process state - suspended
		1106	mov eax,[CURRENT_TASK]
380	serge	1107	mov [SLOT_BASE+ebx*8+0xac],eax ;set debugger PID - current
237	serge	1108	.no_debug:
		1109	mov esi,new_process_running
		1110	call sys_msg_board_str ;output information about succefull startup
		1111	ret
		1112	endp
		1113
		1114
		1115
164	serge	1116	include "debug.inc"
		1117
		1118	iglobal
		1119	new_process_loading db 'K : New Process - loading',13,10,0
		1120	new_process_running db 'K : New Process - done',13,10,0
		1121	start_not_enough_memory db 'K : New Process - not enough memory',13,10,0
		1122	endg
		1123

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(root)/kernel/trunk/core/taskman.inc @ 1314 – Rev 380