WebSVN – Kolibri OS – Blame – /kernel/branches/kolibri-process/core/taskman.inc

Rev	Author	Line No.	Line
4429	Serge	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		2	;; ;;
		3	;; Copyright (C) KolibriOS team 2004-2012. All rights reserved. ;;
		4	;; Distributed under terms of the GNU General Public License ;;
		5	;; ;;
		6	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		7
		8	$Revision: 4424 $
		9
		10
		11	GREEDY_KERNEL equ 0
		12
		13	struct 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	ends
		21
		22	struct 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	ends
		32
		33
		34	struct APP_PARAMS
		35	app_cmdline dd ? ;0x00
		36	app_path dd ? ;0x04
		37	app_eip dd ? ;0x08
		38	app_esp dd ? ;0x0C
		39	app_mem dd ? ;0x10
		40	ends
		41
		42	macro _clear_ op
		43	{ mov ecx, op/4
		44	xor eax, eax
		45	cld
		46	rep stosd
		47	}
		48
		49	fs_execute_from_sysdir:
		50	xor ebx, ebx
		51	fs_execute_from_sysdir_param:
		52	xor edx, edx
		53	mov esi, sysdir_path
		54
		55	align 4
		56	proc fs_execute
		57
		58	;fn_read:dword, file_size:dword, cluster:dword
		59
		60	; ebx - cmdline
		61	; edx - flags
		62	; ebp - full filename
		63	; [esp+4] = procedure DoRead, [esp+8] = filesize & [esp+12]... - arguments for it
		64
		65	locals
		66	cmdline_size dd ? ; +0 ; cmdline -12
		67	cmdline_adr dd ? ; +4 ; cmdline -8
		68	cmdline_flag dd ? ; +8 ; cmdline -4
		69	cmdline rd 64 ;256/4
		70	filename rd 256 ;1024/4
		71	flags dd ?
		72
		73	save_proc dd ?
		74	slot dd ?
		75	slot_base dd ?
		76	file_base dd ?
		77	file_size dd ?
		78	handle dd ? ;temp. for default cursor handle for curr. thread
		79	;app header data
		80	hdr_cmdline dd ? ;0x00
		81	hdr_path dd ? ;0x04
		82	hdr_eip dd ? ;0x08
		83	hdr_esp dd ? ;0x0C
		84	hdr_mem dd ? ;0x10
		85	hdr_i_end dd ? ;0x14
		86	endl
		87
		88	pushad
		89
		90	cmp [SCR_MODE], word 0x13
		91	jbe @f
		92	pushad
		93	stdcall set_cursor, [def_cursor_clock]
		94	mov [handle], eax
		95	mov [redrawmouse_unconditional], 1
		96	call wakeup_osloop
		97	popad
		98	@@:
		99	mov [flags], edx
		100
		101	; [ebp] pointer to filename
		102
		103	lea edi, [filename]
		104	lea ecx, [edi+1024]
		105	mov al, '/'
		106	stosb
		107	@@:
		108	cmp edi, ecx
		109	jae .bigfilename
		110	lodsb
		111	stosb
		112	test al, al
		113	jnz @b
		114	mov esi, [ebp]
		115	test esi, esi
		116	jz .namecopied
		117	mov byte [edi-1], '/'
		118	@@:
		119	cmp edi, ecx
		120	jae .bigfilename
		121	lodsb
		122	stosb
		123	test al, al
		124	jnz @b
		125	jmp .namecopied
		126	.bigfilename:
		127	popad
		128	mov eax, -ERROR_FILE_NOT_FOUND
		129
		130	jmp .final
		131
		132	.namecopied:
		133	xor eax, eax
		134	mov [cmdline_flag], eax
		135	mov [cmdline_adr], eax
		136	mov [cmdline_size], eax
		137
		138	mov [cmdline], ebx
		139	test ebx, ebx
		140	jz .no_copy
		141	;--------------------------------------
		142	pushad
		143	pushfd
		144	mov esi, ebx
		145	mov ecx, 65536 ; 64 Kb max for ext.cmdline
		146	cld
		147	@@:
		148	dec ecx
		149	jz .end_string
		150
		151	lodsb
		152	test al, al
		153	jnz @b
		154
		155	.end_string:
		156	mov eax, 65536 ; 64 Kb max for ext.cmdline
		157	sub eax, ecx
		158	mov [cmdline_size], eax
		159	cmp eax, 255
		160	ja @f
		161
		162	popfd
		163	popad
		164	jmp .old_copy
		165
		166	@@:
		167	xor eax, eax
		168	dec eax
		169	mov [cmdline_flag], eax
		170	popfd
		171	popad
		172	; get memory for the extended command line
		173	stdcall kernel_alloc, [cmdline_size] ;eax
		174	test eax, eax
		175	jz .old_copy ; get memory failed
		176
		177	mov [cmdline_adr], eax
		178
		179	pushad
		180	pushfd
		181	mov esi, ebx
		182	mov edi, eax
		183	mov ecx, [cmdline_size]
		184	cld
		185	rep movsb
		186	popfd
		187	popad
		188	jmp .no_copy
		189
		190	.old_copy:
		191	; clear flag because old method with 256 bytes
		192	xor eax, eax
		193	mov [cmdline_flag], eax
		194	;--------------------------------------
		195	lea eax, [cmdline]
		196	mov dword [eax+252], 0
		197	.copy:
		198	stdcall strncpy, eax, ebx, 255
		199	.no_copy:
		200	lea eax, [filename]
		201	stdcall load_file, eax
		202
		203	mov esi, -ERROR_FILE_NOT_FOUND
		204	test eax, eax
		205	jz .err_file
		206
		207	mov [file_base], eax
		208	mov [file_size], ebx
		209
		210	lea ebx, [hdr_cmdline]
		211	call test_app_header
		212	mov esi, -0x1F
		213	test eax, eax
		214	jz .err_hdr
		215
		216	call lock_application_table
		217
		218	call alloc_thread_slot
		219	test eax, eax
		220	mov esi, -0x20 ; too many processes
		221	jz .err
		222
		223	mov [slot], eax
		224	shl eax, 8
		225	add eax, SLOT_BASE
		226	mov [slot_base], eax
		227	mov edi, eax
		228	_clear_ 256 ;clean extended information about process
		229
		230	; write application name
		231	lea eax, [filename]
		232	stdcall strrchr, eax, '/' ; now eax points to name without path
		233
		234	lea esi, [eax+1]
		235	test eax, eax
		236	jnz @F
		237	lea esi, [filename]
		238	@@:
		239	mov ecx, 11 ; 11 chars for name! 8 - is old value!
		240	mov edi, [slot_base]
		241	.copy_process_name_loop:
		242	lodsb
		243	cmp al, '.'
		244	jz .copy_process_name_done
		245	test al, al
		246	jz .copy_process_name_done
		247	stosb
		248	loop .copy_process_name_loop
		249	.copy_process_name_done:
		250
4432	Serge	251	mov ebx, [current_process]
4429	Serge	252	mov [save_proc], ebx
		253
		254	stdcall create_process, [hdr_mem], [file_base], [file_size]
		255	mov esi, -30; no memory
		256	test eax, eax
		257	jz .failed
		258
4430	Serge	259	mov ebx, [hdr_mem]
		260	mov [eax+PROC.mem_used], ebx
		261
4429	Serge	262	mov ebx, [slot_base]
		263	mov [ebx+APPDATA.process], eax
		264
4457	Serge	265	lea edx, [ebx+APPDATA.list]
		266	lea ecx, [eax+PROC.thr_list]
		267	list_add_tail edx, ecx
		268
4429	Serge	269	xor edx, edx
		270	cmp word [6], '02'
		271	jne @f
		272
		273	not edx
		274	@@:
		275	mov [ebx+APPDATA.tls_base], edx
		276
		277	if GREEDY_KERNEL
		278	else
		279	mov ecx, [hdr_mem]
		280	mov edi, [file_size]
		281	add edi, 4095
		282	and edi, not 4095
		283	sub ecx, edi
		284	jna @F
		285
		286	xor eax, eax
		287	cld
		288	rep stosb
		289	@@:
		290	end if
		291
		292	; release only virtual space, not phisical memory
		293
		294	stdcall free_kernel_space, [file_base]
		295	lea eax, [hdr_cmdline]
		296	lea ebx, [cmdline]
		297	lea ecx, [filename]
		298	stdcall set_app_params , [slot], eax, ebx, ecx, [flags]
		299
		300	mov eax, [save_proc]
		301	call set_cr3
		302
		303	mov eax, [process_number];set result
		304	call unlock_application_table
		305
		306	jmp .final
		307
		308	.failed:
		309	mov eax, [save_proc]
		310	call set_cr3
		311	.err:
		312	.err_hdr:
		313	stdcall kernel_free, [file_base]
		314	.err_file:
		315	call unlock_application_table
		316	mov eax, esi
		317	.final:
		318	cmp [SCR_MODE], word 0x13
		319	jbe @f
		320	pushad
		321	stdcall set_cursor, [handle]
		322	mov [redrawmouse_unconditional], 1
		323	call wakeup_osloop
		324	popad
		325	@@:
		326	ret
		327	endp
		328
		329	align 4
		330	test_app_header:
		331	virtual at eax
		332	APP_HEADER_00 APP_HEADER_00_
		333	end virtual
		334	virtual at eax
		335	APP_HEADER_01 APP_HEADER_01_
		336	end virtual
		337
		338	cmp dword [eax], 'MENU'
		339	jne .fail
		340	cmp word [eax+4], 'ET'
		341	jne .fail
		342
		343	cmp [eax+6], word '00'
		344	jne .check_01_header
		345
		346	mov ecx, [APP_HEADER_00.start]
		347	mov [ebx+0x08], ecx ;app_eip
		348	mov edx, [APP_HEADER_00.mem_size]
		349	mov [ebx+0x10], edx ;app_mem
		350	shr edx, 1
		351	sub edx, 0x10
		352	mov [ebx+0x0C], edx ;app_esp
		353	mov ecx, [APP_HEADER_00.i_param]
		354	mov [ebx], ecx ;app_cmdline
		355	mov [ebx+4], dword 0 ;app_path
		356	mov edx, [APP_HEADER_00.i_end]
		357	mov [ebx+0x14], edx
		358	ret
		359
		360	.check_01_header:
		361
		362	cmp [eax+6], word '01'
		363	je @f
		364	cmp [eax+6], word '02'
		365	jne .fail
		366	@@:
		367	mov ecx, [APP_HEADER_01.start]
		368	mov [ebx+0x08], ecx ;app_eip
		369	mov edx, [APP_HEADER_01.mem_size]
		370
		371	; \begin{diamond}[20.08.2006]
		372	; sanity check (functions 19,58 load app_i_end bytes and that must
		373	; fit in allocated memory to prevent kernel faults)
		374	cmp edx, [APP_HEADER_01.i_end]
		375	jb .fail
		376	; \end{diamond}[20.08.2006]
		377
		378	mov [ebx+0x10], edx ;app_mem
		379	mov ecx, [APP_HEADER_01.stack_top]
		380	mov [ebx+0x0C], ecx ;app_esp
		381	mov edx, [APP_HEADER_01.i_param]
		382	mov [ebx], edx ;app_cmdline
		383	mov ecx, [APP_HEADER_01.i_icon]
		384	mov [ebx+4], ecx ;app_path
		385	mov edx, [APP_HEADER_01.i_end]
		386	mov [ebx+0x14], edx
		387	ret
		388	.fail:
		389	xor eax, eax
		390	ret
		391
		392
		393	align 4
		394	alloc_thread_slot:
		395	;input:
		396	; none
		397	;result:
		398	; eax=[new_thread_slot]<>0 - ok
		399	; 0 - failed.
		400	;This function find least empty slot.
		401	;It doesn't increase [TASK_COUNT]!
		402
		403
		404	mov edx, thr_slot_map
		405	pushfd
		406	cli
		407	.l1:
		408	bsf eax, [edx]
		409	jnz .found
		410	add edx, 4
		411	cmp edx, thr_slot_map+32
		412	jb .l1
		413
		414	popfd
		415	xor eax, eax
		416	ret
		417	.found:
		418	btr [edx], eax
		419	sub edx, thr_slot_map
		420	lea eax, [eax+edx*8]
		421	popfd
		422	ret
		423
		424
		425	align 4
		426	proc create_process stdcall, app_size:dword,img_base:dword,img_size:dword
		427	locals
		428	app_pages dd ?
		429	img_pages dd ?
		430	process dd ?
		431	app_tabs dd ?
		432	endl
		433
		434	mov ecx, pg_data.mutex
		435	call mutex_lock
		436
		437	xor eax, eax
		438	mov [process], eax
		439
		440	mov eax, [app_size]
		441	add eax, 4095
		442	and eax, NOT(4095)
		443	mov [app_size], eax
		444	mov ebx, eax
		445	shr eax, 12
		446	mov [app_pages], eax
		447
		448	add ebx, 0x3FFFFF
		449	and ebx, NOT(0x3FFFFF)
		450	shr ebx, 22
		451	mov [app_tabs], ebx
		452
		453	mov ecx, [img_size]
		454	add ecx, 4095
		455	and ecx, NOT(4095)
		456
		457	mov [img_size], ecx
		458	shr ecx, 12
		459	mov [img_pages], ecx
		460
		461	lea eax, [eax+ebx+2];all requested memory
		462
		463	cmp eax, [pg_data.pages_free]
		464	ja .fail
		465
		466	stdcall kernel_alloc, 0x2000
		467	test eax, eax
		468	jz .fail
		469	mov [process], eax
		470
		471	lea edi, [eax+PROC.heap_lock]
		472	mov ecx, (4096-PROC.heap_lock)/4
		473
		474	list_init eax
		475	add eax, PROC.thr_list
		476	list_init eax
		477
		478	xor eax, eax
		479	cld
		480	rep stosd
		481
		482	mov eax, edi
		483	call get_pg_addr
		484	mov [edi-4096+PROC.pdt_0_phys], eax
		485
		486	mov ecx, (OS_BASE shr 20)/4
		487	xor eax, eax
		488	rep stosd
		489
		490	mov ecx, (OS_BASE shr 20)/4
		491	mov esi, sys_proc+PROC.pdt_0+(OS_BASE shr 20)
		492	rep movsd
		493
		494	mov eax, [edi-8192+PROC.pdt_0_phys]
		495	or eax, PG_SW
		496	mov [edi-4096+(page_tabs shr 20)], eax
		497
		498	lea eax, [edi-8192]
		499	call set_cr3
		500
		501	mov edx, [app_tabs]
		502	xor edi, edi
		503	@@:
		504	call alloc_page
		505	test eax, eax
		506	jz .fail
		507
		508	stdcall map_page_table, edi, eax
		509	add edi, 0x00400000
		510	dec edx
		511	jnz @B
		512
		513	mov edi, page_tabs
		514
		515	mov ecx, [app_tabs]
		516	shl ecx, 10
		517	xor eax, eax
		518	rep stosd
		519
		520	mov ecx, [img_pages]
		521	mov ebx, PG_UW
		522	xor edx, edx
		523	mov esi, [img_base]
		524	shr esi, 10
		525	add esi, page_tabs
		526	mov edi, page_tabs
		527	.remap:
		528	lodsd
		529	and eax, 0xFFFFF000
		530	or eax, ebx; force user level r/w access
		531	stosd
		532	add edx, 0x1000
		533	dec [app_pages]
		534	dec ecx
		535	jnz .remap
		536
		537	mov ecx, [app_pages]
		538	test ecx, ecx
		539	jz .done
		540
		541	.alloc:
		542	call alloc_page
		543	test eax, eax
		544	jz .fail
		545
		546	stdcall map_page, edx, eax, dword PG_UW
		547	add edx, 0x1000
		548	dec [app_pages]
		549	jnz .alloc
		550
		551	.done:
		552	mov ecx, pg_data.mutex
		553	call mutex_unlock
		554	mov eax, [process]
		555	ret
		556	.fail:
		557	mov ecx, pg_data.mutex
		558	call mutex_unlock
		559	cmp [process], 0
		560	je @f
		561	;; stdcall destroy_app_space, [dir_addr], 0
		562	@@:
		563	xor eax, eax
		564	ret
		565	endp
		566
		567	align 4
		568	set_cr3:
4432	Serge	569	pushfd
		570	cli
4429	Serge	571	mov ebx, [current_slot]
4432	Serge	572	mov [current_process], eax
4429	Serge	573	mov [ebx+APPDATA.process], eax
		574	mov eax, [eax+PROC.pdt_0_phys]
		575	mov cr3, eax
4432	Serge	576	popfd
4429	Serge	577	ret
		578
		579	align 4
		580	proc destroy_page_table stdcall, pg_tab:dword
		581
		582	push esi
		583
		584	mov esi, [pg_tab]
		585	mov ecx, 1024
		586	.free:
		587	mov eax, [esi]
		588	test eax, 1
		589	jz .next
4459	Serge	590	test eax, 2
		591	jz .next
4429	Serge	592	test eax, 1 shl 9
		593	jnz .next ;skip shared pages
		594	call free_page
		595	.next:
		596	add esi, 4
		597	dec ecx
		598	jnz .free
		599	pop esi
		600	ret
		601	endp
		602
		603	align 4
4459	Serge	604	destroy_process: ;fastcall ecx= ptr to process
4429	Serge	605
4459	Serge	606	lea eax, [ecx+PROC.thr_list]
		607	cmp eax, [eax+LHEAD.next]
		608	jne .exit
4429	Serge	609
4459	Serge	610	align 4
		611	.internal:
		612	push ecx
4429	Serge	613
4459	Serge	614	mov esi, [ecx+PROC.dlls_list_ptr]
		615	call destroy_all_hdlls
4429	Serge	616
4459	Serge	617	; mov ecx, pg_data.mutex
		618	; call mutex_lock
		619
		620	mov esi, [esp]
		621	add esi, PROC.pdt_0
		622	mov edi, (0x80000000 shr 20)/4
4429	Serge	623	.destroy:
		624	mov eax, [esi]
		625	test eax, 1
		626	jz .next
		627	and eax, not 0xFFF
		628	stdcall map_page, [tmp_task_ptab], eax, PG_SW
		629	stdcall destroy_page_table, [tmp_task_ptab]
		630	mov eax, [esi]
		631	call free_page
		632	.next:
		633	add esi, 4
		634	dec edi
		635	jnz .destroy
		636
4459	Serge	637	call kernel_free ;ecx still in stack
		638	stdcall map_page, [tmp_task_ptab], 0, PG_UNMAP
		639	; mov ecx, pg_data.mutex
		640	; call mutex_unlock
		641
4429	Serge	642	.exit:
		643	ret
		644
		645	align 4
		646	get_pid:
		647	mov eax, [TASK_BASE]
		648	mov eax, [eax+TASKDATA.pid]
		649	ret
		650
		651	pid_to_slot:
		652	;Input:
		653	; eax - pid of process
		654	;Output:
		655	; eax - slot of process or 0 if process don't exists
		656	;Search process by PID.
		657	push ebx
		658	push ecx
		659	mov ebx, [TASK_COUNT]
		660	shl ebx, 5
		661	mov ecx, 2*32
		662
		663	.loop:
		664	;ecx=offset of current process info entry
		665	;ebx=maximum permitted offset
		666	cmp byte [CURRENT_TASK+ecx+0xa], 9
		667	jz .endloop ;skip empty slots
		668	cmp [CURRENT_TASK+ecx+0x4], eax;check PID
		669	jz .pid_found
		670	.endloop:
		671	add ecx, 32
		672	cmp ecx, ebx
		673	jle .loop
		674
		675	pop ecx
		676	pop ebx
		677	xor eax, eax
		678	ret
		679
		680	.pid_found:
		681	shr ecx, 5
		682	mov eax, ecx ;convert offset to index of slot
		683	pop ecx
		684	pop ebx
		685	ret
		686
		687	check_region:
		688	;input:
		689	; esi - start of buffer
		690	; edx - size of buffer
		691	;result:
		692	; eax = 1 region lays in app memory
		693	; eax = 0 region don't lays in app memory
		694	mov eax, [CURRENT_TASK]
		695	; jmp check_process_region
		696	;-----------------------------------------------------------------------------
		697	;check_process_region:
		698	;input:
		699	; eax - slot
		700	; esi - start of buffer
		701	; edx - size of buffer
		702	;result:
		703	; eax = 1 region lays in app memory
		704	; eax = 0 region don't lays in app memory
		705
		706	test edx, edx
		707	jle .ok
		708	shl eax, 5
		709	cmp word [CURRENT_TASK+eax+0xa], 0
		710	jnz .failed
		711	shl eax, 3
		712	mov eax, [SLOT_BASE+eax+0xb8]
		713	test eax, eax
		714	jz .failed
		715
		716	mov eax, 1
		717	ret
		718
		719
		720	; call MEM_Get_Linear_Address
		721	; push ebx
		722	; push ecx
		723	; push edx
		724	; mov edx,ebx
		725	; and edx,not (4096-1)
		726	; sub ebx,edx
		727	; add ecx,ebx
		728	; mov ebx,edx
		729	; add ecx,(4096-1)
		730	; and ecx,not (4096-1)
		731	;.loop:
		732	;;eax - linear address of page directory
		733	;;ebx - current page
		734	;;ecx - current size
		735	; mov edx,ebx
		736	; shr edx,22
		737	; mov edx,[eax+4*edx]
		738	; and edx,not (4096-1)
		739	; test edx,edx
		740	; jz .failed1
		741	; push eax
		742	; mov eax,edx
		743	; call MEM_Get_Linear_Address
		744	; mov edx,ebx
		745	; shr edx,12
		746	; and edx,(1024-1)
		747	; mov eax,[eax+4*edx]
		748	; and eax,not (4096-1)
		749	; test eax,eax
		750	; pop eax
		751	; jz .failed1
		752	; add ebx,4096
		753	; sub ecx,4096
		754	; jg .loop
		755	; pop edx
		756	; pop ecx
		757	; pop ebx
		758	.ok:
		759	mov eax, 1
		760	ret
		761	;
		762	;.failed1:
		763	; pop edx
		764	; pop ecx
		765	; pop ebx
		766	.failed:
		767	xor eax, eax
		768	ret
		769
		770	align 4
		771	proc read_process_memory
		772	;Input:
		773	; eax - process slot
		774	; ecx - buffer address
		775	; edx - buffer size
		776	; esi - start address in other process
		777	;Output:
		778	; eax - number of bytes read.
		779	locals
		780	slot dd ?
		781	buff dd ?
		782	r_count dd ?
		783	offset dd ?
		784	tmp_r_cnt dd ?
		785	endl
		786
		787	mov [slot], eax
		788	mov [buff], ecx
		789	and [r_count], 0
		790	mov [tmp_r_cnt], edx
		791	mov [offset], esi
		792
		793	pushad
		794	.read_mem:
		795	mov edx, [offset]
		796	mov ebx, [tmp_r_cnt]
		797
		798	mov ecx, 0x400000
		799	and edx, 0x3FFFFF
		800	sub ecx, edx
		801	cmp ecx, ebx
		802	jbe @f
		803	mov ecx, ebx
		804	@@:
		805	cmp ecx, 0x8000
		806	jna @F
		807	mov ecx, 0x8000
		808	@@:
		809	mov ebx, [offset]
		810
		811	push ecx
		812	stdcall map_memEx, [proc_mem_map], \
		813	[slot], ebx, ecx, PG_MAP
		814	pop ecx
		815
		816	mov esi, [offset]
		817	and esi, 0xfff
		818	sub eax, esi
		819	jbe .ret
		820	cmp ecx, eax
		821	jbe @f
		822	mov ecx, eax
		823	mov [tmp_r_cnt], eax
		824	@@:
		825	add esi, [proc_mem_map]
		826	mov edi, [buff]
		827	mov edx, ecx
		828	rep movsb
		829	add [r_count], edx
		830
		831	add [offset], edx
		832	sub [tmp_r_cnt], edx
		833	jnz .read_mem
		834	.ret:
		835	popad
		836	mov eax, [r_count]
		837	ret
		838	endp
		839
		840	align 4
		841	proc write_process_memory
		842	;Input:
		843	; eax - process slot
		844	; ecx - buffer address
		845	; edx - buffer size
		846	; esi - start address in other process
		847	;Output:
		848	; eax - number of bytes written
		849
		850	locals
		851	slot dd ?
		852	buff dd ?
		853	w_count dd ?
		854	offset dd ?
		855	tmp_w_cnt dd ?
		856	endl
		857
		858	mov [slot], eax
		859	mov [buff], ecx
		860	and [w_count], 0
		861	mov [tmp_w_cnt], edx
		862	mov [offset], esi
		863
		864	pushad
		865	.read_mem:
		866	mov edx, [offset]
		867	mov ebx, [tmp_w_cnt]
		868
		869	mov ecx, 0x400000
		870	and edx, 0x3FFFFF
		871	sub ecx, edx
		872	cmp ecx, ebx
		873	jbe @f
		874	mov ecx, ebx
		875	@@:
		876	cmp ecx, 0x8000
		877	jna @F
		878	mov ecx, 0x8000
		879	@@:
		880	mov ebx, [offset]
		881	; add ebx, new_app_base
		882	push ecx
		883	stdcall map_memEx, [proc_mem_map], \
		884	[slot], ebx, ecx, PG_SW
		885	pop ecx
		886
		887	mov edi, [offset]
		888	and edi, 0xfff
		889	sub eax, edi
		890	jbe .ret
		891	cmp ecx, eax
		892	jbe @f
		893	mov ecx, eax
		894	mov [tmp_w_cnt], eax
		895	@@:
		896	add edi, [proc_mem_map]
		897	mov esi, [buff]
		898	mov edx, ecx
		899	rep movsb
		900
		901	add [w_count], edx
		902	add [offset], edx
		903	sub [tmp_w_cnt], edx
		904	jnz .read_mem
		905	.ret:
		906	popad
		907	mov eax, [w_count]
		908	ret
		909	endp
		910
		911	;ebx = 1 - kernel thread
		912	;ecx=thread entry point
		913	;edx=thread stack pointer
		914	;creation flags 0x01 - debugged
		915	; 0x02 - kernel
		916
		917	align 4
		918	proc new_sys_threads
		919	locals
		920	slot dd ?
		921	flags dd ?
		922	app_cmdline dd ? ;0x00
		923	app_path dd ? ;0x04
		924	app_eip dd ? ;0x08
		925	app_esp dd ? ;0x0C
		926	app_mem dd ? ;0x10
		927	endl
		928
		929	shl ebx, 1
		930	mov [flags], ebx
		931
		932	xor eax, eax
		933	mov [app_eip], ecx
		934	mov [app_cmdline], eax
		935	mov [app_esp], edx
		936	mov [app_path], eax
		937
		938	call lock_application_table
		939
		940	call alloc_thread_slot
		941	test eax, eax
		942	jz .failed
		943
		944	mov [slot], eax
		945
		946	mov esi, [current_slot]
		947	mov ebx, esi ;ebx=esi - pointer to extended information about current thread
		948
		949	mov edi, eax
		950	shl edi, 8
		951	add edi, SLOT_BASE
		952	mov edx, edi ;edx=edi - pointer to extended infomation about new thread
		953	mov ecx, 256/4
		954	xor eax, eax
		955	cld
		956	rep stosd ;clean extended information about new thread
		957	mov esi, ebx
		958	mov edi, edx
		959	mov ecx, 11
		960	rep movsb ;copy process name
		961
4430	Serge	962	mov eax, [ebx+APPDATA.process]
		963	mov [edx+APPDATA.process], eax
4429	Serge	964
4457	Serge	965	lea ebx, [edx+APPDATA.list]
		966	lea ecx, [eax+PROC.thr_list]
4459	Serge	967	list_add_tail ebx, ecx ;add thread to process child's list
4457	Serge	968
4429	Serge	969	mov eax, [ebx+APPDATA.tls_base]
		970	test eax, eax
		971	jz @F
		972
		973	push edx
		974	stdcall user_alloc, 4096
		975	pop edx
		976	test eax, eax
		977	jz .failed1;eax=0
		978	@@:
		979	mov [edx+APPDATA.tls_base], eax
		980
		981	lea eax, [app_cmdline]
		982	stdcall set_app_params , [slot], eax, dword 0, \
		983	dword 0, [flags]
		984
		985	mov eax, [process_number] ;set result
		986	call unlock_application_table
		987	ret
		988	.failed:
		989	xor eax, eax
		990	.failed1:
		991	call unlock_application_table
		992	dec eax ;-1
		993	ret
		994	endp
		995
		996	align 4
		997	tls_app_entry:
		998
		999	call init_heap
		1000	stdcall user_alloc, 4096
		1001
		1002	mov edx, [current_slot]
		1003	mov [edx+APPDATA.tls_base], eax
		1004	mov [tls_data_l+2], ax
		1005	shr eax, 16
		1006	mov [tls_data_l+4], al
		1007	mov [tls_data_l+7], ah
		1008	mov dx, app_tls
		1009	mov fs, dx
		1010	popad
		1011	iretd
		1012
		1013
		1014	EFL_IF equ 0x0200
		1015	EFL_IOPL1 equ 0x1000
		1016	EFL_IOPL2 equ 0x2000
		1017	EFL_IOPL3 equ 0x3000
		1018
		1019
		1020	align 4
		1021	proc set_app_params stdcall,slot:dword, params:dword,\
		1022	cmd_line:dword, app_path:dword, flags:dword
		1023
		1024	locals
		1025	pl0_stack dd ?
		1026	endl
		1027
		1028	stdcall kernel_alloc, RING0_STACK_SIZE+512
		1029	mov [pl0_stack], eax
		1030
		1031	lea edi, [eax+RING0_STACK_SIZE]
		1032
		1033	mov eax, [slot]
		1034	mov ebx, eax
		1035
		1036	shl eax, 8
		1037	mov [eax+SLOT_BASE+APPDATA.fpu_state], edi
		1038	mov [eax+SLOT_BASE+APPDATA.exc_handler], 0
		1039	mov [eax+SLOT_BASE+APPDATA.except_mask], 0
		1040	mov [eax+SLOT_BASE+APPDATA.terminate_protection], 80000001h
		1041
		1042	;set default io permission map
		1043	mov ecx, [SLOT_BASE+256+APPDATA.io_map]
		1044	mov [eax+SLOT_BASE+APPDATA.io_map], ecx
		1045	mov ecx, [SLOT_BASE+256+APPDATA.io_map+4]
		1046	mov [eax+SLOT_BASE+APPDATA.io_map+4], ecx
		1047
		1048	mov esi, fpu_data
		1049	mov ecx, 512/4
		1050	rep movsd
		1051
		1052	cmp ebx, [TASK_COUNT]
		1053	jle .noinc
		1054	inc dword [TASK_COUNT] ;update number of processes
		1055	.noinc:
		1056	shl ebx, 8
		1057	lea edx, [ebx+SLOT_BASE+APP_EV_OFFSET]
		1058	mov [SLOT_BASE+APPDATA.fd_ev+ebx], edx
		1059	mov [SLOT_BASE+APPDATA.bk_ev+ebx], edx
		1060
		1061	add edx, APP_OBJ_OFFSET-APP_EV_OFFSET
		1062	mov [SLOT_BASE+APPDATA.fd_obj+ebx], edx
		1063	mov [SLOT_BASE+APPDATA.bk_obj+ebx], edx
		1064
		1065	mov ecx, [def_cursor]
		1066	mov [SLOT_BASE+APPDATA.cursor+ebx], ecx
		1067	mov eax, [pl0_stack]
		1068	mov [SLOT_BASE+APPDATA.pl0_stack+ebx], eax
		1069	add eax, RING0_STACK_SIZE
		1070	mov [SLOT_BASE+APPDATA.saved_esp0+ebx], eax
		1071
		1072	push ebx
		1073	stdcall kernel_alloc, 0x1000
		1074	pop ebx
		1075	mov esi, [current_slot]
		1076	mov esi, [esi+APPDATA.cur_dir]
		1077	mov ecx, 0x1000/4
		1078	mov edi, eax
		1079	mov [ebx+SLOT_BASE+APPDATA.cur_dir], eax
		1080	rep movsd
		1081
		1082	shr ebx, 3
		1083	mov eax, new_app_base
		1084	mov dword [CURRENT_TASK+ebx+0x10], eax
		1085
		1086	.add_command_line:
		1087	mov edx, [params]
		1088	mov edx, [edx] ;app_cmdline
		1089	test edx, edx
		1090	jz @f ;application doesn't need parameters
		1091
		1092	mov eax, edx
		1093	add eax, 256
		1094	jc @f
		1095
4430	Serge	1096	; cmp eax, [SLOT_BASE+APPDATA.mem_size+ebx*8]
		1097	; ja @f
4429	Serge	1098
		1099	mov eax, [cmd_line]
		1100
		1101	cmp [edx], dword 0xffffffff ; extended destination tag
		1102	jne .no_ext_dest
		1103
		1104	mov edx, [edx+4] ; extended destination for cmdline
		1105	jmp .continue
		1106
		1107	.no_ext_dest:
		1108	mov [eax-12], dword 255
		1109	.continue:
		1110	mov byte [edx], 0 ;force empty string if no cmdline given
		1111
		1112	test eax, eax
		1113	jz @f
		1114	;--------------------------------------
		1115	cmp [eax-4], dword 0xffffffff ; cmdline_flag
		1116	jne .old_copy
		1117
		1118	push eax
		1119	stdcall strncpy, edx, [eax-8], [eax-12]
		1120	pop eax
		1121
		1122	stdcall kernel_free, [eax-8]
		1123	jmp @f
		1124
		1125	.old_copy:
		1126	;--------------------------------------
		1127	stdcall strncpy, edx, eax, 256
		1128	@@:
		1129	mov edx, [params]
		1130	mov edx, [edx+4];app_path
		1131	test edx, edx
		1132	jz @F ;application don't need path of file
		1133	mov eax, edx
		1134	add eax, 1024
		1135	jc @f
4430	Serge	1136	; cmp eax, [SLOT_BASE+APPDATA.mem_size+ebx*8]
		1137	; ja @f
4429	Serge	1138	stdcall strncpy, edx, [app_path], 1024
		1139	@@:
		1140	mov ebx, [slot]
		1141	mov eax, ebx
		1142	shl ebx, 5
		1143	lea ecx, [draw_data+ebx];ecx - pointer to draw data
		1144
		1145	mov edx, irq0.return
		1146	cmp [ebx*8+SLOT_BASE+APPDATA.tls_base], -1
		1147	jne @F
		1148	mov edx, tls_app_entry
		1149	@@:
		1150	; set window state to 'normal' (non-minimized/maximized/rolled-up) state
		1151	mov [ebx+window_data+WDATA.fl_wstate], WSTATE_NORMAL
		1152	mov [ebx+window_data+WDATA.fl_redraw], 1
		1153	add ebx, CURRENT_TASK ;ebx - pointer to information about process
		1154	mov [ebx+TASKDATA.wnd_number], al;set window number on screen = process slot
		1155
		1156	mov [ebx+TASKDATA.event_mask], dword 1+2+4;set default event flags (see 40 function)
		1157
		1158	inc dword [process_number]
		1159	mov eax, [process_number]
		1160	mov [ebx+4], eax ;set PID
		1161
		1162	;set draw data to full screen
		1163	xor eax, eax
		1164	mov [ecx+0], dword eax
		1165	mov [ecx+4], dword eax
		1166	mov eax, [Screen_Max_X]
		1167	mov [ecx+8], eax
		1168	mov eax, [Screen_Max_Y]
		1169	mov [ecx+12], eax
		1170
		1171	mov ebx, [pl0_stack]
		1172	mov esi, [params]
		1173	lea ecx, [ebx+REG_EIP]
		1174	xor eax, eax
		1175
		1176	mov [ebx+REG_RET], edx
		1177	mov [ebx+REG_EDI], eax
		1178	mov [ebx+REG_ESI], eax
		1179	mov [ebx+REG_EBP], eax
		1180	mov [ebx+REG_ESP], ecx;ebx+REG_EIP
		1181	mov [ebx+REG_EBX], eax
		1182	mov [ebx+REG_EDX], eax
		1183	mov [ebx+REG_ECX], eax
		1184	mov [ebx+REG_EAX], eax
		1185
		1186	mov eax, [esi+0x08] ;app_eip
		1187	mov [ebx+REG_EIP], eax ;app_entry
		1188	mov [ebx+REG_CS], dword app_code
		1189	mov ecx, USER_PRIORITY
		1190
		1191	test byte [flags], 2
		1192	jz @F
		1193
		1194	mov [ebx+REG_CS], dword os_code ; kernel thread
		1195	mov ecx, MAX_PRIORITY
		1196
		1197	@@:
		1198	mov [ebx+REG_EFLAGS], dword EFL_IOPL1+EFL_IF
		1199
		1200	mov eax, [esi+0x0C] ;app_esp
		1201	mov [ebx+REG_APP_ESP], eax;app_stack
		1202	mov [ebx+REG_SS], dword app_data
		1203
		1204	lea edx, [ebx+REG_RET]
		1205	mov ebx, [slot]
		1206	shl ebx, 5
		1207	mov [ebx*8+SLOT_BASE+APPDATA.saved_esp], edx
		1208
		1209	xor edx, edx; process state - running
		1210	; set if debuggee
		1211	test byte [flags], 1
		1212	jz .no_debug
		1213	inc edx ; process state - suspended
		1214	mov eax, [CURRENT_TASK]
		1215	mov [SLOT_BASE+ebx*8+APPDATA.debugger_slot], eax
		1216	.no_debug:
		1217	mov [CURRENT_TASK+ebx+TASKDATA.state], dl
		1218	lea edx, [SLOT_BASE+ebx*8]
		1219	call scheduler_add_thread
		1220	ret
		1221	endp
		1222
		1223
		1224	align 4
		1225
		1226	get_stack_base:
		1227	mov eax, [current_slot]
		1228	mov eax, [eax+APPDATA.pl0_stack]
		1229	ret
		1230
		1231
		1232	include "debug.inc"

Subversion Repositories Kolibri OS

(root)/kernel/branches/kolibri-process/core/taskman.inc – Rev 4459