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

Rev	Author	Line No.	Line
425	victor	1	$Revision: 488 $
431	serge	2	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		3	;; ;;
		4	;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
		5	;; Distributed under terms of the GNU General Public License ;;
		6	;; ;;
		7	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
164	serge	8
465	serge	9	DRV_COMPAT equ 5 ;minimal required drivers version
		10	DRV_CURRENT equ 5 ;current drivers model version
214	serge	11
227	serge	12	DRV_VERSION equ (DRV_COMPAT shl 16) or DRV_CURRENT
		13
164	serge	14	align 4
		15	proc attach_int_handler stdcall, irq:dword, handler:dword
		16
		17	mov ebx, [irq] ;irq num
		18	test ebx, ebx
		19	jz .err
		20	mov eax, [handler]
		21	test eax, eax
		22	jz .err
		23	mov [irq_tab+ebx*4], eax
		24	stdcall enable_irq, [irq]
		25	ret
		26	.err:
		27	xor eax, eax
		28	ret
		29	endp
		30
		31	align 4
		32	proc detach_int_handler
		33
		34	ret
		35	endp
		36
		37	align 4
		38	proc enable_irq stdcall, irq_line:dword
		39	mov ebx, [irq_line]
		40	mov edx, 0x21
		41	cmp ebx, 8
		42	jb @F
		43	mov edx, 0xA1
		44	sub ebx,8
		45	@@:
		46	in al,dx
		47	btr eax, ebx
		48	out dx, al
		49	ret
		50	endp
		51
		52	align 16
		53	;; proc irq_serv
		54
		55	irq_serv:
		56
		57	.irq_1:
		58	push eax
		59	mov eax, 1
		60	jmp .main
		61	align 4
		62	.irq_2:
		63	push eax
		64	mov eax, 2
		65	jmp .main
		66	align 4
		67	.irq_3:
		68	push eax
		69	mov eax, 3
		70	jmp .main
		71	align 4
		72	.irq_4:
		73	push eax
		74	mov eax, 4
		75	jmp .main
		76	align 4
		77	.irq_5:
		78	push eax
		79	mov eax, 5
		80	jmp .main
		81	align 4
		82	.irq_6:
		83	push eax
		84	mov eax, 6
		85	jmp .main
		86	align 4
		87	.irq_7:
		88	push eax
		89	mov eax, 7
		90	jmp .main
		91	align 4
		92	.irq_8:
		93	push eax
		94	mov eax, 8
		95	jmp .main
		96	align 4
		97	.irq_9:
		98	push eax
		99	mov eax, 9
		100	jmp .main
		101	align 4
		102	.irq_10:
		103	push eax
		104	mov eax, 10
		105	jmp .main
		106	align 4
		107	.irq_11:
		108	push eax
		109	mov eax, 11
		110	jmp .main
		111	align 4
		112	.irq_12:
		113	push eax
		114	mov eax, 12
		115	jmp .main
		116	align 4
		117	.irq_13:
		118	push eax
		119	mov eax, 13
		120	jmp .main
		121	align 4
		122	.irq_14:
		123	push eax
		124	mov eax, 14
		125	jmp .main
		126	align 4
		127	.irq_15:
		128	push eax
		129	mov eax, 15
		130	jmp .main
		131
		132	align 16
		133	.main:
		134	save_ring3_context
465	serge	135	mov bx, app_data ;os_data
164	serge	136	mov ds, bx
		137	mov es, bx
		138
		139	mov ebx, [irq_tab+eax*4]
		140	test ebx, ebx
		141	jz .exit
		142
		143	call ebx
479	kastigar	144	mov [check_idle_semaphore],5
164	serge	145
		146	.exit:
		147	restore_ring3_context
		148
		149	cmp eax, 8
		150	mov al, 0x20
		151	jb @f
		152	out 0xa0, al
		153	@@:
		154	out 0x20, al
		155
		156	pop eax
		157	iret
		158
		159	align 4
		160	proc get_notify stdcall, p_ev:dword
		161
		162	.wait:
465	serge	163	mov ebx,[current_slot]
		164	test dword [ebx+APPDATA.event_mask],EVENT_NOTIFY
164	serge	165	jz @f
465	serge	166	and dword [ebx+APPDATA.event_mask], not EVENT_NOTIFY
164	serge	167	mov edi, [p_ev]
		168	mov dword [edi], EV_INTR
465	serge	169	mov eax, [ebx+APPDATA.event]
164	serge	170	mov dword [edi+4], eax
		171	ret
		172	@@:
		173	call change_task
		174	jmp .wait
		175	endp
		176
		177	align 4
		178	proc pci_read32 stdcall, bus:dword, devfn:dword, reg:dword
		179	xor eax, eax
		180	xor ebx, ebx
		181	mov ah, byte [bus]
		182	mov al, 6
		183	mov bh, byte [devfn]
		184	mov bl, byte [reg]
		185	call pci_read_reg
		186	ret
		187	endp
		188
		189	align 4
		190	proc pci_read8 stdcall, bus:dword, devfn:dword, reg:dword
		191	xor eax, eax
		192	xor ebx, ebx
		193	mov ah, byte [bus]
		194	mov al, 4
		195	mov bh, byte [devfn]
		196	mov bl, byte [reg]
		197	call pci_read_reg
		198	ret
		199	endp
		200
		201	align 4
		202	proc pci_write8 stdcall, bus:dword, devfn:dword, reg:dword, val:dword
		203	xor eax, eax
		204	xor ebx, ebx
		205	mov ah, byte [bus]
		206	mov al, 8
		207	mov bh, byte [devfn]
		208	mov bl, byte [reg]
		209	mov ecx, [val]
		210	call pci_write_reg
		211	ret
		212	endp
		213
		214	handle equ IOCTL.handle
		215	io_code equ IOCTL.io_code
		216	input equ IOCTL.input
		217	inp_size equ IOCTL.inp_size
		218	output equ IOCTL.output
		219	out_size equ IOCTL.out_size
		220
		221
		222	align 4
		223	proc srv_handler stdcall, ioctl:dword
		224	mov esi, [ioctl]
		225	test esi, esi
		226	jz .err
		227
		228	mov edi, [esi+handle]
		229	cmp [edi+SRV.magic], ' SRV'
		230	jne .fail
		231
		232	cmp [edi+SRV.size], SRV_SIZE
		233	jne .fail
		234
		235	stdcall [edi+SRV.srv_proc], esi
		236	ret
		237	.fail:
		238	xor eax, eax
		239	not eax
		240	mov [esi+output], eax
		241	mov [esi+out_size], 4
		242	ret
		243	.err:
		244	xor eax, eax
		245	not eax
		246	ret
		247	endp
		248
377	serge	249	; param
		250	; ebx= io_control
		251	;
		252	; retval
		253	; eax= error code
		254
164	serge	255	align 4
377	serge	256	srv_handlerEx:
465	serge	257	cmp ebx, OS_BASE
		258	jae .fail
164	serge	259
377	serge	260	mov eax, [ebx+handle]
		261	cmp [eax+SRV.magic], ' SRV'
164	serge	262	jne .fail
		263
377	serge	264	cmp [eax+SRV.size], SRV_SIZE
164	serge	265	jne .fail
		266
377	serge	267	stdcall [eax+SRV.srv_proc], ebx
164	serge	268	ret
		269	.fail:
377	serge	270	or eax, -1
164	serge	271	ret
		272
		273	restore handle
		274	restore io_code
		275	restore input
		276	restore inp_size
		277	restore output
		278	restore out_size
		279
		280	align 4
		281	proc get_service stdcall, sz_name:dword
188	serge	282	mov eax, [sz_name]
		283	test eax, eax
		284	jnz @F
		285	ret
164	serge	286	@@:
278	serge	287	mov edx, [srv.fd]
188	serge	288	@@:
278	serge	289	cmp edx, srv.fd-SRV_FD_OFFSET
		290	je .not_load
		291
		292	stdcall strncmp, edx, [sz_name], 16
188	serge	293	test eax, eax
		294	je .ok
164	serge	295
278	serge	296	mov edx, [edx+SRV.fd]
		297	jmp @B
164	serge	298	.not_load:
346	diamond	299	pop ebp
		300	jmp load_driver
164	serge	301	.ok:
278	serge	302	mov eax, edx
188	serge	303	ret
164	serge	304	endp
		305
		306	align 4
278	serge	307	reg_service:
		308	.sz_name equ esp+4
		309	.handler equ esp+8
		310	mov eax, [.sz_name]
164	serge	311	test eax, eax
		312	jz .fail
		313
278	serge	314	mov ebx, [.handler]
164	serge	315	test ebx, ebx
		316	jz .fail
		317
278	serge	318	mov eax, SRV_SIZE
		319	call malloc ;call alloc_service
164	serge	320	test eax, eax
		321	jz .fail
		322
		323	mov edi, eax
278	serge	324	mov esi, [.sz_name]
		325	mov ecx, 16/4
		326	rep movsd
164	serge	327
278	serge	328	mov [eax+SRV.magic], ' SRV'
		329	mov [eax+SRV.size], SRV_SIZE
		330
		331	mov ebx, srv.fd-SRV_FD_OFFSET
		332	mov edx, [ebx+SRV.fd]
		333	mov [eax+SRV.fd], edx
		334	mov [eax+SRV.bk], ebx
		335	mov [ebx+SRV.fd], eax
		336	mov [edx+SRV.bk], eax
		337
		338	mov ecx, [.handler]
		339	mov [eax+SRV.srv_proc], ecx
281	serge	340	ret 8
164	serge	341	.fail:
		342	xor eax, eax
281	serge	343	ret 8
164	serge	344
		345	align 4
		346	proc get_proc stdcall, exp:dword, sz_name:dword
		347
		348	mov edx, [exp]
		349	.next:
		350	mov eax, [edx]
		351	test eax, eax
		352	jz .end
		353
		354	push edx
		355	stdcall strncmp, eax, [sz_name], 16
		356	pop edx
		357	test eax, eax
		358	jz .ok
		359
		360	add edx,8
		361	jmp .next
		362	.ok:
		363	mov eax, [edx+4]
		364	.end:
		365	ret
		366	endp
		367
		368	align 4
		369	proc get_coff_sym stdcall, pSym:dword,count:dword, sz_sym:dword
		370
		371	@@:
		372	stdcall strncmp, [pSym], [sz_sym], 8
		373	test eax,eax
		374	jz .ok
		375	add [pSym], 18
		376	dec [count]
		377	jnz @b
		378	xor eax, eax
		379	ret
		380	.ok:
		381	mov ebx, [pSym]
		382	mov eax, [ebx+8]
		383	ret
		384	endp
		385
		386	align 4
188	serge	387	proc get_curr_task
		388	mov eax,[CURRENT_TASK]
		389	shl eax, 8
		390	ret
		391	endp
164	serge	392
188	serge	393	align 4
		394	proc get_fileinfo stdcall, file_name:dword, info:dword
		395	locals
		396	cmd dd ?
		397	offset dd ?
		398	dd ?
		399	count dd ?
		400	buff dd ?
		401	db ?
		402	name dd ?
		403	endl
164	serge	404
188	serge	405	xor eax, eax
		406	mov ebx, [file_name]
465	serge	407	; sub ebx, new_app_base
188	serge	408	mov ecx, [info]
465	serge	409	; sub ecx, new_app_base
164	serge	410
188	serge	411	mov [cmd], 5
		412	mov [offset], eax
		413	mov [offset+4], eax
		414	mov [count], eax
		415	mov [buff], ecx
		416	mov byte [buff+4], al
		417	mov [name], ebx
164	serge	418
188	serge	419	mov eax, 70
		420	lea ebx, [cmd]
465	serge	421	; sub ebx, new_app_base
188	serge	422	int 0x40
		423	ret
		424	endp
164	serge	425
188	serge	426	align 4
		427	proc read_file stdcall,file_name:dword, buffer:dword, off:dword,\
		428	bytes:dword
		429	locals
		430	cmd dd ?
		431	offset dd ?
		432	dd ?
		433	count dd ?
		434	buff dd ?
		435	db ?
		436	name dd ?
		437	endl
164	serge	438
188	serge	439	xor eax, eax
		440	mov ebx, [file_name]
		441	mov ecx, [off]
		442	mov edx, [bytes]
		443	mov esi, [buffer]
164	serge	444
188	serge	445	mov [cmd], eax
		446	mov [offset], ecx
		447	mov [offset+4], eax
		448	mov [count], edx
		449	mov [buff], esi
		450	mov byte [buff+4], al
		451	mov [name], ebx
		452
429	serge	453	pushad
		454	push eax
		455	lea eax, [cmd]
		456	call file_system_lfn
		457	pop eax
		458	popad
188	serge	459	ret
		460	endp
		461
363	serge	462	; description
		463	; allocate kernel memory and loads the specified file
		464	;
		465	; param
		466	; file_name= full path to file
		467	;
		468	; retval
		469	; eax= file image in kernel memory
		470	; ebx= size of file
		471	;
		472	; warging
		473	; You mast call kernel_free() to delete each file
		474	; loaded by the load_file() function
		475
188	serge	476	align 4
		477	proc load_file stdcall, file_name:dword
		478	locals
		479	attr dd ?
		480	flags dd ?
		481	cr_time dd ?
		482	cr_date dd ?
		483	acc_time dd ?
		484	acc_date dd ?
		485	mod_time dd ?
		486	mod_date dd ?
		487	file_size dd ?
		488
		489	file dd ?
211	serge	490	file2 dd ?
188	serge	491	endl
		492
		493	lea eax, [attr]
		494	stdcall get_fileinfo, [file_name], eax
164	serge	495	test eax, eax
188	serge	496	jnz .fail
164	serge	497
206	serge	498	mov eax, [file_size]
237	serge	499	cmp eax, 1024102416
		500	ja .fail
206	serge	501
188	serge	502	stdcall kernel_alloc, [file_size]
		503	mov [file], eax
164	serge	504
188	serge	505	stdcall read_file, [file_name], eax, dword 0, [file_size]
		506	cmp ebx, [file_size]
		507	jne .cleanup
211	serge	508
188	serge	509	mov eax, [file]
211	serge	510	cmp dword [eax], 0x4B43504B
		511	jne .exit
237	serge	512	mov ebx, [eax+4]
		513	mov [file_size], ebx
		514	stdcall kernel_alloc, ebx
211	serge	515
		516	test eax, eax
		517	jz .cleanup
		518
		519	mov [file2], eax
		520	stdcall unpack, [file], eax
		521	stdcall kernel_free, [file]
		522	mov eax, [file2]
237	serge	523	mov ebx, [file_size]
211	serge	524	.exit:
269	serge	525	push eax
		526	lea edi, [eax+ebx] ;cleanup remain space
357	serge	527	mov ecx, 4096 ;from file end
		528	and ebx, 4095
269	serge	529	sub ecx, ebx
		530	xor eax, eax
		531	cld
		532	rep stosb
357	serge	533	mov ebx, [file_size]
269	serge	534	pop eax
188	serge	535	ret
		536	.cleanup:
		537	stdcall kernel_free, [file]
		538	.fail:
		539	xor eax, eax
237	serge	540	xor ebx, ebx
188	serge	541	ret
		542	endp
164	serge	543
188	serge	544	align 4
		545	proc get_proc_ex stdcall, proc_name:dword, imports:dword
		546
		547	.look_up:
		548	mov edx, [imports]
198	serge	549	test edx, edx
		550	jz .end
188	serge	551	mov edx, [edx]
		552	test edx, edx
		553	jz .end
		554	.next:
		555	mov eax, [edx]
164	serge	556	test eax, eax
188	serge	557	jz .next_table
164	serge	558
188	serge	559	push edx
		560	stdcall strncmp, eax, [proc_name], 16
		561	pop edx
		562	test eax, eax
		563	jz .ok
164	serge	564
188	serge	565	add edx,8
		566	jmp .next
		567	.next_table:
		568	add [imports], 4
		569	jmp .look_up
		570	.ok:
		571	mov eax, [edx+4]
		572	ret
		573	.end:
		574	xor eax, eax
		575	ret
		576	endp
164	serge	577
188	serge	578	align 4
		579	proc fix_coff_symbols stdcall, sec:dword, symbols:dword,\
		580	sym_count:dword, strings:dword, imports:dword
		581	locals
		582	retval dd ?
		583	endl
164	serge	584
188	serge	585	mov edi, [symbols]
		586	mov [retval], 1
		587	.fix:
		588	movzx ebx, [edi+CSYM.SectionNumber]
		589	test ebx, ebx
		590	jnz .internal
		591	mov eax, dword [edi+CSYM.Name]
		592	test eax, eax
		593	jnz @F
164	serge	594
188	serge	595	mov edi, [edi+4]
		596	add edi, [strings]
		597	@@:
		598	push edi
		599	stdcall get_proc_ex, edi,[imports]
		600	pop edi
164	serge	601
188	serge	602	xor ebx, ebx
		603	test eax, eax
		604	jnz @F
164	serge	605
188	serge	606	mov esi, msg_unresolved
		607	call sys_msg_board_str
		608	mov esi, edi
		609	call sys_msg_board_str
		610	mov esi, msg_CR
		611	call sys_msg_board_str
164	serge	612
188	serge	613	mov [retval],0
		614	@@:
		615	mov edi, [symbols]
		616	mov [edi+CSYM.Value], eax
		617	jmp .next
		618	.internal:
		619	dec ebx
		620	shl ebx, 3
		621	lea ebx, [ebx+ebx*4]
		622	add ebx, [sec]
		623
		624	mov eax, [ebx+CFS.VirtualAddress]
		625	add [edi+CSYM.Value], eax
		626	.next:
		627	add edi, CSYM_SIZE
		628	mov [symbols], edi
		629	dec [sym_count]
		630	jnz .fix
		631	mov eax, [retval]
		632	ret
164	serge	633	endp
		634
		635	align 4
188	serge	636	proc fix_coff_relocs stdcall, coff:dword, sec:dword, sym:dword
164	serge	637	locals
188	serge	638	n_sec dd ?
164	serge	639	endl
		640
188	serge	641	mov eax, [coff]
		642	movzx ebx, [eax+CFH.nSections]
		643	mov [n_sec], ebx
		644	.fix_sec:
		645	mov esi, [sec]
164	serge	646	mov edi, [esi+CFS.PtrReloc]
188	serge	647	add edi, [coff]
164	serge	648
188	serge	649	movzx ecx, [esi+CFS.NumReloc]
		650	test ecx, ecx
		651	jz .next
		652	.next_reloc:
164	serge	653	mov ebx, [edi+CRELOC.SymIndex]
		654	add ebx,ebx
		655	lea ebx,[ebx+ebx*8]
188	serge	656	add ebx, [sym]
164	serge	657
188	serge	658	mov edx, [ebx+CSYM.Value]
164	serge	659
188	serge	660	cmp [edi+CRELOC.Type], 6
		661	je .dir_32
164	serge	662
188	serge	663	cmp [edi+CRELOC.Type], 20
		664	jne .next_reloc
		665	.rel_32:
164	serge	666	mov eax, [edi+CRELOC.VirtualAddress]
188	serge	667	add eax, [esi+CFS.VirtualAddress]
		668	sub edx, eax
		669	sub edx, 4
		670	jmp .fix
		671	.dir_32:
		672	mov eax, [edi+CRELOC.VirtualAddress]
		673	add eax, [esi+CFS.VirtualAddress]
		674	.fix:
		675	add [eax], edx
		676	add edi, 10
		677	dec ecx
		678	jnz .next_reloc
		679	.next:
206	serge	680	add [sec], COFF_SECTION_SIZE
188	serge	681	dec [n_sec]
		682	jnz .fix_sec
164	serge	683	.exit:
		684	ret
		685	endp
		686
188	serge	687	align 4
346	diamond	688	proc load_driver stdcall, driver_name:dword
188	serge	689	locals
		690	coff dd ?
		691	sym dd ?
		692	strings dd ?
		693	img_size dd ?
		694	img_base dd ?
		695	start dd ?
		696
		697	exports dd ? ;fake exports table
		698	dd ?
346	diamond	699	file_name rb 14+16+4+1 ; '/rd/1/drivers/.obj'
188	serge	700	endl
		701
465	serge	702	lea edx, [file_name]
488	spraid	703	mov dword [edx], '%sys'
		704	mov dword [edx+4], '%/dr'
465	serge	705	mov dword [edx+8], 'iver'
		706	mov word [edx+12], 's/'
		707	mov esi, [driver_name]
		708	lea edi, [edx+14]
		709	mov ecx, 16
346	diamond	710	@@:
465	serge	711	lodsb
		712	test al, al
		713	jz @f
		714	stosb
		715	loop @b
346	diamond	716	@@:
465	serge	717	mov dword [edi], '.obj'
		718	mov byte [edi+4], 0
346	diamond	719	stdcall load_file, edx
214	serge	720
188	serge	721	test eax, eax
227	serge	722	jz .exit
188	serge	723
		724	mov [coff], eax
		725
		726	movzx ecx, [eax+CFH.nSections]
		727	xor ebx, ebx
		728
		729	lea edx, [eax+20]
		730	@@:
		731	add ebx, [edx+CFS.SizeOfRawData]
		732	add ebx, 15
		733	and ebx, not 15
206	serge	734	add edx, COFF_SECTION_SIZE
188	serge	735	dec ecx
		736	jnz @B
		737	mov [img_size], ebx
		738
		739	stdcall kernel_alloc, ebx
		740	test eax, eax
		741	jz .fail
		742	mov [img_base], eax
		743
		744	mov edi, eax
		745	xor eax, eax
		746	mov ecx, [img_size]
		747	add ecx, 4095
		748	and ecx, not 4095
		749	shr ecx, 2
		750	cld
		751	rep stosd
		752
		753	mov edx, [coff]
		754	movzx ebx, [edx+CFH.nSections]
		755	mov edi, [img_base]
		756	lea eax, [edx+20]
		757	@@:
		758	mov [eax+CFS.VirtualAddress], edi
		759	mov esi, [eax+CFS.PtrRawData]
		760	test esi, esi
		761	jnz .copy
		762	add edi, [eax+CFS.SizeOfRawData]
		763	jmp .next
		764	.copy:
		765	add esi, edx
		766	mov ecx, [eax+CFS.SizeOfRawData]
		767	cld
		768	rep movsb
		769	.next:
		770	add edi, 15
		771	and edi, not 15
206	serge	772	add eax, COFF_SECTION_SIZE
188	serge	773	dec ebx
		774	jnz @B
		775
		776	mov ebx, [edx+CFH.pSymTable]
		777	add ebx, edx
		778	mov [sym], ebx
		779	mov ecx, [edx+CFH.nSymbols]
		780	add ecx,ecx
		781	lea ecx,[ecx+ecx8] ;ecx=18 = nSymbols*CSYM_SIZE
		782	add ecx, [sym]
		783	mov [strings], ecx
		784
		785	lea ebx, [exports]
		786	mov dword [ebx], kernel_export
		787	mov dword [ebx+4], 0
		788	lea eax, [edx+20]
		789
		790	stdcall fix_coff_symbols, eax, [sym], [edx+CFH.nSymbols],\
		791	[strings], ebx
		792	test eax, eax
227	serge	793	jz .link_fail
188	serge	794
		795	mov ebx, [coff]
		796	add ebx, 20
		797	stdcall fix_coff_relocs, [coff], ebx, [sym]
		798
		799	mov ebx, [coff]
227	serge	800	stdcall get_coff_sym,[sym],[ebx+CFH.nSymbols],szVersion
		801	test eax, eax
		802	jz .link_fail
		803
		804	mov eax, [eax]
		805	shr eax, 16
		806	cmp eax, DRV_COMPAT
		807	jb .ver_fail
		808
		809	cmp eax, DRV_CURRENT
		810	ja .ver_fail
		811
		812	mov ebx, [coff]
188	serge	813	stdcall get_coff_sym,[sym],[ebx+CFH.nSymbols],szSTART
		814	mov [start], eax
		815
		816	stdcall kernel_free, [coff]
		817
		818	mov ebx, [start]
214	serge	819	stdcall ebx, DRV_ENTRY
188	serge	820	test eax, eax
		821	jnz .ok
		822
		823	stdcall kernel_free, [img_base]
		824	xor eax, eax
		825	ret
		826	.ok:
		827	mov ebx, [img_base]
		828	mov [eax+SRV.base], ebx
214	serge	829	mov ecx, [start]
		830	mov [eax+SRV.entry], ecx
188	serge	831	ret
227	serge	832
		833	.ver_fail:
		834	mov esi, msg_CR
		835	call sys_msg_board_str
346	diamond	836	mov esi, [driver_name]
227	serge	837	call sys_msg_board_str
		838	mov esi, msg_CR
		839	call sys_msg_board_str
		840	mov esi, msg_version
		841	call sys_msg_board_str
		842	mov esi, msg_www
		843	call sys_msg_board_str
		844	jmp .cleanup
		845
		846	.link_fail:
		847	mov esi, msg_module
		848	call sys_msg_board_str
346	diamond	849	mov esi, [driver_name]
227	serge	850	call sys_msg_board_str
		851	mov esi, msg_CR
		852	call sys_msg_board_str
		853	.cleanup:
		854	stdcall kernel_free,[img_base]
188	serge	855	.fail:
227	serge	856	stdcall kernel_free, [coff]
		857	.exit:
188	serge	858	xor eax, eax
		859	ret
164	serge	860	endp
		861
198	serge	862	align 4
		863	proc load_library stdcall, file_name:dword
		864	locals
		865	coff dd ?
		866	sym dd ?
		867	strings dd ?
		868	img_size dd ?
		869	img_base dd ?
		870	exports dd ?
		871	endl
		872
		873	cli
		874
		875	stdcall load_file, [file_name]
		876	test eax, eax
		877	jz .fail
		878
		879	mov [coff], eax
		880	movzx ecx, [eax+CFH.nSections]
		881	xor ebx, ebx
		882
		883	lea edx, [eax+20]
		884	@@:
		885	add ebx, [edx+CFS.SizeOfRawData]
		886	add ebx, 15
		887	and ebx, not 15
206	serge	888	add edx, COFF_SECTION_SIZE
198	serge	889	dec ecx
		890	jnz @B
		891	mov [img_size], ebx
		892
		893	call init_heap
		894	stdcall user_alloc, [img_size]
		895
		896	test eax, eax
		897	jz .fail
		898	mov [img_base], eax
		899
		900	mov edx, [coff]
		901	movzx ebx, [edx+CFH.nSections]
		902	mov edi, [img_base]
		903	lea eax, [edx+20]
		904	@@:
		905	mov [eax+CFS.VirtualAddress], edi
		906	mov esi, [eax+CFS.PtrRawData]
		907	test esi, esi
		908	jnz .copy
		909	add edi, [eax+CFS.SizeOfRawData]
		910	jmp .next
		911	.copy:
		912	add esi, edx
465	serge	913	; add edi, new_app_base
198	serge	914	mov ecx, [eax+CFS.SizeOfRawData]
		915	cld
		916	rep movsb
		917	.next:
465	serge	918	add edi, 15 ;-new_app_base
		919	and edi, -16
206	serge	920	add eax, COFF_SECTION_SIZE
198	serge	921	dec ebx
		922	jnz @B
		923
		924	mov ebx, [edx+CFH.pSymTable]
		925	add ebx, edx
		926	mov [sym], ebx
		927	mov ecx, [edx+CFH.nSymbols]
		928	add ecx,ecx
		929	lea ecx,[ecx+ecx8] ;ecx=18 = nSymbols*CSYM_SIZE
		930	add ecx, [sym]
		931	mov [strings], ecx
		932
		933	lea eax, [edx+20]
		934
		935	stdcall fix_coff_symbols, eax, [sym], [edx+CFH.nSymbols],\
		936	[strings], dword 0
		937	test eax, eax
		938	jnz @F
		939
		940	@@:
		941	mov edx, [coff]
		942	movzx ebx, [edx+CFH.nSections]
		943	mov edi, new_app_base
		944	lea eax, [edx+20]
		945	@@:
		946	add [eax+CFS.VirtualAddress], edi ;patch user space offset
206	serge	947	add eax, COFF_SECTION_SIZE
198	serge	948	dec ebx
		949	jnz @B
		950
		951	add edx, 20
		952	stdcall fix_coff_relocs, [coff], edx, [sym]
		953
		954	mov ebx, [coff]
		955	stdcall get_coff_sym,[sym],[ebx+CFH.nSymbols],szEXPORTS
		956	mov [exports], eax
		957
		958	stdcall kernel_free, [coff]
		959	mov eax, [exports]
		960	ret
		961	.fail:
		962	xor eax, eax
		963	ret
		964	endp
		965
214	serge	966	align 4
		967	proc stop_all_services
278	serge	968
		969	mov edx, [srv.fd]
214	serge	970	.next:
278	serge	971	cmp edx, srv.fd-SRV_FD_OFFSET
		972	je .done
		973	cmp [edx+SRV.magic], ' SRV'
227	serge	974	jne .next
278	serge	975	cmp [edx+SRV.size], SRV_SIZE
227	serge	976	jne .next
278	serge	977	mov ebx, [edx+SRV.entry]
		978	mov edx, [edx+SRV.fd]
		979	push edx
214	serge	980	stdcall ebx, dword -1
278	serge	981	pop edx
214	serge	982	jmp .next
278	serge	983	.done:
		984	ret
214	serge	985	endp
198	serge	986
281	serge	987	; param
291	serge	988	; eax= size
		989	; ebx= pid
214	serge	990
281	serge	991	align 4
		992	create_kernel_object:
		993
		994	push ebx
		995	call malloc
		996	pop ebx
		997	test eax, eax
		998	jz .fail
		999
465	serge	1000	mov ecx,[current_slot]
		1001	add ecx, APP_OBJ_OFFSET
281	serge	1002
345	serge	1003	pushfd
		1004	cli
281	serge	1005	mov edx, [ecx+APPOBJ.fd]
		1006	mov [eax+APPOBJ.fd], edx
		1007	mov [eax+APPOBJ.bk], ecx
		1008	mov [eax+APPOBJ.pid], ebx
		1009
		1010	mov [ecx+APPOBJ.fd], eax
		1011	mov [edx+APPOBJ.bk], eax
345	serge	1012	popfd
281	serge	1013	.fail:
		1014	ret
		1015
		1016	; param
		1017	; eax= object
		1018
		1019	align 4
		1020	destroy_kernel_object:
		1021
345	serge	1022	pushfd
		1023	cli
281	serge	1024	mov ebx, [eax+APPOBJ.fd]
		1025	mov ecx, [eax+APPOBJ.bk]
		1026	mov [ebx+APPOBJ.bk], ecx
		1027	mov [ecx+APPOBJ.fd], ebx
345	serge	1028	popfd
281	serge	1029
		1030	xor edx, edx ;clear common header
		1031	mov [eax], edx
		1032	mov [eax+4], edx
		1033	mov [eax+8], edx
		1034	mov [eax+12], edx
		1035	mov [eax+16], edx
		1036
		1037	call free ;release object memory
		1038	ret
		1039
		1040
164	serge	1041
465	serge	1042	if 0
164	serge	1043
465	serge	1044	irq:
188	serge	1045
465	serge	1046	.irq0:
		1047	pusfd
		1048	pushad
		1049	push IRQ_0
		1050	jmp .master
		1051	.irq_1:
		1052	pusfd
		1053	pushad
		1054	push IRQ_1
		1055	jmp .master
		1056
		1057	.master:
		1058	mov ax, app_data
		1059	mov ds, eax
		1060	mov es, eax
		1061	mov ebx, [esp+4] ;IRQ_xx
		1062	mov eax, [irq_handlers+ebx+4]
		1063	call intr_handler
		1064	mov ecx, [esp+4]
		1065	cmp [irq_actids+ecx*4], 0
		1066	je @F
		1067	in al, 0x21
		1068	bts eax, ecx
		1069	out 0x21, al
		1070	mov al, 0x20
		1071	out 0x20, al
		1072	jmp .restart
		1073
		1074	.slave:
		1075	mov ax, app_data
		1076	mov ds, eax
		1077	mov es, eax
		1078	mov ebx, [esp+4] ;IRQ_xx
		1079	mov eax, [irq_handlers+ebx+4]
		1080	call intr_handler
		1081	mov ecx, [esp+4]
		1082	sub ecx, 8
		1083	cmp [irq_actids+ecx*4], 0
		1084	je @F
		1085	in al, 0xA1
		1086	bts eax, ecx
		1087	out 0xA1, al
		1088	mov al, 0x20
		1089	out 0xA0, al
		1090	out 0x20, al
		1091	.restart:
		1092	mov ebx, [next_slot]
		1093	test ebx, ebx
		1094	jz @F
		1095	mov [next_task],0
		1096	mov esi, [prev_slot]
		1097	call do_change_task
		1098	add esp, 4
		1099	iretd
		1100
		1101	end if
		1102

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(root)/kernel/trunk/core/dll.inc – Rev 488