embedded從入門到精通系列課程15windows ce6.0的內(nèi)核介紹及oal開發(fā)

WindowsCE6.0的黃文 點(diǎn)擊添加MSN為您收 MSDN中文網(wǎng)絡(luò)廣播課程加油助力講師黃文微軟嵌入式系統(tǒng)最有價(jià)值專家微軟系統(tǒng)工程師現(xiàn)就職于 工作方向WindowsCE，WindowsXPEmbedded的嵌入式操作系統(tǒng)驅(qū)動(dòng)開發(fā)及應(yīng)用集微軟 XPE版版主,也常去WinCE

課程簡(jiǎn)介CE的內(nèi)核架構(gòu),及與內(nèi)核直接相關(guān)的OAL收聽本次課程需具備的條了解操作系統(tǒng)嵌入式開發(fā)調(diào)試的Level聽完本課程后要了解的OAL(1)CE6的內(nèi)核是指那些模塊 (2)NK.exe和kernel.dll的調(diào)用接口包含在哪里(2A):在結(jié)構(gòu):NKGLOBAL和(3):應(yīng)用程序如 (3A):通過(1):什么內(nèi)核OALCE5.0(RemoteProcess CE5.0的硬多任務(wù)嵌入式系統(tǒng)的三層應(yīng)用需求要求內(nèi)存空間任務(wù),如GPS地圖3332M不夠硬移植麻硬件發(fā)展的內(nèi)存更快的速度 的外

上下兩層的要CE6.0的新特CE6.0系統(tǒng)體系結(jié)UM用User 模OSDLLs(Coredll,Winsock,CommCtrl,

內(nèi)內(nèi) KernelKernelKernelVirtualMemoryObjectStoreObjectStoreKernelXIPDLLs(1282Fixedmapindependentofuser

CPUSpecificKernelKernel256/512

apAreaallstem&ramLLsinccesstoStaticMapped512StaticMapped512512

cessto

256 CPU-specific SystemcalltrapKerneldata

256 KernelVM,

Kernelspacevirtualmemory,unlessdisallowedbytheCPU,suchasSHx.

256MB KernelVM Kernelspacevirtualmemory,sharedbyallserversanddriversloadedinkernel.

128MB Objectstore RAMbasedstorageforRAMfilesystem,CEDBdatabases,andRAM-basedregistry.Legacydata

128MB KernelXIPDLLs XIPDLLsforthekernelandallserversanddriversloadedinthe 512

Statically

Directaccess bypassingtheCPU

512

DirectaccesstophysicalmemoryaccessedthroughtheCPUcache.CE6.0內(nèi)核OALBaseAddress在 –CE6.0(Makeimage輸出Processingofcontent 82faa4c0000021dc( WritingROMsignatureandTOCpointerKerneldatacopysection ROMLastDLL

PhysicalStartPhysicalEnd StartStart

EndofRAM: NumberofModules: NumberofCopySections:3CopySectionOffset: FileSys4KChunks/Mbyte:128<2Mbyte1282-4Mbyte04-6Mbyte0CPUType:ExtensionsPointer:TotalROMsize:Startingip:

Rawfilessize: Compressedfilessize:0024dc62Compactingbinfile...CE6.0

CE6.0RemoteProcess 3:OAL模塊--對(duì)比--非OAL(使用DEPENDS工具OAL模塊 非OAL,普通內(nèi)核模塊內(nèi)核功能架1: 2: 3:(2):OAL模塊的編譯CE5.0內(nèi)核代 結(jié)InWindowsCE三個(gè)不同版本的內(nèi)核 Kernel=OAL+Kernel+KITL= Kernel+KITL+Profiler=各個(gè)功能靜 .函數(shù)直 CE6.0內(nèi)核代 結(jié)CE5CE6,OAL的變OAL變成了Kernel代碼變成了OEM功能不OAL/Kernel的接口經(jīng)由共享結(jié)WindowsEmbeddedCE6.0OALKITLKITL

; Memory

--------------------------------------------

----------;@CESYSGENIFCE_MODULES_NKIFIMGNOKITL

NKIF ENDIFIMGNOKITLDLLIFIMGNOKITLDLL

NK

NKSHZNKSHZENDIFIMGNOKITL!IFkerne. $_

NKkerne. $_

NKCE6

Oal.lib的sources idle.c\init.c\intr.c\ioctl.c\args.c\name.c\debug.c\reboot.c\alarm.c\timer.c\watchdog.c\fiq.c\oalintr.c\profiler.c\

Oal.exe的sourcesTARGETLIBS=\$(_COMMONOAKROOT)\lib\$(_CPUDEPPATH)\oemmain.lib$(_COMMONOAKROOT)\lib\$(_CPUDEPPATH)\nkstub.lib$(_COMMONOAKROOT)\lib\$(_CPUDEPPATH)\nkldr.lib MONLIB)\$(_CPUDEPPATH)\oal_memory_arm.lib MONLIB)\$(_CPUDEPPATH)\oal_ioctl.lib MONLIB)\$(_CPUINDPATH)\oal_io.lib CE6.0 _DMA=1;copykitldma.dll

KITL.dll的 IBS= CE6.0 運(yùn)行Sysgen ptureNK得到kern.dll的Sources如下: pr.lib OT)\common\oak\lib\$(_CPUINDPATH)\nkmapfile.lib OT)\common\oak\lib\$(_CPUINDPATH)\nkmsgq.lib OT)\common\oak\lib\$(_CPUINDPATH)\oemstub.lib OT)\common\oak\lib\$(_CPUINDPATH)\nklogger.lib OT)\common\oak\lib\$(_CPUINDPATH)\nkmain.lib (3):多任務(wù)OS開始前,單任務(wù)OAL的準(zhǔn)備OAL的啟動(dòng)在 文件,一般用匯編語言書寫,和Bootloader共用此段代件初(驅(qū)動(dòng) 后還可以再調(diào)整和自己相關(guān)的GPIO/IRQ/Timer等 傳遞 dressTable到 此代碼由軟提供,一般不改建立和虛內(nèi)存管理相關(guān)的數(shù)據(jù)結(jié)構(gòu)(映射表) truct調(diào)用:調(diào)用 Relocate(pTOC);走出純ROM,可以定位DLL和變量 打開中斷任務(wù)系統(tǒng)開始運(yùn) try try merEnablepfnProfileTimerEnable; mpfnHaltSystem; TLGlobalInit; #ifdefined #elifdefined reVFPCtrlRegspfnSaveVFPCtrlRegs; ExceptionpfnHandleVFPExcp;#elif DWORDdwArchFla constBYTE constBYTE #elifdefined r #pragmaerr } try try merEnablepfnProfileTimerEnable; mpfnHaltSystem; TLGlobalInit; #ifdefined #elifdefined reVFPCtrlRegspfnSaveVFPCtrlRegs; ExceptionpfnHandleVFPExcp;#elif DWORDdwArchFla constBYTE constBYTE #elifdefined r #pragmaerr } typedefstruct_NKGLOBAL void vDbgPrintfW)(LPCWSTRlpszFmt,va_listint(*pf void(*pfnSetLastErrorDWORDdwErr); void(W void(W *pfnDeleteCS)(LPCRITICAL_SECTIONlpcs);void(W *pfnEnterCS)(LPCRITICAL_SECTIONlpcs);void(W *pfnLeaveCS)(LPCRITICAL_SECTIONlpcs);void*pfnINT_OFFvvoid(*pfnINT_ON) nINT_ENABLE)(BOOL nHookInterrupt)(inthwInterruptNumber,FARPROCpfnHandler); nNKCallIntChain)(BYTEirq); nNKIsSysIntrValid)(DWORDidInt); void(*pf eep)(DWORDcmsec); nVMSetAttrib)(LPVOIDlpvAddress,DWORDcbSize,DWORDdwNewFlags,DWORDdwMask,LPDWORDlpdwOldFlags); nCreateStaticMapping)(DWORDdwPhysBase,DWORDdwSize); REGSAMsa nRegCloseKey)(HKEYhKey); egQueryValueExW)(HKEYhKey,LPCWSTRlpValueName,LPDWORDlpReserved,LPDWORDlpType,LPBYTElpData, DWORDvoid(*pf ForceCleanBoot)(void); nNKReboot)(BOOLfClean); nPhysToVirt)(DWORDdwShiftedPhysAddr,BOOLfCached); nVirtToPhys)(DWORDdwVirtAddr); nNKwcslen)(constwchar_t*int(*pf cscmp)(constwchar_t*pwc1,constwchar_t*pwc2);int(*pf csicmp)(LPCWSTRstr1,LPCWSTRstr2);int(*p snicmp)(LPCWSTRstr1,LPCWSTRstr2,intcchLen);void(*pfnNKwcscpy)(LPWSTRp1,LPCWSTRp2);DWORD(*pfnNKwcsncpy)(LPWSTRpDst,LPCWSTRpSrc,DWORDint(*pfnNKstrcmpiAandW)(LPCSTRlpa,LPCWSTRvoid(*pf void BOOL(* BOOL

(LPSTRchptr,LPCWSTRwchptr,intmaxlen);(LPWSTRwchptr,LPCSTRchptr,int(constSYSTEMTIME*pst,LPFILETIMEpft);(constFILETIME*pft,LPSYSTEMTIMELONG(* pareFileTime)(constFILETIME*,constFILETIME*);void(*pf erHit)(UINTaddr); ORDdwCurMSec; #ifdef abnormal_termination;BOOL BOOL(*

(DWORDdwAddr,DWORDdwValHigh,DWORDdwValLow);(DWORDdwAddr,DWORD*lpdwValHigh,DWORD*lpdwValLow); C_specific_handler;#ifdefBYTE #ifdefconstDW *dwOriVectors; } :(4):多任務(wù)OS運(yùn)行后,OAL功能及Krn lGlobaltimingvariablesexportedbythekernelManagementofthethreadschedulingtimerInterruptlatencytimingHigh-performancecountersupportMonteCarloprofilingsupportKernelGlobalVariablesforScheduling DWORDcounterofthenumberofmillisecondssincesystemboot.TheusercanreadthisvariablebycallingGetTickCount.DWORDcontainingthemillisecondcountofthenexttimethekernelexpectstorunthescheduler.curridlehigh,curridlelow,andDWORDvariablesthatimplementa64-bitcounterreflectingthenumberofm econdsthesystemhasbeenidle.TheusercanreadthiscounterbycallingGetIdleTime.kerneloperationalnormalSuspendOEMPowerOffResumeOEMResumeProduction-QualityOAL duction-qualityOALmodeldividestheoriginalmonolithicOALintoacollection rr raryisa Althoughthelibrarycode'slocationdependsonthescopeofthehardwareitsupports,thecodeisgroupedinthefollowing Codethatisnothardware-specific CodethatisuniquetotheCPUfamily CodethatisuniquetoaspecificCPUorsystem-on-a-chip(SOC)model Codethatis ecificboardBoot

Passesparametersfromthebootloadertothekernelinauniformway.Formoreinformation,seeBootArgumentsLibrary.

Implementscacheandtranslationlook-asidebuffer(TLB)operations.Formoreinformation,seeCacheLibrary.Ethernet

ImplementsEthernetkernelindependenttransportlayer(KITL)devicedrivers,whichareimplementedinthecommonlibrary.The%_WINCEROOT%\ tform\Common\Src\Inc\Oal_ethdrvhfilecontains esforthe

Implementscodeforflashmemoryoperations.Theproduction-qualityOALprovidesgenericsolutions pliantflashInterruptLatency

ImplementsinterruptFormoreinformation,seeInterruptImplementsILT*functions.ThislibraryusuallyrequiresILTimingtobeenabled,aswellastheInterruptandTimerlibraries.Formoreinformation,seeInterruptLatencyTiming

Implementsbusaddresstranslation,readingbusconfigurationspace,andI/Ooperations.Formoreinformation,seeI/OLibrary.Real-Time

OEMIoControl,whichcallskernelfunctionsfromuserspace.ItalsoimplementssomegenericOALIoCtlXXXfunctions.Formoreinformation,seeIOCTLLibrary.ImplementsdebugcommunicationoverKITL.Formoreinformation,seeKITLLibrary.ImplementsconsistentloggingintheOAL.Formoreinformation,seeLoggingLibrary.ImplementstranslationbetweenphysicalandvirtualmemoryinkerneladdressFormoreinformation,seeMemoryImplementsPCIbussupportinthekernel.ItalsoimplementssimplePCIbusconfigurationfunctionsintendedtobeusedforbootloaderandKITL.Formoreinformation,seePCIImplementssystemsuspendandresumeInmostcases,powermanagementishardwaredependent.Formoreinformation, ImplementsOALprofiling.ThislibraryimplementstheOALfunctionsrequiredforkernelprofiling.Formoresee%_WINCEROOT%\ Implementsfunctionalityforreal-timeclock(RTC).Formoreinformation,see%_WINCEROOT%\ Implementsthesystemtick,orclo