嵌入式Linux內(nèi)核研究.pdf

1、曲阜師范大學(xué)碩士學(xué)位論文嵌入式Linux內(nèi)核研究姓名：孫良勇申請學(xué)位級別：碩士專業(yè)：控制理論與控制工程指導(dǎo)教師：李洪亮20080401AbstractAlongwiththedevelopmentofcomputertechnologycommunicationtechnologyandcontroltechnologytheembeddedtechnologyisdevelopingrapidlyThechoiceofallappro

2、priateembeddedoperatingsystemCallgreatlyimprovetheperformanceofthesystemandspeedupthedevelopmentofprojectEmbeddedLinuxkernelisstableande硒cientalsobecauseofilsopensourceandabundantmaterials，itiswidelyusedinthefieldofembed

3、dedsystemARMisthemostwidelyused32bitmicroprocessorandtheapplicationofLinuxonARMisoneofthemostpopularfieldinembeddedsystem，sotheresearchobjectofthepaperisthes3c2410processorandLinux2620kernelAfteralotofresearchandpractica

4、lworktheauthorexploressomekeYtechnologiesaboutLinuxatkemellevelBootloaderisasmallsectionofcodethatrunsbeforethekemeloftheoperatingsystemitsmainfunctionarehardwareinitializationandprepairingarigthenvironmentbeforetherunni

5、ngoftheOSkernelThemainfunctionofaoperatingsystemarehardwareresourcemanagementandhardwareabstraction，asageneraloperatingsystem，theLinuxkemelconsistsofmemorymanagement，processmanagementfilesystemanddevicedriversInembeddeds

6、ystems，memoryisascarceresource，thememorymanagementisabasicthingfordesigningaoperatingsystem，anditsrealizationdependsonthehardwarearchitectureheavilyThes3c2410processorhasaMMU，whichprovidesthefunctionofvirtualaddresstrans

7、lationandmemoryprotectionTheprocesscontrolandmanagementisallaccordanceofdeterminingwhetherasoftwareisalloperatingsystem，therunningmannerofprocessdirectlydeterminestherealtimeperformanceofalloperatingsystem，andit’sthemost

8、importantfactorforthedesignofanopermingsystemFilesystemistherealizationofdatastorageandmanagementinoperatingsystemalsoitisanabstractofthestoragemedia，itslowerlayeristhedevicedriverofthestoragemedia，so，itisthenecessaryele

9、mentofallopermingsystemThedevicedriverisacommunicationbridgebetweenacomputerandtheoutsideworld，withoutinputandoutputandallkindsofexternaldevices，acomputerwilllosethemeaningofiIsbeingsodevicedrivershasanimportantstatusint

10、hedesignofanoperatingsystemInLinux，devicedriversbehaveasmodules，theycallbeinstalledanduninstalleddynamicallyalsotheycanbecompiledwiththeLinuxcoreasawholeSo，toexploretheprincipleofembeddedLinux，aftertheintroductionofthehi

11、storyandtrendofembeddedLinux，theauthorstudiedtheconcept，functionandthemainfeatureofBootloader，basedonthecodeofUbootNext，therealizationprincipleon鋤ofLinux’smemorymanagement，processmanagement，systemcall，interruptprocessing

12、anddevicedriversarestudiedatkernelleveiratherthanatapplicationlevelAtthesametimemanymethodstoimprovetheLinuxkemelandsomekeytechnologiesaboutembeddedLinuxarebroughtup，whichhasimportantmeaningstotheresearchofoperatingsyste

13、mandthedevelopmentofLinuxapplicationsBluetoothisashort—ditancewirelesscommunicationtechnologywhichisdevelopingrapidlyAftertheresearchofthebasisforLinuxkernelabluetoothwirelessLANisdesignedsuccessfullybasedonARM—Linuxplat