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Chapter4.DevelopmentToolsMuchlikemainstreamsoftwaredevelopers,embeddedsystemdevelopersneedcompilers,linkers,interpreters,integrateddevelopmentenvironments,andothersuchdevelopmenttools.Theembeddeddeveloper'stoolsaredifferent,however,inthattheytypicallyrunononeplatformwhilebuildingapplicationsforanother.Thisiswhythesetoolsareoftencalledcross-platformdevelopmenttools,orcross-developmenttools,forshort.Thischapterdiscussesthesetup,configuration,anduseofcross-platformdevelopmenttools.First,Iwilldiscusshowtouseapracticalprojectworkspace.IwillthendiscusstheGNUcross-platformdevelopmenttoolchain,theClibraryalternatives,Java,Perl,Python,Ada,otherprogramminglanguages,integrateddevelopmentenvironments,andterminalemulationprograms.4.1UsingaPracticalProjectWorkspaceInthecourseofdevelopingandcustomizingsoftwareforyourtarget,youwillneedtoorganizevarioussoftwarepackagesandprojectcomponentsinacomprehensiveandeasy-to-usedirectorystructure.HYPERLINK""\l"belinuxsys-CHP-4-TABLE-1"Table4-1showsasuggesteddirectorylayoutyoumayfinduseful.Feelfreetomodifythisstructuretofityourneedsandrequirements.Whendecidingwheretoplacecomponents,alwaystrytofindthemostintuitivelayout.Also,trytokeepyourowncodeinadirectorycompletelyseparatedfromallthepackagesyouwilldownloadfromtheNet.Thiswillminimizeanyconfusionregardingthesource'sownershipandlicensingstatus.Table4-1.SuggestedprojectdirectorylayoutDirectoryContentbootldrThebootloaderorbootloadersforyourtargetbuild-toolsThepackagesanddirectoriesneededtobuildthecross-platformdevelopmenttoolchaindebugThedebuggingtoolsandallrelatedpackagesdocAllthedocumentationyouwillneedforyourprojectimagesThebinaryimagesofthebootloader,thekernel,andtherootfilesystemreadytobeusedonthetargetkernelThedifferentkernelversionsyouareevaluatingforyourtargetprojectYourownsourcecodeforthisprojectrootfsTherootfilesystemasseenbythetarget'skernelatruntimesysappsThesystemapplicationsrequiredforyourtargettmpAtemporarydirectorytoexperimentandstoretransientfilestoolsThecompletecross-platf
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