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EKA2 (EPOC Kernel Architecture 2) is the second-generation Symbian platform real-time operating system kernel, which originated in the earlier operating system EPOC. EKA2 began with a proprietary software license. In October 2009, it was released as free and open-source software under an Eclipse Public License. In April 2011, it was reverted to a proprietary license. Like its predecessor, EKA1, it has preemptive multithreading and full memory protection. The main differences are:

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  • EKA2 (en)
  • EKA2 (zh)
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  • EKA2(Epoc Kernel Architecture)是Symbian OS的第二代核心。 如同它的第一代核心EKA1一般,具有先佔式多工與記憶體保護功能。兩者主要的差異在於: * 即時處理(real-time)的保證(API的呼叫是快速、更重要、時間限制內) * 多執行緒的支持 * 隨插式記憶體模型,支持更多的ARM處理器指令 * 更友善的使用者介面支持,讓使用者可以在Symbian OS 8.0以及8.1中選取核心的設定。 EKA2最主要的優勢還在於支持電話具信號堆疊(singalling stacks)。一般而言,Symbian OS的手機通常是執行於分散的處理器,或是同一個處理器,但是必須使用到複雜而且靠不住的“hacks”。這樣的“具信號堆疊”實在過於複雜,想將程式碼改寫,使其能在Symbian OS自然的運作,顯然不容易做到。因此,EKA2提供了客制化層級(personality layers),實現一般作業系統的基礎基元(basic primitives),允許具信號堆疊在Symbian OS上可擁有更多的不變性。 (zh)
  • EKA2 (EPOC Kernel Architecture 2) is the second-generation Symbian platform real-time operating system kernel, which originated in the earlier operating system EPOC. EKA2 began with a proprietary software license. In October 2009, it was released as free and open-source software under an Eclipse Public License. In April 2011, it was reverted to a proprietary license. Like its predecessor, EKA1, it has preemptive multithreading and full memory protection. The main differences are: (en)
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  • EKA2 (en)
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  • EKA2 (en)
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  • Proprietary and Open source (en)
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  • Yes (en)
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  • EPOC (en)
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  • English (en)
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