Mike Ash • 7/1/2017

Friday Q&A 2017-06-30: Dissecting objc_msgSend on ARM64

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This article provides a detailed, low-level analysis of how objc_msgSend is implemented in assembly language on ARM64 processors. It explains the method lookup process, the role of the method cache for performance, and the division between the fast assembly path and the slow C path for handling complex lookups and message forwarding.

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#assembly #Arm64 #Method Dispatch
Friday Q&A 2017-06-30: Dissecting objc_msgSend on ARM64

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