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360 Tech Engineering
360 Tech Engineering
Feb 13, 2020 · Mobile Development

iOS Method Execution Time Monitoring: Hooking objc_msgSend with Fishhook and Assembly

This article explains how to implement method‑execution time monitoring on iOS by hooking objc_msgSend using fishhook and custom assembly, detailing the concepts of hooks, the dyld symbol‑rebinding process, and providing complete code examples for building the QiLagMonitor tool.

FishhookMethod HookingPerformance Monitoring
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iOS Method Execution Time Monitoring: Hooking objc_msgSend with Fishhook and Assembly