Why Does UIDictationConnection Crash on iOS 16+? A Deep Dive into EXC_BAD_ACCESS and Fixes

This article analyzes the UIDictationConnection crash on iOS 16 and later, explains the EXC_BAD_ACCESS (SIGSEGV) cause, walks through assembly‑level stack inspection, and provides a thread‑safe locking solution with runtime hooks to prevent the wild‑pointer failure.

EXC_BAD_ACCESScrash debuggingiOS

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Why Does UIDictationConnection Crash on iOS 16+? A Deep Dive into EXC_BAD_ACCESS and Fixes

Huolala Tech

Aug 23, 2022 · Mobile Development

How to Hook objc_msgSend for Precise iOS Method Timing with Assembly

This article explains how to accurately measure the execution time of Objective‑C methods on iOS by implementing a custom objc_msgSend hook in ARM64 assembly, replacing the original implementation with fishhook, and visualizing the results using Chrome tracing, offering a low‑cost, non‑intrusive performance profiling solution.

AssemblyiOSmethod timing

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How to Hook objc_msgSend for Precise iOS Method Timing with Assembly

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.

FishhookPerformance MonitoringRuntime

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

Why Does UIDictationConnection Crash on iOS 16+? A Deep Dive into EXC_BAD_ACCESS and Fixes

How to Hook objc_msgSend for Precise iOS Method Timing with Assembly

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

Why Does UIDictationConnection Crash on iOS 16+? A Deep Dive into EXC_BAD_ACCESS and Fixes