Mach-O File Analysis and Resource Optimization for Baidu iOS App

The article explains how Baidu’s iOS app reduces package size by examining Mach‑O binaries with tools like otool and MachOView, then applying Python scripts to locate oversized assets, eliminate unused configuration files, and deduplicate resources, achieving a 12 MB reduction and a repeatable optimization pipeline.

Mach-OResource Optimizationbinary analysis

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Mach-O File Analysis and Resource Optimization for Baidu iOS App

Sohu Tech Products

Jul 7, 2021 · Mobile Development

Analyzing Mach-O Files with Otool to Identify Unused Classes and Methods in iOS Apps

This article explains how to use the otool command to parse Mach-O sections, extract __objc_classlist and __objc_classrefs, compute their differences, and locate unused Objective‑C classes and methods for iOS app size optimization, providing sample Objective‑C code and detailed implementation steps.

Mach-Obinary analysisiOS

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Analyzing Mach-O Files with Otool to Identify Unused Classes and Methods in iOS Apps