Detailed Explanation of Android Virtual Partition (4) Compile Switch

The Android Virtual A/B system is called VAB for short, and I call it a virtual partition.

This series of articles is based on Android R (11) for analysis, unless otherwise specified, it is based on the code version android-11.0.0_r46

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0. Introduction

This series is called Detailed Explanation of Virtual Partitions, and I have written three articles so far:

• "Detailed Explanation of Android Virtual Partition (1) Recommended Reference Materials"
• "Detailed Explanation of Android Virtual Partition (2) Virtual Partition Layout"
• "Detailed Explanation of Android Virtual Partition (3) Partition Status Change"

And the principle of the underlying linux snapshot snapshot of the virtual partition:

• 《Linux