tree d629d50892260108898aefb4ea114815922ec9aa
parent 7cfc94ac3bfdff4d826effab4dda3ec6ea11b78c
author Kelvin Zhang <zhangkelvin@google.com> 1610049318 -0500
committer Kelvin Zhang <zhangkelvin@google.com> 1626910964 -0400

Emit XOR ops at OTA generation time

1. Add a new merge operation type: COW_XOR
2. When running bsdiff, extract similar blocks and record them in
annotated operations
3. During merge sequence generation, include COW_XOR ops as well

Test: treehugger
Bug: 177104308

Change-Id: If894736859b572e761e83be5a9498235caa68866