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Add comments explaining how secondary OTA works

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Test: th
Change-Id: I72f890e3dcb6f8369dea8071da040b4c27877a2b
This commit is contained in:
Kelvin Zhang 2023-04-07 09:46:48 -07:00
parent 90206e3493
commit bd111ccae2
1 changed files with 7 additions and 0 deletions
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7
tools/releasetools/ota_from_target_files.py
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@ -423,6 +423,13 @@ def GetTargetFilesZipForSecondaryImages(input_file, skip_postinstall=False):
slot will be used. This is to ensure that we always have valid boot, vbmeta,
bootloader images in the inactive slot.
After writing system_other to inactive slot's system partiiton,
PackageManagerService will read `ro.cp_system_other_odex`, and set
`sys.cppreopt` to "requested". Then, according to
system/extras/cppreopts/cppreopts.rc , init will mount system_other at
/postinstall, and execute `cppreopts` to copy optimized APKs from
/postinstall to /data .
Args:
input_file: The input target-files.zip file.
skip_postinstall: Whether to skip copying the postinstall config file.