| commit | 040410c1042709cf4cef674d4ebda6f4e7655c2c | [log] [tgz] |
|---|---|---|
| author | Bowgo Tsai <bowgotsai@google.com> | Thu Sep 20 16:40:01 2018 +0800 |
| committer | Bowgo Tsai <bowgotsai@google.com> | Wed Oct 03 10:08:45 2018 +0800 |
| tree | aee935e56a4af38deef0cb74b25ad5d1e214df9a | |
| parent | e1d2c8d6471ac074351caeb8a73d0e321f9da4cf [diff] |
Prevent AVB signing from using _RESERVED_SIZE
When AVB is enabled with PRODUCT_USE_DYNAMIC_PARTITION_SIZE, AVB
metadata (e.g., hash tree, fec metadata) will consume _RESERVED_SIZE,
resulting in smaller reserved size in file system (e.g., ext4).
Adding additional space for AVB signing and keep the _RESERVED_SIZE only
for file system. This is done by adding a function to binary search an
optimal partition size for a given image size (disk usage + _RESERVED_SIZE).
Bug: 112322265
Test: Build aosp_arm64-userdebug, calculate the running time of
AVBCalcMinPartitionSize() is about 0.3-0.4 seconds.
Test: python -m unittest test_build_image
Change-Id: I8f0051b57701d6fbba6a9db3756dd194066c74b8
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