When generating incremental BBOTAs (v2 and above), we need to ensure
that the needed runtime stash is below the given threshold. If it's
running out of space on /cache, we replace the command that uses a
stash with a "new" command instead.
This may increase the OTA package size, since it is carrying more full
blocks instead of patches. It gets even worse for large files that span
a number of blocks, because currently we will store all the blocks for
the file as "new" blocks if stashing cannot be satisfied. We may further
optimize by splitting them into smaller chunks so that most of them can
still be stashed.
Bug: 22430577
Change-Id: Ieae5243d461e3f899f613f76a380f6f7c3edb356
(cherry picked from commit 82c47981bd)
With block-based OTA v2 and v3, it requires stash space on the /cache
partition to back up blocks during an update. We need to ensure that
it doesn't exceed the partition size. Since there might be other files
on /cache as well, we use cache_size * threshold as the maximum allowed
size. The threshold defaults to 0.8, which can be overridden by command
line option '--stash_threshold'.
Change-Id: Ieee5d373c9bfb2ea401d85ca8a3adb491579de76
(cherry picked from commit 23ac404212)
For BBOTA v3, we need to stash source blocks to support resumable
feature. However, with the growth of file size and the shrink of the
cache size, source blocks that represent a file are too large to be
stashed as a whole. CL in [1] solves the issue by replacing the diff
command with a "new" command. However, it may increase the generated
package size substantially (e.g. from ~100MB to ~400MB).
With this CL, if a file spans too many blocks, we split it into smaller
pieces by generating multiple commands. For the same case above, it
reduces the package size to ~150MB.
One potential downside is that after splitting, files like .jar,
.apk and .zip can no longer use imgdiff. We may lose the potential
benefit of using imgdiff for patch size reduction.
[1] commit 82c47981bd
Bug: 22430577
Change-Id: I5684fab0ac41c8d94fe18f52a34cef77e06f741c
* commit '425e1d5c57f808ae6308d49125d68b5b43e78d7c':
fix a few bugs in the studio download button behavior: - make button text always white (avoid blue on blue during hover) - revise logic to add the platform name to download button to avoid weird duplicity bug on small screens - remove the animation script when clicking download before agree because it reloaded the page (unkown cause) depends on: https://googleplex-android-review.git.corp.google.com/#/c/752757/
* commit '15bb28fc73fa30e9c7b8ee0d924c8906724809e0':
fix a few bugs in the studio download button behavior: - make button text always white (avoid blue on blue during hover) - revise logic to add the platform name to download button to avoid weird duplicity bug on small screens - remove the animation script when clicking download before agree because it reloaded the page (unkown cause) depends on: https://googleplex-android-review.git.corp.google.com/#/c/752757/
* commit 'ed7e864a735f004f1dbb4a2db5261855b5693913':
fix a few bugs in the studio download button behavior: - make button text always white (avoid blue on blue during hover) - revise logic to add the platform name to download button to avoid weird duplicity bug on small screens - remove the animation script when clicking download before agree because it reloaded the page (unkown cause) depends on: https://googleplex-android-review.git.corp.google.com/#/c/752757/
* commit 'ed7e864a735f004f1dbb4a2db5261855b5693913':
fix a few bugs in the studio download button behavior: - make button text always white (avoid blue on blue during hover) - revise logic to add the platform name to download button to avoid weird duplicity bug on small screens - remove the animation script when clicking download before agree because it reloaded the page (unkown cause) depends on: https://googleplex-android-review.git.corp.google.com/#/c/752757/
- make button text always white (avoid blue on blue during hover)
- revise logic to add the platform name to download button to avoid weird duplicity bug on small screens
- remove the animation script when clicking download before agree because it reloaded the page (unkown cause)
depends on: https://googleplex-android-review.git.corp.google.com/#/c/752757/
Change-Id: I1b2b4ff9c0b0cbbd34f1c77a2b736fe3425a16e4
For squashfs, we currently don't have a system.map. So the whole system
image will be treated as a single file. But for some unknown bug, the
updater will be killed due to OOM when writing back the patched image to
flash (observed on lenok-userdebug MEA49). Prior to getting a real fix,
we evenly divide the non-zero blocks into smaller groups (currently 1024
blocks or 4MB per group).
Bug: 23227672
Change-Id: Ifeddd8d802f01f8cd2a743a1d1217a284fb6e182
* commit 'c10e65ac58064ee1595864c2db3c39e35f70944f':
DO NOT MERGE Revert "D.N.M. Revert "Add the ability to display annotations in the generated docs""
We still support HOST_OS=windows for the SDK host tools cross-builds, but
that's only when USE_MINGW is set when running under linux.
Change-Id: I37da87dc9fbbd69ba10ce4d7f2668ab3f6482d92
When generating incremental BBOTAs (v2 and above), we need to ensure
that the needed runtime stash is below the given threshold. If it's
running out of space on /cache, we replace the command that uses a
stash with a "new" command instead.
This may increase the OTA package size, since it is carrying more full
blocks instead of patches. It gets even worse for large files that span
a number of blocks, because currently we will store all the blocks for
the file as "new" blocks if stashing cannot be satisfied. We may further
optimize by splitting them into smaller chunks so that most of them can
still be stashed.
Bug: 22430577
Change-Id: I5a49e361adc7d3d41de2e9c08ee9b08c1e6c091a
In BBOTA v2, the stash size computation is inaccurate. A stash will be
used only once, so we deduct its size from stashed_blocks right after
its use. However, the stash doesn't actually get freed until being
overwritten by another stash or destroyed at the end of an update. This
leads to OTA failures due to insufficient space on /cache. This CL
changes the BBOTA v2 script to generate an explicit free right after
its use.
Bug: 23119955
Change-Id: Icdd8352bb0ff778945937c870990a888c7a4d38b
