$snapshotctl apply-update <directory containing snapshot patches>
This command is equivalent to applying incremental-ota but
bypasses all of the update-engine subsystem. Snapshot-patches
which are created on the host will be used directly and
will be written to the COW block devices.
No change to any of the libsnapshot or the I/O path logic.
Once the snapshot patches are applied, device is ready
to reboot as if an OTA update is applied.
Once the device reboots, snapshot merge will be initiated
as usual.
This will help test the changes to libsnapshot + init + snapuserd
extremely quick.
Incremental flashing becomes quite simple in the CI workflow.
Here are numbers tested on live builds where the actual builds/testing
is done on CI.
Patch-Create+Apply = Create the snapshot patches between two
builds and apply them to the device
Branch(main) Patch-Creation+Apply Merge Snapshot-size
=================================================================
Build-1 -> Build-2 14 seconds 40 seconds 160MB
Build-2 -> Build-3 21 seconds 26 seconds 331MB
Build-3 -> Build-4 30 seconds 45 seconds 375MB
Build-X -> Build-X 3 seconds 4 seconds 8MB
Bug: 319309466
Test: On Pixel 6, incremental builds
Change-Id: I271b2cb5df4abde91571ec70ce06f926a1d01694
Signed-off-by: Akilesh Kailash <akailash@google.com>
libvendorsupport_llndk_headers provide libvendorsupport_llndk_headers
macro that can be used in any libraries including APEXes.
Bug: 302113279
Test: TH
Change-Id: I8fc7879a378a3711ae7264c9a2d8b0955895147f
Symbols with __INTRODUCED_IN_LLNDK are available for LLNDK only if
the vendor api level set by the RELEASE_BOARD_API_LEVEL is equal to
or newer than the target vendor api level in __INTRODUCED_IN_LLNDK.
This works only for the vendor variants at the same time ignoring
__INTRODUCED_IN annotation for the vendor variants. On the other
hand, __INTRODUCED_IN_LLNDK will be ignored from non-vendor variants.
Bug: 302113279
Test: build
Change-Id: I5317a73dbc73095f8d5d95131ca4d9ed39df6be1
I'm tired of seeing the bpfmt warning, so fix this for all debuggerd
blueprint files.
Test: Compiles
Change-Id: I3b25365a7272aebe9cbac28455cf8b9b86b04c6e
It's used only by host_init_verifier. This is to remove the unnecessary
dependency from clients of init_host_defaults.
Bug: 326509378
Test: mmma system/core/init
Change-Id: I983fbfe616f0bcb87940c934e19f614d3bf51030
They are still restricted by SELinux, and apps still cannot open them
because they don't have `open` SELinux permission.
Bug: 312740614
Change-Id: I83b7e6ed39f5af64f161af3b3e8e33af0d125b20
Now that V3 is enabled, relax the header version check.
For V3, header op_count_max contains the information of the device size.
Bug: 299011882
Test: snapshotctl map-snapshots on Pixel with V3 format
Change-Id: Ia1cb20b24857136a742e20408ee95e56e98b256a
Signed-off-by: Akilesh Kailash <akailash@google.com>
Alternate dispatching blocks between threads rather than splitting the
data beforehand and then sending to threads in order to ensure that
single threading + multithreading chunks data at the same locations.
Without this change, the resulting op count + data section of the cow
will differ between --enable-threading && --disable-threading at
runtime, which is a result we don't want
Test: th
Change-Id: I3ed8add0552745a281fce2aa7f1d1d32eb547e63
A few files were changed without using the generate script. Modify
the original policy file and generate all of the policy files
properly.
Test: Verify the generated files are the same as before.
Change-Id: Ic6979c06c5d290b3047c8307e86ec1e78a242d44
Add dm stripe in dmctl framework to support stripe on two block devices.
Bug: 321628121
Change-Id: I2f326f19f7ccff1ee03598743022fb702b3e8d6a
Signed-off-by: Ed Tsai <ed.tsai@mediatek.com>
A constexpr ctor is useful for static initialization.
We also modernize the unit test for static variable best practices.
Test: atest libutils_binder_test
Change-Id: If42c0939fb1a2dcb8eb101ed0e10051f67e2150d
It cannot be assumed that file mappings in /proc/<pid>/maps will be
completely backed by the underlying file. [1]
Use MappedFileSize() to deduce the correct ranges for the mlock()
calls when locking system pages in the OTA path.
While at it also clean up the some unreachable code (mlockall()),
and improve error logging.
[1] SIGBUS at https://man7.org/linux/man-pages/man2/mmap.2.html#RETURN_VALUE
Test: Incremental OTA
Bug: 324952273
Change-Id: Ia2ab150e1b8de8c638f5b1acc1de83deb7ac5cff
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
