Previously on Android Things, we used a vendor public.libraries.txt
file. This cl enables us to tag our library correctly.
Bug: 78226207
Test: test app works
Change-Id: I9e69717e5968a903e84f59c1d889c8e4cf9bcc35
Just the symlink for now. If this sticks, I'll come back to remove the code.
Bug: N/A
Test: `toolbox dd --help`
Change-Id: I9b967e9246f42db0d1f48d9d147c538d57fb3bc8
Instead of creating tombstone FDs in place and passing them out to
crash_dump directly, create them as O_TMPFILEs and link them into place
when crash_dump reports success, to avoid creating empty tombstones
in cases like an aborting thread racing with another thread that
manages to cleanly exit_group before the dump finishes.
Bug: http://b/77729983
Test: debuggerd_test
Test: adb shell 'for x in `seq 0 50`; do crasher; done'
Change-Id: I31ce4fd4a524abf8bde57152450209483d9d0ba9
Host services are attempted after handle_host_request, which means that
failing to find a transport to give to handle_forward_request shouldn't
send an error over to the other end.
Bug: http://b/78294734
Test: `adb track-devices` with multiple devices connected
Change-Id: I46c89cc1894b51d48fea7d4e629b1d57f73e3fd6
This will prevent services from reaching out to logd if this tag is
present in the event log.
Bug: 64734187
Test: tree-hugger
Change-Id: If117e1c0cfa678af4190913f0ca87f4e92c54373
Report kernel_panic,sysrq,livelock,<state> reboot reason via last
dmesg (pstore console). Add ro.llk.killtest property, which will
allow reliable ABA platforms to drop kill test and go directly
to kernel panic. This should also allow some manual unit testing
of the canonical boot reason report.
New canonical boot reasons from llkd are:
- kernel_panic,sysrq,livelock,alarm llkd itself locked up (Hail Mary)
- kernel_panic,sysrq,livelock,driver uninterrruptible D state
- kernel_panic,sysrq,livelock,zombie uninterrruptible Z state
Manual test assumptions:
- llkd is built by the platform and landed on system partition
- unit test is built and landed in /data/nativetest (could
land in /data/nativetest64, adjust test correspondingly)
- llkd not enabled, ro.llk.enable and ro.llk.killtest
are not set by platform allowing test to adjust all the
configuration properties and start llkd.
- or, llkd is enabled, ro.llk.enable is true, and killtest is
disabled, ro.llk.killtest is false, setup by the platform.
This breaks the go/apct generic operations of the unit test
for llk.zombie and llk.driver as kernel panic results
requiring manual intervention otherwise. If test moves to
go/apct, then we will be forced to bypass these tests under
this condition (but allow them to run if ro.llk.killtest
is "off" so specific testing above/below can be run).
for i in driver zombie; do
adb shell su root setprop ro.llk.killtest off
adb shell /data/nativetest/llkd_unit_test/llkd_unit_test --gtest_filter=llkd.${i}
adb wait-for-device
adb shell su root setprop ro.llk.killtest off
sleep 60
adb shell getprop sys.boot.reason
adb shell /data/nativetest/llkd_unit_test/llkd_unit_test --gtest_filter=llkd.${i}
done
Test: llkd_unit_test (see test assumptions)
Bug: 33808187
Bug: 72838192
Change-Id: I2b24875376ddfdbc282ba3da5c5b3567de85dbc0
If LLK_ENABLE_DEFAULT is false, then check "ro.llk.enable" for "eng",
also the default value if not set, and then check if userdebug build
to establish a default of true for enable. Same for
ro.khungtask.enable.
Test: llkd_unit_test report eng status on "userdebug" or "user" builds
Bug: 33808187
Bug: 72838192
Change-Id: I2adb23c7629dccaa2856c50bccbf4e363703c82c
Introduce a standalone live-lock daemon (llkd), to catch kernel
or native user space deadlocks and take mitigating actions. Will
also configure [khungtaskd] to fortify the actions.
If a thread is in D or Z state with no forward progress for longer
than ro.llk.timeout_ms, or ro.llk.[D|Z].timeout_ms, kill the process
or parent process respectively. If another scan shows the same
process continues to exist, then have a confirmed live-lock condition
and need to panic. Panic the kernel in a manner to provide the
greatest bugreporting details as to the condition. Add a alarm self
watchdog should llkd ever get locked up that is double the expected
time to flow through the mainloop. Sampling is every
ro.llk_sample_ms.
Default will not monitor init, or [kthreadd] and all that [kthreadd]
spawns. This reduces the effectiveness of llkd by limiting its
coverage. If in the future, if value in covering kthreadd spawned
threads, the requirement will be to code drivers so that they do not
remain in a persistent 'D' state, or that they have mechanisms to
recover the thread should it be killed externally. Then the
blacklists can be adjusted accordingly if these conditions are met.
An accompanying gTest set have been added, and will setup a persistent
D or Z process, with and without forward progress, but not in a
live-lock state because that would require a buggy kernel, or a module
or kernel modification to stimulate.
Android Properties llkd respond to (*_ms parms are in milliseconds):
- ro.config.low_ram default false, if true do not sysrq t (dump
all threads).
- ro.llk.enable default false, allow live-lock daemon to be enabled.
- ro.khungtask.enable default false, allow [khungtaskd] to be enabled.
- ro.llk.mlockall default true, allow mlock'd live-lock daemon.
- ro.khungtask.timeout default 12 minutes.
- ro.llk.timeout_ms default 10 minutes, D or Z maximum timelimit,
double this value and it sets the alarm watchdog for llkd.
- ro.llk.D.timeout_ms default ro.llk.timeout_ms, D maximum timelimit.
- ro.llk.Z.timeout_ms default ro.llk.timeout_ms, Z maximum timelimit.
- ro.llk.check_ms default 2 minutes sampling interval
(ro.llk.timeout_ms / 5) for threads in D or Z state.
- ro.llk.blacklist.process default 0,1,2 (kernel, init and
[kthreadd]), and process names (/comm or /cmdline) init,[kthreadd],
lmkd,lmkd.llkd,llkd,[khungtaskd],watchdogd,[watchdogd],
[watchdogd/0] ...
- ro.llk.blacklist.parent default 0,2 (kernel and [kthreadd]) and
"[kthreadd]". A comma separated lists of process ids, /comm names
or /cmdline names.
- ro.llk.blacklist.uid default <empty>, comma separated list of
uid numbers or names from getpwuid/getpwnam.
Test: llkd_unit_test
Bug: 33808187
Bug: 72838192
Change-Id: I32e8aa78aef10834e093265d0f3ed5b4199807c6
Ensure dropbox has the new dropbox_data_file label.
Bug: 31681871
Test: ls -dZ /data/system/dropbox
u:object_r:dropbox_data_file:s0 /data/system/dropbox
Change-Id: Ia67646f4a789155e20650c33fe4412cae7f930d2
This change uses a context manager to create the fake ADB servers (and
cleanly tear them down.
Bug: 74411879
Test: python system/core/adb/test_adb.py
Change-Id: I722d2c4135259b1b0ef00a1510aa8402e87ecf72
libziparchive is explicitly marked as double_loadable since it is one of the
(indirect) dependencies of the LLNDK library libvulkan
and at the same time the lib itself is marked as VNDK. Such lib can be
double loaded inside a vendor process.
Note: even without this change, the library is already capable of being
double loaded due to the dependency graph around it. This change is to
make it explicit so that double loading of a library is carefully
tracked and signed-off by the owner of the lib.
Bug: 77155589
Test: m -j
Merged-In: Id0a731d553bbb68b84bca421500c94b7b35eca14
Change-Id: Id0a731d553bbb68b84bca421500c94b7b35eca14
(cherry picked from commit 730728cbb4)
This change returns a different value (-EALREADY) when a connection has
already been established, as opposed to a real connection failure (which
still returns -1).
Bug: 74411879
Test: Opened a socket, tried to adb connect to it,
got "failed to connect to localhost:1337"
Change-Id: Ic216ddef7f28eb43ca750f9e51d068c077d54b07
Changes to init's behavior during early mount:
1. Mounting of tmpfs on /mnt is moved from init stage to early mount.
2. init creates /mnt/vendor used to mount vendor partitions.
3. If a device tree fstab entry for early mount specifies a mount point
under /mnt/vendor e.g. /mnt/vendor/foo, init will create
/mnt/vendor/foo mount point.
Bug: 64905218
Test: change dt fstab entry to mount persist to /mnt/vendor/persist;
mount point is created correctly, and partition is mounted in early
mount. See go/pag/1069774
Test: device boots with /mnt/vendor and previous contents of /mnt present,
and selinux label "mnt_vendor_file" is applied correctly.
Test: cts-tradefed run commandAndExit cts --skip-all-system-status-check
--primary-abi-only --skip-preconditions -m CtsAppSecurityHostTestCases
-t android.appsecurity.cts.PermissionsHostTest
Change-Id: I3739130739eadf508355c7f2531366fcaed74175
Merged-In: I3739130739eadf508355c7f2531366fcaed74175
(cherry picked from commit b511475664)
Treehugger Robot