logd currently only reports the UID of a log message for 'privileged'
readers (those with a uid or gid of root, system, or log). However,
UIDs are not particularly sensitive. Much more importantly,
non-privileged readers can only see less messages from their own UID,
so this restriction is essentially a no-op, as those readers will
already know their own uid.
Test: liblog and logd unit tests
Change-Id: I9da7d15eb840ba3200128391e70d618eec79f988
This document does not list every change in the unwinder between
Android versions. Instead it attempts to only include information
that someone building an app targeting a specific version of Android
might need to know to make sure their app can unwind properly.
It also tries to describe the way that stacktraces might be displayed
differently between Android versions.
Test: NA
Change-Id: I4029053f763f3471f7ddb5da9b1de2d325ead455
There's no point in client side security checks in this library. If a
process has access to these files, then they'll be able to do any of
these operations themselves.
Test: liblog unit tests
Change-Id: I75d4e1509eb8ff0ac4579f820a8968f4f5ad4e06
Enable more of the disabled tests. These should not be flaky and have
value.
The dual_reader test is rewritten in the style of RunLogTests() as
well.
Test: 100 iterations of these tests on CF without failure
Change-Id: I15de9e21b066aa22635cc0bd71b51e2648198823
On some devices the previous implementation of GetHash() was failing at
reading files, returning "Bad file descriptor" error.
Using ReadFileToString() that seems to have fixed the issue.
Test: libsnapshot_test
Change-Id: Ie3598d8bad5b3db1cf816c120e6922a066aa2743
Signed-off-by: Alessio Balsini <balsini@google.com>
The Linux kernel's dm-snapshot relies on a COW device to keep trace of
all the modified sectors.
The COW device has a precise structure, which allows to compute its
space requirement in advance, as a function of:
- sector size;
- chunk size;
- list of modifications applied to the snapshot device.
Create a class that implements the COW device space occupancy given this
information.
Bug: 140835698
Test: libsnapshot_test
Change-Id: I50e3815741ee689d14fc3611532ff9d3b3e0e879
Signed-off-by: Alessio Balsini <balsini@google.com>
Expose API to return name of task profile for cpuset/sched policy so
that libprocessgroup clients using SetTaskProfiles directly don't have
to maintain the mapping. This reduces the risk of inconsistency and saves
memory.
Bug: 139521784
Test: atest libcutils_test:SchedPolicy
Change-Id: I414312a038613913fb6a827bdcefceb3dec21264
