AMBA specification from Arm is a freely available open
standard for the connection and management of functional
blocks in a system-on-chip.
AMBA devices create a device kernel object in /sys/devices/platform
and a kernel object of the bus for the respective device in
/sys/bus/amba. For e.g. for pl180 mmc:
device: /sys/devices/platform/1c050000.mmci
bus: /sys/bus/amba/devices/1c050000.mmci
In first stage init, android creates a symlink from /sys/devices/platform/...
to /dev/block/platform/... for all partitions and then to
/dev/block/by-name for the boot_device used. However this is only done
for devices that "attach" to bus/platform. This patch adds support for
platform devices that attach to bus/amba.
Signed-off-by: Usama Arif <usama.arif@arm.com>
Change-Id: I9da7456407c4f62335c959502d8b2d16026fddfc
modprobe command no longer uses EnableVerbose, opting to do the
associated operations directly.
Test: compile
Change-Id: Iffc8324f37f34de4eeb9a27e92fdf5524afa2220
There is a desire to ensure that modprobe as a service can log to
kmesg to help triage issues, so add support for the -s or --syslog
flag to do so.
SideEffects:
- help goes to stdout instead of stderr.
- verbose flag once, sets DEBUG, twice, sets VERBOSE minimum.
- quiet flag sets WARNING minimum.
Bug: 159424228
Bug: 151950334
Test: use modprobe as a service to load modules, check logs
Change-Id: I884995f364b0fc604861797eb90d7225a372f864
Add a means to specify the modules to load from a file, rather than
on the argument list by adding an optional argument to the --all flag.
This allows modprobe to be designated as a standalone service to load
a long series of modules in the background and be specified
separately. The specified (module.load) file contains a newline
separate list of module names, and supports line comments using '#'
since this file may be maintained by a human or scripting that
requires tagging for regions of the file.
Bug: 159424228
Bug: 151950334
Test: use modprobe as a service to load modules
Change-Id: Id32641c7244e65848fca3a4a82c8d08b2042bf2f
Add support for long options, and fit existing options to upstream
behaviors and extensions. Fix some missing std::endl and
android::base::Join() usage.
Bug: 159424228
Bug: 151950334
Test: manually test long options work
Change-Id: Id792d87d4407628e706aeccecb6e2bce22bcad10
Turns out std::vector::resize() and std::vector::clear() don't
actually deallocate any memory. std::vector::shrink_to_fit() can be
used for this but isn't a 'guarantee'. Instead of trying to get
std::vector to play nice, this change replaces std::vector<uint8_t>
with std::unique_ptr<uint8_t[]>, which is more accurate to how I'm
using this memory anyway.
Test: logging unit tests
Change-Id: I9638e90bbf50bcf316c5aa172c8278ea945d27e7
SerializedFlushToState::PopNextUnreadLog() was calling
AddMinHeapEntry() to replenish the element that was just popped off of
the heap, however AddMinHeapEntry() also manages reference counts for
the buffers, and this resulting in the following scenario:
PopNextUnreadLog() returns a pointer referencing log buffer #1
AddMinHeapEntry() sees that all logs from buffer #1 has been read, so
it decrements the reference count
The caller of PopNextUnreadLog() uses the result which references
invalid memory.
This calls CheckForNewLogs() within HasUnreadLogs() instead of
requiring a separate call, which fixes an additional issue where
continuing from the loop in SerializedLogBuffer::FlushTo() may not
pick up subsequent logs in a given log buffer, since CheckForNewLogs()
wouldn't be called. This was exacerbated by the above change.
This adds a test to check the reference counts for this case and fixes
an argument mismatch in SerializedFlushToStateTest.
This adds the corpus that surfaced the issue.
Bug: 159753229
Bug: 159783005
Test: these unit tests, run fuzzer without error
Change-Id: Ib2636dfc14293b7e2cd00876b9def6e9dbbff4ce
On some devices we see a weird in which /metadata/apex will have a wrong
selinux label. This will effectively prevent such devices from getting
any apex updates. Since we haven't figured out a root cause for this
bug, it's safer to explicitly call restorecon on /metadata/apex to make
sure it's correct.
This change shouldn't affect a normal boot flow, since /metadata/apex
will already have a correct label and restorecon_recursive will be a
no-op.
Test: rm -Rf /metadata/apex && \
mkdir /metadata/apex &&
mkdir /metadata/apex/sessions
Bug: 149317789
Merged-In: I971ffe35c93bb79d9e71106c24515ec0ee70333a
Change-Id: I971ffe35c93bb79d9e71106c24515ec0ee70333a
(cherry picked from commit cf7b6bad55)
1) Add fuzzer for SerializedLogBuffer
2) Enable fuzzing on host
3) Read logs after writing them
4) Silence log tags error on host
Test: run these fuzzers
Change-Id: Id5f0394546ecbccf5281e3d8855853be90dee3f0
Logd never deletes SerializedLogBuffer, so it seemed reasonable to
detach the deleter thread, however unit tests and fuzzers do delete
SerializedLogBuffer, so we must safely join the deleter thread in the
destructor.
This simplifies the deleter thread code and ensures that only one
deleter thread will be running at a time.
Test: fuzzing works
Change-Id: I69c7447109898a1bb7038a03337cadacb1213281
Fix a bug that was causing cap_set_flag() fail and logd to exit.
Bug: 159588327
Test: caps are set correctly and logd functions with both, one of, or
none of klogd and auditd enabled.
Change-Id: Ia51f078ad848535ce1ac29edd8a56a2b686a12cc
Previously, colors were specified from the 216 additional colors, which
typically specify an exact RGB color value. Instead, use escape codes
for standard colors (default foreground, red, green, yellow, etc.),
which are commonly adjusted by terminal emulators user preferences.
Bug: 159503129
Test: adb logcat --format color
Test: atest liblog
Change-Id: I0b10a70a76a29d896d04d6c49e716b09cb09b19a
If the flashed boot image is smaller than the block device, the AVB
footer will not be at the end of the partition. Although images are
normally created to match the partition size the GKI boot.img must work
on all devices, and the size of the boot partition will vary.
Copy the AVB footer to the end of the partition before flashing, if it
is not there already.
Bug: 159377163
Change-Id: I5a5e25fb54dc9d6a2930fda63434968808ffa1f0
It's in the progress output, but typically gets truncated.
Bug: https://issuetracker.google.com/131112559
Test: adb bugreport
Change-Id: I35ba4f39941aea68f2412e7b64feaac4da2f82e3
In order of severity:
1) Add a CHECK() that a pointer is not nullptr, where the analyzer
believes this is possible.
2) Add `final` appropriately to functions called from constructors.
3) Add missing cloexec flags.
4) Add missing `noexcept` and other subtle performance warnings
Test: build with clang-tidy
Change-Id: Ifd9a1299a51027a47382926b2224748b5750d6cf
d3ecc66b9c "liblog: support extended logger_entry headers" removed
the logger_entry::msg variable and instead uses hdr_size as an offset
from logger_entry to where the message starts in parent log_msg
buffer.
In pmsg, hdr_size is not recorded and therefore uninitialized when it
was referenced, causing corruption when reading last logcat. This
change uses sizeof(log_msg->entry) instead.
Bug: 158263230
Test: last logcat works
Change-Id: Ic01e73bf4d8ba8419cc770138565aa1210a6078b
Adb client does not use these values, so just ignore it.
Bug: b/158824677
Test: 'adb -H 127.0.0.1 -P 5037 devices' does not crash.
Change-Id: I4dada6e5e1714157bbf1af370510dfa7bfbd6b17
Also generic syntax clean up and removing some unused aspects (sorting
the list and the TODO increasing performance based on this sorting).
Test: logging unit tests
Change-Id: I56bb3866c13cb4c28bd48665bf32ec620cf0278e
Documentation is synchronized to match external, to ease updating.
blacklist is replaced with ignorelist or ignore depending on context.
Test: none
Change-Id: I6db7ad321684759e3c5ac1f66f940b6e8a5709a0
Usama Arif