This protocol documentation is spread out among various functions
where it is implemented. This change makes a single
README.protocol.md file with a high level overview, referencing the
struct names where useful.
Test: n/a
Change-Id: I83c9f484352b489b4a20cce241d92413f780f9ec
logger_entry and logger_entry_v2 were used for the kernel logger,
which we have long since deprecated. logger_entry_v3 is the same as
logger_entry_v4 without a uid field, so it is trivially removable,
especially since we're now always providing uids in log messages.
liblog and logd already get updated in sync with each other, so we
have no reason for backwards compatibility with their format.
Test: build, unit tests
Change-Id: I27c90609f28c8d826e5614fdb3fe59bde22b5042
I'm about to make a bunch of changes that are safe for backwards
compatibility, but would otherwise flag the checker, so it's time to
temporarily disable it.
Test: CLs pass despite making header changes
Change-Id: Ibc2d4ae51fb8e6125b9117ccd92bf821db945e67
This reverts commit 5f8162b086.
Reason for revert: Turns out they're being used.
Merged-In: Iad9010190c7a4140b69dc553df5debdd88dcf81a
Change-Id: Iad9010190c7a4140b69dc553df5debdd88dcf81a
These functions and headers were all mistakenly added to the vndk.
They should not be used by vendors.
Test: these symbols do not appear in vendor libraries
Merged-In: I03919b437c2d9f0e573b7a6b40249ed12fe874b9
Change-Id: I03919b437c2d9f0e573b7a6b40249ed12fe874b9
1) We don't need two copies of log_id_t
2) We don't need misleading sizeof_log_id_t or typeof_log_id_t macros
3) logd should use android_log_header_t explicitly for its recv buffer
size
4) Following on from b/129272512, we're settling that returning
LOG_ID_MAX is an acceptable return value from
android_name_to_log_id().
Bug: 129272512
Test: build, liblog, logcat unit tests
Change-Id: I67fb964a4a0ae9cb6e1514ca110e47e00dfcfa9a
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
The log_time struct satisfies all of the requirements for an
implicitly created copy constructor to be present, so not defining one
here does not have any real effect.
We don't want to delete the copy constructor for the rationale given
either; modern C++ favors passing small types by value instead of by
reference as the compiler has more opportunity for optimization in
that case. That's especially true here, where the size of this struct
is the size of a pointer on 64 bit systems.
Test: the copy constructor exists for log_time
Change-Id: Id314ca7729f4b1ca02adb6c7f0ae759b22be2a5c
Continuing the speed up / clean up from the last change.
Enable a subtest that was previously disabled as well. It passes 100s
of cycles now on CF.
Test: liblog-unit-tests
Change-Id: Ifff6f400c3736a1a857a3fdaf22d7ef1794abf9b
A lot of liblog tests follow this pattern:
1) Write a log message
2) Sleep ~1 second
3) Use the non_blocking log reader to dump all log messages
4) Test those log messages
This causes running back to back tests to be very slow and still
allows for some amount of flakiness if the system is very loaded.
This change replaces that pattern with the following:
1) Write a log message
2) Set an alarm for 2 seconds as a test timeout
3) Read logs with the blocking reader until finding the expected log
messages
4) Test those log messages
5) Use the non_blocking reader to dump all log messages
6) Re-test those log messages, to ensure no duplicates, etc, which
isn't done in step 3).
Despite dumping the logs twice, the tests are orders of magnitude
faster in the good case, and should be less prone to flakes.
Test: liblog-unit-tests
Change-Id: Iedf473316576b8007746fe3560815bde1813787a
Per jmgao@, we still need to worry about unaligned integer accesses.
In any case, we already have the packed structs for all of the
unaligned data that we're reading, so this change favors using those
packed structs.
Bug: 142256213
Test: x86,arm32,arm64 liblog-unit-tests
Change-Id: I21fc629eac49895d03b5b31daa4cc494b0c4c230
There is an alarm() call that provides a 30 second timeout in case
logd is unavailable. The main reason for this is in the case that logd
is crashing, debuggerd is ptrace'ing logd, and tombstoned is
attempting to dump log messages. In this case, with no other checks
and without this alarm, tombstoned will deadlock when dumping log
messages.
However, tombstoned already has two mechanisms to prevent the above
situation from happening:
1) It checks that the thread name that is is dumping is either logd or
starts with "logd." and skips dumping logs in this case.
2) It does not dump logs if it is running in process for any process.
Calling alarm() or modifying signal handlers from general purpose
libraries is not recommended either, so without a strong reason to
keep this, this change removes it.
This also shortens the liblog.wrap_mode_blocks test time, since the 30
second issue that it ensures does not happen has been fundamentally
removed.
Test: `kill -8 `pidof logd`` succeeds without delay
Test: liblog, logd unit tests
Change-Id: Id8a40544645d220e49f7ba299201af80a0c44de9
Fix a typo where I check socket()'s return value for 0 instead of -1
as an error.
Remove code that checks if socket() returns 0 as the actual fd that it
returns. This should not happen in any well formed program.
Test: liblog unit tests
Change-Id: I1d878e85d9a39155d68c6c84e9cf9b0db8d1b3a4
We disabled then re-enabled a set of tests believing that they were
stable; they were not, so we disable them again while we investigate
their stability.
A majority of tests filter the logs from logd based on pid, so running
in isolation helps them not see unexpected information from other test
runs.
Bug: 138876729
Bug: 142041379
Test: run via gtest with gtest_repeat=10 without failure
Test: run via atest 5x times without failure
Test: observe that isolated applies to both gtest and atest
Change-Id: I757d52dd3233323be9519625868b2fd2aaa41aeb
These tests are flaky, but we're not seeing what the failure strings
are.
Bug: 142041379
Test: force a failure and see the right error message
Change-Id: Icd7777e5c309cac3b98ce65925980965a3cc3753
The old code did not free the transports, just unlink their nodes from
the linked list, so there was no race condition between close() and
other threads writing to the logs. By settings these to nullptr, I
introduced a race condition, but setting them to nullptr isn't
necessary, so let's simply not do that.
Test: liblog-unit-tests
Change-Id: Iec0b680addd13b5d30bd91ccef5bdeab6bf797b0
The "branchless" macro generates slightly worse code than std::min or
<sys/param.h>'s MIN.
Test: treehugger
Change-Id: I92c17325383bd6116c7b4736d42f01f7a9bb81a3
These checks are not needed; all callers are in this file and there's
only one possible situation: that we have valid pointers and sizes.
Test: liblog-unit-tests, log.tag.* properties still work
Change-Id: I8b385d5124c2d93cd99a352e30f745b075c8bd09
Now that we only have one transport in a given build configuration,
there is no need to have these lists.
Test: liblog-unit-tests
Change-Id: I3fdcdc33c1224a9522080ea06f36f14c83d946ac
There are no users; future versions will need to be more generic to
support the libbase style Logger/Aborter options.
Test: build, liblog-unit-tests
Change-Id: Ia4571cd39d3e499f18306920ecbf40ea8878fb81
There are no users of the liblog stderr logger, but 66 users of
android::base::StderrLogger. We'll prefer that format and work to
merge it into liblog.
Test: liblog-unit-tests
Change-Id: Ifad24b27ac0f51379b925f6644caa1f6f3d9ad81
Previously this test would rely on ro.debuggable being true, but there
are now some circumstances where ro.debuggable is true, yet `su` does
not exist. Therefore we only run this test when it is root.
Also simplify some of the test macros.
Bug: 140446213
Test: passes as root, skips as non-root
Change-Id: I0651963d5c7d4f5308989ab6b04aab1042094e5a
liblog has left over code from local_logger that allows for reading
from multiple sources and merging the contents. Since we've already
removed local_logger, this change removes the rest of this code.
Test: liblog-unit-tests
Change-Id: I5685ad6c1e7cbcaa0a660ed10f47714784a40791
Some tests were meant to be run with logd only and were ifdef'ed based
on USING_LOGGER_DEFAULT. Unfortunately a previous change removed the
appropriate #define, so these tests weren't being run at all. They
passed multiple times on CF, so they should still be stable.
Except for one test for __android_log_event_list. We removed that
struct, so this change removes the test as well.
Test: liblog-unit-tests on CF (5 runs)
Change-Id: Ifaf3dbfdc5c714aead3f26c333e9cf19a1ed86c6
Enable native bridge support for libbase, liblog,
libziparchive and libpropertyinfoparser.
This makes it possible to use them in binaries for translated
architectures.
Bug: http://b/77159578
Test: make
Change-Id: If67ce92288b17a052ea1e79a268e284f7d941439
