Print diagnostics when the user requests a dump that is guaranteed to
fail, such as trying to dump a process you can't send a signal to.
Bug: http://b/63008395
Change-Id: I5c6bf2a5751f858e0534990b8d2ab6932eb9f11d
Test: manually tested
Don't pause the threads we're going to dump until after we're about to
fetch their backtraces.
Bug: http://b/62112103
Test: debuggerd_test
Change-Id: Id7ab0464842b35f98f3b3ebc42fb76161d8afbd2
All intercept requests and crash dump requests must now specify a
dump_type, which can be one of kDebuggerdNativeBacktrace,
kDebuggerdTombstone or kDebuggerdJavaBacktrace. Each process can have
only one outstanding intercept registered at a time.
There's only one non-trivial change in this changeset; and that is
to crash_dump. We now pass the type of dump via a command line
argument instead of inferring it from the (resent) signal, this allows
us to connect to tombstoned before we wait for the signal as the
protocol requires.
Test: debuggerd_test
Change-Id: I189b215acfecd08ac52ab29117e3465da00e3a37
.. for ART and the frameworks to link against. In the new stack dumping
scheme (see related bug), the Java runtime will communicate with
tombstoned in order to obtain a FD to which it can write its traces.
Also move things around to separate headers that are private
implementation details from headers that constitute the public debuggerd
API. There are currently only three such headers :
- tombstoned/tombstoned.h
- debuggerd/client.h
- debuggerd/handler.h
Bug: 32064548
Test: make
Change-Id: If1b8578550e373d84828b180bbe585f1088d1aa3
Move the name of the "private/libc_logging.h" header to <async_safe/log.h>.
For use of libc_malloc_debug_backtrace, remove the libc_logging library.
The library now includes the async safe log functions.
Remove the references to libc_logging.cpp in liblog, it isn't needed because
the code is already protected by a check of the __ANDROID__ define.
Test: Compiled and boot bullhead device.
Test: Run debuggerd unit tests.
Test: Run liblog unit tests on target and host.
Test: Run libmemunreachable unit tests (these tests are flaky though).
Change-Id: Ie79d7274febc31f210b610a2c4da958b5304e402
Add some tests for edge cases which may have triggered b/36685795.
Bug: http://b/36685795
Test: debuggerd_test
Change-Id: I20670684c8dae422af157be21e44ba5d6d3214d3
Use an intermediate pipe to detect and report when a requested dump has
completed.
Bug: http://b/35241370
Bug: http://b/35813071
Test: debuggerd_test
Test: manually triggered a background ANR
Change-Id: If14aedf6071288360f1a7853d5a2ee79db121759
Do an in-process unwind for processes that have PR_SET_NO_NEW_PRIVS
enabled.
Bug: http://b/34684590
Test: debuggerd_test, killall -ABRT media.codec
Change-Id: I62562ec2c419d6643970100ab1cc0288982a1eed
Remove debuggerd in favor of a helper process that gets execed by
crashing processes.
Bug: http://b/30705528
Test: debuggerd_test
Change-Id: I9906c69473989cbf7fe5ea6cccf9a9c563d75906
This is needed to connect to the right debuggerd server for the crashing
process. Without this change, the following errors are observed, because a
32-bit process is trying to connect to the 64-bit debuggerd (as opposed to
debuggerd32):
Fatal signal 11 (SIGSEGV), code 1, fault addr 0x0 in tid 14153 (static_crasher)
debuggerd: handling request: pid=14153 uid=0 gid=0 tid=14153
debuggerd: Not allowed to redirect action 0 to 32 bit debuggerd
Bug: 24414818
Change-Id: I2f275fbc804b0abc6e876a743e51dd8494817103
Nick Kralevich