Maps output now displays fault address location more intelligently. If
the fault is not in a mapped region, it now shows where that address is
with respect to the other maps.
In addition, the size of the map is now printed as part of the output.
Also, crasher now supports an "mmap" option which mmaps/munmaps a region
of memory and then attempts to access it, causing a fault address in
between mapped regions that can be used to test that new part of the
maps output.
Change-Id: Ia5e1926802bdfcbbdb7857e3631ddf395ae0c5b8
If the fault address is not within a mapped region, it logs an error
message after the output. Otherwise, it prefixes the location of the
fault address with "--->" to make it easier to locate.
Change-Id: I330adaade4402ffeb09f1a6d34a944c2f054d06d
Now the functionality implemented by these semi-confusing cases has been
replaced with the same logtype enum behavior that is easier to
understand, and cases that used log-looking behavior to print to logcat
(when log = NULL) now use the more transparent ALOGE/ALOGD functions.
Change-Id: I7e38f2d4ca74a828df4d2266b3ea34edd3c6f5bb
Now the map output is only sent to the tombstone, and the entire
contents of /prod/$PID/maps is logged, not just 3 lines. Additionally,
crasher now supports "crasher SIGSEGV-non-null", which attempts to write to a
dereferenced function address, causing a SIGSEGV at a non-zero address.
This new crasher mode can be used to test the new maps output.
Bug: 15343662
Change-Id: I796d92e8352a6b9714bbbfe96f3143c56565ef2f
The system by which debuggerd filters its output to different locations
is now based on an enum called logtype with easy to understand
categories for log messages (like THREAD, MEMORY, etc.) instead of the
old, fairly esoteric scope_flags variable. Now much of the output that
previously went to logcat does not show up on the screen, but all output
can be found in the tombstone file. In addition, the tombstone's
location is now printed so it can be located easily.
Bug: 15341747
Change-Id: Ia2f2051d1dfdea934d0e6ed220f24345e35ba6a2
- auditd spawn log copy to events and main
- logcat delete events as one of the default logs
- debuggerd do not collect events.
- squish multiple spaces
- switch from strcpy to memmove for overlapping buffers
BUG: 14626551
Change-Id: I89b30273ce931ed2b25a53ea9be48e77f4c1bbf4
- auditd switch to recording logs to events log id
- logcat add events as one of the default logs
- debuggerd collect events log as well.
ToDo: debuggerd & bugreport collect intermixed logs.
BUG: 14626551
Change-Id: I958f0e729b7596748be57488a38824db5645be7b
Bionic needs to re-raise various signals, which means the si_code
debuggerd sees has been clobbered. If bionic sends us the original
si_code value, we can use that instead of the one we see when the
ptrace the crashed process' siginfo.
Change-Id: If116a6bc667d55a6fb39b74f96673292af4e4c8c
libselinux selinux_android_restorecon API is changing to the more
general interface with flags and dropping the older variants.
Also get rid of the old, no longer used selinux_android_setfilecon API
and rename selinux_android_setfilecon2 to it as it is the only API in use.
Change-Id: I1e71ec398ccdc24cac4ec76f1b858d0f680f4925
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
This one makes dump_memory reasonably architecture-agnostic so it is
possible to share the code between architectures.
It also includes a few small improvements in tombstone.cpp.
Change-Id: Ib8a9599bfa420b41e80207988e87aee1b9d79541
Signed-off-by: Kévin PETIT <kevin.petit@arm.com>
Update to handle the new optimized way that libunwind works.
In addition, a small refactor of the BacktraceMap code.
A few new tests of for good measure.
Change-Id: I2f9b4f5ad5a0dfe907b31febee76e4b9b94fb76f
This includes removing the map_info.c source and replacing it with the
BacktraceMap class to handle all map related code.
Change all callers of libbacktrace map functionality.
Also modify the corkscrew thread code so that it doesn't need to build
the map twice (once in the corkscrew format and once in the libbacktrace
format).
Change-Id: I32865a39f83a3dd6f958fc03c2759ba47d12382e
Use the libbacktrace C++ interface instead of the C interface in debuggerd.
Reformat the debuggerd code to be closer to Google C++ style.
Fix all debuggerd casts to be C++ casts.
Add a frame number to the frame data structure for ease of formatting and
add another FormatFrameData function.
Change the format_test to use the new FormatFrameData function.
Modify all of the backtrace_test to use the C++ interface.
Change-Id: I10e1610861acf7f4a3ad53276b74971cfbfda464
This is part 1, only including the bare minimum changes because
our diff tool doesn't easily show differences when a file moves. This
also breaks it into a small chunk in case some other changes break things,
as unlikely as I think that will be.
Change-Id: Ib7a3e7a2cc1ac574d15b65fda23813ebcf5d31af
Dmitriy Ivanov