Add O_CLOEXEC to various file descriptor calls, to avoid
leaking file descriptors to dumpstate's child processes.
Bug: 18342188
Change-Id: I74c47a98dfddc29c618067ad53d879b98ed1d87a
Call logcat -L to pull any LAST Android logs. If the kernel is not
configured for PSTORE and PSTORE_PMSG, the hopes are the empty
content will pressure vendors to slice up and configure support.
Change-Id: I5fddfa1e0f59f24fccc30b257ba68af8a8cf8640
It turns out dump_file is used on a number of /proc and system files.
In one case, the read of a file stalled and caused a bugreport to
hang forever. It's still possible if there is a kernel bug that this
could stall forever, but less likely.
Also, change the return type of nanotime to uint64_t.
Testing:
- Created a named fifo and verified that dump_file fails with a timeout.
- Created a large /data/anr/traces.txt to verify that large files still
dump properly and that the additional NONBLOCK parameter doesn't cause
a problem.
- Created a dummy /data/tombstones/tombstone_00 to verify that the
dump of these files still works.
- Compared a dump using the old dumpstate to the new dumpstate to verify
nothing obviously different.
Bug: 19117030
Change-Id: I0d3dd27583c853cdaccd2fd278748cb5f9ccd4fb
This option doesn't work with the current selinux protections and
doesn't serve much of a purpose. You can get the same results running
this:
dumpstate | gzip > /data/local/tmp/dump.txt.gz
Bug: 19271141
Change-Id: Icc76200df33dc708e30c556ec8a0f393f995fe7c
Use the native stack dumping functions that allows time outs. If
debuggerd locks up, before a bugreport would hang forever. Now
it will timeout properly and still get all of the other information.
Bug: 18766581
(cherry picked from commit 457731f69e)
Change-Id: I39e8e9c60209e3ef9efac795fedb8e1edce2bd3e
Use the native stack dumping functions that allows time outs. If
debuggerd locks up, before a bugreport would hang forever. Now
it will timeout properly and still get all of the other information.
Bug: 18766581
Change-Id: I85053b8dcfe6224e2b64b4d8f7f2ef448b3cda34
The previous version printed out the nanoseconds elapsed, not seconds.
Bug: 18766581
(cherry picked from commit 67c5a8af9e)
Change-Id: Icbaaee83a92767694fd98e3c790f36f4d24681b0
Sometimes dumping threads takes a long time and bugreport times
out. This change will cause us to accept the bugreport socket connection
before dumping threads and should avoid the failed to connect to dumpstate
service problems we've seen.
Bug: 17758374
Change-Id: I80afa0353cf1c340873f481a8d1d7faffff54120
Previously, the vibration was not performed until after stacks
were gathered which takes a long time. Moved the vibration
to happen earlier so we provide better user feedback for the
three-button salute when collecting a bug report.
Deleted some dead code for playing begin/end sounds.
Improved the timing measurement code to help track down why
bug reports are so slow. (They take over a minute now which
can cause us to lose valuable diagnostic information.)
Bug: 17474152
Change-Id: Iac73f7993d7dc85196aad96f459b22fd4a710f94
The clock() function returns the processor time used by the process. This
is not a good timeout mechanism since the code is suspended most of the
time waiting for the forked process to finish. Replace with the time()
function.
Bug: 17154069
Change-Id: Ib383329f9db269445d71a100553b08e71fddda3f
Leave default signal handler (terminate) for parent process,
add SIG_IGN as signal handler for children and let them
go down when the parent gets SIGPIPE.
Bug: 17109154
Change-Id: Id33db3e97a32f289eb2a9a1a0ca8acbe3dcd285d
1. Explicitly dump IP addresses.
Currently, some IP addresses are dumped using netcfg, but that
only dumps the first IPv4 address on each interface. Instead,
call ip -4 addr and ip -6 addr explicitly to dump all IPv4 and
IPv6 addresses on the system.
2. Disable dumping /proc/net/{ipv6,}route, because:
- We already dump all IPv4 and IPv6 routes in the tables that
we use.
- /proc/net/route is confusing because it only includes routes
in the main table, which are all but unused. It's also in
unreadable host-byte-order hex.
- /proc/net/ipv6_route is confusing because it includes routes
from all tables but does not say what table they are in.
3. Instead of dumping the contents of /proc/net/arp , use
"ip -4 neigh show" and "ip -6 neigh show" to dump the
neighbour caches for both IPv4 and IPv6.
Bug: 16663736
Change-Id: Id3e509b877ab7b00eb2399b6a9868b12245da2f0
dumpstate was not dumping any stack traces for vm processes because
it was failing the string compare for /system/bin/app_process.
64-bit devices use app_process32 and app_process64 instead of
app_process, and zygote64 alongside zygote. Change the string
matching to be prefix matching.
(cherry picked from commit 8eb25d552b)
Change-Id: I6b1568161fae278f0e6107990e5b750cf0ca902b
Increased the maximum time dumpstate will wait for SIGQUIT process
to finish dumping its thread stacks to the logfile to 5 seconds.
Bug: 14057177
Change-Id: I0b43004512855d202f2fe0ea7b0e934e77a3a070
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 is a duplicate of the associated human-readable dumps
of these services, but much better for automated parsing.
Change-Id: I902b768b03aeac1472f03f96913f9b8ada5dba9c
When dumpstate ignores SIGPIPE it can lead to a cascade of tombstones /
coredumps since many of its children don't handle or ignore it. It's
best to just exit dumpstate once the pipe is broken.
Change-Id: Ic0c57ecf4171f0c0a07837e51c41cb1876e1350c
