When a file descriptor is closed before removing it from the
epoll set, it will normally be removed automatically from the
epoll set by the kernel. However if there exists a duplicate
then the original file descriptor may remain in the set and
continue to receive events until all duplicates have been closed.
Unfortunately due to kernel limitations we need to rebuild the epoll
set from scratch because it may contain an old file handle that we are
now unable to remove since its file descriptor is no longer valid.
No such problem would have occurred if we were using the poll system
call instead, but that approach carries others disadvantages.
Bug: 19715279
Change-Id: If1ab8ebda0825755a416d513e888942a02ee3948
pixelflinger should not be used for new projects and should be moved out
of system/core at some point. As the first step, move all its headers
under system/core/libpixelflinger/include and update its Android.mk
files so they're not referring to the absolute system/core path anymore.
Change-Id: I7acc3ef5b2e21d8ba6fe939ea8d3ec4c41959591
Signed-off-by: Greg Hackmann <ghackmann@google.com>
Added code to protect against situations that may occur when a
Looper callback has the side-effect of closing the file descriptor that
it is watching before it returns. This code pattern is very
convenient for implementation but it does expose issues in how
the list of callbacks is maintained. In particular, we
need to watch out for file descriptors which have been reused.
This change may resolve previously unexplained ANRs associated with
log messages such as: "Error modifying epoll events for fd 44, errno=2"
Bug: 10349083
Change-Id: I20eedf6ffbdeda382653ca0104962505194741b0
The loop isn't technically idle at this time, it's just checking
whether any file descriptors have pending events. However it's
still a good signal as to whether the loop is alive.
Bug: 19532373
Change-Id: I555c473e70ffd8a56e1b10aa60026eb674a16de9
First stage of adding a new dataSpace field for ANativeWindow,
for communicating format- (and endpoint-) dependent information
about graphics buffers. For most formats, dataSpace describes the
color space of the buffer, while format describes the memory layout.
For some formats, the dataSpace may also specify that the buffer
contains depth measurements, encoded images, or other kinds of
information that is not necessarily a simple 2D image.
Rename the existing colorspace enumeration to dataspace, with an added
dataspace for depth, and sRGB gamma-corrected and linear colorspaces.
Add in a definition for Android depth point clouds as a
variable-length list of float-triplet coordinates, as the underlying
layout of buffers with format HAL_PIXEL_FORMAT_BLOB and dataSpace of
HAL_DATASPACE_DEPTH.
Also remove now-unnecessary sRGB HAL graphics formats, and remove the
alias RAW_SENSOR that was left in to ease transition to RAW16.
Change-Id: I8797f67fb9c2b18da5975f2145303ca0bf98e62d
Separate out fetching DHCP results from starting the daemon
(for either discover or renew).
Renamed dhcp_do_request() to dhcp_start().
Renamed dhcp_do_request_renew() to dhcp_start_renew().
Added new dhcp_get_results().
Callers of the prior versions of dhcp_do_request* now separately
call dhcp_get_results().
Bug: 19422416
Change-Id: I05447853d444015e6014661dda1bb177b58fe463
Used to pull the Android log messages after a reboot. Adding
an ANDROID_LOG_PSTORE flag to the mode parameter in calls to
android_logger_list_alloc() and android_logger_list_alloc_time().
The side effects are that android_logger_clear() and
android_logger_list_read() will react with the user space
pstore driver. Forms a companion to the pstore console logs.
Change-Id: I7bb07b87b3bf73f059a21af3f810af37c7715b6d
Move away from using POSIX open(2) flags and introduce ANDROID_LOG_* flags to
replace them. Add security by preventing random mode flags from getting into
underlying POSIX calls. ANDROID_LOG_* flags overlap POSIX O_* flag definitions.
Change-Id: Ib32bb64c287e8bf150be62242e1ba46bb37839fc
Nobody ever called acquire() so release() was always
equivalent to delete. Just use delete instead so that
people can use unique_ptr directly (or shared_ptr if
they really want refcounts).
Change-Id: I9e3ad5e0f6a4fcc4e02e5a2ff7ef9514fe234415
- take android_testLog from the bonepile and resurrect
- android_testLog is used, and makes sense in its current context
as a holder for Android Logging policy.
- Default level when not specified is ANDROID_LOG_VERBOSE for
eng and userdebug, and ANDROID_LOG_DEBUG for user.
NB: Properties, which are associated with __android_log_is_loggable are
not to be adjusted in user release; it would be useful at that juncture to
return a constant of (0) for VERBOSE, and a (1) for others on user builds.
Or default level to drop to ANDROID_LOG_DEBUG for all in future.
Bug: 17760225
Change-Id: I420b5b8a94d53d664c6a8b13546ebc424a147923
- Add new liblog API __android_log_is_loggable(prio, tag, def)
- future plan to integrate this into the runtime checks and into
the logd daemon for filtration. Inert for now.
Bug: 17760225
Change-Id: I16395b4d42acc08f0209f55a1cbf87b0b2112898
The backtrace structure used to include a pointer to a backtrace_map_t
that represented the map data for a particular pc. This introduced a
race condition where the pointer could be discarded, but the backtrace
structure still contained a pointer to garbage memory. Now all of the map
information is right in the structure.
Bug: 19028453
Change-Id: If7088a73f3c6bf1f3bc8cdd2bb4b62e7cab831c0
This isn't particularly useful in and of itself, but it does introduce the
first (trivial) unit test, improves the documentation (including details
about how to debug init crashes), and made me aware of how unpleasant the
existing parser is.
I also fixed a bug in passing --- unless you thought the "peboot" and "pm"
commands were features...
Bug: 19217569
Change-Id: I6ab76129a543ce3ed3dab52ef2c638009874c3de
- create a structure to depict the private header
expected at logd end of socket.
- utilize this new structure instead of unscalable
byte stream technique used to unpack in logd.
Change-Id: I2d0e5c3531c279f2dc1fbd74807210ff8d804de0
On 64 bit systems, calls to dump_backtrace_to_file or dump_tombstone
try and directly contact the correct debuggerd (32 bit vs 64 bit)
by reading the elf information for the executable.
Unfortunately, system_server makes a call to dump_backtrace_to_file
and it doesn't have permissions to read the executable data, so it
defaults to always contacting the 64 bit debuggerd.
This CL changes the code so that all dump requests go to the 64 bit
debuggerd, which reads the elf information and redirects requests for
32 bit processes to the 32 bit debuggerd.
Testing:
- Forced the watchdog code in system_server to dump stacks and
verified that all native stacks are dumped correctly.
- Verified that dumpstate and bugreport still properly dump the native
processes on a 64 bit and 32 bit system.
- Intentionally forced the 64 bit to 32 bit redirect to write only a
byte at a time and verified there are no errors, and no dropped data.
- Used debuggerd and debuggerd64 to dump 32 bit and 64 bit processes
seemlessly.
- Used debuggerd on a 32 bit system to dump native stacks.
Bug: https://code.google.com/p/android/issues/detail?id=97024
Change-Id: Ie01945153bdc1c4ded696c7334b61d58575314d1
Under some unknown circumstances, debuggerd could become unresponsive.
If you try and take a bugreport during this time, it will hang forever.
Adding functions that have a timeout will allow dumpstate to stop if
dumping is taking too long.
Bug: 18766581
(cherry picked from commit 5f2ff6a910)
Change-Id: I39e8e9c60209e3ef9efac795fedb8e1edce2bd3e
Packets captured and logged by the NFLOG target are unicast, so
extend to catch and decode them. To avoid escaping issues, the raw
contents are passed around as hex strings.
Bug: 18335678
Change-Id: Ib7299500baa00080a1f000f9da843eb527363353
Under some unknown circumstances, debuggerd could become unresponsive.
If you try and take a bugreport during this time, it will hang forever.
Adding functions that have a timeout will allow dumpstate to stop if
dumping is taking too long.
Bug: 18766581
Change-Id: I85053b8dcfe6224e2b64b4d8f7f2ef448b3cda34
system/core/include/utils/Mutex.h:134:25: error: non-constant-expression
cannot be narrowed from type 'long long' to '__kernel_time_t' (aka
'long') in initializer list [-Wc++11-narrowing]
system/core/include/utils/Mutex.h:135:26: error: non-constant-expression
cannot be narrowed from type 'long long' to 'long' in initializer list
[-Wc++11-narrowing]
Change-Id: Icb9df26aeb01617da5ab1c36987289f7c2b11954
This is not available for host builds because OSX doesn't have
pthread_mutex_timedlock() or equivalent.
Bug: 18842510
Change-Id: I072e74ab1a6f770fd245828b39c5f954dda1113b
The ANDROID_SINGLETON_STATIC_INSTANCE is used in some files
out of the android namespace. If it does not use full qualified
names, users of this macro will need to use it inside the 'android'
namespace to avoid warnings from clang compiler.
Change-Id: Ie4d4ba2b57fdc72d0deb3b7c2326304a44a1300f
This should probably be in libcutils instead, so code that needs to
care about Windows can use readv/writev.
Change-Id: I7c2ceec3f742cee0e44f69fd4c88459376bd0e08
As well intentioned as these were, uint16_t and C++11's char16_t are
_not_ actually compatible. They are not implicitly convertible, and
they mangle differently, so they are not even ABI compatible. In our
now wonderous world of C++11, no one should be using these, so just
kill them.
Bug: 18300613
Change-Id: I06d92d7f1d937dd94a620874323d4c50eb6a31bd
Needed for cases where something should be constexpr if possible, but
not being constexpr is fine if in pre-C++11 code (such as a const
static float member variable).
Bug: 18466763
Change-Id: I635d062575ba2fbc4cbe3a89f730128c404d95e1
Dan Albert