This allows us to send a sync fork request to the Nuwa process when we need one but there is no
spare process available. After an app is launched, the request to fork a spare process is still
handled asynchronously.
This also moves the initialization of the sandbox TargetServices to earlier in
plugin-container.cpp content_process_main, because it needs to happen before
xul.dll loads.
The current situation looks like this: Firefox launches the plugin-container
with two environment variables set:
LD_LIBRARY_PATH=$FIREFOX_DIR:$LD_LIBRARY_PATH
LD_PRELOAD=$FIREFOX_DIR/libmozgtk2.so:$LD_PRELOAD
libxul.so has a dependency on libmozgtk.so (without "2"), but libmozgtk2.so
has a SONAME of libmozgtk.so, so ld.so recognizes libmozgtk2.so as a
dependency of libxul.so, and uses it instead of the actual libmozgtk.so,
making the plugin-container use Gtk+2 instead of Gtk+3 to load Gtk+2 plugins.
Now, ASan sets things up in shared libraries such that they needs a symbol
from the executable binary. So in the case of plugin-container, the
plugin-container executable itself contains some ASan symbols such as
__asan_init_v3. libmozgtk2.so, OTOH, contains an undefined weak reference to
that symbol, like all other Firefox shared libraries.
Since libmozgtk2.so is LD_PRELOADed, it is loaded _before_ the
plugin-container executable, and __asan_init_v3 can't be resolved.
Disabling ASan for libmozgtk2.so would be a possibility, but the build system
doesn't really know how to do that, and filtering out -fsanitize=address
can be fragile.
The alternative possibility, implemented here, is to change the library
loading strategy, renaming libmozgtk2.so to gtk2/libmozgtk.so, and setting
the following environment variable when Firefox launches the plugin-container:
LD_LIBRARY_PATH=$FIREFOX_DIR/gtk2:$FIREFOX_DIR:$LD_LIBRARY_PATH
There are a variety of ways that the parent and child process ensure that
the child process exits quickly in opt builds, but for AddressSanitizer
builds we want to let the child process to run to completion, so that we
can get a LeakSanitizer report.
This requires adding some addition LSan suppressions, because running
LSan in child processes detects some new leaks.
The new daemon runnables are generalized implementations of the
Bluetooth daemon runnables. The code is unchanged, except for name
changes and fixes to the coding style.
The new daemon runnables are generalized implementations of the
Bluetooth daemon runnables. The code is unchanged, except for name
changes and fixes to the coding style.
The shutdown procedure for socket classes ensures that the I/O class is
deleted independently from its socket class. If the socket class has been
deleted, no I/O is performed and no socket events are forwarded. The I/O
class therefore doesn't require a strong reference to its socket class.
This patch removes the remaining ref-counted pointers from the socket I/O
classes. The socket class clears the weak reference in its socket I/O class
when closing the socket.
This patch finally breaks up forwarding received RIL messages to the
main thread before they go to the RIL worker. Any RIL message that is
received on th I/O thread is forwarded directly to the RIL worker
thread and handed over to the RIL worker JS code.
The patch includes a number of changes. They all depend on each other,
so there's no good way of landing them one-by-one.
* |RilConsumer| now runs on the RIL worker thread.
* |RilWorker| uses tasks to register/unregister |RilConsumer| in the worker.
* |RilConsumer| uses |RilSocket| instead of |StreamSocket|.
* With |RilSocket|, received RIL messages do not go through main. They are
forwared to the RIL worker and handed over to JS immediately.
This patch separates the current interface of |RilConsumer| into
two distinct classes. |RilWorker| provides the public interface
and |RilConsumer| provides the internal implementation. Running
|RilConsumer| on a worker thread will be easier this way.
With this patch, |RilSocket| and it's helpers forward received data
via a WCTD. This will hand over the worker's JS context to the RIL
consumer.
In a later patch, the RIL consumer will be moved onto the RIL worker
thread and call the JS ril-worker code directly.
|RilSocket| and |RilSocketConsumer| are copies of the respective stream-
socket classes. Improvements to the RIL I/O code will be implemented on
top of the new classes.
This patch finally breaks up forwarding received RIL messages to the
main thread before they go to the RIL worker. Any RIL message that is
received on th I/O thread is forwarded directly to the RIL worker
thread and handed over to the RIL worker JS code.
The patch includes a number of changes. They all depend on each other,
so there's no good way of landing them one-by-one.
* |RilConsumer| now runs on the RIL worker thread.
* |RilWorker| uses tasks to register/unregister |RilConsumer| in the worker.
* |RilConsumer| uses |RilSocket| instead of |StreamSocket|.
* With |RilSocket|, received RIL messages do not go through main. They are
forwared to the RIL worker and handed over to JS immediately.
This patch separates the current interface of |RilConsumer| into
two distinct classes. |RilWorker| provides the public interface
and |RilConsumer| provides the internal implementation. Running
|RilConsumer| on a worker thread will be easier this way.
With this patch, |RilSocket| and it's helpers forward received data
via a WCTD. This will hand over the worker's JS context to the RIL
consumer.
In a later patch, the RIL consumer will be moved onto the RIL worker
thread and call the JS ril-worker code directly.
|RilSocket| and |RilSocketConsumer| are copies of the respective stream-
socket classes. Improvements to the RIL I/O code will be implemented on
top of the new classes.
The bulk of this commit was generated by running:
run-clang-tidy.py \
-checks='-*,llvm-namespace-comment' \
-header-filter=^/.../mozilla-central/.* \
-fix
