This patch is based on some code contributed by Dirk Brandewie.
This is a generic data structure for queuing data in a FIFO ring
buffer. Any given data enqueued is annotated with an app-specific
type identifier, and small integral value. Use of a data pointer
is optional if the necessary information can be conveyed in the
annotations. We want all the metadata to fit in a single DWORD.
The ring buffer always contains at least one free dword in the
buffer to correctly distinguish between full and empty queues.
Concurrency control is almost nonexistent; depending on usage,
apps may want to introduce the usage of semaphores and/or mutexes
to preserve the integrity of the ring buffer or provide notifications
when data is available.
Change-Id: I860262d2afc96db4476d4c695a92f7da355ab732
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
Add a standardized mechanism to add profiling points to the Kernel
with a single interface for the user to collect the profiling data.
Change-Id: I4fa34ac1b42f73a73ba1fd805e755ee2fd00dff7
Signed-off-by: Yonattan Louise <yonattan.a.louise.mendoza@intel.com>
Add a log event tool with a single interface for the user to
add/collect the event log data.
Change-Id: Ia4b78836748c5d7e44ba1bdd50c28434e8a55d65
Signed-off-by: Yonattan Louise <yonattan.a.louise.mendoza@intel.com>
File contents moved to the nanokernel initialization file, since
they don't warrant their own distinct source file.
Change-Id: I61329067a077c421e2889c745ea44eef78ce37cb
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
The nanokernel time tracking code (ticker) can now exist in microkernel
systems. This allows the ticker that drives nano timers and timeouts to
advance the tick count for these in a microkernel, thus allow their
presence there. Previously, nano timers could not be used in a
microkernel.
Change-Id: I17f2b659691a081b0f9bf3961ed030533aa02a15
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
The nanokernel timers will be available in the microkernel, but can be
disabled if not needed. A kconfig option is needed for that: the option
is enabled by default, and only available in the nanokernel for now. It
will be made available in the microkernel in the future.
Change-Id: I3910affde7bd2e7b25ab0a3c655255a9be01c9b8
Signed-off-by: Benjamin Walsh <benjamin.walsh@windriver.com>
Add infrastructure support having multiple instances of a driver
configured into the system each with its own compile time
configuration information.
Change-Id: I1e447af18311139b43f74fe0439483ccd132b63f
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
According to section 3.7 of Documentation/kbuild/makefiles.txt, using
EXTRA_CFLAGS in Makefiles is "still supported but their usage is
deprecated." However, using make EXTRA_CFLAGS="-DSOMETHING" results in
EXTRA_CFLAGS from Makefiles being overwritten, obviously breaking the
build. This patch converts to them to the newer ccflags-y which also
fixes the problem.
Change-Id: I6309439599d4c9cc184f9ecd941bde841982ef07
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
These routines are either unused, or are always used in manner
that does not require their added security checking.
Change-Id: I6f484924ebc3d395a20879445a2fcabebf6c5014
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
This commit creates the Makefiles that describe the object-bundles for
the kernel directory and every sub-directory below.
It also includes the misc Makefile.
Signed-off-by: Juan Manuel Cruz <juan.m.cruz.alcaraz@linux.intel.com>
Change-Id: I847e79a40ced0b1d8370b893cd95c15efc7e5147
Andrew Boie