The RTEMS print user need to know nothing about a particular printer
implementation. In particular get rid of the <stdio.h> include which
would be visible via <rtems.h>.
Add CLOCK_DRIVER_USE_ONLY_BOOT_PROCESSOR clock driver option. If
defined, then do the clock tick processing on the boot processor on
behalf of all other processors. Currently, this is intended as a
workaround for a Qemu shortcoming on ARM.
Update #2737.
Do not wait for the interrupt server while owning the allocator lock.
This could lead to deadlock in case one of interrupt service routines or
user extensions want to obtain the allocator mutex as well. Instead let
the interrupt server do the install/remove job entirely on behalf of the
requesting task.
The page table is placed at address 0x00004000 which provides
required 16 kB space till the start of application image.
The RAM size specified in a linker script is upper limit
address of RAM utilized for the work area initialization.
If VideoCore reports to use lower address than expected
then work area size is adjusted (shrinked) appropriately.
If the raspberrypi.h has been included without preceding inclussion
of bsp.h then BSP_IS_RPI2 has not been set for Raspberry Pi 2
BSP variant and bad things happen later.
The patch includes bspopts.h by raspberrypi.h and even includes
bsp.h in critical peripherals support.
This change adds rtems_printf and related functions and wraps the
RTEMS print plugin support into a user API. All references to the
plugin are removed and replaced with the rtems_printer interface.
Printk and related functions are made to return a valid number of
characters formatted and output.
The function attribute to check printf functions has been added
to rtems_printf and printk. No changes to remove warrnings are part
of this patch set.
The testsuite has been moved over to the rtems_printer. The testsuite
has a mix of rtems_printer access and direct print control via the
tmacros.h header file. The support for begink/endk has been removed
as it served no purpose and only confused the code base. The testsuite
has not been refactored to use rtems_printf. This is future work.
Rename _ISR_Disable() into _ISR_Local_disable(). Rename _ISR_Enable()
into _ISR_Local_enable(). Remove _Debug_Is_owner_of_giant().
This is a preparation to remove the Giant lock.
Update #2555.
Rename _ISR_Disable_without_giant() into _ISR_Local_disable(). Rename
_ISR_Enable_without_giant() into _ISR_Local_enable().
This is a preparation to remove the Giant lock.
Update #2555.
Avoid _Thread_Dispatch_increment_disable_level() and
_Thread_Dispatch_decrement_disable_level() and thus the Giant
lock.
This is a preparation to remove the Giant lock.
Update #2555.
This is required if function or direction is changed by some driver
after start of thread multitasking or in interrupts drivers.
There can be problem with calling GPIO function selection before
data section is initialized. But actual ticket lock implementation
seems to be compatible even with memory initialized to zero oven
on SMP.
Original implementation does only bitwise-or with previous register
value for all functions except IN. Switch from one to other function
would lead to incorrect value.
