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.
The current versions of U-boot start kernel/RTEMS application image
with instruction and data caches enabled and it sets exception
base register to new address after its self-relocation.
ldr r0, [r9, #GD_RELOCADDR] /* r0 = gd->relocaddr */
mcr p15, 0, r0, c12, c0, 0 /* Set VBAR */
Included changes in bsp_start_hook_0 restore default state to
allow RTEMS image to run after startup from newer U-boot version
on Raspberry Pi.
Clear interrupt enable registers in interrupt controller
to ensure that RTEMS starts from well defined state.
Fix the interrupt and stop the spurious interrupt from happening.
The fix moves the EOI to C code and cleans that functionality out
of the asm part of the ISR handler.
The code checks the ISR and IRR registers on the enable.
Only ack the master for a slave IRQ if the slave has no other pending
requests.
Move the gdb stub from the i386 UART code to use the libchip drivers.
Use any ports discovered during the probes.
Add gdb control to the boot command line.
Change the device naming to the full device path, not a partial path.
For example /dev/com1.
GCC 6.0 previews give the following warning on sonic.c:
../../../../../rtems/c/src/libchip/network/sonic.c:837:11: warning:
statement is indented as if it were guarded by... [-Wmisleading-indentation]
This was discussed here:
https://lists.rtems.org/pipermail/devel/2016-March/014004.html
and we concluded it would be better to rewrite the entire snippet.
