This includes a generic critical section implementation, and nrf51
platforms specific implementation.
nrf51- this implementation will use sd_nvic_critical_region_enter if the
softdevice is enabled, otherwise it will use __disable_irq().
This implementation also allow a user to start a critical section while
interrupts are already disabled.
Cherry pick commit d587474778 -
"RTX: Support stacks larger than 64k"
This allows the latest version of the RTOS to run mbed client over
ethernet without crashing.
Thread - stack methods are not available for now, as tcb pointer was removed from
internal structure. To obtain it, we could get it from the kernel, but this should be
reconsidered. Either RTOS should provide it, or these methods will become deprecated.
Changes to the original kernel:
Cortex-M requires to define __CMSIS_OS_RTX, and __MBED_CMSIS_RTOS_CM. The macro __MBED_CMSIS_RTOS_CM
is mbed specific macro, to track changes to the kernel. This should keep us aware what has changed. For instance,
one breaking change was thread adding instances variable, which were not in mbed. This can be find as
it's protected via __MBED_CMSIS_RTOS_CM ifdef.
```
// added for mbed compatibility
// original RTX code
```
Startup for toolchains - mbed defines own stack pointer (set_main_stack()), therefore it should be called in the startup.
IAR added low level init calls and dynamic intialization to the IAR startup. All defined in RTX_CM_lib.h.
The timer thread has task id 0x01, main task 0x02. There are exception for main task not to check for
overflows. This is mbed specific, was reapplied from mbed code base.
IAR fixed SVC calls, this fix had to be reapplied (repo mbed PR 736 for more information).
Thread - stack methods are not available for now, as tcb pointer was removed from
internal structure. To obtain it, we could get it from the kernel, but this should be
reconsidered. Either RTOS should provide it, or these methods will become deprecated.
Changes to the original kernel:
Cortex-M requires to define __CMSIS_OS_RTX, and __MBED_CMSIS_RTOS_CM. The macro __MBED_CMSIS_RTOS_CM
is mbed specific macro, to track changes to the kernel. This should keep us aware what has changed. For instance,
one breaking change was thread adding instances variable, which were not in mbed. This can be find as
it's protected via __MBED_CMSIS_RTOS_CM ifdef.
```
// added for mbed compatibility
// original RTX code
```
Startup for toolchains - mbed defines own stack pointer (set_main_stack()), therefore it should be called in the startup.
IAR added low level init calls and dynamic intialization to the IAR startup. All defined in RTX_CM_lib.h.
The timer thread has task id 0x01, main task 0x02. There are exception for main task not to check for
overflows. This is mbed specific, was reapplied from mbed code base.
IAR fixed SVC calls, this fix had to be reapplied (repo mbed PR 736 for more information).
Sam Grove
Martin Kojtal
Russ Butler
Anna Bridge
Bogdan Marinescu
Yogesh Pande
Brian Daniels
Milosch Meriac
Bogdan Marinescu