sebastianene07 opened a new pull request #1703:
URL: https://github.com/apache/incubator-nuttx/pull/1703
## Summary of Changes
The `ucontext` API allows us to jump from the signal handler without
altering the
handler's execution flow. A new host API is introduced:
getcontext()/setcontext()/swapcontext()/makecontext().
This feature can be enabled by setting CONFIG_SIM_UCONTEXT_PREEMPTION=y.
This is a continuation of the work done here:
https://github.com/apache/incubator-nuttx/pull/1663
## Impact
When the option `CONFIG_SIM_UCONTEXT_PREEMPTION` is not enabled the patch is
using the previous mechanism :
`setjmp/longjmp` and is not altering the original functionality.
Signed-off-by: Sebastian Ene <[email protected]>
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