hujun260 opened a new pull request, #14596:
URL: https://github.com/apache/nuttx/pull/14596
## Summary
When entering an exception or interrupt, there are two sets of registers:
one is the "running regs", which we need to save,
and the other is the "ready to running regs", which we may soon use.
For consistency in logic, we can always store the "running regs" in the regs
field of g_running_tasks,
otherwise it may lead to errors in the storage location of the "running
regs."
When we need to access the "running regs," we should uniformly retrieve them
from the regs field of g_running_tasks.
As the next step, we will rename the set_current_regs/up_current_regs
functions
for each architecture to more appropriate names, solely for the purpose of
identifying interrupts.
## Impact
context switch logic
## Testing
**Build Host:**
* OS: Ubuntu 20.04
* CPU: x86_64
* Compiler: GCC 9.4.0
Configuring NuttX and compile:
$ ./tools/configure.sh -l qemu-armv8a:nsh_smp
$ make
Running with qemu
$ qemu-system-aarch64 -cpu cortex-a53 -smp 4 -nographic \
-machine virt,virtualization=on,gic-version=3 \
-net none -chardev stdio,id=con,mux=on -serial chardev:con \
-mon chardev=con,mode=readline -kernel ./nuttx
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