On 04/12/2020 08:56, Richi Dubey wrote:
When I am trying to debug tm24 running on the Strong APA scheduler
code, I can see that the thread which comes after the call
to _CPU_Context_switch, resumes execution from the same code (next
line in the _Thread_Do_dispatch function after _CPU_Context_switch),
whereas when the same code is run on a different scheduler (the
default sp scheduler) the heir thread that executes after the call
to _CPU_Context_switch starts executing from _Thread_Handler and does
not resume its execution from the _Thread_Do_dispatch (which has the
context_switch function call).
Why is this happening? Is the scheduler responsible for this?
I have currently no time to help you debugging this issue.
Each thread starts the execution in _Thread_Handler(). A context switch
returns to _Thread_Do_dispatch() or jumps to _Thread_Handler(). The
_Thread_Handler() completes the context switch, does some general calls
to begin the thread execution and then calls the thread entry function.
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