On 18/05/2021 00:07, Joel Sherrill wrote:
Does this impact the porting guide

I added this to cpukit/score/cpu/no_cpu/include/rtems/score/cpu.h:

/**
* @brief Peforms a context switch from the executing thread to the heir thread
 *   and does not return.
 *
 * @addtogroup RTEMSScoreCPUExampleContext
 *
* This routine shall be a strong alias to _CPU_Context_switch(). It shall be
 * provided for all target architectures which support an SMP build
 * configuration (RTEMS_SMP).  The purpose is help to compiler to avoid
 * generation of dead code in _Thread_Start_multitasking().
 *
* @param[out] executing points to the context of the currently executing task.
 *
 * @param[in, out] heir points to the context of the heir task.
 */
RTEMS_NO_RETURN void _CPU_Context_switch_no_return(
  Context_Control *executing,
  Context_Control *heir
);

or any CPU supplement?

No.

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