pussuw commented on code in PR #14596:
URL: https://github.com/apache/nuttx/pull/14596#discussion_r1825793404
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arch/arm/src/arm/arm_syscall.c:
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@@ -54,19 +54,23 @@
uint32_t *arm_syscall(uint32_t *regs)
{
- struct tcb_s *tcb = this_task();
+ struct tcb_s **running_task = &g_running_tasks[this_cpu()];
+ FAR struct tcb_s *tcb = this_task();
uint32_t cmd;
- int cpu;
/* Nested interrupts are not supported */
DEBUGASSERT(up_current_regs() == NULL);
+ if (*running_task != NULL)
+ {
+ (*running_task)->xcp.regs = regs;
Review Comment:
So this is a result of how we do the context switch via invoking a trap; the
task that is being switched out is in "running_task" and the task that will run
next is in "this_task()" ?
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