D15527.id42882.diff
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	Index: head/sys/arm64/include/proc.h
	===================================================================
	--- head/sys/arm64/include/proc.h
	+++ head/sys/arm64/include/proc.h
	@@ -54,4 +54,18 @@
	int narg;
	};

	+#ifdef _KERNEL
	+
	+#include <machine/pcb.h>
	+
	+#define GET_STACK_USAGE(total, used) do { \
	+ struct thread *td = curthread; \
	+ (total) = td->td_kstack_pages * PAGE_SIZE - sizeof(struct pcb); \
	+ (used) = (char *)td->td_kstack + \
	+ td->td_kstack_pages * PAGE_SIZE - \
	+ (char *)&td; \
	+} while (0)
	+
	+#endif
	+
	#endif /* !_MACHINE_PROC_H_ */