This is xnu-12377.1.9. See this file in:
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#define UT_MODULE osfmk

#include <darwintest.h>
#include <arm/misc_protos.h>
#include <arm/cpu_data_internal.h>
#include <arm/cpu_internal.h>
#include "mocks/mock_cpu.h"


T_GLOBAL_META(
	T_META_NAMESPACE("xnu.unit.debugger_xcall_test"),
	T_META_RADAR_COMPONENT_NAME("xnu"),
	T_META_RUN_CONCURRENTLY(false)
	);


T_DECL(debugger_xcall_enter_cpu_signal_fail, "DebuggerXCallEnter where cpu_signal fails.")
{
	T_MOCK_SET_RETVAL(cpu_signal, kern_return_t, KERN_FAILURE);

	// Init with 2 CPUs. We are cpu-0
	T_MOCK_SET_RETVAL(ml_get_max_cpu_number, int, 1);
	cpu_data_t cpu_data_cpu1 = {0};
	CpuDataEntries[0].cpu_data_vaddr = getCpuDatap();
	CpuDataEntries[1].cpu_data_vaddr = &cpu_data_cpu1;

	kern_return_t result = DebuggerXCallEnter(false, false);
	T_EXPECT_MACH_SUCCESS(result, "Expecting DebuggerXCallEnter() success.");
}