pc--
		}
		up := pcdatavalue(f, abi.PCDATA_UnsafePoint, pc)
		if up != abi.UnsafePointSafe {
			// Not at a safe point.
			ret = debugCallUnsafePoint
		}
	})
	return ret
}

// debugCallWrap starts a new goroutine to run a debug call and blocks
// the calling goroutine. On the goroutine, it prepares to recover
// panics from the debug call, and then calls the call dispatching
// function at PC dispatch.
//

	// 2. By gcAssistAlloc1 to signal back to its caller that the goroutine completed
	//    the GC cycle. It is unsafe to do so in any other way, because the goroutine's
	//    stack may have moved in the meantime.
	// 3. By debugCallWrap to pass parameters to a new goroutine because allocating a
	//    closure in the runtime is forbidden.
	// 4. When a panic is recovered and control returns to the respective frame,