// Copyright 2016 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package runtime import "internal/cpu" const ( _HWCAP_VX = 1 << 11 // vector facility ) func archauxv(tag, val uintptr) { switch tag { case _AT_HWCAP: cpu.HWCap = uint(val) } } func osArchInit() {} func checkS390xCPU() { // Check if the present z-system has the hardware capability to carryout // floating point operations. Check if hwcap reflects CPU capability for the // necessary floating point hardware (HasVX) availability. // Starting with Go1.19, z13 is the minimum machine level for running Go on LoZ if cpu.HWCap&_HWCAP_VX == 0 { print("runtime: This CPU has no floating point hardware, so this program cannot be run. \n") exit(1) } }