1 files changed, 31 insertions, 0 deletions
diff --git a/src/runtime/os_linux_s390x.go b/src/runtime/os_linux_s390x.go
new file mode 100644
index 0000000..0a1d959
--- /dev/null
+++ b/src/runtime/os_linux_s390x.go
@@ -0,0 +1,31 @@
+// 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)
+	}
+}