|  | // Copyright 2021 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. | 
|  |  | 
|  | //go:build linux && s390x | 
|  | // +build linux,s390x | 
|  |  | 
|  | package runtime | 
|  |  | 
|  | const ( | 
|  | // vdsoArrayMax is the byte-size of a maximally sized array on this architecture. | 
|  | // See cmd/compile/internal/s390x/galign.go arch.MAXWIDTH initialization. | 
|  | vdsoArrayMax = 1<<50 - 1 | 
|  | ) | 
|  |  | 
|  | var vdsoLinuxVersion = vdsoVersionKey{"LINUX_2.6.29", 0x75fcbb9} | 
|  |  | 
|  | var vdsoSymbolKeys = []vdsoSymbolKey{ | 
|  | {"__kernel_clock_gettime", 0xb0cd725, 0xdfa941fd, &vdsoClockgettimeSym}, | 
|  | } | 
|  |  | 
|  | // initialize with vsyscall fallbacks | 
|  | var ( | 
|  | vdsoClockgettimeSym uintptr = 0 | 
|  | ) |