libgo/go/runtime/os_windows_arm.go

   1 // Copyright 2018 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 package runtime
   6
   7 import "unsafe"
   8
   9 //go:nosplit
  10 func cputicks() int64 {
  11         var counter int64
  12         stdcall1(_QueryPerformanceCounter, uintptr(unsafe.Pointer(&counter)))
  13         return counter
  14 }
  15
  16 func checkgoarm() {
  17         if goarm < 7 {
  18                 print("Need atomic synchronization instructions, coprocessor ",
  19                         "access instructions. Recompile using GOARM=7.\n")
  20                 exit(1)
  21         }
  22 }