blob: 2dda9c9274d73bdcd44b145bf67d9379995932b1 [file] [log] [blame]
// Copyright 2019 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 (
func lwp_mcontext_init(mc *mcontextt, stk unsafe.Pointer, mp *m, gp *g, fn uintptr) {
// Machine dependent mcontext initialisation for LWP.
mc.__gregs[_REG_ELR] = uint64(abi.FuncPCABI0(lwp_tramp))
mc.__gregs[_REG_X31] = uint64(uintptr(stk))
mc.__gregs[_REG_X0] = uint64(uintptr(unsafe.Pointer(mp)))
mc.__gregs[_REG_X1] = uint64(uintptr(unsafe.Pointer(mp.g0)))
mc.__gregs[_REG_X2] = uint64(fn)
func cputicks() int64 {
// Currently cputicks() is used in blocking profiler and to seed runtime·fastrand().
// runtime·nanotime() is a poor approximation of CPU ticks that is enough for the profiler.
return nanotime()