// Copyright 2024 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 // pause sets SP to newsp and pauses the execution of Go's WebAssembly // code until an event is triggered, or call back into Go. // // Note: the epilogue of pause pops 8 bytes from the stack, so when // returning to the host, the SP is newsp+8. // If we want to set the SP such that when it calls back into Go, the // Go function appears to be called from pause's caller's caller, then // call pause with newsp = internal/runtime/sys.GetCallerSP()-16 (another 8 is // the return PC pushed to the stack). func pause(newsp uintptr)