github.com/zxy12/go_duplicate_112_new@v0.0.0-20200807091221-747231827200/src/runtime/sys_wasm.go (about) 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 ( 8 "runtime/internal/sys" 9 "unsafe" 10 ) 11 12 type m0Stack struct { 13 _ [8192 * sys.StackGuardMultiplier]byte 14 } 15 16 var wasmStack m0Stack 17 18 func wasmMove() 19 20 func wasmZero() 21 22 func wasmDiv() 23 24 func wasmTruncS() 25 func wasmTruncU() 26 27 func wasmExit(code int32) 28 29 // adjust Gobuf as it if executed a call to fn with context ctxt 30 // and then did an immediate gosave. 31 func gostartcall(buf *gobuf, fn, ctxt unsafe.Pointer) { 32 sp := buf.sp 33 if sys.RegSize > sys.PtrSize { 34 sp -= sys.PtrSize 35 *(*uintptr)(unsafe.Pointer(sp)) = 0 36 } 37 sp -= sys.PtrSize 38 *(*uintptr)(unsafe.Pointer(sp)) = buf.pc 39 buf.sp = sp 40 buf.pc = uintptr(fn) 41 buf.ctxt = ctxt 42 }