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: / opt / golang / 1.22.0 / src / runtime /

Filename : sys_x86.go

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// Copyright 2013 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 amd64 || 386

package runtime

import (
	"internal/goarch"
	"unsafe"
)

// adjust Gobuf as if it executed a call to fn with context ctxt
// and then stopped before the first instruction in fn.
func gostartcall(buf *gobuf, fn, ctxt unsafe.Pointer) {
	sp := buf.sp
	sp -= goarch.PtrSize
	*(*uintptr)(unsafe.Pointer(sp)) = buf.pc
	buf.sp = sp
	buf.pc = uintptr(fn)
	buf.ctxt = ctxt
}