Source file src/runtime/sys_x86.go

Documentation: runtime

     1  // Copyright 2013 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  //go:build amd64 || 386
     6  
     7  package runtime
     8  
     9  import (
    10  	"internal/goarch"
    11  	"unsafe"
    12  )
    13  
    14  // adjust Gobuf as if it executed a call to fn with context ctxt
    15  // and then stopped before the first instruction in fn.
    16  func gostartcall(buf *gobuf, fn, ctxt unsafe.Pointer) {
    17  	sp := buf.sp
    18  	sp -= goarch.PtrSize
    19  	*(*uintptr)(unsafe.Pointer(sp)) = buf.pc
    20  	buf.sp = sp
    21  	buf.pc = uintptr(fn)
    22  	buf.ctxt = ctxt
    23  }
    24  

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