mirror of https://go.googlesource.com/go
24 lines
552 B
Go
24 lines
552 B
Go
// Copyright 2013 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build amd64 || 386
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package runtime
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import (
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"internal/goarch"
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"unsafe"
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)
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// adjust Gobuf as if it executed a call to fn with context ctxt
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// and then stopped before the first instruction in fn.
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func gostartcall(buf *gobuf, fn, ctxt unsafe.Pointer) {
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sp := buf.sp
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sp -= goarch.PtrSize
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*(*uintptr)(unsafe.Pointer(sp)) = buf.pc
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buf.sp = sp
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buf.pc = uintptr(fn)
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buf.ctxt = ctxt
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}
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