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Dosya Düzenle: framepointer.go
// Copyright 2023 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 || arm64 package main import "unsafe" func init() { register("FramePointerAdjust", FramePointerAdjust) } func FramePointerAdjust() { framePointerAdjust1(0) } //go:noinline func framePointerAdjust1(x int) { argp := uintptr(unsafe.Pointer(&x)) fp := *getFP() if !(argp-0x100 <= fp && fp <= argp+0x100) { print("saved FP=", fp, " &x=", argp, "\n") panic("FAIL") } // grow the stack grow(10000) // check again argp = uintptr(unsafe.Pointer(&x)) fp = *getFP() if !(argp-0x100 <= fp && fp <= argp+0x100) { print("saved FP=", fp, " &x=", argp, "\n") panic("FAIL") } } func grow(n int) { if n > 0 { grow(n - 1) } } func getFP() *uintptr
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