pc := getcallerpc()
	doasanread(addr, sz, sp, pc)
}

//go:linkname asanwrite
//go:nosplit
func asanwrite(addr unsafe.Pointer, sz uintptr) {
	sp := getcallersp()
	pc := getcallerpc()
	doasanwrite(addr, sz, sp, pc)
}

//go:noescape
func doasanread(addr unsafe.Pointer, sz, sp, pc uintptr)

//go:noescape
func doasanwrite(addr unsafe.Pointer, sz, sp, pc uintptr)

//go:noescape

func main() {
	p := new([1024 * 1000]int)
	p[0] = 10
	r := bar(&p[1024*1000-1])
	fmt.Printf("r value is %d", r)
}

func bar(a *int) int {
	p := unsafe.Add(unsafe.Pointer(a), 2*unsafe.Sizeof(int(1)))
	runtime.ASanWrite(p, 8) // BOOM
	*((*int)(p)) = 10
	return *((*int)(p))

//go:build asan

package asan

import (
	"unsafe"
)

const Enabled = true

//go:linkname Read runtime.asanread
func Read(addr unsafe.Pointer, len uintptr)

//go:linkname Write runtime.asanwrite

import (
	"unsafe"
)

const asanenabled = false

// Because asanenabled is false, none of these functions should be called.

func asanread(addr unsafe.Pointer, sz uintptr)            { throw("asan") }
func asanwrite(addr unsafe.Pointer, sz uintptr)           { throw("asan") }
func asanunpoison(addr unsafe.Pointer, sz uintptr)        { throw("asan") }
func asanpoison(addr unsafe.Pointer, sz uintptr)          { throw("asan") }

var Syms symsStruct

type symsStruct struct {
	AssertE2I         *obj.LSym
	AssertE2I2        *obj.LSym
	AssertI2I         *obj.LSym
	AssertI2I2        *obj.LSym
	Asanread          *obj.LSym
	Asanwrite         *obj.LSym
	CgoCheckMemmove   *obj.LSym
	CgoCheckPtrWrite  *obj.LSym
	CheckPtrAlignment *obj.LSym
	Deferproc         *obj.LSym
	Deferprocat       *obj.LSym
	DeferprocStack    *obj.LSym

	// Mark the input as having been written before the call
	// and the output as read after.
	if msanenabled && new != nil {
		msanwrite(unsafe.Pointer(new), unsafe.Sizeof(*new))
	}
	if asanenabled && new != nil {
		asanwrite(unsafe.Pointer(new), unsafe.Sizeof(*new))
	}
	if _cgo_sigaction == nil || inForkedChild {
		sysSigaction(sig, new, old)
	} else {
		// We need to call _cgo_sigaction, which means we need a big enough stack

	{"runtime.racewrite", 1},
	{"runtime.racereadrange", 1},
	{"runtime.racewriterange", 1},
	{"runtime.msanread", 1},
	{"runtime.msanwrite", 1},
	{"runtime.msanmove", 1},
	{"runtime.asanread", 1},
	{"runtime.asanwrite", 1},
	{"runtime.checkptrAlignment", 1},
	{"runtime.checkptrArithmetic", 1},
	{"runtime.libfuzzerTraceCmp1", 1},
	{"runtime.libfuzzerTraceCmp2", 1},
	{"runtime.libfuzzerTraceCmp4", 1},

		} else if cas.elem != nil {
			msanwrite(cas.elem, c.elemtype.Size_)
		}
	}
	if asanenabled {
		if casi < nsends {
			asanread(cas.elem, c.elemtype.Size_)
		} else if cas.elem != nil {
			asanwrite(cas.elem, c.elemtype.Size_)
		}
	}

	selunlock(scases, lockorder)
	goto retc

bufrecv:
	// can receive from buffer
	if raceenabled {
		if cas.elem != nil {

		raceReadObjectPC(typ, src, getcallerpc(), abi.FuncPCABIInternal(reflect_typedmemmove))
	}
	if msanenabled {
		msanwrite(dst, typ.Size_)
		msanread(src, typ.Size_)
	}
	if asanenabled {
		asanwrite(dst, typ.Size_)
		asanread(src, typ.Size_)
	}
	typedmemmove(typ, dst, src)
}

//go:linkname reflectlite_typedmemmove internal/reflectlite.typedmemmove

// memory sanitizer
func msanread(addr, size uintptr)
func msanwrite(addr, size uintptr)
func msanmove(dst, src, size uintptr)

// address sanitizer
func asanread(addr, size uintptr)
func asanwrite(addr, size uintptr)

func checkptrAlignment(unsafe.Pointer, *byte, uintptr)
func checkptrArithmetic(unsafe.Pointer, []unsafe.Pointer)

func libfuzzerTraceCmp1(uint8, uint8, uint)