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https://github.com/golang/go
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d544591d72
Add tests to test that -asan in Go can detect the error memory access to the global objects. Updates #44853. Change-Id: I612a048460b497d18389160b66e6f818342d3941 Reviewed-on: https://go-review.googlesource.com/c/go/+/321716 Run-TryBot: Fannie Zhang <Fannie.Zhang@arm.com> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Reviewed-by: Keith Randall <khr@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Benny Siegert <bsiegert@gmail.com>
26 lines
451 B
Go
26 lines
451 B
Go
// Copyright 2022 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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package main
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import (
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"fmt"
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"unsafe"
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)
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var intGlo int
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func main() {
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r := bar(&intGlo)
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fmt.Printf("r value is %d", r)
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}
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func bar(a *int) int {
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p := (*int)(unsafe.Add(unsafe.Pointer(a), 1*unsafe.Sizeof(int(1))))
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if *p == 10 { // BOOM
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fmt.Println("its value is 10")
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}
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return *p
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}
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