go asan5_fail 源码
golang asan5_fail 代码
文件路径：/misc/cgo/testsanitizers/testdata/asan5_fail.go
package main
import (
"fmt"
"runtime"
"unsafe"
)
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))
}
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