[ASan] Print a hint when the program crashes accessing the zero page. This may help some users figure out that the error report is valid.
[ASan] Print a hint when the program crashes accessing the zero page.
This may help some users figure out that the error report is valid.


git-svn-id: c199f293c43da69278bea8e88f92242bf3aa95f7@218123 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt