[PATCH 6/6] detect unterminated const arrays in strnlen calls (PR 86552)
Jeff Law
law@redhat.com
Thu Aug 30 23:25:00 GMT 2018
On 08/13/2018 03:29 PM, Martin Sebor wrote:
> The attached changes implement the detection of past-the-end reads
> by strncpy due to unterminated arguments and excessive bounds.
>
>
> gcc-86552-6.diff
>
>
> PR tree-optimization/86552 - missing warning for reading past the end of non-string arrays
>
> gcc/ChangeLog:
> * builtins.c (expand_builtin_strnlen): Detect, avoid expanding,
> and diagnose unterminated arrays.
>
> gcc/testsuite/ChangeLog:
> * gcc.dg/warn-strnlen-no-nul.c: New.
This will have the same state and resolution as #2-#5.
jeff
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