[PATCH 3/3] covoar: Fix overflow of high PC address

[Alex White]

ping

On Fri, Mar 12, 2021 at 11:14 AM Alex White <alex.white at oarcorp.com> wrote:
>
> This fixes an integer overflow that would occur if a function's high PC
> address were zero in the DWARF info.
> ---
>  tester/covoar/ExecutableInfo.cc | 5 +++++
>  1 file changed, 5 insertions(+)
>
> diff --git a/tester/covoar/ExecutableInfo.cc b/tester/covoar/ExecutableInfo.cc
> index 30828a6..7f33f20 100644
> --- a/tester/covoar/ExecutableInfo.cc
> +++ b/tester/covoar/ExecutableInfo.cc
> @@ -71,6 +71,11 @@ namespace Coverage {
>              }
>            }
>
> +          // We can't process a zero size function.
> +          if (func.pc_high() == 0) {
> +            continue;
> +          }
> +
>            createCoverageMap (cu.name(), func.name(),
>                                func.pc_low(), func.pc_high() - 1);
>          }
> --
> 2.27.0
>
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