Re: [PATCH 5.8 108/177] gcov: Disable gcov build with GCC 10

Linus Torvalds
2020-09-15T18:49:23Z

On Tue, Sep 15, 2020 at 7:28 AM Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
>
> GCOV built with GCC 10 doesn't initialize n_function variable. This
> produces different kernel panics as was seen by Colin in Ubuntu and me
> in FC 32.
>
> As a workaround, let's disable GCOV build for broken GCC 10 version.

Oh, Peter Oberparleiter actually figured out what was wrong, and we
have commit 40249c696207 ("gcov: add support for GCC 10.1") upstream
that enables it again with the fix for the changed semantics in
gcc-10.

Linus