Re: Cannot use CONFIG_GCC_PLUGINS: your gcc version does not support plugins, you should upgrade it to at least gcc 4.5

From: Kees Cook
Date: Sat Aug 27 2016 - 09:28:46 EST


Hi,

This appears to be "as expected": 4.4 gcc doesn't have either of those
features, so it correctly failed.

-Kees

On Sat, Aug 27, 2016 at 1:52 AM, kbuild test robot
<fengguang.wu@xxxxxxxxx> wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: 28687b935e93a9041a485b9ecdcab0e335f8eda5
> commit: ed58c0e9eefef517aa5a547b78658e2ab4422232 gcc-plugins: abort builds cleanly when not supported
> date: 3 weeks ago
> config: x86_64-randconfig-s1-08271305 (attached as .config)
> compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7
> reproduce:
> git checkout ed58c0e9eefef517aa5a547b78658e2ab4422232
> # save the attached .config to linux build tree
> make ARCH=x86_64
>
> All errors (new ones prefixed by >>):
>
> scripts/Makefile.gcc-plugins:17: warning: cannot use CONFIG_KCOV: -fsanitize-coverage=trace-pc is not supported by compiler
>>> Cannot use CONFIG_GCC_PLUGINS: your gcc version does not support plugins, you should upgrade it to at least gcc 4.5
> make[1]: *** [gcc-plugins-check] Error 1
> make[1]: Target 'prepare' not remade because of errors.
> make: *** [sub-make] Error 2
>
> ---
> 0-DAY kernel test infrastructure Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all Intel Corporation



--
Kees Cook
Nexus Security