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Re: [PATCH] gcc-plugins: disable under COMPILE_TEST

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On Mon, Jun 13, 2016 at 1:40 AM, Sedat Dilek <sedat.dilek@gmail.com> wrote:
> On Sat, Jun 11, 2016 at 6:12 PM, Kees Cook <keescook@chromium.org> wrote:
>> Since adding the gcc plugin development headers is required for the
>> gcc plugin support, we should ease into this new kernel build dependency
>> more slowly. For now, disable the gcc plugins under COMPILE_TEST so that
>> all*config builds will skip it.
>>
>
> [ This might be a bit off-topic - Feel free to answer ]
>
> Hi,
>
> I want to try that new "GCC-plugin" feature.
> Do you have a Git repo for "easy-testing"?

Start with linux-next. It has the basic infrastructure. The
"latent_entropy" plugin is in my kssp tree here:
http://git.kernel.org/cgit/linux/kernel/git/kees/linux.git/log/?h=kspp/gcc-plugins/latent_entropy
though it is not the most up to date version.

> Does the kernel's build-system check for installed "gcc-plugin
> development headers"?

Yes, when the plugins have been selected.

> Which GCC versions support "gcc-plugin" feature?

gcc-4.5 and newer.

> I am here on Ubuntu/precise AMD64 and have gcc-4.6.4 and gcc-4.9.2.

I strongly recommend upgrading to Ubuntu 16.04, but regardless, using
gcc 4.9 should be fine.

> [ Optional ]
> What about the topic and support for "LLVM/Clang and hardening" of the
> Linux-kernel?

I haven't been involved in that project, sorry.

-Kees

-- 
Kees Cook
Chrome OS & Brillo Security

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[PATCH] gcc-plugins: disable under COMPILE_TEST Kees Cook <keescook@chromium.org> - 2016-06-11 18:20 +0200
  Re: [PATCH] gcc-plugins: disable under COMPILE_TEST Paul Gortmaker <paul.gortmaker@windriver.com> - 2016-06-11 18:30 +0200
    Re: [PATCH] gcc-plugins: disable under COMPILE_TEST Emese Revfy <re.emese@gmail.com> - 2016-06-13 00:10 +0200
      Re: [PATCH] gcc-plugins: disable under COMPILE_TEST Kees Cook <keescook@chromium.org> - 2016-06-13 00:30 +0200
        Re: [PATCH] gcc-plugins: disable under COMPILE_TEST Emese Revfy <re.emese@gmail.com> - 2016-06-13 02:20 +0200
          Re: [PATCH] gcc-plugins: disable under COMPILE_TEST "Austin S. Hemmelgarn" <ahferroin7@gmail.com> - 2016-06-13 20:40 +0200
            Re: [PATCH] gcc-plugins: disable under COMPILE_TEST Kees Cook <keescook@chromium.org> - 2016-06-13 22:20 +0200
              Re: [PATCH] gcc-plugins: disable under COMPILE_TEST Michael Ellerman <mpe@ellerman.id.au> - 2016-06-14 04:10 +0200
  Re: [PATCH] gcc-plugins: disable under COMPILE_TEST Sudip Mukherjee <sudipm.mukherjee@gmail.com> - 2016-06-13 10:00 +0200
  Re: [PATCH] gcc-plugins: disable under COMPILE_TEST Sedat Dilek <sedat.dilek@gmail.com> - 2016-06-13 10:50 +0200
    Re: [PATCH] gcc-plugins: disable under COMPILE_TEST Kees Cook <keescook@chromium.org> - 2016-06-13 22:20 +0200

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