linux-hardening - Re: [PATCH] gcc-plugins: simplify GCC plugin-dev capability test

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Message-ID: <c2a968fa-5a98-d9ea-3255-1e3be3e9c704@nvidia.com>
Date:   Fri, 18 Dec 2020 15:55:38 +0000
From:   Jon Hunter <jonathanh@...dia.com>
To:     Masahiro Yamada <masahiroy@...nel.org>
CC:     Marek Szyprowski <m.szyprowski@...sung.com>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        Kees Cook <keescook@...omium.org>,
        "Emese Revfy" <re.emese@...il.com>,
        <linux-hardening@...r.kernel.org>,
        "Linus Torvalds" <torvalds@...ux-foundation.org>,
        Nathan Chancellor <natechancellor@...il.com>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        clang-built-linux <clang-built-linux@...glegroups.com>,
        "Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
        linux-tegra <linux-tegra@...r.kernel.org>
Subject: Re: [PATCH] gcc-plugins: simplify GCC plugin-dev capability test



On 18/12/2020 15:42, Masahiro Yamada wrote:

...

>> However, if you are saying that this is a problem/bug with our builders,
>> then of course we will have to get this fixed.
>>
> 
> 
> Yes, please do so.
> 
> 
> Kconfig evaluates $(CC) capabilities, and
> hides CONFIG options it cannot support.
> 
> 
> In contrast, we do not do that for $(HOSTCC)
> capabilities because it is just a matter of some
> missing packages.
> 
> 
> For example, if you enable CONFIG_SYSTEM_TRUSTED_KEYRING
> and fail to build scripts/extrace-cert.c
> due to missing <openssl/bio.h>,
> you need to install the openssl dev package.
> 
> It is the same pattern.


OK, thanks for confirming. We will get this fixed.

Cheers Jon

-- 
nvpublic