On Mon, Oct 07, 2013 at 01:56:29PM +0200, Ingo Molnar wrote:

SNIP

> -FEATURE_TESTS =                              \
> -     hello                           \
> -     stackprotector-all              \
> -     stackprotector                  \
> -     volatile-register-var           \
> +#
> +# Note that this is not a complete list of all feature tests, just
> +# those that are typically built on a fully configured system.
> +#
> +# [ Feature tests not mentioned here have to be built explicitly in
> +#   the rule that uses them - an example for that is the 'bionic'
> +#   feature check. ]
> +#
> +CORE_FEATURE_TESTS =                 \
> +     backtrace                       \
> +     dwarf                           \
>       fortify-source                  \
> -     bionic                          \
> -     libelf                          \
>       glibc                           \
> -     dwarf                           \
> -     libelf-mmap                     \
> -     libelf-getphdrnum               \
> -     libunwind                       \
> -     libaudit                        \
> -     libslang                        \
>       gtk2                            \
>       gtk2-infobar                    \
> +     libaudit                        \
> +     libbfd                          \
> +     libelf                          \
> +     libelf-getphdrnum               \
> +     libelf-mmap                     \
> +     libnuma                         \
>       libperl                         \
>       libpython                       \
>       libpython-version               \
> -     libbfd                          \
> +     libslang                        \
> +     libunwind                       \
>       on-exit                         \
> -     backtrace                       \
> -     libnuma
> +     stackprotector-all              \

missing stackprotector?

I guess that various gcc version could support either
of them or both.. so we need to check for both

looks like -fstack-protector-all overloads -fstack-protector
but no harm to have them both added probably ;-)

jirka
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