[Buildroot] [PATCH] glibc: needs kernel headers >= 4.5 on mips(64)
Yann E. MORIN
yann.morin.1998 at free.fr
Tue Aug 29 21:09:15 UTC 2017
Romain, All,
On 2017-08-20 16:41 +0200, Romain Naour spake thusly:
> Since glibc 2.23 [1]:
> sysdeps/unix/sysv/linux/mips/configure.ac
> [...]
> if test -z "$arch_minimum_kernel"; then
> if test x$libc_cv_mips_nan2008 = xyes; then
> arch_minimum_kernel=4.5.0
> fi
> fi
>
> This mean that if nan2008 support is requested (i.e BR2_MIPS_NAN_2008
> in Buildroot) the minimum kernel headers version is 4.5.0 (not 3.2.0).
>
> To simplify the dependancy handling in Buildroot we add this dependency
> for all mips(64), even if BR2_MIPS_NAN_2008 is not selected.
>
> [1] https://sourceware.org/git/?p=glibc.git;a=commit;h=d5f2798a0ac9d5ad8ad7a506a2f840035135e2d2
>
> Signed-off-by: Romain Naour <romain.naour at gmail.com>
> Cc: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
> Cc: Vicente Olivert Riera <Vincent.Riera at imgtec.com>
> ---
>
> This is for master.
>
> I tried to use BR2_MIPS_NAN_2008 but it trigger a circular dependency in Kconfig.
After the discussion in this thread and on IRC, I've marked this patch
as "Changes Requested".
Now I just have to polish my own series that has a fix for that issue...
Thanks! ;-)
Regards,
Yann E. MORIN.
> toolchain/toolchain-buildroot/Config.in | 10 ++++++++--
> 1 file changed, 8 insertions(+), 2 deletions(-)
>
> diff --git a/toolchain/toolchain-buildroot/Config.in b/toolchain/toolchain-buildroot/Config.in
> index f47001f..967da1a 100644
> --- a/toolchain/toolchain-buildroot/Config.in
> +++ b/toolchain/toolchain-buildroot/Config.in
> @@ -43,8 +43,9 @@ config BR2_TOOLCHAIN_BUILDROOT_UCLIBC
> config BR2_TOOLCHAIN_BUILDROOT_GLIBC
> bool "glibc"
> depends on BR2_arm || BR2_armeb || BR2_aarch64 || \
> - BR2_aarch64_be || BR2_i386 || BR2_mips || \
> - BR2_mipsel || BR2_mips64 || BR2_mips64el|| \
> + BR2_aarch64_be || BR2_i386 || \
> + ((BR2_mips || BR2_mipsel || BR2_mips64 || BR2_mips64el) && \
> + BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_5) || \
> BR2_powerpc || BR2_powerpc64 || BR2_powerpc64le || \
> BR2_sh || BR2_sparc64 || BR2_x86_64 || \
> BR2_microblaze || BR2_nios2
> @@ -65,6 +66,11 @@ comment "glibc needs a toolchain w/ dynamic library, kernel headers >= 3.2"
> depends on BR2_USE_MMU
> depends on BR2_STATIC_LIBS || !BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_2
>
> +# glibc require kernel headers >= 4.5 if nan2008 support is selected.
> +comment "glibc on mips(64) needs a toolchain w/ headers >= 4.5"
> + depends on BR2_mips || BR2_mipsel || BR2_mips64 || BR2_mips64el
> + depends on !BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_5
> +
> config BR2_TOOLCHAIN_BUILDROOT_MUSL
> bool "musl"
> depends on BR2_aarch64 || BR2_arm || BR2_armeb || BR2_i386 || \
> --
> 2.9.5
>
> _______________________________________________
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> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot
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