toolchain: glibc: set min kernel version to 6.6

Minimum kernel version is 6.6 so it's safe to increase minimum kernel version to 6.6 for glibc too.
This change effectively removes last compatibility quirk in [1] which leads to better/faster detection of SVE support in string ifuncs for aarch64.
Furthermore, this change will allow to use "fchmodat2" syscall within fchmodat() wrapper in future glibc versions (starting from 2.39) as noted in [2] and [3].

[1] https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/aarch64/cpu-features.c;h=4a205a6b35050ffcfac771b4b4ff2d9fb7581f93;hb=refs/heads/release/2.38/master
[2] https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/kernel-features.h;h=86b2d3ce512588c8823c11076c91116092836402;hb=refs/heads/release/2.41/master
[3] https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/fchmodat.c;h=dd1fa5db86bde99fe3eb4804b06c5adf11914b94;hb=refs/heads/release/2.41/master

Signed-off-by: Konstantin Demin <rockdrilla@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/18850
Signed-off-by: Robert Marko <robimarko@gmail.com>
This commit is contained in:
Konstantin Demin 2025-05-20 10:04:14 +03:00 committed by Robert Marko
parent ba923ee5ae
commit 45889aecf8

View file

@ -69,7 +69,7 @@ GLIBC_CONFIGURE:= \
$(if $(CONFIG_PKG_RELRO_FULL),--enable-bind-now) \
$(if $(CONFIG_PKG_FORTIFY_SOURCE_1),--enable-fortify-source=1) \
$(if $(CONFIG_PKG_FORTIFY_SOURCE_2),--enable-fortify-source=2) \
--enable-kernel=5.15.0
--enable-kernel=6.6.0
export libc_cv_ssp=no
export libc_cv_ssp_strong=no