CT_LIBC_GLIBC_MIN_KERNEL(_VERSION)?

Yann E. MORIN yann.morin.1998@anciens.enib.fr
Sun Mar 27 18:01:00 GMT 2011


Esben, All,

On Sunday 27 March 2011 19:38:40 Esben Haabendal wrote:
> Is CT_LIBC_GLIBC_MIN_KERNEL being replaced with
> CT_LIBC_GLIBC_MIN_KERNEL_VERSION?

Nope, not as far as I know... :-)

CT_LIBC_GLIBC_MIN_KERNEL_VERSION is the value the user enters in the
menuconfig, CT_LIBC_GLIBC_MIN_KERNEL is the value that scripts shall
test.

CT_LIBC_GLIBC_MIN_KERNEL  gets its value either from the configured
kernel version in the kernel section, or from the user supplied version.

> This is status right now:
[--SNIP--]
> scripts/build/libc/eglibc.sh:2232:    extra_config+=("--enable-kernel=$(echo ${CT_LIBC_GLIBC_MIN_KERNEL} |sed -r -e 's/^([^.]+\.[^.]+\.[^.]+)(|\.[^.]+)$/\1/;')")
> scripts/build/libc_eglibc.sh:810:    extra_config="--enable-kernel=$(echo ${CT_LIBC_GLIBC_MIN_KERNEL} |sed -r -e 's/^([^.]+\.[^.]+\.[^.]+)(|\.[^.]+)$/\1/;')"
> scripts/build/libc/glibc-eglibc.sh-common:2353:                min_kernel_config="$( echo "${CT_LIBC_GLIBC_MIN_KERNEL_VERSION}"            \
> scripts/build/libc/glibc.sh:2272:                min_kernel_config="--enable-kernel=$(echo ${CT_LIBC_GLIBC_MIN_KERNEL_VERSION} |sed -r -e 's/^([^.]+\.[^.]+\.[^.]+)(|\.[^.]+)$/\1/;')"
> scripts/build/libc_glibc.sh:810:    extra_config="--enable-kernel=$(echo ${CT_LIBC_GLIBC_MIN_KERNEL} |sed -r -e 's/^([^.]+\.[^.]+\.[^.]+)(|\.[^.]+)$/\1/;')"
> scripts/build/libc_glibc.sh:810:        *) extra_config="${extra_config} --enable-kernel=$(echo ${CT_LIBC_GLIBC_MIN_KERNEL} |sed -r -e 's/^([^.]+\.[^.]+\.[^.]+)(|\.[^.]+)$/\1/;')"
> 
> Doesn't look right...

What version is that? In the latest release (1.10.0), glibc and eglibc code
paths have been merged, and there is a single code path that computes the
minimal kernel version. See:
  scripts/build/libc/glibc-eglibc.sh-common@285

(although there appears to be an issue in tht code when the user choose to
let ./configure decide. I'll look at it.)

Regards,
Yann E. MORIN.

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