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kernel.spec: xz compress modules on i686 and x86_64 

Pretty grody, but it seems to be working... it has to happen after
module signing (obviously) and after find-debuginfo.sh runs as well, so
tacking it onto the end seems sensible, and then just fixing up the file
lists as we go. Provides a nice tidy savings to the disk footprint:

kyle@dreadnought:~% for i in kernel-core-3.15.0-0.rc3.git4.1.fc21.x86_64.rpm \
kernel-core-3.15.0-0.rc3.git4.1.fc21.x86_64.rpm.1; do \
 rpm -qip $i | grep '^Size'; done
Size        : 43011603
Size        : 81106737

kmod has handed .xz and .gz modules for a long time now, and can cope.

I was thinking we might also %ghost the .ko, and have a %post install
script that un-xz the modules in /proc/modules, but none of them are big
enough for that to be worthwhile I think (maybe XFS, but I doubt it.)

--Kyle
This commit is contained in:
Kyle McMartin 2014-05-06 13:02:24 -04:00 committed by Josh Boyer
parent 54a9e1a9cf
commit 8922622858
1 changed files with 12 additions and 3 deletions
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15
kernel.spec
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@ -12,8 +12,14 @@ Summary: The Linux kernel
# architectures are added.
%ifarch %{ix86} x86_64
%global signmodules 1
%global zipmodules 1
%else
%global signmodules 0
%global zipmodules 0
%endif
%if %{zipmodules}
%global zipsed -e 's/\.ko$/\.ko.xz/'
%endif
# % define buildid .local
@ -1703,9 +1709,9 @@ BuildKernel() {
# Make sure the files lists start with absolute paths or rpmbuild fails.
# Also add in the dir entries
sed -e 's/^lib*/\/lib/' $RPM_BUILD_ROOT/k-d.list > ../kernel${Flavour:+-${Flavour}}-modules.list
sed -e 's/^lib*/%dir \/lib/' $RPM_BUILD_ROOT/module-dirs.list > ../kernel${Flavour:+-${Flavour}}-core.list
sed -e 's/^lib*/\/lib/' $RPM_BUILD_ROOT/modules.list >> ../kernel${Flavour:+-${Flavour}}-core.list
sed -e 's/^lib*/\/lib/' %{?zipsed} $RPM_BUILD_ROOT/k-d.list > ../kernel${Flavour:+-${Flavour}}-modules.list
sed -e 's/^lib*/%dir \/lib/' %{?zipsed} $RPM_BUILD_ROOT/module-dirs.list > ../kernel${Flavour:+-${Flavour}}-core.list
sed -e 's/^lib*/\/lib/' %{?zipsed} $RPM_BUILD_ROOT/modules.list >> ../kernel${Flavour:+-${Flavour}}-core.list
# Cleanup
rm -f $RPM_BUILD_ROOT/k-d.list
@ -1826,6 +1832,9 @@ popd
%{modsign_cmd} signing_key.priv.sign signing_key.x509.sign $RPM_BUILD_ROOT/lib/modules/%{KVERREL}/ \
fi \
fi \
if [ "%{zipmodules}" -eq "1" ]; then \
find $RPM_BUILD_ROOT/lib/modules/ -type f -name '*.ko' | xargs xz; \
fi \
%{nil}
###