[OS-BUILD PATCH] redhat/kernel.spec.template: update compression variables to support zstd

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Brian Masney <bmasney@xxxxxxxxxx>

redhat/kernel.spec.template: update compression variables to support zstd

Upstream Status: RHEL Only

The kernel.spec.template file has a compression variable to define which
binary is used to compress the kernel modules. The binary is currently
invoked in the following manner: '%compression -c9'. There is a desire
to use zstd for automotive since it results in faster decompression,
and faster boot times. To support zstd, different flags need to be
passed to the compression binary, so let's introduce a compression_flags
variable.

The BuildRequires needs to be updated to include the compression
binary as well since these variables can be overridden on the command
line with "rpmbuild --define 'compression zstd' ...".

The zstd support was tested with the following configuration:

    %global compression zstd
    %global compression_flags --rm
    %global compext zst

Signed-off-by: Brian Masney <bmasney@xxxxxxxxxx>

diff --git a/redhat/kernel.spec.template b/redhat/kernel.spec.template
index blahblah..blahblah 100644
--- a/redhat/kernel.spec.template
+++ b/redhat/kernel.spec.template
@@ -120,6 +120,7 @@ Summary: The Linux kernel
 
 # Default compression algorithm
 %global compression xz
+%global compression_flags -c9
 %global compext xz
 %if %{zipmodules}
 %global zipsed -e 's/\.ko$/\.ko.%compext/'
@@ -659,7 +660,7 @@ Provides: installonlypkg(kernel)
 # List the packages used during the kernel build
 #
 BuildRequires: kmod, bash, coreutils, tar, git-core, which
-BuildRequires: bzip2, xz, findutils, m4, perl-interpreter, perl-Carp, perl-devel, perl-generators, make, diffutils, gawk
+BuildRequires: bzip2, xz, findutils, m4, perl-interpreter, perl-Carp, perl-devel, perl-generators, make, diffutils, gawk, %compression
 BuildRequires: gcc, binutils, redhat-rpm-config, hmaccalc, bison, flex, gcc-c++
 BuildRequires: net-tools, hostname, bc, elfutils-devel
 BuildRequires: dwarves
@@ -2115,7 +2116,7 @@ BuildKernel() {
     # NOTENOTE: checksums to the rpm metadata provides list.
     # NOTENOTE: if you change the symvers name, update the backend too
     echo "**** GENERATING kernel ABI metadata ****"
-    %compression -c9 < Module.symvers > $RPM_BUILD_ROOT/boot/symvers-$KernelVer.%compext
+    %compression %compression_flags < Module.symvers > $RPM_BUILD_ROOT/boot/symvers-$KernelVer.%compext
     cp $RPM_BUILD_ROOT/boot/symvers-$KernelVer.%compext $RPM_BUILD_ROOT/lib/modules/$KernelVer/symvers.%compext
 
 %if %{with_kabichk}
@@ -2824,7 +2825,7 @@ find Documentation -type d | xargs chmod u+w
   fi \
   if [ "%{zipmodules}" -eq "1" ]; then \
     echo "Compressing kernel modules ..." \
-    find $RPM_BUILD_ROOT/lib/modules/ -type f -name '*.ko' | xargs -n 16 -P${RPM_BUILD_NCPUS} -r %compression; \
+    find $RPM_BUILD_ROOT/lib/modules/ -type f -name '*.ko' | xargs -n 16 -P${RPM_BUILD_NCPUS} -r %compression %compression_flags; \
   fi \
 %{nil}
 

--
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/2650
_______________________________________________
kernel mailing list -- kernel@xxxxxxxxxxxxxxxxxxxxxxx
To unsubscribe send an email to kernel-leave@xxxxxxxxxxxxxxxxxxxxxxx
Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/
List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines
List Archives: https://lists.fedoraproject.org/archives/list/kernel@xxxxxxxxxxxxxxxxxxxxxxx
Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue




[Index of Archives]     [Fedora General Discussion]     [Older Fedora Users Archive]     [Fedora Advisory Board]     [Fedora Security]     [Fedora Devel Java]     [Fedora Legacy]     [Fedora Desktop]     [ATA RAID]     [Fedora Marketing]     [Fedora Mentors]     [Fedora Package Announce]     [Fedora Package Review]     [Fedora Music]     [Fedora Packaging]     [Centos]     [Fedora SELinux]     [Coolkey]     [Yum Users]     [Tux]     [Yosemite News]     [KDE Users]     [Fedora Art]     [Fedora Docs]     [USB]     [Asterisk PBX]

  Powered by Linux