kpatch build dependency cleanup #1271
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EPEL ships an epel-release-latest-X.noarch.rpm per rhel-X major release. Install the package matching the system release. Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>
The yum-builddep utility doesn't always install all the kernel build dependencies. Using the --skip-unavailable flag (rhel8+) lets us skip over packages that it can't find, but continue to install the ones it can. (Unavailable packages are usually platform-specific or not strictly necessary for kpatch-build's kernel build invocation.) Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>
All three distributions work more or less the same, so just combine their dependency installs. Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>
Installing the dependencies should be a one-step operation for the user. Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>
We've got a lot of top level Makefile targets, help out the user. Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>
joe-lawrence
commented
May 23, 2022
| @echo | ||
| @echo "[1] requires admin privileges" | ||
| @echo "[2] installs test kpatch kernel modules, run at your own risk" | ||
| @echo |
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(I skipped the vagrant targets since we don't document them on any markdown page.)
sm00th
approved these changes
May 23, 2022
jpoimboe
approved these changes
May 25, 2022
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yum-builddep kernelhas been bugging me for a long time. Sometimes it installs all kernel build dependencies, other times it leaves out obvious packages like bison, flex, bc, etc. The RHEL kernel.spec file is not the most straightforward specfile and I think effort has gone into paring down a minimal dependency set (think about skipping debug builds, kABI, all the other things that the specfile can do). Whether specfile complexity is the root cause or not, the result is that I have to often install additional packages after running test/integration/lib.sh's kpatch_dependencies() function.This patchset modifies kpatch_dependencies()'s
yum-builddepinvocation to add--skip-unavailable, which in my limited tests, seems to render a more complete dependency install. My theory is that without the flag, yum bails out early once it encounters a package it can't install (perhaps a dep for another architecture). With the flag, many more packages do get installed, at least the ones that kpatch-build's kernel build actually requires.A few cleanups were added along the way, including a few top-level Makefile flourishes that I thought would be helpful.