Add dependency generator for kABI provides

The only difference from RHEL 7 is that we're looking for symvers file
in /lib/modules now, per #1609695[1].

[1] https://bugzilla.redhat.com/show_bug.cgi?id=1609695

- Add dependency generator for kABI provides

Resolves: #1942563
Resolves: #2008554
Signed-off-by: Eugene Syromiatnikov <esyr@redhat.com>

kabi.attr

@@ -0,0 +1,2 @@
+%__kabi_provides	%{_rpmconfigdir}/kabi.sh
+%__kabi_path            ^/lib/modules/[1-9].*/symvers.gz$

kabi.sh

@@ -0,0 +1,13 @@
+#!/bin/bash +x
+#
+# kabi.sh - Automatically extract any kernel symbol checksum from the
+#           symvers file and add to RPM deps.  This is used to move the
+#           checksum checking from modprobe to rpm install for 3rd party
+#           modules (so they can fail during install and not at load).
+
+IFS=$'\n'
+
+for symvers in $(grep -E '/lib/modules/[1-9].*/symvers\.gz') "$@";
+do
+    zcat $symvers | awk ' {print "kernel(" $2 ") = " $1 }'
+done

kernel-srpm-macros.spec

@@ -30,6 +30,10 @@ Source300:      kmodtool
 Source301:      rpmsort
 Source302:      symset-table
 
+# kabi provides generator
+Source400: kabi.attr
+Source401: kabi.sh
+
 %global rrcdir /usr/lib/rpm/redhat
 
 
@@ -74,13 +78,17 @@ install -p -m 644 -t %{buildroot}%{rrcdir}/find-provides.d firmware.prov modalia
 install -p -m 644 -t %{buildroot}%{_rpmconfigdir}/macros.d macros.kmp
 install -p -m 644 -t %{buildroot}%{_fileattrsdir} kmod.attr
 
+install -p -m 644 -t "%{buildroot}%{_fileattrsdir}" kabi.attr
+install -p -m 755 -t "%{buildroot}%{_rpmconfigdir}" kabi.sh
 
 %files
 %{_rpmconfigdir}/macros.d/macros.kernel-srpm
 %{_fileattrsdir}/kmod.attr
 
 %files -n kernel-rpm-macros
+%{_rpmconfigdir}/kabi.sh
 %{_rpmconfigdir}/macros.d/macros.kmp
+%{_fileattrsdir}/kabi.attr
 %dir %{rrcdir}/find-provides.d
 %{rrcdir}/kmodtool
 %{rrcdir}/rpmsort