Add coverage for RHEL-50536

Backport .relro_padding entsize fix

tests/bugs/Backport-relro_padding-entsize-fix/main.fmf

@@ -0,0 +1,9 @@
+summary: Backport .relro_padding entsize fix
+
+duration: 5m
+
+require+:
+  - xz
+
+link+:
+  - verifies: https://issues.redhat.com/browse/RHEL-50536

tests/bugs/Backport-relro_padding-entsize-fix/test.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+# Include Beaker environment
+. /usr/share/beakerlib/beakerlib.sh || exit 1
+
+. "$TMT_TREE/tests/lib.sh" || exit 1
+
+rlJournalStart
+    rlPhaseStartSetup
+        buTestHeader
+        buEnterTmpDir
+
+        buCopyReproducers "libclang.so.18.1.xz"
+        rlRun "unxz $TmpDir/libclang.so.18.1.xz"
+    rlPhaseEnd
+
+    rlPhaseStartTest
+        rlRun "objcopy $TmpDir/libclang.so.18.1 $TmpDir/libclang.so.18.1.copy"
+        rlRun -s "readelf --section-headers $TmpDir/libclang.so.18.1.copy"
+        rlAssertEquals "entsize has expected value" "00" "$(grep -E '.relro_padding' "$rlRun_LOG" | awk '{print $7}')"
+    rlPhaseEnd
+
+    rlPhaseStartCleanup
+        buExitTmpDir
+    rlPhaseEnd
+rlJournalPrintText
+rlJournalEnd