Description of problem:
ghc-9.4.3 builds are failing in epel9 for s390x with llvm >= 13.

How reproducible:
100%

Actual results:

a. https://koji.fedoraproject.org/koji/taskinfo?taskID=93910404

| Run Ghc CompileHs Stage1: rts/StgStartup.cmm => _build/stage1/rts/build/cmm/StgStartup.thr_o
Command line: _build/stage0/bin/ghc -Wall -Wcompat -fdiagnostics-color=never -dynamic-too -hisuf hi -osuf o -hcsuf hc -static -hide-all-packages -no-user-package-db '-package-env -' '-package-db _build/stage1/lib/package.conf.d' '-this-unit-id rts-1.0.2' -i -i/builddir/build/BUILD/ghc-9.4.3/_build/stage1/rts/build -i/builddir/build/BUILD/ghc-9.4.3/_build/stage1/rts/build/autogen -i/builddir/build/BUILD/ghc-9.4.3/rts -Irts/include -I_build/stage1/rts/build -I_build/stage1/rts/build/include -Irts/include -optP-include -optP_build/stage1/rts/build/autogen/cabal_macros.h -ghcversion-file=rts/include/ghcversion.h -outputdir _build/stage1/rts/build -Wnoncanonical-monad-instances -optc-Wno-error=inline -optP-Wno-nonportable-include-path -c rts/StgStartup.cmm -o _build/stage1/rts/build/cmm/StgStartup.o -O0 -H64m -this-unit-id rts -XHaskell98 -no-global-package-db -package-db=/builddir/build/BUILD/ghc-9.4.3/_build/stage1/lib/package.conf.d -ghcversion-file=rts/include/ghcversion.h -ghcversion-file=rts/include/ghcversion.h -O -Irts -I_build/stage1/rts/build '-DRtsWay="rts_v"' -DFS_NAMESPACE=rts -DCOMPILING_RTS -Wno-deprecated-flags -Wcpp-undef -fllvm
===> Command failed with error code: 1
/tmp/ghc48723_0/ghc_7.s: Assembler messages:
/tmp/ghc48723_0/ghc_7.s:219:0: error:
     Fatal error: unrecognized .section attribute: want a,e,o,w,x,M,S,G,T or number
    |
219 |         .section        .data.stg_stop_thread_info,"awR",@progbits
    | ^
`gcc' failed in phase `Assembler'. (Exit code: 1)

b. https://koji.fedoraproject.org/koji/taskinfo?taskID=93895014

| Run Ghc CompileHs Stage1: rts/StgStartup.cmm => _build/stage1/rts/build/cmm/StgStartup.thr_o
Command line: _build/stage0/bin/ghc -Wall -Wcompat -fdiagnostics-color=never -hisuf thr_hi -osuf thr_o -hcsuf thr_hc -static -optc-DTHREADED_RTS -hide-all-packages -no-user-package-db '-package-env -' '-package-db _build/stage1/lib/package.conf.d' '-this-unit-id rts-1.0.2' -i -i/builddir/build/BUILD/ghc-9.4.3/_build/stage1/rts/build -i/builddir/build/BUILD/ghc-9.4.3/_build/stage1/rts/build/autogen -i/builddir/build/BUILD/ghc-9.4.3/rts -Irts/include -I_build/stage1/rts/build -I_build/stage1/rts/build/include -Irts/include -optP-include -optP_build/stage1/rts/build/autogen/cabal_macros.h -ghcversion-file=rts/include/ghcversion.h -outputdir _build/stage1/rts/build -Wnoncanonical-monad-instances -optc-Wno-error=inline -optP-Wno-nonportable-include-path -c rts/StgStartup.cmm -o _build/stage1/rts/build/cmm/StgStartup.thr_o -O0 -H64m -this-unit-id rts -XHaskell98 -no-global-package-db -package-db=/builddir/build/BUILD/ghc-9.4.3/_build/stage1/lib/package.conf.d -ghcversion-file=rts/include/ghcversion.h -ghcversion-file=rts/include/ghcversion.h -O -Irts -I_build/stage1/rts/build '-DRtsWay="rts_thr"' -DFS_NAMESPACE=rts -DCOMPILING_RTS -DTHREADED_RTS -Wno-deprecated-flags -Wcpp-undef -fllvm
===> Command failed with error code: 1
/tmp/ghc1796564_0/ghc_7.s: Assembler messages:
/tmp/ghc1796564_0/ghc_7.s:223:0: error:
     Fatal error: unrecognized .section attribute: want a,e,o,w,x,M,S,G,T or number
    |
223 |         .section        .data.stg_stop_thread_info,"awR",@progbits
    | ^
`gcc' failed in phase `Assembler'. (Exit code: 1)
Command failed
Build failed.

c. https://koji.fedoraproject.org/koji/taskinfo?taskID=93892205

| Run Ghc CompileHs Stage1: rts/Compact.cmm => _build/stage1/rts/build/cmm/Compact.thr_o
Command line: _build/stage0/bin/ghc -Wall -Wcompat -fdiagnostics-color=never -hisuf thr_hi -osuf thr_o -hcsuf thr_hc -static -optc-DTHREADED_RTS -hide-all-packages -no-user-package-db '-package-env -' '-package-db _build/stage1/lib/package.conf.d' '-this-unit-id rts-1.0.2' -i -i/builddir/build/BUILD/ghc-9.4.3/_build/stage1/rts/build -i/builddir/build/BUILD/ghc-9.4.3/_build/stage1/rts/build/autogen -i/builddir/build/BUILD/ghc-9.4.3/rts -Irts/include -I_build/stage1/rts/build -I_build/stage1/rts/build/include -Irts/include -optP-include -optP_build/stage1/rts/build/autogen/cabal_macros.h -ghcversion-file=rts/include/ghcversion.h -outputdir _build/stage1/rts/build -Wnoncanonical-monad-instances -optc-Wno-error=inline -optP-Wno-nonportable-include-path -c rts/Compact.cmm -o _build/stage1/rts/build/cmm/Compact.thr_o -O -H64m -this-unit-id rts -XHaskell98 -no-global-package-db -package-db=/builddir/build/BUILD/ghc-9.4.3/_build/stage1/lib/package.conf.d -ghcversion-file=rts/include/ghcversion.h -ghcversion-file=rts/include/ghcversion.h -O2 -Irts -I_build/stage1/rts/build '-DRtsWay="rts_thr"' -DFS_NAMESPACE=rts -DCOMPILING_RTS -DTHREADED_RTS -Wno-deprecated-flags -Wcpp-undef -fllvm
===> Command failed with error code: 1
/tmp/ghc3858075_0/ghc_7.s: Assembler messages:
/tmp/ghc3858075_0/ghc_7.s:1687:0: error:
     Fatal error: unrecognized .section attribute: want a,e,o,w,x,M,S,G,T or number
     |
1687 |         .section        ".rodata.c3s_str$def","aR",@progbits
     | ^
`gcc' failed in phase `Assembler'. (Exit code: 1)
Command failed
Build failed.

Expected results:
no failure

Additional info:
ghc 9.2.5 seems okay, as does 9.4.3 without Hadrian
Also no problem in Fedora releases, only EPEL 9