LLVM/clang ias build fails with unsupported arguments '-mpower4' and '-many' to option 'Wa,'
From: Paul Menzel <hidden>
Date: 2021-09-13 09:49:01
Also in:
linuxppc-dev
Dear Linux folks, Building Linux with LLVM’s integrated assembler fails with the error below [1].
$ ARCH=powerpc CROSS_COMPILE=powerpc64le-linux-gnu- make LLVM=1 LLVM_IAS=1 -j72 pseries_defconfig arch/powerpc/kernel/vdso32/gettimeofday.o
...
arch/powerpc/kernel/vdso32/gettimeofday.S:72:8: error: unsupported directive '.stabs'
.stabs "_restgpr_31_x:F-1",36,0,0,_restgpr_31_x; .globl _restgpr_31_x; _restgpr_31_x:
^
arch/powerpc/kernel/vdso32/gettimeofday.S:73:8: error: unsupported directive '.stabs'
.stabs "_rest32gpr_31_x:F-1",36,0,0,_rest32gpr_31_x; .globl _rest32gpr_31_x; _rest32gpr_31_x:
^
The LLVM developers are not planning on implementing this, as Stab has been succeeded by DWARF [2]. Kind regards, Paul [1]: https://github.com/ClangBuiltLinux/linux/issues/1418 [2]: https://bugs.llvm.org/show_bug.cgi?id=31134