* LLVM/clang ias build fails with unsupported arguments '-mpower4' and '-many' to option 'Wa,'
@ 2021-09-13 9:48 ` Paul Menzel
0 siblings, 0 replies; 2+ messages in thread
From: Paul Menzel @ 2021-09-13 9:48 UTC (permalink / raw)
To: Michael Ellerman, Benjamin Herrenschmidt, Paul Mackerras
Cc: Derek Parker, llvm, Nick Desaulniers, Nathan Chancellor,
Dmitrii Okunev, 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
^ permalink raw reply [flat|nested] 2+ messages in thread
* LLVM/clang ias build fails with unsupported arguments '-mpower4' and '-many' to option 'Wa,'
@ 2021-09-13 9:48 ` Paul Menzel
0 siblings, 0 replies; 2+ messages in thread
From: Paul Menzel @ 2021-09-13 9:48 UTC (permalink / raw)
To: Michael Ellerman, Benjamin Herrenschmidt, Paul Mackerras
Cc: linuxppc-dev, Derek Parker, Dmitrii Okunev, Nathan Chancellor,
Nick Desaulniers, llvm
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
^ permalink raw reply [flat|nested] 2+ messages in thread
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