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ld.lld: error: unknown argument '-fPIC' #1991

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nathanchance opened this issue Feb 14, 2024 · 1 comment
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ld.lld: error: unknown argument '-fPIC' #1991

nathanchance opened this issue Feb 14, 2024 · 1 comment
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[ARCH] s390 This bug impacts ARCH=s390 [BUG] linux A bug that should be fixed in the mainline kernel. [FIXED][LINUX] 6.9 This bug was fixed in Linux 6.9 [TOOL] lld The issue is relevant to LLD linker

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When attempting to build ARCH=s390 defconfig with ld.lld (available after llvm/llvm-project@fe3406e), there is an error when building the vDSO:

$ make -skj"$(nproc)" ARCH=s390 LLVM=1 OBJCOPY=s390x-linux-gnu-objcopy OBJDUMP=s390x-linux-gnu-objdump mrproper defconfig all
ld.lld: error: unknown argument '-fPIC'
make[4]: *** [arch/s390/kernel/vdso64/Makefile:53: arch/s390/kernel/vdso64/vdso64.so.dbg] Error 1

Patch submitted and accepted: https://git.kernel.org/s390/c/0628c03934187be33942580e10bb9afcc61adeed
@nathanchance nathanchance added [BUG] linux A bug that should be fixed in the mainline kernel. [TOOL] lld The issue is relevant to LLD linker [PATCH] Accepted A submitted patch has been accepted upstream [ARCH] s390 This bug impacts ARCH=s390 labels Feb 14, 2024
@nathanchance nathanchance self-assigned this Feb 14, 2024
This was referenced Feb 14, 2024
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nathanchance added a commit to nathanchance/continuous-integration2 that referenced this issue Feb 21, 2024
@nathanchance
generator: yml: Use LLVM=1 for ARCH=s390 on linux-next with tip of tr…
c41724b 
…ee LLVM

With LLVM main, which has the necessary changes to ld.lld and
llvm-objcopy to support s390, and linux-next, which has the necessary
changes to the kernel to support these tools, ARCH=s390 builds cleanly
with LLVM=1. Cut builds that satisfy these conditions over to LLVM=1 so
that regressions with this working setup do not occur.

Link: llvm/llvm-project@fe3406e
Link: llvm/llvm-project@3c02cb7
Link: ClangBuiltLinux/linux#859
Link: ClangBuiltLinux/linux#1991
Link: ClangBuiltLinux/linux#1992
Link: ClangBuiltLinux/linux#1993
Link: ClangBuiltLinux/linux#1994
Link: ClangBuiltLinux/linux#1995
Link: ClangBuiltLinux/linux#1996
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
@nathanchance nathanchance mentioned this issue Feb 21, 2024
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Merged into mainline: https://git.kernel.org/linus/0628c03934187be33942580e10bb9afcc61adeed

@nathanchance nathanchance added [FIXED][LINUX] 6.9 This bug was fixed in Linux 6.9 and removed [PATCH] Accepted A submitted patch has been accepted upstream labels Mar 15, 2024
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[ARCH] s390 This bug impacts ARCH=s390 [BUG] linux A bug that should be fixed in the mainline kernel. [FIXED][LINUX] 6.9 This bug was fixed in Linux 6.9 [TOOL] lld The issue is relevant to LLD linker
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