[PATCH] D80390: [WIP][mips] Support 64-bit relative relocations
Fangrui Song via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Sat May 30 09:31:22 PDT 2020
MaskRay added a comment.
In D80390#2064895 <https://reviews.llvm.org/D80390#2064895>, @joewholden wrote:
> Ok so, just stumbled upon one issue but I'm not yet sure where the problem lies given how bad mips support is in Go:
>
> ld: error: section type mismatch for .debug_line
>
> >>> /tmp/go-link-985122218/000010.o:(.debug_line): SHT_MIPS_DWARF
> >>> output section .debug_line: SHT_PROGBITS
>
> I'm still testing though, so I'll see what I uncover...
According to https://github.com/llvm/llvm-project/blob/master/llvm/lib/MC/MCObjectFileInfo.cpp#L404 , .debug_line on MIPS should use `SHT_MIPS_DWARF` (different from all other targets). Go produced assembly should do the same. LLD has such a rigorous check for section type compatibility.
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https://reviews.llvm.org/D80390/new/
https://reviews.llvm.org/D80390
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