[PATCH] D129401: [libLTO] Set data-sections by default in libLTO for ELF and XCOFF.

Mon Jul 18 08:42:50 PDT 2022

w2yehia added a comment.

In D129401#3655316 <https://reviews.llvm.org/D129401#3655316>, @quinnp wrote:

> I've realized that `getExplicitDataSections()` interacts with ...

Yes, that seems to be the case that clang forwards <https://github.com/llvm/llvm-project/blob/2e91266942509f9cabec925a1a59dab31bd07634/clang/lib/Driver/ToolChains/CommonArgs.cpp#L574> the -data-sections option to libLTO/gold only when it's ON. It might be that at that time teh default was assumed to be OFF in libLTO/gold.
Users can still disable it by passing the option manually (i.e. `-plugin-opt=-data-sections=0`).
The forwarding logic in clang shud be fixed at some point.

Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D129401/new/

https://reviews.llvm.org/D129401