[PATCH] D105217: [LLD] Adding support for RELA for CG Profile.

[Alexander Yermolovich via Phabricator via llvm-commits]

ayermolo added a comment.

In D105217#2851133 <https://reviews.llvm.org/D105217#2851133>, @MaskRay wrote:

> Why is `strip -S` is part of the step running on intermediate object files?
>
> The usually operation is to do strip only on linked images. If you want to have smaller intermediate object files, you may use -gsplit-dwarf or -gsplit-dwarf=single.

Good question. My understanding of the usage model after talking to someone knowledgable in build system is that there are two issues. First we have a large set of pre-build libraries that various projects link against and they are build with monolithic debug information. Second is how caching of object files works within the build system. It allows flexibility for projects to re-use objects  with and without debug information. Second part can be mitigated if build system supported dwo files, but right now it doesn't.
There is another potential issue. For example if there is some post processing tool for object files/binaries that doesn't support split dwarf. As an example until recently BOLT project only supported monolithic debug information.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D105217/new/

https://reviews.llvm.org/D105217