[PATCH] D63807: [llvm-objcopy] Add --only-keep-debug for ELF

[Jake Ehrlich via Phabricator via llvm-commits]

jakehehrlich added a comment.

Speaking with Roland on this it seems to be that the established protocol for how you match up vaddrs is to use the program headers. Roland invoked arcane scary references about prelinking and other sharp corners about other possible methods but I don't know or understand the details. The guidance I'm getting is that we need to keep the program headers virtual address space correct. He has stated the program headers are used by many existing tools and that the consumers are more varied than just the two major debuggers. If you need more than a "here be dragons" from Roland I'll probe for more information but I'm content enough with just knowing that the existing protocol requires using program headers.


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  https://reviews.llvm.org/D63807/new/

https://reviews.llvm.org/D63807