[PATCH] D93525: [OpenMP] Add unbundling of archives containing bundled object files into device specific archives

Tue Jan 12 10:57:27 PST 2021

t-tye added a comment.

In D93525#2493024 <https://reviews.llvm.org/D93525#2493024>, @yaxunl wrote:

> can you document this in ClangOffloadBundler.rst ? I think we need a clear description about how clang-offload-bundler knows which file in the .a file belongs to which target.

How does the .a relate to bundled code objects? Does the .a have a number of bundled code objects? If so wouldn't the identity of code objects be defined by the existing bundled code object ABI already documented? If the .a is a set of non-bundled code objects then defining how they are identified is not part of the clang-offload-bundler documentation as there are no bundled code objects involved. It would seem that the documentation belongs with the OpenMP runtime/compiler that is choosing to use .a files in this manner.

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https://reviews.llvm.org/D93525