[SYCL][clang-offload-bundler] Add support for BC files in archives.

[LU-JOHN]

Add support for -list, -check-section, and -unbundle for bundled BC files in archives.

[asudarsa]

Add support for -list, -check-section, and -unbundle for bundled BC files in archives.

Can you please elaborate here on why this change is required? For a generic target audience. Thanks

[LU-JOHN]

Can you please elaborate here on why this change is required? For a generic target audience. Thanks

The ability to maintain the symbols and properties as generated when creating early FPGA images is required when moving from early archives to image archives or executables. This information is retained in the wrapped device image. This image needs to be retained in the FPGA early archive as a bundled wrapped file (wrapped files are .bc files) where the compiler can obtain this wrapped file and process it for final image generation and providing these symbols and properties in the final image of the executable.

[asudarsa]

Hi @maksimsab

We are trying to add support here for cases where the archive file will contain .bc file. Previously, we handle only those archive files which have .o files.
Can you please comment if we will need this check for archives containing .bc files?

Thanks

[maksimsab]

I don't know at the moment whether we will need it in the future.
This particular piece of code was related to handling of "FPGA" part. Frankly speaking, we don't have a concrete design for them.

[asudarsa]

These changes look good to me. Minor tweaks requested.

Thanks

[mdtoguchi]

OK for driver