[PATCH] D74205: [llvm-dwarfdump] Add the --show-sections-sizes option

Mon Mar 30 00:30:04 PDT 2020

jhenderson added a comment.

In D74205#1946237 <https://reviews.llvm.org/D74205#1946237>, @aprantl wrote:

> In D74205#1946026 <https://reviews.llvm.org/D74205#1946026>, @djtodoro wrote:
>
> > I think that @aprantl wanted a test for Mach-O and archives, back then. I've added a test for mach-o and archive, in one shot (by using pre-existing fat mach-o archive from dsymutil).
>
>
> What makes the dsymutil test special is that you can have fat (=multi-architecture) Mach-O binaries inside a static archive and it is important to test that this case is handled correctly, because you have two layers of multi-file enumeration going on. Since we already have it checked in as a binary I thought reusing it would be preferable over checking in yet another opaque binary. If we can generate one one the fly, that's fine, too.

I'm not at all familiar with Mach-O, so how do fat archives get generated (i.e. with what tool?)? Is there an LLVM equivalent we can use here?

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https://reviews.llvm.org/D74205