(I think Kerry's reply went to a different thread...)
On Thursday, April 23, 2020 at 5:11:05 PM UTC-7, Crouse, Kerry wrote: > > David, > > Thank you for your very prompt reply! I am required (for > compatibility) to use version 2.6.0. I'm not sure this makes much of a > difference. What I am attempting to ultimately accomplish is turn the > .proto files into code I can feed into the PowerPC cross compiler to > generate code as part of the static image to load onto the PowerPC. > Yes, this is something that (conceptually) should work. (But there are more details...) > Perhaps I'm not thinking about this process in the correct manner. If I > generate Protoc using that cross compiler, Protoc will have to be run on > the PowerPC? If so, my goal is defeated. I don't think, however, that > running the x86 Protoc will give me the correct data structures and code. > Perhaps I'm completely backwards. > > > This is notionally correct. However, the compatibility and ABI surfaces within the protobuf suite are ... let's say, "complex." :-) If the PPC32 target uses version 2.6.0, then you'll need to use the protoc from that version. The generated protobuf code is version-locked, in the sense that the generated code is effectively API- and ABI-locked to internal APIs in the (non-generated) protobuf runtime libraries. (This is somewhat similar to Qt and moc, if you are familiar with cross-building Qt-based projects... protobuf has a few more notional "API surfaces," but the idea is similar.) If you have the sources that were used to build the ppc32 runtimes, you should be able to build for your host using those. Alternatively, you can grab a tarball from that release here: https://github.com/protocolbuffers/protobuf/releases/tag/v2.6.0 I would also suggest upgrading from 2.6.0 if you can (but it sounds like this may be a hard constraint for you... in which case, you have my sympathies). --dlj -- You received this message because you are subscribed to the Google Groups "Protocol Buffers" group. To unsubscribe from this group and stop receiving emails from it, send an email to protobuf+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/protobuf/4de8622c-7ad4-4dd8-b3ed-0effa4702dd6%40googlegroups.com.
