Hi I’ve been experimenting with kernel programming in Swift and this required disabling the use of the red zone. Currently Im compiling to ELF on Linux and linking in my own minimal libc/libcpp with libswiftCore.a so its not using any Linux libraries.
I did a PR for adding a '-disable-red-zone' option but it was suggested to add a target triple instead of adding extra compiler options so I wanted to discuss it. I don't think there is a specific target I can currently use so I thought of adding one. Some suggested names I came up with: x86_64-none-baremetal x86_64-elf-none I don't have a strong preference but I couldnt find anything that really matched for an ELF kernel with no OS On a related note about compiler options, what could be done about options such as enabling/disabling certain instruction sets eg SSE or FP or other such lowlevel options etc? These wouldn't necessarily always be on or off for a given target but the programer may want the ability to fine tune for firmware and embedded etc. Is there anyway this can be accomplished without adding lots of compiler options? I understand not wanting to go the gcc route of having a large option list. Original PR: https://github.com/apple/swift/pull/1893 Experimental kernel: https://github.com/spevans/swift-project1 Thanks _______________________________________________ swift-dev mailing list swift-dev@swift.org https://lists.swift.org/mailman/listinfo/swift-dev
