> On Mar 22, 2016, at 9:52 AM, Vedant Kumar <[email protected]> wrote: > > + swift-dev, Argyrios > > >> On Mar 21, 2016, at 8:06 PM, Andrew Hyatt <[email protected]> wrote: >> >> swift-dev, >> >> 5e342aa fixed the CFLAGS issue for swift-llvm and it now compiles fine for >> iOS. >> >> A remnant of the issue persists while building Swift. To get to that point I >> copied over two headers not present in the iOS SDK (crt_externs.h and >> histedit.h). > > Andrew, which compiler invocations prompted you to copy these files over? > > >> While building swift, I get the following error: >> >> clang: error: invalid argument '-mmacosx-version-min=10.11' not allowed with >> '-miphoneos-version-min=7.0’ >> The arguments clang++ was launched with when the error occurred: >> >> https://gist.github.com/ahyattdev/f5084b1ee8b320f90961 > > It looks like some of the logic in SourceKit's build scripts is tripping up. > > Argyrios has done a lot of work on SourceKit, maybe he'll be able to spot the > issue.
I don’t think SourceKit cpp files do anything special with CMake, are you sure this only shows up for SourceKit files, is everything else building fine ? You could workaround by disabling building it with CMake variable, SWIFT_BUILD_SOURCEKIT=FALSE > > > vedant > >> Compiling LLVM works now, so maybe just one more change is needed to fix >> this build system issue for swift. >> >> Thanks you, Apple! >> >> Also, great job on the 2.2 release and good luck with 3.0. >> >> Andrew Hyatt >> [email protected] >> >>> On Mar 19, 2016, at 4:30 PM, Vedant Kumar <[email protected]> wrote: >>> >>> >>>> On Mar 19, 2016, at 12:05 PM, ChrisBieneman <[email protected]> wrote: >>>> >>>> [Adding Vedant directly] >>>> >>>> I'm not super familiar with the swift build scripts, but I have a theory >>>> of what is going wrong. I think the problem is that compiler-rt is being >>>> built during the cross build, and it really shouldn't be. >>>> >>>> The compiler-rt build system has some significant flaws, and it is being >>>> reworked to resolve them. The problem causing this is that we have a >>>> hacked up CMake build process that generates multiple cross-targeted >>>> binaries from a single build configuration. I believe that compiler-rt's >>>> built-in hacky cross-targeting is tripping over however swift is >>>> supporting cross-targeting, and it is falling over. >>>> >>>> With the current state of compiler-rt the right way to build it for Darwin >>>> is to treat it as host content, and it will build the Darwin-cross >>>> libraries too. Then you can pull the cross-libraries out and put them into >>>> the device build. >>> >>> Could you elaborate on what it means to treat it as host content? >>> >>> Is setting COMPILER_RT_HOST_TRIPLE and disabling >>> COMPILER_RT_ENABLE_{I,TV,WATCH}OS the right thing to do? >>> >>> >>>> Vedant, if you have questions feel free to swing by my office on Monday. >>> >>> Will do. >>> >>> >>> thanks, >>> vedant >>> >>>> -Chris >>>> >>>> On Mar 19, 2016, at 10:11 AM, Andrew Hyatt via swift-dev >>>> <[email protected]> wrote: >>>> >>>>> (From /u/thegreatbeanz on reddit.com/r/swift) >>>>> >>>>> So the problem here is actually that something has gone horribly wrong >>>>> when configuring compiler- rt. >>>>> You'll notice in the clang commands that it is building in this directory: >>>>> clang_rt.builtins_armv7_10.4.dir >>>>> What that means is it is building the clang_rt.10.4 archive which >>>>> provides back ported library functions to OS X 10.4. Obviously 10.4 >>>>> didn't support armv7 as an architecture, something has gone really wrong >>>>> here. >>>>> If you're on the latest swift it is probably a regression caused by >>>>> 53f48f8. You need to email swift-dev to get support from Dmitri Gribenko >>>>> and Vedant Kumar. >>>>> Source: I wrote most of the compiler-rt builtin build system for Darwin. >>>>> >>>>> Andrew Hyatt >>>>> [email protected] >>>>> >>>>>> On Mar 19, 2016, at 9:26 AM, Andrew Hyatt via swift-dev >>>>>> <[email protected]> wrote: >>>>>> >>>>>> Building swift-llvm fails when using build-script to cross compile >>>>>> because build-script wrongly gives duplicate -isysroot arguments. >>>>>> >>>>>> The full arguments that are given to clang by build-script while >>>>>> building LLVM are here: >>>>>> https://gist.github.com/ahyattdev/8ecc5d3808b9ee543a60 >>>>>> >>>>>> The command I use to build the compiler, using the latest sources from >>>>>> GitHub >>>>>> >>>>>> utils/build-script -R -i -- --cross-compile-tools-deployment-targets >>>>>> "iphoneos-arm64 iphoneos-armv7 iphoneos-armv7s" >>>>>> --user-config-args="-DLLVM_ENABLE_BACKTRACES=Off" >>>>>> >>>>>> This error occurs after the phase of building llvm for the host machine, >>>>>> and occurs during the cross compilation phase. >>>>>> >>>>>> Andrew Hyatt >>>>>> [email protected] >>>>>> >>>>>> _______________________________________________ >>>>>> swift-dev mailing list >>>>>> [email protected] >>>>>> https://lists.swift.org/mailman/listinfo/swift-dev >>>>> >>>>> _______________________________________________ >>>>> swift-dev mailing list >>>>> [email protected] >>>>> https://lists.swift.org/mailman/listinfo/swift-dev >>> >> > _______________________________________________ swift-dev mailing list [email protected] https://lists.swift.org/mailman/listinfo/swift-dev
