Hi Joel, Please test LLVM 12.0.0-rc3 build. It should use correct linker by default.
https://github.com/llvm/llvm-project/releases/download/llvmorg-12.0.0-rc3/LLVM-12.0.0-rc3-woa64.exe Let us know if you find any problems with it. Regards, -- Maxim Kuvyrkov https://www.linaro.org > On Mar 4, 2021, at 7:59 PM, Maxim Kuvyrkov <maxim.kuvyr...@linaro.org> wrote: > >> On 4 Mar 2021, at 19:55, Maxim Kuvyrkov <maxim.kuvyr...@linaro.org> wrote: >> >> Hi Joel, >> >> Indeed, LLD is not configured to be used by default in LLVM-12.0.0-rc1. You >> need to add -fuse-ld=lld option for it to work. We’ll fix this in the final >> LLVM-12 release for WoA, which is expected in around 2 weeks. >> >> Thanks for catching this! >> >> c:\Users\tcwg\source\maxim>..\llvm-12.0.0-rc1\bin\clang-cl.exe hello.c >> clang-cl: error: unable to execute command: Couldn't execute program >> 'C:\BuildTools\VC\Tools\MSVC\14.28.29333\bin\Hostx64\arm64\link.exe': >> Unknown error (0xD8) >> clang-cl: error: linker command failed with exit code 1 (use -v to see >> invocation) > > I also should note that I configure MSVC environment with > > C:\BuildTools\Common7\Tools\VsDevCmd.bat -host_arch=x86 -arch=arm64 > … and it’s unclear why it is trying to use x86_64 MSVC linker instead of > x86_32 version. Of course, LLD should be the one actually used with Clang, > but this may indicate a bug in MSVC environment setup script. > > -- > Maxim Kuvyrkov > https://www.linaro.org > >> >> c:\Users\tcwg\source\maxim>..\llvm-12.0.0-rc1\bin\clang-cl.exe -fuse-ld=lld >> hello.c >> >> c:\Users\tcwg\source\maxim>hello.exe >> Hello >> >> c:\Users\tcwg\source\maxim>..\llvm-12.0.0-rc1\bin\clang.exe -fuse-ld=lld >> hello.c >> >> c:\Users\tcwg\source\maxim>hello.exe >> Hello >> >> -- >> Maxim Kuvyrkov >> https://www.linaro.org >> >>> On 4 Mar 2021, at 19:43, Joel Cox <joel....@arm.com> wrote: >>> >>> Hi >>> >>> I was trying "clang hello.c" from command line, but "clang-cl hello.c" >>> gives me the same error. I am unsure if this is what you mean but neither >>> work. >>> >>> Thanks, >>> Joel >>> >>> -----Original Message----- >>> From: Maxim Kuvyrkov <maxim.kuvyr...@linaro.org> >>> Sent: 04 March 2021 16:40 >>> To: Joel Cox <joel....@arm.com> >>> Cc: linaro-toolchain@lists.linaro.org >>> Subject: Re: Clang targetting x64 linker >>> >>> Hi Joel, >>> >>> Are you using clang-cl.exe as compiler/linker driver? It’s easiest to use >>> clang-cl.exe as it aims to be a direct replacement for MSVC’s cl.exe, but >>> will use LLVM tools. In particular, when clang-cl.exe uses LLVM Linker >>> (LLD) by default. >>> >>> If you are using linux-style clang.exe as the driver, then you need to >>> specify -fuse-ld=lld to use LLD. >>> >>> Does this help? >>> >>> Regards, >>> >>> -- >>> Maxim Kuvyrkov >>> https://www.linaro.org >>> >>>> On 4 Mar 2021, at 19:11, Joel Cox <joel....@arm.com> wrote: >>>> >>>> Hi >>>> >>>> I've been trying to run clang on a Windows on Arm machine, but it keeps >>>> trying to using the link.exe located in "Visual studio/..../Host64/arm64", >>>> which is (seemingly) an x64 tool and as such doesn't run, and crashes the >>>> process. >>>> Is there a way to set clang to look at VS's x86 link.exe? Or if there is >>>> an arm64 version that clang should be using instead? >>>> >>>> Thanks, >>>> Joel >>>> IMPORTANT NOTICE: The contents of this email and any attachments are >>>> confidential and may also be privileged. If you are not the intended >>>> recipient, please notify the sender immediately and do not disclose the >>>> contents to any other person, use it for any purpose, or store or copy the >>>> information in any medium. Thank you. >>>> _______________________________________________ >>>> linaro-toolchain mailing list >>>> linaro-toolchain@lists.linaro.org >>>> https://lists.linaro.org/mailman/listinfo/linaro-toolchain >>> >>> IMPORTANT NOTICE: The contents of this email and any attachments are >>> confidential and may also be privileged. If you are not the intended >>> recipient, please notify the sender immediately and do not disclose the >>> contents to any other person, use it for any purpose, or store or copy the >>> information in any medium. Thank you. _______________________________________________ linaro-toolchain mailing list linaro-toolchain@lists.linaro.org https://lists.linaro.org/mailman/listinfo/linaro-toolchain
