> 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
