[llvm-dev] Ld64.lld cannot find Foundation framework (original) (raw)

James Y Knight via llvm-dev llvm-dev at lists.llvm.org
Thu May 7 04:26:19 PDT 2020

The MachO port of lld (ld64.lld) doesn't work. There is recently some activity to start to fix this situation, but for now you need to use Apple's linker.

On Thu, May 7, 2020, 5:36 AM Edmund Furse via llvm-dev < llvm-dev at lists.llvm.org> wrote:

Dear LLVM community I need some help please.

I want to use LLVM's clang and lld within a MacOSX sandboxed app. This is because sandboxing does not allow calls to /usr/bin/clang. The clang binary works fine to compile a file, but ld64.lld comes up with the error "cannot find framework". However similar arguments using /usr/bin/ld instead of ld64.lld works fine. Here are the details: Here is the call using /usr/bin/ld: /usr/bin/ld HelloObjC.o -o HelloObjC -v -sdkversion 10.14.0 -macosxversionmin 10.14.0 -demangle -ltolibrary /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/libLTO.dylib -dynamic -arch x8664 -framework Foundation -framework Cocoa -syslibroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk -lSystem /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/10.0.1/lib/darwin/libclangrt.osx.a -F/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk This works correctly. Here is the call using ld64.lld: /Users/edmundfurse/Documents/NewClang/NewClangM21b/NewClangM21/Tools/bin/ld64.lld HelloObjC.o -o HelloObjC -v -sdkversion 10.14.0 -macosxversionmin 10.14.0 -demangle -ltolibrary /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/libLTO.dylib -dynamic -arch x8664 -framework Foundation -framework Cocoa -syslibroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk -L/usr/local/lib -lSystem /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/clang/10.0.1/lib/darwin/libclangrt.osx.a -F/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk gives the error message: Library search paths: /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk/usr/lib Framework search paths: /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.sdk/System/Library/Frameworks ld64.lld: error: Unable to find framework for -framework Foundation Any suggestions welcome.

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