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`libTestPlugin.dylib` dynamic library was previously linking against `libLLVMSupport.a`, which is already linked into the Swift compiler binary. This caused multiple conflicting definitions of `LLVMSupport` lib symbols, leading to ODR violations. This issue has been addressed by linking against `libLLVMSupport` via `-hidden-lLLVMSupport` flag, ensuring `libLLVMSupport` symbols remain hidden within the plugin, preventing conflicts with those in the Swift compiler. Fixes: https://github.com/swiftlang/swift/issues/77771.
17 lines
847 B
Swift
17 lines
847 B
Swift
// REQUIRES: OS=macosx
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// RUN: %target-swift-frontend -load-pass-plugin=nonexistent.dylib %s -emit-ir -o /dev/null 2>&1 | %FileCheck -check-prefix=CHECK-UNABLE-LOAD %s
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// CHECK-UNABLE-LOAD: error: unable to load plugin 'nonexistent.dylib': 'Could not load library{{.*}}'
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// RUN: %empty-directory(%t)
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// RUN: %target-clangxx %S/Inputs/TestPlugin.cpp -std=c++17 -stdlib=libc++ \
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// RUN: -isysroot %sdk -I %llvm_src_root/include -I %llvm_obj_root/include -L %llvm_obj_root/lib \
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// RUN: -Wl,-hidden-lLLVMSupport -Wl,-undefined -Wl,dynamic_lookup -Wl,-flat_namespace \
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// RUN: -dynamiclib -o %t/libTestPlugin.dylib
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// RUN: %target-swift-frontend -load-pass-plugin=%t/libTestPlugin.dylib %s -emit-ir -o /dev/null 2>&1 | %swift-demangle | %FileCheck %s
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// CHECK: TestPlugin: main
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// CHECK: TestPlugin: null.empty() -> ()
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func empty() {}
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