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Add smoke test from dotnet#113 
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‎src/tests/nativeaot/SmokeTests/SharedLibrary/CMakeLists.txt‎

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project (SharedLibrary)
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include_directories(${INC_PLATFORM_DIR})
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add_executable (SharedLibrary SharedLibrary.cpp)
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if (CLR_CMAKE_TARGET_UNIX)
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target_link_libraries (SharedLibrary ${CMAKE_DL_LIBS})
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endif()
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# add the install targets
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install (TARGETS PInvokeNative DESTINATION bin)

‎src/tests/nativeaot/SmokeTests/SharedLibrary/SharedLibrary.cpp‎

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// Licensed to the .NET Foundation under one or more agreements.
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// The .NET Foundation licenses this file to you under the MIT license.
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#ifdef TARGET_WINDOWS
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#include "windows.h"
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#else
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#include "dlfcn.h"
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#endif
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#include "stdio.h"
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#include "string.h"
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#ifndef TARGET_WINDOWS
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#define __stdcall
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#endif
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// typedef for shared lib exported methods
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typedef int(__stdcall *f_ReturnsPrimitiveInt)();
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typedef bool(__stdcall *f_ReturnsPrimitiveBool)();
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typedef char(__stdcall *f_ReturnsPrimitiveChar)();
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typedef void(__stdcall *f_EnsureManagedClassLoaders)();
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#ifdef TARGET_WINDOWS
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int main()
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#else
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int main(int argc, char* argv[])
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#endif
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{
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#ifdef TARGET_WINDOWS
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HINSTANCE handle = LoadLibrary("SharedLibrary.dll");
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#elif __APPLE__
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void *handle = dlopen(strcat(argv[0], ".dylib"), RTLD_LAZY);
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#else
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void *handle = dlopen(strcat(argv[0], ".so"), RTLD_LAZY);
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#endif
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if (!handle)
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return 1;
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#ifdef TARGET_WINDOWS
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f_ReturnsPrimitiveInt returnsPrimitiveInt = (f_ReturnsPrimitiveInt)GetProcAddress(handle, "ReturnsPrimitiveInt");
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f_ReturnsPrimitiveBool returnsPrimitiveBool = (f_ReturnsPrimitiveBool)GetProcAddress(handle, "ReturnsPrimitiveBool");
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f_ReturnsPrimitiveChar returnsPrimitiveChar = (f_ReturnsPrimitiveChar)GetProcAddress(handle, "ReturnsPrimitiveChar");
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f_EnsureManagedClassLoaders ensureManagedClassLoaders = (f_EnsureManagedClassLoaders)GetProcAddress(handle, "EnsureManagedClassLoaders");
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f_ReturnsPrimitiveInt checkSimpleGCCollect = (f_ReturnsPrimitiveInt)GetProcAddress(handle, "CheckSimpleGCCollect");
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f_ReturnsPrimitiveInt checkSimpleExceptionHandling = (f_ReturnsPrimitiveInt)GetProcAddress(handle, "CheckSimpleExceptionHandling");
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#else
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f_ReturnsPrimitiveInt returnsPrimitiveInt = (f_ReturnsPrimitiveInt)dlsym(handle, "ReturnsPrimitiveInt");
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f_ReturnsPrimitiveBool returnsPrimitiveBool = (f_ReturnsPrimitiveBool)dlsym(handle, "ReturnsPrimitiveBool");
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f_ReturnsPrimitiveChar returnsPrimitiveChar = (f_ReturnsPrimitiveChar)dlsym(handle, "ReturnsPrimitiveChar");
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f_EnsureManagedClassLoaders ensureManagedClassLoaders = (f_EnsureManagedClassLoaders)dlsym(handle, "EnsureManagedClassLoaders");
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f_ReturnsPrimitiveInt checkSimpleGCCollect = (f_ReturnsPrimitiveInt)dlsym(handle, "CheckSimpleGCCollect");
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f_ReturnsPrimitiveInt checkSimpleExceptionHandling = (f_ReturnsPrimitiveInt)dlsym(handle, "CheckSimpleExceptionHandling");
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#endif
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if (returnsPrimitiveInt() != 10)
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return 1;
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if (!returnsPrimitiveBool())
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return 2;
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if (returnsPrimitiveChar() != 'a')
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return 3;
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// As long as no unmanaged exception is thrown
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// managed class loaders were initialized successfully
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ensureManagedClassLoaders();
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if (checkSimpleGCCollect() != 100)
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return 4;
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if (checkSimpleExceptionHandling() != 100)
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return 5;
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// CoreRT is not designed to be unloadable, so this won't actually unload the library properly. Verify that attempt
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// to unload the library does not to crash at least.
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#ifdef TARGET_WINDOWS
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FreeLibrary(handle);
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#else
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// TODO: How to pin the library in memory on Unix?
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// dlclose(handle);
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#endif
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return 100;
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}

‎src/tests/nativeaot/SmokeTests/SharedLibrary/SharedLibrary.cs‎

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// Licensed to the .NET Foundation under one or more agreements.
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// The .NET Foundation licenses this file to you under the MIT license.
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using System;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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namespace SharedLibrary
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{
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public class ClassLibrary
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{
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[UnmanagedCallersOnly(EntryPoint = "ReturnsPrimitiveInt", CallConvs = new Type[] { typeof(CallConvStdcall) })]
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public static int ReturnsPrimitiveInt()
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{
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return 10;
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}
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[UnmanagedCallersOnly(EntryPoint = "ReturnsPrimitiveBool", CallConvs = new Type[] { typeof(CallConvStdcall) })]
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public static bool ReturnsPrimitiveBool()
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{
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return true;
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}
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[UnmanagedCallersOnly(EntryPoint = "ReturnsPrimitiveChar", CallConvs = new Type[] { typeof(CallConvStdcall) })]
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public static char ReturnsPrimitiveChar()
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{
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return 'a';
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}
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[UnmanagedCallersOnly(EntryPoint = "EnsureManagedClassLoaders", CallConvs = new Type[] { typeof(CallConvStdcall) })]
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public static void EnsureManagedClassLoaders()
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{
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Random random = new Random();
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random.Next();
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}
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[UnmanagedCallersOnly(EntryPoint = "CheckSimpleExceptionHandling", CallConvs = new Type[] { typeof(CallConvStdcall) })]
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public static int CheckSimpleExceptionHandling()
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{
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int result = 10;
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try
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{
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Console.WriteLine("Throwing exception");
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throw new Exception();
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}
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catch when (result == 10)
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{
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result += 20;
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}
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finally
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{
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result += 70;
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}
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return result;
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}
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private static bool s_collected;
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class ClassWithFinalizer
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{
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~ClassWithFinalizer() { s_collected = true; }
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}
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[MethodImpl(MethodImplOptions.NoInlining)]
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private static void MakeGarbage()
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{
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GC.Collect();
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GC.WaitForPendingFinalizers();
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GC.Collect();
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object[] arr = new object[1024 * 1024];
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for (int i = 0; i < arr.Length; i++)
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arr[i] = new object();
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new ClassWithFinalizer();
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}
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[UnmanagedCallersOnly(EntryPoint = "CheckSimpleGCCollect", CallConvs = new Type[] { typeof(CallConvStdcall) })]
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public static int CheckSimpleGCCollect()
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{
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string myString = string.Format("Hello {0}", "world");
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MakeGarbage();
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Console.WriteLine("Triggering GC");
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GC.Collect();
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GC.WaitForPendingFinalizers();
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GC.Collect();
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return s_collected ? (myString == "Hello world" ? 100 : 1) : 2;
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}
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}
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}

‎src/tests/nativeaot/SmokeTests/SharedLibrary/SharedLibrary.csproj‎

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<OutputType>Library</OutputType>
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<CLRTestKind>BuildAndRun</CLRTestKind>
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<CLRTestPriority>0</CLRTestPriority>
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<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
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</PropertyGroup>
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<PropertyGroup>
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<NativeAotProjectLines>
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<![CDATA[
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<PropertyGroup>
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<OutputType>Library</OutputType>
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<NativeLib>Shared</NativeLib>
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</PropertyGroup>
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]]>
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</NativeAotProjectLines>
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<CLRTestBatchPreCommands><![CDATA[
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$(CLRTestBatchPreCommands)
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mkdir native 2>nul
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copy /y SharedLibrary.exe native\SharedLibrary.exe
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]]></CLRTestBatchPreCommands>
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<BashCLRTestPreCommands><![CDATA[
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$(BashCLRTestPreCommands)
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mkdir -p native
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cp SharedLibrary native/SharedLibrary
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]]></BashCLRTestPreCommands>
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</PropertyGroup>
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<ItemGroup>
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<Compile Include="SharedLibrary.cs" />
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</ItemGroup>
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<ItemGroup>
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<ProjectReference Include="CMakeLists.txt" />
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</ItemGroup>
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</Project>

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