libffi: added ARM64 support for Windows (#486)

*  libffi: added ARM64 support for Windows

    1. ported sysv.S to win64_armasm.S for armasm64 assembler
    2. added msvc_build folder for visual studio solution
    3. updated README.md for the same
    4. MSVC solution created with the changes, and below test suites are tested
       with test script written in python.

       libffi.bhaible
       libffi.call
    5. Basic functionality of above test suites are getting passed

Signed-off-by: ossdev07 <ossdev@puresoftware.com>

* Update README.md

1 files changed, 130 insertions, 0 deletions

diff --git a/msvc_build/aarch64/Ffi_staticLib.vcxproj b/msvc_build/aarch64/Ffi_staticLib.vcxproj
new file mode 100644
index 0000000..b9e90d6
--- /dev/null
+++ b/msvc_build/aarch64/Ffi_staticLib.vcxproj
@@ -0,0 +1,130 @@
+<?xml version="1.0" encoding="utf-8"?>

+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">

+  <ItemGroup Label="ProjectConfigurations">

+    <ProjectConfiguration Include="Debug|ARM64">

+      <Configuration>Debug</Configuration>

+      <Platform>ARM64</Platform>

+    </ProjectConfiguration>

+    <ProjectConfiguration Include="Release|ARM64">

+      <Configuration>Release</Configuration>

+      <Platform>ARM64</Platform>

+    </ProjectConfiguration>

+  </ItemGroup>

+  <PropertyGroup Label="Globals">

+    <VCProjectVersion>15.0</VCProjectVersion>

+    <ProjectGuid>{115502C0-BE05-4767-BF19-5C87D805FAD6}</ProjectGuid>

+    <Keyword>Win32Proj</Keyword>

+    <RootNamespace>FfistaticLib</RootNamespace>

+    <WindowsTargetPlatformVersion>10.0.17763.0</WindowsTargetPlatformVersion>

+    <ProjectName>Ffi_staticLib_arm64</ProjectName>

+  </PropertyGroup>

+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'" Label="Configuration">

+    <ConfigurationType>StaticLibrary</ConfigurationType>

+    <UseDebugLibraries>true</UseDebugLibraries>

+    <PlatformToolset>v141</PlatformToolset>

+    <CharacterSet>Unicode</CharacterSet>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'" Label="Configuration">

+    <ConfigurationType>StaticLibrary</ConfigurationType>

+    <UseDebugLibraries>false</UseDebugLibraries>

+    <PlatformToolset>v141</PlatformToolset>

+    <WholeProgramOptimization>true</WholeProgramOptimization>

+    <CharacterSet>Unicode</CharacterSet>

+  </PropertyGroup>

+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />

+  <ImportGroup Label="ExtensionSettings">

+  </ImportGroup>

+  <ImportGroup Label="Shared">

+  </ImportGroup>

+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'" Label="PropertySheets">

+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

+  </ImportGroup>

+  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'" Label="PropertySheets">

+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />

+  </ImportGroup>

+  <PropertyGroup Label="UserMacros" />

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'">

+    <LinkIncremental>true</LinkIncremental>

+  </PropertyGroup>

+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">

+    <LinkIncremental>false</LinkIncremental>

+  </PropertyGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'">

+    <ClCompile>

+      <PrecompiledHeader>NotUsing</PrecompiledHeader>

+      <WarningLevel>Level3</WarningLevel>

+      <Optimization>Disabled</Optimization>

+      <SDLCheck>true</SDLCheck>

+      <PreprocessorDefinitions>FFI_BUILDING_DLL;_DEBUG;_LIB;USE_DL_PREFIX;ARM64;_M_ARM64;NDEBUG;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <ConformanceMode>true</ConformanceMode>

+      <AdditionalIncludeDirectories>..\..\include;.\aarch64_include;..\..\src\aarch64;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <IgnoreStandardIncludePath>false</IgnoreStandardIncludePath>

+      <BrowseInformation>true</BrowseInformation>

+      <OmitFramePointers>

+      </OmitFramePointers>

+      <WholeProgramOptimization>false</WholeProgramOptimization>

+    </ClCompile>

+    <Link>

+      <SubSystem>Windows</SubSystem>

+      <GenerateDebugInformation>true</GenerateDebugInformation>

+    </Link>

+  </ItemDefinitionGroup>

+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">

+    <ClCompile>

+      <PrecompiledHeader>NotUsing</PrecompiledHeader>

+      <WarningLevel>Level3</WarningLevel>

+      <Optimization>MaxSpeed</Optimization>

+      <FunctionLevelLinking>true</FunctionLevelLinking>

+      <IntrinsicFunctions>true</IntrinsicFunctions>

+      <SDLCheck>true</SDLCheck>

+      <PreprocessorDefinitions>FFI_BUILDING_DLL;USE_DL_PREFIX;ARM64;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>

+      <ConformanceMode>true</ConformanceMode>

+      <AdditionalIncludeDirectories>..\..\include;.\aarch64_include;..\..\src\aarch64;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

+      <OmitFramePointers>true</OmitFramePointers>

+      <FavorSizeOrSpeed>Speed</FavorSizeOrSpeed>

+      <EnableFiberSafeOptimizations>true</EnableFiberSafeOptimizations>

+      <AdditionalUsingDirectories>..\..\src;..\..\src\aarch64;%(AdditionalUsingDirectories)</AdditionalUsingDirectories>

+    </ClCompile>

+    <Link>

+      <SubSystem>Windows</SubSystem>

+      <EnableCOMDATFolding>true</EnableCOMDATFolding>

+      <OptimizeReferences>true</OptimizeReferences>

+      <GenerateDebugInformation>true</GenerateDebugInformation>

+    </Link>

+    <ProjectReference>

+      <LinkLibraryDependencies>true</LinkLibraryDependencies>

+    </ProjectReference>

+  </ItemDefinitionGroup>

+  <ItemGroup>

+    <ClInclude Include=".\aarch64_include\ffi.h" />

+    <ClInclude Include=".\aarch64_include\fficonfig.h" />

+    <ClInclude Include="..\..\src\aarch64\ffitarget.h" />

+    <ClInclude Include="..\include\ffi_cfi.h" />

+    <ClInclude Include="..\include\ffi_common.h" />

+    <ClInclude Include="..\..\src\aarch64\internal.h" />

+  </ItemGroup>

+  <ItemGroup>

+    <ClCompile Include="..\..\src\closures.c" />

+    <ClCompile Include="..\..\src\dlmalloc.c" />

+    <ClCompile Include="..\..\src\aarch64\ffi.c" />

+    <ClCompile Include="..\..\src\prep_cif.c" />

+    <ClCompile Include="..\..\src\types.c" />

+  </ItemGroup>

+  <!--ItemGroup>

+    <Object Include="..\..\..\..\Downloads\libffi-master-win64\src\aarch64\win64_armasm.obj" />

+  </ItemGroup-->

+  <ItemGroup>

+    <CustomBuild Include="..\..\src\aarch64\win64_armasm.S">

+      <!--ExcludedFromBuild Condition="'$(Platform)'!='ARM64'">true</ExcludedFromBuild -->

+      <Command>

+        cl /FA /EP /nologo /I"..\..\include" /I".\aarch64_include" /I"..\..\src\aarch64" "%(FullPath)" &gt; $(IntDir)win64_armasm.i

+        armasm64 $(IntDir)win64_armasm.i /I"src\" /I"..\..\include" /I"..\..\src\aarch64" -o "$(IntDir)win64_armasm.obj"

+      </Command>

+      <Outputs>win64_armasm.obj;%(Outputs)</Outputs>

+    </CustomBuild>

+  </ItemGroup>

+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />

+  <ImportGroup Label="ExtensionTargets">

+  </ImportGroup>

+</Project>
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