llvm-msvc is a compiler based on LLVM that isn't limited by MSVC. The aim is to provide the same experience as MSVC on Windows. You can use naked functions anywhere and also add custom support like obfuscation.
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- Compatible with
MSVCsyntax as much as possible. - Improved
SEHstability. - Added some special Intrinsic functions(
__vmx_vmread/__vmx_write). - Supports
x64/ARM64windows drivers. - Supports
AArch64android GKI drivers. - Allows naked
X64inline asm. - Enables multiple cores compilation.
- Supports
/MPwhen precompiled headers are present. - Supports
/GL(LTO optimization).
Clangfollows theGCCstandard, whileMSVChas its own unique syntax.- Some of the code is pretty hacky. Can't submit it officially.
- Waiting for the official fix takes too long.
- Install Visual Studio 2015-2022 (I recommend using 2022) along with WDK11.
- Download and install llvm-msvc from the following repository llvm-msvc_X86_64_installer-PDB.exe.
- Create your Windows driver project and choose "LLVM-MSVC_v143_KernelMode" as your platform toolset.
- Compile your project.
X86+ARM64：clang+lld+lldb+debug
cmake -Bbuild -A X64 -DLLDB_ENABLE_PYTHON=OFF -DLLVM_ENABLE_PROJECTS="clang;lld;lldb" -DCMAKE_INSTALL_PREFIX=E:\llvm\install-debug-64 -DLLVM_TARGETS_TO_BUILD="X86;AArch64" -DCMAKE_BUILD_TYPE=Debug llvm
msbuild /m -p:Configuration=Debug INSTALL.vcxproj
--------------------------------------------------
X86+ARM64：clang+lld+lldb+RelWithDebInfo
mkdir build2
pushd build2
cmake .. -G "Visual Studio 17 2022" -A X64 -DLLVM_ENABLE_RPMALLOC=ON -DCMAKE_CXX_FLAGS="/utf-8" -DCMAKE_C_FLAGS="/utf-8" -DLLVM_ENABLE_PACK_PDB=ON -DLLDB_ENABLE_PYTHON=OFF -DLLVM_ENABLE_PROJECTS="clang;lld;lldb" -DCMAKE_INSTALL_PREFIX=E:\llvm\install-RelWithDebInfo-64 -DLLVM_ENABLE_LIBXML2=OFF -DLLVM_ENABLE_ZLIB=OFF -DLLVM_TARGETS_TO_BUILD="X86;AArch64" -DCMAKE_BUILD_TYPE=RelWithDebInfo -DLLVM_USE_CRT_RELEASE=MT ../llvm
msbuild /m -p:Configuration=RelWithDebInfo INSTALL.vcxproj
--------------------------------------------------
X86+ARM64：clang+lld+lldb+release
mkdir build3
pushd build3
cmake .. -G "Visual Studio 17 2022" -A X64 -DLLVM_ENABLE_RPMALLOC=ON -DCMAKE_CXX_FLAGS="/utf-8" -DCMAKE_C_FLAGS="/utf-8" -DLLDB_ENABLE_PYTHON=OFF -DLLVM_ENABLE_PROJECTS="clang;lld;lldb" -DCMAKE_INSTALL_PREFIX=E:\llvm\install-release-64 -DLLVM_ENABLE_LIBXML2=OFF -DLLVM_ENABLE_ZLIB=OFF -DLLVM_TARGETS_TO_BUILD="X86;AArch64" -DCMAKE_BUILD_TYPE=release -DLLVM_USE_CRT_RELEASE=MT ../llvm
msbuild /m -p:Configuration=release INSTALL.vcxproj
- https://github.com/HyunCafe/contribute-practice
- https://docs.github.com/en/get-started/quickstart/contributing-to-projects
If you don't know how to learn LLVM, you can check out this repository of mine.
Yes.
Yes.
LLVM- Some anonymous people