mirror of
https://github.com/lifting-bits/remill
synced 2026-06-21 13:56:07 +00:00
Duncan Ogilvie
64 lines
2.3 KiB
CMake
64 lines
2.3 KiB
CMake
option(LLVM_ENABLE_ASSERTIONS "Enable assertions in LLVM" ON)
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# Default values for LLVM_URL and LLVM_SHA256. This is required because "-DLLVM_URL=" would be an empty URL
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if("${LLVM_URL}" STREQUAL "")
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set(LLVM_URL "https://github.com/llvm/llvm-project/releases/download/llvmorg-17.0.6/llvm-project-17.0.6.src.tar.xz")
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endif()
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if("${LLVM_SHA256}" STREQUAL "")
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set(LLVM_SHA256 "58a8818c60e6627064f312dbf46c02d9949956558340938b71cf731ad8bc0813")
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endif()
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set(LLVM_ARGS
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"-DLLVM_ENABLE_PROJECTS:STRING=lld;clang;clang-tools-extra"
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"-DLLVM_ENABLE_ASSERTIONS:STRING=${LLVM_ENABLE_ASSERTIONS}"
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"-DLLVM_ENABLE_DUMP:STRING=${LLVM_ENABLE_ASSERTIONS}"
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"-DLLVM_ENABLE_RTTI:STRING=ON"
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"-DLLVM_ENABLE_LIBEDIT:STRING=OFF"
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"-DLLVM_PARALLEL_LINK_JOBS:STRING=1"
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"-DLLVM_ENABLE_DIA_SDK:STRING=OFF"
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# This is meant for LLVM development, we use the DYLIB option instead
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"-DBUILD_SHARED_LIBS:STRING=OFF"
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"-DLLVM_LINK_LLVM_DYLIB:STRING=${BUILD_SHARED_LIBS}"
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)
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# LLVM has a bug on Windows where using clang.exe as the compiler fails to detect
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# the host target triple, so we have to specify it manually.
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# Reference: https://github.com/lifting-bits/remill/issues/735#issuecomment-3590986077
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if(WIN32)
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if(CMAKE_CXX_COMPILER_ID MATCHES "Clang" AND NOT CMAKE_CXX_COMPILER_FRONTEND_VARIANT MATCHES "^MSVC$")
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message(WARNING
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"Using clang.exe as the compiler on Windows is not well supported.\n"
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"If you run into issues, use clang-cl instead:\n"
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" cmake -DCMAKE_C_COMPILER=clang-cl -DCMAKE_CXX_COMPILER=clang-cl ...\n"
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)
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if(CMAKE_SIZEOF_VOID_P EQUAL 8)
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if(CMAKE_SYSTEM_PROCESSOR MATCHES "^(ARM64|arm64|aarch64)$")
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set(LLVM_ARCH "aarch64")
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else()
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set(LLVM_ARCH "x86_64")
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endif()
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else()
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set(LLVM_ARCH "i686")
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endif()
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list(APPEND LLVM_ARGS "-DLLVM_HOST_TRIPLE:STRING=${LLVM_ARCH}-pc-windows-msvc")
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endif()
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endif()
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if(USE_SANITIZERS)
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list(APPEND LLVM_ARGS "-DLLVM_USE_SANITIZER:STRING=Address;Undefined")
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endif()
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ExternalProject_Add(llvm
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URL
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${LLVM_URL}
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URL_HASH
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"SHA256=${LLVM_SHA256}"
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CMAKE_CACHE_ARGS
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${CMAKE_ARGS}
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${LLVM_ARGS}
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CMAKE_GENERATOR
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"Ninja"
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SOURCE_SUBDIR
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"llvm"
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)
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