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|
{ lib
, stdenv
, cmake
, ninja
, circt
, llvm
, python3
}: stdenv.mkDerivation {
pname = circt.pname + "-llvm";
inherit (circt) version src;
requiredSystemFeatures = [ "big-parallel" ];
nativeBuildInputs = [ cmake ninja python3 ];
preConfigure = ''
cd llvm/llvm
'';
cmakeFlags = [
"-DBUILD_SHARED_LIBS=ON"
"-DLLVM_ENABLE_BINDINGS=OFF"
"-DLLVM_ENABLE_OCAMLDOC=OFF"
"-DLLVM_BUILD_EXAMPLES=OFF"
"-DLLVM_OPTIMIZED_TABLEGEN=ON"
"-DLLVM_ENABLE_PROJECTS=mlir"
"-DLLVM_TARGETS_TO_BUILD=Native"
# This option is needed to install llvm-config
"-DLLVM_INSTALL_UTILS=ON"
];
outputs = [ "out" "lib" "dev" ];
# Get rid of ${extra_libdir} (which ends up containing a path to circt-llvm.dev
# in circt) so that we only have to remove the one fixed rpath.
postPatch = lib.optionalString stdenv.hostPlatform.isDarwin ''
substituteInPlace llvm/llvm/cmake/modules/AddLLVM.cmake \
--replace-fail 'set(_install_rpath "@loader_path/../lib''${LLVM_LIBDIR_SUFFIX}" ''${extra_libdir})' \
'set(_install_rpath "@loader_path/../lib''${LLVM_LIBDIR_SUFFIX}")'
'';
postInstall = ''
# move llvm-config to $dev to resolve a circular dependency
moveToOutput "bin/llvm-config*" "$dev"
# move all lib files to $lib except lib/cmake
moveToOutput "lib" "$lib"
moveToOutput "lib/cmake" "$dev"
# patch configuration files so each path points to the new $lib or $dev paths
substituteInPlace "$dev/lib/cmake/llvm/LLVMConfig.cmake" \
--replace 'set(LLVM_BINARY_DIR "''${LLVM_INSTALL_PREFIX}")' 'set(LLVM_BINARY_DIR "'"$lib"'")'
substituteInPlace \
"$dev/lib/cmake/llvm/LLVMExports-release.cmake" \
"$dev/lib/cmake/mlir/MLIRTargets-release.cmake" \
--replace "\''${_IMPORT_PREFIX}/lib/lib" "$lib/lib/lib" \
--replace "\''${_IMPORT_PREFIX}/lib/objects-Release" "$lib/lib/objects-Release" \
--replace "$out/bin/llvm-config" "$dev/bin/llvm-config" # patch path for llvm-config
'';
# Replace all references to @rpath with absolute paths and remove the rpaths.
#
# This is different from what the regular LLVM package does, which is to make
# everything absolute from the start: however, that doesn't work for us because
# we have `-DBUILD_SHARED_LIBS=ON`, meaning that many more things are
# dynamically rather than statically linked. This includes TableGen, which then
# fails to run halfway through the build because it tries to reference $lib when
# it hasn't been populated yet.
#
# Inspired by fixDarwinDylibNames.
postFixup = lib.optionalString stdenv.hostPlatform.isDarwin ''
local flags=(-delete_rpath @loader_path/../lib)
for file in "$lib"/lib/*.dylib; do
flags+=(-change @rpath/"$(basename "$file")" "$file")
done
for file in "$out"/bin/* "$lib"/lib/*.dylib; do
if [ -L "$file" ]; then continue; fi
echo "$file: fixing dylib references"
# note that -id does nothing on binaries
install_name_tool -id "$file" "''${flags[@]}" "$file"
done
'';
# circt only use the mlir part of llvm, occasionally there are some unrelated failure from llvm,
# disable the llvm check, but keep the circt check enabled.
doCheck = false;
checkTarget = "check-mlir";
meta = llvm.meta // {
inherit (circt.meta) maintainers;
};
}
|
