# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (C) 2009-2016 Stephan Raue (stephan@openelec.tv)
# Copyright (C) 2018-present Team LibreELEC (https://libreelec.tv)

PKG_NAME="llvm"
PKG_VERSION="14.0.5"
PKG_SHA256="c9d27903ba3883c476a83cd515e36e1e07b0585db55692835de11385d9e3c8fa"
PKG_LICENSE="Apache-2.0"
PKG_SITE="http://llvm.org/"
PKG_URL="https://github.com/llvm/llvm-project/releases/download/llvmorg-${PKG_VERSION}/llvm-project-${PKG_VERSION}.src.tar.xz"
PKG_DEPENDS_HOST="toolchain:host"
PKG_DEPENDS_TARGET="toolchain llvm:host zlib"
PKG_LONGDESC="Low-Level Virtual Machine (LLVM) is a compiler infrastructure."
PKG_TOOLCHAIN="cmake"

PKG_CMAKE_OPTS_COMMON="-DLLVM_INCLUDE_TOOLS=ON \
                       -DLLVM_BUILD_TOOLS=OFF \
                       -DLLVM_BUILD_UTILS=OFF \
                       -DLLVM_BUILD_EXAMPLES=OFF \
                       -DLLVM_INCLUDE_EXAMPLES=OFF \
                       -DLLVM_BUILD_TESTS=OFF \
                       -DLLVM_INCLUDE_TESTS=OFF \
                       -DLLVM_INCLUDE_GO_TESTS=OFF \
                       -DLLVM_BUILD_BENCHMARKS=OFF \
                       -DLLVM_INCLUDE_BENCHMARKS=OFF \
                       -DLLVM_BUILD_DOCS=OFF \
                       -DLLVM_INCLUDE_DOCS=OFF \
                       -DLLVM_ENABLE_DOXYGEN=OFF \
                       -DLLVM_ENABLE_SPHINX=OFF \
                       -DLLVM_ENABLE_OCAMLDOC=OFF \
                       -DLLVM_ENABLE_BINDINGS=OFF \
                       -DLLVM_ENABLE_TERMINFO=OFF \
                       -DLLVM_ENABLE_ASSERTIONS=OFF \
                       -DLLVM_ENABLE_WERROR=OFF \
                       -DLLVM_ENABLE_ZLIB=OFF \
                       -DLLVM_ENABLE_LIBXML2=OFF \
                       -DLLVM_BUILD_LLVM_DYLIB=ON \
                       -DLLVM_LINK_LLVM_DYLIB=ON \
                       -DLLVM_OPTIMIZED_TABLEGEN=ON \
                       -DLLVM_APPEND_VC_REV=OFF \
                       -DLLVM_ENABLE_RTTI=ON \
                       -DLLVM_ENABLE_UNWIND_TABLES=OFF \
                       -DLLVM_ENABLE_Z3_SOLVER=OFF \
                       -DCMAKE_SKIP_RPATH=ON"

pre_configure() {
  PKG_CMAKE_SCRIPT=${PKG_BUILD}/llvm/CMakeLists.txt
}

pre_configure_host() {
  case "${TARGET_ARCH}" in
    "arm")
      LLVM_BUILD_TARGETS="X86\;ARM"
      ;;
    "aarch64")
      LLVM_BUILD_TARGETS="X86\;AArch64"
      ;;
    "x86_64")
      LLVM_BUILD_TARGETS="X86\;AMDGPU"
      ;;
  esac

  mkdir -p ${PKG_BUILD}/.${HOST_NAME}
  cd ${PKG_BUILD}/.${HOST_NAME}
  PKG_CMAKE_OPTS_HOST="${PKG_CMAKE_OPTS_COMMON} \
                       -DCMAKE_BINARY_DIR=${PKG_BUILD}/.${HOST_NAME} \
                       -DLLVM_NATIVE_BUILD=${PKG_BUILD}/.${HOST_NAME}/native \
                       -DLLVM_ENABLE_PROJECTS='clang' \
                       -DCLANG_LINK_CLANG_DYLIB=ON \
                       -DLLVM_TARGETS_TO_BUILD=${LLVM_BUILD_TARGETS}"
}

post_make_host() {
  ninja ${NINJA_OPTS} llvm-config llvm-tblgen
}

post_makeinstall_host() {
  mkdir -p ${TOOLCHAIN}/bin
    cp -a bin/llvm-config ${TOOLCHAIN}/bin
    cp -a bin/llvm-tblgen ${TOOLCHAIN}/bin
}

pre_configure_target() {
  mkdir -p ${PKG_BUILD}/.${TARGET_NAME}
  cd ${PKG_BUILD}/.${TARGET_NAME}
  PKG_CMAKE_OPTS_TARGET="${PKG_CMAKE_OPTS_COMMON} \
                         -DCMAKE_BINARY_DIR=${PKG_BUILD}/.${TARGET_NAME} \
                         -DLLVM_NATIVE_BUILD=${PKG_BUILD}/.${TARGET_NAME}/native \
                         -DCMAKE_CROSSCOMPILING=ON \
                         -DLLVM_ENABLE_PROJECTS='' \
                         -DLLVM_TARGETS_TO_BUILD=AMDGPU \
                         -DLLVM_TARGET_ARCH="${TARGET_ARCH}" \
                         -DLLVM_TABLEGEN=${TOOLCHAIN}/bin/llvm-tblgen"
}

post_makeinstall_target() {
  mkdir -p ${SYSROOT_PREFIX}/usr/bin
    cp -a ${TOOLCHAIN}/bin/llvm-config ${SYSROOT_PREFIX}/usr/bin

  rm -rf ${INSTALL}/usr/bin
  rm -rf ${INSTALL}/usr/lib/LLVMHello.so
  rm -rf ${INSTALL}/usr/lib/libLTO.so
  rm -rf ${INSTALL}/usr/share
}