path: root/PKGBUILD

# Maintainer: Grigory Vasilyev <echo "h0tc0d3(-*A*-)g-m*a-i-l(-d#t-)c#m" | sed -e 's/-//ig;s/*//ig;s/(A)/@/i;s/#/o/ig;s/(dot)/./i'>

validpgpkeys=('33ED753E14757D79FA17E57DC4C1F715B2B66B95')

pkgname=llvm12-git
pkgdesc="LLVM 12 Toolchain with clang, clang-tools-extra, compiler-rt, openmp, polly, lldb, lld"
pkgver=12.0.1_rc1.23.gadae17728bad
pkgrel=1
arch=('x86_64')
url="https://llvm.org/"
license=('custom:Apache 2.0 with LLVM Exception')

provides=('llvm' 'llvm-libs' 'llvm-ocaml' 'clang' 'clang=12.0.0' 'clang-analyzer' 'clang-tools-extra' 'openmp' 'polly' 'compiler-rt' 'lld' 'lldb')
replaces=('llvm' 'llvm-libs' 'llvm-ocaml' 'clang' 'clang-analyzer' 'clang-tools-extra' 'openmp' 'polly' 'compiler-rt' 'lld' 'lldb')
conflicts=('llvm' 'llvm-libs' 'llvm-ocaml' 'clang' 'clang-analyzer' 'clang-tools-extra' 'openmp' 'polly' 'compiler-rt' 'lld' 'lldb' 'llvm-git' 'llvm-libs-git' 'llvm-ocaml-git')

_ocaml_ver=4.11.1
makedepends=('git' 'ninja' 'cmake' 'libffi' 'libedit' 'ncurses' 'libxml2'
  "ocaml>=$_ocaml_ver" 'ocaml-ctypes' 'ocaml-findlib'
  'python-setuptools' 'python-psutil' 'python-sphinx'
  'python-recommonmark')

_gitbranch="release/12.x"
source=(
  "llvm-project::git+https://github.com/llvm/llvm-project.git#branch=${_gitbranch}"
  'llvm-config.h'
  '001-add-fno-semantic-interposition.patch'
  '002-llvm-link-with-Bsymbolic-functions.patch'
  '003-clang-link-with-Bsymbolic-functions.patch'
  '004-enable-SSP-and-PIE-by-default.patch'
)

sha256sums=('SKIP'
  '597dc5968c695bbdbb0eac9e8eb5117fcd2773bc91edf5ec103ecffffab8bc48'
  'fc8c64267a5d179e9fc24fb2bc6150edef2598c83f5b2d138d14e05ce9f4e345'
  '560ce1e206c19f4b86f4c583b743db0ad47a610418999350710aafd60ae50fcd'
  '5bc0b47c70990bb8dd0cf4138a8ab9e15cf6b008b7c0cf2c7aac3736b559e0e6'
  'a877fa5cf1c1cca3bd55f9a36cf8c1bdd061ff398aeace90fe3cbd9e82550da3')
sha512sums=('SKIP'
  '75e743dea28b280943b3cc7f8bbb871b57d110a7f2b9da2e6845c1c36bf170dd883fca54e463f5f49e0c3effe07fbd0db0f8cf5a12a2469d3f792af21a73fcdd'
  'b823ebb76d4adc82cb894518bf0336c48f42bc99bb98752714c46eea4b13226e9e8a7c980acf97151dff714c11f8d7c1837358d6aa1338d3f3e12b73658a89c2'
  'de7097c578ab7b47182f68adf76bc2d41db57326cdfa98aff7dc1253cbe313afde65937f2419ef04bc997e12db67816960e8c75bebda524d930d9af816dd9f83'
  '9f4c8e0a6065fa271666ccb7e40633f913447c63ff6d508083aa7e6c77e7365eb921157c49c499d8d96ed733f822460bf62225ec10ce2fb2100b8fc54146389e'
  'a1254c1fe9533d71d88d173ceee74e206cf22aa65f90d32cba61d2c14299c4842add5e21aa16649a61e1044a4bd040522fbeb1130e00de5ded081029df6bc39b')
options=('staticlibs')

_extra_build_flags=""
_build_documentation=0
_build_tests=0
_build_bindings=0

pkgver() {

  cd "${srcdir:?}/llvm-project" || (
    echo -e "\E[1;31mCan't cd to ${srcdir}/llvm-project build directory! PkgVer Failed! \E[0m"
    exit 1
  )

  _gitdesc=$(git describe --long --tags)
  if [[ "${_gitdesc}" =~ "rc" ]]; then
    _gitdesc=$(echo "${_gitdesc}" | cut -f3-5 -d- | tr '-' '.')
  else
    _gitdesc="r$(echo "${_gitdesc}" | cut -f3-4 -d- | tr '-' '.')"
  fi

  echo "$(
    sed -nE "/LLVM_VERSION_MAJOR/{:a;N;/LLVM_VERSION_SUFFIX/Ta};0,/LLVM_VERSION_MAJOR/D;p" \
      llvm/CMakeLists.txt |
      grep -oP "\d+" |
      xargs | tr ' ' '.'
  )_${_gitdesc}"

}

prepare() {

  cd "${srcdir:?}/llvm-project" || (
    echo -e "\E[1;31mCan't cd to ${srcdir}/llvm-project build directory! Prepare Failed! \E[0m"
    exit 1
  )

  patch --forward --strip=1 --input="${srcdir:?}/001-add-fno-semantic-interposition.patch"
  patch --forward --strip=1 --input="${srcdir:?}/002-llvm-link-with-Bsymbolic-functions.patch"
  patch --forward --strip=1 --input="${srcdir:?}/003-clang-link-with-Bsymbolic-functions.patch"
  patch --forward --strip=1 --input="${srcdir:?}/004-enable-SSP-and-PIE-by-default.patch"

}

build() {

  cd "${srcdir:?}/llvm-project" || (
    echo -e "\E[1;31mCan't cd to ${srcdir}/llvm-project build directory! Build Failed! \E[0m"
    exit 1
  )

  local yn=0
  while true; do
    echo -ne "\n\E[1;33mBuild with clang and llvm toolchain? [Y/n] \E[0m"
    read -r yn
    case ${yn} in
    [Yy] | "")
      if clang --version 2>/dev/null | grep -iq "clang\s*version\s*[0-9]"; then
        export CC=clang
        export CXX=clang++
        export AR=llvm-ar
        export NM=llvm-nm
        export STRIP=llvm-strip
        export OBJCOPY=llvm-objcopy
        export OBJDUMP=llvm-objdump
        export READELF=llvm-readelf
        export HOSTCC=clang
        export HOSTCXX=clang++
        export HOSTAR=llvm-ar
        export DEBUG_CFLAGS="-g"
        export DEBUG_CXXFLAGS="-g"
      else
        echo -e "\E[1;31mClang not found. Will use default system compiler! \E[0m"
      fi

      if ld.lld --version 2>/dev/null | grep -iq "LLD\s*[0-9]"; then
        export LD=ld.lld
        export CC_LD=lld
        export CXX_LD=lld
        export HOSTLD=ld.lld
        _extra_build_flags="-DLLVM_USE_LINKER=lld"
      fi

      break
      ;;
    [Nn]) break ;;
    *) echo -e "\E[1;31mPlease answer Y or N! \E[0m" ;;
    esac
  done

  while true; do
    echo -ne "\n\E[1;33mSkip build tests? [Y/n] \E[0m"
    read -r yn
    case ${yn} in
    [Yy] | "")
      _build_tests=0
      _extra_build_flags="${_extra_build_flags} -DLLVM_BUILD_TESTS=OFF"
      break
      ;;
    [Nn])
      _build_tests=1
      _extra_build_flags="${_extra_build_flags} -DLLVM_BUILD_TESTS=ON"
      break
      ;;
    *) echo -e "\E[1;31mPlease answer Y or N! \E[0m" ;;
    esac
  done

  while true; do
    echo -ne "\n\E[1;33mSkip build documentation? [Y/n] \E[0m"
    read -r yn
    case ${yn} in
    [Yy] | "")
      _build_documentation=0
      _extra_build_flags="${_extra_build_flags} -DLLVM_BUILD_DOCS=OFF"
      break
      ;;
    [Nn])
      _build_documentation=1
      _extra_build_flags="${_extra_build_flags} -DLLVM_BUILD_DOCS=ON -DLLVM_ENABLE_SPHINX=ON -DLLVM_ENABLE_DOXYGEN=OFF -DSPHINX_WARNINGS_AS_ERRORS=OFF"
      break
      ;;
    *) echo -e "\E[1;31mPlease answer Y or N! \E[0m" ;;
    esac
  done

  while true; do
    echo -ne "\n\E[1;33mSkip build OCaml and Go bindings? [Y/n] \E[0m"
    read -r yn
    case ${yn} in
    [Yy] | "")
      _build_bindings=0
      _extra_build_flags="${_extra_build_flags} -DLLVM_ENABLE_BINDINGS=OFF"
      break
      ;;
    [Nn])
      _build_bindings=1
      break
      ;;
    *) echo -e "\E[1;31mPlease answer Y or N! \E[0m" ;;
    esac
  done

  cmake -S llvm -B build -G Ninja \
    -DCMAKE_BUILD_TYPE=Release \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DLLVM_BINUTILS_INCDIR=/usr/include \
    -DLLVM_HOST_TRIPLE="${CHOST}" \
    -DLLVM_BUILD_LLVM_DYLIB=ON \
    -DLLVM_LINK_LLVM_DYLIB=ON \
    -DLLVM_INSTALL_UTILS=ON \
    -DLLVM_ENABLE_RTTI=ON \
    -DLLVM_ENABLE_FFI=ON \
    -DLLVM_ENABLE_PROJECTS="polly;lldb;lld;compiler-rt;openmp;clang-tools-extra;clang" \
    -DCLANG_LINK_CLANG_DYLIB=ON \
    -DLLDB_USE_SYSTEM_SIX=1 \
    -DLIBOMP_INSTALL_ALIASES=OFF \
    -DPOLLY_ENABLE_GPGPU_CODEGEN=ON \
    ${_extra_build_flags} \
    -Wno-dev

  ninja -C build ${NINJAFLAGS}

  if [[ _build_documentation -eq 1 && _build_bindings -ne 0 ]]; then
    ninja -C build ${NINJAFLAGS} ocaml_doc
  fi

}

check() {

  cd "${srcdir:?}/llvm-project" || (
    echo -e "\E[1;31mCan't cd to ${srcdir}/llvm-project/build build directory! Check Failed! \E[0m"
    exit 1
  )

  if [[ _build_tests -eq 1 ]]; then
    ninja -C build ${NINJAFLAGS} check-llvm
    ninja -C build ${NINJAFLAGS} check-clang
    ninja -C build ${NINJAFLAGS} check-clang-tools
    ninja -C build ${NINJAFLAGS} check-openmp
    ninja -C build ${NINJAFLAGS} check-polly
    ninja -C build ${NINJAFLAGS} check-lldb
    ninja -C build ${NINJAFLAGS} check-lld
  fi

}

_python2_optimize() {
  python2 -m compileall "$@"
  python2 -O -m compileall "$@"
}

_python3_optimize() {
  python3 -m compileall "$@"
  python3 -O -m compileall "$@"
  python3 -OO -m compileall "$@"
}

package() {

  cd "${srcdir:?}/llvm-project" || (
    echo -e "\E[1;31mCan't cd to ${srcdir}/llvm-project build directory! Package Failed! \E[0m"
    exit 1
  )

  if [[ _build_documentation -eq 0 ]]; then
    mkdir -p "${srcdir:?}/llvm-project/build/docs/ocamldoc/html/"
  fi

  DESTDIR="${pkgdir:?}" ninja -C build ${NINJAFLAGS} install

  pushd llvm/utils/lit || (
    echo -e "\E[1;31mpushd utils/lit - Package Failed! \E[0m"
    exit 1
  )

  python3 setup.py install --root="${pkgdir:?}" -O1
  popd || (
    echo -e "\E[1;31mpopd - Package Failed!  \E[0m"
    exit 1
  )

  if [[ $CARCH == x86_64 ]]; then
    mv "${pkgdir:?}/usr/include/llvm/Config/llvm-config"{,-64}.h
    cp "${srcdir:?}/llvm-config.h" "${pkgdir:?}/usr/include/llvm/Config/llvm-config.h"
  fi

  # Symlink LLVMgold.so from /usr/lib/bfd-plugins
  # https://bugs.archlinux.org/task/28479
  mkdir -p "${pkgdir:?}/usr/lib/bfd-plugins"
  ln -s ../LLVMgold.so "${pkgdir:?}/usr/lib/bfd-plugins/LLVMgold.so"

  # Clang
  mv "${pkgdir:?}"/usr/libexec/{ccc,c++}-analyzer "${pkgdir:?}/usr/lib/clang/"
  rm -fr "${pkgdir:?}/usr/libexec"
  sed -i 's|libexec|lib/clang|' "${pkgdir:?}/usr/bin/scan-build"

  # Python bindings
  for _py in 2.7 3.9; do
    install -d "${pkgdir:?}/usr/lib/python${_py}/site-packages"
    cp -a llvm/bindings/python/llvm "${pkgdir:?}/usr/lib/python${_py}/site-packages/"
    cp -a clang/bindings/python/clang "${pkgdir:?}/usr/lib/python${_py}/site-packages/"
    _python${_py%%.*}_optimize "${pkgdir:?}/usr/lib/python${_py}"
  done

  sed -i '1s|/usr/bin/env python$|&2|' \
    "${pkgdir:?}/usr/share/clang/run-find-all-symbols.py"
  touch -d @"${SOURCE_DATE_EPOCH}" "${pkgdir:?}/usr/share/clang/run-find-all-symbols.py"

  _python2_optimize "${pkgdir:?}/usr/share/clang"
  _python3_optimize "${pkgdir:?}/usr/share" -x 'clang-include-fixer|run-find-all-symbols'

  # Remove html documentation
  if [[ _build_documentation -eq 0 ]]; then
    rm -fr "${pkgdir:?}/usr/share/doc"
  fi

  # Licenses
  install -Dm644 "${srcdir:?}/llvm-project/llvm/LICENSE.TXT" "${pkgdir:?}/usr/share/licenses/${pkgname}/llvm-LICENSE"
  install -Dm644 "${srcdir:?}/llvm-project/clang/LICENSE.TXT" "${pkgdir:?}/usr/share/licenses/${pkgname}/clang-LICENSE"
  install -Dm644 "${srcdir:?}/llvm-project/clang-tools-extra/LICENSE.TXT" "${pkgdir:?}/usr/share/licenses/${pkgname}/clang-tools-extra-LICENSE"
  install -Dm644 "${srcdir:?}/llvm-project/compiler-rt/LICENSE.TXT" "${pkgdir:?}/usr/share/licenses/${pkgname}/compiler-rt-LICENSE"
  install -Dm644 "${srcdir:?}/llvm-project/lld/LICENSE.TXT" "${pkgdir:?}/usr/share/licenses/${pkgname}/lld-LICENSE"
  install -Dm644 "${srcdir:?}/llvm-project/lldb/LICENSE.TXT" "${pkgdir:?}/usr/share/licenses/${pkgname}/lldb-LICENSE"
  install -Dm644 "${srcdir:?}/llvm-project/polly/LICENSE.txt" "${pkgdir:?}/usr/share/licenses/${pkgname}/polly-LICENSE"
  install -Dm644 "${srcdir:?}/llvm-project/openmp/LICENSE.txt" "${pkgdir:?}/usr/share/licenses/${pkgname}/openmp-LICENSE"

}