Norbert Lange
47355937ad
add an option --host-clang which will skip building llvm, and instead provide symlinks and wrappers for clang and llvm tools. Currently the clang version is detected, but it does not affect the llvm version that will be downloaded and used.
192 lines
6.6 KiB
Bash
Executable File
192 lines
6.6 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2018 Martin Storsjo
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#
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# Permission to use, copy, modify, and/or distribute this software for any
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# purpose with or without fee is hereby granted, provided that the above
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# copyright notice and this permission notice appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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set -e
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unset HOST
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unset HOST_CLANG
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while [ $# -gt 0 ]; do
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case "$1" in
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--host-clang|--host-clang=*)
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HOST_CLANG=${1#--host-clang}
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HOST_CLANG=${HOST_CLANG#=}
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HOST_CLANG=${HOST_CLANG:-clang}
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;;
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--host=*)
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HOST="${1#*=}"
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;;
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*)
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PREFIX="$1"
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;;
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esac
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shift
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done
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if [ -z "$PREFIX" ]; then
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echo $0 [--host=triple] [--host-clang[=clang]] dest
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exit 1
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fi
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mkdir -p "$PREFIX"
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PREFIX="$(cd "$PREFIX" && pwd)"
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: ${ARCHS:=${TOOLCHAIN_ARCHS-i686 x86_64 armv7 aarch64}}
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: ${TARGET_OSES:=${TOOLCHAIN_TARGET_OSES-mingw32 mingw32uwp}}
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if [ -n "$HOST" ] && [ -z "$CC" ]; then
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CC=$HOST-gcc
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fi
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: ${CC:=cc}
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if [ -n "$HOST" ]; then
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case $HOST in
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*-mingw32)
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EXEEXT=.exe
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;;
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esac
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else
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case $(uname) in
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MINGW*)
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EXEEXT=.exe
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;;
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esac
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fi
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if [ -n "${HOST_CLANG}" ]; then
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HOST_CLANG_EXE=$(command -v $HOST_CLANG)
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HOST_CLANG_VER=$(echo "__clang_major__ __clang_minor__ __clang_patchlevel__" | $HOST_CLANG_EXE -E -P -x c - | xargs printf '%d.%d.%d')
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mkdir -p $PREFIX/bin
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# ex. /usr/lib/llvm-17/lib/clang/17
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resdir=$($HOST_CLANG -print-resource-dir)
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# ex. /usr/lib/llvm-17
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llvmdir=${resdir%/lib/clang/*}
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# ex /lib/clang/17
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clangres=${resdir#$llvmdir}
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mkdir -p $PREFIX$clangres
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# link the header directory, prevent modification
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ln -snf $resdir/include $PREFIX$clangres/include
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# Note: clang will detect the "InstalledDir" based on the path that was used to invoke the tools
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# This might still have some hidden effects
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printf '#!/bin/sh\nsr=$(dirname "$(dirname "$(readlink -f "$0")")")\nexec %s -resource-dir="$sr"%s --sysroot="$sr" "$@"\n' "$HOST_CLANG_EXE" "$clangres" > $PREFIX/bin/clang
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# printf '#!/bin/sh\nsr=$(dirname "$(dirname "$(readlink -f "$0")")")\nexec %s -resource-dir="$sr"%s --sysroot="$sr" "$@"\n' "$(readlink -f "$HOST_CLANG_EXE")" "$clangres" > $PREFIX/bin/clang
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chmod 755 $PREFIX/bin/clang
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ln -sf clang $PREFIX/bin/clang++
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ln -sf clang $PREFIX/bin/clang-cpp
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echo "Using existing clang $HOST_CLANG_EXE ($HOST_CLANG_VER)"
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$PREFIX/bin/clang -v
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# prefer system llvm installation, but search in llvm private paths (eg. debian does not symlink all tools into /usr/bin)
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llvmexec="$PATH:$llvmdir/bin"
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for exec in ld.lld llvm-ar llvm-ranlib llvm-nm llvm-objcopy llvm-strip llvm-rc llvm-cvtres \
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llvm-addr2line llvm-dlltool llvm-readelf llvm-size llvm-strings llvm-addr2line llvm-windres llvm-ml; do
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execpath=$(PATH=$llvmexec command -v $exec) && ln -sf $execpath $PREFIX/bin/$exec
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done
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fi
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if [ -n "$MACOS_REDIST" ]; then
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: ${MACOS_REDIST_ARCHS:=arm64 x86_64}
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: ${MACOS_REDIST_VERSION:=10.9}
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for arch in $MACOS_REDIST_ARCHS; do
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WRAPPER_FLAGS="$WRAPPER_FLAGS -arch $arch"
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done
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WRAPPER_FLAGS="$WRAPPER_FLAGS -mmacosx-version-min=$MACOS_REDIST_VERSION"
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fi
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if [ -n "$EXEEXT" ]; then
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CLANG_MAJOR=$(basename $(echo $PREFIX/lib/clang/* | awk '{print $NF}') | cut -f 1 -d .)
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WRAPPER_FLAGS="$WRAPPER_FLAGS -municode -DCLANG=\"clang-$CLANG_MAJOR\""
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fi
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mkdir -p "$PREFIX/bin"
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cp wrappers/*-wrapper.sh "$PREFIX/bin"
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if [ -n "$HOST" ] && [ -n "$EXEEXT" ]; then
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# TODO: If building natively on msys, pick up the default HOST value from there.
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WRAPPER_FLAGS="$WRAPPER_FLAGS -DDEFAULT_TARGET=\"$HOST\""
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for i in wrappers/*-wrapper.sh; do
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cat $i | sed 's/^DEFAULT_TARGET=.*/DEFAULT_TARGET='$HOST/ > "$PREFIX/bin/$(basename $i)"
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done
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fi
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$CC wrappers/clang-target-wrapper.c -o "$PREFIX/bin/clang-target-wrapper$EXEEXT" -O2 -Wl,-s $WRAPPER_FLAGS
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$CC wrappers/llvm-wrapper.c -o "$PREFIX/bin/llvm-wrapper$EXEEXT" -O2 -Wl,-s $WRAPPER_FLAGS
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if [ -n "$EXEEXT" ]; then
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# For Windows, we should prefer the executable wrapper, which also works
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# when invoked from outside of MSYS.
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CTW_SUFFIX=$EXEEXT
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CTW_LINK_SUFFIX=$EXEEXT
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else
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CTW_SUFFIX=.sh
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fi
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cd "$PREFIX/bin"
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for arch in $ARCHS; do
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for target_os in $TARGET_OSES; do
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for exec in clang clang++ gcc g++ c++ as; do
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ln -sf clang-target-wrapper$CTW_SUFFIX $arch-w64-$target_os-$exec$CTW_LINK_SUFFIX
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done
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for exec in addr2line ar ranlib nm objcopy readelf size strings strip llvm-ar llvm-ranlib; do
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if [ -n "$EXEEXT" ]; then
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link_target=llvm-wrapper
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else
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case $exec in
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llvm-*)
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link_target=$exec
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;;
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*)
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link_target=llvm-$exec
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;;
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esac
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fi
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ln -sf $link_target$EXEEXT $arch-w64-$target_os-$exec$EXEEXT || true
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done
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# windres and dlltool can't use llvm-wrapper, as that loses the original
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# target arch prefix.
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ln -sf llvm-windres$EXEEXT $arch-w64-$target_os-windres$EXEEXT
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ln -sf llvm-dlltool$EXEEXT $arch-w64-$target_os-dlltool$EXEEXT
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for exec in ld objdump; do
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ln -sf $exec-wrapper.sh $arch-w64-$target_os-$exec
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done
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done
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done
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if [ -n "$EXEEXT" ]; then
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if [ ! -L clang$EXEEXT ] && [ -f clang$EXEEXT ] && [ ! -f clang-$CLANG_MAJOR$EXEEXT ]; then
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mv clang$EXEEXT clang-$CLANG_MAJOR$EXEEXT
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fi
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if [ -z "$HOST" ]; then
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HOST=$(./clang-$CLANG_MAJOR -dumpmachine | sed 's/-.*//')-w64-mingw32
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fi
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HOST_ARCH="${HOST%%-*}"
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# Install unprefixed wrappers if $HOST is one of the architectures
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# we are installing wrappers for.
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case $ARCHS in
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*$HOST_ARCH*)
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for exec in clang clang++ gcc g++ c++ addr2line ar dlltool ranlib nm objcopy readelf size strings strip windres; do
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ln -sf $HOST-$exec$EXEEXT $exec$EXEEXT
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done
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for exec in cc c99 c11; do
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ln -sf clang$EXEEXT $exec$EXEEXT
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done
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for exec in ld objdump; do
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ln -sf $HOST-$exec $exec
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done
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;;
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esac
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fi
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