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llvm-mingw/install-wrappers.sh
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Martin Storsjö 866d47cced wrappers: Pick up the Clang config file implicitly
Clang only picks up config files implicitly using the normalized
triple form, so use file names with "-windows-gnu" instead of
"-mingw32".

In theory, we could also want to pick up the config file implicitly
by having "<triple>-<mode>" be a symlink directly to the clang
executable. That works for regular mingw32 targets, but for the
mingw32uwp target, there's no distinction in the normalized
triple, so both would end up using the same "-windows-gnu" config
files. So as long as we want to support the mingw32uwp prefixed
tools, we need to use a wrapper.
2024-11-06 11:40:30 +02:00

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