build-compiler-rt.sh 2.6 KB
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#!/bin/sh

set -e

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SRC_DIR=../lib/builtins
BUILD_SUFFIX=

while [ $# -gt 0 ]; do
    if [ "$1" = "--build-sanitizers" ]; then
        SRC_DIR=..
        BUILD_SUFFIX=-sanitizers
        SANITIZERS=1
    else
        PREFIX="$1"
    fi
    shift
done
if [ -z "$PREFIX" ]; then
    echo $0 [--build-sanitizers] dest
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    exit 1
fi
export PATH=$PREFIX/bin:$PATH

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: ${CORES:=$(nproc 2>/dev/null)}
: ${CORES:=$(sysctl -n hw.ncpu 2>/dev/null)}
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: ${CORES:=4}
: ${ARCHS:=${TOOLCHAIN_ARCHS-i686 x86_64 armv7 aarch64}}

CLANG_VERSION=$(basename $(dirname $(dirname $(dirname $($PREFIX/bin/clang --print-libgcc-file-name -rtlib=compiler-rt)))))

if [ ! -d compiler-rt ]; then
    git clone -b master https://github.com/llvm-mirror/compiler-rt.git
    CHECKOUT=1
fi

# Add a symlink for i386 -> i686; we normally name the toolchain
# i686-w64-mingw32, but due to the compiler-rt cmake peculiarities, we
# need to refer to it as i386 at this stage.
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ln -sfn i686-w64-mingw32 $PREFIX/i386-w64-mingw32 || true
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cd compiler-rt

if [ -n "$SYNC" ] || [ -n "$CHECKOUT" ]; then
    [ -z "$SYNC" ] || git fetch
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    git checkout 0492c25c247e31fe23570fe0cf6e9801301ab069
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fi

for arch in $ARCHS; do
    buildarchname=$arch
    libarchname=$arch
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    if [ -n "$SANITIZERS" ]; then
        case $arch in
        i686|x86_64)
            # Sanitizers on windows only support x86.
            ;;
        *)
            continue
            ;;
        esac
    fi
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    case $arch in
    armv7)
        libarchname=arm
        ;;
    i686)
        buildarchname=i386
        libarchname=i386
        ;;
    esac
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    mkdir -p build-$arch$BUILD_SUFFIX
    cd build-$arch$BUILD_SUFFIX
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    cmake \
        -DCMAKE_BUILD_TYPE=Release \
        -DCMAKE_C_COMPILER=$arch-w64-mingw32-clang \
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        -DCMAKE_CXX_COMPILER=$arch-w64-mingw32-clang++ \
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        -DCMAKE_SYSTEM_NAME=Windows \
        -DCMAKE_AR=$PREFIX/bin/llvm-ar \
        -DCMAKE_RANLIB=$PREFIX/bin/llvm-ranlib \
        -DCMAKE_C_COMPILER_WORKS=1 \
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        -DCMAKE_CXX_COMPILER_WORKS=1 \
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        -DCMAKE_C_COMPILER_TARGET=$buildarchname-windows-gnu \
        -DCOMPILER_RT_DEFAULT_TARGET_ONLY=TRUE \
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        -DCOMPILER_RT_USE_BUILTINS_LIBRARY=TRUE \
        $SRC_DIR
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    make -j$CORES
    mkdir -p $PREFIX/lib/clang/$CLANG_VERSION/lib/windows
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    mkdir -p $PREFIX/$arch-w64-mingw32/bin
    for i in lib/windows/libclang_rt.*-$buildarchname*.a; do
        cp $i $PREFIX/lib/clang/$CLANG_VERSION/lib/windows/$(basename $i | sed s/$buildarchname/$libarchname/)
    done
    for i in lib/windows/libclang_rt.*-$buildarchname*.dll; do
        if [ -f $i ]; then
            cp $i $PREFIX/$arch-w64-mingw32/bin
        fi
    done
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    cd ..
done