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https://github.com/RGBCube/serenity
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Toolchain: Enable -fexceptions and build a separate libstdc++ for the kernel
This enables building usermode programs with exception handling. It also builds a libstdc++ without exception support for the kernel. This is necessary because the libstdc++ that gets built is different when exceptions are enabled. Using the same library binary would require extensive stubs for exception-related functionality in the kernel.
This commit is contained in:
Gunnar Beutner
Andreas Kling
parent
ebca6aabc0
commit
d7978a3317
4 changed files with 121 additions and 55 deletions
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@ -75,7 +75,6 @@ GCC_NAME="gcc-$GCC_VERSION"
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GCC_PKG="${GCC_NAME}.tar.gz"
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GCC_BASE_URL="http://ftp.gnu.org/gnu/gcc"
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# === CHECK CACHE AND REUSE ===
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pushd "$DIR"
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@ -189,17 +188,21 @@ popd
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# === COMPILE AND INSTALL ===
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rm -rf "$PREFIX"
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mkdir -p "$PREFIX"
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mkdir -p "$DIR/Build/$ARCH/binutils"
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mkdir -p "$DIR/Build/$ARCH/gcc"
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if [ -z "$MAKEJOBS" ]; then
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MAKEJOBS=$($NPROC)
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fi
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mkdir -p "$DIR/Build/$ARCH"
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pushd "$DIR/Build/$ARCH"
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unset PKG_CONFIG_LIBDIR # Just in case
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rm -rf binutils
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mkdir -p binutils
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pushd binutils
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echo "XXX configure binutils"
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"$DIR"/Tarballs/$BINUTILS_NAME/configure --prefix="$PREFIX" \
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@ -222,55 +225,85 @@ pushd "$DIR/Build/$ARCH"
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"$MAKE" install || exit 1
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popd
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pushd gcc
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if [ "$(uname -s)" = "OpenBSD" ]; then
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perl -pi -e 's/-no-pie/-nopie/g' "$DIR/Tarballs/gcc-$GCC_VERSION/gcc/configure"
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fi
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echo "XXX serenity libc and libm headers"
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mkdir -p "$BUILD"
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pushd "$BUILD"
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mkdir -p Root/usr/include/
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SRC_ROOT=$($REALPATH "$DIR"/..)
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FILES=$(find "$SRC_ROOT"/Userland/Libraries/LibC "$SRC_ROOT"/Userland/Libraries/LibM -name '*.h' -print)
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for header in $FILES; do
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target=$(echo "$header" | sed -e "s@$SRC_ROOT/Userland/Libraries/LibC@@" -e "s@$SRC_ROOT/Userland/Libraries/LibM@@")
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$INSTALL -D "$header" "Root/usr/include/$target"
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done
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unset SRC_ROOT
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popd
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echo "XXX configure gcc and libgcc"
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"$DIR/Tarballs/gcc-$GCC_VERSION/configure" --prefix="$PREFIX" \
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--target="$TARGET" \
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--with-sysroot="$SYSROOT" \
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--disable-nls \
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--with-newlib \
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--enable-shared \
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--enable-languages=c,c++ \
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--enable-default-pie \
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--enable-lto \
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${TRY_USE_LOCAL_TOOLCHAIN:+"--quiet"} || exit 1
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if [ "$(uname -s)" = "OpenBSD" ]; then
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perl -pi -e 's/-no-pie/-nopie/g' "$DIR/Tarballs/gcc-$GCC_VERSION/gcc/configure"
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fi
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echo "XXX serenity libc and libm headers"
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mkdir -p "$BUILD"
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pushd "$BUILD"
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mkdir -p Root/usr/include/
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SRC_ROOT=$($REALPATH "$DIR"/..)
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FILES=$(find "$SRC_ROOT"/Userland/Libraries/LibC "$SRC_ROOT"/Userland/Libraries/LibM -name '*.h' -print)
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for header in $FILES; do
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target=$(echo "$header" | sed -e "s@$SRC_ROOT/Userland/Libraries/LibC@@" -e "s@$SRC_ROOT/Userland/Libraries/LibM@@")
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$INSTALL -D "$header" "Root/usr/include/$target"
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done
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unset SRC_ROOT
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if [ ! -f $DIR/Tarballs/gcc-$GCC_VERSION/gcc/config/serenity-userland.h ]; then
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cp $DIR/Tarballs/gcc-$GCC_VERSION/gcc/config/serenity.h $DIR/Tarballs/gcc-$GCC_VERSION/gcc/config/serenity-kernel.h
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fi
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for STAGE in Userland Kernel; do
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rm -rf gcc
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mkdir -p gcc
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pushd gcc
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TEMPTARGET="$BUILD/Temp"
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rm -rf "$TEMPTARGET"
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echo "XXX configure gcc and libgcc"
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if [ "$STAGE" = "Userland" ]; then
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REALTARGET="$PREFIX"
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else
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REALTARGET="$PREFIX/Kernel"
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fi
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cp $DIR/Tarballs/gcc-$GCC_VERSION/gcc/config/serenity-kernel.h $DIR/Tarballs/gcc-$GCC_VERSION/gcc/config/serenity.h
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if [ "$STAGE" = "Userland" ]; then
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sed -i 's@-fno-exceptions @@' $DIR/Tarballs/gcc-$GCC_VERSION/gcc/config/serenity.h
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fi
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"$DIR/Tarballs/gcc-$GCC_VERSION/configure" --prefix="$PREFIX" \
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--target="$TARGET" \
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--with-sysroot="$SYSROOT" \
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--disable-nls \
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--with-newlib \
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--enable-shared \
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--enable-languages=c,c++ \
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--enable-default-pie \
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--enable-lto \
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${TRY_USE_LOCAL_TOOLCHAIN:+"--quiet"} || exit 1
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if [ "$STAGE" = "Userland" ]; then
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echo "XXX build gcc and libgcc"
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"$MAKE" -j "$MAKEJOBS" all-gcc || exit 1
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if [ "$(uname -s)" = "OpenBSD" ]; then
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ln -sf liblto_plugin.so.0.0 gcc/liblto_plugin.so
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fi
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"$MAKE" -j "$MAKEJOBS" all-target-libgcc || exit 1
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echo "XXX install gcc and libgcc"
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"$MAKE" DESTDIR=$TEMPTARGET install-gcc install-target-libgcc || exit 1
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fi
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echo "XXX build libstdc++"
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"$MAKE" -j "$MAKEJOBS" all-target-libstdc++-v3 || exit 1
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echo "XXX install libstdc++"
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"$MAKE" DESTDIR=$TEMPTARGET install-target-libstdc++-v3 || exit 1
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mkdir -p "$REALTARGET"
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cp -a $TEMPTARGET/$PREFIX/* "$REALTARGET/"
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rm -rf "$TEMPTARGET"
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popd
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echo "XXX build gcc and libgcc"
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"$MAKE" -j "$MAKEJOBS" all-gcc || exit 1
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if [ "$(uname -s)" = "OpenBSD" ]; then
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ln -sf liblto_plugin.so.0.0 gcc/liblto_plugin.so
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if [ "$STAGE" = "Userland" ]; then
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if [ "$(uname -s)" = "OpenBSD" ]; then
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cd "$DIR/Local/${ARCH}/libexec/gcc/$TARGET/$GCC_VERSION" && ln -sf liblto_plugin.so.0.0 liblto_plugin.so
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fi
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fi
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"$MAKE" -j "$MAKEJOBS" all-target-libgcc || exit 1
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echo "XXX install gcc and libgcc"
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"$MAKE" install-gcc install-target-libgcc || exit 1
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echo "XXX build libstdc++"
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"$MAKE" -j "$MAKEJOBS" all-target-libstdc++-v3 || exit 1
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echo "XXX install libstdc++"
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"$MAKE" install-target-libstdc++-v3 || exit 1
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if [ "$(uname -s)" = "OpenBSD" ]; then
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cd "$DIR/Local/${ARCH}/libexec/gcc/$TARGET/$GCC_VERSION" && ln -sf liblto_plugin.so.0.0 liblto_plugin.so
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fi
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popd
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done
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popd
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