Toolchain: Don't use GNU objcopy in the LLVM toolchain

Our build of LLVM's objcopy now supports the single missing feature
(--update-section) that previously forced us to use the one from GNU
Binutils. This means that there is no reason anymore to build Binutils
alongside LLVM's tools.

Toolchain/BuildClang.sh

@@ -14,7 +14,6 @@ ARCHS="$USERLAND_ARCHS aarch64"
 
 MD5SUM="md5sum"
 REALPATH="realpath"
-MAKE="make"
 NPROC="nproc"
 INSTALL="install"
 SED="sed"
@@ -24,18 +23,15 @@ SYSTEM_NAME="$(uname -s)"
 if [ "$SYSTEM_NAME" = "OpenBSD" ]; then
     MD5SUM="md5 -q"
     REALPATH="readlink -f"
-    MAKE="gmake"
     NPROC="sysctl -n hw.ncpuonline"
     export CC=egcc
     export CXX=eg++
     export LDFLAGS=-Wl,-z,notext
 elif [ "$SYSTEM_NAME" = "FreeBSD" ]; then
     MD5SUM="md5 -q"
-    MAKE="gmake"
     NPROC="sysctl -n hw.ncpu"
 elif [ "$SYSTEM_NAME" = "Darwin" ]; then
     MD5SUM="md5 -q"
-    MAKE="make"
     NPROC="sysctl -n hw.ncpu"
     REALPATH="grealpath"  # GNU coreutils
     INSTALL="ginstall"    # GNU coreutils
@@ -80,13 +76,6 @@ LLVM_NAME="llvm-project-$LLVM_VERSION.src"
 LLVM_PKG="$LLVM_NAME.tar.xz"
 LLVM_URL="https://github.com/llvm/llvm-project/releases/download/llvmorg-$LLVM_VERSION/$LLVM_PKG"
 
-# We need GNU binutils because we use a feature that llvm-objdump doesn't support yet.
-BINUTILS_VERSION="2.37"
-BINUTILS_MD5SUM="1e55743d73c100b7a0d67ffb32398cdb"
-BINUTILS_NAME="binutils-$BINUTILS_VERSION"
-BINUTILS_PKG="${BINUTILS_NAME}.tar.gz"
-BINUTILS_BASE_URL="https://ftp.gnu.org/gnu/binutils"
-
 buildstep() {
     NAME=$1
     shift
@@ -106,9 +95,9 @@ buildstep_ninja() {
 
 # === DEPENDENCIES ===
 
-buildstep dependencies echo "Checking whether 'make' is available..."
-if ! command -v ${MAKE:-make} >/dev/null; then
-    buildstep dependencies echo "Please make sure to install GNU Make (for the '${MAKE:-make}' tool)."
+buildstep dependencies echo "Checking whether Ninja is available..."
+if ! command -v ninja >/dev/null; then
+    buildstep dependencies echo "Please make sure to install Ninja."
     exit 1
 fi
 
@@ -216,39 +205,6 @@ pushd "$DIR/Tarballs"
         fi
         $MD5SUM "$DIR/Patches/llvm.patch" "$DIR/Patches/llvm-backport-objcopy-update-section.patch" > .patch.applied
     popd
-
-    md5=""
-    if [ -e "$BINUTILS_PKG" ]; then
-        md5="$($MD5SUM $BINUTILS_PKG | cut -f1 -d' ')"
-        echo "bu md5='$md5'"
-    fi
-
-    if [ "$md5" != "$BINUTILS_MD5SUM" ]; then
-        rm -f "$BINUTILS_PKG"
-        curl -LO "$BINUTILS_BASE_URL/$BINUTILS_PKG"
-    else
-        echo "Skipped downloading GNU binutils"
-    fi
-
-    if [ -d "$BINUTILS_NAME" ]; then
-        rm -rf "$BINUTILS_NAME"
-        rm -rf "$DIR/Build/clang/binutils"
-    fi
-    echo "Extracting GNU binutils"
-
-
-    tar -xzf "$BINUTILS_PKG"
-    pushd "$BINUTILS_NAME"
-        if [ "$dev" = "1" ]; then
-            git init > /dev/null
-            git add . > /dev/null
-            git commit -am "BASE" > /dev/null
-            git apply "$DIR"/Patches/binutils.patch > /dev/null
-        else
-            patch -p1 < "$DIR/Patches/binutils.patch" > /dev/null
-        fi
-         $MD5SUM "$DIR/Patches/binutils.patch" > .patch.applied
-    popd
 popd
 
 # === COPY HEADERS ===
@@ -307,21 +263,6 @@ pushd "$DIR/Build/clang"
         buildstep "llvm/install" ninja install/strip
     popd
 
-    mkdir -p binutils
-    pushd binutils
-        buildstep "binutils/configure" "$DIR/Tarballs/$BINUTILS_NAME/configure" --prefix="$PREFIX" \
-            --enable-targets="$(echo "$ARCHS" | "$SED" -E "s@(\S)(\s|$)@\1-pc-serenity,@g")" \
-            --program-prefix="gnu-" \
-            --disable-nls \
-            --disable-gas \
-            --disable-gold \
-            --disable-ld \
-            --disable-gprof \
-            --enable-shared
-        buildstep "binutils/build" "$MAKE" -j "$MAKEJOBS"
-        buildstep "binutils/install" "$MAKE" install
-    popd
-
     for arch in $ARCHS; do
         mkdir -p runtimes/"$arch"
         pushd runtimes/"$arch"

Toolchain/BuildIt.sh

@@ -71,7 +71,6 @@ echo SYSROOT is "$SYSROOT"
 
 mkdir -p "$DIR/Tarballs"
 
-# Note: The version number and hash in BuildClang.sh needs to be kept in sync with this.
 BINUTILS_VERSION="2.37"
 BINUTILS_MD5SUM="1e55743d73c100b7a0d67ffb32398cdb"
 BINUTILS_NAME="binutils-$BINUTILS_VERSION"

Toolchain/CMake/ClangToolchain.txt.in

@@ -25,8 +25,7 @@ set(CMAKE_RANLIB ${TOOLCHAIN_PATH}/llvm-ranlib)
 set(CMAKE_STRIP ${TOOLCHAIN_PATH}/llvm-strip)
 set(CMAKE_AR ${TOOLCHAIN_PATH}/llvm-ar)
 set(SERENITY_CXXFILT ${TOOLCHAIN_PATH}/llvm-cxxfilt)
-# FIXME: Persuade LLVM maintainers to add `--update-section` to llvm-objcopy, as it's required for the kernel symbol map.
-set(CMAKE_OBJCOPY ${TOOLCHAIN_PATH}/gnu-objcopy)
+set(CMAKE_OBJCOPY ${TOOLCHAIN_PATH}/llvm-objcopy)
 
 set(CMAKE_EXE_LINKER_FLAGS_INIT "-Wl,--hash-style=gnu,-z,relro,-z,now,-z,noexecstack,-z,max-page-size=0x1000,-z,separate-code")