new file mode 100644
@@ -0,0 +1,18 @@
+FROM debian:10
+
+RUN apt update && \
+ DEBIAN_FRONTEND=noninteractive \
+ apt install -y --no-install-recommends \
+ ca-certificates build-essential cmake clang lld ninja-build \
+ flex bison pkg-config wget python3 rsync
+
+ENV TOOLCHAIN_INSTALL /usr
+ENV ROOTFS /usr
+
+ENV LLVM_URL https://github.com/llvm/llvm-project/archive/3d8149c2a1228609fd7d7c91a04681304a2f0ca9.tar.gz
+ENV MUSL_URL https://github.com/quic/musl/archive/aff74b395fbf59cd7e93b3691905aa1af6c0778c.tar.gz
+ENV LINUX_URL https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.6.18.tar.xz
+
+COPY debian-hexagon-cross.build-toolchain.sh /root/hexagon-toolchain/
+
+RUN cd /root/hexagon-toolchain/ && ./debian-hexagon-cross.build-toolchain.sh && cd / && rm -rf /root/hexagon-toolchain/
new file mode 100755
@@ -0,0 +1,141 @@
+#!/bin/bash
+
+set -e
+
+BASE=$(readlink -f ${PWD})
+
+TOOLCHAIN_INSTALL=$(readlink -f "$TOOLCHAIN_INSTALL")
+ROOTFS=$(readlink -f "$ROOTFS")
+
+TOOLCHAIN_BIN=${TOOLCHAIN_INSTALL}/bin
+HEX_SYSROOT=${TOOLCHAIN_INSTALL}/hexagon-unknown-linux-musl
+HEX_TOOLS_TARGET_BASE=${HEX_SYSROOT}/usr
+
+function cdp() {
+ DIR="$1"
+ mkdir -p "$DIR"
+ cd "$DIR"
+}
+
+function fetch() {
+ DIR="$1"
+ URL="$2"
+ TEMP="$(readlink -f "$PWD/tmp.tar.gz")"
+ wget --quiet "$URL" -O "$TEMP"
+ cdp "$DIR"
+ tar xaf "$TEMP" --strip-components=1
+ rm "$TEMP"
+ cd -
+}
+
+build_llvm_clang() {
+ fetch "$BASE/llvm-project" "$LLVM_URL"
+ cdp "$BASE/build-llvm"
+
+ cmake -G Ninja \
+ -DCMAKE_BUILD_TYPE=Release \
+ -DCMAKE_INSTALL_PREFIX=${TOOLCHAIN_INSTALL} \
+ -DLLVM_ENABLE_LLD=ON \
+ -DLLVM_TARGETS_TO_BUILD="X86;Hexagon" \
+ -DLLVM_ENABLE_PROJECTS="clang;lld" \
+ "$BASE/llvm-project/llvm"
+ ninja all install
+ cd ${TOOLCHAIN_BIN}
+ ln -sf clang hexagon-unknown-linux-musl-clang
+ ln -sf clang++ hexagon-unknown-linux-musl-clang++
+ ln -sf llvm-ar hexagon-unknown-linux-musl-ar
+ ln -sf llvm-objdump hexagon-unknown-linux-musl-objdump
+ ln -sf llvm-objcopy hexagon-unknown-linux-musl-objcopy
+ ln -sf llvm-readelf hexagon-unknown-linux-musl-readelf
+ ln -sf llvm-ranlib hexagon-unknown-linux-musl-ranlib
+
+ # workaround for now:
+ cat <<EOF > hexagon-unknown-linux-musl.cfg
+-G0 --sysroot=${HEX_SYSROOT}
+EOF
+}
+
+build_clang_rt() {
+ cdp "$BASE/build-clang_rt"
+ cmake -G Ninja \
+ -DCMAKE_BUILD_TYPE=Release \
+ -DLLVM_CONFIG_PATH="$BASE/build-llvm/bin/llvm-config" \
+ -DCMAKE_ASM_FLAGS="-G0 -mlong-calls -fno-pic --target=hexagon-unknown-linux-musl " \
+ -DCMAKE_SYSTEM_NAME=Linux \
+ -DCMAKE_C_COMPILER="${TOOLCHAIN_BIN}/hexagon-unknown-linux-musl-clang" \
+ -DCMAKE_ASM_COMPILER="${TOOLCHAIN_BIN}/hexagon-unknown-linux-musl-clang" \
+ -DCMAKE_INSTALL_PREFIX=${HEX_TOOLS_TARGET_BASE} \
+ -DCMAKE_CROSSCOMPILING=ON \
+ -DCMAKE_C_COMPILER_FORCED=ON \
+ -DCMAKE_CXX_COMPILER_FORCED=ON \
+ -DCOMPILER_RT_BUILD_BUILTINS=ON \
+ -DCOMPILER_RT_BUILTINS_ENABLE_PIC=OFF \
+ -DCMAKE_SIZEOF_VOID_P=4 \
+ -DCOMPILER_RT_OS_DIR= \
+ -DCAN_TARGET_hexagon=1 \
+ -DCAN_TARGET_x86_64=0 \
+ -DCOMPILER_RT_SUPPORTED_ARCH=hexagon \
+ -DLLVM_ENABLE_PROJECTS="compiler-rt" \
+ "$BASE/llvm-project/compiler-rt"
+ ninja install-compiler-rt
+}
+
+build_musl_headers() {
+ fetch "$BASE/musl" "$MUSL_URL"
+ cd "$BASE/musl"
+ make clean
+ CC=${TOOLCHAIN_BIN}/hexagon-unknown-linux-musl-clang \
+ CROSS_COMPILE=hexagon-unknown-linux-musl \
+ LIBCC=${HEX_TOOLS_TARGET_BASE}/lib/libclang_rt.builtins-hexagon.a \
+ CROSS_CFLAGS="-G0 -O0 -mv65 -fno-builtin -fno-rounding-math --target=hexagon-unknown-linux-musl" \
+ ./configure --target=hexagon --prefix=${HEX_TOOLS_TARGET_BASE}
+ PATH=${TOOLCHAIN_BIN}:$PATH make CROSS_COMPILE= install-headers
+
+ cd ${HEX_SYSROOT}/..
+ ln -sf hexagon-unknown-linux-musl hexagon
+}
+
+build_kernel_headers() {
+ fetch "$BASE/linux" "$LINUX_URL"
+ mkdir -p "$BASE/build-linux"
+ cd "$BASE/linux"
+ make O=../build-linux ARCH=hexagon \
+ KBUILD_CFLAGS_KERNEL="-mlong-calls" \
+ CC=${TOOLCHAIN_BIN}/hexagon-unknown-linux-musl-clang \
+ LD=${TOOLCHAIN_BIN}/ld.lld \
+ KBUILD_VERBOSE=1 comet_defconfig
+ make mrproper
+
+ cd "$BASE/build-linux"
+ make \
+ ARCH=hexagon \
+ CC=${TOOLCHAIN_BIN}/clang \
+ INSTALL_HDR_PATH=${HEX_TOOLS_TARGET_BASE} \
+ V=1 \
+ headers_install
+}
+
+build_musl() {
+ cd "$BASE/musl"
+ make clean
+ CROSS_COMPILE=hexagon-unknown-linux-musl- \
+ AR=llvm-ar \
+ RANLIB=llvm-ranlib \
+ STRIP=llvm-strip \
+ CC=clang \
+ LIBCC=${HEX_TOOLS_TARGET_BASE}/lib/libclang_rt.builtins-hexagon.a \
+ CFLAGS="-G0 -O0 -mv65 -fno-builtin -fno-rounding-math --target=hexagon-unknown-linux-musl" \
+ ./configure --target=hexagon --prefix=${HEX_TOOLS_TARGET_BASE}
+ PATH=${TOOLCHAIN_BIN}/:$PATH make -j CROSS_COMPILE= install
+ cd ${HEX_TOOLS_TARGET_BASE}/lib
+ ln -sf libc.so ld-musl-hexagon.so
+ ln -sf ld-musl-hexagon.so ld-musl-hexagon.so.1
+ cdp ${HEX_TOOLS_TARGET_BASE}/../lib
+ ln -sf ../usr/lib/ld-musl-hexagon.so.1
+}
+
+build_llvm_clang
+build_kernel_headers
+build_musl_headers
+build_clang_rt
+build_musl
new file mode 100644
@@ -0,0 +1 @@
+FROM revng/qemu:debian-hexagon-cross
@@ -124,6 +124,10 @@ for target in $target_list; do
container_image=fedora-cris-cross
container_cross_cc=cris-linux-gnu-gcc
;;
+ hexagon-*)
+ container_image=debian-hexagon-cross
+ container_cross_cc=hexagon-unknown-linux-musl-clang
+ ;;
hppa-*)
container_image=debian-hppa-cross
container_cross_cc=hppa-linux-gnu-gcc