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#!/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="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 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
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