From fe55aea04e6fa6914e3df635d4771fb2297dd3bd Mon Sep 17 00:00:00 2001
From: davidovski <david@davidovski.xyz>
Date: Sun, 27 Feb 2022 00:34:47 +0000
Subject: added bootstrapping procedure

---
 bootstrap/cross_tools.sh | 165 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 165 insertions(+)
 create mode 100644 bootstrap/cross_tools.sh

(limited to 'bootstrap/cross_tools.sh')

diff --git a/bootstrap/cross_tools.sh b/bootstrap/cross_tools.sh
new file mode 100644
index 0000000..68fa048
--- /dev/null
+++ b/bootstrap/cross_tools.sh
@@ -0,0 +1,165 @@
+#!/bin/sh
+
+cross_tools_kernel_headers () {
+    src "https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-$LINUX_VER.tar.xz"
+
+    make mrproper
+
+    make ARCH=${ARCH} headers
+    mkdir -pv $CROSS_TOOLS/$TARGET/include
+
+    cp -rv usr/include/* $CROSS_TOOLS/$TARGET/include
+    find $CROSS_TOOLS/$TARGET/include -name '.*.cmd' -exec rm -vf {} \;
+    rm -v $CROSS_TOOLS/$TARGET/include/Makefile
+}
+
+cross_tools_binutils () {
+    src "https://ftp.gnu.org/gnu/binutils/binutils-$BINUTILS_VER.tar.xz"
+
+    mkdir -v build &&
+        cd build &&
+
+    ../configure \
+       --prefix=${CROSS_TOOLS} \
+       --target=${TARGET} \
+       --with-sysroot=${CROSS_TOOLS}/${TARGET} \
+       --disable-nls \
+       --disable-multilib \
+       --disable-werror \
+       --enable-deterministic-archives \
+       --disable-compressed-debug-sections &&
+
+    make configure-host &&
+    make && make install
+}
+
+cross_tools_gcc_static () {
+    cd ${WD}
+    src "https://www.mpfr.org/mpfr-$MPFR_VER/mpfr-$MPFR_VER.tar.xz"
+    src "https://ftp.gnu.org/gnu/gmp/gmp-$GMP_VER.tar.xz"
+    src "https://ftp.gnu.org/gnu/mpc/mpc-$MPC_VER.tar.gz"
+    src "https://ftp.gnu.org/gnu/gcc/gcc-$GCC_VER/gcc-$GCC_VER.tar.xz"
+
+    mv -v ../mpfr-$MPFR_VER mpfr &&
+    mv -v ../gmp-$GMP_VER gmp &&
+    mv -v ../mpc-$MPC_VER mpc &&
+
+    mkdir -v build && cd  build &&
+
+    CFLAGS='-g0 -O0' \
+    CXXFLAGS=$CFLAGS \
+    ../configure \
+              --prefix=${CROSS_TOOLS} --build=${HOST} \
+              --host=${HOST}   --target=${TARGET} \
+              --with-sysroot=${CROSS_TOOLS}/${TARGET} \
+              --disable-nls         --with-newlib  \
+              --disable-libitm     --disable-libvtv \
+              --disable-libssp     --disable-shared \
+              --disable-libgomp    --without-headers \
+              --disable-threads    --disable-multilib \
+              --disable-libatomic  --disable-libstdcxx \
+              --enable-languages=c --disable-libquadmath \
+              --disable-libsanitizer --with-arch=${CPU} \
+              --disable-decimal-float --enable-clocale=generic  &&
+
+    make all-gcc all-target-libgcc &&
+    make install-gcc install-target-libgcc 
+}
+
+cross_tools_musl () {
+    src https://musl.libc.org/releases/musl-$MUSL_VER.tar.gz
+
+    ./configure \
+      CROSS_COMPILE=${TARGET}- \
+      --prefix=/ \
+      --target=${TARGET}  &&
+
+    make && DESTDIR=${CROSS_TOOLS} make install &&
+
+    # Add missing directory and link
+    mkdir -v ${CROSS_TOOLS}/usr &&
+    ln -sv ../include  ${CROSS_TOOLS}/usr/include &&
+
+    case $(uname -m) in
+      x86_64) export ARCH="x86_64"
+              ;;
+      i686)   export ARCH="i386"
+              ;;
+      arm*)   export ARCH="arm"
+              ;;
+      aarch64) export ARCH="aarch64"
+              ;;
+    esac
+
+    # Fix link
+    rm -vf ${CROSS_TOOLS}/lib/ld-musl-${ARCH}.so.1 &&
+    ln -sv libc.so ${CROSS_TOOLS}/lib/ld-musl-${ARCH}.so.1
+
+    # Create link for ldd:
+    ln -sv ../lib/ld-musl-$ARCH.so.1 ${CROSS_TOOLS}/bin/ldd
+
+    # Create config for dynamic library loading:
+    mkdir -v ${CROSS_TOOLS}/etc
+
+    echo $CROSS_TOOLS/lib >> ${CROSS_TOOLS}/etc/ld-musl-$ARCH.path 
+    echo $TOOLS/lib >> ${CROSS_TOOLS}/etc/ld-musl-$ARCH.path 
+
+    unset ARCH ARCH2
+}
+
+cross_tools_gcc_final () {
+    cd ${WD}
+    rm -rf *
+
+    src "https://www.mpfr.org/mpfr-$MPFR_VER/mpfr-$MPFR_VER.tar.xz"
+    src "https://ftp.gnu.org/gnu/gmp/gmp-$GMP_VER.tar.xz"
+    src "https://ftp.gnu.org/gnu/mpc/mpc-$MPC_VER.tar.gz"
+    src "https://ftp.gnu.org/gnu/gcc/gcc-$GCC_VER/gcc-$GCC_VER.tar.xz"
+
+    mv -v ../mpfr-$MPFR_VER mpfr
+    mv -v ../gmp-$GMP_VER gmp
+    mv -v ../mpc-$MPC_VER mpc
+
+    patch_gcc
+
+# Configure in a dedicated build directory
+mkdir build && cd  build &&
+AR=ar LDFLAGS="-Wl,-rpath,${CROSS_TOOLS}/lib" \
+../configure \
+    --prefix=${CROSS_TOOLS} \
+    --build=${HOST} \
+    --host=${HOST} \
+    --target=${TARGET} \
+    --disable-multilib \
+    --with-sysroot=${CROSS_TOOLS} \
+    --disable-nls \
+    --enable-shared \
+    --enable-languages=c,c++ \
+    --enable-threads=posix \
+    --enable-clocale=generic \
+    --enable-libstdcxx-time \
+    --enable-fully-dynamic-string \
+    --disable-symvers \
+    --disable-libsanitizer \
+    --disable-lto-plugin \
+    --disable-libssp 
+
+    # Build
+    make AS_FOR_TARGET="${TARGET}-as" \
+        LD_FOR_TARGET="${TARGET}-ld" &&
+
+    # Install
+    make install
+}
+
+cross_tools_file () {
+    src "https://astron.com/pub/file/file-$FILE_VER.tar.gz"
+    ./configure --prefix=${CROSS_TOOLS} --disable-libseccomp
+    make && make install
+}
+
+for p in kernel_headers binutils gcc_static musl gcc_final file; do
+    printf "${BLUE}building $p...\n${RESET}"
+    cross_tools_$p || die "Failed building $p"
+done
+printf "${GREEN}finished building cross-tools${RESET}\n"
-- 
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