[TOOLCHAIN] Building cross compiler, debugger and bootloader

util/build_toolchain.sh

@@ -0,0 +1,107 @@
+#!/usr/bin/env bash
+
+. util/toolchain_helpers.sh
+
+bindir=${TOOLCHAIN}/bin
+
+packages=(binutils gcc gdb)
+if [[ `uname` == 'Darwin' ]]; then
+  packages=("${packages[@]}" objconv)
+fi
+packages=("${packages[@]}" grub)
+
+# Binutils 2.26
+# Build with --with-sysroot for use in the future
+binutils_checkfile=${bindir}/${TARGET}-ld
+binutils_filename=binutils-2.26
+binutils_url=ftp://ftp.gnu.org/gnu/binutils/${binutils_filename}.tar.gz
+binutils_config="--target=${TARGET} \
+  --with-sysroot \
+  --disable-nls \
+  --disable-werror"
+
+# GCC 6.1.0
+# Build with --without-headers for now - this will be replaced later
+gcc_checkfile=${bindir}/${TARGET}-gcc
+gcc_filename=gcc-6.1.0
+gcc_url=ftp://ftp.gnu.org/gnu/gcc/${gcc_filename}/${gcc_filename}.tar.gz
+gcc_config="--target=${TARGET} \
+      --disable-nls \
+      --enable-languages=c,c++ \
+      --without-headers"
+gcc_make="all-gcc all-target-libgcc"
+gcc_install="install-gcc install-target-libgcc"
+
+# GDB 7.12
+gdb_checkfile=${bindir}/x86_64-elf-linux-gdb
+gdb_filename=gdb-7.12
+gdb_url=ftp://ftp.gnu.org/gnu/gdb/${gdb_filename}.tar.gz
+gdb_config="--target=x86_64-elf-linux \
+      --disable-debug \
+      --disable-dependency-tracking \
+      --with-python=/usr"
+
+# objconv
+# This is required for building grub on OSX
+objconv_checkfile=${bindir}/objconv
+objconv_filename=objconv
+objconv_url=git://github.com/vertis/objconv.git
+function objconv_install() {
+  # Download and build objconv
+  local package=objconv
+
+  pushd ${STASH}/${package} >/dev/null
+
+    echo "Compiling"
+    g++ -o ${TOOLCHAIN}/bin/objconv -O2 src/*.cpp \
+      >/dev/null 2>>"${STASH}/error-${package}.log" || fail
+  popd >/dev/null
+}
+
+# GRUB
+# The target x86_64-elf is close enough to what we want
+# Make sure to use the right target compiler chains
+grub_checkfile=${bindir}/grub-mkimage
+grub_filename=grub
+grub_url=git://git.savannah.gnu.org/grub.git
+grub_config="--target=x86_64-elf \
+      --disable-werror \
+      TARGET_CC=${TARGET}-gcc \
+      TARGET_OBJCOPY=${TARGET}-objcopy \
+      TARGET_STRIP=${TARGET}-strip \
+      TARGET_NM=${TARGET}-nm \
+      TARGET_RANLIB=${TARGET}-ranlib"
+grub_patchcmd="autogen.sh"
+
+function checkall() {
+  for package in "${packages[@]}"
+  do
+    check ${package} || return 1
+  done
+  return 0
+}
+
+function main() {
+  # If called with -c the script will check if a rebuild is necessary
+  while getopts "c" OPTION
+  do
+    case ${OPTION} in
+      c)
+        checkall
+        exit $?
+        ;;
+    esac
+  done
+
+  print_info "Preparing toolchain"
+
+  mkdir -p "${STASH}"
+
+  PATH=${TOOLCHAIN}/bin:${PATH}
+  for package in "${packages[@]}"
+  do
+    build_package ${package} || return 1
+  done
+}
+
+main "${@}"