#!/bin/bash # Build a simple cross compiler for the specified target. # This simple compiler has no thread support, no libgcc_s.so, doesn't include # uClibc++, and is dynamically linked against the host's shared libraries. # Its stripped down nature makes it easy to build on an arbitrary host, and # provides just enough capability to build a root filesystem, and to be used # as a distcc accelerator from within that system. # Get lots of predefined environment variables and shell functions. source sources/include.sh || exit 1 # Parse sources/targets/$1 load_target "$1" # If this target has a base architecture that's already been built, use that. check_for_base_arch || exit 0 export TOOLCHAIN_PREFIX="${ARCH}-" # Build binutils, gcc, and ccwrap build_section binutils [ ! -z "$ELF2FLT" ] && build_section elf2flt build_section gcc build_section ccwrap if [ ! -z "$KARCH" ] then # Build C Library build_section linux-headers if [ -z "$UCLIBC_CONFIG" ] || [ ! -z "$MUSL" ] then build_section musl else build_section uClibc fi fi [ ! -z "$KARCH" ] && cat > "${STAGE_DIR}"/README << EOF Cross compiler for $ARCH from http://landley.net/aboriginal To use: Add the "bin" subdirectory to your \$PATH, and use "$ARCH-cc" as your compiler. The syntax used to build the Linux kernel is: make ARCH=${KARCH} CROSS_COMPILE=${ARCH}- EOF # Strip the binaries if [ -z "$SKIP_STRIP" ] then cd "$STAGE_DIR" for i in `find bin -type f` `find "$CROSS_TARGET" -type f` do strip "$i" 2> /dev/null done fi if [ ! -z "$KARCH" ] then # A quick hello world program to test the cross compiler out. # Build hello.c dynamic, then static, to verify header/library paths. echo "Sanity test: building Hello World." "${ARCH}-gcc" -Os "${SOURCES}/root-filesystem/src/hello.c" -o "$WORK"/hello && "${ARCH}-gcc" -Os -static "${SOURCES}/root-filesystem/src/hello.c" \ -o "$WORK"/hello || dienow # Does the hello world we just built actually run? if [ ! -z "$CROSS_SMOKE_TEST" ] then more/cross-smoke-test.sh "$ARCH" || exit 1 fi fi # Tar it up create_stage_tarball echo -e "\e[32mCross compiler toolchain build complete.\e[0m"