Introduce a new EXPERIMENTAL feature: BARE_METAL.
This should ultimately llow to build bare-metal compilers, for targets that have no kernel and no C library.
Move the C library build script to their own sub-directory; introduce an empty build script for bare-metal.
Move the compiler build script to its own sub-directory.
Move the kernel build script to its own sub-directory; introduce an empty build script for bare-metal.
Update the ARM target tuples to enable bare-metal targets.
Add two ARM bare-metal samples.
Add latest Linux kernel versions.

/trunk/scripts/build/kernel/none.sh | 77 6 71 0 +----
/trunk/scripts/build/cc/gcc.sh | 58 41 17 0 ++-
/trunk/scripts/build/libc/none.sh | 513 9 504 0 +-----------------------------
/trunk/scripts/crosstool.sh | 17 9 8 0 +
/trunk/scripts/functions | 6 4 2 0 +
/trunk/scripts/showSamples.sh | 6 3 3 0
/trunk/samples/arm-unknown-elf/crosstool.config | 225 225 0 0 +++++++++++++
/trunk/samples/arm-unknown-eabi/crosstool.config | 223 223 0 0 +++++++++++++
/trunk/config/kernel/linux_headers_install.in | 64 27 37 0 ++--
/trunk/config/kernel.in | 9 8 1 0 +
/trunk/config/toolchain.in | 1 1 0 0 +
/trunk/config/cc/gcc.in | 3 3 0 0 +
/trunk/config/debug/dmalloc.in | 1 1 0 0 +
/trunk/config/debug/gdb.in | 4 3 1 0 +
/trunk/config/debug/strace.in | 1 1 0 0 +
/trunk/config/debug/duma.in | 1 1 0 0 +
/trunk/config/cc.in | 8 8 0 0 +
/trunk/config/target.in | 13 13 0 0 +
/trunk/config/binutils.in | 1 1 0 0 +
/trunk/config/gmp_mpfr.in | 1 1 0 0 +
/trunk/config/libc.in | 17 11 6 0 +
/trunk/arch/arm/functions | 3 1 2 0 -
22 files changed, 600 insertions(+), 652 deletions(-)

 # Build script for the dmalloc debug library facility

 is_enabled="${CT_DMALLOC}"

 do_print_filename() {

     [ "${CT_DMALLOC}" = "y" ] || return 0

     echo "dmalloc-${CT_DMALLOC_VERSION}"

 }

 do_debug_dmalloc_get() {

     CT_GetFile "dmalloc-${CT_DMALLOC_VERSION}" http://dmalloc.com/releases/

 }

 do_debug_dmalloc_extract() {

     CT_ExtractAndPatch "dmalloc-${CT_DMALLOC_VERSION}"

 }

 do_debug_dmalloc_build() {

     CT_DoStep INFO "Installing dmalloc"

     CT_DoLog EXTRA "Configuring dmalloc"

     mkdir -p "${CT_BUILD_DIR}/build-dmalloc"

     cd "${CT_BUILD_DIR}/build-dmalloc"

     extra_config=

     case "${CT_CC_LANG_CXX}" in

         y)  extra_config="${extra_config} --enable-cxx";;

         *)  extra_config="${extra_config} --disable-cxx";;

     esac

     case "${CT_THREADS_NONE}" in

         y)  extra_config="${extra_config} --disable-threads";;

         *)  extra_config="${extra_config} --enable-threads";;

     esac

     case "${CT_SHARED_LIBS}" in

         y)  extra_config="${extra_config} --enable-shlib";;

         *)  extra_config="${extra_config} --disable-shlib";;

     esac

     CT_DoLog DEBUG "Extra config passed: '${extra_config}'"

     LD="${CT_TARGET}-ld"                                        \

     AR="${CT_TARGET}-ar"                                        \

     CT_DoExecLog ALL                                            \

     "${CT_SRC_DIR}/dmalloc-${CT_DMALLOC_VERSION}/configure"     \

         --prefix=/usr                                           \

         --build="${CT_BUILD}"                                   \

         --host="${CT_TARGET}"                                   \

         ${extra_config}

     CT_DoLog EXTRA "Building dmalloc"

     CT_DoExecLog ALL make 2>&1 |CT_DoLog ALL

     CT_DoLog EXTRA "Installing dmalloc"

     CT_DoExecLog ALL make DESTDIR="${CT_SYSROOT_DIR}" installincs installlib

     CT_DoExecLog ALL make DESTDIR="${CT_DEBUG_INSTALL_DIR}" installutil

     CT_EndStep

 }