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 ltrace

is_enabled="${CT_LTRACE}"

do_print_filename() {

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

    echo "ltrace-${CT_LTRACE_VERSION}.orig"

}

do_debug_ltrace_get() {

    CT_GetFile "ltrace_${CT_LTRACE_VERSION}.orig" {ftp,http}://ftp.de.debian.org/debian/pool/main/l/ltrace/

    # Create a link so that the following steps are easier to do:

    cd "${CT_TARBALLS_DIR}"

    ltrace_ext=$(CT_GetFileExtension "ltrace_${CT_LTRACE_VERSION}.orig")

    ln -sf "ltrace_${CT_LTRACE_VERSION}.orig${ltrace_ext}" "ltrace-${CT_LTRACE_VERSION}${ltrace_ext}"

}

do_debug_ltrace_extract() {

    CT_ExtractAndPatch "ltrace-${CT_LTRACE_VERSION}"

}

do_debug_ltrace_build() {

    CT_DoStep INFO "Installing ltrace"

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

    CT_Pushd "${CT_BUILD_DIR}/build-ltrace"

    CT_DoLog EXTRA "Configuring ltrace"

#    CFLAGS="-I${CT_SYSROOT_DIR}/usr/include"                \

#    LDFLAGS="-L${CT_SYSROOT_DIR}/usr/include"               \

    CT_DoExecLog ALL                                        \

    "${CT_SRC_DIR}/ltrace-${CT_LTRACE_VERSION}/configure"   \

        --build=${CT_BUILD}                                 \

        --host=${CT_TARGET}                                 \

        --prefix=/usr

    CT_DoLog EXTRA "Building ltrace"

    CT_DoExecLog ALL make

    CT_DoLog EXTRA "Installing ltrace"

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

    CT_Popd

    CT_EndStep

}