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(-)

# Options specific to extracting packages

comment "Extracting"

config FORCE_EXTRACT

    bool

    prompt "Force extractions"

    default n

    help

      Force extraction of already exctracted tarballs.

      Usefull if you suspect a previous extract did not complete (eg. broken

      tarball), or you added a new set of patches for this component.

config OVERIDE_CONFIG_GUESS_SUB

    bool

    prompt "Override config.{guess,sub}"

    default y

    help

      Override tools' versions of config.guess and config.sub with the ones

      from crosstool-NG. This means that all instances of config.guess and

      config.sub in gcc, binutils, glibc, etc... will be replaced.

      Most of the time, the versions of those scripts found in packages are old

      versions, thus lacking some target definitions. This is the case for

      uClibc-based tuples in old versions of gcc and gdb, for example.

      Also, doing so will guarantee that all components have the same tuples

      definitions for your target, and not diverging ones.

      You can update the ones provided with crosstool-NG by first running:

        ct-ng updatetools

      in the directory where you want to run crosstool-NG prior to the build.

config ONLY_EXTRACT

    bool

    prompt "Stop after extracting tarballs"

    default n

    help

      Exit after unpacking and patching tarballs.

      Usefull to look at the code before doing the build itself.