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(-)

 #!/bin/sh

 # (C) 2008 Yann E. MORIN <yann.morin.1998@anciens.enib.fr>

 # Licensed under the GPL v.2

 LIBDUMA_SO=

 case "$1" in

   -on)

     case "${LD_PRELOAD}" in

       *${LIBDUMA_SO}*) ;;

       *) LD_PRELOAD="${LIBDUMA_SO} ${LD_PRELOAD}";;

     esac

     shift

     ;;

   -off)

     # We use a suposedly POSIX-compliant shell: /bin/sh

     #  -> we can't use "${LD_PRELOAD//${LIBDUMA_SO}/}", it's not POSIX

     # We don't know if sed will be present on the target

     #  -> we can't use $(echo "${LD_PRELOAD}" |sed -r -e "s|${LIBDUMA_SO}||;")

     # So, iterate through LD_PRELOAD, and keep only those libs that

     # are not "${LIBDUMA_SO}"

     old_LD_PRELOAD="${LD_PRELOAD}"

     LD_PRELOAD=

     for lib in ${old_LD_PRELOAD}; do

       [ "${lib}" = "${LIBDUMA_SO}" ] || LD_PRELOAD="${LD_PRELOAD} ${lib}"

     done

     unset old_LD_PRELOAD

     shift

     ;;

   -show)

     case "${LD_PRELOAD}" in

       *${LIBDUMA_SO}*) echo "duma is enabled";;

       *)               echo "duma is disabled";;

     esac

     exit 0

     ;;

   "")

     cat <<_EOF_

 Usage:

     . $0 <-on|-off|-show>

         Sets, unsets or show DUMA usage.

     $0 <executable [arg...]>

         Execute 'executable' (with arguments 'args') using DUMA.

 _EOF_

     false # Don't 'exit', we could well be source'd

     ;;

   *)

     exec "$0" -on "$@"

     ;;

 esac

 export LD_PRELOAD

 if [ -n "$1" ]; then

   exec "$@"

 fi