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

 # Check ncurses compatibility

 # What library to link

 ldflags()

 {

 	$cc -print-file-name=libncursesw.so | grep -q /

 	if [ $? -eq 0 ]; then

 		echo '-lncursesw'

 		exit

 	fi

 	$cc -print-file-name=libncurses.so | grep -q /

 	if [ $? -eq 0 ]; then

 		echo '-lncurses'

 		exit

 	fi

 	$cc -print-file-name=libcurses.so | grep -q /

 	if [ $? -eq 0 ]; then

 		echo '-lcurses'

 		exit

 	fi

 	exit 1

 }

 # Where is ncurses.h?

 ccflags()

 {

 	if [ -f /usr/include/ncurses/ncurses.h ]; then

 		echo '-I/usr/include/ncurses -DCURSES_LOC="<ncurses.h>"'

 	elif [ -f /usr/include/ncurses/curses.h ]; then

 		echo '-I/usr/include/ncurses -DCURSES_LOC="<ncurses/curses.h>"'

 	elif [ -f /usr/include/ncurses.h ]; then

 		echo '-DCURSES_LOC="<ncurses.h>"'

 	else

 		echo '-DCURSES_LOC="<curses.h>"'

 	fi

 }

 # Temp file, try to clean up after us

 tmp=.lxdialog.tmp

 trap "rm -f $tmp" 0 1 2 3 15

 # Check if we can link to ncurses

 check() {

 	echo "main() {}" | $cc -xc - -o $tmp 2> /dev/null

 	if [ $? -ne 0 ]; then

 		echo " *** Unable to find the ncurses libraries."          1>&2

 		echo " *** make menuconfig require the ncurses libraries"  1>&2

 		echo " *** "                                               1>&2

 		echo " *** Install ncurses (ncurses-devel) and try again"  1>&2

 		echo " *** "                                               1>&2

 		exit 1

 	fi

 }

 usage() {

 	printf "Usage: $0 [-check compiler options|-header|-library]\n"

 }

 if [ $# -eq 0 ]; then

 	usage

 	exit 1

 fi

 cc=""

 case "$1" in

 	"-check")

 		shift

 		cc="$@"

 		check

 		;;

 	"-ccflags")

 		ccflags

 		;;

 	"-ldflags")

 		shift

 		cc="$@"

 		ldflags

 		;;

 	"*")

 		usage

 		exit 1

 		;;

 esac