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(-)

 # Makefile for each steps

 # Copyright 2006 Yann E. MORIN <yann.morin.1998@anciens.enib.fr>

 CT_STEPS := libc_check_config   \

             kernel_headers      \

             gmp                 \

             mpfr                \

             binutils            \

             cc_core_pass_1      \

             libc_headers        \

             libc_start_files    \

             cc_core_pass_2      \

             libc                \

             cc                  \

             libc_finish         \

             binutils_target     \

             gmp_target          \

             mpfr_target         \

             tools               \

             debug               \

 export CT_STEPS

 $(CT_STEPS):

 	@$(CT_NG) RESTART=$@ STOP=$@ build

 $(patsubst %,+%,$(CT_STEPS)):

 	@$(CT_NG) STOP=$(patsubst +%,%,$@) build

 $(patsubst %,%+,$(CT_STEPS)):

 	@$(CT_NG) RESTART=$(patsubst %+,%,$@) build

 help-build::

 	@echo  '  list-steps         - List all build steps'

 list-steps:

 	@echo  'Available build steps, in order:'

 	@for step in $(CT_STEPS); do    \

 	     echo "  - $${step}";       \

 	 done

 	@echo  'Use "$(CT_NG) <step>" to execute only that step.'

 	@echo  'Use "$(CT_NG) +<step>" to execute up to that step.'

 	@echo  'Use "$(CT_NG) <step>+" to execute from that step onward.'