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steps.mk
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jul 17 22:43:07 2011 +0200 (2011-07-17)
changeset 2893 a8a65758664f
parent 2278 e86826b8621a
child 2905 286b2937c101
child 2912 6467c949c91c
permissions -rw-r--r--
cc/gcc: do not use the core pass-2 to build the baremetal compiler

In case we build a baremetal compiler, use the standard passes:
- core_cc is used to build the C library;
- as such, it is meant to run on build, not host;
- the final compiler is meant to run on host;

As the current final compiler step can not build a baremetal compiler,
call the core backend from the final step.

NB: Currently, newlib is built during the start_files pass, so we have
to have a core compiler by then... Once we can build the baremetal
compiler from the final cc step, then we can move the newlib build to
the proper step, and then get rid of the core pass-1 static compiler...

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     1 # Makefile for each steps

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

     3 

     4 # ----------------------------------------------------------

     5 # This is the steps help entry

     6 

     7 help-build::

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

     9 

    10 help-env::

    11 	@echo  '  STOP=step          - Stop the build just after this step (list with list-steps)'

    12 	@echo  '  RESTART=step       - Restart the build just before this step (list with list-steps)'

    13 

    14 # ----------------------------------------------------------

    15 # The steps list

    16 

    17 # Please keep the last line with a '\' and keep the following empy line:

    18 # it helps when diffing and merging.

    19 CT_STEPS := libc_check_config   \

    20             gmp                 \

    21             mpfr                \

    22             ppl                 \

    23             cloog               \

    24             mpc                 \

    25             libelf              \

    26             binutils            \

    27             elf2flt             \

    28             sstrip              \

    29             cc_core_pass_1      \

    30             kernel_headers      \

    31             libc_start_files    \

    32             cc_core_pass_2      \

    33             libc                \

    34             cc                  \

    35             libc_finish         \

    36             libelf_target       \

    37             binutils_target     \

    38             debug               \

    39             test_suite          \

    40             finish              \

    41 

    42 # Make the list available to sub-processes (scripts/crosstool-NG.sh needs it)

    43 export CT_STEPS

    44 

    45 # Print the steps list

    46 PHONY += list-steps

    47 list-steps:

    48 	@echo  'Available build steps, in order:'

    49 	@for step in $(CT_STEPS); do    \

    50 	     echo "  - $${step}";       \

    51 	 done

    52 	@echo  'Use "<step>" as action to execute only that step.'

    53 	@echo  'Use "+<step>" as action to execute up to that step.'

    54 	@echo  'Use "<step>+" as action to execute from that step onward.'

    55 

    56 # ----------------------------------------------------------

    57 # This part deals with executing steps

    58 

    59 $(CT_STEPS):

    60 	$(SILENT)$(MAKE) -rf $(CT_NG) V=$(V) RESTART=$@ STOP=$@ build

    61 

    62 $(patsubst %,+%,$(CT_STEPS)):

    63 	$(SILENT)$(MAKE) -rf $(CT_NG) V=$(V) STOP=$(patsubst +%,%,$@) build

    64 

    65 $(patsubst %,%+,$(CT_STEPS)):

    66 	$(SILENT)$(MAKE) -rf $(CT_NG) V=$(V) RESTART=$(patsubst %+,%,$@) build
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