Mercurialcrosstool-ng / file revision
summary | shortlog | changelog | graph | tags | branches | files | changeset | file | latest | revisions | annotate | diff | raw | help
config/config.mk
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Tue Jan 03 22:57:25 2012 +0100 (2012-01-03)
changeset 2936 2dfea349d307
parent 2529 7e191964d8f2
child 2981 80151a249b85
permissions -rw-r--r--
cc/gcc: build core compilers for canadian

Currently, we rely on an existing external cross-compiler targetting
the target, to build the C library.

This can pause quite a few problems if that compiler is different from
the one we are building, because it could introduce some ABI issues.

This patch removes this dependency, by building the core compilers
as we do for standard cross, and also by building the binutils and
gcc, for running on the build machine.

This means we no longer need to offer the cross-sompiler selection in
the menuconfig.

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

     2 # crosstool-NG genererated config files

     3 # These targets are used from top-level makefile

     4 

     5 #-----------------------------------------------------------

     6 # List all config files, wether sourced or generated

     7 

     8 # The top-level config file to be used be configurators

     9 KCONFIG_TOP = config/config.in

    10 

    11 # Build the list of all source config files

    12 STATIC_CONFIG_FILES = $(patsubst $(CT_LIB_DIR)/%,%,$(shell find $(CT_LIB_DIR)/config -type f \( -name '*.in' -o -name '*.in.2' \) 2>/dev/null))

    13 # ... and how to access them:

    14 $(STATIC_CONFIG_FILES): config

    15 

    16 # Build a list of per-component-type source config files

    17 ARCH_CONFIG_FILES     = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/arch/*.in))

    18 ARCH_CONFIG_FILES_2   = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/arch/*.in.2))

    19 KERNEL_CONFIG_FILES   = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/kernel/*.in))

    20 KERNEL_CONFIG_FILES_2 = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/kernel/*.in.2))

    21 CC_CONFIG_FILES       = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/cc/*.in))

    22 CC_CONFIG_FILES_2     = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/cc/*.in.2))

    23 LIBC_CONFIG_FILES     = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/libc/*.in))

    24 LIBC_CONFIG_FILES_2   = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/libc/*.in.2))

    25 DEBUG_CONFIG_FILES    = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/debug/*.in))

    26 

    27 # Build the list of generated config files

    28 GEN_CONFIG_FILES = config.gen/arch.in     \

    29                    config.gen/kernel.in   \

    30                    config.gen/cc.in       \

    31                    config.gen/libc.in     \

    32                    config.gen/debug.in

    33 # ... and how to access them:

    34 # Generated files depends on the gen_in_frags script because it has the

    35 # functions needed to build the genrated files, and thus they might need

    36 # re-generation if it changes.

    37 # They also depends on config.mk (this file) because it has the dependency

    38 # rules, and thus they might need re-generation if the deps change.

    39 $(GEN_CONFIG_FILES): config.gen                             \

    40                      $(CT_LIB_DIR)/scripts/gen_in_frags.sh  \

    41                      $(CT_LIB_DIR)/config/config.mk

    42 

    43 # Helper entry for the configurators

    44 PHONY += config_files

    45 config_files: $(STATIC_CONFIG_FILES) $(GEN_CONFIG_FILES)

    46 

    47 # Where to access to the source config files from

    48 config:

    49 	@$(ECHO) "  LN    config"

    50 	$(SILENT)ln -s $(CT_LIB_DIR)/config config

    51 

    52 # Where to store the generated config files into

    53 config.gen:

    54 	@$(ECHO) "  MKDIR config.gen"

    55 	$(SILENT)mkdir -p config.gen

    56 

    57 #-----------------------------------------------------------

    58 # Build list of per-component-type items to easily build generated files

    59 

    60 ARCHS   = $(patsubst config/arch/%.in,%,$(ARCH_CONFIG_FILES))

    61 KERNELS = $(patsubst config/kernel/%.in,%,$(KERNEL_CONFIG_FILES))

    62 CCS     = $(patsubst config/cc/%.in,%,$(CC_CONFIG_FILES))

    63 LIBCS   = $(patsubst config/libc/%.in,%,$(LIBC_CONFIG_FILES))

    64 DEBUGS  = $(patsubst config/debug/%.in,%,$(DEBUG_CONFIG_FILES))

    65 

    66 #-----------------------------------------------------------

    67 # The rules for the generated config files

    68 

    69 # WARNING! If a .in file disapears between two runs, that will NOT be detected!

    70 

    71 config.gen/arch.in: $(ARCH_CONFIG_FILES) $(ARCH_CONFIG_FILES_2)

    72 	@$(ECHO) '  IN    $(@)'

    73 	$(SILENT)$(CT_LIB_DIR)/scripts/gen_in_frags.sh choice "$@" "Target Architecture" "ARCH" "config/arch" "Y" $(ARCHS)

    74 

    75 config.gen/kernel.in: $(KERNEL_CONFIG_FILES) $(KERNEL_CONFIG_FILES_2)

    76 	@$(ECHO) '  IN    $(@)'

    77 	$(SILENT)$(CT_LIB_DIR)/scripts/gen_in_frags.sh choice "$@" "Target OS" "KERNEL" "config/kernel" "Y" $(KERNELS)

    78 

    79 config.gen/cc.in: $(CC_CONFIG_FILES) $(CC_CONFIG_FILES_2)

    80 	@$(ECHO) '  IN    $(@)'

    81 	$(SILENT)$(CT_LIB_DIR)/scripts/gen_in_frags.sh choice "$@" "C compiler" "CC" "config/cc" "N" $(CCS)

    82 

    83 config.gen/libc.in: $(LIBC_CONFIG_FILES) $(LIBC_CONFIG_FILES_2)

    84 	@$(ECHO) '  IN    $(@)'

    85 	$(SILENT)$(CT_LIB_DIR)/scripts/gen_in_frags.sh choice "$@" "C library" "LIBC" "config/libc" "Y" $(LIBCS)

    86 

    87 config.gen/debug.in: $(DEBUG_CONFIG_FILES)

    88 	@$(ECHO) '  IN    $(@)'

    89 	$(SILENT)$(CT_LIB_DIR)/scripts/gen_in_frags.sh menu "$@" "Debug facilities" "DEBUG" "config/debug" $(DEBUGS)

    90 

    91 #-----------------------------------------------------------

    92 # Cleaning up the mess...

    93 

    94 clean::

    95 	@$(ECHO) "  CLEAN config"

    96 	$(SILENT)rm -f config 2>/dev/null || true

    97 	@$(ECHO) "  CLEAN config.gen"

    98 	$(SILENT)rm -rf config.gen
crosstool-ng