config/config.mk
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Tue Jan 12 19:24:03 2010 +0100 (2010-01-12)
changeset 1761 88020b2c3246
parent 1256 acf1944ef6a4
child 1854 02b74bd4373f
permissions -rw-r--r--
scripts/functions: change handling of nochdir

- 'nochdir' must be the first option
- have systematic pushd/popd, even if nochdir
     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' 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 KERNEL_CONFIG_FILES = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/kernel/*.in))
    19 CC_CONFIG_FILES     = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/cc/*.in))
    20 LIBC_CONFIG_FILES   = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/libc/*.in))
    21 DEBUG_CONFIG_FILES  = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/debug/*.in))
    22 TOOL_CONFIG_FILES   = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/config/tools/*.in))
    23 
    24 # Build the list of generated config files
    25 GEN_CONFIG_FILES = config.gen/arch.in     \
    26                    config.gen/kernel.in   \
    27                    config.gen/cc.in       \
    28                    config.gen/libc.in     \
    29                    config.gen/tools.in    \
    30                    config.gen/debug.in
    31 # ... and how to access them:
    32 # Generated files depends on config.mk (this file) because it has the
    33 # functions needed to build the genrated files, and thus they might
    34 # need re-generation if config.mk changes
    35 $(GEN_CONFIG_FILES): config.gen                         \
    36                      $(CT_LIB_DIR)/config/config.mk
    37 
    38 # Helper entry for the configurators
    39 PHONY += config_files
    40 config_files: $(STATIC_CONFIG_FILES) $(GEN_CONFIG_FILES)
    41 
    42 # Where to access to the source config files from
    43 config:
    44 	@$(ECHO) "  LN    config"
    45 	$(SILENT)ln -s $(CT_LIB_DIR)/config config
    46 
    47 # Where to store the generated config files into
    48 config.gen:
    49 	@$(ECHO) "  MKDIR config.gen"
    50 	$(SILENT)mkdir -p config.gen
    51 
    52 #-----------------------------------------------------------
    53 # Build list of per-component-type items to easily build generated files
    54 
    55 ARCHS   = $(patsubst config/arch/%.in,%,$(ARCH_CONFIG_FILES))
    56 KERNELS = $(patsubst config/kernel/%.in,%,$(KERNEL_CONFIG_FILES))
    57 CCS     = $(patsubst config/cc/%.in,%,$(CC_CONFIG_FILES))
    58 LIBCS   = $(patsubst config/libc/%.in,%,$(LIBC_CONFIG_FILES))
    59 DEBUGS  = $(patsubst config/debug/%.in,%,$(DEBUG_CONFIG_FILES))
    60 TOOLS   = $(patsubst config/tools/%.in,%,$(TOOL_CONFIG_FILES))
    61 
    62 #-----------------------------------------------------------
    63 # Helper functions to ease building generated config files
    64 
    65 # The function 'build_gen_choice_in' builds a choice-menu of a list of
    66 # components in the given list, also adding source-ing of associazted
    67 # config files:
    68 # $1 : destination file
    69 # $2 : name for the entries family (eg. Architecture, kernel...)
    70 # $3 : prefix for the choice entries (eg. ARCH, KERNEL...)
    71 # $4 : base directory containing config files
    72 # $5 : list of config entries (eg. for architectures: "alpha arm ia64"...,
    73 #      and for kernels: "bare-metal linux"...)
    74 # Example to build the kernels generated config file:
    75 # $(call build_gen_choice_in,config.gen/kernel.in,Target OS,KERNEL,config/kernel,$(KERNELS))
    76 define build_gen_choice_in
    77 	@$(ECHO) '  IN    $(1)'
    78 	$(SILENT)(echo "# $(2) menu";                                           \
    79 	  echo "# Generated file, do not edit!!!";                              \
    80 	  echo "";                                                              \
    81 	  echo "choice";                                                        \
    82 	  echo "    bool";                                                      \
    83 	  echo "    prompt \"$(2)\"";                                           \
    84 	  echo "";                                                              \
    85 	  for entry in $(5); do                                                 \
    86 	    file="$(4)/$${entry}.in";                                           \
    87 	    _entry=$$(echo "$${entry}" |$(sed) -r -s -e 's/[-.+]/_/g;');        \
    88 	    echo "config $(3)_$${_entry}";                                      \
    89 	    echo "    bool";                                                    \
    90 	    echo "    prompt \"$${entry}\"";                                    \
    91 	    dep_val=$$($(grep) -E '^# depends on ' $${file} 2>/dev/null);       \
    92 	    if [ -n "$${dep_val}" ]; then                                       \
    93 	      echo "    $${dep_val#\# }";                                       \
    94 	    fi;                                                                 \
    95 	    echo "";                                                            \
    96 	  done;                                                                 \
    97 	  echo "endchoice";                                                     \
    98 	  for entry in $(5); do                                                 \
    99 	    file="$(4)/$${entry}.in";                                           \
   100 	    _entry=$$(echo "$${entry}" |$(sed) -r -s -e 's/[-.+]/_/g;');        \
   101 	    echo "";                                                            \
   102 	    echo "if $(3)_$${_entry}";                                          \
   103 	    echo "config $(3)";                                                 \
   104 	    echo "    default \"$${entry}\" if $(3)_$${_entry}";                \
   105 	    echo "source $${file}";                                             \
   106 	    echo "endif";                                                       \
   107 	  done;                                                                 \
   108 	  echo "";                                                              \
   109 	  for file in $(wildcard $(4)/*.in-common); do                          \
   110 	    echo "source $${file}";                                             \
   111 	  done;                                                                 \
   112 	 ) >$(1)
   113 endef
   114 
   115 # The function 'build_gen_menu_in' builds a menuconfig for each component in
   116 # the given list, source-ing the associated files conditionnaly:
   117 # $1 : destination file
   118 # $2 : name of entries family (eg. Tools, Debug...)
   119 # $3 : prefix for the menu entries (eg. TOOL, DEBUG)
   120 # $4 : base directory containing config files
   121 # $5 : list of config entries (eg. for tools: "libelf sstrip"..., and for
   122 #      debug: "dmalloc duma gdb"...)
   123 # Example to build the tools generated config file:
   124 # $(call build_gen_menu_in,config.gen/tools.in,Tools,TOOL,config/tools,$(TOOLS))
   125 define build_gen_menu_in
   126 	@$(ECHO) '  IN    $(1)'
   127 	$(SILENT)(echo "# $(2) facilities menu";                                \
   128 	  echo "# Generated file, do not edit!!!";                              \
   129 	  echo "";                                                              \
   130 	  for entry in $(5); do                                                 \
   131 	    file="$(4)/$${entry}.in";                                           \
   132 	    _entry=$$(echo "$${entry}" |$(sed) -r -s -e 's/[-.+]/_/g;');        \
   133 	    echo "menuconfig $(3)_$${_entry}";                                  \
   134 	    echo "    bool";                                                    \
   135 	    echo "    prompt \"$${entry}\"";                                    \
   136 	    dep_val=$$($(grep) -E '^# depends on ' $${file} 2>/dev/null);       \
   137 	    if [ -n "$${dep_val}" ]; then                                       \
   138 	      echo "    $${dep_val#\# }";                                       \
   139 	    fi;                                                                 \
   140 	    echo "if $(3)_$${_entry}";                                          \
   141 	    echo "source $${file}";                                             \
   142 	    echo "endif";                                                       \
   143 	    echo "";                                                            \
   144 	  done;                                                                 \
   145 	 ) >$(1)
   146 endef
   147 
   148 #-----------------------------------------------------------
   149 # The rules for the generated config files
   150 
   151 config.gen/arch.in: $(ARCH_CONFIG_FILES)
   152 	$(call build_gen_choice_in,$@,Target Architecture,ARCH,config/arch,$(ARCHS))
   153 
   154 config.gen/kernel.in: $(KERNEL_CONFIG_FILES)
   155 	$(call build_gen_choice_in,$@,Target OS,KERNEL,config/kernel,$(KERNELS))
   156 
   157 config.gen/cc.in: $(CC_CONFIG_FILES)
   158 	$(call build_gen_choice_in,$@,C compiler,CC,config/cc,$(CCS))
   159 
   160 config.gen/libc.in: $(LIBC_CONFIG_FILES)
   161 	$(call build_gen_choice_in,$@,C library,LIBC,config/libc,$(LIBCS))
   162 
   163 config.gen/tools.in: $(TOOL_CONFIG_FILES)
   164 	$(call build_gen_menu_in,$@,Tools,TOOL,config/tools,$(TOOLS))
   165 
   166 config.gen/debug.in: $(DEBUG_CONFIG_FILES)
   167 	$(call build_gen_menu_in,$@,Debug,DEBUG,config/debug,$(DEBUGS))
   168 
   169 #-----------------------------------------------------------
   170 # Cleaning up the mess...
   171 
   172 clean::
   173 	@$(ECHO) "  CLEAN config"
   174 	$(SILENT)rm -f config 2>/dev/null || true
   175 	@$(ECHO) "  CLEAN config.gen"
   176 	$(SILENT)rm -rf config.gen