2 # $ make BOARDDIR=<board> BDIR=<dir>[,<dir>] CROSS_COMPILE=<gcc> all|clean|clean_all
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5 # all: Target when building
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6 # clean: Remove generatated files for a board
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7 # clean_all: Remove all generated files
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8 # help: Print some help
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11 # BOARDDIR=<board dir>
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12 # Select what board to build for
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13 # BDIR=<dir>[,<dir>]
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14 # Select what directories to build. The kernel is always built.
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16 # Specify the compiler to use.
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18 # If Q=@ cmd's will not be echoed.
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24 # Clean for a specific board
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25 # $ make BDIR=mpc551xsim clean
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27 # Build the simple example (assuming CROSS_COMPILE set)
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28 # $ make BOARDDIR= mpc551xsim BDIR=examples/simple all
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32 export UNAME:=$(shell uname)
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34 ifneq ($(findstring Darwin,$(UNAME)),)
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36 export SED=/opt/local/bin/gsed
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47 export TOPDIR = $(CURDIR)
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50 # Select default console
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51 # RAMLOG | TTY_T32 | TTY_WINIDEA
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52 export SELECT_OS_CONSOLE
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53 export SELECT_CONSOLE
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54 export USE_DEBUG_PRINTF
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57 ifneq ($(filter clean_all,$(MAKECMDGOALS)),clean_all)
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59 $(error BOARDDIR is empty)
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62 $(error BDIR is empty)
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70 # Ugly thing to make things work under cmd.exe
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71 PATH := /usr/bin/:$(PATH)
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72 FIND := $(shell which find)
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74 export objdir = obj_$(BOARDDIR)
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78 export def-y+=$(CFG_ARCH_$(ARCH)) $(CFG_MCU) $(CFG_CPU)
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80 # We descend into the object directories and build the. That way it's easier to build
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81 # multi-arch support and we don't have to use objdir everywhere.
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82 # ROOTDIR - The top-most directory
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83 # SUBDIR - The current subdirectory it's building.
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87 space:= $(empty) $(empty)
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88 split = $(subst $(comma), ,$(1))
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89 dir_cmd_goals := $(call split,$(BDIR))
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90 cmd_cmd_goals := $(filter all clean config,$(MAKECMDGOALS))
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92 # Check for CROSS_COMPILE
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93 ifneq ($(cmd_cmd_goals),)
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95 # Check that the board actually exist
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97 all_boards := $(subst boards/,,$(shell $(FIND) boards/ -maxdepth 1 -type d))
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98 all_boards_print := $(subst $(space),$(comma)$(space),$(strip $(all_boards)))
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99 ifeq ($(filter $(BOARDDIR),$(all_boards)),)
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100 $(error no such board: $(BOARDDIR), valid boards are: $(all_boards_print))
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112 all: libs $(dir_cmd_goals)
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119 @echo "Build a simple example"
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120 @echo " > make BOARDDIR=mpc551xsim CROSS_COMPILE=/opt/powerpc-eabi/bin/powerpc-eabi- BDIR=examples/simple all"
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123 @echo " > make clean"
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125 @echo "Present config:"
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126 @echo " BDIR = ${BDIR}"
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127 @echo " BOARDDIR = $(BOARDDIR)"
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128 @echo " CROSS_COMPILE = $(CROSS_COMPILE)"
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129 @echo " CURDIR = $(CURDIR)"
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134 @echo $(all_boards)
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138 @echo "==========[ BUILD INFO ]==========="
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139 @echo " BDIR: $(BDIR) [$(origin BDIR)]"
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140 @echo " BOARDDIR: $(BOARDDIR) [$(origin BOARDDIR)]"
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141 @echo " CROSS_COMPILE: $(CROSS_COMPILE) [$(origin CROSS_COMPILE)]"
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142 @echo " CURDIR: $(CURDIR)"
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145 $(dir_cmd_goals) :: show_build FORCE
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147 @echo ==========[ ${abspath $@} ]===========
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148 @if [ ! -d $@ ]; then echo "No such directory: \"$@\" quitting"; exit 1; fi
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149 +@[ -d $@/$(objdir) ] || mkdir -p $@/$(objdir)
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150 @chmod 777 $@/$(objdir)
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151 $(Q)$(MAKE) -r -C $@/$(objdir) -f $(CURDIR)/scripts/rules.mk ROOTDIR=$(CURDIR) SUBDIR=$@ $(cmd_cmd_goals)
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158 @find . -type d -name *
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161 $(Q)find . -type d -name obj_* | xargs rm -rf
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162 $(Q)find . -type f -name *.a | xargs rm -rf
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164 @echo " >>>>>>>>> DONE <<<<<<<<<"
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167 config: $(dir_cmd_goals)
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170 clean: $(dir_cmd_goals)
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172 @echo " >> Cleaning $(CURDIR)"
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173 # $(Q)find . -type d -name $(objdir) | xargs rm -rf
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174 $(Q)find . -type f -name *.a| xargs rm -rf
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177 @echo " >>>>>>>>> DONE <<<<<<<<<"
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