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# vim:ts=4:sw=4:sts=4:noexpandtab
MAKEFLAGS += --no-builtin-rules
# Default output path. Can be changed by enviroment to compile to different folder
# than default.
O ?= .
# This variable can be overwritten to show executed commands
Q ?= @
# This variable can be used if you want to have configuration file for you project
# in different location than default. You should use absolute path.
CONFIG ?= $(O)/.config
.PHONY: all
# Check if we have configuration"
ifneq ("$(wildcard $(CONFIG))","")
all: libioe.a
else
all: help $(CONFIG)
endif
ifneq ("$(wildcard $(CONFIG))","") # Check if we have configuration
ifeq (,$(filter clean help docs serve-docs clean-docs config oldconfig \
allyesconfig menuconfig, \
$(MAKECMDGOALS))) # Ignore build targets if goal is not building
include $(CONFIG) # include configuration
include src/sources.mk
OBJ = $(patsubst %.c,$(O)/build/%.o,$(SRC))
DEP = $(patsubst %.c,$(O)/build/%.d,$(SRC))
-include $(DEP)
CFLAGS = $(shell echo $(CCFLAGS)) $(shell echo -DF_CPU=$(F_CPU)000L) \
-mmcu=$(MMCU) -Iinclude -imacros $(O)/build/config.h
CC = $(CHOST)gcc
AR = $(CHOST)ar
CPP = $(CHOST)cpp
$(O)/libioe.a: $(OBJ)
@echo " AR $@"
$(Q)$(AR) -crs $@ $^
$(OBJ): $(O)/build/%.o: src/%.c
@mkdir -p "$(@D)"
@echo " CC $@"
$(Q)$(CC) $(CFLAGS) -c -o $@ $<
$(DEP): $(O)/build/%.d: src/%.c $(O)/build/config.h
@mkdir -p "$(@D)"
@echo " DEP $@"
$(Q)$(CPP) -MM -MG -MT '$(O)/build/$*.o $@' $(CFLAGS) -o $@ $<
$(O)/build/config.h: $(CONFIG)
@mkdir -p "$(@D)"
@echo " GEN $@"
$(Q)grep -v "^#" $(CONFIG) | grep "CONFIG_" | sed -e 's/="\(.*\)"/=\1/;s/=/ /;s/^/#define /' > $@
else
$(O)/libioe.a:
@echo Please execute non-building target separate from building ones
@exit 1
endif
else
$(O)/libioe.a: $(CONFIG) # Print error message for missing config file
endif
.PHONY: clean
clean:
@echo " CLEAN BUILD"
$(Q)$(RM) -r $(O)/build
@echo " CLEAN libioe.a"
$(Q)$(RM) $(O)/libioe.a
.PHONY: docs
docs:
@echo " DOC $@"
$(Q)mkdocs build
.PHONY: serve-docs
serve-docs:
$(Q)mkdocs serve
.PHONY: clean-docs
clean-docs:
@echo " CLEAN docs"
$(Q)$(RM) -r html
.PHONY: proper
proper: clean clean-docs
@echo " CLEAN CONFIG"
$(Q)$(RM) $(CONFIG) $(CONFIG).orig .config.cmd
.PHONY: help
help:
@echo "AVR input/output expansion library"
@echo "all/libioe.a - Build library"
@echo "config - Start configuration program"
@echo "menuconfig - NCurses based configuration program (Kconfig)"
@echo "docs - Build documentation"
@echo "server-docs - Start temporally http server with documentation"
@echo "help - Prints this text"
@echo "clean - Removing all object files generated from source files"
@echo "clean-docs - Remove generated documentation"
@echo "proper - Cleans everything including configuration"
TOOL_PATH=tools
IOEROOT=.
include tools/kconfig.mk
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