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Makefile.base
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Makefile.base
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ifeq (, $(__RIOTBUILD_FLAG))
$(error You cannot build a module on its own. Use "make" in your application's directory instead.)
endif
#
# enable second expansion of prerequisites.
#
# Doing that here enables it globally for all modules
#
# See https://www.gnu.org/software/make/manual/html_node/Secondary-Expansion.html
# for what it can be used for.
.SECONDEXPANSION:
unexport DIRS
DIRS := $(sort $(abspath $(DIRS)))
_MOD := $(shell basename $(CURDIR))
MODULE ?= $(_MOD)
.PHONY: all clean $(DIRS:%=ALL--%) $(DIRS:%=CLEAN--%) $(MODULE).module \
compile-commands $(DIRS:%=COMPILE-COMMANDS--%)
all: $(MODULE).module ..nothing
..nothing:
@:
clean:: $(DIRS:%=CLEAN--%)
$(DIRS:%=ALL--%):
$(QQ)"$(MAKE)" -C $(@:ALL--%=%)
$(DIRS:%=CLEAN--%):
$(QQ)"$(MAKE)" -C $(@:CLEAN--%=%) clean
$(DIRS:%=COMPILE-COMMANDS--%):
$(QQ)"$(MAKE)" -C $(@:COMPILE-COMMANDS--%=%) compile-commands
## submodules
ifeq (1, $(SUBMODULES))
# don't use *.c as SRC if SRC is empty (e.g., no module selected)
NO_AUTO_SRC := 1
# allow different submodule basename (e.g., MODULE=cpu_periph_common, but match just periph_%)
BASE_MODULE ?= $(MODULE)
# for each $(BASE_MODULE)_<name> in USEMODULE, add <name>.c to SRC
SRC += $(wildcard $(patsubst $(BASE_MODULE)_%,%.c,$(filter $(BASE_MODULE)_%,$(USEMODULE))))
# remove duplicates
SRC := $(sort $(SRC))
endif
# By default consider C++ files has a .cpp extension
SRCXXEXT ?= cpp
ifeq ($(strip $(SRC))$(NO_AUTO_SRC),)
SRC := $(filter-out $(SRC_NOLTO), $(wildcard *.c))
endif
ifeq ($(strip $(SRCXX))$(NO_AUTO_SRC),)
SRCXX := $(filter-out $(SRCXXEXCLUDE),$(wildcard *.$(SRCXXEXT)))
endif
ifeq ($(strip $(ASMSRC))$(NO_AUTO_SRC),)
ASMSRC := $(wildcard *.s)
endif
ifeq ($(strip $(ASSMSRC))$(NO_AUTO_SRC),)
ASSMSRC := $(wildcard *.S)
endif
ifneq (,$(SRCXX))
ifeq (,$(filter cpp,$(FEATURES_USED)))
$(error Found C++ source, but feature "cpp" is not used. Add "FEATURES_REQUIRED += cpp")
endif
endif
compile-commands: | $(DIRS:%=COMPILE-COMMANDS--%)
$(file >$(BINDIR)/$(MODULE)/compile_cmds.txt,SRC: $(sort $(SRC) $(SRC_NO_LTO)))
$(file >>$(BINDIR)/$(MODULE)/compile_cmds.txt,SRC_NO_LTO: $(sort $(SRC_NO_LTO)))
$(file >>$(BINDIR)/$(MODULE)/compile_cmds.txt,SRCXX: $(sort $(SRCXX)))
$(file >>$(BINDIR)/$(MODULE)/compile_cmds.txt,CURDIR: $(CURDIR))
$(file >>$(BINDIR)/$(MODULE)/compile_cmds.txt,CFLAGS: $(CFLAGS))
$(file >>$(BINDIR)/$(MODULE)/compile_cmds.txt,LTOFLAGS: $(LTOFLAGS))
$(file >>$(BINDIR)/$(MODULE)/compile_cmds.txt,INCLUDES: $(INCLUDES))
$(file >>$(BINDIR)/$(MODULE)/compile_cmds.txt,CXXFLAGS: $(CXXFLAGS))
$(file >>$(BINDIR)/$(MODULE)/compile_cmds.txt,CXXINCLUDES: $(CXXINCLUDES))
$(file >>$(BINDIR)/$(MODULE)/compile_cmds.txt,CC: $(CC))
$(file >>$(BINDIR)/$(MODULE)/compile_cmds.txt,CXX: $(CXX))
$(file >>$(BINDIR)/$(MODULE)/compile_cmds.txt,TARGET_ARCH: $(TARGET_ARCH))
$(file >>$(BINDIR)/$(MODULE)/compile_cmds.txt,TARGET_ARCH_LLVM: $(TARGET_ARCH_LLVM))
# include makefile snippets for packages in $(USEPKG) that modify GENSRC:
-include $(USEPKG:%=$(RIOTPKG)/%/Makefile.gensrc)
GENOBJC := $(GENSRC:%.c=%.o)
OBJC_LTO := $(SRC:%.c=$(BINDIR)/$(MODULE)/%.o)
OBJC_NOLTO := $(SRC_NOLTO:%.c=$(BINDIR)/$(MODULE)/%.o)
OBJC := $(OBJC_NOLTO) $(OBJC_LTO)
OBJCXX := $(SRCXX:%.$(SRCXXEXT)=$(BINDIR)/$(MODULE)/%.o)
ASMOBJ := $(ASMSRC:%.s=$(BINDIR)/$(MODULE)/%.o)
ASSMOBJ := $(ASSMSRC:%.S=$(BINDIR)/$(MODULE)/%.o)
OBJ := $(OBJC) $(OBJCXX) $(ASMOBJ) $(ASSMOBJ) $(GENOBJC)
DEP := $(OBJC:.o=.d) $(OBJCXX:.o=.d) $(ASSMOBJ:.o=.d)
include $(RIOTMAKE)/blob.inc.mk
include $(RIOTMAKE)/tools/fixdep.inc.mk
$(BINDIR)/$(MODULE)/:
$(Q)mkdir -p $@
$(MODULE).module compile-commands $(OBJ): | $(BINDIR)/$(MODULE)/
$(MODULE).module: $(OBJ) | $(DIRS:%=ALL--%)
CXXFLAGS = $(filter-out $(CXXUWFLAGS), $(CFLAGS)) $(CXXEXFLAGS)
CCASFLAGS = $(filter-out $(CCASUWFLAGS), $(CFLAGS)) $(CCASEXFLAGS)
# compile and generate dependency info
$(OBJC_LTO): CFLAGS+=$(LTOFLAGS)
# Define dependencies for object files
OBJ_DEPS += $(RIOTBUILD_CONFIG_HEADER_C)
$(OBJC): $(BINDIR)/$(MODULE)/%.o: %.c $(OBJ_DEPS) | $(if $(SHOULD_RUN_KCONFIG),$(KCONFIG_GENERATED_AUTOCONF_HEADER_C))
$(Q)$(CCACHE) $(CC) \
-DRIOT_FILE_RELATIVE=\"$(patsubst $(RIOTBASE)/%,%,$(abspath $<))\" \
-DRIOT_FILE_NOPATH=\"$(notdir $<)\" \
$(CFLAGS) $(INCLUDES) -MQ '$@' -MD -MP -c -o $@ $(abspath $<)
ifneq (,$(SHOULD_RUN_KCONFIG))
$(Q)$(FIXDEP) $(@:.o=.d) $@ $(KCONFIG_SYNC_DIR) > $(@:.o=.tmp)
$(Q)mv $(@:.o=.tmp) $(@:.o=.d)
endif
$(GENOBJC): %.o: %.c $(OBJ_DEPS) | $(if $(SHOULD_RUN_KCONFIG),$(KCONFIG_GENERATED_AUTOCONF_HEADER_C))
$(Q) $(CCACHE) $(CC) \
-DRIOT_FILE_RELATIVE=\"$(patsubst $(RIOTBASE)/%,%,$<)\" \
-DRIOT_FILE_NOPATH=\"$(notdir $<)\" \
$(CFLAGS) $(INCLUDES) -MQ '$@' -MD -MP -c -o $@ $<
ifneq (,$(SHOULD_RUN_KCONFIG))
$(Q)$(FIXDEP) $(@:.o=.d) $@ $(KCONFIG_SYNC_DIR) > $(@:.o=.tmp)
$(Q)mv $(@:.o=.tmp) $(@:.o=.d)
endif
$(OBJCXX): $(BINDIR)/$(MODULE)/%.o: %.$(SRCXXEXT) $(OBJ_DEPS) | $(if $(SHOULD_RUN_KCONFIG),$(KCONFIG_GENERATED_AUTOCONF_HEADER_C))
$(Q)$(CCACHE) $(CXX) \
-DRIOT_FILE_RELATIVE=\"$(patsubst $(RIOTBASE)/%,%,$(abspath $<))\" \
-DRIOT_FILE_NOPATH=\"$(notdir $<)\" \
$(CXXFLAGS) $(CXXINCLUDES) $(INCLUDES) -MQ '$@' -MD -MP -c -o $@ $(abspath $<)
ifneq (,$(SHOULD_RUN_KCONFIG))
$(Q)$(FIXDEP) $(@:.o=.d) $@ $(KCONFIG_SYNC_DIR) > $(@:.o=.tmp)
$(Q)mv $(@:.o=.tmp) $(@:.o=.d)
endif
$(ASMOBJ): $(BINDIR)/$(MODULE)/%.o: %.s
$(Q)$(AS) $(ASFLAGS) -o $@ $(abspath $<)
$(ASSMOBJ): $(BINDIR)/$(MODULE)/%.o: %.S $(OBJ_DEPS) | $(if $(SHOULD_RUN_KCONFIG),$(KCONFIG_GENERATED_AUTOCONF_HEADER_C))
$(Q)$(CCAS) $(CCASFLAGS) $(INCLUDES) -MQ '$@' -MD -MP -c -o $@ $(abspath $<)
ifneq (,$(SHOULD_RUN_KCONFIG))
$(Q)$(FIXDEP) $(@:.o=.d) $@ $(KCONFIG_SYNC_DIR) > $(@:.o=.tmp)
$(Q)mv $(@:.o=.tmp) $(@:.o=.d)
endif
# pull in dependency info for *existing* .o files
# deleted header files will be silently ignored
-include $(DEP)