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RIOT/Makefile.base
René Kijewski 467b41ad49 make: easifier usage of module subdirectories
Many modules have subdirectories. Often these subdirectories should only
be included under certain circumstances. Modules that use submodules
currently need to use this pattern:

```make
DIRS = …

all: $(BINDIR)$(MODULE).a
   @for i in $(DIRS) ; do $(MAKE) -C $$i ; done ;

include $(RIOTBASE)/Makefile.base

clean::
   @for i in $(DIRS) ; do $(MAKE) -C $$i clean ; done ;
```

This PR moves the `all:` and `clean::` boilerplate into `Makefile.base`.
2014-06-17 15:49:32 +02:00

57 lines
1.7 KiB
Makefile

ifeq (, $(__RIOTBUILD_FLAG))
$(error You cannot build a module on its own. Use "make" in your application's directory instead.)
endif
MODULE ?= $(shell basename $(CURDIR))
all: $(BINDIR)$(MODULE).a
@for i in $(DIRS); do $(MAKE) -C $$i || exit 1; done;
clean::
@for i in $(DIRS); do $(MAKE) -C $$i clean; done;
ASMSRC = $(wildcard *.s)
ASSMSRC = $(wildcard *.S)
ASMOBJ = $(ASMSRC:%.s=$(BINDIR)$(MODULE)/%.o)
ASMOBJ += $(ASSMSRC:%.S=$(BINDIR)$(MODULE)/%.o)
ifeq ($(strip $(SRC)),)
SRC = $(wildcard *.c)
endif
OBJ = $(SRC:%.c=$(BINDIR)$(MODULE)/%.o)
DEP = $(SRC:%.c=$(BINDIR)$(MODULE)/%.d)
GIT_STRING := $(shell git describe --always --abbrev=4 --dirty=-`hostname`)
GIT_BRANCH := $(shell git rev-parse --abbrev-ref HEAD)
ifeq ($(strip $(GIT_BRANCH)),master)
GIT_VERSION = $(GIT_STRING)
else
GIT_VERSION = $(shell echo $(GIT_STRING) $(GIT_BRANCH) | sed 's/ /-/')
endif
ifeq ($(strip $(GIT_VERSION)),)
GIT_VERSION := "UNKNOWN"
endif
export CFLAGS += -DVERSION=\"$(GIT_VERSION)\"
$(BINDIR)$(MODULE).a: $(OBJ) $(ASMOBJ)
$(AD)$(AR) -rc $(BINDIR)$(MODULE).a $(OBJ) $(ASMOBJ)
# pull in dependency info for *existing* .o files
-include $(OBJ:.o=.d)
# compile and generate dependency info,
# prepend path to dependency info file
$(BINDIR)$(MODULE)/%.o: %.c
@mkdir -p $(BINDIR)$(MODULE)
$(AD)$(CC) $(CFLAGS) $(INCLUDES) -c $*.c -o $(BINDIR)$(MODULE)/$*.o
$(AD)$(CC) $(CFLAGS) $(INCLUDES) -MM $*.c |\
sed -e "1s|^|$(BINDIR)$(MODULE)/|" > $(BINDIR)$(MODULE)/$*.d
$(BINDIR)$(MODULE)/%.o: %.s
@mkdir -p $(BINDIR)$(MODULE)
$(AD)$(AS) $(ASFLAGS) $*.s -o $(BINDIR)$(MODULE)/$*.o
$(BINDIR)$(MODULE)/%.o: %.S
@mkdir -p $(BINDIR)$(MODULE)
$(AD)$(CC) -c $(CFLAGS) $*.S -o $(BINDIR)$(MODULE)/$*.o