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Makefile improvement

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- root must be assigned when declared - with :=
- add autodependecy generation
This commit is contained in:
Petr Ledvina 2014-10-23 14:10:45 +02:00
parent fd32ad6fcb
commit 091941cd82
1 changed files with 16 additions and 8 deletions
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24
Makefile
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@ -43,7 +43,7 @@ OPBL_VALID_TARGETS = CC3D
REVISION = $(shell git log -1 --format="%h")
# Working directories
ROOT = $(dir $(lastword $(MAKEFILE_LIST)))
ROOT := $(patsubst %/,%,$(dir $(lastword $(MAKEFILE_LIST))))
SRC_DIR = $(ROOT)/src/main
OBJECT_DIR = $(ROOT)/obj/main
BIN_DIR = $(ROOT)/obj
@ -412,11 +412,10 @@ CHEBUZZF3_SRC = $(STM32F3DISCOVERY_SRC) \
MASSIVEF3_SRC = $(STM32F3DISCOVERY_SRC) \
$(HIGHEND_SRC) \
$(COMMON_SRC)
ifeq ($(TARGET),MASSIVEF3)
LD_SCRIPT = $(LINKER_DIR)/stm32_flash_f303_128k.ld
endif
# Search path and source files for the ST stdperiph library
VPATH := $(VPATH):$(STDPERIPH_DIR)/src
@ -459,12 +458,13 @@ CFLAGS = $(ARCH_FLAGS) \
-D'__FORKNAME__="$(FORKNAME)"' \
-D'__TARGET__="$(TARGET)"' \
-D'__REVISION__="$(REVISION)"' \
-save-temps=obj
-save-temps=obj \
-MD
ASFLAGS = $(ARCH_FLAGS) \
-x assembler-with-cpp \
$(addprefix -I,$(INCLUDE_DIRS))
$(addprefix -I,$(INCLUDE_DIRS)) \
-MD
LDFLAGS = -lm \
-nostartfiles \
@ -493,7 +493,8 @@ TARGET_BIN = $(BIN_DIR)/$(FORKNAME)_$(TARGET).bin
TARGET_HEX = $(BIN_DIR)/$(FORKNAME)_$(TARGET).hex
TARGET_ELF = $(OBJECT_DIR)/$(FORKNAME)_$(TARGET).elf
TARGET_OBJS = $(addsuffix .o,$(addprefix $(OBJECT_DIR)/$(TARGET)/,$(basename $($(TARGET)_SRC))))
TARGET_MAP = $(OBJECT_DIR)/$(FORKNAME)_$(TARGET).map
TARGET_DEPS = $(addsuffix .d,$(addprefix $(OBJECT_DIR)/$(TARGET)/,$(basename $($(TARGET)_SRC))))
TARGET_MAP = $(OBJECT_DIR)/$(FORKNAME)_$(TARGET).map
# List of buildable ELF files and their object dependencies.
# It would be nice to compute these lists, but that seems to be just beyond make.
@ -518,7 +519,8 @@ $(OBJECT_DIR)/$(TARGET)/%.o: %.c
$(OBJECT_DIR)/$(TARGET)/%.o: %.s
@mkdir -p $(dir $@)
@echo %% $(notdir $<)
@$(CC) -c -o $@ $(ASFLAGS) $<
@$(CC) -c -o $@ $(ASFLAGS) $<
$(OBJECT_DIR)/$(TARGET)/%.o: %.S
@mkdir -p $(dir $@)
@echo %% $(notdir $<)
@ -552,3 +554,9 @@ help:
@echo ""
@echo "Valid TARGET values are: $(VALID_TARGETS)"
@echo ""
# rebuild everything when makefile changes
$(TARGET_OBJS) : Makefile
# include auto-generated dependencies
-include $(TARGET_DEPS)