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LINKER_NAME = LPC1768
STARTUP_NAME = startup_LPC17xx
SYSTEM_NAME = system_LPC17xx
TARGET_BOARD = TARGET_LPC1768
TARGET_VENDOR = TARGET_NXP
TARGET_FAMILY = TARGET_LPC176X
TARGET_SPECIFIC = TARGET_MBED_LPC1768
CPU = cortex-m3
# path to the mbed library
MBED_DIR = ext
# toolchain specific
TOOLCHAIN = arm-none-eabi-
CC = $(TOOLCHAIN)gcc
CXX = $(TOOLCHAIN)g++
AS = $(TOOLCHAIN)gcc -x assembler-with-cpp
LD = $(TOOLCHAIN)gcc
OBJCP = $(TOOLCHAIN)objcopy
AR = $(TOOLCHAIN)ar
# application specific
INSTRUCTION_MODE = thumb
TARGET = mbed
TARGET_EXT = elf
LD_SCRIPT = $(MBED_DIR)/$(TARGET_BOARD)/TOOLCHAIN_GCC_ARM/$(LINKER_NAME).ld
CC_SYMBOLS = -D$(TARGET_BOARD) -DTOOLCHAIN_GCC_ARM -DNDEBUG
LIB_DIRS = $(MBED_DIR)/$(TARGET_BOARD)/TOOLCHAIN_GCC_ARM
LIBS = -lmbed -lstdc++ -lsupc++ -lm -lgcc -lc -lnosys
MBED_OBJ = $(MBED_DIR)/$(TARGET_BOARD)/TOOLCHAIN_GCC_ARM/board.o
MBED_OBJ += $(MBED_DIR)/$(TARGET_BOARD)/TOOLCHAIN_GCC_ARM/cmsis_nvic.o
MBED_OBJ += $(MBED_DIR)/$(TARGET_BOARD)/TOOLCHAIN_GCC_ARM/$(STARTUP_NAME).o
MBED_OBJ += $(MBED_DIR)/$(TARGET_BOARD)/TOOLCHAIN_GCC_ARM/retarget.o
MBED_OBJ += $(MBED_DIR)/$(TARGET_BOARD)/TOOLCHAIN_GCC_ARM/$(SYSTEM_NAME).o
ifneq ("$(wildcard $(MBED_DIR)/$(TARGET_BOARD)/TOOLCHAIN_GCC_ARM/mbed_overrides.o)","")
MBED_OBJ += $(MBED_DIR)/$(TARGET_BOARD)/TOOLCHAIN_GCC_ARM/mbed_overrides.o
endif
# directories
INC_DIRS = $(MBED_DIR) $(MBED_DIR)/$(TARGET_BOARD) $(MBED_DIR)/$(TARGET_BOARD)/TOOLCHAIN_GCC_ARM
INC_DIRS += $(MBED_DIR)/$(TARGET_BOARD)/$(TARGET_VENDOR)/$(TARGET_FAMILY)
INC_DIRS += $(MBED_DIR)/$(TARGET_BOARD)/$(TARGET_VENDOR)/$(TARGET_FAMILY)/$(TARGET_SPECIFIC)
SRC_DIRS = $(MBED_DIR) $(MBED_DIR)/$(TARGET_BOARD) $(MBED_DIR)/$(TARGET_BOARD)/TOOLCHAIN_GCC_ARM .
SRC_DIRS += $(MBED_DIR)/$(TARGET_BOARD)/$(TARGET_VENDOR)/$(TARGET_FAMILY)
SRC_DIRS += $(MBED_DIR)/$(TARGET_BOARD)/$(TARGET_VENDOR)/$(TARGET_FAMILY)/$(TARGET_SPECIFIC)
SRC_DIRS += src
# app source directories (remove comment and add more files)
#SRC_DIRS +=
OUT_DIR = build
INC_DIRS_F = -I. $(patsubst %, -I%, $(INC_DIRS))
ifeq ($(strip $(OUT_DIR)), )
OBJ_FOLDER =
else
OBJ_FOLDER = $(strip $(OUT_DIR))/
endif
COMPILER_OPTIONS = -g -ggdb -Os -Wall -fno-strict-aliasing -fno-rtti
COMPILER_OPTIONS += -ffunction-sections -fdata-sections -fno-exceptions -fno-delete-null-pointer-checks
COMPILER_OPTIONS += -fmessage-length=0 -fno-builtin -m$(INSTRUCTION_MODE)
COMPILER_OPTIONS += -mcpu=$(CPU) -MMD -MP $(CC_SYMBOLS)
DEPEND_OPTS = -MF $(OBJ_FOLDER)$(@F:.o=.d)
# Flags
CFLAGS = $(COMPILER_OPTIONS) $(DEPEND_OPTS) $(INC_DIRS_F) -std=gnu99 -c
CXXFLAGS = $(COMPILER_OPTIONS) $(DEPEND_OPTS) $(INC_DIRS_F) -std=gnu++98 -c
ASFLAGS = $(COMPILER_OPTIONS) $(INC_DIRS_F) -c
# Linker options
LD_OPTIONS = -mcpu=$(CPU) -m$(INSTRUCTION_MODE) -Os -L $(LIB_DIRS) -T $(LD_SCRIPT) $(INC_DIRS_F)
LD_OPTIONS += -specs=nano.specs
#use this if %f is used, by default it's commented
#LD_OPTIONS += -u _printf_float -u _scanf_float
LD_OPTIONS += -Wl,-Map=$(OBJ_FOLDER)$(TARGET).map,--gc-sections
OBJCPFLAGS = -O ihex
ARFLAGS = cr
RM = rm -rf
USER_OBJS =
C_SRCS =
S_SRCS =
C_OBJS =
S_OBJS =
# All source/object files inside SRC_DIRS
C_SRCS := $(foreach dir,$(SRC_DIRS),$(wildcard $(dir)/*.c))
C_OBJS := $(patsubst %.c,$(OBJ_FOLDER)%.o,$(notdir $(C_SRCS)))
CPP_SRCS := $(foreach dir,$(SRC_DIRS),$(wildcard $(dir)/*.cpp))
CPP_OBJS := $(patsubst %.cpp,$(OBJ_FOLDER)%.o,$(notdir $(CPP_SRCS)))
S_SRCS := $(foreach dir,$(SRC_DIRS),$(wildcard $(dir)/*.s))
S_OBJS := $(patsubst %.s,$(OBJ_FOLDER)%.o,$(notdir $(S_SRCS)))
VPATH := $(SRC_DIRS)
$(OBJ_FOLDER)%.o : %.c
@echo 'Building file: $(@F)'
@echo 'Invoking: MCU C Compiler'
$(CC) $(CFLAGS) $< -o $@
@echo 'Finished building: $(@F)'
@echo ' '
$(OBJ_FOLDER)%.o : %.cpp
@echo 'Building file: $(@F)'
@echo 'Invoking: MCU C++ Compiler'
$(CXX) $(CXXFLAGS) $< -o $@
@echo 'Finished building: $(@F)'
@echo ' '
$(OBJ_FOLDER)%.o : %.s
@echo 'Building file: $(@F)'
@echo 'Invoking: MCU Assembler'
$(AS) $(ASFLAGS) $< -o $@
@echo 'Finished building: $(@F)'
@echo ' '
all: create_outputdir $(OBJ_FOLDER)$(TARGET).$(TARGET_EXT) print_info
create_outputdir:
$(shell mkdir $(OBJ_FOLDER) 2>/dev/null)
# Tool invocations
$(OBJ_FOLDER)$(TARGET).$(TARGET_EXT): $(LD_SCRIPT) $(C_OBJS) $(CPP_OBJS) $(S_OBJS) $(MBED_OBJ)
@echo 'Building target: $@'
@echo 'Invoking: MCU Linker'
$(LD) $(LD_OPTIONS) $(CPP_OBJS) $(C_OBJS) $(S_OBJS) $(MBED_OBJ) $(LIBS) -o $(OBJ_FOLDER)$(TARGET).$(TARGET_EXT)
@echo 'Finished building target: $@'
@echo ' '
# Other Targets
clean:
@echo 'Removing entire out directory'
$(RM) $(TARGET).$(TARGET_EXT) $(TARGET).bin $(TARGET).map $(OBJ_FOLDER)*.* $(OBJ_FOLDER)
@echo ' '
print_info:
@echo 'Printing size'
arm-none-eabi-size --totals $(OBJ_FOLDER)$(TARGET).$(TARGET_EXT)
arm-none-eabi-objcopy -O srec $(OBJ_FOLDER)$(TARGET).$(TARGET_EXT) $(OBJ_FOLDER)$(TARGET).s19
arm-none-eabi-objcopy -O binary -v $(OBJ_FOLDER)$(TARGET).$(TARGET_EXT) $(OBJ_FOLDER)$(TARGET).bin
arm-none-eabi-objdump -D $(OBJ_FOLDER)$(TARGET).$(TARGET_EXT) > $(OBJ_FOLDER)$(TARGET).lst
arm-none-eabi-nm $(OBJ_FOLDER)$(TARGET).$(TARGET_EXT) > $(OBJ_FOLDER)$(TARGET)-symbol-table.txt
@echo ' '
.PHONY: all clean print_info
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