# This CPU implementation is using the new core/CPU interface:
export CFLAGS += -DCOREIF_NG=1

# Tell the build system that the CPU depends on the Cortex-M common files:
export USEMODULE += cortexm_common
# Export the peripheral drivers to be linked into the final binary:
export USEMODULE += periph
# all cortex MCU's use newlib as libc
export USEMODULE += newlib

# set default for CPU_MODEL
export CPU_MODEL ?= $(CPU)

# export the CPU model and architecture
MODEL = $(shell echo $(CPU_MODEL) | tr 'a-z' 'A-Z')
export CFLAGS += -DCPU_MODEL_$(MODEL)
ARCH = $(shell echo $(CPU_ARCH) | tr 'a-z-' 'A-Z_')
export CFLAGS += -DCPU_ARCH_$(ARCH)

# set the compiler specific CPU and FPU options
ifeq ($(CPU_ARCH),cortex-m4f)
# TODO: enable hard floating points for the M4F once the context save/restore
#       code is adjusted to take care of FPU registers
#export CFLAGS_FPU += -mfloat-abi=hard -mfpu=fpv4-sp-d16
export MCPU := cortex-m4
endif
CFLAGS_FPU ?= -mfloat-abi=soft
export MCPU ?= $(CPU_ARCH)

# Include CPU specific includes:
export INCLUDES += -I$(RIOTCPU)/$(CPU)/include

# Explicitly tell the linker to link the startup code.
#   Without this the interrupt vectors will not be linked correctly!
ifeq ($(COMMON_STARTUP),)
export UNDEF += $(BINDIR)cpu/vectors.o
endif

# CPU depends on the cortex-m common module, so include it:
include $(RIOTCPU)/cortexm_common/Makefile.include

# Avoid overriding the default rule:
all:

# Rule to generate assembly listings from ELF files:
%.lst: %.elf
	$(OBJDUMP) $(OBJDUMPFLAGS) $< > $@