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DRIVERS_SECUREBOOT_DIR = drivers/secureboot
SRC_SECUREBOOT += $(addprefix $(DRIVERS_SECUREBOOT_DIR)/,\
secureboot_main.c \
)
SRC_SECUREBOOT += $(addprefix device/,\
startup_nrf9160.c \
)
SRC_SECUREBOOT += $(addprefix $(TOP)/lib/nrfx/mdk/,\
system_nrf9160.c \
)
.PHONY: secureboot clean
INC_SECUREBOOT += -I./../../lib/nrfx/mdk
INC_SECUREBOOT += -I./../../lib/cmsis/inc
MCU_SERIES = m33
CFLAGS_CORTEX_M = -mthumb -mabi=aapcs -fsingle-precision-constant -Wdouble-promotion
CFLAGS_MCU_m33 = $(CFLAGS_CORTEX_M) -mcpu=cortex-m33 -march=armv8-m.main+dsp -mcmse -mfpu=fpv5-sp-d16 -mfloat-abi=hard
CFLAGS_SECUREBOOT += -DNRF9160_XXAA
CFLAGS_SECUREBOOT += $(CFLAGS_MCU_$(MCU_SERIES))
CFLAGS_SECUREBOOT += -Wall -Werror -g -ansi -std=c11 -nostdlib $(COPT)
CFLAGS_SECUREBOOT += -fno-strict-aliasing
LD_FILES_SECUREBOOT += nrf9160_1M_256k_secure.ld common.ld
LDFLAGS_SECUREBOOT = $(CFLAGS_SECUREBOOT)
LDFLAGS_SECUREBOOT += -Xlinker -Map=$(@:.elf=.map)
LDFLAGS_SECUREBOOT += -mthumb -mabi=aapcs $(addprefix -T,$(LD_FILES_SECUREBOOT)) -L ./boards
CC = arm-none-eabi-gcc
SIZE = arm-none-eabi-size
OBJCOPY = arm-none-eabi-objcopy
LIBGCC_FILE_NAME = $(shell $(CC) $(CFLAGS_SECUREBOOT) -print-libgcc-file-name)
LIBC_FILE_NAME = $(shell $(CC) $(CFLAGS_SECUREBOOT) -print-file-name=libc.a)
LIBS_SECUREBOOT += -L $(dir $(LIBGCC_FILE_NAME)) -lgcc
LIBS_SECUREBOOT += -L $(dir $(LIBC_FILE_NAME)) -lc
$(BUILD)/secureboot.elf:
$(Q)$(CC) $(LDFLAGS_SECUREBOOT) $(SRC_SECUREBOOT) $(INC_SECUREBOOT) -O3 -o $@ $(LIBS_SECUREBOOT)
$(SIZE) $@
$(BUILD)/secureboot.hex: $(BUILD)/secureboot.elf
$(OBJCOPY) -O ihex $< $@
secureboot: $(BUILD)/secureboot.hex
@echo "Secure boot"
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