Hello,
I am trying to compile my project, which includes a library file (.a). I get multiple errors about "undefined reference". See image:
.a-file in project tree (from same folder as the make-file's linking):
I have a makefile that works:
PROJECT_NAME := ble_app_buttonless_dfu_pca10040_s132 TARGETS := nrf52832_xxaa OUTPUT_DIRECTORY := build SDK_ROOT := ../nRF5_SDK_15.0.0_a53641a PROJ_DIR := . $(OUTPUT_DIRECTORY)/nrf52832_xxaa.out: \ LINKER_SCRIPT := ble_app_buttonless_dfu_gcc_nrf52.ld # Source files common to all targets SRC_FILES += \ $(PROJ_DIR)/src/main.c \ $(SDK_ROOT)/modules/nrfx/mdk/gcc_startup_nrf52.S \ $(SDK_ROOT)/components/libraries/experimental_log/src/nrf_log_backend_rtt.c \ $(SDK_ROOT)/components/libraries/experimental_log/src/nrf_log_backend_serial.c \ $(SDK_ROOT)/components/libraries/experimental_log/src/nrf_log_backend_uart.c \ $(SDK_ROOT)/components/libraries/experimental_log/src/nrf_log_default_backends.c \ $(SDK_ROOT)/components/libraries/experimental_log/src/nrf_log_frontend.c \ $(SDK_ROOT)/components/libraries/experimental_log/src/nrf_log_str_formatter.c \ $(SDK_ROOT)/components/boards/boards.c \ $(SDK_ROOT)/modules/nrfx/mdk/system_nrf52.c \ $(SDK_ROOT)/components/libraries/button/app_button.c \ $(SDK_ROOT)/components/libraries/util/app_error.c \ $(SDK_ROOT)/components/libraries/util/app_error_handler_gcc.c \ $(SDK_ROOT)/components/libraries/util/app_error_weak.c \ $(SDK_ROOT)/components/libraries/scheduler/app_scheduler.c \ $(SDK_ROOT)/components/libraries/timer/app_timer.c \ $(SDK_ROOT)/components/libraries/util/app_util_platform.c \ $(SDK_ROOT)/components/libraries/crc16/crc16.c \ $(SDK_ROOT)/components/libraries/fds/fds.c \ $(SDK_ROOT)/components/libraries/util/nrf_assert.c \ $(SDK_ROOT)/components/libraries/atomic_fifo/nrf_atfifo.c \ $(SDK_ROOT)/components/libraries/atomic_flags/nrf_atflags.c \ $(SDK_ROOT)/components/libraries/atomic/nrf_atomic.c \ $(SDK_ROOT)/components/libraries/balloc/nrf_balloc.c \ $(SDK_ROOT)/external/fprintf/nrf_fprintf.c \ $(SDK_ROOT)/external/fprintf/nrf_fprintf_format.c \ $(SDK_ROOT)/components/libraries/fstorage/nrf_fstorage.c \ $(SDK_ROOT)/components/libraries/fstorage/nrf_fstorage_sd.c \ $(SDK_ROOT)/components/libraries/experimental_memobj/nrf_memobj.c \ $(SDK_ROOT)/components/libraries/pwr_mgmt/nrf_pwr_mgmt.c \ $(SDK_ROOT)/components/libraries/experimental_section_vars/nrf_section_iter.c \ $(SDK_ROOT)/components/libraries/strerror/nrf_strerror.c \ $(SDK_ROOT)/integration/nrfx/legacy/nrf_drv_clock.c \ $(SDK_ROOT)/integration/nrfx/legacy/nrf_drv_uart.c \ $(SDK_ROOT)/integration/nrfx/legacy/nrf_drv_twi.c \ $(SDK_ROOT)/modules/nrfx/drivers/src/nrfx_clock.c \ $(SDK_ROOT)/modules/nrfx/drivers/src/nrfx_gpiote.c \ $(SDK_ROOT)/modules/nrfx/drivers/src/nrfx_power_clock.c \ $(SDK_ROOT)/modules/nrfx/drivers/src/prs/nrfx_prs.c \ $(SDK_ROOT)/modules/nrfx/drivers/src/nrfx_uart.c \ $(SDK_ROOT)/modules/nrfx/drivers/src/nrfx_uarte.c \ $(SDK_ROOT)/modules/nrfx/drivers/src/nrfx_twi.c \ $(SDK_ROOT)/modules/nrfx/drivers/src/nrfx_twim.c \ $(SDK_ROOT)/components/libraries/bsp/bsp.c \ $(SDK_ROOT)/components/libraries/bsp/bsp_btn_ble.c \ $(SDK_ROOT)/components/libraries/bootloader/dfu/nrf_dfu_svci.c \ $(SDK_ROOT)/external/segger_rtt/SEGGER_RTT.c \ $(SDK_ROOT)/external/segger_rtt/SEGGER_RTT_Syscalls_GCC.c \ $(SDK_ROOT)/external/segger_rtt/SEGGER_RTT_printf.c \ $(SDK_ROOT)/components/ble/common/ble_advdata.c \ $(SDK_ROOT)/components/ble/ble_advertising/ble_advertising.c \ $(SDK_ROOT)/components/ble/common/ble_conn_params.c \ $(SDK_ROOT)/components/ble/common/ble_conn_state.c \ $(SDK_ROOT)/components/ble/common/ble_srv_common.c \ $(SDK_ROOT)/components/ble/ble_link_ctx_manager/ble_link_ctx_manager.c \ $(SDK_ROOT)/components/ble/peer_manager/gatt_cache_manager.c \ $(SDK_ROOT)/components/ble/peer_manager/gatts_cache_manager.c \ $(SDK_ROOT)/components/ble/peer_manager/id_manager.c \ $(SDK_ROOT)/components/ble/nrf_ble_gatt/nrf_ble_gatt.c \ $(SDK_ROOT)/components/ble/nrf_ble_qwr/nrf_ble_qwr.c \ $(SDK_ROOT)/components/ble/peer_manager/peer_data_storage.c \ $(SDK_ROOT)/components/ble/peer_manager/peer_database.c \ $(SDK_ROOT)/components/ble/peer_manager/peer_id.c \ $(SDK_ROOT)/components/ble/peer_manager/peer_manager.c \ $(SDK_ROOT)/components/ble/peer_manager/pm_buffer.c \ $(SDK_ROOT)/components/ble/peer_manager/pm_mutex.c \ $(SDK_ROOT)/components/ble/peer_manager/security_dispatcher.c \ $(SDK_ROOT)/components/ble/peer_manager/security_manager.c \ $(SDK_ROOT)/components/ble/ble_services/ble_dfu/ble_dfu.c \ $(SDK_ROOT)/components/ble/ble_services/ble_dfu/ble_dfu_bonded.c \ $(SDK_ROOT)/components/ble/ble_services/ble_dfu/ble_dfu_unbonded.c \ $(SDK_ROOT)/components/softdevice/common/nrf_sdh.c \ $(SDK_ROOT)/components/softdevice/common/nrf_sdh_ble.c \ $(SDK_ROOT)/components/softdevice/common/nrf_sdh_soc.c \ # Include folders common to all targets INC_FOLDERS += \ $(PROJ_DIR)/config \ $(PROJ_DIR)/include \ $(SDK_ROOT)/components \ $(SDK_ROOT)/modules/nrfx/mdk \ $(SDK_ROOT)/components/libraries/scheduler \ $(SDK_ROOT)/modules/nrfx \ $(SDK_ROOT)/components/libraries/experimental_log \ $(SDK_ROOT)/components/toolchain/cmsis/include \ $(SDK_ROOT)/components/libraries/pwr_mgmt \ $(SDK_ROOT)/components/libraries/strerror \ $(SDK_ROOT)/components/softdevice/common \ $(SDK_ROOT)/components/libraries/crc16 \ $(SDK_ROOT)/components/libraries/bootloader/dfu \ $(SDK_ROOT)/components/softdevice/s132/headers/nrf52 \ $(SDK_ROOT)/components/libraries/util \ $(SDK_ROOT)/components/ble/common \ $(SDK_ROOT)/components/ble/ble_link_ctx_manager \ $(SDK_ROOT)/components/libraries/balloc \ $(SDK_ROOT)/components/ble/peer_manager \ $(SDK_ROOT)/modules/nrfx/hal \ $(SDK_ROOT)/components/libraries/bsp \ $(SDK_ROOT)/components/libraries/timer \ $(SDK_ROOT)/external/segger_rtt \ $(SDK_ROOT)/components/ble/nrf_ble_gatt \ $(SDK_ROOT)/components/ble/nrf_ble_qwr \ $(SDK_ROOT)/components/libraries/button \ $(SDK_ROOT)/components/libraries/bootloader \ $(SDK_ROOT)/components/libraries/fstorage \ $(SDK_ROOT)/components/libraries/experimental_section_vars \ $(SDK_ROOT)/components/softdevice/s132/headers \ $(SDK_ROOT)/integration/nrfx/legacy \ $(SDK_ROOT)/components/libraries/mutex \ $(SDK_ROOT)/components/libraries/experimental_log/src \ $(SDK_ROOT)/components/libraries/delay \ $(SDK_ROOT)/components/libraries/bootloader/ble_dfu \ $(SDK_ROOT)/components/libraries/atomic_fifo \ $(SDK_ROOT)/components/libraries/atomic \ $(SDK_ROOT)/components/boards \ $(SDK_ROOT)/components/libraries/experimental_memobj \ $(SDK_ROOT)/integration/nrfx \ $(SDK_ROOT)/components/libraries/fds \ $(SDK_ROOT)/components/ble/ble_advertising \ $(SDK_ROOT)/components/libraries/atomic_flags \ $(SDK_ROOT)/modules/nrfx/drivers/include \ $(SDK_ROOT)/components/ble/ble_services/ble_dfu \ $(SDK_ROOT)/external/fprintf \ $(SDK_ROOT)/components/libraries/svc \ # Libraries common to all targets LIB_FILES += -L/usr/local/lib -lsodium # Optimization flags OPT = -O3 -g3 # Uncomment the line below to enable link time optimization #OPT += -flto # C flags common to all targets CFLAGS += $(OPT) CFLAGS += -I/usr/local/include CFLAGS += -DBL_SETTINGS_ACCESS_ONLY CFLAGS += -DBOARD_PCA10040 CFLAGS += -DCONFIG_GPIO_AS_PINRESET CFLAGS += -DCONFIG_NFCT_PINS_AS_GPIOS CFLAGS += -DFLOAT_ABI_HARD CFLAGS += -DNRF52 CFLAGS += -DNRF52832_XXAA CFLAGS += -DNRF52_PAN_74 CFLAGS += -DNRF_DFU_SVCI_ENABLED CFLAGS += -DNRF_DFU_TRANSPORT_BLE=1 CFLAGS += -DNRF_SD_BLE_API_VERSION=6 CFLAGS += -DS132 CFLAGS += -DSOFTDEVICE_PRESENT CFLAGS += -DSWI_DISABLE0 CFLAGS += -mcpu=cortex-m4 CFLAGS += -mthumb -mabi=aapcs CFLAGS += -Wall -Werror -Wno-unused-function CFLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16 # keep every function in a separate section, this allows linker to discard unused ones CFLAGS += -ffunction-sections -fdata-sections -fno-strict-aliasing CFLAGS += -fno-builtin -fshort-enums # C++ flags common to all targets CXXFLAGS += $(OPT) # Assembler flags common to all targets ASMFLAGS += -g3 ASMFLAGS += -mcpu=cortex-m4 ASMFLAGS += -mthumb -mabi=aapcs ASMFLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16 ASMFLAGS += -DBL_SETTINGS_ACCESS_ONLY ASMFLAGS += -DBOARD_PCA10040 ASMFLAGS += -DCONFIG_GPIO_AS_PINRESET ASMFLAGS += -DCONFIG_NFCT_PINS_AS_GPIOS ASMFLAGS += -DFLOAT_ABI_HARD ASMFLAGS += -DNRF52 ASMFLAGS += -DNRF52832_XXAA ASMFLAGS += -DNRF52_PAN_74 ASMFLAGS += -DNRF_DFU_SVCI_ENABLED ASMFLAGS += -DNRF_DFU_TRANSPORT_BLE=1 ASMFLAGS += -DNRF_SD_BLE_API_VERSION=6 ASMFLAGS += -DS132 ASMFLAGS += -DSOFTDEVICE_PRESENT ASMFLAGS += -DSWI_DISABLE0 # Linker flags LDFLAGS += $(OPT) LDFLAGS += -mthumb -mabi=aapcs -L$(SDK_ROOT)/modules/nrfx/mdk -T$(LINKER_SCRIPT) LDFLAGS += -mcpu=cortex-m4 LDFLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16 # let linker dump unused sections LDFLAGS += -Wl,--gc-sections # use newlib in nano version LDFLAGS += --specs=nano.specs nrf52832_xxaa: CFLAGS += -D__HEAP_SIZE=8192 nrf52832_xxaa: CFLAGS += -D__STACK_SIZE=8192 nrf52832_xxaa: ASMFLAGS += -D__HEAP_SIZE=8192 nrf52832_xxaa: ASMFLAGS += -D__STACK_SIZE=8192 # Add standard libraries at the very end of the linker input, after all objects # that may need symbols provided by these libraries. LIB_FILES += -lc -lnosys -lm .PHONY: default help # Default target - first one defined default: nrf52832_xxaa # Print all targets that can be built help: @echo following targets are available: @echo nrf52832_xxaa @echo flash_softdevice @echo sdk_config - starting external tool for editing sdk_config.h @echo flash - flashing binary TEMPLATE_PATH := $(SDK_ROOT)/components/toolchain/gcc include $(TEMPLATE_PATH)/Makefile.common $(foreach target, $(TARGETS), $(call define_target, $(target))) .PHONY: flash # Flash the program flash: $(OUTPUT_DIRECTORY)/nrf52832_xxaa.hex @echo Flashing: $< nrfjprog -f nrf52 --program $< --sectorerase nrfjprog -f nrf52 --reset # Override linking to remove rtt section $(OUTPUT_DIRECTORY)/nrf52832_xxaa.out: $(info $(call PROGRESS,Linking target: $@)) $(NO_ECHO)$(GENERATE_LD_INPUT_FILE) $(NO_ECHO)$(CC) $(LDFLAGS) $(LD_INPUT) -Wl,-Map=$(@:.out=.map) -o $@ $(NO_ECHO)$(OBJCOPY) -R .rtt $@ $(NO_ECHO)$(SIZE) $@
But I want to use Segger Embedded Studio, not the make-file.
I suspect I am not providing the correct flags to the linker or whats the issue?
Thanks in advance!
