SDK 15 linker issue nrfx_common.ld and undefined references

Question

Hi, 
 I got some issues with migrating from SDK 14.0.0 to SDK 15.3.0 on a project that was developped from the previous developper. I have already done a lot of migration modifications. The softdevice is 6.1.1. 
 Problem looks to be about the linker... Sorry for this long detailled message coming now. Hope you will understand it otherwise I will explain if you have questions. I'm a begginer in the field.. 
 STATE : 
 In our project we have our folder "eclipse_armgcc\Tools" that contains Makefile, Makefile.common, and Makefile.windows, Makefile.posix. 
 We have our linker file ourProject.ld in the folder "eclipse_armgcc\Project " with one is defined in the makefile LINKER_SCRIPT = ourProject.ld. 
 In this linker file at the very end there is INCLUDE "nrf5x_common.ld" 
 
 I had to replace the Makefile.common that was used before with sdk13 because it called the FILE_LIST.mk which one doesn't exist anymore in sdk 15. So I replaced it with the Makefile.common from the SDK15 folder "nRF5_SDK_15.3.0_59ac345\components	oolchain\gcc", there a lot of changes then I replaced, and I just had inside the line (yellow background) like it was in the previous one :

PLATFORM_SUFFIX := $( if $( filter Windows%,$( OS )),windows,posix) 
 TOOLCHAIN_CONFIG_FILE := $( TEMPLATE_PATH ) /Makefile. $( PLATFORM_SUFFIX ) 
 TEMPLATE_PATH := ../../../../nRF5_SDK_15.3.0_59ac345/components/toolchain/gcc 
 include $( TOOLCHAIN_CONFIG_FILE )

Here below is my makefile configuration, I have tried two differents configuration which are colored background below (orange and green). 
 
 ================================================================================================ # Libraries common to all targets LIB_FILES += \ $(SDK_ROOT)/components/nfc/t2t_lib/nfc_t2t_lib_gcc.a \ $(SDK_ROOT)/components/toolchain/cmsis/dsp/GCC/libarm_cortexM4lf_math.a \ 
 # C flags common to all targets CFLAGS += -DBLE_STACK_SUPPORT_REQD CFLAGS += -DCONFIG_GPIO_AS_PINRESET CFLAGS += -DNRF52 CFLAGS += -DFREERTOS CFLAGS += -DNRF52832_XXAA CFLAGS += -DNRF52_PAN_12 CFLAGS += -DNRF52_PAN_15 CFLAGS += -DNRF52_PAN_20 CFLAGS += -DNRF52_PAN_31 CFLAGS += -DNRF52_PAN_36 CFLAGS += -DNRF52_PAN_51 CFLAGS += -DNRF52_PAN_54 CFLAGS += -DNRF52_PAN_55 CFLAGS += -DNRF52_PAN_58 CFLAGS += -DNRF52_PAN_64 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 += -DNRF_LOG_USES_RTT=1 CFLAGS += -DSWI_DISABLE0 CFLAGS += -DARM_MATH_CM4 CFLAGS += -D__HEAP_SIZE=1024 -D__STACK_SIZE=2048 CFLAGS += -mcpu=cortex-m4 CFLAGS += -mthumb -mabi=aapcs CFLAGS += -Wall -Werror -O3 -g3 -Wfatal-errors CFLAGS += -Wno-error=misleading-indentation -Wno-error=unused-variable CFLAGS += -Wno-error=unused-function -Wno-error=unused-but-set-variable -Wno-error=implicit-function-declaration -Wno-error=pointer-compare CFLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16 # keep every function in separate section, this allows linker to discard unused ones CFLAGS += -ffunction-sections -fdata-sections -fno-strict-aliasing CFLAGS += -fno-builtin --short-enums 
 DEPS += $(PROJECT_SOURCE_DIR)/Application/config/ffconf.h \ 
 # C++ flags common to all targets CXXFLAGS += \ 
 # Assembler flags common to all targets ASMFLAGS += -x assembler-with-cpp -g3 ASMFLAGS += -DBLE_STACK_SUPPORT_REQD ASMFLAGS += -DCONFIG_GPIO_AS_PINRESET ASMFLAGS += -DNRF52 ASMFLAGS += -DFREERTOS ASMFLAGS += -DNRF52832_XXAA ASMFLAGS += -DNRF52_PAN_12 ASMFLAGS += -DNRF52_PAN_15 ASMFLAGS += -DNRF52_PAN_20 ASMFLAGS += -DNRF52_PAN_31 ASMFLAGS += -DNRF52_PAN_36 ASMFLAGS += -DNRF52_PAN_51 ASMFLAGS += -DNRF52_PAN_54 ASMFLAGS += -DNRF52_PAN_55 ASMFLAGS += -DNRF52_PAN_58 ASMFLAGS += -DNRF52_PAN_64 ASMFLAGS += -DNRF52_PAN_74 ASMFLAGS += -DNRF_DFU_SVCI_ENABLED ASMFLAGS += -DNRF_DFU_TRANSPORT_BLE=1 ASMFLAGS += -DNRF_SD_BLE_API_VERSION=6 ASMFLAGS += -DS132 ASMFLAGS += -DSOFTDEVICE_PRESENT ASMFLAGS += -DNRF_LOG_USES_RTT=1 ASMFLAGS += -DSWI_DISABLE0 ASMFLAGS += -DARM_MATH_CM4 ASMFLAGS += -D__HEAP_SIZE=1024 -D__STACK_SIZE=2048 
 # Linker flags #LDFLAGS += -mthumb -mabi=aapcs -L$(TEMPLATE_PATH) -T$(LINKER_SCRIPT) LDFLAGS += -mthumb -mabi=aapcs -L$(SDK_ROOT)/modules/nrfx/mdk -T$(LINKER_SCRIPT) LDFLAGS += -mcpu=cortex-m4 LDFLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16 # let linker to dump unused sections LDFLAGS += -Wl,--gc-sections # use newlib in nano version LDFLAGS += --specs=nano.specs 
 # 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: $(TARGETS) default all clean help flash flash_softdevice 
 # Default target - first one defined default: nrf52832_xxaa 
 # Print all targets that can be built help: @echo following targets are available: @echo nrf52832_xxaa 
 LINKER_SCRIPT := ourProject.ld TEMPLATE_PATH := ../Tools 
 include $(TEMPLATE_PATH)/Makefile.common 
 $(foreach target, $(TARGETS), $(call define_target, $(target))) 
 # Flash the program flash: $(OUTPUT_DIRECTORY)/nrf52832_xxaa.hex @echo Flashing: $< nrfjprog --program $< -f nrf52 --sectorerase nrfjprog --reset -f nrf52 
 # Flash softdevice flash_softdevice: @echo Flashing: s132_nrf52_6.1.1_softdevice.hex nrfjprog --program $(SDK_ROOT)/components/softdevice/s132/hex/s132_nrf52_6.1.1_softdevice.hex -f nrf52 --sectorerase nrfjprog --reset -f nrf52 
 erase: nrfjprog --eraseall -f nrf52 
 
 ============================================================================== 
 The orange one give me a lot of undefine reference (181 errors). 
 The green one give me this error : 
 Linking target: _build/nrf52832_xxaa.out "make" -s --no-print-directory -f "../../../../nRF5_SDK_15.3.0_59ac345/components/toolchain/gcc/dump.mk" VARIABLE=CONTENT_TO_DUMP > _build/nrf52832_xxaa.in 'C:/Program Files (x86)/GNU Tools ARM Embedded/7 2018-q2-update/bin/arm-none-eabi-gcc' -mthumb -mabi=aapcs -L../../../../nRF5_SDK_15.3.0_59ac345/components/toolchain/gcc -Tkassius.ld -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 -Wl,--gc-sections --specs=nano.specs @_build/nrf52832_xxaa.in -Wl,-Map=_build/nrf52832_xxaa.map -o _build/nrf52832_xxaa.out c:/program files (x86)/gnu tools arm embedded/7 2018-q2-update/bin/../lib/gcc/arm-none-eabi/7.3.1/../../../../arm-none-eabi/bin/ld.exe: cannot open linker script file nrf5x_common.ld: No such file or directory collect2.exe: error: ld returned 1 exit status 
 Of course there is no more nrf5x_common.ld in the folder of gcc (TEMPLATE_PATH). It is in the folder mdk now. 
 
 So it looks that I should add some libraries paths or something like that in the makefile or modifying something in the Makefile.common... ? 
 Thank you a lot in advance for your help. 
 
 Best regards, 
 Alan

Lenan · Accepted Answer

Thank you Jorgen, it builds now. Actually yes it missed a lot of sources files for "sub-functions" and so the enabling of some modules also in sdk_config. 
 
 Best regards, 
 Alan