My Zephyr based application is buildable and working fine.
I followed this tutorial, trying to enable bluetooth OTA for my app:
Add DFU support to your application - Software - nRF Connect SDK guides - Nordic DevZone (nordicsemi.com)
After enabling this option:
CONFIG_BOOTLOADER_MCUBOOT=y
I met such linking error:
[250/257] Linking C executable zephyr\zephyr_prebuilt.elf FAILED: zephyr/zephyr_prebuilt.elf zephyr/zephyr_prebuilt.map cmd.exe /C "cd . && C:\Users\kradka\v1.8.0\toolchain\opt\bin\arm-none-eabi-gcc.exe zephyr/CMakeFiles/zephyr_prebuilt.dir/misc/empty_file.c.obj -o zephyr\zephyr_prebuilt.elf -Wl,-T zephyr/linker_zephyr_prebuilt.cmd -Wl,-Map=C:/Users/kradka/Desktop/neutrino-wbu/application/__nrf52832_nrf_connect__/build/mcuboot/zephyr/zephyr_prebuilt.map -Wl,--whole-archive app/libapp.a zephyr/libzephyr.a zephyr/arch/common/libarch__common.a zephyr/arch/arch/arm/core/aarch32/libarch__arm__core__aarch32.a zephyr/arch/arch/arm/core/aarch32/cortex_m/libarch__arm__core__aarch32__cortex_m.a zephyr/arch/arch/arm/core/aarch32/mpu/libarch__arm__core__aarch32__mpu.a zephyr/lib/libc/minimal/liblib__libc__minimal.a zephyr/lib/posix/liblib__posix.a zephyr/soc/arm/common/cortex_m/libsoc__arm__common__cortex_m.a zephyr/soc/arm/nordic_nrf/nrf52/libsoc__arm__nordic_nrf__nrf52.a zephyr/drivers/adc/libdrivers__adc.a zephyr/drivers/clock_control/libdrivers__clock_control.a zephyr/drivers/gpio/libdrivers__gpio.a zephyr/drivers/pwm/libdrivers__pwm.a zephyr/drivers/flash/libdrivers__flash.a zephyr/drivers/serial/libdrivers__serial.a zephyr/drivers/timer/libdrivers__timer.a modules/nrf/lib/fprotect/lib..__nrf__lib__fprotect.a modules/nrf/lib/fatal_error/lib..__nrf__lib__fatal_error.a modules/mcuboot/boot/bootutil/zephyr/libmcuboot_util.a modules/hal_nordic/nrfx/libmodules__hal_nordic__nrfx.a modules/mbedtls/libmodules__mbedtls.a modules/segger/libmodules__segger.a -Wl,--no-whole-archive zephyr/kernel/libkernel.a zephyr/CMakeFiles/offsets.dir/./arch/arm/core/offsets/offsets.c.obj -L"c:/users/kradka/v1.8.0/toolchain/opt/bin/../lib/gcc/arm-none-eabi/9.2.1/thumb/v7e-m/nofp" -LC:/Users/kradka/Desktop/neutrino-wbu/application/__nrf52832_nrf_connect__/build/mcuboot/zephyr -lgcc zephyr/arch/common/libisr_tables.a -mcpu=cortex-m4 -mthumb -mabi=aapcs -mfp16-format=ieee -Wl,--gc-sections -Wl,--build-id=none -Wl,--sort-common=descending -Wl,--sort-section=alignment -Wl,-u,_OffsetAbsSyms -Wl,-u,_ConfigAbsSyms -nostdlib -static -no-pie -Wl,-X -Wl,-N -Wl,--orphan-handling=warn && cmd.exe /C "cd /D C:\Users\kradka\Desktop\neutrino-wbu\application\__nrf52832_nrf_connect__\build\mcuboot\zephyr && C:\Users\kradka\v1.8.0\toolchain\opt\bin\cmake.exe -E echo "" c:/users/kradka/v1.8.0/toolchain/opt/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/bin/ld.exe: zephyr/drivers/adc/libdrivers__adc.a(adc_nrfx_saadc.c.obj): in function `adc_context_on_sampling_done': C:\Users\kradka\Desktop\neutrino-wbu\application\__nrf52832_nrf_connect__\build\mcuboot\zephyr\include\generated\syscalls\kernel.h:953: undefined reference to `z_impl_k_sem_give' c:/users/kradka/v1.8.0/toolchain/opt/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/bin/ld.exe: zephyr/drivers/adc/libdrivers__adc.a(adc_nrfx_saadc.c.obj): in function `k_sem_take': C:\Users\kradka\Desktop\neutrino-wbu\application\__nrf52832_nrf_connect__\build\mcuboot\zephyr\include\generated\syscalls\kernel.h:936: undefined reference to `z_impl_k_sem_take' c:/users/kradka/v1.8.0/toolchain/opt/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/bin/ld.exe: zephyr/drivers/adc/libdrivers__adc.a(adc_nrfx_saadc.c.obj): in function `k_sem_give': C:\Users\kradka\Desktop\neutrino-wbu\application\__nrf52832_nrf_connect__\build\mcuboot\zephyr\include\generated\syscalls\kernel.h:953: undefined reference to `z_impl_k_sem_give' c:/users/kradka/v1.8.0/toolchain/opt/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/bin/ld.exe: zephyr/drivers/adc/libdrivers__adc.a(adc_nrfx_saadc.c.obj): in function `k_sem_take': C:\Users\kradka\Desktop\neutrino-wbu\application\__nrf52832_nrf_connect__\build\mcuboot\zephyr\include\generated\syscalls\kernel.h:936: undefined reference to `z_impl_k_sem_take' c:/users/kradka/v1.8.0/toolchain/opt/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/bin/ld.exe: zephyr/drivers/adc/libdrivers__adc.a(adc_nrfx_saadc.c.obj): in function `k_sem_give': C:\Users\kradka\Desktop\neutrino-wbu\application\__nrf52832_nrf_connect__\build\mcuboot\zephyr\include\generated\syscalls\kernel.h:953: undefined reference to `z_impl_k_sem_give' collect2.exe: error: ld returned 1 exit status ninja: build stopped: subcommand failed.
I found some workaround, which is disabling ADC functionality in build/mcuboot/zephyr/.config but im not really sure if this solution is fine, as maybe bootloader is actually using ADC.
My issue is quite similar to this:
But my problem refers to different files and above solution does not apply.
I'm using SDK 1.8.0 and building for nrf52832.
