[395/402] Linking C executable zephyr\zephyr_pre0.elf FAILED: ... ... collect2.exe: error: ld returned 1 exit status ninja: build stopped: subcommand failed.

[Hannes_K]

Hello Team, I'm trying to use the implement some WolfSSL extensions into my project and get errors while building it.

Preinformation:

I installed the SDK v2.7.0 using the nrf Connect for Desktop application.

Furthermore installed the WolfSSL extension using the guide from Github WolfSSL Zephyr .

The base code is from the DECT sample dect_phy, with some adjustments adding the UART, which is working fine.

Addingin functions from WolfSSL results in errors while building it as follows.

Error: (line 3 and 4 are "..." because I couldn't insert that part of the error due to not being able to post it)

[395/402] Linking C executable zephyr\zephyr_pre0.elf
FAILED: zephyr/zephyr_pre0.elf.zephyr/zephyr_pre0.map C:/ncs/v2.7.0/BA/v1.7/build/zephyr/zephyr_pre0.map
...
...
&& C:\ncs\toolchains\ce3b5ff664\opt\bin\cmake.exe -E true""
modules/nrf/lib/nrf_modem_lib/lib..__nrf__lib__nrf_modem_lib.a(nrf91_sockets.c.obj): in function `nrf91_socket_offload_setsockopt':
C:/ncs/v2.7.0/nrf/lib/nrf_modem_lib/nrf91_sockets.c:532: undefined reference to `nrf_setsockopt'
c:/ncs/toolchains/ce3b5ff664/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/../../../../arm-zephyr-eabi/bin/ld.bfd.exe:
modules/nrf/lib/nrf_modem_lib/lib..__nrf__lib__nrf_modem_lib.a(nrf91_sockets.c.obj): in function `nrf91_socket_offload_getsockopt':
C:/ncs/v2.7.0/nrf/lib/nrf_modem_lib/nrf91_sockets.c:561: undefined reference to `nrf_getsockopt'
c:/ncs/toolchains/ce3b5ff664/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/../../../../arm-zephyr-eabi/bin/ld.bfd.exe:
modules/nrf/lib/nrf_modem_lib/lib..__nrf__lib__nrf_modem_lib.a(nrf91_sockets.c.obj): in function `nrf91_socket_offload_listen':
C:/ncs/v2.7.0/nrf/lib/nrf_modem_lib/nrf91_sockets.c:463: undefined reference to `nrf_listen'
c:/ncs/toolchains/ce3b5ff664/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/../../../../arm-zephyr-eabi/bin/ld.bfd.exe:
modules/nrf/lib/nrf_modem_lib/lib..__nrf__lib__nrf_modem_lib.a(nrf91_sockets.c.obj): in function `nrf91_socket_offload_sendto':
C:/ncs/v2.7.0/nrf/lib/nrf_modem_lib/nrf91_sockets.c:659: undefined reference to `nrf_sendto'
c:/ncs/toolchains/ce3b5ff664/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/../../../../arm-zephyr-eabi/bin/ld.bfd.exe:
modules/nrf/lib/nrf_modem_lib/lib..__nrf__lib__nrf_modem_lib.a(nrf91_sockets.c.obj): in function `nrf91_socket_offload_recvfrom':
C:/ncs/v2.7.0/nrf/lib/nrf_modem_lib/nrf91_sockets.c:605: undefined reference to `nrf_recvfrom'
c:/ncs/toolchains/ce3b5ff664/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/../../../../arm-zephyr-eabi/bin/ld.bfd.exe:
C:/ncs/v2.7.0/nrf/lib/nrf_modem_lib/nrf91_sockets.c:612: undefined reference to `nrf_recvfrom'
c:/ncs/toolchains/ce3b5ff664/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/../../../../arm-zephyr-eabi/bin/ld.bfd.exe:
modules/nrf/lib/nrf_modem_lib/lib..__nrf__lib__nrf_modem_lib.a(nrf91_sockets.c.obj): in function `nrf91_socket_offload_close':
C:/ncs/v2.7.0/nrf/lib/nrf_modem_lib/nrf91_sockets.c:1024: undefined reference to `nrf_close'
c:/ncs/toolchains/ce3b5ff664/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/../../../../arm-zephyr-eabi/bin/ld.bfd.exe:
modules/nrf/lib/nrf_modem_lib/lib..__nrf__lib__nrf_modem_lib.a(nrf91_sockets.c.obj): in function `nrf91_poll_prepare':
C:/ncs/v2.7.0/nrf/lib/nrf_modem_lib/nrf91_sockets.c:920: undefined reference to `nrf_setsockopt'
c:/ncs/toolchains/ce3b5ff664/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/../../../../arm-zephyr-eabi/bin/ld.bfd.exe:
modules/nrf/lib/nrf_modem_lib/lib..__nrf__lib__nrf_modem_lib.a(nrf91_sockets.c.obj): in function `nrf91_socket_offload_fcntl':
C:/ncs/v2.7.0/nrf/lib/nrf_modem_lib/nrf91_sockets.c:862: undefined reference to `nrf_fcntl'
c:/ncs/toolchains/ce3b5ff664/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/../../../../arm-zephyr-eabi/bin/ld.bfd.exe:
C:/ncs/v2.7.0/nrf/lib/nrf_modem_lib/nrf91_sockets.c:858: undefined reference to `nrf_fcntl'
c:/ncs/toolchains/ce3b5ff664/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/../../../../arm-zephyr-eabi/bin/ld.bfd.exe:
modules/nrf/lib/nrf_modem_lib/lib..__nrf__lib__nrf_modem_lib.a(nrf91_sockets.c.obj): in function `nrf91_socket_offload_socket':
C:/ncs/v2.7.0/nrf/lib/nrf_modem_lib/nrf91_sockets.c:350: undefined reference to `nrf_socket'
c:/ncs/toolchains/ce3b5ff664/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/../../../../arm-zephyr-eabi/bin/ld.bfd.exe:
modules/nrf/lib/nrf_modem_lib/lib..__nrf__lib__nrf_modem_lib.a(nrf91_sockets.c.obj): in function `nrf91_socket_create':
C:/ncs/v2.7.0/nrf/lib/nrf_modem_lib/nrf91_sockets.c:1117: undefined reference to `nrf_close'
c:/ncs/toolchains/ce3b5ff664/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/../../../../arm-zephyr-eabi/bin/ld.bfd.exe:
modules/nrf/lib/nrf_modem_lib/lib..__nrf__lib__nrf_modem_lib.a(nrf91_sockets.c.obj): in function `nrf91_socket_offload_getaddrinfo':
C:/ncs/v2.7.0/nrf/lib/nrf_modem_lib/nrf91_sockets.c:790: undefined reference to `nrf_getaddrinfo'
c:/ncs/toolchains/ce3b5ff664/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/../../../../arm-zephyr-eabi/bin/ld.bfd.exe:
C:/ncs/v2.7.0/nrf/lib/nrf_modem_lib/nrf91_sockets.c:835: undefined reference to `nrf_freeaddrinfo'
c:/ncs/toolchains/ce3b5ff664/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/../../../../arm-zephyr-eabi/bin/ld.bfd.exe:
modules/nrf/lib/nrf_modem_lib/lib..__nrf__lib__nrf_modem_lib.a(nrf91_sockets.c.obj): in function `nrf91_socket_offload_accept':
C:/ncs/v2.7.0/nrf/lib/nrf_modem_lib/nrf91_sockets.c:388: undefined reference to `nrf_accept'
c:/ncs/toolchains/ce3b5ff664/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/../../../../arm-zephyr-eabi/bin/ld.bfd.exe:
C:/ncs/v2.7.0/nrf/lib/nrf_modem_lib/nrf91_sockets.c:422: undefined reference to `nrf_close'
c:/ncs/toolchains/ce3b5ff664/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/../../../../arm-zephyr-eabi/bin/ld.bfd.exe:
C:/ncs/v2.7.0/nrf/lib/nrf_modem_lib/nrf91_sockets.c:422: undefined reference to `nrf_close'
c:/ncs/toolchains/ce3b5ff664/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/../../../../arm-zephyr-eabi/bin/ld.bfd.exe:
modules/nrf/lib/nrf_modem_lib/lib..__nrf__lib__nrf_modem_lib.a(nrf91_sockets.c.obj): in function `nrf91_socket_offload_bind':
C:/ncs/v2.7.0/nrf/lib/nrf_modem_lib/nrf91_sockets.c:449: undefined reference to `nrf_bind'
c:/ncs/toolchains/ce3b5ff664/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/../../../../arm-zephyr-eabi/bin/ld.bfd.exe:
modules/nrf/lib/nrf_modem_lib/lib..__nrf__lib__nrf_modem_lib.a(nrf91_sockets.c.obj): in function `nrf91_socket_offload_connect':
C:/ncs/v2.7.0/nrf/lib/nrf_modem_lib/nrf91_sockets.c:482: undefined reference to `nrf_connect'
c:/ncs/toolchains/ce3b5ff664/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/../../../../arm-zephyr-eabi/bin/ld.bfd.exe:
C:/ncs/v2.7.0/nrf/lib/nrf_modem_lib/nrf91_sockets.c:486: undefined reference to `nrf_connect'
collect2.exe: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.
FATAL ERROR: command exited with status 1: 'C:\ncs\toolchains\ce3b5ff664\opt\bin\cmake.EXE' --build 'c:\ncs\v2.7.0\BA\v1.7\build'

prj.conf 

# -----------------------------------------------------------------------------
# Config for Zephyr with DECT NR+ and UART
# -----------------------------------------------------------------------------

# Enable DECT NR+ PHY
CONFIG_NRF_MODEM_LIB=y
CONFIG_MODEM_ANTENNA=n
CONFIG_NRF_MODEM_LINK_BINARY_DECT_PHY=y

# Enable logging and hardware info
CONFIG_HWINFO=y
CONFIG_LOG=y
CONFIG_PRINTK=y
CONFIG_LOG_MODE_IMMEDIATE=y

# Enable UART
CONFIG_UART_INTERRUPT_DRIVEN=y

# to enable the random number generator for WolfSSL
CONFIG_ENTROPY_GENERATOR=y
CONFIG_ENTROPY_DEVICE_RANDOM_GENERATOR=y

# -----------------------------------------------------------------------------
# Added Configurations for the WolfSSL
# -----------------------------------------------------------------------------

# WolfSSL configuration
CONFIG_WOLFSSL=y
CONFIG_WOLFSSL_DTLS=y
CONFIG_WOLFSSL_TLS_VERSION_1_3=y

CONFIG_NETWORKING=y
CONFIG_NET_SOCKETS=y

CONFIG_POSIX_API=y
# CONFIG_NET_SOCKETS_POSIX_NAMES=y

CONFIG_FILE_SYSTEM=y
CONFIG_FAT_FILESYSTEM_ELM=y
CONFIG_POSIX_CLOCK=y

CmakeLists.txt

cmake_minimum_required(VERSION 3.20.0)

include(CMakePrintHelpers)

find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
project(v1.7)

cmake_print_variables(ZEPHYR_BASE)

target_sources(app PRIVATE src/main.c)

add_definitions(-DWOLFSSL_USER_SETTINGS)
target_include_directories(app PRIVATE C:/ncs/v2.7.0/modules/crypto/wolfssl)

[Susheel Nuguru]

Seems like the API definitions of the nrf_socket.h is missing. It probably needs the BSD library, try setting CONFIG_BSD_LIBRARY=y if that helps. 

[Hannes_K]

Thank you for your response, I tried to set "CONFIG_BSD_LIBRARY=y", but I receive an error:
" 
warning: attempt to assign the value 'y' to the undefined symbol BSD_LIBRARY
error: Aborting due to Kconfig warnings
"

I searched for it and it seems that this setting is deprecated and I should use "NRF_MODEM_LIB" instead, which I have set at the top of my prj.conf

[Susheel Nuguru]

We did not seem to attempt to test this external extension after v2.5.0. So yes, there seems to be some adaptations that need to be done to make this work. We unfortunately do not have time to test this at the moment, so hopefully someone in this forum member might help. 

[Hannes_K]

Thank you for your response, then I need to find a workaround, another solution or like you said if anyone else might know. But thanks