topic Re: undefined reference in MCUXpresso IDE

undefined reference

stefan_ivanov — Fri, 27 Jul 2018 12:07:30 GMT

I am working with MCUXpresso IDE and a project for IMXRT1052B MCU.

After Build phase I am receiving many messages "undefined reference".

Re: undefined reference

BlackNight — Fri, 27 Jul 2018 16:03:09 GMT

Hi Stefan,

it would be helpful if you could share some details? What project you are using, what error messages, etc.

Best if you could post your project.

Erich

Re: undefined reference

stefan_ivanov — Thu, 02 Aug 2018 07:50:35 GMT

Hi Erich,

Thank you for your answer.

I've added 'specs=nosys.specs' but it is received:

Building target: IRIS_IMXRT1052B.axf
Invoking: MCU C++ Linker

……………………………………………………………...

c:/nxp/mcuxpressoide_10.2.0_759/ide/tools/bin/../lib/gcc/arm-none-eabi/7.2.1/../../../../arm-none-eabi/bin/ld.exe: unrecognized option '--specs=nosys.specs'
c:/nxp/mcuxpressoide_10.2.0_759/ide/tools/bin/../lib/gcc/arm-none-eabi/7.2.1/../../../../arm-none-eabi/bin/ld.exe: use the --help option for usage information

Regards,

Stefan

Re: undefined reference

stefan_ivanov — Thu, 02 Aug 2018 08:05:50 GMT

Hi Erich,

Thank you for your answer.

I've added 'specs=nosys.specs'

The result is:

…………………………………………………………

Building target: IRIS_IMXRT1052B.axf

Invoking: MCU C++ Linker

…………………………………………………………..

Thank you in advance !

Regards,

Stefan

Re: undefined reference

lpcxpresso_supp — Thu, 02 Aug 2018 09:16:44 GMT

Why are you trying to specify the -specs option? There should be no need to do this. MCUXpresso IDE will generally handle C library linkage automatically, based on the selected C library settings (in the Managed Linker Script page of the Linker Settings).

Anyway, the following LPCXpresso IDE FAQ may give you some clues as to the cause of your original error:

https://community.nxp.com/message/630711

But if not please post the original "undefined reference" message in full.

Regards,

MCUXpresso IDE Support.

Re: undefined reference

stefan_ivanov — Thu, 02 Aug 2018 09:25:54 GMT

Hi,

I am working with MCUXpresso IDE and a project for IMXRT1052B MCU.

I am using C++ default and C default compilers. I've been tried al combinations

of Newlib, NewlibNano. Also tried extern "C",...and so on and:

After Build phase I am receiving many messages "undefined reference".

Only I've after used --specs=nosys.specs there are no usch messages,

but there are unrecognized option --specs=nosys.specs which you may

see above.

Regards,

Stefan

Re: undefined reference

lpcxpresso_supp — Thu, 02 Aug 2018 09:39:48 GMT

So if you need further help, please copy the text from the build console showing the original "undefined reference" error messages and paste / attach them here.

Regards,

MCUXpresso IDE Support

Re: undefined reference

stefan_ivanov — Thu, 02 Aug 2018 09:51:27 GMT

Here they are so many messages:

…………………………………………………………………………………………………………………………………………

:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:178: undefined reference to `strcpy_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:179: undefined reference to `strcat_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:181: undefined reference to `strcat_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:182: undefined reference to `strcat_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:184: undefined reference to `strcat_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:185: undefined reference to `strcat_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:188: undefined reference to `strcpy_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:189: undefined reference to `strcat_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:191: undefined reference to `strcat_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:192: undefined reference to `strcat_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:194: undefined reference to `f_UnsignedShortToUniCode(unsigned short, unsigned short*, int, bool, unsigned char)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:195: undefined reference to `strcat_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:201: undefined reference to `LanguageStrings'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:201: undefined reference to `str_0_59'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:201: undefined reference to `strcpy_safe(unsigned short*, int, unsigned short const*)'
./LCD/Lcd_Icons/lcd_icons.o: In function `f_UpdateCounters(unsigned short)':
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Icons/lcd_icons.cpp:152: undefined reference to `f_UnsignedShortToUniCode(unsigned short, unsigned short*, int, bool, unsigned char)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Icons/lcd_icons.cpp:185: undefined reference to `f_UnsignedShortToUniCode(unsigned short, unsigned short*, int, bool, unsigned char)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Icons/lcd_icons.cpp:218: undefined reference to `f_UnsignedShortToUniCode(unsigned short, unsigned short*, int, bool, unsigned char)'
./LCD/Lcd_Icons/lcd_icons.o: In function `f_UpdateInfoIcon_SND(unsigned short)':
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Icons/lcd_icons.cpp:287: undefined reference to `f_UnsignedShortToUniCode(unsigned short, unsigned short*, int, bool, unsigned char)'
./LCD/Lcd_Icons/lcd_icons.o: In function `f_UpdateInfoIcon_FB(unsigned short)':
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Icons/lcd_icons.cpp:365: undefined reference to `f_UnsignedShortToUniCode(unsigned short, unsigned short*, int, bool, unsigned char)'
./LCD/Lcd_Icons/lcd_icons.o:D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Icons/lcd_icons.cpp:441: more undefined references to `f_UnsignedShortToUniCode(unsigned short, unsigned short*, int, bool, unsigned char)' follow
c:/nxp/mcuxpressoide_10.2.0_759/ide/tools/bin/../lib/gcc/arm-none-eabi/7.2.1/../../../../arm-none-eabi/lib/thumb/v7e-m/fpv4-sp/hard\libc_nano.a(lib_a-signalr.o): In function `_kill_r':
signalr.c:(.text._kill_r+0xe): undefined reference to `_kill'
c:/nxp/mcuxpressoide_10.2.0_759/ide/tools/bin/../lib/gcc/arm-none-eabi/7.2.1/../../../../arm-none-eabi/lib/thumb/v7e-m/fpv4-sp/hard\libc_nano.a(lib_a-signalr.o): In function `_getpid_r':
signalr.c:(.text._getpid_r+0x0): undefined reference to `_getpid'
c:/nxp/mcuxpressoide_10.2.0_759/ide/tools/bin/../lib/gcc/arm-none-eabi/7.2.1/../../../../arm-none-eabi/lib/thumb/v7e-m/fpv4-sp/hard\libc_nano.a(lib_a-writer.o): In function `_write_r':
writer.c:(.text._write_r+0x10): undefined reference to `_write'
c:/nxp/mcuxpressoide_10.2.0_759/ide/tools/bin/../lib/gcc/arm-none-eabi/7.2.1/../../../../arm-none-eabi/lib/thumb/v7e-m/fpv4-sp/hard\libc_nano.a(lib_a-closer.o): In function `_close_r':
closer.c:(.text._close_r+0xc): undefined reference to `_close'
c:/nxp/mcuxpressoide_10.2.0_759/ide/tools/bin/../lib/gcc/arm-none-eabi/7.2.1/../../../../arm-none-eabi/lib/thumb/v7e-m/fpv4-sp/hard\libc_nano.a(lib_a-lseekr.o): In function `_lseek_r':
lseekr.c:(.text._lseek_r+0x10): undefined reference to `_lseek'
c:/nxp/mcuxpressoide_10.2.0_759/ide/tools/bin/../lib/gcc/arm-none-eabi/7.2.1/../../../../arm-none-eabi/lib/thumb/v7e-m/fpv4-sp/hard\libc_nano.a(lib_a-readr.o): In function `_read_r':
readr.c:(.text._read_r+0x10): undefined reference to `_read'
c:/nxp/mcuxpressoide_10.2.0_759/ide/tools/bin/../lib/gcc/arm-none-eabi/7.2.1/../../../../arm-none-eabi/lib/thumb/v7e-m/fpv4-sp/hard\libc_nano.a(lib_a-fstatr.o): In function `_fstat_r':
fstatr.c:(.text._fstat_r+0xe): undefined reference to `_fstat'
c:/nxp/mcuxpressoide_10.2.0_759/ide/tools/bin/../lib/gcc/arm-none-eabi/7.2.1/../../../../arm-none-eabi/lib/thumb/v7e-m/fpv4-sp/hard\libc_nano.a(lib_a-isattyr.o): In function `_isatty_r':
isattyr.c:(.text._isatty_r+0xc): undefined reference to `_isatty'
c:/nxp/mcuxpressoide_10.2.0_759/ide/tools/bin/../lib/gcc/arm-none-eabi/7.2.1/../../../../arm-none-eabi/lib/thumb/v7e-m/fpv4-sp/hard\libc_nano.a(lib_a-abort.o): In function `abort':
abort.c:(.text.abort+0xa): undefined reference to `_exit'
collect2.exe: error: ld returned 1 exit status
SRAM_DTC: 0 GB 128 KB 0.00%
make: *** [IRIS_IMXRT1052B.axf] Error 1

12:46:04 Build Finished (took 4s.687ms)

Re: undefined reference

stefan_ivanov — Fri, 03 Aug 2018 09:45:52 GMT

In previous e-mail option is NewlibNano(none), and now the same is with option NewlibNano(nohost):

…………………………………………………………………………………………...

D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:119: undefined reference to `f_UnsignedShortToUniCode(unsigned short, unsigned short*, int, bool, unsigned char)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:120: undefined reference to `strcat_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:132: undefined reference to `strcpy_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:136: undefined reference to `str_0_59'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:136: undefined reference to `LanguageStrings'
./LCD/Lcd_Rtc/lcd_RTC.o: In function `f_UpdateAll()':
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:144: undefined reference to `strcpy_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:145: undefined reference to `strcat_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:147: undefined reference to `strcat_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:148: undefined reference to `strcat_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:150: undefined reference to `strcat_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:151: undefined reference to `strcat_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:154: undefined reference to `strcpy_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:155: undefined reference to `strcat_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:157: undefined reference to `strcat_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:158: undefined reference to `strcat_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:160: undefined reference to `f_UnsignedShortToUniCode(unsigned short, unsigned short*, int, bool, unsigned char)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:161: undefined reference to `strcat_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:167: undefined reference to `strcpy_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:167: undefined reference to `LanguageStrings'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:167: undefined reference to `str_0_59'
./LCD/Lcd_Rtc/lcd_RTC.o: In function `f_InitTimeStrings()':
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:178: undefined reference to `strcpy_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:179: undefined reference to `strcat_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:181: undefined reference to `strcat_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:182: undefined reference to `strcat_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:184: undefined reference to `strcat_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:185: undefined reference to `strcat_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:188: undefined reference to `strcpy_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:189: undefined reference to `strcat_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:191: undefined reference to `strcat_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:192: undefined reference to `strcat_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:194: undefined reference to `f_UnsignedShortToUniCode(unsigned short, unsigned short*, int, bool, unsigned char)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:195: undefined reference to `strcat_safe(unsigned short*, int, unsigned short const*)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:201: undefined reference to `LanguageStrings'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:201: undefined reference to `str_0_59'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Rtc/lcd_RTC.cpp:201: undefined reference to `strcpy_safe(unsigned short*, int, unsigned short const*)'
./LCD/Lcd_Icons/lcd_icons.o: In function `f_UpdateCounters(unsigned short)':
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Icons/lcd_icons.cpp:152: undefined reference to `f_UnsignedShortToUniCode(unsigned short, unsigned short*, int, bool, unsigned char)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Icons/lcd_icons.cpp:185: undefined reference to `f_UnsignedShortToUniCode(unsigned short, unsigned short*, int, bool, unsigned char)'
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Icons/lcd_icons.cpp:218: undefined reference to `f_UnsignedShortToUniCode(unsigned short, unsigned short*, int, bool, unsigned char)'
./LCD/Lcd_Icons/lcd_icons.o: In function `f_UpdateInfoIcon_SND(unsigned short)':
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Icons/lcd_icons.cpp:287: undefined reference to `f_UnsignedShortToUniCode(unsigned short, unsigned short*, int, bool, unsigned char)'
./LCD/Lcd_Icons/lcd_icons.o: In function `f_UpdateInfoIcon_FB(unsigned short)':
D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Icons/lcd_icons.cpp:365: undefined reference to `f_UnsignedShortToUniCode(unsigned short, unsigned short*, int, bool, unsigned char)'
./LCD/Lcd_Icons/lcd_icons.o:D:\Projects\IRIS_IMXRT1052B\Release/../LCD/Lcd_Icons/lcd_icons.cpp:441: more undefined references to `f_UnsignedShortToUniCode(unsigned short, unsigned short*, int, bool, unsigned char)' follow
collect2.exe: error: ld returned 1 exit status
SRAM_DTC: 0 GB 128 KB 0.00%
make: *** [IRIS_IMXRT1052B.axf] Error 1

12:38:17 Build Finished (took 24s.590ms)

Re: undefined reference

lpcxpresso_supp — Fri, 03 Aug 2018 10:08:37 GMT

My best guess is that your project is not actually linking with the C++ library archives. Section 15.7 "Libraries and linker scripts" of the MCUXpresso IDE v10.2 User Guide covers the libraries that would generally be expected to be linked against for different project types / library settings.

Check this information agains the linker script files (.ld) from inside your project.

[ And are you using managed linker scripts - or is your project perhaps configured to use a manual linker script? ]

Regards,

MCUXpresso IDE Support

Re: undefined reference

stefan_ivanov — Fri, 03 Aug 2018 10:13:05 GMT

I am using managed linker scripts.

Re: undefined reference

stefan_ivanov — Fri, 03 Aug 2018 12:48:07 GMT

I am using managed linker scripts but despite of that I have added C++ libraries

libgcc.a libc_nano.a libstdc++_nano.a libm.a libcr_newlib_none.a

and... everything is O'K !

Thanks a lot !

Re: undefined reference

lpcxpresso_supp — Fri, 03 Aug 2018 15:03:22 GMT

So that sounds like you may actually have a C rather than a C++ project ? Do you see the MCU C++ Compiler in the "Tool Settings" tab of your Project Settings?

Regards,

MCUXpresso IDE Support

Re: undefined reference

stefan_ivanov — Wed, 15 Aug 2018 11:27:34 GMT

I have C++ project.

The latest issue is:

Invoking: MCU C++ Linker
arm-none-eabi-c++ -nostdlib -L"C:/nxp/MCUXpressoIDE_10.2.0_759/ide/tools/arm-none-eabi/bin/" -L"C:/nxp/MCUXpressoIDE_10.2.0_759/ide/tools/lib/gcc/arm-none-eabi/7.2.1/" -L"C:/nxp/MCUXpressoIDE_10.2.0_759/ide/tools/arm-none-eabi/lib/" -specs=nosys.specs -Xlinker -Map="IRIS_IMXRT1052B.map" -Xlinker --gc-sections -Xlinker -print-memory-usage -Xlinker --sort-section=alignment -Xlinker -specs=nano.specs -mcpu=cortex-m7 -mfpu=fpv5-sp-d16 -mfloat-abi=hard -mthumb -T IRIS_IMXRT1052B_Release.ld -o "IRIS_IMXRT1052B.axf" ./startup/startup_mimxrt1052.o ./source/IRIS_IMXRT1052B.o ./source/semihost_hardfault.o ./lwip-1.1.1/src/netif/ppp/auth.o ./lwip-1.1.1/src/netif/ppp/chap.o ./lwip-1.1.1/src/netif/ppp/chpms.o ./lwip-1.1.1/src/netif/ppp/fsm.o ./lwip-1.1.1/src/netif/ppp/ipcp.o ./lwip-1.1.1/src/netif/ppp/lcp.o ./lwip-1.1.1/src/netif/ppp/magic.o ./lwip-1.1.1/src/netif/ppp/md5.o ./lwip-1.1.1/src/netif/ppp/pap.o ./lwip-1.1.1/src/netif/ppp/ppp.o ./lwip-1.1.1/src/netif/ppp/randm.o ./lwip-1.1.1/src/netif/ppp/vj.o ./lwip-1.1.1/src/netif/etharp.o ./lwip-1.1.1/src/netif/ethernetif.o ./lwip-1.1.1/src/netif/loopif.o ./lwip-1.1.1/src/netif/slipif.o ./lwip-1.1.1/src/core/ipv4/icmp.o ./lwip-1.1.1/src/core/ipv4/ip.o ./lwip-1.1.1/src/core/ipv4/ip_addr.o ./lwip-1.1.1/src/core/ipv4/ip_frag.o ./lwip-1.1.1/src/core/dhcp.o ./lwip-1.1.1/src/core/inet.o ./lwip-1.1.1/src/core/mem.o ./lwip-1.1.1/src/core/memp.o ./lwip-1.1.1/src/core/netif.o ./lwip-1.1.1/src/core/pbuf.o ./lwip-1.1.1/src/core/raw.o ./lwip-1.1.1/src/core/stats.o ./lwip-1.1.1/src/core/sys.o ./lwip-1.1.1/src/core/tcp.o ./lwip-1.1.1/src/core/tcp_in.o ./lwip-1.1.1/src/core/tcp_out.o ./lwip-1.1.1/src/core/udp.o ./lwip-1.1.1/src/api/api_lib.o ./lwip-1.1.1/src/api/api_msg.o ./lwip-1.1.1/src/api/err.o ./lwip-1.1.1/src/api/sockets.o ./lwip-1.1.1/src/api/tcpip.o ./lwip-1.1.1/src/lwIP_main.o ./lwip-1.1.1/contrib/port/FreeRTOS/CS8900/sys_arch.o ./board/board.o ./board/clock_config.o ./board/peripherals.o ./board/pin_mux.o ./amazon-freertos/portable/fsl_tickless_systick.o ./amazon-freertos/portable/heap_4.o ./amazon-freertos/FreeRTOS/portable/port.o ./amazon-freertos/FreeRTOS/event_groups.o ./amazon-freertos/FreeRTOS/list.o ./amazon-freertos/FreeRTOS/queue.o ./amazon-freertos/FreeRTOS/stream_buffer.o ./amazon-freertos/FreeRTOS/tasks.o ./amazon-freertos/FreeRTOS/timers.o ./Periphery/Usb/AMDFlash.o ./Periphery/Usb/M29W160EB_x16_x2.o ./Periphery/Usb/USB.o ./Periphery/Usb/USB_Functions.o ./Periphery/Usb/progflash.o ./Periphery/Usb/usb_descriptors.o ./Periphery/Usb/usbrx.o ./Periphery/Uart/uart1.o ./Periphery/Uart/uart2.o ./Periphery/Uart/uart3.o ./Periphery/Timers/timers.o ./Periphery/Spi/fs.o ./Periphery/Spi/spi_flash.o ./Periphery/Sound/sound.o ./Periphery/Rtc/rtc.o ./Periphery/Log/log.o ./Periphery/Led/led.o ./Periphery/FAT_FBF/FAT_FBF.o ./Periphery/Communicator/communicator.o ./Periphery/CRC/crc32.o ./Periphery/periphery_devices.o ./Periphery/periphery_manager.o ./Periphery/test_input.o ./ModBus/ModBus.o ./ModBus/ModBusCrc.o ./Main/AFP.o ./Main/NetMsg.o ./Main/Network.o ./Main/NetworkMem.o ./Main/RamManager.o ./Main/UDLManager.o ./Main/init.o ./Main/init_rom.o ./Main/init_rom_to_ram.o ./Main/int_handler.o ./Main/vectors_rom.o ./LCD/TouchScreen/calibrate.o ./LCD/TouchScreen/lcd_touch.o ./LCD/TouchScreen/touchscreen.o ./LCD/Menus/Zones/lcd_zones.o ./LCD/Menus/Time/lcd_time.o ./LCD/Menus/Time/lcd_time_images.o ./LCD/Menus/Time/lcd_time_menu.o ./LCD/Menus/Test/lcd_menu_test.o ./LCD/Menus/System/lcd_menu_system.o ./LCD/Menus/Save/lcd_save.o ./LCD/Menus/PeripheryDevices/lcd_periphery_devices.o ./LCD/Menus/Network/LanMessagingSystem.o ./LCD/Menus/Network/Lcd_IP_Table.o ./LCD/Menus/Network/Lcd_Network.o ./LCD/Menus/MainMenu/lcd_Menu_Main.o ./LCD/Menus/LoopDevices/lcd_loop_devices.o ./LCD/Menus/Kbd/lcd_kbd.o ./LCD/Menus/Kbd/lcd_kbd_images.o ./LCD/Menus/Kbd/lcd_txt_fields_images.o ./LCD/Menus/IO/lcd_io.o ./LCD/Menus/IO/lcd_io_images.o ./LCD/Menus/Disable/lcd_menu_disable.o ./LCD/Menus/Communicator/lcd_communicator.o ./LCD/Menus/Communicator/lcd_mod_communicator.o ./LCD/Menus/Calibration/lcd_calibration.o ./LCD/Menus/Alarms/alarms_txt_images.o ./LCD/Menus/Alarms/lcd_alarm_images.o ./LCD/Menus/Alarms/lcd_alarms.o ./LCD/Menus/AccessCodes/lcd_access_codes.o ./LCD/Main/LCD_Test.o ./LCD/Main/lcd.o ./LCD/Main/lcd_SSA.o ./LCD/Main/lcd_globals.o ./LCD/Main/lcd_messages.o ./LCD/Main/lcd_misc.o ./LCD/Main/lcd_modes.o ./LCD/Main/lcd_objects.o ./LCD/Lcd_Strings/lcd_strings.o ./LCD/Lcd_Spi/lcd_spi.o ./LCD/Lcd_Rtc/lcd_RTC.o ./LCD/Lcd_Images/IMAGES.o ./LCD/Lcd_Images/lcd_image_Base_Grey.o ./LCD/Lcd_Images/lcd_image_Base_Normal.o ./LCD/Lcd_Images/lcd_images_definitions.o ./LCD/Lcd_Images/status_background.o ./LCD/Lcd_Icons/lcd_icon_images.o ./LCD/Lcd_Icons/lcd_icons.o ./LCD/Lcd_Fonts/font12x8_Bold.o ./LCD/Lcd_Fonts/font12x8_Normal.o ./LCD/Lcd_Fonts/font16x16Bold.o ./LCD/Lcd_Fonts/font16x16Normal.o ./LCD/Lcd_Fonts/fontANSII.o ./LCD/Lcd_Fonts/lcd_fonts.o ./LCD/Lcd_Control/lcd_control.o ./LCD/Lcd_Color_Palletes/lcd_RGB.o ./LCD/Extras/Farsi.o ./LCD/Extras/lcd_ScreenSaver.o ./Headers/utility.o ./Fire/IO.o ./Fire/SaveConfig.o ./Fire/access_codes.o ./Fire/fire.o ./Fire/loop_device.o ./Fire/message_type_txt.o ./Fire/zone.o ./CMSIS/system_MIMXRT1052.o ./BasicWEB.o -llibgcc.a -llibc_nano.a -llibstdc++_nano.a -llibm.a -llibcr_newlib_none.a
c:/nxp/mcuxpressoide_10.2.0_759/ide/tools/bin/../lib/gcc/arm-none-eabi/7.2.1/../../../../arm-none-eabi/bin/ld.exe: cannot find -llibgcc.a
c:/nxp/mcuxpressoide_10.2.0_759/ide/tools/bin/../lib/gcc/arm-none-eabi/7.2.1/../../../../arm-none-eabi/bin/ld.exe: cannot find -llibc_nano.a
c:/nxp/mcuxpressoide_10.2.0_759/ide/tools/bin/../lib/gcc/arm-none-eabi/7.2.1/../../../../arm-none-eabi/bin/ld.exe: cannot find -llibstdc++_nano.a
c:/nxp/mcuxpressoide_10.2.0_759/ide/tools/bin/../lib/gcc/arm-none-eabi/7.2.1/../../../../arm-none-eabi/bin/ld.exe: cannot find -llibm.a
c:/nxp/mcuxpressoide_10.2.0_759/ide/tools/bin/../lib/gcc/arm-none-eabi/7.2.1/../../../../arm-none-eabi/bin/ld.exe: cannot find -llibcr_newlib_none.a
collect2.exe: error: ld returned 1 exit status

I tried may be everything, but...nothing...

I really do not know what to do ?!

Regards,

Stefan Ivanov

Re: undefined reference

lpcxpresso_supp — Thu, 16 Aug 2018 07:14:47 GMT

Have you modified the contents of the IDE installation directory at all?

I would suggest that you start a second instance of the IDE using a different workspace and use the New project wizard to create a new C++ project for your device. Check that this builds correctly. Then compare and contrast the project settings, and the tool invocations on the Build log in the console view between your project and the new project just created.

Regards,

MCUXpresso IDE Support

Re: undefined reference

stefan_ivanov — Thu, 16 Aug 2018 08:26:45 GMT

I have not modified contents of IDE installation directory at all.

The project is C++, but the code is mix of C and C++ code.

I am porting software from ARM 920T to ARM Cortex M7 and

FreeRTOS.

Regards,

Stefan Ivanov

Re: undefined reference

converse — Thu, 16 Aug 2018 08:30:41 GMT

You appear to have added the following libraries to the linker command line (either under Miscellaneous, or with Libraries - I can't tell which!)

-llibgcc.a -llibc_nano.a -llibstdc++_nano.a -llibm.a -llibcr_newlib_none.a

Remove all of them - the IDE automatically adds the correct C++ libraries in the Managed Linker script.

BTW: If you want to add libraries to the command line, you must remove the leading "lib" and the trailing ".a", so if you did want to add libraries yourself, you would add them like this

-lgcc -lc_nano -lstdc++_nano -lm -lcr_newlib_none

BUT (as I said) none of these are needed, as the IDE adds them automatically.

Re: undefined reference

stefan_ivanov — Thu, 16 Aug 2018 08:38:26 GMT

The result is:

-many messages "undefined references to..." +

C:/nxp/MCUXpressoIDE_10.2.0_759/ide/tools/arm-none-eabi/lib/\libc_nano.a(lib_a-abort.o): In function `abort':
abort.c:(.text.abort+0x10): undefined reference to `_exit'
C:/nxp/MCUXpressoIDE_10.2.0_759/ide/tools/arm-none-eabi/lib/\libc_nano.a(lib_a-signalr.o): In function `_kill_r':
signalr.c:(.text._kill_r+0x1c): undefined reference to `_kill'
C:/nxp/MCUXpressoIDE_10.2.0_759/ide/tools/arm-none-eabi/lib/\libc_nano.a(lib_a-signalr.o): In function `_getpid_r':
signalr.c:(.text._getpid_r+0x4): undefined reference to `_getpid'
collect2.exe: error: ld returned 1 exit status
SRAM_DTC: 0 GB 128 KB 0.00%
make: *** [IRIS_IMXRT1052B.axf] Error 1

Re: undefined reference

converse — Thu, 16 Aug 2018 11:51:28 GMT

Suggest you read this:

https://community.nxp.com/thread/389070

Re: undefined reference

stefan_ivanov — Thu, 16 Aug 2018 11:59:56 GMT

Yes, I have read this. I have changed library from NewlibNano(none) to NewlibNano(semihost).

Messages undefined reference to `_exit', undefined reference to `_kill', undefined reference to `_getpid'

disappeared, there are messages "undefined references to...". I have tried many things, but... nothing.