Building generic STM32U585CIU6 results in linker errors

[Zer0-bit]

Hi, so basically as the title says, i have added a custom board json config, exported the linker using CubeMX when building the code builds fine yet on linking it spits out lots of "undefined" type of errors.

Here is the custom board definition:

{
    "build": {
      "arduino": {
        "variant_h": "variant_generic.h"
      },
      "core": "stm32",
      "cpu": "cortex-m33",
      "mcu": "stm32u585ciu6",
      "extra_flags": "-DSTM32U5 -DSTM32U5xx -DSTM32U585xx",
      "f_cpu": "160000000L",
      "framework_extra_flags": {
        "arduino": "-DCUSTOM_PERIPHERAL_PINS -DARDUINO_GENERIC_U585CIUX"
      },
      "product_line": "STM32U585xx",
      "variant": "STM32U5xx/U575C(G-I)(T-U)_U585CI(T-U)"
    },
    "connectivity": [
      "can"
    ],
    "debug": {
      "jlink_device": "STM32F411CE",
      "openocd_target": "stm32u5x",
      "svd_path": "STM32u585xx.svd"
    },
    "frameworks": [
      "arduino",
      "cmsis",
      "stm32cube",
      "libopencm3",
      "zephyr"
    ],
    "name": "GENERIC_U585CIUX",
    "upload": {
      "maximum_ram_size": 804864,
      "maximum_size": 2097152,
      "protocol": "stlink",
      "protocols": [
        "jlink",
        "cmsis-dap",
        "stlink",
        "blackmagic",
        "serial",
        "dfu"
      ]
    },
    "url": "https://www.st.com/en/microcontrollers-microprocessors/stm32u585ci.html",
    "vendor": "ST"
  }

Here's the error:

Building in release mode
Compiling .pio\build\performance-optimised-pcb\src\project.ino.cpp.o
Linking .pio\build\performance-optimised-pcb\firmware.elf
c:/users/user/.platformio/packages/toolchain-gccarmnoneeabi/bin/../lib/gcc/arm-none-eabi/12.3.1/../../../../arm-none-eabi/bin/ld.exe: .pio/build/performance-optimised-pcb/SrcWrapper/src/stm32/analog.cpp.o: in function `get_dac_channel':
analog.cpp:(.text.get_dac_channel+0x20): undefined reference to `PinMap_DAC'
c:/users/user/.platformio/packages/toolchain-gccarmnoneeabi/bin/../lib/gcc/arm-none-eabi/12.3.1/../../../../arm-none-eabi/bin/ld.exe: .pio/build/performance-optimised-pcb/SrcWrapper/src/stm32/analog.cpp.o: in function `dac_stop':
analog.cpp:(.text.dac_stop+0x30): undefined reference to `PinMap_DAC'
c:/users/user/.platformio/packages/toolchain-gccarmnoneeabi/bin/../lib/gcc/arm-none-eabi/12.3.1/../../../../arm-none-eabi/bin/ld.exe: .pio/build/performance-optimised-pcb/SrcWrapper/src/stm32/analog.cpp.o: in function `pwm_stop':
analog.cpp:(.text.pwm_stop+0x54): undefined reference to `PinMap_TIM'
c:/users/user/.platformio/packages/toolchain-gccarmnoneeabi/bin/../lib/gcc/arm-none-eabi/12.3.1/../../../../arm-none-eabi/bin/ld.exe: .pio/build/performance-optimised-pcb/SrcWrapper/src/stm32/uart.c.o: in function `uart_init':
uart.c:(.text.uart_init+0x318): undefined reference to `PinMap_UART_TX'
c:/users/user/.platformio/packages/toolchain-gccarmnoneeabi/bin/../lib/gcc/arm-none-eabi/12.3.1/../../../../arm-none-eabi/bin/ld.exe: uart.c:(.text.uart_init+0x31c): undefined reference to `PinMap_UART_RX'
c:/users/user/.platformio/packages/toolchain-gccarmnoneeabi/bin/../lib/gcc/arm-none-eabi/12.3.1/../../../../arm-none-eabi/bin/ld.exe: uart.c:(.text.uart_init+0x320): undefined reference to `PinMap_UART_RTS'
c:/users/user/.platformio/packages/toolchain-gccarmnoneeabi/bin/../lib/gcc/arm-none-eabi/12.3.1/../../../../arm-none-eabi/bin/ld.exe: uart.c:(.text.uart_init+0x324): undefined reference to `PinMap_UART_CTS'
c:/users/user/.platformio/packages/toolchain-gccarmnoneeabi/bin/../lib/gcc/arm-none-eabi/12.3.1/../../../../arm-none-eabi/bin/ld.exe: .pio/build/performance-optimised-pcb/SrcWrapper/src/stm32/uart.c.o: in function `uart_debug_init':
uart.c:(.text.uart_debug_init+0x38): undefined reference to `PinMap_UART_TX'
c:/users/user/.platformio/packages/toolchain-gccarmnoneeabi/bin/../lib/gcc/arm-none-eabi/12.3.1/../../../../arm-none-eabi/bin/ld.exe: .pio/build/performance-optimised-pcb/SrcWrapper/src/stm32/uart.c.o: in function `uart_debug_write':
uart.c:(.text.uart_debug_write+0xe0): undefined reference to `PinMap_UART_TX'
c:/users/user/.platformio/packages/toolchain-gccarmnoneeabi/bin/../lib/gcc/arm-none-eabi/12.3.1/../../../../arm-none-eabi/bin/ld.exe: .pio/build/performance-optimised-pcb/lib9a7/libWire.a(twi.c.o): in function `i2c_custom_init':
twi.c:(.text.i2c_custom_init+0x1fc): undefined reference to `PinMap_I2C_SDA'
c:/users/user/.platformio/packages/toolchain-gccarmnoneeabi/bin/../lib/gcc/arm-none-eabi/12.3.1/../../../../arm-none-eabi/bin/ld.exe: twi.c:(.text.i2c_custom_init+0x200): undefined reference to `PinMap_I2C_SCL'
c:/users/user/.platformio/packages/toolchain-gccarmnoneeabi/bin/../lib/gcc/arm-none-eabi/12.3.1/../../../../arm-none-eabi/bin/ld.exe: .pio/build/performance-optimised-pcb/lib257/libSPI.a(spi_com.c.o): in function `spi_init':
spi_com.c:(.text.spi_init+0x308): undefined reference to `PinMap_SPI_MOSI'
c:/users/user/.platformio/packages/toolchain-gccarmnoneeabi/bin/../lib/gcc/arm-none-eabi/12.3.1/../../../../arm-none-eabi/bin/ld.exe: spi_com.c:(.text.spi_init+0x30c): undefined reference to `PinMap_SPI_MISO'
c:/users/user/.platformio/packages/toolchain-gccarmnoneeabi/bin/../lib/gcc/arm-none-eabi/12.3.1/../../../../arm-none-eabi/bin/ld.exe: spi_com.c:(.text.spi_init+0x310): undefined reference to `PinMap_SPI_SCLK'
c:/users/user/.platformio/packages/toolchain-gccarmnoneeabi/bin/../lib/gcc/arm-none-eabi/12.3.1/../../../../arm-none-eabi/bin/ld.exe: spi_com.c:(.text.spi_init+0x314): undefined reference to `PinMap_SPI_SSEL'
c:/users/user/.platformio/packages/toolchain-gccarmnoneeabi/bin/../lib/gcc/arm-none-eabi/12.3.1/../../../../arm-none-eabi/bin/ld.exe: .pio/build/performance-optimised-pcb/libFrameworkArduino.a(HardwareSerial.cpp.o): in function `HardwareSerial::HardwareSerial(void*, HalfDuplexMode_t)':
HardwareSerial.cpp:(.text._ZN14HardwareSerialC2EPv16HalfDuplexMode_t+0xd4): undefined reference to `PinMap_UART_TX'
c:/users/user/.platformio/packages/toolchain-gccarmnoneeabi/bin/../lib/gcc/arm-none-eabi/12.3.1/../../../../arm-none-eabi/bin/ld.exe: HardwareSerial.cpp:(.text._ZN14HardwareSerialC2EPv16HalfDuplexMode_t+0xdc): undefined reference to `PinMap_UART_RX'
c:/users/user/.platformio/packages/toolchain-gccarmnoneeabi/bin/../lib/gcc/arm-none-eabi/12.3.1/../../../../arm-none-eabi/bin/ld.exe: .pio/build/performance-optimised-pcb/libFrameworkArduino.a(usbd_conf.c.o): in function `HAL_PCD_MspInit':
usbd_conf.c:(.text.HAL_PCD_MspInit+0x64): undefined reference to `PinMap_USB_OTG_FS'
c:/users/user/.platformio/packages/toolchain-gccarmnoneeabi/bin/../lib/gcc/arm-none-eabi/12.3.1/../../../../arm-none-eabi/bin/ld.exe: .pio/build/performance-optimised-pcb/libFrameworkArduino.a(wiring_digital.c.o): in function `pinMode':
wiring_digital.c:(.text.pinMode+0xe8): undefined reference to `PinMap_DAC'
c:/users/user/.platformio/packages/toolchain-gccarmnoneeabi/bin/../lib/gcc/arm-none-eabi/12.3.1/../../../../arm-none-eabi/bin/ld.exe: wiring_digital.c:(.text.pinMode+0xec): undefined reference to `PinMap_TIM'
collect2.exe: error: ld returned 1 exit status
*** [.pio\build\performance-optimised-pcb\firmware.elf] Error 1

Anyone has any idea why i'm getting this ? I believe i did define all the necessary flags to target the generic variant available in the framework so not sure why this output.

Thanks in advance to anyone taking a minute to read and help :)

[fpistm]

Hi @Zer0-bit
Here we do not support PIO.
Anyway, looking quickly to the error log and your json file it seems you tried to build a generic and requires to have a custom peripheral pins but I guess you do not create a dedicated one.
So simply remove -DCUSTOM_PERIPHERAL_PINS if it does not works you should ask on PIO forum or stm32duino.com.

[Zer0-bit]

Thanks for the quick reply and wow it was THIS simple, unfortunately for me in my troubleshooting i added that flag and totally forgot about it.
So thanks again this was definitely it, sorry for opening the issue in the wrong house :)