0 Replies Latest reply on Mar 16, 2021 3:09 PM by rsc

    RPi4 kernel module compile issue

    rsc

      I have some code that compiles fine on Rpi3 but gives me an error on Rpi4 with the latest released raspbian

       

      Error: '__aeabi_uldivmod' undefined.

       

       

      This is the makefile:

       

      ifneq ($(KERNELRELEASE),)

      obj-m := copleycan.o

      copleycan-objs := src/main.o src/cardintf.o src/send.o src/recv.o src/test.o src/utils.o \

            src/fileinfo.o src/MsgQueue.o src/command.o src/bdm.o src/xmitbuff.o \

            src/usb.o

      ccflags-y := -std=gnu99 -Wno-declaration-after-statement

      else

      KDIR := /lib/modules/$(shell uname -r)/build

      PWD := $(shell pwd)

       

       

      default:

      $(MAKE) -C $(KDIR) M=$(PWD) modules

      endif

       

      Any suggestions?