How to use axi dma kernel module in custom application in petalinux?

Question

I am trying to build the axidma-benchmark application with the Xilinx-axidma driver (Github repo) provided by bperez77.

I am using Petalinux 20.2 to build Linux for my custom project. In the new version of the kernel, some functions are changed and I get some errors when running petalinux-build. I changed the driver files as mentioned here and build the kernel module successfully.

In the following, I create the custom application by running:

petalinux-create -t apps --name axidma-benchmark --enable

Then I copy the application files into the recipes-apps directory and append all C and header files to the SRC_URI List in the axidma-benchmark.bb as:

SRC_URI = "file://axidma-benchmark.c \
       file://axidma_ioctl.h \
       file://conversion.h \
       file://libaxidma.h \
       file://util.c \
       file://util.h \
       file://Makefile \
      "

Then I add APP_OBJS += util.o to the Makefile and build the application by running:

petalinux-build -c axidma-benchmark

But I got these errors:

ERROR: axidma-benchmark-1.0-r0 do_compile: oe_runmake failed ERROR: axidma-benchmark-1.0-r0 do_compile: Execution of '/media/fpgaws/projects/DevelopmentLab/build/apu/ultrazed7ev/build/tmp/work/aarch64-xilinx-linux/axidma-benchmark/1.0-r0/temp/run.do_compile.21635' failed with exit code 1: aarch64-xilinx-linux-gcc -march=armv8-a+crc -mtune=cortex-a72.cortex-a53 -fstack-protector-strong -D_FORTIFY_SOURCE=2 -Wformat -Wformat-security -Werror=format-security --sysroot=/media/fpgaws/projects/DevelopmentLab/build/apu/ultrazed7ev/build/tmp/work/aarch64-xilinx-linux/axidma-benchmark/1.0-r0/recipe-sysroot -o axidma-benchmark axidma-benchmark.o util.o -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed -fstack-protector-strong -Wl,-z,relro,-z,now /media/fpgaws/projects/DevelopmentLab/build/apu/ultrazed7ev/build/tmp/work/aarch64-xilinx-linux/axidma-benchmark/1.0-r0/recipe-sysroot-native/usr/bin/aarch64-xilinx-linux/../../libexec/aarch64-xilinx-linux/gcc/aarch64-xilinx-linux/9.2.0/ld: axidma-benchmark.o: in function main': /usr/src/debug/axidma-benchmark/1.0-r0/axidma-benchmark.c:491: undefined reference to axidma_init' /media/fpgaws/projects/DevelopmentLab/build/apu/ultrazed7ev/build/tmp/work/aarch64-xilinx-linux/axidma-benchmark/1.0-r0/recipe-sysroot-native/usr/bin/aarch64-xilinx-linux/../../libexec/aarch64-xilinx-linux/gcc/aarch64-xilinx-linux/9.2.0/ld: /usr/src/debug/axidma-benchmark/1.0-r0/axidma-benchmark.c:499: undefined reference to axidma_malloc' /media/fpgaws/projects/DevelopmentLab/build/apu/ultrazed7ev/build/tmp/work/aarch64-xilinx-linux/axidma-benchmark/1.0-r0/recipe-sysroot-native/usr/bin/aarch64-xilinx-linux/../../libexec/aarch64-xilinx-linux/gcc/aarch64-xilinx-linux/9.2.0/ld: /usr/src/debug/axidma-benchmark/1.0-r0/axidma-benchmark.c:505: undefined reference to axidma_malloc' /media/fpgaws/projects/DevelopmentLab/build/apu/ultrazed7ev/build/tmp/work/aarch64-xilinx-linux/axidma-benchmark/1.0-r0/recipe-sysroot-native/usr/bin/aarch64-xilinx-linux/../../libexec/aarch64-xilinx-linux/gcc/aarch64-xilinx-linux/9.2.0/ld: /usr/src/debug/axidma-benchmark/1.0-r0/axidma-benchmark.c:514: undefined reference to axidma_get_vdma_tx' /media/fpgaws/projects/DevelopmentLab/build/apu/ultrazed7ev/build/tmp/work/aarch64-xilinx-linux/axidma-benchmark/1.0-r0/recipe-sysroot-native/usr/bin/aarch64-xilinx-linux/../../libexec/aarch64-xilinx-linux/gcc/aarch64-xilinx-linux/9.2.0/ld: /usr/src/debug/axidma-benchmark/1.0-r0/axidma-benchmark.c:515: undefined reference to axidma_get_vdma_rx' /media/fpgaws/projects/DevelopmentLab/build/apu/ultrazed7ev/build/tmp/work/aarch64-xilinx-linux/axidma-benchmark/1.0-r0/recipe-sysroot-native/usr/bin/aarch64-xilinx-linux/../../libexec/aarch64-xilinx-linux/gcc/aarch64-xilinx-linux/9.2.0/ld: axidma-benchmark.o: in function single_transfer_test': /usr/src/debug/axidma-benchmark/1.0-r0/axidma-benchmark.c:396: undefined reference to axidma_twoway_transfer' /media/fpgaws/projects/DevelopmentLab/build/apu/ultrazed7ev/build/tmp/work/aarch64-xilinx-linux/axidma-benchmark/1.0-r0/recipe-sysroot-native/usr/bin/aarch64-xilinx-linux/../../libexec/aarch64-xilinx-linux/gcc/aarch64-xilinx-linux/9.2.0/ld: axidma-benchmark.o: in function main': /usr/src/debug/axidma-benchmark/1.0-r0/axidma-benchmark.c:558: undefined reference to axidma_free' /media/fpgaws/projects/DevelopmentLab/build/apu/ultrazed7ev/build/tmp/work/aarch64-xilinx-linux/axidma-benchmark/1.0-r0/recipe-sysroot-native/usr/bin/aarch64-xilinx-linux/../../libexec/aarch64-xilinx-linux/gcc/aarch64-xilinx-linux/9.2.0/ld: /usr/src/debug/axidma-benchmark/1.0-r0/axidma-benchmark.c:560: undefined reference to axidma_free' /media/fpgaws/projects/DevelopmentLab/build/apu/ultrazed7ev/build/tmp/work/aarch64-xilinx-linux/axidma-benchmark/1.0-r0/recipe-sysroot-native/usr/bin/aarch64-xilinx-linux/../../libexec/aarch64-xilinx-linux/gcc/aarch64-xilinx-linux/9.2.0/ld: /usr/src/debug/axidma-benchmark/1.0-r0/axidma-benchmark.c:562: undefined reference to axidma_destroy' /media/fpgaws/projects/DevelopmentLab/build/apu/ultrazed7ev/build/tmp/work/aarch64-xilinx-linux/axidma-benchmark/1.0-r0/recipe-sysroot-native/usr/bin/aarch64-xilinx-linux/../../libexec/aarch64-xilinx-linux/gcc/aarch64-xilinx-linux/9.2.0/ld: /usr/src/debug/axidma-benchmark/1.0-r0/axidma-benchmark.c:519: undefined reference to axidma_get_dma_tx' /media/fpgaws/projects/DevelopmentLab/build/apu/ultrazed7ev/build/tmp/work/aarch64-xilinx-linux/axidma-benchmark/1.0-r0/recipe-sysroot-native/usr/bin/aarch64-xilinx-linux/../../libexec/aarch64-xilinx-linux/gcc/aarch64-xilinx-linux/9.2.0/ld: /usr/src/debug/axidma-benchmark/1.0-r0/axidma-benchmark.c:520: undefined reference to axidma_get_dma_rx' /media/fpgaws/projects/DevelopmentLab/build/apu/ultrazed7ev/build/tmp/work/aarch64-xilinx-linux/axidma-benchmark/1.0-r0/recipe-sysroot-native/usr/bin/aarch64-xilinx-linux/../../libexec/aarch64-xilinx-linux/gcc/aarch64-xilinx-linux/9.2.0/ld: axidma-benchmark.o: in function time_dma': /usr/src/debug/axidma-benchmark/1.0-r0/axidma-benchmark.c:426: undefined reference to axidma_twoway_transfer' collect2: error: ld returned 1 exit status make: *** [Makefile:12: axidma-benchmark] Error 1 WARNING: /media/fpgaws/projects/DevelopmentLab/build/apu/ultrazed7ev/build/tmp/work/aarch64-xilinx-linux/axidma-benchmark/1.0-r0/temp/run.do_compile.21635:1 exit 1 from 'exit 1' ERROR: Logfile of failure stored in: /media/fpgaws/projects/DevelopmentLab/build/apu/ultrazed7ev/build/tmp/work/aarch64-xilinx-linux/axidma-benchmark/1.0-r0/temp/log.do_compile.21635

What is my mistake?

HosseinBeheshti HosseinBeheshti · Accepted Answer · 2021-02-11T06:48:49

I have forgotten to add the libaxidma.c files into the file directory. By adding this file application was built successfully.

Update: You can access the final version of my code via this link. If you have any problems, please let me know.

How to use axi dma kernel module in custom application in petalinux?

1 Answers