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running programs on FVP

Yaseen AL-BEGALI

Hi everyone, 

I am starting my project in Morello Board. I am using FVP and have followed all the steps to get morello-sdk in this guide: https://git.morello-project.org/morello/morello-sdk#build-a-hello-world-application-using-morello-sdk-development-kit. 
the problem I have is when I run the program using Qemu, I get this error: qemu: uncaught target signal 4 (Illegal instruction) - core dumped
Illegal instruction (core dumped)
Can you please help to find a way to solve this issue?

Thanks in advance. 

Parents
  • +1 in reply to Kevin Brodsky

    Thank you very much Kevin, 
    That is really helpful, I highly appreciate you help. Another and hopefully last thing please: I receive this message:  "mount: /morello/shared_folder: special device FM does not exist"
    when I tried to mount the shared folder using this command: 

    mount -t 9p -o trans=virtio,version=9p2000.L FM /morello/shared_folder

Reply
  • +1 in reply to Kevin Brodsky

    Thank you very much Kevin, 
    That is really helpful, I highly appreciate you help. Another and hopefully last thing please: I receive this message:  "mount: /morello/shared_folder: special device FM does not exist"
    when I tried to mount the shared folder using this command: 

    mount -t 9p -o trans=virtio,version=9p2000.L FM /morello/shared_folder

Children
  • +1 Arm Employee Badge in reply to Yaseen AL-BEGALI

    To use 9P (Plan 9 protocol), both the FVP system and the software stack must support 9P.

    I don't know if the Morello FVP supports 9P but the -l tells below (meaning it contains the VirtioP9Device component in the system), hopefully, it's supported.

    $ FVP_Morello -C disable_visualisation=1 -l | grep virtio_9p
board.virtio_p9.mount_tag=FM                          # (string, init-time) default = 'FM'     : mount tag
board.virtio_p9.quiet=0                               # (bool  , init-time) default = '0'      : Don't print warnings on malformed commands/descriptors
board.virtio_p9.root_path=                            # (string, init-time) default = ''       : root directory path
board.virtio_p9.secure_accesses=0                     # (bool  , init-time) default = '0'      : Make device generate transactions with NS=0

    For software stack, if it's Linux, the following kernel configs should usually be defined to enable 9P.

    CONFIG_NET_9P=y
CONFIG_NET_9P_VIRTIO=y
CONFIG_NET_9P_DEBUG=y

    mount: /somewhere: special device FM does not exist.

    The error above usually means that the model was not started with the 9p root_path i.e. -C board.virtio_p9.root_path=/somewhere . For your case, it should be -C board.virtio_p9.root_path=/morello/shared_folder .  BTW, the permission of this directory may matter so you may need to set the directory to 0777 permission.

    $ mkdir      /morello/shared_folder
$ chmod 0777 /morello/shared_folder

    FYI, the details about the VirtioP9Device component can be found at:

    developer.arm.com/.../VirtioP9Device

    Kind regards,

    Toshi

  • 0 in reply to Toshihisa Oishi

    Thank you Toshihisa, great and helpful