QEMU

  1. Bug #1768295
  2. Comment #2

Comment 2 for bug 1768295

Revision history for this message
YVT (yvt) wrote :

I attached a ZIP file containing a set of binary images that reproduces the problem.

Secure.elf and NonSecure.elf contain codes that run in the Secure/Non-Secure mode, respectively. They must be loaded simultaneously by using the generic loader:

    $ qemu-system-arm -device loader,file=Secure.elf -kernel NonSecure.elf -machine mps2-an505 -nographic -s -cpu cortex-m33

The problematic instructions are located in 0x10000064 <__gnu_cmse_nonsecure_call> of Secure.elf. The program runs successfully and outputs some message via UART0 if they are replaced with NOPs, as shown below:

    $ qemu-system-arm -device loader,file=Secure-patched.elf -kernel NonSecure.elf -machine mps2-an505 -nographic -s -cpu cortex-m33
    I'm running in the Non-Secure mode.