QEMU

  1. Bug #757702
  2. Comment #1

Comment 1 for bug 757702

Revision history for this message
Peter Maydell (pmaydell) wrote : Re: Undefined instruction exception starts at offset 0x8 instead of 0x4

I can't reproduce this (either with current trunk or with qemu 0.14.0 release version). Also, if we were directing UNDEF exceptions to the SVC entry point I think it would cause fairly obvious breakage of Linux guests.

I'm going to attach the test program I used to confirm that we are correctly directing the exception to the 0x4 vector:

./arm-softmmu/qemu-system-arm -kernel ~/linaro/qemu-misc-tests/undef-exc.axf -semihosting
Starting test
In undef vector

I'll also attach the binary, since it's only 2K and the source needs armcc to build.

If you can provide a simple test program and qemu command line which demonstrates the behaviour you think is incorrect I can investigate further.