On 18 November 2014 21:19, Paolo Bonzini <pbonz...@redhat.com> wrote: > The isa-debugexit and testdev character device do not exit with exitcode > 0, in order to distinguish an exit from a system power down; the > low-order bit is always 1. The return values then should be 1 and 3 > instead of 0 and 1.
Semihosting isn't a test device -- it's an implementation of an ABI (mostly intended for almost-but-not-quite-bare-metal programs). I'm pretty sure that exiting anything except 0 on a successful exit request by the guest will break usage of QEMU in scenarios like the gcc test suite. thanks -- PMM
