Add a linux-user cpu_loop handler for HEX_CAUSE_MISALIGNED_LOAD and
HEX_CAUSE_MISALIGNED_STORE, raising SIGBUS for consistency with
hexswi.c's sysemu handling, even though linux-user's own alignment
check in accel/tcg/user-exec.c currently raises SIGBUS before
Hexagon's cause-code machinery is reached.
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>
Reviewed-by: Matheus Tavares Bernardino <matheus.bernardino@oss.qualcomm.com>
Signed-off-by: Brian Cain <brian.cain@oss.qualcomm.com>