Commit e7eee62a authored by Max Filippov's avatar Max Filippov Committed by Blue Swirl
Browse files

target-xtensa: return ENOSYS for unimplemented simcalls 



This prevents guest from proceeding with uninitialised garbage returned
from unimplemented simcalls.

Signed-off-by: default avatarMax Filippov <jcmvbkbc@gmail.com>
Signed-off-by: default avatarBlue Swirl <blauwirbel@gmail.com>
parent 0232cd35

target-xtensa/xtensa-semi.c

+2 −0
Original line number Diff line number Diff line
@@ -218,6 +218,8 @@ void HELPER(simcall)(CPUXtensaState *env) 


    default:

        qemu_log("%s(%d): not implemented\n", __func__, regs[2]);

        regs[2] = -1;

        regs[3] = ENOSYS;

        break;

    }

}