Since qemu does not implement a sparc coprocessor, all such
instructions raise this trap.  Because of that, we never raise
the coprocessor exception trap, which would be vector 0x28.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 linux-user/sparc/cpu_loop.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/linux-user/sparc/cpu_loop.c b/linux-user/sparc/cpu_loop.c
index 42e92ef859..8985d10ba1 100644
--- a/linux-user/sparc/cpu_loop.c
+++ b/linux-user/sparc/cpu_loop.c
@@ -315,6 +315,10 @@ void cpu_loop (CPUSPARCState *env)
             /* Note do_privact defers to do_privop. */
             force_sig_fault(TARGET_SIGILL, TARGET_ILL_PRVOPC, env->pc);
             break;
+#else
+        case TT_NCP_INSN:
+            force_sig_fault(TARGET_SIGILL, TARGET_ILL_COPROC, env->pc);
+            break;
 #endif
         case EXCP_ATOMIC:
             cpu_exec_step_atomic(cs);
-- 
2.34.1