[PULL 1/3] linux-user/sh4: Deliver SIGILL on invalid instruction

[Helge Deller <deller@kernel.org>]

From: Mikulas Patocka <mpatocka@redhat.com>

On invalid instruction, deliver SIGILL rather than crashing the whole
process unconditionally.

Cc: qemu-stable@nongnu.org
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Reviewed-by: Yoshinori Sato <yoshinori.sato@nifty.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Helge Deller <deller@gmx.de>
---
 linux-user/sh4/cpu_loop.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/linux-user/sh4/cpu_loop.c b/linux-user/sh4/cpu_loop.c
index ee2958d0d9..0815b9c9bf 100644
--- a/linux-user/sh4/cpu_loop.c
+++ b/linux-user/sh4/cpu_loop.c
@@ -64,6 +64,13 @@ void cpu_loop(CPUSH4State *env)
             cpu_exec_step_atomic(cs);
             arch_interrupt = false;
             break;
+        case 0x180:
+            /* Illegal instruction */
+            /* fallthrough */
+        case 0x1a0:
+            /* Illegal instruction in delay slot */
+            force_sig_fault(TARGET_SIGILL, TARGET_ILL_ILLOPC, env->pc);
+            break;
         default:
             fprintf(stderr, "Unhandled trap: 0x%x\n", trapnr);
             cpu_dump_state(cs, stderr, 0);
-- 
2.54.0