tcg: Make CPUClass.debug_excp_handler optional

Signed-off-by: Eduardo Habkost <[email protected]>
Signed-off-by: Claudio Fontana <[email protected]>
Reviewed-by: Alex Bennée <[email protected]>
Message-Id: <20201212155530[email protected]>
Signed-off-by: Eduardo Habkost <[email protected]>

diff --git a/accel/tcg/cpu-exec.c b/accel/tcg/cpu-exec.c
index 36dde32ff97ce07cd63b42e90b82b6339e07128a..8689c544997abe620ef53e21c94be213471ac7df 100644 (file)
--- a/accel/tcg/cpu-exec.c
+++ b/accel/tcg/cpu-exec.c
@@ -482,7 +482,9 @@ static inline void cpu_handle_debug_exception(CPUState *cpu)
         }
     }
 
-    cc->debug_excp_handler(cpu);
+    if (cc->debug_excp_handler) {
+        cc->debug_excp_handler(cpu);
+    }
 }
 
 static inline bool cpu_handle_exception(CPUState *cpu, int *ret)