linux-user/sh4: Use force_sig_fault

Use the new function instead of setting up a target_siginfo_t
and calling queue_signal. Fill in the missing PC for SIGTRAP.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220107213243.212806-23-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user/sh4/cpu_loop.c

@@ -28,7 +28,6 @@ void cpu_loop(CPUSH4State *env)
 {
     CPUState *cs = env_cpu(env);
     int trapnr, ret;
-    target_siginfo_t info;
 
     while (1) {
         bool arch_interrupt = true;
@@ -60,10 +59,7 @@ void cpu_loop(CPUSH4State *env)
             /* just indicate that signals should be handled asap */
             break;
         case EXCP_DEBUG:
-            info.si_signo = TARGET_SIGTRAP;
-            info.si_errno = 0;
-            info.si_code = TARGET_TRAP_BRKPT;
-            queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
+            force_sig_fault(TARGET_SIGTRAP, TARGET_TRAP_BRKPT, env->pc);
             break;
         case EXCP_ATOMIC:
             cpu_exec_step_atomic(cs);