cpu-exec: Rename cpu_resume_from_signal() to cpu_loop_exit_noexc()

The function cpu_resume_from_signal() is now always called with a
NULL puc argument, and is rather misnamed since it is never called
from a signal handler. It is essentially forcing an exit to the
top level cpu loop but without raising any exception, so rename
it to cpu_loop_exit_noexc() and drop the useless unused argument.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Sergey Fedorov <sergey.fedorov@linaro.org>
Acked-by: Eduardo Habkost <ehabkost@redhat.com>
Acked-by: Riku Voipio <riku.voipio@linaro.org>
Message-id: 1463494687-25947-4-git-send-email-peter.maydell@linaro.org
diff --git a/translate-all.c b/translate-all.c
index ff588f3..118e7d3 100644
--- a/translate-all.c
+++ b/translate-all.c
@@ -1395,7 +1395,7 @@
            modifying the memory. It will ensure that it cannot modify
            itself */
         tb_gen_code(cpu, current_pc, current_cs_base, current_flags, 1);
-        cpu_resume_from_signal(cpu, NULL);
+        cpu_loop_exit_noexc(cpu);
     }
 #endif
 }
@@ -1654,7 +1654,7 @@
        repeating the fault, which is horribly inefficient.
        Better would be to execute just this insn uncached, or generate a
        second new TB.  */
-    cpu_resume_from_signal(cpu, NULL);
+    cpu_loop_exit_noexc(cpu);
 }
 
 void tb_flush_jmp_cache(CPUState *cpu, target_ulong addr)