sim: sim-close: unify sim_close logic

Other than the nice advantage of all sims having to declare one fewer
common function, this also fixes leakage in pretty much every sim.
Many were not freeing any resources, and a few were inconsistent as
to the ones they did.  Now we have a single module that takes care of
all the logic for us.

Most of the non-cgen based ones could be deleted outright.  The cgen
ones required adding a callback to the arch-specific cleanup func.
The few that still have close callbacks are to manage their internal
state.

We do not convert erc32, m32c, ppc, rl78, or rx as they do not use
the common sim core.

sim/mips/ChangeLog

@@ -1,3 +1,11 @@
+2015-11-14  Mike Frysinger  <vapier@gentoo.org>
+
+	* interp.c (sim_close): Rename to ...
+	(mips_sim_close): ... this.  Delete calls to sim_module_uninstall and
+	sim_io_shutdown.
+	* sim-main.h (mips_sim_close): Declare.
+	(SIM_CLOSE_HOOK): Define.
+
 2015-09-25  Andrew Bennett  <andrew.bennett@imgtec.com>
 	    Ali Lown  <ali.lown@imgtec.com>
 

sim/mips/interp.c

@@ -834,34 +834,15 @@ get_insn_name (sim_cpu *cpu, int i)
 }
 
 void
-sim_close (SIM_DESC sd, int quitting)
+mips_sim_close (SIM_DESC sd, int quitting)
 {
-#ifdef DEBUG
-  printf("DBG: sim_close: entered (quitting = %d)\n",quitting);
-#endif
-
-
-  /* "quitting" is non-zero if we cannot hang on errors */
-
-  /* shut down modules */
-  sim_module_uninstall (sd);
-
-  /* Ensure that any resources allocated through the callback
-     mechanism are released: */
-  sim_io_shutdown (sd);
-
 #if WITH_TRACE_ANY_P
   if (tracefh != NULL && tracefh != stderr)
    fclose(tracefh);
   tracefh = NULL;
 #endif
-
-  /* FIXME - free SD */
-
-  return;
 }
 
-
 int
 sim_write (SIM_DESC sd, SIM_ADDR addr, const unsigned char *buffer, int size)
 {

sim/mips/sim-main.h

@@ -474,6 +474,8 @@ struct _sim_cpu {
   sim_cpu_base base;
 };
 
+extern void mips_sim_close (SIM_DESC sd, int quitting);
+#define SIM_CLOSE_HOOK(...) mips_sim_close (__VA_ARGS__)
 
 /* MIPS specific simulator watch config */