Some more memory leak fixes.

- delete SIM object
- delete i/o port to handler tables
- free plugin tables for enum parameters

bochs/config.cc

@@ -1871,6 +1871,15 @@ void bx_reset_options()
 #endif
 }
 
+void bx_cleanup_options()
+{
+  free(config_interface_list);
+  free(display_library_list);
+  free(vga_extension_names);
+  free(vga_extension_plugins);
+  free(pcislot_dev_list);
+}
+
 int bx_read_configuration(const char *rcfile)
 {
   // parse rcfile first, then parse arguments in order.

bochs/gui/siminterface.cc

@@ -358,7 +358,7 @@ void bx_init_siminterface()
   }
 }
 
-void bx_cleanup_siminterface()
+int bx_cleanup_siminterface()
 {
   if (siminterface_log) {
     delete siminterface_log;
@@ -370,6 +370,9 @@ void bx_cleanup_siminterface()
   }
   io->exit_log2();
   delete io;
+  int exit_code = SIM->get_exit_code();
+  delete SIM;
+  return exit_code;
 }
 
 bx_real_sim_c::bx_real_sim_c()

bochs/gui/siminterface.h

@@ -2,7 +2,7 @@
 // $Id$
 /////////////////////////////////////////////////////////////////////////
 //
-//  Copyright (C) 2001-2021  The Bochs Project
+//  Copyright (C) 2001-2023  The Bochs Project
 //
 //  This library is free software; you can redistribute it and/or
 //  modify it under the terms of the GNU Lesser General Public
@@ -770,7 +770,7 @@ public:
 BOCHSAPI extern bx_simulator_interface_c *SIM;
 
 extern void bx_init_siminterface();
-extern void bx_cleanup_siminterface();
+extern int bx_cleanup_siminterface();
 
 #if defined(__WXMSW__) || defined(WIN32)
 // Just to provide HINSTANCE, etc. in files that have not included bochs.h.

bochs/iodev/devices.cc

@@ -128,11 +128,6 @@ void bx_devices_c::init(BX_MEM_C *newmem)
   io_write_handlers.next = &io_write_handlers;
   io_write_handlers.prev = &io_write_handlers;
   io_write_handlers.usage_count = 0; // not used with the default handler
-
-  if (read_port_to_handler)
-    delete [] read_port_to_handler;
-  if (write_port_to_handler)
-    delete [] write_port_to_handler;
   read_port_to_handler = new struct io_handler_struct *[PORTS];
   write_port_to_handler = new struct io_handler_struct *[PORTS];
 
@@ -445,6 +440,11 @@ void bx_devices_c::exit()
   // delete default write handler name
   delete [] io_write_handlers.handler_name;
   io_write_handlers.handler_name = NULL;
+  // delete port-to-handler tables
+  if (read_port_to_handler)
+    delete [] read_port_to_handler;
+  if (write_port_to_handler)
+    delete [] write_port_to_handler;
   // delete IRQ handler names
   for (int i = 0; i < BX_MAX_IRQS; i++) {
     delete [] irq_handler_name[i];

bochs/iodev/sound/soundmod.cc

@@ -2,7 +2,7 @@
 // $Id$
 /////////////////////////////////////////////////////////////////////////
 //
-//  Copyright (C) 2011-2021  The Bochs Project
+//  Copyright (C) 2011-2023  The Bochs Project
 //
 //  This library is free software; you can redistribute it and/or
 //  modify it under the terms of the GNU Lesser General Public
@@ -45,6 +45,11 @@ bx_soundmod_ctl_c::bx_soundmod_ctl_c()
   put("soundctl", "SNDCTL");
 }
 
+bx_soundmod_ctl_c::~bx_soundmod_ctl_c()
+{
+  free(sound_driver_names);
+}
+
 void bx_soundmod_ctl_c::init()
 {
   Bit8u i, count = 0;

bochs/iodev/sound/soundmod.h

@@ -2,7 +2,7 @@
 // $Id$
 /////////////////////////////////////////////////////////////////////////
 //
-//  Copyright (C) 2011-2021  The Bochs Project
+//  Copyright (C) 2011-2023  The Bochs Project
 //
 //  This library is free software; you can redistribute it and/or
 //  modify it under the terms of the GNU Lesser General Public
@@ -29,7 +29,7 @@ class bx_soundlow_midiout_c;
 class BOCHSAPI bx_soundmod_ctl_c : public logfunctions {
 public:
   bx_soundmod_ctl_c();
-  ~bx_soundmod_ctl_c() {}
+  ~bx_soundmod_ctl_c();
   void init(void);
   void exit(void);
   const char **get_driver_names();

bochs/main.cc

@@ -68,6 +68,7 @@ int  bx_init_main(int argc, char *argv[]);
 void bx_init_hardware(void);
 void bx_plugin_ctrl_reset(bool init_done);
 void bx_init_options(void);
+void bx_cleanup_options(void);
 void bx_init_bx_dbg(void);
 
 static const char *divider = "========================================================================";
@@ -352,8 +353,9 @@ int bxmain(void)
 #endif
   plugin_cleanup();
   BX_INSTR_EXIT_ENV();
-  bx_cleanup_siminterface();
-  return SIM->get_exit_code();
+  int exit_code = bx_cleanup_siminterface();
+  bx_cleanup_options();
+  return exit_code;
 }
 
 #if defined(__WXMSW__)