sim: switch config.h usage to defs.h

The defs.h header will take care of including the various config.h
headers.  For now, it's just config.h, but we'll add more when we
integrate gnulib in.

This header should be used instead of config.h, and should be the
first include in every .c file.  We won't rely on the old behavior
where we expected files to include the port's sim-main.h which then
includes the common sim-basics.h which then includes config.h.  We
have a ton of code that includes things before sim-main.h, and it
sometimes needs to be that way.  Creating a dedicated header avoids
the ordering mess and implicit inclusion that shows up otherwise.

sim/arm/ChangeLog

@@ -1,3 +1,10 @@
+2021-05-16  Mike Frysinger  <vapier@gentoo.org>
+
+	* armcopro.c, armemu.c, arminit.c, armsupp.c, armvirt.c, iwmmxt.c,
+	maverick.c, thumbemu.c: Include defs.h.
+	* armos.c, wrapper.c: Replace config.h include with defs.h.
+	* armdefs.h: Delete config.h include.
+
 2021-05-16  Mike Frysinger  <vapier@gentoo.org>
 
 	* config.in, configure: Regenerate.

sim/arm/armcopro.c

@@ -14,6 +14,9 @@
     You should have received a copy of the GNU General Public License
     along with this program; if not, see <http://www.gnu.org/licenses/>.  */
 
+/* This must come before any other includes.  */
+#include "defs.h"
+
 #include "armdefs.h"
 #include "armos.h"
 #include "armemu.h"

sim/arm/armdefs.h

@@ -14,7 +14,6 @@
     You should have received a copy of the GNU General Public License
     along with this program; if not, see <http://www.gnu.org/licenses/>. */
 
-#include "config.h"
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdint.h>

sim/arm/armemu.c

@@ -15,6 +15,9 @@
     You should have received a copy of the GNU General Public License
     along with this program; if not, see <http://www.gnu.org/licenses/>.  */
 
+/* This must come before any other includes.  */
+#include "defs.h"
+
 #include "armdefs.h"
 #include "armemu.h"
 #include "armos.h"

sim/arm/arminit.c

@@ -14,6 +14,9 @@
     You should have received a copy of the GNU General Public License
     along with this program; if not, see <http://www.gnu.org/licenses/>. */
 
+/* This must come before any other includes.  */
+#include "defs.h"
+
 #include <string.h>
 
 #include "armdefs.h"

sim/arm/armos.c

@@ -21,7 +21,9 @@
    fun, and definign VAILDATE will define SWI 1 to enter SVC mode, and SWI
    0x11 to halt the emulator.  */
 
-#include "config.h"
+/* This must come before any other includes.  */
+#include "defs.h"
+
 #include "ansidecl.h"
 #include "libiberty.h"
 

sim/arm/armsupp.c

@@ -14,6 +14,9 @@
     You should have received a copy of the GNU General Public License
     along with this program; if not, see <http://www.gnu.org/licenses/>. */
 
+/* This must come before any other includes.  */
+#include "defs.h"
+
 #include "armdefs.h"
 #include "armemu.h"
 #include "ansidecl.h"

sim/arm/armvirt.c

@@ -22,6 +22,9 @@
    freed as they might be needed again. A single area of memory may be
    defined to generate aborts.  */
 
+/* This must come before any other includes.  */
+#include "defs.h"
+
 #include "armos.h"
 #include "armdefs.h"
 #include "ansidecl.h"

sim/arm/iwmmxt.c

@@ -15,6 +15,9 @@
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>. */
 
+/* This must come before any other includes.  */
+#include "defs.h"
+
 #include <stdlib.h>
 #include <string.h>
 

sim/arm/maverick.c

@@ -15,6 +15,9 @@
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>. */
 
+/* This must come before any other includes.  */
+#include "defs.h"
+
 #include <assert.h>
 #include "armdefs.h"
 #include "ansidecl.h"

sim/arm/thumbemu.c

@@ -18,6 +18,9 @@
 instruction into its corresponding ARM instruction, and using the
 existing ARM simulator.  */
 
+/* This must come before any other includes.  */
+#include "defs.h"
+
 #ifndef MODET			/* required for the Thumb instruction support */
 #if 1
 #error "MODET needs to be defined for the Thumb world to work"

sim/arm/wrapper.c

@@ -20,7 +20,9 @@
    run.c and gdb (when the simulator is linked with gdb).
    All simulator interaction should go through this file.  */
 
-#include "config.h"
+/* This must come before any other includes.  */
+#include "defs.h"
+
 #include <stdio.h>
 #include <stdarg.h>
 #include <stdlib.h>