* moxie/crt0.S (_start): Clear BSS at startup. Register _fini()

with atexit().
        * moxie/sim-open.S: Fix comment.

libgloss/ChangeLog

@@ -1,3 +1,9 @@
+2009-07-01  Anthony Green  <green@moxielogic.com>
+
+	* moxie/crt0.S (_start): Clear BSS at startup.  Register _fini()
+	with atexit().
+	* moxie/sim-open.S: Fix comment.
+
 2009-06-19  Joseph Myers  <joseph@codesourcery.com>
 
 	* Makefile.in (html, pdf): New.

libgloss/moxie/crt0.S

@@ -1,6 +1,6 @@
 /* crt0.S -- startup file for moxie
  * 
- * Copyright (c) 2008 Anthony Green
+ * Copyright (c) 2008, 2009  Anthony Green
  *
  * The authors hereby grant permission to use, copy, modify, distribute,
  * and license this software and its documentation for any purpose, provided
@@ -23,12 +23,22 @@ _start:
 	ldi.l	$fp, 0x0	/* zero fp to allow unwinders to stop */
 
 	/* zero the bss area */
-	/* TODO */
-	/* call memset */
+	dec	$sp, 12
+	ldi.l	$r0, __bss_start__
+	ldi.l	$r1, __bss_end__
+	sub.l	$r1, $r0
+	sto.l	8($sp), $r1
+	ldi.l	$r1, 0
+	jsra	memset
+	inc	$sp, 12
 
-	/* Call _init to invoke static constructors, etc. */
+	/* Call _init to invoke static constructors, etc.  */
 	jsra	_init
 	
+	/* Call _fini at exit time for static destructors.  */
+	ldi.l	$r0, _fini
+	jsra	atexit
+	
 	/* Set argc and argv.  These are populated by the simulator.  */
 	lda.l	$r0, 0x4
 	ldi.l	$r1, 0x8

libgloss/moxie/sim-open.S

@@ -1,5 +1,5 @@
 /*
- * sim-open.S -- open interface for frv simulator
+ * sim-open.S -- open interface for moxie simulator
  * 
  * Copyright (c) 2008 Anthony Green
  *