Modifications from Erik Ivanenko <erik.ivanenko@utoronto.ca> to add

proper Multiboot signature to pc386 BSP.  This enables Grub to
recognize the image.

c/src/lib/libbsp/i386/pc386/startup/ldsegs.S

@@ -139,6 +139,8 @@ next_step:
 	outb	al, $0x21		/* is cascaded                      */
 	call	SYM(delay)
 
+	movw	$0xFFFB, SYM(i8259s_cache) /* set up same values in cache */
+	
 	jmp	SYM (_establish_stack)	# return to the bsp entry code
 
 /*-------------------------------------------------------------------------+
@@ -217,4 +219,8 @@ SYM(idtdesc):
 	
 END_CODE
 
+    .section .m_hdr
+	.long 0x1BADB002
+	.long 0
+	.long 0xE4524FFE
 END

c/src/lib/libbsp/i386/pc386/startup/linkcmds

@@ -35,9 +35,17 @@
 
 SECTIONS
 {
+/*  .m_hdr :  
+  {
+    . = ALIGN(4);
+    *(.m_hdr)
+  }
+*/
   .text :
   {
     _text_start = . ;
+    . = ALIGN(4);
+    *(.m_hdr)
     *(.text)
     . = ALIGN (16);
 
@@ -67,11 +75,9 @@ SECTIONS
 
     _etext = ALIGN( 0x10 ) ;
   }
-  .init : 
-  { *( .init ) } = 0x9090
-  .fini :
-  { *( .fini ) } = 0x9090
 
+  .init : { *(.init) } = 0x9090 
+  .fini : { *(.fini) } = 0x9090 
   .data ADDR( .fini ) + SIZEOF( .fini ):
   {
     _data_start = . ;
@@ -89,4 +95,4 @@ SECTIONS
     _end = . ;
     __end = . ;
   }
-}
+}