gdb 7.6: Fix info mem command for 32 bits host/64 bits target

[Udma Catalin-Dan-B32721 <B32721@freescale.com>]

Hi,
I found an issue with the "info mem" command when running gdb on 32 bits host for 64 bits target architecture.
"info mem" command truncates the target address to 32 bits, like in the example below:

    (gdb) set architecture powerpc:common64
    The target architecture is assumed to be powerpc:common64
    (gdb) mem 0x100000000 0x200000000 rw
    (gdb) info mem
    Using user-defined memory regions.
    Num Enb Low Addr           High Addr          Attrs
    1   y   0x0000000000000000 0x0000000000000000 rw nocache

Please find below the proposed patch. Please let me know your comments.

Regards,
Catalin


Subject: [PATCHH] Fix info mem command for 32 bits host/64 bits target

When running gdb on 32 bits host for 64 bits target, info mem command
truncates the target address to 32 bits, like in the example below
	(gdb) set architecture powerpc:common64 
	(gdb) mem 0x100000000 0x200000000 rw
	(gdb) info mem
	1   y  	0x0000000000000000 0x0000000000000000 rw nocache 

Signed-off-by: Catalin Udma <catalin.udma@freescale.com>
---
--- gdb/memattr.c.orig	2013-06-27 17:28:20.000000000 +0300
+++ gdb/memattr.c	2013-06-27 17:29:16.000000000 +0300
@@ -447,9 +447,9 @@
 		       m->number,
 		       m->enabled_p ? 'y' : 'n');
       if (gdbarch_addr_bit (target_gdbarch ()) <= 32)
-	tmp = hex_string_custom ((unsigned long) m->lo, 8);
+	tmp = hex_string_custom ((LONGEST) m->lo, 8);
       else
-	tmp = hex_string_custom ((unsigned long) m->lo, 16);
+	tmp = hex_string_custom ( (LONGEST) m->lo, 16);
       
       printf_filtered ("%s ", tmp);
 
@@ -458,14 +458,14 @@
 	  if (m->hi == 0)
 	    tmp = "0x100000000";
 	  else
-	    tmp = hex_string_custom ((unsigned long) m->hi, 8);
+	    tmp = hex_string_custom ((LONGEST) m->hi, 8);
 	}
       else
 	{
 	  if (m->hi == 0)
 	    tmp = "0x10000000000000000";
 	  else
-	    tmp = hex_string_custom ((unsigned long) m->hi, 16);
+	    tmp = hex_string_custom ((LONGEST) m->hi, 16);
 	}
 
       printf_filtered ("%s ", tmp);