[patch] Gdbserver error codes

[Daniel Jacobowitz <drow@false.org>]

Thanks to Eli for making me look closer at this.  Parts of remote.c
will reject ENN; in particular, ENN will cause remote_write_bytes to return
an error but remote_read_bytes not to.  Thus the 0xffffffff gdbserver has
been printing instead of an error message for inaccessible memory regions.

Also updated some copyright dates.  Checked in.

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer

2004-02-26  Daniel Jacobowitz  <drow@mvista.com>

	* remote-utils.c (write_enn): Use "E01" instead of "ENN" for the
	error packet.
	* server.c, target.h: Update copyright years.

Index: gdbserver/remote-utils.c
===================================================================
RCS file: /cvs/src/src/gdb/gdbserver/remote-utils.c,v
retrieving revision 1.17
diff -u -p -r1.17 remote-utils.c
--- gdbserver/remote-utils.c	5 Jun 2003 14:26:58 -0000	1.17
+++ gdbserver/remote-utils.c	26 Feb 2004 15:08:02 -0000
@@ -1,6 +1,6 @@
 /* Remote utility routines for the remote server for GDB.
    Copyright 1986, 1989, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
-   2002
+   2002, 2003, 2004
    Free Software Foundation, Inc.
 
    This file is part of GDB.
@@ -487,9 +487,10 @@ write_ok (char *buf)
 void
 write_enn (char *buf)
 {
+  /* Some day, we should define the meanings of the error codes... */
   buf[0] = 'E';
-  buf[1] = 'N';
-  buf[2] = 'N';
+  buf[1] = '0';
+  buf[2] = '1';
   buf[3] = '\0';
 }
 
Index: gdbserver/server.c
===================================================================
RCS file: /cvs/src/src/gdb/gdbserver/server.c,v
retrieving revision 1.17
diff -u -p -r1.17 server.c
--- gdbserver/server.c	25 Feb 2004 20:41:29 -0000	1.17
+++ gdbserver/server.c	26 Feb 2004 15:08:02 -0000
@@ -1,5 +1,5 @@
 /* Main code for remote server for GDB.
-   Copyright 1989, 1993, 1994, 1995, 1997, 1998, 1999, 2000, 2002
+   Copyright 1989, 1993, 1994, 1995, 1997, 1998, 1999, 2000, 2002, 2003, 2004
    Free Software Foundation, Inc.
 
    This file is part of GDB.
Index: gdbserver/target.h
===================================================================
RCS file: /cvs/src/src/gdb/gdbserver/target.h,v
retrieving revision 1.9
diff -u -p -r1.9 target.h
--- gdbserver/target.h	25 Feb 2004 20:41:29 -0000	1.9
+++ gdbserver/target.h	26 Feb 2004 15:08:02 -0000
@@ -1,5 +1,5 @@
 /* Target operations for the remote server for GDB.
-   Copyright 2002
+   Copyright 2002, 2003, 2004
    Free Software Foundation, Inc.
 
    Contributed by MontaVista Software.