1 /*
2 * Copyright (C) 2008 Michael Brown <mbrown@fensystems.co.uk>.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of the
7 * License, or any later version.
8 *
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
17 */
18
19 FILE_LICENCE ( GPL2_OR_LATER );
20
21 #include <stdio.h>
22 #include <gpxe/efi/efi.h>
23
24 /** @file
25 *
26 * gPXE error message formatting for EFI
27 *
28 */
29
30 /**
31 * Format EFI status code
32 *
33 * @v efirc EFI status code
34 * @v efi_strerror EFI status code string
35 */
efi_strerror(EFI_STATUS efirc)36 const char * efi_strerror ( EFI_STATUS efirc ) {
37 static char errbuf[32];
38
39 if ( ! efirc )
40 return "No error";
41
42 snprintf ( errbuf, sizeof ( errbuf ), "Error %lld",
43 ( unsigned long long ) ( efirc ^ MAX_BIT ) );
44 return errbuf;
45 }
46