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/* err_hurd added by roland@gnu.ai.mit.edu for GNU Hurd.
*
* Mach Operating System
* Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
/*
* (pre-GNU) HISTORY
*
* Revision 2.6 93/01/14 17:41:31 danner
* Standardized include symbol name.
* [92/06/10 pds]
*
* Revision 2.5 92/03/31 15:18:11 rpd
* Added err_bootstrap for bootstrap errors.
* [92/03/09 rpd]
*
* Revision 2.4 91/05/14 16:51:24 mrt
* Correcting copyright
*
* Revision 2.3 91/02/05 17:31:48 mrt
* Changed to new Mach copyright
* [91/02/01 17:16:50 mrt]
*
* Revision 2.2 90/06/02 14:57:47 rpd
* Added err_mach_ipc for new IPC.
* [90/03/26 22:28:42 rpd]
*
* Revision 2.1 89/08/03 16:02:07 rwd
* Created.
*
* Revision 2.4 89/02/25 18:13:18 gm0w
* Changes for cleanup.
*
* Revision 2.3 89/02/07 00:51:57 mwyoung
* Relocated from sys/error.h
*
* Revision 2.2 88/10/18 00:37:31 mwyoung
* Added {system,sub and code}_emask
* [88/10/17 17:06:58 mrt]
*
* Added {system,sub and code}_emask
*
* 12-May-88 Mary Thompson (mrt) at Carnegie Mellon
* Changed mach_error_t from unsigned int to kern_return_t
* which is a 32 bit integer regardless of machine type.
* unsigned int was incompatible with old usages of mach_error.
*
* 10-May-88 Douglas Orr (dorr) at Carnegie-Mellon University
* Missing endif replaced
*
* 5-May-88 Mary Thompson (mrt) at Carnegie Mellon
* Changed typedef of mach_error_t from long to unsigned int
* to keep our Camelot users happy. Also moved the nonkernel
* function declarations from here to mach_error.h.
*
* 10-Feb-88 Douglas Orr (dorr) at Carnegie-Mellon University
* Created.
*
*/
/*
* File: mach/error.h
* Purpose:
* error module definitions
*
*/
#ifndef _MACH_ERROR_H_
#define _MACH_ERROR_H_
#include <mach/kern_return.h>
/*
* error number layout as follows:
*
* hi lo
* | system(6) | subsystem(12) | code(14) |
*/
#define err_none (mach_error_t)0
#define ERR_SUCCESS (mach_error_t)0
#define ERR_ROUTINE_NIL (mach_error_fn_t)0
#define err_system(x) (((x)&0x3f)<<26)
#define err_sub(x) (((x)&0xfff)<<14)
#define err_get_system(err) (((err)>>26)&0x3f)
#define err_get_sub(err) (((err)>>14)&0xfff)
#define err_get_code(err) ((err)&0x3fff)
#define system_emask (err_system(0x3f))
#define sub_emask (err_sub(0xfff))
#define code_emask (0x3fff)
/* major error systems */
#define err_kern err_system(0x0) /* kernel */
#define err_us err_system(0x1) /* user space library */
#define err_server err_system(0x2) /* user space servers */
#define err_ipc err_system(0x3) /* old ipc errors */
#define err_mach_ipc err_system(0x4) /* mach-ipc errors */
#define err_bootstrap err_system(0x5) /* bootstrap errors */
#define err_hurd err_system(0x10) /* GNU Hurd server errors */
#define err_local err_system(0x3e) /* user defined errors */
#define err_ipc_compat err_system(0x3f) /* (compatibility) mach-ipc errors */
#define err_max_system 0x3f
/* unix errors get lumped into one subsystem */
#define unix_err(errno) (err_kern|err_sub(3)|errno)
typedef kern_return_t mach_error_t;
/* typedef mach_error_t (* mach_error_fn_t)(); */
#endif /* _MACH_ERROR_H_ */
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