osfmk/i386/machdep_call.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License.  The rights granted to you under the
  10  * License may not be used to create, or enable the creation or
  11  * redistribution of, unlawful or unlicensed copies of an Apple operating
  12  * system, or to circumvent, violate, or enable the circumvention or
  13  * violation of, any terms of an Apple operating system software license
  14  * agreement.
  15  *
  16  * Please obtain a copy of the License at
  17  * http://www.opensource.apple.com/apsl/ and read it before using this
  18  * file.
  19  *
  20  * The Original Code and all software distributed under the License are
  21  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  22  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  23  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  25  * Please see the License for the specific language governing rights and
  26  * limitations under the License.
  27  *
  28  * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  29  */
  30 /*
  31  * Copyright (c) 1992 NeXT Computer, Inc.
  32  *
  33  * Machine dependent kernel call table defines.
  34  *
  35  * HISTORY
  36  *
  37  * 17 June 1992 ? at NeXT
  38  *      Created.
  39  */
  40
  41 typedef union {
  42         kern_return_t           (*args_0)(void);
  43         kern_return_t           (*args_1)(uint32_t);
  44         kern_return_t           (*args64_1)(uint64_t);
  45         kern_return_t           (*args_2)(uint32_t,uint32_t);
  46         kern_return_t           (*args_3)(uint32_t,uint32_t,uint32_t);
  47         kern_return_t           (*args_4)(uint32_t,uint32_t,uint32_t,uint32_t);
  48         kern_return_t           (*args_var)(uint32_t,...);
  49         int                     (*args_bsd_3)(int *, uint32_t,uint32_t,uint32_t);
  50 } machdep_call_routine_t;
  51
  52 #define MACHDEP_CALL_ROUTINE(func, args)        \
  53         { { .args_ ## args = func }, args, 0 }
  54
  55 #define MACHDEP_CALL_ROUTINE64(func, args)      \
  56         { { .args64_ ## args = func }, args, 0 }
  57
  58 #define MACHDEP_BSD_CALL_ROUTINE(func, args)    \
  59         { { .args_bsd_ ## args = func }, args, 1 }
  60
  61 typedef struct {
  62     machdep_call_routine_t      routine;
  63     int                         nargs;
  64     int                         bsd_style;
  65 } machdep_call_t;
  66
  67 extern machdep_call_t           machdep_call_table[];
  68 extern machdep_call_t           machdep_call_table64[];
  69
  70 extern int                      machdep_call_count;
  71
  72 extern kern_return_t            thread_get_cthread_self(void);
  73 extern kern_return_t            thread_set_cthread_self(uint32_t);
  74 extern kern_return_t            thread_fast_set_cthread_self(uint32_t);
  75 extern kern_return_t            thread_fast_set_cthread_self64(uint64_t);
  76 extern kern_return_t            thread_set_user_ldt(uint32_t,uint32_t,uint32_t);
  77
  78 extern int                      i386_set_ldt(int *,uint32_t,uint32_t,uint32_t);
  79 extern int                      i386_get_ldt(int *,uint32_t,uint32_t,uint32_t);
  80
  81 extern void                     machdep_syscall(x86_saved_state_t *);
  82 extern void                     machdep_syscall64(x86_saved_state_t *);