bsd/dev/ppc/chud/chud_bsd_callback.c

   1 /*
   2  * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22
  23 #include <stdint.h>
  24 #include <mach/boolean.h>
  25 #include <mach/mach_types.h>
  26
  27 #include <sys/syscall.h>
  28 #include <sys/types.h> /* u_int */
  29 #include <sys/proc.h> /* struct proc */
  30 #include <sys/systm.h> /* struct sysent */
  31
  32 struct exit_args {
  33     int rval;
  34 };
  35 extern void exit(struct proc *p, struct exit_args *uap, int *retval);
  36 extern struct sysent sysent[];
  37
  38 #pragma mark **** kern debug ****
  39 typedef void (*chudxnu_kdebug_callback_func_t)(uint32_t debugid, uint32_t arg0, uint32_t arg1, uint32_t arg2, uint32_t arg3, uint32_t arg4);
  40 static chudxnu_kdebug_callback_func_t kdebug_callback_fn = NULL;
  41
  42 extern void kdbg_control_chudxnu(int val, void *fn);
  43 extern unsigned int kdebug_enable;
  44
  45 static void chudxnu_private_kdebug_callback(unsigned int debugid, unsigned int arg0, unsigned int arg1, unsigned int arg2, unsigned int arg3, unsigned int arg4)
  46 {
  47     if(kdebug_callback_fn) {
  48         (kdebug_callback_fn)(debugid, arg0, arg1, arg2, arg3, arg4);
  49     }
  50 }
  51
  52 __private_extern__
  53 kern_return_t chudxnu_kdebug_callback_enter(chudxnu_kdebug_callback_func_t func)
  54 {
  55     kdebug_callback_fn = func;
  56
  57     kdbg_control_chud(TRUE, (void *)chudxnu_private_kdebug_callback);
  58     kdebug_enable |= 0x10;
  59
  60     return KERN_SUCCESS;
  61 }
  62
  63 __private_extern__
  64 kern_return_t chudxnu_kdebug_callback_cancel(void)
  65 {
  66     kdebug_callback_fn = NULL;
  67     kdbg_control_chud(FALSE, NULL);
  68     kdebug_enable &= ~(0x10);
  69
  70     return KERN_SUCCESS;
  71 }
  72
  73 #pragma mark **** task will exit ****
  74
  75 typedef kern_return_t (*chudxnu_exit_callback_func_t)(int pid);
  76
  77 __private_extern__
  78 kern_return_t chudxnu_exit_callback_enter(chudxnu_exit_callback_func_t func)
  79 {
  80
  81     return KERN_FAILURE;
  82
  83 }
  84
  85 __private_extern__
  86 kern_return_t chudxnu_exit_callback_cancel(void)
  87 {
  88
  89     return KERN_FAILURE;
  90
  91 }