rom/kernel/remexceptionhandler.c

   1 /*
   2     Copyright © 1995-2013, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     Desc:
   6 */
   7
   8 #include <aros/kernel.h>
   9 #include <aros/libcall.h>
  10 #include <proto/exec.h>
  11
  12 #include <kernel_base.h>
  13 #include <kernel_cpu.h>
  14 #include <kernel_debug.h>
  15 #include <kernel_interrupts.h>
  16 #include <kernel_objects.h>
  17
  18 /* We use own implementation of bug(), so we don't need aros/debug.h */
  19 #define D(x)
  20
  21 /*****************************************************************************
  22
  23     NAME */
  24 #include <proto/kernel.h>
  25
  26         AROS_LH1(void, KrnRemExceptionHandler,
  27
  28 /*  SYNOPSIS */
  29         AROS_LHA(void *, handle, A0),
  30
  31 /*  LOCATION */
  32         struct KernelBase *, KernelBase, 15, Kernel)
  33
  34 /*  FUNCTION
  35         Remove previously installed CPU exception handler
  36
  37     INPUTS
  38         handle - an opaque handler returned by KrnAddExceptionHandler()
  39                  function
  40
  41     RESULT
  42         None
  43
  44     NOTES
  45
  46     EXAMPLE
  47
  48     BUGS
  49
  50     SEE ALSO
  51
  52     INTERNALS
  53
  54 ******************************************************************************/
  55 {
  56     AROS_LIBFUNC_INIT
  57
  58     struct IntrNode *h = handle;
  59
  60     if (h && (h->in_type == it_exception))
  61     {
  62         (void)goSuper();
  63
  64         Disable();
  65         REMOVE(h);
  66         Enable();
  67
  68         krnFreeIntrNode(h);
  69
  70         goUser();
  71     }
  72
  73     AROS_LIBFUNC_EXIT
  74 }