kernel/arch/ppc32/include/exception.h

   1 /*
   2  * Copyright (C) 2006 Martin Decky
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  *
   9  * - Redistributions of source code must retain the above copyright
  10  *   notice, this list of conditions and the following disclaimer.
  11  * - Redistributions in binary form must reproduce the above copyright
  12  *   notice, this list of conditions and the following disclaimer in the
  13  *   documentation and/or other materials provided with the distribution.
  14  * - The name of the author may not be used to endorse or promote products
  15  *   derived from this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 /** @addtogroup ppc32
  30  * @{
  31  */
  32 /** @file
  33  */
  34
  35 #ifndef KERN_ppc32_EXCEPTION_H_
  36 #define KERN_ppc32_EXCEPTION_H_
  37
  38 #include <arch/types.h>
  39 #include <typedefs.h>
  40
  41 struct istate {
  42         uint32_t r0;
  43         uint32_t r2;
  44         uint32_t r3;
  45         uint32_t r4;
  46         uint32_t r5;
  47         uint32_t r6;
  48         uint32_t r7;
  49         uint32_t r8;
  50         uint32_t r9;
  51         uint32_t r10;
  52         uint32_t r11;
  53         uint32_t r13;
  54         uint32_t r14;
  55         uint32_t r15;
  56         uint32_t r16;
  57         uint32_t r17;
  58         uint32_t r18;
  59         uint32_t r19;
  60         uint32_t r20;
  61         uint32_t r21;
  62         uint32_t r22;
  63         uint32_t r23;
  64         uint32_t r24;
  65         uint32_t r25;
  66         uint32_t r26;
  67         uint32_t r27;
  68         uint32_t r28;
  69         uint32_t r29;
  70         uint32_t r30;
  71         uint32_t r31;
  72         uint32_t cr;
  73         uint32_t pc;
  74         uint32_t srr1;
  75         uint32_t lr;
  76         uint32_t ctr;
  77         uint32_t xer;
  78         uint32_t r12;
  79         uint32_t sp;
  80 };
  81
  82 static inline void istate_set_retaddr(istate_t *istate, uintptr_t retaddr)
  83 {
  84         istate->pc = retaddr;
  85 }
  86 /** Return true if exception happened while in userspace */
  87 #include <panic.h>
  88 static inline int istate_from_uspace(istate_t *istate)
  89 {
  90         panic("istate_from_uspace not yet implemented");
  91         return 0;
  92 }
  93 static inline unative_t istate_get_pc(istate_t *istate)
  94 {
  95         return istate->pc;
  96 }
  97
  98 #endif
  99
 100 /** @}
 101  */