osfmk/mach/ppc/_types.h

   1 /*
   2  * Copyright (c) 2004 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  * @OSF_COPYRIGHT@
  24  */
  25
  26 #ifndef _MACH_PPC__TYPES_H_
  27 #define _MACH_PPC__TYPES_H_
  28
  29 /*
  30  * ppc_thread_state is the structure that is exported to user threads for
  31  * use in status/mutate calls.  This structure should never change.
  32  *
  33  */
  34
  35 #ifndef _POSIX_C_SOURCE
  36 struct ppc_thread_state
  37 #else /* _POSIX_C_SOURCE */
  38 struct __darwin_ppc_thread_state
  39 #endif /* _POSIX_C_SOURCE */
  40 {
  41         unsigned int srr0;      /* Instruction address register (PC) */
  42         unsigned int srr1;      /* Machine state register (supervisor) */
  43         unsigned int r0;
  44         unsigned int r1;
  45         unsigned int r2;
  46         unsigned int r3;
  47         unsigned int r4;
  48         unsigned int r5;
  49         unsigned int r6;
  50         unsigned int r7;
  51         unsigned int r8;
  52         unsigned int r9;
  53         unsigned int r10;
  54         unsigned int r11;
  55         unsigned int r12;
  56         unsigned int r13;
  57         unsigned int r14;
  58         unsigned int r15;
  59         unsigned int r16;
  60         unsigned int r17;
  61         unsigned int r18;
  62         unsigned int r19;
  63         unsigned int r20;
  64         unsigned int r21;
  65         unsigned int r22;
  66         unsigned int r23;
  67         unsigned int r24;
  68         unsigned int r25;
  69         unsigned int r26;
  70         unsigned int r27;
  71         unsigned int r28;
  72         unsigned int r29;
  73         unsigned int r30;
  74         unsigned int r31;
  75
  76         unsigned int cr;        /* Condition register */
  77         unsigned int xer;       /* User's integer exception register */
  78         unsigned int lr;        /* Link register */
  79         unsigned int ctr;       /* Count register */
  80         unsigned int mq;        /* MQ register (601 only) */
  81
  82         unsigned int vrsave;    /* Vector Save Register */
  83 };
  84
  85 #ifndef _POSIX_C_SOURCE
  86 #pragma pack(4)                                                 /* Make sure the structure stays as we defined it */
  87 struct ppc_thread_state64 {
  88         unsigned long long srr0;        /* Instruction address register (PC) */
  89         unsigned long long srr1;        /* Machine state register (supervisor) */
  90         unsigned long long r0;
  91         unsigned long long r1;
  92         unsigned long long r2;
  93         unsigned long long r3;
  94         unsigned long long r4;
  95         unsigned long long r5;
  96         unsigned long long r6;
  97         unsigned long long r7;
  98         unsigned long long r8;
  99         unsigned long long r9;
 100         unsigned long long r10;
 101         unsigned long long r11;
 102         unsigned long long r12;
 103         unsigned long long r13;
 104         unsigned long long r14;
 105         unsigned long long r15;
 106         unsigned long long r16;
 107         unsigned long long r17;
 108         unsigned long long r18;
 109         unsigned long long r19;
 110         unsigned long long r20;
 111         unsigned long long r21;
 112         unsigned long long r22;
 113         unsigned long long r23;
 114         unsigned long long r24;
 115         unsigned long long r25;
 116         unsigned long long r26;
 117         unsigned long long r27;
 118         unsigned long long r28;
 119         unsigned long long r29;
 120         unsigned long long r30;
 121         unsigned long long r31;
 122
 123         unsigned int cr;                        /* Condition register */
 124         unsigned long long xer;         /* User's integer exception register */
 125         unsigned long long lr;          /* Link register */
 126         unsigned long long ctr;         /* Count register */
 127
 128         unsigned int vrsave;            /* Vector Save Register */
 129 };
 130
 131 #pragma pack()
 132 #endif /* _POSIX_C_SOURCE */
 133
 134 /* This structure should be double-word aligned for performance */
 135
 136 #ifndef _POSIX_C_SOURCE
 137 struct ppc_float_state
 138 #else /* _POSIX_C_SOURCE */
 139 struct __darwin_ppc_float_state
 140 #endif /* _POSIX_C_SOURCE */
 141 {
 142         double  fpregs[32];
 143
 144         unsigned int fpscr_pad; /* fpscr is 64 bits, 32 bits of rubbish */
 145         unsigned int fpscr;     /* floating point status register */
 146 };
 147
 148 #pragma pack(4)         /* Make sure the structure stays as we defined it */
 149
 150 #ifndef _POSIX_C_SOURCE
 151 struct ppc_vector_state
 152 #else /* _POSIX_C_SOURCE */
 153 struct __darwin_ppc_vector_state
 154 #endif /* _POSIX_C_SOURCE */
 155 {
 156 #if defined(__LP64__)
 157         unsigned int    save_vr[32][4];
 158         unsigned int    save_vscr[4];
 159 #else
 160         unsigned long   save_vr[32][4];
 161         unsigned long   save_vscr[4];
 162 #endif
 163         unsigned int    save_pad5[4];
 164         unsigned int    save_vrvalid;                   /* VRs that have been saved */
 165         unsigned int    save_pad6[7];
 166 };
 167 #pragma pack()
 168
 169 /*
 170  * ppc_exception_state
 171  *
 172  * This structure corresponds to some additional state of the user
 173  * registers as saved in the PCB upon kernel entry. They are only
 174  * available if an exception is passed out of the kernel, and even
 175  * then not all are guaranteed to be updated.
 176  *
 177  * Some padding is included in this structure which allows space for
 178  * servers to store temporary values if need be, to maintain binary
 179  * compatiblity.
 180  */
 181
 182 /* Exception state for 32-bit thread (on 32-bit processor) */
 183 /* Still available on 64-bit processors, but may fall short */
 184 /* of covering the full potential state (hi half available). */
 185
 186 #pragma pack(4) /* Make sure the structure stays as we defined it */
 187
 188 #ifndef _POSIX_C_SOURCE
 189 struct ppc_exception_state
 190 #else /* _POSIX_C_SOURCE */
 191 struct __darwin_ppc_exception_state
 192 #endif /* _POSIX_C_SOURCE */
 193 {
 194 #if defined(__LP64__)
 195         unsigned int dar;                       /* Fault registers for coredump */
 196         unsigned int dsisr;
 197         unsigned int exception; /* number of powerpc exception taken */
 198         unsigned int pad0;                      /* align to 16 bytes */
 199         unsigned int pad1[4];           /* space in PCB "just in case" */
 200 #else
 201         unsigned long dar;                      /* Fault registers for coredump */
 202         unsigned long dsisr;
 203         unsigned long exception;        /* number of powerpc exception taken */
 204         unsigned long pad0;                     /* align to 16 bytes */
 205         unsigned long pad1[4];          /* space in PCB "just in case" */
 206 #endif
 207 };
 208
 209 #ifndef _POSIX_C_SOURCE
 210 struct ppc_exception_state64 {
 211         unsigned long long dar;         /* Fault registers for coredump */
 212 #if defined(__LP64__)
 213         unsigned int  dsisr;
 214         unsigned int  exception;        /* number of powerpc exception taken */
 215         unsigned int  pad1[4];          /* space in PCB "just in case" */
 216 #else
 217         unsigned long dsisr;
 218         unsigned long exception;        /* number of powerpc exception taken */
 219         unsigned long pad1[4];          /* space in PCB "just in case" */
 220 #endif
 221 };
 222 #endif /* _POSIX_C_SOURCE */
 223
 224 #pragma pack()
 225
 226 #endif /* _MACH_PPC__TYPES_H_ */