osfmk/mach/ppc/_structs.h

   1 /*
   2  * Copyright (c) 2004 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_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 License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 /*
  29  * @OSF_COPYRIGHT@
  30  */
  31
  32 #ifndef _MACH_PPC__STRUCTS_H_
  33 #define _MACH_PPC__STRUCTS_H_
  34
  35 #include <sys/cdefs.h>
  36
  37 /*
  38  * ppc_thread_state is the structure that is exported to user threads for
  39  * use in status/mutate calls.  This structure should never change.
  40  *
  41  */
  42
  43 #if __DARWIN_UNIX03
  44 #define _STRUCT_PPC_THREAD_STATE        struct __darwin_ppc_thread_state
  45 _STRUCT_PPC_THREAD_STATE
  46 {
  47         unsigned int __srr0;    /* Instruction address register (PC) */
  48         unsigned int __srr1;    /* Machine state register (supervisor) */
  49         unsigned int __r0;
  50         unsigned int __r1;
  51         unsigned int __r2;
  52         unsigned int __r3;
  53         unsigned int __r4;
  54         unsigned int __r5;
  55         unsigned int __r6;
  56         unsigned int __r7;
  57         unsigned int __r8;
  58         unsigned int __r9;
  59         unsigned int __r10;
  60         unsigned int __r11;
  61         unsigned int __r12;
  62         unsigned int __r13;
  63         unsigned int __r14;
  64         unsigned int __r15;
  65         unsigned int __r16;
  66         unsigned int __r17;
  67         unsigned int __r18;
  68         unsigned int __r19;
  69         unsigned int __r20;
  70         unsigned int __r21;
  71         unsigned int __r22;
  72         unsigned int __r23;
  73         unsigned int __r24;
  74         unsigned int __r25;
  75         unsigned int __r26;
  76         unsigned int __r27;
  77         unsigned int __r28;
  78         unsigned int __r29;
  79         unsigned int __r30;
  80         unsigned int __r31;
  81
  82         unsigned int __cr;      /* Condition register */
  83         unsigned int __xer;     /* User's integer exception register */
  84         unsigned int __lr;      /* Link register */
  85         unsigned int __ctr;     /* Count register */
  86         unsigned int __mq;      /* MQ register (601 only) */
  87
  88         unsigned int __vrsave;  /* Vector Save Register */
  89 };
  90 #else /* !__DARWIN_UNIX03 */
  91 #define _STRUCT_PPC_THREAD_STATE        struct ppc_thread_state
  92 _STRUCT_PPC_THREAD_STATE
  93 {
  94         unsigned int srr0;      /* Instruction address register (PC) */
  95         unsigned int srr1;      /* Machine state register (supervisor) */
  96         unsigned int r0;
  97         unsigned int r1;
  98         unsigned int r2;
  99         unsigned int r3;
 100         unsigned int r4;
 101         unsigned int r5;
 102         unsigned int r6;
 103         unsigned int r7;
 104         unsigned int r8;
 105         unsigned int r9;
 106         unsigned int r10;
 107         unsigned int r11;
 108         unsigned int r12;
 109         unsigned int r13;
 110         unsigned int r14;
 111         unsigned int r15;
 112         unsigned int r16;
 113         unsigned int r17;
 114         unsigned int r18;
 115         unsigned int r19;
 116         unsigned int r20;
 117         unsigned int r21;
 118         unsigned int r22;
 119         unsigned int r23;
 120         unsigned int r24;
 121         unsigned int r25;
 122         unsigned int r26;
 123         unsigned int r27;
 124         unsigned int r28;
 125         unsigned int r29;
 126         unsigned int r30;
 127         unsigned int r31;
 128
 129         unsigned int cr;        /* Condition register */
 130         unsigned int xer;       /* User's integer exception register */
 131         unsigned int lr;        /* Link register */
 132         unsigned int ctr;       /* Count register */
 133         unsigned int mq;        /* MQ register (601 only) */
 134
 135         unsigned int vrsave;    /* Vector Save Register */
 136 };
 137 #endif /* __DARWIN_UNIX03 */
 138
 139 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 140
 141 #pragma pack(4)                 /* Make sure the structure stays as we defined it */
 142
 143 #if __DARWIN_UNIX03
 144 #define _STRUCT_PPC_THREAD_STATE64      struct __darwin_ppc_thread_state64
 145 _STRUCT_PPC_THREAD_STATE64
 146 {
 147         unsigned long long __srr0;      /* Instruction address register (PC) */
 148         unsigned long long __srr1;      /* Machine state register (supervisor) */
 149         unsigned long long __r0;
 150         unsigned long long __r1;
 151         unsigned long long __r2;
 152         unsigned long long __r3;
 153         unsigned long long __r4;
 154         unsigned long long __r5;
 155         unsigned long long __r6;
 156         unsigned long long __r7;
 157         unsigned long long __r8;
 158         unsigned long long __r9;
 159         unsigned long long __r10;
 160         unsigned long long __r11;
 161         unsigned long long __r12;
 162         unsigned long long __r13;
 163         unsigned long long __r14;
 164         unsigned long long __r15;
 165         unsigned long long __r16;
 166         unsigned long long __r17;
 167         unsigned long long __r18;
 168         unsigned long long __r19;
 169         unsigned long long __r20;
 170         unsigned long long __r21;
 171         unsigned long long __r22;
 172         unsigned long long __r23;
 173         unsigned long long __r24;
 174         unsigned long long __r25;
 175         unsigned long long __r26;
 176         unsigned long long __r27;
 177         unsigned long long __r28;
 178         unsigned long long __r29;
 179         unsigned long long __r30;
 180         unsigned long long __r31;
 181
 182         unsigned int __cr;              /* Condition register */
 183         unsigned long long __xer;       /* User's integer exception register */
 184         unsigned long long __lr;        /* Link register */
 185         unsigned long long __ctr;       /* Count register */
 186
 187         unsigned int __vrsave;          /* Vector Save Register */
 188 };
 189 #else /* !__DARWIN_UNIX03 */
 190 #define _STRUCT_PPC_THREAD_STATE64      struct ppc_thread_state64
 191 _STRUCT_PPC_THREAD_STATE64
 192 {
 193         unsigned long long srr0;        /* Instruction address register (PC) */
 194         unsigned long long srr1;        /* Machine state register (supervisor) */
 195         unsigned long long r0;
 196         unsigned long long r1;
 197         unsigned long long r2;
 198         unsigned long long r3;
 199         unsigned long long r4;
 200         unsigned long long r5;
 201         unsigned long long r6;
 202         unsigned long long r7;
 203         unsigned long long r8;
 204         unsigned long long r9;
 205         unsigned long long r10;
 206         unsigned long long r11;
 207         unsigned long long r12;
 208         unsigned long long r13;
 209         unsigned long long r14;
 210         unsigned long long r15;
 211         unsigned long long r16;
 212         unsigned long long r17;
 213         unsigned long long r18;
 214         unsigned long long r19;
 215         unsigned long long r20;
 216         unsigned long long r21;
 217         unsigned long long r22;
 218         unsigned long long r23;
 219         unsigned long long r24;
 220         unsigned long long r25;
 221         unsigned long long r26;
 222         unsigned long long r27;
 223         unsigned long long r28;
 224         unsigned long long r29;
 225         unsigned long long r30;
 226         unsigned long long r31;
 227
 228         unsigned int cr;                /* Condition register */
 229         unsigned long long xer;         /* User's integer exception register */
 230         unsigned long long lr;          /* Link register */
 231         unsigned long long ctr;         /* Count register */
 232
 233         unsigned int vrsave;            /* Vector Save Register */
 234 };
 235 #endif /* __DARWIN_UNIX03 */
 236
 237 #pragma pack()
 238
 239 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
 240
 241 /* This structure should be double-word aligned for performance */
 242
 243 #if __DARWIN_UNIX03
 244 #define _STRUCT_PPC_FLOAT_STATE struct __darwin_ppc_float_state
 245 _STRUCT_PPC_FLOAT_STATE
 246 {
 247         double  __fpregs[32];
 248
 249         unsigned int __fpscr_pad; /* fpscr is 64 bits, 32 bits of rubbish */
 250         unsigned int __fpscr;   /* floating point status register */
 251 };
 252 #else /* !__DARWIN_UNIX03 */
 253 #define _STRUCT_PPC_FLOAT_STATE struct ppc_float_state
 254 _STRUCT_PPC_FLOAT_STATE
 255 {
 256         double  fpregs[32];
 257
 258         unsigned int fpscr_pad; /* fpscr is 64 bits, 32 bits of rubbish */
 259         unsigned int fpscr;     /* floating point status register */
 260 };
 261 #endif /* __DARWIN_UNIX03 */
 262
 263 #pragma pack(4)         /* Make sure the structure stays as we defined it */
 264
 265 #if __DARWIN_UNIX03
 266 #define _STRUCT_PPC_VECTOR_STATE        struct __darwin_ppc_vector_state
 267 _STRUCT_PPC_VECTOR_STATE
 268 {
 269 #if defined(__LP64__)
 270         unsigned int    __save_vr[32][4];
 271         unsigned int    __save_vscr[4];
 272 #else
 273         unsigned long   __save_vr[32][4];
 274         unsigned long   __save_vscr[4];
 275 #endif
 276         unsigned int    __save_pad5[4];
 277         unsigned int    __save_vrvalid;                 /* VRs that have been saved */
 278         unsigned int    __save_pad6[7];
 279 };
 280 #else /* !__DARWIN_UNIX03 */
 281 #define _STRUCT_PPC_VECTOR_STATE        struct ppc_vector_state
 282 _STRUCT_PPC_VECTOR_STATE
 283 {
 284 #if defined(__LP64__)
 285         unsigned int    save_vr[32][4];
 286         unsigned int    save_vscr[4];
 287 #else
 288         unsigned long   save_vr[32][4];
 289         unsigned long   save_vscr[4];
 290 #endif
 291         unsigned int    save_pad5[4];
 292         unsigned int    save_vrvalid;                   /* VRs that have been saved */
 293         unsigned int    save_pad6[7];
 294 };
 295 #endif /* __DARWIN_UNIX03 */
 296
 297 #pragma pack()
 298
 299 /*
 300  * ppc_exception_state
 301  *
 302  * This structure corresponds to some additional state of the user
 303  * registers as saved in the PCB upon kernel entry. They are only
 304  * available if an exception is passed out of the kernel, and even
 305  * then not all are guaranteed to be updated.
 306  *
 307  * Some padding is included in this structure which allows space for
 308  * servers to store temporary values if need be, to maintain binary
 309  * compatiblity.
 310  */
 311
 312 /* Exception state for 32-bit thread (on 32-bit processor) */
 313 /* Still available on 64-bit processors, but may fall short */
 314 /* of covering the full potential state (hi half available). */
 315
 316 #pragma pack(4) /* Make sure the structure stays as we defined it */
 317
 318 #if __DARWIN_UNIX03
 319 #define _STRUCT_PPC_EXCEPTION_STATE     struct __darwin_ppc_exception_state
 320 _STRUCT_PPC_EXCEPTION_STATE
 321 {
 322 #if defined(__LP64__)
 323         unsigned int __dar;             /* Fault registers for coredump */
 324         unsigned int __dsisr;
 325         unsigned int __exception;       /* number of powerpc exception taken */
 326         unsigned int __pad0;            /* align to 16 bytes */
 327         unsigned int __pad1[4];         /* space in PCB "just in case" */
 328 #else
 329         unsigned long __dar;            /* Fault registers for coredump */
 330         unsigned long __dsisr;
 331         unsigned long __exception;      /* number of powerpc exception taken */
 332         unsigned long __pad0;           /* align to 16 bytes */
 333         unsigned long __pad1[4];        /* space in PCB "just in case" */
 334 #endif
 335 };
 336 #else /* !__DARWIN_UNIX03 */
 337 #define _STRUCT_PPC_EXCEPTION_STATE     struct ppc_exception_state
 338 _STRUCT_PPC_EXCEPTION_STATE
 339 {
 340 #if defined(__LP64__)
 341         unsigned int dar;               /* Fault registers for coredump */
 342         unsigned int dsisr;
 343         unsigned int exception;         /* number of powerpc exception taken */
 344         unsigned int pad0;              /* align to 16 bytes */
 345         unsigned int pad1[4];           /* space in PCB "just in case" */
 346 #else
 347         unsigned long dar;              /* Fault registers for coredump */
 348         unsigned long dsisr;
 349         unsigned long exception;        /* number of powerpc exception taken */
 350         unsigned long pad0;             /* align to 16 bytes */
 351         unsigned long pad1[4];          /* space in PCB "just in case" */
 352 #endif
 353 };
 354 #endif /* __DARWIN_UNIX03 */
 355
 356 #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
 357 #if __DARWIN_UNIX03
 358 #define _STRUCT_PPC_EXCEPTION_STATE64   struct __darwin_ppc_exception_state64
 359 _STRUCT_PPC_EXCEPTION_STATE64
 360 {
 361         unsigned long long __dar;       /* Fault registers for coredump */
 362 #if defined(__LP64__)
 363         unsigned int  __dsisr;
 364         unsigned int  __exception;      /* number of powerpc exception taken */
 365         unsigned int  __pad1[4];        /* space in PCB "just in case" */
 366 #else
 367         unsigned long __dsisr;
 368         unsigned long __exception;      /* number of powerpc exception taken */
 369         unsigned long __pad1[4];        /* space in PCB "just in case" */
 370 #endif
 371 };
 372 #else /* !__DARWIN_UNIX03 */
 373 #define _STRUCT_PPC_EXCEPTION_STATE64   struct ppc_exception_state64
 374 _STRUCT_PPC_EXCEPTION_STATE64
 375 {
 376         unsigned long long dar;         /* Fault registers for coredump */
 377 #if defined(__LP64__)
 378         unsigned int  dsisr;
 379         unsigned int  exception;        /* number of powerpc exception taken */
 380         unsigned int  pad1[4];          /* space in PCB "just in case" */
 381 #else
 382         unsigned long dsisr;
 383         unsigned long exception;        /* number of powerpc exception taken */
 384         unsigned long pad1[4];          /* space in PCB "just in case" */
 385 #endif
 386 };
 387 #endif /* __DARWIN_UNIX03 */
 388 #endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
 389
 390 #pragma pack()
 391
 392 #endif /* _MACH_PPC__STRUCTS_H_ */