sys/arch/sparc64/include/mcontext.h

   1 /*      $NetBSD: mcontext.h,v 1.7 2006/03/14 22:03:39 cube Exp $        */
   2
   3 #ifndef _SPARC64_MCONTEXT_H_
   4 #define _SPARC64_MCONTEXT_H_
   5
   6 #include <sparc/mcontext.h>
   7
   8 #define _NGREG32        19      /* %psr, pc, npc, %g1-7, %o0-7 */
   9 typedef int     __greg32_t;
  10 typedef __greg32_t      __gregset32_t[_NGREG32];
  11
  12 typedef unsigned int    netbsd32___greg32p_t;
  13 typedef unsigned int    netbsd32___fqp_t;
  14 typedef unsigned int    netbsd32___gwindows32p_t;
  15
  16 #define _REG32_PSR      0
  17 #define _REG32_PC       1
  18 #define _REG32_nPC      2
  19 #define _REG32_Y        3
  20 #define _REG32_G1       4
  21 #define _REG32_G2       5
  22 #define _REG32_G3       6
  23 #define _REG32_G4       7
  24 #define _REG32_G5       8
  25 #define _REG32_G6       9
  26 #define _REG32_G7       10
  27 #define _REG32_O0       11
  28 #define _REG32_O1       12
  29 #define _REG32_O2       13
  30 #define _REG32_O3       14
  31 #define _REG32_O4       15
  32 #define _REG32_O5       16
  33 #define _REG32_O6       17
  34 #define _REG32_O7       18
  35
  36 /* Layout of a register window. */
  37 typedef struct {
  38         __greg32_t      __rw_local[8];  /* %l0-7 */
  39         __greg32_t      __rw_in[8];     /* %i0-7 */
  40 } __rwindow32_t;
  41
  42 /* Description of available register windows. */
  43 typedef struct {
  44         int             __wbcnt;
  45         netbsd32___greg32p_t    __spbuf[_SPARC_MAXREGWINDOW];
  46         __rwindow32_t   __wbuf[_SPARC_MAXREGWINDOW];
  47 } __gwindows32_t;
  48
  49 /* FPU state description */
  50 typedef struct {
  51         union {
  52                 unsigned int    __fpu_regs[32];
  53                 double          __fpu_dregs[16];
  54         } __fpu_fr;                             /* FPR contents */
  55         netbsd32___fqp_t        __fpu_q;        /* pointer to FPU insn queue */
  56         unsigned int    __fpu_fsr;              /* %fsr */
  57         unsigned char   __fpu_qcnt;             /* # entries in __fpu_q */
  58         unsigned char   __fpu_q_entrysize;      /* size of a __fpu_q entry */
  59         unsigned char   __fpu_en;               /* this context valid? */
  60 } __fpregset32_t;
  61
  62 /* `Extra Register State'(?) */
  63 typedef struct {
  64         unsigned int    __xrs_id;       /* See below */
  65         unsigned int    __xrs_ptr;      /* points into filler area */
  66 } __xrs32_t;
  67
  68 typedef struct {
  69         __gregset32_t   __gregs;        /* GPR state */
  70         netbsd32___gwindows32p_t __gwins;/* may point to register windows */
  71         __fpregset32_t  __fpregs;       /* FPU state, if any */
  72         __xrs32_t       __xrs;          /* may indicate extra reg state */
  73 } mcontext32_t;
  74
  75 #define _UC_SETSTACK    0x00010000
  76 #define _UC_CLRSTACK    0x00020000
  77
  78 #endif /* _SPARC64_MCONTEXT_H_ */