include/asm-sparc/svr4.h

   1 /* Solaris/SPARC constants and definitions --
   2  * (C) 1996 Miguel de Icaza
   3  *
   4  * This file is not meant to be included by user level applications
   5  * but the solaris syscall emulator
   6  */
   7
   8 #ifndef _SPARC_SVR4_H
   9 #define _SPARC_SVR4_H
  10
  11 /* Signals as used by svr4 */
  12 typedef struct {                /* signal set type */
  13         ulong sigbits[4];
  14 } svr4_sigset_t;
  15
  16 /* Values for siginfo.code */
  17 #define SVR4_SINOINFO 32767
  18 /* Siginfo, sucker expects bunch of information on those parameters */
  19 typedef union {
  20         char total_size [128];
  21         struct {
  22                 int signo;
  23                 int code;
  24                 int error;
  25                 union {
  26                 } data;
  27         } siginfo;
  28 } svr4_siginfo_t;
  29
  30 /* Context definition */
  31
  32 /* Location of the user stored registers into a greg_t */
  33 enum {
  34         SVR4_PSR, SVR4_PC, SVR4_NPC, SVR4_Y,
  35         SVR4_G1,  SVR4_G2, SVR4_G3,  SVR4_G4,
  36         SVR4_G5,  SVR4_G6, SVR4_G7,  SVR4_O0,
  37         SVR4_O1,  SVR4_O2, SVR4_O3,  SVR4_O4,
  38         SVR4_O5,  SVR4_O6, SVR4_O7
  39 };
  40
  41 /* sizeof (regs) / sizeof (greg_t), defined in the ABI */
  42 #define SVR4_NREGS  19
  43 #define SVR4_MAXWIN 31
  44
  45 typedef struct {
  46         uint rwin_lo[8];
  47         uint rwin_in[8];
  48 } svr4_rwindow_t;
  49
  50 typedef struct {
  51         int            count;
  52         int            *winptr [SVR4_MAXWIN]; /* pointer to the windows */
  53         svr4_rwindow_t win[SVR4_MAXWIN];      /* the windows */
  54 } svr4_gwindows_t;
  55
  56 typedef int svr4_gregset_t[SVR4_NREGS];
  57
  58 typedef struct {
  59         double   fpu_regs[32];
  60         void     *fp_q;
  61         unsigned fp_fsr;
  62         u_char   fp_nqel;
  63         u_char   fp_nqsize;
  64         u_char   inuse;         /* if fpu is in use */
  65 } svr4_fregset_t;
  66
  67 typedef struct {
  68         uint    id;             /* if this holds "xrs" string => ptr is valid */
  69         caddr_t ptr;
  70 } svr4_xrs_t;
  71
  72 /* Machine dependent context */
  73 typedef struct {
  74         svr4_gregset_t   greg;  /* registers 0..19 (see top) */
  75         svr4_gwindows_t  *gwin; /* may point to register windows */
  76         svr4_fregset_t   freg;  /* floating point registers */
  77         svr4_xrs_t       xrs;   /* mhm? */
  78         long             pad[19];
  79 } svr4_mcontext_t;
  80
  81 /* flags for stack_t.flags */
  82 enum svr4_stack_flags {
  83         SVR4_SS_ONSTACK,
  84         SVR4_SS_DISABLE,
  85 };
  86
  87 /* signal stack exection place, unsupported */
  88 typedef struct svr4_stack_t {
  89         char *sp;
  90         int  size;
  91         int  flags;
  92 } svr4_stack_t;
  93
  94 /* Context used by getcontext and setcontext */
  95 typedef struct svr4_ucontext_t {
  96         u_long               flags; /* context flags, indicate what is loaded */
  97         struct svr4_ucontext *link;
  98         svr4_sigset_t        sigmask;
  99         svr4_stack_t         stack;
 100         svr4_mcontext_t      mcontext;
 101         long                 pad[23];
 102 } svr4_ucontext_t;
 103
 104 /* windows hold the windows as they were at signal time,
 105  * ucontext->mcontext holds a pointer to them.
 106  * addresses for uc and si are passed as parameters to svr4 signal
 107  * handler
 108  */
 109
 110 /* This is the signal frame that is passed to the signal handler */
 111 typedef struct {
 112         svr4_gwindows_t gw;     /* windows */
 113         svr4_ucontext_t uc;     /* machine context */
 114         svr4_siginfo_t  si;     /* siginfo */
 115 } svr4_signal_frame_t;
 116
 117 #define SVR4_SF_ALIGNED (((sizeof (svr4_signal_frame_t) + 7) & (~7)))
 118
 119 #endif /* include control */