arch/sparc/include/asm/sigcontext.h

   1 #ifndef __SPARC_SIGCONTEXT_H
   2 #define __SPARC_SIGCONTEXT_H
   3
   4 #ifdef __KERNEL__
   5 #include <asm/ptrace.h>
   6
   7 #ifndef __ASSEMBLY__
   8
   9 #define __SUNOS_MAXWIN   31
  10
  11 /* This is what SunOS does, so shall I unless we use new 32bit signals or rt signals. */
  12 struct sigcontext32 {
  13         int sigc_onstack;      /* state to restore */
  14         int sigc_mask;         /* sigmask to restore */
  15         int sigc_sp;           /* stack pointer */
  16         int sigc_pc;           /* program counter */
  17         int sigc_npc;          /* next program counter */
  18         int sigc_psr;          /* for condition codes etc */
  19         int sigc_g1;           /* User uses these two registers */
  20         int sigc_o0;           /* within the trampoline code. */
  21
  22         /* Now comes information regarding the users window set
  23          * at the time of the signal.
  24          */
  25         int sigc_oswins;       /* outstanding windows */
  26
  27         /* stack ptrs for each regwin buf */
  28         unsigned sigc_spbuf[__SUNOS_MAXWIN];
  29
  30         /* Windows to restore after signal */
  31         struct reg_window32 sigc_wbuf[__SUNOS_MAXWIN];
  32 };
  33
  34
  35 /* This is what we use for 32bit new non-rt signals. */
  36
  37 typedef struct {
  38         struct {
  39                 unsigned int psr;
  40                 unsigned int pc;
  41                 unsigned int npc;
  42                 unsigned int y;
  43                 unsigned int u_regs[16]; /* globals and ins */
  44         }                       si_regs;
  45         int                     si_mask;
  46 } __siginfo32_t;
  47
  48 #define __SIGC_MAXWIN   7
  49
  50 typedef struct {
  51         unsigned long locals[8];
  52         unsigned long ins[8];
  53 } __siginfo_reg_window;
  54
  55 typedef struct {
  56         int                     wsaved;
  57         __siginfo_reg_window    reg_window[__SIGC_MAXWIN];
  58         unsigned long           rwbuf_stkptrs[__SIGC_MAXWIN];
  59 } __siginfo_rwin_t;
  60
  61 #ifdef CONFIG_SPARC64
  62 typedef struct {
  63         unsigned   int si_float_regs [64];
  64         unsigned   long si_fsr;
  65         unsigned   long si_gsr;
  66         unsigned   long si_fprs;
  67 } __siginfo_fpu_t;
  68
  69 /* This is what SunOS doesn't, so we have to write this alone
  70    and do it properly. */
  71 struct sigcontext {
  72         /* The size of this array has to match SI_MAX_SIZE from siginfo.h */
  73         char                    sigc_info[128];
  74         struct {
  75                 unsigned long   u_regs[16]; /* globals and ins */
  76                 unsigned long   tstate;
  77                 unsigned long   tpc;
  78                 unsigned long   tnpc;
  79                 unsigned int    y;
  80                 unsigned int    fprs;
  81         }                       sigc_regs;
  82         __siginfo_fpu_t *       sigc_fpu_save;
  83         struct {
  84                 void    *       ss_sp;
  85                 int             ss_flags;
  86                 unsigned long   ss_size;
  87         }                       sigc_stack;
  88         unsigned long           sigc_mask;
  89         __siginfo_rwin_t *      sigc_rwin_save;
  90 };
  91
  92 #else
  93
  94 typedef struct {
  95         unsigned long si_float_regs [32];
  96         unsigned long si_fsr;
  97         unsigned long si_fpqdepth;
  98         struct {
  99                 unsigned long *insn_addr;
 100                 unsigned long insn;
 101         } si_fpqueue [16];
 102 } __siginfo_fpu_t;
 103 #endif /* (CONFIG_SPARC64) */
 104
 105
 106 #endif /* !(__ASSEMBLY__) */
 107
 108 #endif /* (__KERNEL__) */
 109
 110 #endif /* !(__SPARC_SIGCONTEXT_H) */