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 #ifdef CONFIG_SPARC64
  49 typedef struct {
  50         unsigned   int si_float_regs [64];
  51         unsigned   long si_fsr;
  52         unsigned   long si_gsr;
  53         unsigned   long si_fprs;
  54 } __siginfo_fpu_t;
  55
  56 /* This is what SunOS doesn't, so we have to write this alone
  57    and do it properly. */
  58 struct sigcontext {
  59         /* The size of this array has to match SI_MAX_SIZE from siginfo.h */
  60         char                    sigc_info[128];
  61         struct {
  62                 unsigned long   u_regs[16]; /* globals and ins */
  63                 unsigned long   tstate;
  64                 unsigned long   tpc;
  65                 unsigned long   tnpc;
  66                 unsigned int    y;
  67                 unsigned int    fprs;
  68         }                       sigc_regs;
  69         __siginfo_fpu_t *       sigc_fpu_save;
  70         struct {
  71                 void    *       ss_sp;
  72                 int             ss_flags;
  73                 unsigned long   ss_size;
  74         }                       sigc_stack;
  75         unsigned long           sigc_mask;
  76 };
  77
  78 #else
  79
  80 typedef struct {
  81         unsigned long si_float_regs [32];
  82         unsigned long si_fsr;
  83         unsigned long si_fpqdepth;
  84         struct {
  85                 unsigned long *insn_addr;
  86                 unsigned long insn;
  87         } si_fpqueue [16];
  88 } __siginfo_fpu_t;
  89 #endif /* (CONFIG_SPARC64) */
  90
  91
  92 #endif /* !(__ASSEMBLY__) */
  93
  94 #endif /* (__KERNEL__) */
  95
  96 #endif /* !(__SPARC_SIGCONTEXT_H) */