include/asm-mips/prctl.h

   1 /*
   2  * IRIX prctl interface
   3  *
   4  * The IRIX kernel maps a page at PRDA_ADDRESS with the
   5  * contents of prda and fills it the bits on prda_sys.
   6  */
   7
   8 #ifndef __PRCTL_H__
   9 #define __PRCTL_H__
  10
  11 #define PRDA_ADDRESS 0x200000L
  12 #define PRDA ((struct prda *) PRDA_ADDRESS)
  13
  14 struct prda_sys {
  15         pid_t t_pid;
  16         u32   t_hint;
  17         u32   t_dlactseq;
  18         u32   t_fpflags;
  19         u32   t_prid;           /* processor type, $prid CP0 register */
  20         u32   t_dlendseq;
  21         u64   t_unused1[5];
  22         pid_t t_rpid;
  23         s32   t_resched;
  24         u32   t_unused[8];
  25         u32   t_cpu;            /* current/last cpu */
  26
  27         /* FIXME: The signal information, not supported by Linux now */
  28         u32   t_flags;          /* if true, then the sigprocmask is in userspace */
  29         u32   t_sigprocmask [1]; /* the sigprocmask */
  30 };
  31
  32 struct prda {
  33         char fill [0xe00];
  34         struct prda_sys prda_sys;
  35 };
  36
  37 #define t_sys           prda_sys
  38
  39 ptrdiff_t prctl(int op, int v1, int v2);
  40
  41 #endif