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