arch/tile/include/uapi/asm/sigcontext.h

   1 /*
   2  * Copyright 2010 Tilera Corporation. All Rights Reserved.
   3  *
   4  *   This program is free software; you can redistribute it and/or
   5  *   modify it under the terms of the GNU General Public License
   6  *   as published by the Free Software Foundation, version 2.
   7  *
   8  *   This program is distributed in the hope that it will be useful, but
   9  *   WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
  11  *   NON INFRINGEMENT.  See the GNU General Public License for
  12  *   more details.
  13  */
  14
  15 #ifndef _ASM_TILE_SIGCONTEXT_H
  16 #define _ASM_TILE_SIGCONTEXT_H
  17
  18 /* Don't pollute the namespace since <signal.h> includes this file. */
  19 #define __need_int_reg_t
  20 #include <arch/abi.h>
  21
  22 /*
  23  * struct sigcontext has the same shape as struct pt_regs,
  24  * but is simplified since we know the fault is from userspace.
  25  */
  26 struct sigcontext {
  27         __extension__ union {
  28                 /* General-purpose registers.  */
  29                 __uint_reg_t gregs[56];
  30                 __extension__ struct {
  31                         __uint_reg_t __gregs[53];
  32                         __uint_reg_t tp;        /* Aliases gregs[TREG_TP].  */
  33                         __uint_reg_t sp;        /* Aliases gregs[TREG_SP].  */
  34                         __uint_reg_t lr;        /* Aliases gregs[TREG_LR].  */
  35                 };
  36         };
  37         __uint_reg_t pc;        /* Program counter.  */
  38         __uint_reg_t ics;       /* In Interrupt Critical Section?  */
  39         __uint_reg_t faultnum;  /* Fault number.  */
  40         __uint_reg_t pad[5];
  41 };
  42
  43 #endif /* _ASM_TILE_SIGCONTEXT_H */