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 */
26struct 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 */
44