source: mainline/arch/ia64/include/context.h@ ba1b7393

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since ba1b7393 was ba1b7393, checked in by Jakub Jermar <jakub@…>, 20 years ago

Reduce IA-64 context_t according to IA-64 ABI.

Make IA-64 port compile again.

  • Property mode set to 100644
File size: 2.5 KB
Line 
1/*
2 * Copyright (C) 2005 Jakub Jermar
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef __ia64_CONTEXT_H__
30#define __ia64_CONTEXT_H__
31
32#include <arch/types.h>
33
34#define STACK_ITEM_SIZE 16
35
36/*
37 * context_save() and context_restore() are both leaf procedures.
38 * No need to allocate scratch area.
39 *
40 * One item is put onto the stack to support get_stack_base().
41 */
42#define SP_DELTA (0+STACK_ITEM_SIZE)
43
44#ifdef context_set
45#undef context_set
46#endif
47
48#define context_set(c, _pc, stack, size) \
49 (c)->pc = (__address) _pc; \
50 (c)->bsp = ((__address) stack) + (sizeof(the_t)); \
51 (c)->sp = ((__address) stack) + (size) - SP_DELTA;
52
53struct context {
54
55 /*
56 * Application registers
57 */
58 __u64 ar_pfs;
59 __u64 ar_unat_caller;
60 __u64 ar_unat_callee;
61 __u64 ar_rsc;
62 __u64 bsp; /* ar_bsp */
63 __u64 ar_rnat;
64 __u64 ar_lc;
65
66 /*
67 * General registers
68 */
69 __u64 r1;
70 __u64 r4;
71 __u64 r5;
72 __u64 r6;
73 __u64 r7;
74 __u64 sp; /* r12 */
75 __u64 r13;
76
77 /*
78 * Branch registers
79 */
80 __u64 pc; /* b0 */
81 __u64 b1;
82 __u64 b2;
83 __u64 b3;
84 __u64 b4;
85 __u64 b5;
86
87 /*
88 * Predicate registers
89 */
90 __u64 pr;
91
92 pri_t pri;
93} __attribute__ ((packed));
94
95#endif
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