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| 1 | /* |
1 | /* |
| 2 | * Copyright (C) 2005 Jakub Jermar |
2 | * Copyright (C) 2005 Jakub Jermar |
| 3 | * All rights reserved. |
3 | * All rights reserved. |
| 4 | * |
4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
7 | * are met: |
| 8 | * |
8 | * |
| 9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
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 |
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. |
15 | * derived from this software without specific prior written permission. |
| 16 | * |
16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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 |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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 |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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 |
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. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
27 | */ |
| 28 | 28 | ||
| 29 | #ifndef __sparc64_CONTEXT_H__ |
29 | #ifndef __sparc64_CONTEXT_H__ |
| 30 | #define __sparc64_CONTEXT_H__ |
30 | #define __sparc64_CONTEXT_H__ |
| 31 | 31 | ||
| 32 | #ifndef __sparc64_STACK_H__ |
32 | #ifndef __sparc64_STACK_H__ |
| 33 | #include <arch/stack.h> |
33 | #include <arch/stack.h> |
| 34 | #endif |
34 | #endif |
| 35 | 35 | ||
| 36 | #ifndef __sparc64_TYPES_H__ |
36 | #ifndef __sparc64_TYPES_H__ |
| 37 | # include <arch/types.h> |
37 | # include <arch/types.h> |
| 38 | #endif |
38 | #endif |
| 39 | 39 | ||
| 40 | #ifndef __ALIGN_H__ |
40 | #ifndef __ALIGN_H__ |
| 41 | # include <align.h> |
41 | # include <align.h> |
| 42 | #endif |
42 | #endif |
| 43 | 43 | ||
| 44 | #define SP_DELTA STACK_WINDOW_SAVE_AREA_SIZE |
44 | #define SP_DELTA STACK_WINDOW_SAVE_AREA_SIZE |
| 45 | 45 | ||
| 46 | #ifdef context_set |
46 | #ifdef context_set |
| 47 | #undef context_set |
47 | #undef context_set |
| 48 | #endif |
48 | #endif |
| 49 | 49 | ||
| 50 | #define context_set(c, _pc, stack, size) \ |
50 | #define context_set(c, _pc, stack, size) \ |
| 51 | (c)->pc = ((__address) _pc) - 8; \ |
51 | (c)->pc = ((__address) _pc) - 8; \ |
| 52 | (c)->sp = ((__address) stack) + ALIGN((size), STACK_ALIGNMENT) - (STACK_BIAS + SP_DELTA) |
52 | (c)->sp = ((__address) stack) + ALIGN((size), STACK_ALIGNMENT) - (STACK_BIAS + SP_DELTA); \ |
| - | 53 | (c)->fp = -STACK_BIAS |
|
| - | 54 | ||
| 53 | 55 | ||
| 54 | /* |
56 | /* |
| 55 | * Only save registers that must be preserved across |
57 | * Only save registers that must be preserved across |
| 56 | * function calls and that are not saved in caller's |
58 | * function calls and that are not saved in caller's |
| 57 | * register window. |
59 | * register window. |
| 58 | */ |
60 | */ |
| 59 | struct context { |
61 | struct context { |
| 60 | __u64 o1; |
62 | __u64 o1; |
| 61 | __u64 o2; |
63 | __u64 o2; |
| 62 | __u64 o3; |
64 | __u64 o3; |
| 63 | __u64 o4; |
65 | __u64 o4; |
| 64 | __u64 o5; |
66 | __u64 o5; |
| 65 | __address sp; /* %o6 */ |
67 | __address sp; /* %o6 */ |
| 66 | __address pc; /* %o7 */ |
68 | __address pc; /* %o7 */ |
| - | 69 | __address fp; |
|
| 67 | ipl_t ipl; |
70 | ipl_t ipl; |
| 68 | }; |
71 | }; |
| 69 | 72 | ||
| 70 | #endif |
73 | #endif |
| 71 | 74 | ||