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1 | jermar | 1 | /* |
2 | * Copyright (C) 2001-2004 Jakub Jermar |
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3 | * All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
29 | #ifndef __mips_CONTEXT_H__ |
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30 | #define __mips_CONTEXT_H__ |
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31 | |||
180 | jermar | 32 | #define STACK_ITEM_SIZE 4 |
45 | vana | 33 | |
306 | palkovsky | 34 | /* These are offsets into the register dump saved |
35 | * on exception entry |
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36 | */ |
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37 | #define EOFFSET_AT 0 |
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38 | #define EOFFSET_V0 4 |
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39 | #define EOFFSET_V1 8 |
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40 | #define EOFFSET_A0 12 |
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41 | #define EOFFSET_A1 16 |
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42 | #define EOFFSET_A2 20 |
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43 | #define EOFFSET_A3 24 |
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44 | #define EOFFSET_A4 28 |
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45 | #define EOFFSET_T1 32 |
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46 | #define EOFFSET_T2 36 |
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47 | #define EOFFSET_T3 40 |
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48 | #define EOFFSET_T4 44 |
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49 | #define EOFFSET_T5 48 |
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50 | #define EOFFSET_T6 52 |
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51 | #define EOFFSET_T7 56 |
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52 | #define EOFFSET_T8 60 |
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53 | #define EOFFSET_T9 64 |
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54 | #define EOFFSET_S0 68 |
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55 | #define EOFFSET_S1 72 |
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56 | #define EOFFSET_S2 76 |
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57 | #define EOFFSET_S3 80 |
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58 | #define EOFFSET_S4 84 |
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59 | #define EOFFSET_S5 88 |
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60 | #define EOFFSET_S6 92 |
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61 | #define EOFFSET_S7 96 |
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62 | #define EOFFSET_S8 100 |
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63 | #define EOFFSET_GP 104 |
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64 | #define EOFFSET_RA 108 |
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65 | #define EOFFSET_LO 112 |
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66 | #define EOFFSET_HI 116 |
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67 | |||
68 | #define REGISTER_SPACE 120 |
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69 | |||
180 | jermar | 70 | /* |
71 | * Put one item onto the stack to support get_stack_base(). |
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72 | */ |
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73 | #define SP_DELTA (0+STACK_ITEM_SIZE) |
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45 | vana | 74 | |
180 | jermar | 75 | |
306 | palkovsky | 76 | #ifndef __ASM__ |
77 | |||
78 | #ifndef __mips_TYPES_H_ |
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79 | # include <arch/types.h> |
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80 | #endif |
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81 | |||
82 | /* |
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83 | * Only save registers that must be preserved across |
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84 | * function calls. |
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85 | */ |
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1 | jermar | 86 | struct context { |
125 | jermar | 87 | __u32 sp; |
88 | __u32 pc; |
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306 | palkovsky | 89 | |
90 | __u32 s0; |
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91 | __u32 s1; |
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92 | __u32 s2; |
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93 | __u32 s3; |
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94 | __u32 s4; |
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95 | __u32 s5; |
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96 | __u32 s6; |
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97 | __u32 s7; |
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98 | __u32 s8; |
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99 | __u32 gp; |
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100 | |||
125 | jermar | 101 | __u32 pri; |
1 | jermar | 102 | }; |
103 | |||
306 | palkovsky | 104 | #endif /* __ASM__ */ |
105 | |||
1 | jermar | 106 | #endif |