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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 | #include <arch/context_offset.h> |
29 | #include <arch/context_offset.h> |
30 | #include <arch/stack.h> |
30 | #include <arch/stack.h> |
31 | 31 | ||
32 | .text |
32 | .text |
33 | 33 | ||
34 | .global context_save_arch |
34 | .global context_save_arch |
35 | .global context_restore_arch |
35 | .global context_restore_arch |
36 | 36 | ||
37 | .macro CONTEXT_STORE r |
37 | .macro CONTEXT_STORE r |
38 | stx %i1, [\r + OFFSET_I1] |
38 | stx %o1, [\r + OFFSET_I1] |
39 | stx %i2, [\r + OFFSET_I2] |
39 | stx %o2, [\r + OFFSET_I2] |
40 | stx %i3, [\r + OFFSET_I3] |
40 | stx %o3, [\r + OFFSET_I3] |
41 | stx %i4, [\r + OFFSET_I4] |
41 | stx %o4, [\r + OFFSET_I4] |
42 | stx %i5, [\r + OFFSET_I5] |
42 | stx %o5, [\r + OFFSET_I5] |
43 | stx %fp, [\r + OFFSET_FP] |
- | |
44 | stx %i7, [\r + OFFSET_PC] |
43 | stx %o7, [\r + OFFSET_PC] |
45 | stx %sp, [\r + OFFSET_SP] |
44 | stx %sp, [\r + OFFSET_SP] |
46 | .endm |
45 | .endm |
47 | 46 | ||
48 | .macro CONTEXT_LOAD r |
47 | .macro CONTEXT_LOAD r |
49 | ldx [\r + OFFSET_I1], %i1 |
48 | ldx [\r + OFFSET_I1], %o1 |
50 | ldx [\r + OFFSET_I2], %i2 |
49 | ldx [\r + OFFSET_I2], %o2 |
51 | ldx [\r + OFFSET_I3], %i3 |
50 | ldx [\r + OFFSET_I3], %o3 |
52 | ldx [\r + OFFSET_I4], %i4 |
51 | ldx [\r + OFFSET_I4], %o4 |
53 | ldx [\r + OFFSET_I5], %i5 |
52 | ldx [\r + OFFSET_I5], %o5 |
54 | ldx [\r + OFFSET_FP], %fp |
- | |
55 | ldx [\r + OFFSET_PC], %i7 |
53 | ldx [\r + OFFSET_PC], %o7 |
56 | ldx [\r + OFFSET_SP], %sp |
54 | ldx [\r + OFFSET_SP], %sp |
57 | .endm |
55 | .endm |
58 | 56 | ||
59 | 57 | ||
60 | context_save_arch: |
58 | context_save_arch: |
61 | save %sp, -STACK_WINDOW_SAVE_AREA_SIZE, %sp |
- | |
62 | CONTEXT_STORE %i0 |
59 | CONTEXT_STORE %o0 |
63 | 60 | ||
64 | # context_save returns 1 |
61 | # context_save returns 1 |
65 | mov 1, %i0 |
- | |
66 | ret |
62 | retl |
67 | restore %sp, STACK_WINDOW_SAVE_AREA_SIZE, %sp |
63 | mov 1, %o0 |
68 | 64 | ||
69 | context_restore_arch: |
65 | context_restore_arch: |
70 | save %sp, -STACK_WINDOW_SAVE_AREA_SIZE, %sp |
- | |
71 | CONTEXT_LOAD %i0 |
66 | CONTEXT_LOAD %o0 |
72 | 67 | ||
73 | # context_restore returns 0 |
68 | # context_restore returns 0 |
74 | xor %i0, %i0, %i0 |
- | |
75 | ret |
69 | retl |
76 | restore %sp, STACK_WINDOW_SAVE_AREA_SIZE, %sp |
70 | xor %o0, %o0, %o0 |
77 | 71 |