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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/ski/ski.h> |
29 | #include <arch/ski/ski.h> |
30 | 30 | ||
31 | .section K_TEXT_START |
31 | .section K_TEXT_START |
32 | .global k_text_start |
32 | .global k_text_start |
33 | k_text_start: |
33 | k_text_start: |
34 | 34 | ||
35 | .section K_TEXT_END |
- | |
36 | .global k_text_end |
- | |
37 | k_text_end: |
- | |
38 | - | ||
39 | .section K_DATA_START |
- | |
40 | .global k_data_start |
- | |
41 | k_data_start: |
- | |
42 | - | ||
43 | .section K_DATA_END |
- | |
44 | .global k_data_end |
- | |
45 | k_data_end: |
- | |
46 | - | ||
47 | - | ||
48 | .text |
- | |
49 | - | ||
50 | .global kernel_image_start |
35 | .global kernel_image_start |
51 | 36 | ||
52 | stack0: |
37 | stack0: |
53 | kernel_image_start: |
38 | kernel_image_start: |
54 | # initialize gp (Global Pointer) register |
39 | # initialize register stack |
55 | movl r1=k_text_start; |
40 | alloc r1 = ar.pfs, 0, 0, 0, 0 ;; |
56 | 41 | ||
57 | # set stack pointer to some sane value |
42 | # initialize memory stack to some sane value |
58 | movl r12=stack0 |
43 | movl r12=stack0 |
59 | 44 | ||
- | 45 | # initialize gp (Global Pointer) register |
|
- | 46 | movl r1=k_text_start |
|
- | 47 | ||
60 | # |
48 | # |
61 | # Initialize hardcoded_* variables. |
49 | # Initialize hardcoded_* variables. |
62 | # (IA-64 port doesn't get these values from linker.) |
50 | # (IA-64 port doesn't get these values from linker.) |
63 | # |
51 | # |
64 | movl r8 = k_text_start ;; |
52 | movl r8 = k_text_start ;; |
65 | movl r9 = k_text_end ;; |
53 | movl r9 = k_text_end ;; |
66 | sub r8 = r9, r8 ;; |
54 | sub r8 = r9, r8 ;; |
67 | addl r10 = @gprel(hardcoded_ktext_size), gp;; |
55 | addl r10 = @gprel(hardcoded_ktext_size), gp;; |
68 | st4 [r10] = r8 ;; |
56 | st4 [r10] = r8 ;; |
69 | 57 | ||
70 | movl r8 = k_data_start ;; |
58 | movl r8 = k_data_start ;; |
71 | movl r9 = k_data_end ;; |
59 | movl r9 = k_data_end ;; |
72 | sub r8 = r9, r8 ;; |
60 | sub r8 = r9, r8 ;; |
73 | addl r10 = @gprel(hardcoded_kdata_size), gp;; |
61 | addl r10 = @gprel(hardcoded_kdata_size), gp;; |
74 | st4 [r10] = r8 ;; |
62 | st4 [r10] = r8 ;; |
75 | 63 | ||
76 | addl r10 = @gprel(hardcoded_load_address), gp;; |
64 | addl r10 = @gprel(hardcoded_load_address), gp;; |
77 | st8 [r10] = r1 |
65 | st8 [r10] = r1 |
78 | 66 | ||
79 | # initialize Ski console using SSC (Simulator System Call) |
67 | # initialize Ski console using SSC (Simulator System Call) |
80 | mov r15=SKI_CONSOLE_INIT |
68 | mov r15=SKI_CONSOLE_INIT |
81 | break 0x80000 |
69 | break 0x80000 |
82 | 70 | ||
83 | br.call.sptk.many b0=main_bsp |
71 | br.call.sptk.many b0=main_bsp |
84 | 72 | ||
85 | 0: |
73 | 0: |
86 | br 0b |
74 | br 0b |
87 | 75 | ||
- | 76 | .section K_TEXT_END |
|
- | 77 | .global k_text_end |
|
- | 78 | k_text_end: |
|
- | 79 | ||
- | 80 | .section K_DATA_START |
|
- | 81 | .global k_data_start |
|
- | 82 | k_data_start: |
|
- | 83 | ||
- | 84 | .section K_DATA_END |
|
- | 85 | .global k_data_end |
|
- | 86 | k_data_end: |
|
88 | 87 |