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1 | # |
1 | # |
2 | # Copyright (c) 2005 Martin Decky |
2 | # Copyright (c) 2005 Martin Decky |
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 | .section .init, "ax" |
29 | .section .init, "ax" |
30 | 30 | ||
31 | .org 0 |
31 | .org 0 |
32 | 32 | ||
33 | .globl __entry |
33 | .globl __entry |
34 | .globl __entry_driver |
34 | .globl __entry_driver |
35 | 35 | ||
36 | ## User-space task entry point |
36 | ## User-space task entry point |
37 | # |
37 | # |
38 | # |
38 | # |
39 | __entry: |
39 | __entry: |
40 | mov %ss, %ax |
40 | mov %ss, %ax |
41 | mov %ax, %ds |
41 | mov %ax, %ds |
42 | mov %ax, %es |
42 | mov %ax, %es |
43 | mov %ax, %fs |
43 | mov %ax, %fs |
44 | # Do not set %gs, it contains descriptor that can see TLS |
44 | # Do not set %gs, it contains descriptor that can see TLS |
45 | 45 | ||
46 | call __main |
46 | call __main |
47 | call __io_init |
47 | call __io_init |
48 | call main |
48 | call main |
49 | call __exit |
49 | call __exit |
50 | 50 | ||
51 | __entry_driver: |
51 | __entry_driver: |
52 | mov %ss, %ax |
52 | mov %ss, %ax |
53 | mov %ax, %ds |
53 | mov %ax, %ds |
54 | mov %ax, %es |
54 | mov %ax, %es |
55 | mov %ax, %fs |
55 | mov %ax, %fs |
56 | # Do not set %gs, it contains descriptor that can see TLS |
56 | # Do not set %gs, it contains descriptor that can see TLS |
57 | 57 | ||
58 | call __main |
58 | call __main |
59 | call main |
59 | call main |
60 | call __exit |
60 | call __exit |
61 | 61 |