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27 | */ |
27 | */ |
28 | 28 | ||
29 | #ifndef __LIBC__ppc32__THREAD_H__ |
29 | #ifndef __LIBC__ppc32__THREAD_H__ |
30 | #define __LIBC__ppc32__THREAD_H__ |
30 | #define __LIBC__ppc32__THREAD_H__ |
31 | 31 | ||
32 | /* I did not find any specification (neither MIPS nor PowerPC), but |
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33 | * as I found it |
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34 | * - it uses Variant II |
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35 | * - TCB is at Address(First TLS Block)+0x7000. |
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36 | * - DTV is at Address(First TLS Block)+0x8000 |
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37 | * - What would happen if the TLS data was larger then 0x7000? |
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38 | * - The linker never accesses DTV directly, has the second definition any |
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39 | * sense? |
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40 | * We will make it this way: |
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41 | * - TCB is at TP-0x7000-sizeof(tcb) |
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42 | * - No assumption about DTV etc., but it will not have a fixed address |
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43 | */ |
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44 | #define PPC_TP_OFFSET 0x7000 |
32 | #define PPC_TP_OFFSET 0x7000 |
45 | 33 | ||
46 | typedef struct { |
34 | typedef struct { |
47 | void *pst_data; |
35 | void *pst_data; |
48 | } tcb_t; |
36 | } tcb_t; |