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1 | /* |
1 | /* |
2 | * Copyright (c) 2006 Ondrej Palkovsky |
2 | * Copyright (c) 2007 Michal Kebrt |
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: |
Line 27... | Line 27... | ||
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup libcarm32 |
29 | /** @addtogroup libcarm32 |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** @file |
32 | /** @file |
33 | * @ingroup libcarm32 |
33 | * @brief psthread related declarations. |
34 | */ |
34 | */ |
35 | 35 | ||
36 | #ifndef LIBC_arm32_PSTHREAD_H_ |
36 | #ifndef LIBC_arm32_PSTHREAD_H_ |
37 | #define LIBC_arm32_PSTHREAD_H_ |
37 | #define LIBC_arm32_PSTHREAD_H_ |
38 | 38 | ||
39 | #include <types.h> |
39 | #include <types.h> |
40 | #include <align.h> |
40 | #include <align.h> |
41 | #include "thread.h" |
41 | #include "thread.h" |
42 | 42 | ||
- | 43 | /** Size of a stack item */ |
|
43 | #define STACK_ITEM_SIZE 4 |
44 | #define STACK_ITEM_SIZE 4 |
44 | 45 | ||
45 | /** see <a href="http://www.arm.com/support/faqdev/14269.html">ABI</a> for details */ |
46 | /** Stack alignment - see <a href="http://www.arm.com/support/faqdev/14269.html">ABI</a> for details */ |
46 | #define STACK_ALIGNMENT 8 |
47 | #define STACK_ALIGNMENT 8 |
47 | 48 | ||
48 | #define SP_DELTA (0 + ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT)) |
49 | #define SP_DELTA (0 + ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT)) |
49 | 50 | ||
- | 51 | ||
- | 52 | /** Sets data to the context. |
|
- | 53 | * |
|
- | 54 | * @param c Context (#context_t). |
|
- | 55 | * @param _pc Program counter. |
|
- | 56 | * @param stack Stack address. |
|
- | 57 | * @param size Stack size. |
|
- | 58 | * @param ptls Pointer to the TCB. |
|
- | 59 | */ |
|
50 | #define context_set(c, _pc, stack, size, ptls) \ |
60 | #define context_set(c, _pc, stack, size, ptls) \ |
51 | (c)->pc = (sysarg_t) (_pc); \ |
61 | (c)->pc = (sysarg_t) (_pc); \ |
52 | (c)->sp = ((sysarg_t) (stack)) + (size) - SP_DELTA; \ |
62 | (c)->sp = ((sysarg_t) (stack)) + (size) - SP_DELTA; \ |
53 | (c)->tls = ((sysarg_t)(ptls)) + sizeof(tcb_t) + ARM_TP_OFFSET; |
63 | (c)->tls = ((sysarg_t)(ptls)) + sizeof(tcb_t) + ARM_TP_OFFSET; |
54 | 64 | ||
55 | 65 | ||
- | 66 | /** Thread context. |
|
- | 67 | * |
|
- | 68 | * Only registers preserved accross function calls are included. r9 is used |
|
- | 69 | * to store a TLS address. -ffixed-r9 gcc forces gcc not to use this |
|
- | 70 | * register. -mtp=soft forces gcc to use #__aeabi_read_tp to obtain |
|
- | 71 | * TLS address. |
|
- | 72 | */ |
|
56 | typedef struct { |
73 | typedef struct { |
57 | uint32_t sp; |
74 | uint32_t sp; |
58 | uint32_t pc; |
75 | uint32_t pc; |
59 | uint32_t r4; |
76 | uint32_t r4; |
60 | uint32_t r5; |
77 | uint32_t r5; |