Rev 2304 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed
| Rev 2304 | Rev 2329 | ||
|---|---|---|---|
| Line 37... | Line 37... | ||
| 37 | #define KERN_arm32_EXCEPTION_H_ |
37 | #define KERN_arm32_EXCEPTION_H_ |
| 38 | 38 | ||
| 39 | #include <arch/types.h> |
39 | #include <arch/types.h> |
| 40 | #include <arch/regutils.h> |
40 | #include <arch/regutils.h> |
| 41 | 41 | ||
| - | 42 | ||
| 42 | #define HIGH_EXCEPTION_VECTORS |
43 | #define HIGH_EXCEPTION_VECTORS |
| 43 | 44 | ||
| 44 | #ifdef HIGH_EXCEPTION_VECTORS |
45 | #ifdef HIGH_EXCEPTION_VECTORS |
| 45 | #define EXC_BASE_ADDRESS 0xffff0000 |
46 | #define EXC_BASE_ADDRESS 0xffff0000 |
| 46 | #else |
47 | #else |
| Line 63... | Line 64... | ||
| 63 | #define EXC_PREFETCH_ABORT 3 |
64 | #define EXC_PREFETCH_ABORT 3 |
| 64 | #define EXC_DATA_ABORT 4 |
65 | #define EXC_DATA_ABORT 4 |
| 65 | #define EXC_IRQ 5 |
66 | #define EXC_IRQ 5 |
| 66 | #define EXC_FIQ 6 |
67 | #define EXC_FIQ 6 |
| 67 | 68 | ||
| - | 69 | ||
| - | 70 | /** Structure representing CPU state saved when an exception occurs. */ |
|
| 68 | typedef struct { |
71 | typedef struct { |
| 69 | uint32_t spsr; |
72 | uint32_t spsr; |
| 70 | uint32_t sp; |
73 | uint32_t sp; |
| 71 | uint32_t lr; |
74 | uint32_t lr; |
| 72 | 75 | ||
| Line 92... | Line 95... | ||
| 92 | static inline void istate_set_retaddr(istate_t *istate, uintptr_t retaddr) |
95 | static inline void istate_set_retaddr(istate_t *istate, uintptr_t retaddr) |
| 93 | { |
96 | { |
| 94 | istate->pc = retaddr; |
97 | istate->pc = retaddr; |
| 95 | } |
98 | } |
| 96 | 99 | ||
| - | 100 | ||
| 97 | /** Return true if exception happened while in userspace */ |
101 | /** Return true if exception happened while in userspace. */ |
| 98 | static inline int istate_from_uspace(istate_t *istate) |
102 | static inline int istate_from_uspace(istate_t *istate) |
| 99 | { |
103 | { |
| 100 | return (istate->spsr & STATUS_REG_MODE_MASK) == USER_MODE; |
104 | return (istate->spsr & STATUS_REG_MODE_MASK) == USER_MODE; |
| 101 | } |
105 | } |
| - | 106 | ||
| - | 107 | ||
| 102 | static inline unative_t istate_get_pc(istate_t *istate) |
108 | static inline unative_t istate_get_pc(istate_t *istate) |
| 103 | { |
109 | { |
| 104 | return istate->pc; |
110 | return istate->pc; |
| 105 | } |
111 | } |
| 106 | 112 | ||
| - | 113 | ||
| 107 | extern void setup_exception_stacks(void); |
114 | extern void setup_exception_stacks(void); |
| 108 | extern void install_exception_handlers(void); |
115 | extern void install_exception_handlers(void); |
| 109 | extern void exception_init(void); |
116 | extern void exception_init(void); |
| 110 | extern void print_istate(istate_t *istate); |
117 | extern void print_istate(istate_t *istate); |
| 111 | 118 | ||
| - | 119 | ||
| 112 | #endif |
120 | #endif |
| 113 | 121 | ||
| 114 | /** @} |
122 | /** @} |
| 115 | */ |
123 | */ |