| 48,11 → 48,18 |
|---|
| #define EXC_IRQ_VEC 0x18 |
| #define EXC_FIQ_VEC 0x1c |
| |
| /* Exception numbers */ |
| #define EXC_RESET 0 |
| #define EXC_UNDEF_INSTR 1 |
| #define EXC_SWI 2 |
| #define EXC_PREFETCH_ABORT 3 |
| #define EXC_DATA_ABORT 4 |
| #define EXC_IRQ 5 |
| #define EXC_FIQ 6 |
| |
| |
| |
| typedef struct { |
| |
| uint32_t cpsr; |
| uint32_t retaddr; |
| |
| uint32_t r0; |
| uint32_t r1; |
| uint32_t r2; |
| 68,24 → 75,26 |
|---|
| uint32_t sp; |
| uint32_t lr; |
| |
| uint32_t spsr; |
| } istate_t; |
| |
| static inline void istate_set_retaddr(istate_t *istate, uintptr_t retaddr) |
| { |
| istate->retaddr = retaddr; |
| istate->lr = retaddr; |
| } |
| |
| /** Return true if exception happened while in userspace */ |
| static inline int istate_from_uspace(istate_t *istate) |
| { |
| return !(istate->retaddr & 0x80000000); |
| return !(istate->lr & 0x80000000); |
| return 0; |
| } |
| static inline unative_t istate_get_pc(istate_t *istate) |
| { |
| return istate->retaddr; |
| return istate->lr; |
| } |
| |
| |
| extern void setup_exception_stacks(void); |
| extern void install_exception_handlers(void); |
| extern void exception_init(void); |
| |