| 36,50 → 36,51 |
|---|
| |
| #include <arch/types.h> |
| |
| /** |
| * Decribes structure of fault status register in coprocessor 15 |
| |
| /** Decribes CP15 "fault status register" (FSR). |
| */ |
| typedef struct { |
| unsigned status : 3; |
| unsigned domain : 4; |
| unsigned zero : 1; |
| unsigned should_be_zero : 24; |
| unsigned status : 3; |
| unsigned domain : 4; |
| unsigned zero : 1; |
| unsigned should_be_zero : 24; |
| } __attribute__ ((packed)) fault_status_t; |
| |
| /** |
| * Help union used for overcasting integer value into fault_status_t type |
| |
| /** Help union used for casting integer value into #fault_status_t. |
| */ |
| typedef union { |
| fault_status_t fsr; |
| uint32_t dummy; |
| fault_status_t fs; |
| uint32_t dummy; |
| } fault_status_union_t; |
| |
| /** |
| * Very simplyfied description of instruction code structure intended for |
| * recognising memmory access of instruction ( reads or writes into memmory) |
| * more details: see ARM architecture preference |
| * chapter:3.1 Instruction set encoding |
| |
| /** Simplified description of instruction code. |
| * |
| * \note Used for recognizing memory access instructions. |
| * \see ARM architecture reference (chapter 3.1) |
| */ |
| typedef struct { |
| unsigned dummy1 : 4; |
| unsigned bit4 : 1; |
| unsigned bits567 : 3; |
| unsigned dummy : 12; |
| unsigned access : 1; |
| unsigned opcode : 4; |
| unsigned instr_type : 3; |
| unsigned condition : 4; |
| unsigned dummy1 : 4; |
| unsigned bit4 : 1; |
| unsigned bits567 : 3; |
| unsigned dummy : 12; |
| unsigned access : 1; |
| unsigned opcode : 4; |
| unsigned type : 3; |
| unsigned condition : 4; |
| } __attribute__ ((packed)) instruction_t; |
| |
| /** |
| * Help union used for overcasting ip register (uint_32_t) value into |
| * instruction_t pointer |
| |
| /** Help union used for casting pc register (uint_32_t) value into |
| * #instruction_t pointer. |
| */ |
| typedef union { |
| instruction_t* instr; |
| uint32_t ip; |
| instruction_t* instr; |
| uint32_t pc; |
| } instruction_union_t; |
| |
| |
| extern void prefetch_abort(int n, istate_t *istate); |
| extern void data_abort(int n, istate_t *istate); |
| |