| 27,15 → 27,7 |
|---|
| # |
| |
| /** |
| * This file contains two trap tables. |
| * First, trap_table, is the one wich contains handlers implemented by |
| * kernel. During initialization, these handlers are copied out to |
| * the second trap table, trap_table_save, and the first table is |
| * overwritten with copy of OFW's own trap table. The copy is then patched |
| * from the trap_table_save. |
| * |
| * This arrangement is beneficial because kernel handlers stay on their |
| * link-time addresses which is good for debugging. |
| * This file contains kernel trap table. |
| */ |
| |
| .register %g2, #scratch |
| 68,6 → 60,12 |
|---|
| instruction_access_exception: |
| SIMPLE_HANDLER do_instruction_access_exc |
| |
| /* TT = 0x10, TL = 0, illegal_instruction */ |
| .org trap_table + TT_ILLEGAL_INSTRUCTION*ENTRY_SIZE |
| .global illegal_instruction |
| illegal_instruction: |
| SIMPLE_HANDLER do_illegal_instruction |
| |
| /* TT = 0x24, TL = 0, clean_window handler */ |
| .org trap_table + TT_CLEAN_WINDOW*ENTRY_SIZE |
| .global clean_window_handler |
| 216,6 → 214,12 |
|---|
| instruction_access_exception_high: |
| SIMPLE_HANDLER do_instruction_access_exc |
| |
| /* TT = 0x10, TL > 0, illegal_instruction */ |
| .org trap_table + (TT_ILLEGAL_INSTRUCTION+512)*ENTRY_SIZE |
| .global illegal_instruction_high |
| illegal_instruction_high: |
| SIMPLE_HANDLER do_illegal_instruction |
| |
| /* TT = 0x24, TL > 0, clean_window handler */ |
| .org trap_table + (TT_CLEAN_WINDOW+512)*ENTRY_SIZE |
| .global clean_window_handler_high |
| 259,16 → 263,6 |
|---|
| FILL_NORMAL_HANDLER |
| |
| |
| |
| /* |
| * Save trap table. |
| */ |
| .align TABLE_SIZE |
| .global trap_table_save |
| trap_table_save: |
| .space TABLE_SIZE, 0 |
| |
| |
| /* Preemptible trap handler. |
| * |
| * This trap handler makes arrangements to |