| 63,6 → 63,7 |
|---|
| * |
| * Temporary exception stack is used to save a few registers |
| * before stack switch takes place. |
| * |
| */ |
| inline static void setup_stack_and_save_regs() |
| { |
| 100,6 → 101,7 |
|---|
| "mov r2, lr \n" |
| "stmfd r13!, {r4-r12} \n" |
| "mov r1, r13 \n" |
| |
| /* the following two lines are for debugging */ |
| "mov sp, #0 \n" |
| "mov lr, #0 \n" |
| 113,6 → 115,7 |
|---|
| "mrs r0, spsr \n" |
| "stmfd r1!, {r0} \n" |
| "mov r13, r1 \n" |
| |
| "2:\n" |
| ); |
| } |
| 190,9 → 193,12 |
|---|
| |
| /** Calls exception dispatch routine. */ |
| #define CALL_EXC_DISPATCH(exception) \ |
| asm("mov r0, %0" : : "i" (exception)); \ |
| asm("mov r1, r13"); \ |
| asm("bl exc_dispatch"); |
| asm volatile ( \ |
| "mov r0, %[exc]\n" \ |
| "mov r1, r13\n" \ |
| "bl exc_dispatch\n" \ |
| :: [exc] "i" (exception) \ |
| );\ |
| |
| /** General exception handler. |
| * |
| 333,12 → 339,18 |
|---|
| { |
| uint32_t control_reg; |
| |
| asm volatile("mrc p15, 0, %0, c1, c1" : "=r" (control_reg)); |
| asm volatile ( |
| "mrc p15, 0, %[control_reg], c1, c1" |
| : [control_reg] "=r" (control_reg) |
| ); |
| |
| /* switch on the high vectors bit */ |
| control_reg |= CP15_R1_HIGH_VECTORS_BIT; |
| |
| asm volatile("mcr p15, 0, %0, c1, c1" : : "r" (control_reg)); |
| asm volatile ( |
| "mcr p15, 0, %[control_reg], c1, c1" |
| :: [control_reg] "r" (control_reg) |
| ); |
| } |
| #endif |
| |