diff options
| author | ZYH <[email protected]> | 2019-03-20 12:01:44 +0800 |
|---|---|---|
| committer | ZYH <[email protected]> | 2019-03-20 12:23:17 +0800 |
| commit | 3dd72f956bfa1f68a4ee69ccc823fb93c607f312 (patch) | |
| tree | 50eb209ab6ba0225a697caca19edea08d8a3d415 /libcpu | |
| parent | c9d88a8e51f4e0bfc367579cdccb82426e7839bf (diff) | |
[libcpu][k210]add description of exception
Diffstat (limited to 'libcpu')
| -rw-r--r-- | libcpu/risc-v/k210/interrupt.c | 49 |
1 files changed, 44 insertions, 5 deletions
diff --git a/libcpu/risc-v/k210/interrupt.c b/libcpu/risc-v/k210/interrupt.c index 3d30e69ed2..f6424ab5ef 100644 --- a/libcpu/risc-v/k210/interrupt.c +++ b/libcpu/risc-v/k210/interrupt.c @@ -230,10 +230,6 @@ uintptr_t handle_irq_m_ext(uintptr_t cause, uintptr_t epc) /* Restore primitive IRQ threshold */ plic->targets.target[core_id].priority_threshold = int_threshold; } - else - { - rt_kprintf("unhandled trap!\n"); - } return epc; } @@ -270,8 +266,51 @@ uintptr_t handle_trap(uintptr_t mcause, uintptr_t epc) rt_hw_interrupt_disable(); tid = rt_thread_self(); + rt_kprintf("\nException:\n"); + switch (cause) + { + case CAUSE_MISALIGNED_FETCH: + rt_kprintf("Instruction address misaligned"); + break; + case CAUSE_FAULT_FETCH: + rt_kprintf("Instruction access fault"); + break; + case CAUSE_ILLEGAL_INSTRUCTION: + rt_kprintf("Illegal instruction"); + break; + case CAUSE_BREAKPOINT: + rt_kprintf("Breakpoint"); + break; + case CAUSE_MISALIGNED_LOAD: + rt_kprintf("Load address misaligned"); + break; + case CAUSE_FAULT_LOAD: + rt_kprintf("Load access fault"); + break; + case CAUSE_MISALIGNED_STORE: + rt_kprintf("Store address misaligned"); + break; + case CAUSE_FAULT_STORE: + rt_kprintf("Store access fault"); + break; + case CAUSE_USER_ECALL: + rt_kprintf("Environment call from U-mode"); + break; + case CAUSE_SUPERVISOR_ECALL: + rt_kprintf("Environment call from S-mode"); + break; + case CAUSE_HYPERVISOR_ECALL: + rt_kprintf("Environment call from H-mode"); + break; + case CAUSE_MACHINE_ECALL: + rt_kprintf("Environment call from M-mode"); + break; + default: + rt_kprintf("Uknown exception : %08lX", cause); + break; + } rt_kprintf("\n"); - rt_kprintf("unhandled trap, epc => 0x%08x, INT[%d]\n", epc, rt_interrupt_get_nest()); + rt_kprintf("exception pc => 0x%08x\n", epc); rt_kprintf("current thread: %.*s\n", RT_NAME_MAX, tid->name); #ifdef RT_USING_FINSH list_thread(); |