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[libcpu][k210]add description of exception

This commit is contained in:
ZYH 2019-03-20 12:01:44 +08:00
parent c9d88a8e51
commit 3dd72f956b
1 changed files with 44 additions and 5 deletions
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49
libcpu/risc-v/k210/interrupt.c
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@ -230,10 +230,6 @@ uintptr_t handle_irq_m_ext(uintptr_t cause, uintptr_t epc)
/* Restore primitive IRQ threshold */ /* Restore primitive IRQ threshold */
plic->targets.target[core_id].priority_threshold = int_threshold; plic->targets.target[core_id].priority_threshold = int_threshold;
} }
else
{
rt_kprintf("unhandled trap!\n");
}
return epc; return epc;
} }
@ -270,8 +266,51 @@ uintptr_t handle_trap(uintptr_t mcause, uintptr_t epc)
rt_hw_interrupt_disable(); rt_hw_interrupt_disable();
tid = rt_thread_self(); 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("\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); rt_kprintf("current thread: %.*s\n", RT_NAME_MAX, tid->name);
#ifdef RT_USING_FINSH #ifdef RT_USING_FINSH
list_thread(); list_thread();