/* * Copyright (c) 2006-2024, RT-Thread Development Team * * SPDX-License-Identifier: Apache-2.0 * * Change Logs: * Date Author Notes * 2024/01/11 flyingcys The first version */ #include #include struct exception_stack_frame { uint64_t x1; uint64_t x2; uint64_t x3; uint64_t x4; uint64_t x5; uint64_t x6; uint64_t x7; uint64_t x8; uint64_t x9; uint64_t x10; uint64_t x11; uint64_t x12; uint64_t x13; uint64_t x14; uint64_t x15; uint64_t x16; uint64_t x17; uint64_t x18; uint64_t x19; uint64_t x20; uint64_t x21; uint64_t x22; uint64_t x23; uint64_t x24; uint64_t x25; uint64_t x26; uint64_t x27; uint64_t x28; uint64_t x29; uint64_t x30; uint64_t x31; }; static void print_stack_frame(uintptr_t * sp) { struct exception_stack_frame * esf = (struct exception_stack_frame *)(sp+1); rt_kprintf("\n=================================================================\n"); rt_kprintf("x1 (ra : Return address ) ==> 0x%08x%08x\n", esf->x1 >> 32 , esf->x1 & UINT32_MAX); rt_kprintf("x2 (sp : Stack pointer ) ==> 0x%08x%08x\n", esf->x2 >> 32 , esf->x2 & UINT32_MAX); rt_kprintf("x3 (gp : Global pointer ) ==> 0x%08x%08x\n", esf->x3 >> 32 , esf->x3 & UINT32_MAX); rt_kprintf("x4 (tp : Thread pointer ) ==> 0x%08x%08x\n", esf->x4 >> 32 , esf->x4 & UINT32_MAX); rt_kprintf("x5 (t0 : Temporary ) ==> 0x%08x%08x\n", esf->x5 >> 32 , esf->x5 & UINT32_MAX); rt_kprintf("x6 (t1 : Temporary ) ==> 0x%08x%08x\n", esf->x6 >> 32 , esf->x6 & UINT32_MAX); rt_kprintf("x7 (t2 : Temporary ) ==> 0x%08x%08x\n", esf->x7 >> 32 , esf->x7 & UINT32_MAX); rt_kprintf("x8 (s0/fp: Save register,frame pointer ) ==> 0x%08x%08x\n", esf->x8 >> 32 , esf->x8 & UINT32_MAX); rt_kprintf("x9 (s1 : Save register ) ==> 0x%08x%08x\n", esf->x9 >> 32 , esf->x9 & UINT32_MAX); rt_kprintf("x10(a0 : Function argument,return value) ==> 0x%08x%08x\n", esf->x10 >> 32 , esf->x10 & UINT32_MAX); rt_kprintf("x11(a1 : Function argument,return value) ==> 0x%08x%08x\n", esf->x11 >> 32 , esf->x11 & UINT32_MAX); rt_kprintf("x12(a2 : Function argument ) ==> 0x%08x%08x\n", esf->x12 >> 32 , esf->x12 & UINT32_MAX); rt_kprintf("x13(a3 : Function argument ) ==> 0x%08x%08x\n", esf->x13 >> 32 , esf->x13 & UINT32_MAX); rt_kprintf("x14(a4 : Function argument ) ==> 0x%08x%08x\n", esf->x14 >> 32 , esf->x14 & UINT32_MAX); rt_kprintf("x15(a5 : Function argument ) ==> 0x%08x%08x\n", esf->x15 >> 32 , esf->x15 & UINT32_MAX); rt_kprintf("x16(a6 : Function argument ) ==> 0x%08x%08x\n", esf->x16 >> 32 , esf->x16 & UINT32_MAX); rt_kprintf("x17(a7 : Function argument ) ==> 0x%08x%08x\n", esf->x17 >> 32 , esf->x17 & UINT32_MAX); rt_kprintf("x18(s2 : Save register ) ==> 0x%08x%08x\n", esf->x18 >> 32 , esf->x18 & UINT32_MAX); rt_kprintf("x19(s3 : Save register ) ==> 0x%08x%08x\n", esf->x19 >> 32 , esf->x19 & UINT32_MAX); rt_kprintf("x20(s4 : Save register ) ==> 0x%08x%08x\n", esf->x20 >> 32 , esf->x20 & UINT32_MAX); rt_kprintf("x21(s5 : Save register ) ==> 0x%08x%08x\n", esf->x21 >> 32 , esf->x21 & UINT32_MAX); rt_kprintf("x22(s6 : Save register ) ==> 0x%08x%08x\n", esf->x22 >> 32 , esf->x22 & UINT32_MAX); rt_kprintf("x23(s7 : Save register ) ==> 0x%08x%08x\n", esf->x23 >> 32 , esf->x23 & UINT32_MAX); rt_kprintf("x24(s8 : Save register ) ==> 0x%08x%08x\n", esf->x24 >> 32 , esf->x24 & UINT32_MAX); rt_kprintf("x25(s9 : Save register ) ==> 0x%08x%08x\n", esf->x25 >> 32 , esf->x25 & UINT32_MAX); rt_kprintf("x26(s10 : Save register ) ==> 0x%08x%08x\n", esf->x26 >> 32 , esf->x26 & UINT32_MAX); rt_kprintf("x27(s11 : Save register ) ==> 0x%08x%08x\n", esf->x27 >> 32 , esf->x27 & UINT32_MAX); rt_kprintf("x28(t3 : Temporary ) ==> 0x%08x%08x\n", esf->x28 >> 32 , esf->x28 & UINT32_MAX); rt_kprintf("x29(t4 : Temporary ) ==> 0x%08x%08x\n", esf->x29 >> 32 , esf->x29 & UINT32_MAX); rt_kprintf("x30(t5 : Temporary ) ==> 0x%08x%08x\n", esf->x30 >> 32 , esf->x30 & UINT32_MAX); rt_kprintf("x31(t6 : Temporary ) ==> 0x%08x%08x\n", esf->x31 >> 32 , esf->x31 & UINT32_MAX); rt_kprintf("=================================================================\n"); } rt_weak void rt_hw_soft_irq_isr(void) { } rt_weak rt_size_t handle_trap(rt_size_t cause, rt_size_t epc, rt_size_t *sp) { if (cause & (1UL << (__riscv_xlen - 1))) //interrupt { if ((cause & 0x1f) == IRQ_M_SOFT) { rt_hw_soft_irq_isr(); } else if ((cause & 0x1f) == IRQ_M_TIMER) { rt_hw_tick_isr(); } else if ((cause & 0x1f) == IRQ_M_EXT) { rt_hw_irq_isr(); } } else { rt_thread_t tid; #if defined(RT_USING_FINSH) && defined(MSH_USING_BUILT_IN_COMMANDS) extern long list_thread(); #endif 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"); print_stack_frame(sp); rt_kprintf("exception pc => 0x%08x\n", epc); rt_kprintf("current thread: %.*s\n", RT_NAME_MAX, tid->parent.name); #if defined(RT_USING_FINSH) && defined(MSH_USING_BUILT_IN_COMMANDS) list_thread(); #endif while(1); } return epc; }