83 lines
2.5 KiB
C
83 lines
2.5 KiB
C
/* Copyright 2018 Canaan Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "dump.h"
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#include "interrupt.h"
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#include <encoding.h>
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#include <stdlib.h>
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void __attribute__((weak)) handle_misaligned_fetch(uintptr_t *regs, uintptr_t cause)
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{
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dump_core("misaligned fetch", regs, cause);
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sys_exit(1337);
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}
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void __attribute__((weak)) handle_fault_fetch(uintptr_t *regs, uintptr_t cause)
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{
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dump_core("fault fetch", regs, cause);
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sys_exit(1337);
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}
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void __attribute__((weak)) handle_illegal_instruction(uintptr_t *regs, uintptr_t cause)
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{
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dump_core("illegal instruction", regs, cause);
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sys_exit(1337);
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}
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void __attribute__((weak)) handle_breakpoint(uintptr_t *regs, uintptr_t cause)
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{
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dump_core("breakpoint", regs, cause);
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sys_exit(1337);
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}
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void __attribute__((weak)) handle_misaligned_load(uintptr_t *regs, uintptr_t cause)
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{
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dump_core("misaligned load", regs, cause);
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sys_exit(1337);
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}
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void __attribute__((weak)) handle_fault_load(uintptr_t *regs, uintptr_t cause)
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{
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dump_core("fault load", regs, cause);
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sys_exit(1337);
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}
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void __attribute__((weak)) handle_misaligned_store(uintptr_t *regs, uintptr_t cause)
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{
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dump_core("misaligned store", regs, cause);
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sys_exit(1337);
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}
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void __attribute__((weak)) handle_fault_store(uintptr_t *regs, uintptr_t cause)
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{
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dump_core("fault store", regs, cause);
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sys_exit(1337);
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}
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void handle_except(uintptr_t *regs, uintptr_t cause)
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{
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static void (*const cause_table[])(uintptr_t * regs, uintptr_t cause) = {
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[CAUSE_MISALIGNED_FETCH] = handle_misaligned_fetch,
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[CAUSE_FAULT_FETCH] = handle_fault_fetch,
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[CAUSE_ILLEGAL_INSTRUCTION] = handle_illegal_instruction,
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[CAUSE_BREAKPOINT] = handle_breakpoint,
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[CAUSE_MISALIGNED_LOAD] = handle_misaligned_load,
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[CAUSE_FAULT_LOAD] = handle_fault_load,
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[CAUSE_MISALIGNED_STORE] = handle_misaligned_store,
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[CAUSE_FAULT_STORE] = handle_fault_store
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};
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cause_table[cause & CAUSE_HYPERVISOR_IRQ_REASON_MASK](regs, cause);
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}
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