mirror of
https://github.com/DragonOS-Community/DragonOS.git
synced 2025-06-14 07:56:47 +00:00
352 lines
10 KiB
C
352 lines
10 KiB
C
#include "trap.h"
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#include "gate.h"
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#include <common/kprint.h>
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#include <debug/traceback/traceback.h>
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#include <process/process.h>
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#include <process/ptrace.h>
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#include <sched/sched.h>
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extern void ignore_int();
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// 0 #DE 除法错误
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void do_divide_error(struct pt_regs *regs, unsigned long error_code)
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{
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// kerror("do_divide_error(0)");
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kerror("do_divide_error(0),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\t pid=%d\n", error_code,
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regs->rsp, regs->rip, proc_current_cpu_id, current_pcb->pid);
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traceback(regs);
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current_pcb->state = PROC_STOPPED;
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sched();
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}
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// 1 #DB 调试异常
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void do_debug(struct pt_regs *regs, unsigned long error_code)
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{
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printk("[ ");
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printk_color(RED, BLACK, "ERROR / TRAP");
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printk(" ] do_debug(1),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp, regs->rip,
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proc_current_cpu_id);
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while (1)
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hlt();
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}
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// 2 不可屏蔽中断
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void do_nmi(struct pt_regs *regs, unsigned long error_code)
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{
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printk("[ ");
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printk_color(BLUE, BLACK, "INT");
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printk(" ] do_nmi(2),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp, regs->rip,
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proc_current_cpu_id);
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while (1)
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hlt();
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}
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// 3 #BP 断点异常
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void do_int3(struct pt_regs *regs, unsigned long error_code)
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{
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printk("[ ");
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printk_color(YELLOW, BLACK, "TRAP");
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printk(" ] do_int3(3),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp, regs->rip,
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proc_current_cpu_id);
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while (1)
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hlt();
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}
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// 4 #OF 溢出异常
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void do_overflow(struct pt_regs *regs, unsigned long error_code)
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{
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printk("[ ");
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printk_color(YELLOW, BLACK, "TRAP");
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printk(" ] do_overflow(4),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp,
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regs->rip, proc_current_cpu_id);
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current_pcb->state = PROC_STOPPED;
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sched();
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}
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// 5 #BR 越界异常
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void do_bounds(struct pt_regs *regs, unsigned long error_code)
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{
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kerror("do_bounds(5),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp, regs->rip,
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proc_current_cpu_id);
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while (1)
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hlt();
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}
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// 6 #UD 无效/未定义的机器码
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void do_undefined_opcode(struct pt_regs *regs, unsigned long error_code)
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{
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kerror("do_undefined_opcode(6),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d, pid:%ld", error_code,
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regs->rsp, regs->rip, proc_current_cpu_id, current_pcb->pid);
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traceback(regs);
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current_pcb->state = PROC_STOPPED;
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sched();
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}
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// 7 #NM 设备异常（FPU不存在）
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void do_dev_not_avaliable(struct pt_regs *regs, unsigned long error_code)
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{
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kerror("do_dev_not_avaliable(7),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp,
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regs->rip, proc_current_cpu_id);
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current_pcb->state = PROC_STOPPED;
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sched();
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}
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// 8 #DF 双重错误
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void do_double_fault(struct pt_regs *regs, unsigned long error_code)
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{
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printk("[ ");
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printk_color(RED, BLACK, "Terminate");
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printk(" ] do_double_fault(8),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp,
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regs->rip, proc_current_cpu_id);
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traceback(regs);
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current_pcb->state = PROC_STOPPED;
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sched();
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}
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// 9 协处理器越界（保留）
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void do_coprocessor_segment_overrun(struct pt_regs *regs, unsigned long error_code)
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{
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kerror("do_coprocessor_segment_overrun(9),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code,
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regs->rsp, regs->rip, proc_current_cpu_id);
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current_pcb->state = PROC_STOPPED;
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sched();
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}
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// 10 #TS 无效的TSS段
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void do_invalid_TSS(struct pt_regs *regs, unsigned long error_code)
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{
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printk("[");
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printk_color(RED, BLACK, "ERROR");
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printk("] do_invalid_TSS(10),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp,
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regs->rip, proc_current_cpu_id);
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printk_color(YELLOW, BLACK, "Information:\n");
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// 解析错误码
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if (error_code & 0x01)
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printk("The exception occurred during delivery of an event external to the program.\n");
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if (error_code & 0x02)
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printk("Refers to a descriptor in the IDT.\n");
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else
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{
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if (error_code & 0x04)
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printk("Refers to a descriptor in the current LDT.\n");
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else
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printk("Refers to a descriptor in the GDT.\n");
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}
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printk("Segment Selector Index:%10x\n", error_code & 0xfff8);
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printk("\n");
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current_pcb->state = PROC_STOPPED;
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sched();
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}
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// 11 #NP 段不存在
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void do_segment_not_exists(struct pt_regs *regs, unsigned long error_code)
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{
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kerror("do_segment_not_exists(11),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp,
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regs->rip, proc_current_cpu_id);
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current_pcb->state = PROC_STOPPED;
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sched();
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}
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// 12 #SS SS段错误
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void do_stack_segment_fault(struct pt_regs *regs, unsigned long error_code)
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{
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kerror("do_stack_segment_fault(12),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp,
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regs->rip, proc_current_cpu_id);
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traceback(regs);
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current_pcb->state = PROC_STOPPED;
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sched();
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}
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// 13 #GP 通用保护性异常
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void do_general_protection(struct pt_regs *regs, unsigned long error_code)
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{
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kerror("do_general_protection(13),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\tpid=%ld\n", error_code,
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regs->rsp, regs->rip, proc_current_cpu_id, current_pcb->pid);
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if (error_code & 0x01)
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printk_color(RED, BLACK,
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"The exception occurred during delivery of an event external to the program,such as an interrupt "
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"or an earlier exception.\n");
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if (error_code & 0x02)
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printk_color(RED, BLACK, "Refers to a gate descriptor in the IDT;\n");
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else
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printk_color(RED, BLACK, "Refers to a descriptor in the GDT or the current LDT;\n");
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if ((error_code & 0x02) == 0)
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if (error_code & 0x04)
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printk_color(RED, BLACK, "Refers to a segment or gate descriptor in the LDT;\n");
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else
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printk_color(RED, BLACK, "Refers to a descriptor in the current GDT;\n");
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printk_color(RED, BLACK, "Segment Selector Index:%#010x\n", error_code & 0xfff8);
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traceback(regs);
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current_pcb->state = PROC_STOPPED;
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sched();
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}
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// 14 #PF 页故障
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void do_page_fault(struct pt_regs *regs, unsigned long error_code)
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{
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unsigned long cr2 = 0;
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__asm__ __volatile__("movq %%cr2, %0" : "=r"(cr2)::"memory");
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kerror("do_page_fault(14),Error code :%#018lx,RSP:%#018lx, RBP=%#018lx, RIP:%#018lx CPU:%d, pid=%d\n", error_code,
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regs->rsp, regs->rbp, regs->rip, proc_current_cpu_id, current_pcb->pid);
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kerror("regs->rax = %#018lx\n", regs->rax);
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if (!(error_code & 0x01))
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printk_color(RED, BLACK, "Page Not-Present,\t");
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if (error_code & 0x02)
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printk_color(RED, BLACK, "Write Cause Fault,\t");
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else
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printk_color(RED, BLACK, "Read Cause Fault,\t");
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if (error_code & 0x04)
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printk_color(RED, BLACK, "Fault in user(3)\t");
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else
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printk_color(RED, BLACK, "Fault in supervisor(0,1,2)\t");
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if (error_code & 0x08)
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printk_color(RED, BLACK, ",Reserved Bit Cause Fault\t");
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if (error_code & 0x10)
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printk_color(RED, BLACK, ",Instruction fetch Cause Fault");
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printk_color(RED, BLACK, "\n");
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printk_color(RED, BLACK, "CR2:%#018lx\n", cr2);
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traceback(regs);
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current_pcb->state = PROC_STOPPED;
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sched();
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}
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// 15 Intel保留，请勿使用
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// 16 #MF x87FPU错误
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void do_x87_FPU_error(struct pt_regs *regs, unsigned long error_code)
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{
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kerror("do_x87_FPU_error(16),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp,
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regs->rip, proc_current_cpu_id);
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while (1)
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hlt();
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}
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// 17 #AC 对齐检测
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void do_alignment_check(struct pt_regs *regs, unsigned long error_code)
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{
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kerror("do_alignment_check(17),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp,
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regs->rip, proc_current_cpu_id);
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current_pcb->state = PROC_STOPPED;
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sched();
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}
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// 18 #MC 机器检测
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void do_machine_check(struct pt_regs *regs, unsigned long error_code)
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{
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kerror("do_machine_check(18),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp,
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regs->rip, proc_current_cpu_id);
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current_pcb->state = PROC_STOPPED;
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sched();
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}
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// 19 #XM SIMD浮点异常
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void do_SIMD_exception(struct pt_regs *regs, unsigned long error_code)
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{
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kerror("do_SIMD_exception(19),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code, regs->rsp,
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regs->rip, proc_current_cpu_id);
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current_pcb->state = PROC_STOPPED;
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sched();
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}
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// 20 #VE 虚拟化异常
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void do_virtualization_exception(struct pt_regs *regs, unsigned long error_code)
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{
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kerror("do_virtualization_exception(20),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\t CPU:%d\n", error_code,
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regs->rsp, regs->rip, proc_current_cpu_id);
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current_pcb->state = PROC_STOPPED;
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sched();
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}
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// 21-21 Intel保留，请勿使用
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/**
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* @brief 当系统收到未知的中断时，执行此处理函数
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*
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* @param regs
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* @param error_code
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*/
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void ignore_int_handler(struct pt_regs *regs, unsigned long error_code)
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{
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kwarn("Unknown interrupt or fault at RIP.\n");
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}
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void sys_vector_init()
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{
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// 将idt重置为新的ignore_int入点（此前在head.S中有设置，
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// 但是那个不完整，某些版本的编译器的输出，在真机运行时会破坏进程执行环境，从而导致#GP
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for (int i = 0; i < 256; ++i)
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set_intr_gate(i, 0, ignore_int);
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set_trap_gate(0, 0, divide_error);
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set_trap_gate(1, 0, debug);
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set_intr_gate(2, 0, nmi);
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set_system_trap_gate(3, 0, int3);
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set_system_trap_gate(4, 0, overflow);
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set_system_trap_gate(5, 0, bounds);
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set_trap_gate(6, 0, undefined_opcode);
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set_trap_gate(7, 0, dev_not_avaliable);
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set_trap_gate(8, 0, double_fault);
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set_trap_gate(9, 0, coprocessor_segment_overrun);
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set_trap_gate(10, 0, invalid_TSS);
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set_trap_gate(11, 0, segment_not_exists);
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set_trap_gate(12, 0, stack_segment_fault);
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set_trap_gate(13, 0, general_protection);
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set_trap_gate(14, 0, page_fault);
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// 中断号15由Intel保留，不能使用
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set_trap_gate(16, 0, x87_FPU_error);
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set_trap_gate(17, 0, alignment_check);
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set_trap_gate(18, 0, machine_check);
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set_trap_gate(19, 0, SIMD_exception);
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set_trap_gate(20, 0, virtualization_exception);
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// 中断号21-31由Intel保留，不能使用
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// 32-255为用户自定义中断内部
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} |