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Code Issues Releases Wiki Activity

能进入用户态程序，但无法正确进行系统调用

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This commit is contained in:
fslongjin
2022-04-10 23:53:07 +08:00
parent d78db8225c
commit c09c6d4e66
6 changed files with 19 additions and 10 deletions
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2
kernel/exception/entry.S
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@ -106,7 +106,7 @@ Err_Code:
ENTRY(system_call)
// 由于sysenter指令会禁用中断，因此要在这里手动开启中断
sti;
hlt
subq $0x38, %rsp
cld;

2
kernel/exception/trap.c
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@ -168,7 +168,7 @@ void do_stack_segment_fault(struct pt_regs *regs, unsigned long error_code)
// 13 #GP 通用保护性异常
void do_general_protection(struct pt_regs *regs, unsigned long error_code)
{
hlt();
kerror("do_general_protection(13),\tError Code:%#18lx,\tRSP:%#18lx,\tRIP:%#18lx\n", error_code, regs->rsp, regs->rip);
if (error_code & 0x01)
printk_color(RED, BLACK, "The exception occurred during delivery of an event external to the program,such as an interrupt or an earlier exception.\n");