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🐛 修复printf的bug

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This commit is contained in:
fslongjin
2022-05-07 13:54:28 +08:00
parent fd0147e04c
commit 37da6ef19e
5 changed files with 26 additions and 17 deletions
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8
kernel/syscall/syscall.c
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@ -362,7 +362,6 @@ uint64_t sys_brk(struct pt_regs *regs)
if ((int64_t)regs->r8 == -1)
{
kdebug("get brk_start=%#018lx", current_pcb->mm->brk_start);
return 0;
return current_pcb->mm->brk_start;
}
if ((int64_t)regs->r8 == -2)
@ -408,12 +407,7 @@ ul sys_ahci_end_req(struct pt_regs *regs)
// 系统调用的内核入口程序
void do_syscall_int(struct pt_regs *regs, unsigned long error_code)
{
if(regs->rax == SYS_BRK)
{
kdebug("is sysbrk");
regs->rax = 0xc00000UL;
return;
}
ul ret = system_call_table[regs->rax](regs);
if(regs->rax == SYS_BRK)
kdebug("brk ret=%#018lx", ret);