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Code Issues Releases Wiki Activity

new: kthread机制

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fslongjin
2022-09-30 15:30:50 +08:00
parent edef02286e
commit 02a6b3a303
21 changed files with 802 additions and 326 deletions
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4
kernel/syscall/syscall.c
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@ -170,7 +170,7 @@ uint64_t sys_read(struct pt_regs *regs)
int64_t count = (int64_t)regs->r10;
// 校验buf的空间范围
if(SYSCALL_FROM_USER(regs) && (!verify_area(buf, count)))
if(SYSCALL_FROM_USER(regs) && (!verify_area((uint64_t)buf, count)))
return -EPERM;
// kdebug("sys read: fd=%d", fd_num);
@ -210,7 +210,7 @@ uint64_t sys_write(struct pt_regs *regs)
int64_t count = (int64_t)regs->r10;
// 校验buf的空间范围
if(SYSCALL_FROM_USER(regs) && (!verify_area(buf, count)))
if(SYSCALL_FROM_USER(regs) && (!verify_area((uint64_t)buf, count)))
return -EPERM;
kdebug("sys write: fd=%d", fd_num);