提交 67f55934 编写于 作者: V Vasily Gorbik

s390/unwind: report an error if pt_regs are not on stack

If unwinder is looking at pt_regs which is not on stack then something
went wrong and an error has to be reported rather than successful
unwinding termination.
Reviewed-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: NVasily Gorbik <gor@linux.ibm.com>
上级 7bcaad1f
无相关合并请求
......@@ -76,7 +76,7 @@ bool unwind_next_frame(struct unwind_state *state)
/* No back-chain, look for a pt_regs structure */
sp = state->sp + STACK_FRAME_OVERHEAD;
if (!on_stack(info, sp, sizeof(struct pt_regs)))
goto out_stop;
goto out_err;
regs = (struct pt_regs *) sp;
if (READ_ONCE_NOCHECK(regs->psw.mask) & PSW_MASK_PSTATE)
goto out_stop;
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册
反馈
建议
客服 返回
顶部