[lwp][rv64] fix the load page fault occurring in the signal handler function #10499
+4
−0
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拉取/合并请求描述:(PR description)
修复线程在信号处理函数中,访问TLS数据时出现load page fault异常,关联#10501
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为什么提交这份PR (why to submit this PR)
在rt-smart的riscv64架构中,当通过arch_thread_signal_enter从内核态切换到用户态信号处理程序时,未正确恢复线程指针(tp)寄存器。这会导致用户线程通过tp指针访问线程局部存储(TLS)时触发load page fault异常。
你的解决方案是什么 (what is your solution)
请提供验证的bsp和config (provide the config and bsp)
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当前拉取/合并请求的状态 Intent for your PR
必须选择一项 Choose one (Mandatory):
代码质量 Code Quality:
我在这个拉取/合并请求中已经考虑了 As part of this pull request, I've considered the following:
#if 0
代码,不包含已经被注释了的代码 All redundant code is removed and cleaned up