通常，x86_64程序可能是使用-fomit-frame-pointer构建的，因为它是启用优化后的默认设置.

In general x86_64 programs are likely to have been built with -fomit-frame-pointer as it is the default when optimisation is on.

这意味着RBP不可用于展开堆栈，您将需要使用DWARF展开信息(如果有调试信息)或异常展开表.

What that means is that RBP is not usable for unwinding the stack and you will either need to use the DWARF unwind information (if you have debugging information available) or the exception unwind table.