通过linux x86-64函数调用可以保留哪些寄存器
问题描述：
我相信我了解linux x86-64 ABI如何使用寄存器和堆栈将参数传递给函数(请参阅
I believe I understand how the linux x86-64 ABI uses registers and stack to pass parameters to a function (cf. previous ABI discussion). What I'm confused about is if/what registers are expected to be preserved across a function call. That is, what registers are guarenteed not to get clobbered?