RE: [patch] x86: ptrace and core-dump extensions for xstate

[Roland McGrath]

> Gdb calls cpuid during startup time to find out the actual xstate_size
> on the target machine. It has to be reliable. There is no need for
> another ptrace option. But we should document it clearly in ABI.

As I said, I think that is an extremely poor API choice.  There is no such
arcane requirement in the API now, so we do not have add one.


Thanks,
Roland
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