RE: Definition of eax and rax

["Jan Beulich" <jbeulich@novell.com>]

>>> "Li, Xin B" <xin.b.li@intel.com> 13.12.06 13:15 >>>
>And I don't think it can work for none GCC compiler, since we use eax from time to time :-(
>#ifdef __GNUC__
>/* Anonymous union includes both 32- and 64-bit names (e.g., eax/rax). */
>#define __DECL_REG(name) union { uint64_t r ## name, e ## name; }
>#else
>/* Non-gcc sources must always use the proper 64-bit name (e.g., rax). */
>#define __DECL_REG(name) uint64_t r ## name
>#endif

This is meant to help non-Xen sources including Xen headers. Xen itself is always
assumed to be compiled with gcc as I understand it.

Jan