On 10/16/2017 01:32 PM, Jan Beulich wrote: > Since the emulator acts on the live hardware registers, we need to > prevent the compiler from using them e.g. for inlined memcpy() / > memset() (as gcc7 does).
Why doesn't this affect the rest of the hypervisor too, since we don't save and restore the *mm registers? > We can't, however, set this from the command > line, as otherwise the 64-bit build would face issues with functions > returning floating point values and being declared in standard headers. Sorry, just to clarify: You mean that there are standard headers which contain prototypes for functions which return floating point values; we include those headers but do not call the functions; and adding the #pragma to the command-line would cause the compiler to choke on the prototypes (even though the functions are never actually called)? -George _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
