On Monday 23 October 2006 09:16, Martin Guy wrote: > > Now, gcc4 can produce code with several return instructions (with no > > option to turn that of, as far as I understand). You cannot cut them out, > > and therefore you cannot chain the simple functions. > > ...unless you also map return instructions within the generated > functions into branches to the soon-to-be-dropped final "return"? Not > that I know anything about qemu internals mind u...
That's exactly what my gcc4 hacks do. It gets complicated because a x86 uses variable length insn encodings so you don't know where insn boundaries are, and a jmp instruction is larger than a ret instruction so it's not always possible to do a straight replacement. Paul _______________________________________________ Qemu-devel mailing list Qemu-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/qemu-devel
