On Sun, 7 Feb 2010, Richard Henderson wrote: > > I imagine that QEMU's VDSO would not have the complicated bits that the > kernel's version does, where it arranges to read the clock without going into > kernel space. I imagine QEMU would simply stuff a normal syscall sequence in > there, which would automatically be emulated in the normal way.
For what it's worth, this is how various other systems I'm aware of handle x86_64 VDSOs (both Valgrind and the m5 simulator do it this way). Vince
