On Fri, Jan 05, 2007 at 08:53:07AM +0000, Christoph Hellwig wrote: > On Thu, Jan 04, 2007 at 03:31:46PM -0800, H. J. Lu wrote: > > Here is one implementation of ELF sharable section proposal: > > > > http://groups-beta.google.com/group/generic-abi/browse_thread/thread/bca08f6560f61b0d > > > > Several people have expressed interests. I post it here for comments. > > I used OS specific values. If we get consensus, I can change those > > values to generic range. > > For Linux pleases don't put this into the ABI until the OS actually > supports this type of memory. Which I doubt it will anytime soon as > the concept is rather oddly defined and no one posted a kernel-level > design and implementation yet.
Kernel support may be useful, but not strictly required. Consider shared libraries with sharable segment, they are loaded by dynamic linker, not kernel. Another thing, a sharabale segment isn't a PT_LOAD segment. Dynamic linker doesn't have to know it for applications to run correctly. So it is backward compatible. H.J.
