Chris Wright wrote:
* Zachary Amsden ([email protected]) wrote:
Allow creation of an compile time hole at the top of linear address space.
Extended to allow a dynamic hole in linear address space, 7/2005. This
required some serious hacking to get everything perfect, but the end result
appears to function quite nicely. Everyone can now share the appreciation
of pseudo-undocumented ELF OS fields, which means core dumps, debuggers
and even broken or obsolete linkers may continue to work.
Thanks. Gerd did something similar (although I believe it's simpler,
don't recall the relocation magic) for Xen. Either way, it's useful
from Xen perspective.
I believe Xen disables sysenter. The complications in my patch come
from the fact that the vsyscall page has to be relocated dynamically,
requiring, basically run time linking on the page and some tweaks to get
sysenter to work. If you don't use vsyscall (say, non-TLS glibc), then
you don't need that complexity. But I think it might be needed now,
even for Xen.
Zach
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
