On Tuesday 25 January 2005 22:54, Michael Halcrow wrote: > On Thu, Nov 18, 2004 at 06:39:26PM +0100, Blaisorblade wrote: > > On Thursday 18 November 2004 17:09, Michael Halcrow wrote: > > Ok, please list the new syscalls - I see at least add_key() and > > request_key() too - are these three the only ones? I'll build the > > patch ASAP when getting your answer. > > I spent some more time today trying to implement these silly > request_key, add_key, and keyctl syscalls in the 2.6.10 kernel, but I > haven't had any luck. It would be a *tremendous* help for me in my > filesystem development if I could just get these syscalls working in > UML; it is much more tedious having to use kgdb in my debugging. I > tried adding entries on to the end of the > include/sysdep-i386/syscalls.h and the kernel/sys_call_table.c files. > I also exported the symbols in os-Linux/user_syms.c. I am trying to > work from the documentation here: > > http://jdike.stearns.org/uml/arch-port.html > > I am not entirely clear on the function that ``[ 222 ] = > sys_ni_syscall,'' at the end of the table in syscalls.h is supposed to > serve. Syscalls in UML contstitutes new territory for me. Well, like > I would assume that the __NR_* assignments in the UML environment are > identical to those of the host system. That means that request_key, > for example, maps to identifier 288 on the i386 architecture, right? Yes, because when a program says "I want to call the write() syscall", all it contains to identify the "write" syscall between all the existing ones is the __NR_write value... so it is very important that they never change (on the same architecture). As long as UML must emulate i386, the identifiers must match.
> The keyctl.c utility defines these syscall identifiers, so I need to > make sure that I get the numbers right for the syscall table lookup. > Thanks, > Mike Well, it should be fixed in the -mm tree (and probably in 2.6.11-rc2-bk2, I guess, though it's not tested)... browse the patches at http://user-mode-linux.sourceforge.net/patches.html. It should be in next release... -- Paolo Giarrusso, aka Blaisorblade Linux registered user n. 292729 http://www.user-mode-linux.org/~blaisorblade ------------------------------------------------------- This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting Tool for open source databases. Create drag-&-drop reports. Save time by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc. Download a FREE copy at http://www.intelliview.com/go/osdn_nl _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
