Function conflicts between kernel and libc

Simon 'corecode' Schubert corecode at fs.ei.tum.de
Wed Dec 6 04:10:03 PST 2006


Matthew Dillon wrote:
:
:This is an OpenPGP/MIME signed message (RFC 2440 and 3156)
:--------------enig27D47D72C34079BE1F6C35CA
:Content-Type: text/plain; charset=ISO-8859-1; format=flowed
:Content-Transfer-Encoding: 7bit
:
:Matthew Dillon wrote:
:>     There are a number of function and type conflicts between the kernel
:>     and libc that I need to deal with.  My current plan is as follows:
:
:I keep wondering if there isn't a cleaner way to separate namespaces.
    So do I.  But I want to use as few code tricks as possible.  Renaming
    is the cleanest solution but even I can't justify renaming simple
    string functions.
maybe we should not link libc at all?  or at least use a linker script which removes all functions from libc (won't work possibly).

i mean, what do we need from libc?

- write (syscall)
- read (syscall)
- open (syscall)
- mmap (syscall) to get pages/memory
- new VM syscalls
- maybe ioctl (syscall)
apart from that, the kernel is self-hosting anyways.  maybe it will be less effort to not use libc functions that to rename all overlaps.  actually, i'm sure about that.

cheers
 simon
--
Serve - BSD     +++  RENT this banner advert  +++    ASCII Ribbon   /"\
Work - Mac      +++  space for low €€€ NOW!1  +++      Campaign     \ /
Party Enjoy Relax   |   http://dragonflybsd.org      Against  HTML   \
Dude 2c 2 the max   !   http://golden-apple.biz       Mail + News   / \
Attachment:
signature.asc
-------------- next part --------------
A non-text attachment was scrubbed...
Name: pgp00013.pgp
Type: application/octet-stream
Size: 252 bytes
Desc: "Description: OpenPGP digital signature"
URL: <http://lists.dragonflybsd.org/pipermail/kernel/attachments/20061206/d0f0ea08/attachment-0020.obj>


More information about the Kernel mailing list