Re: Linux move to remove unused Kernel symbols effects LiS

Dave,

For 2.16.18 patch releases, the following are also necessary on hppa architecture
(as hppa cannot synthesize a system call from within the kernel as other architectures do):

sys_unlink
sys_mount
sys_umount
sys_umount2

These are not exported on any kernels and I already rip them from the system map.

2.6 is no different: it still generates a system map file when the kernel is built
and it is still being installed in all the usual places.  Also /proc/ksyms still
exists.  The same symbol ripping approach to non-exported symbols works quite fine.

--brian

On Wed, 19 Jan 2005, Dave Grothe wrote:

> 
>    I  have  mailed  Arjan  about this and will see what he has to say.  I
>    only  see  5  symbols  that LiS uses that are on the list and of those
>    only 3 are really necessary.
>    getname
>    kill_pg
>    get_empty_filp
>    do_settimeofday
>    pci_dac_set_dma_mask
>    -- Dave
>    At 02:20 PM 1/19/2005, Matthew Gierlach wrote:
> 
>      Hi Jeff:
>              I  have  mot  hard of this effort. However, we should raise
>      our
>              collective  LiS  concern  to lobby for the retention of the
>      LiS
>              required  symbols.  Linux  2.6  makes  it very difficult to
>      integrate
>              LiS.  There  are  barriers and obstacles in the kernel that
>      appear
>              to be targeted at deterring efforts to enhance Linux kernel
>               functionality like LiS does.
>              If  the  symbols LiS needs are not made avaialble, then the
>      Linux
>              kernel becomes a closed system. That is not acceptable.
>              Matt Gierlach - Adax, Inc.
> 
>      On Wed, 19 Jan 2005, Jeff Smith wrote:
>      > Date: Wed, 19 Jan 2005 15:13:51 -0500
>      > From: Jeff Smith <[email protected]>
>      > To: [email protected]
>      >  Subject:  [Linux-streams]  Linux  move  to  remove unused Kernel
>      symbols
>      >     effects LiS
>      >
>      >  There is an effort underway within the Linux kernel community to
>      remove  "unused" exports from the kernel.  They have created a list
>      of these symbols at: [1]http://people.redhat.com/arjanv/unused
>      >
>      >  We have done a scan of LiS and found hits against this list. Has
>      anyone heard of this effort? It looks like a 2.6 kernel effort only
>      for now.
>      >
>      > Jeff L Smith
>      _______________________________________________
>      Linux-streams mailing list
>      [email protected]
>      [2]http://gsyc.escet.urjc.es/mailman/listinfo/linux-streams
> 
> References
> 
>    1. http://people.redhat.com/arjanv/unused
>    2. http://gsyc.escet.urjc.es/mailman/listinfo/linux-streams


-- 
Brian F. G. Bidulock    ¦ The reasonable man adapts himself to the ¦
[email protected]    ¦ world; the unreasonable one persists in  ¦
http://www.openss7.org/ ¦ trying  to adapt the  world  to himself. ¦
                        ¦ Therefore  all  progress  depends on the ¦
                        ¦ unreasonable man. -- George Bernard Shaw ¦