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    SubjectRe: [PATCH 00/12] add syscall tracepoints V3 - s390 arch update
    On Tue, Aug 25, 2009 at 04:39:51PM +0200, Heiko Carstens wrote:
    > On Tue, Aug 25, 2009 at 03:52:32PM +0200, Frederic Weisbecker wrote:
    > > On Tue, Aug 25, 2009 at 02:31:11PM +0200, Hendrik Brueckner wrote:
    > > > meta = find_syscall_meta((unsigned long)sys_call_table[i]);
    > > > syscalls_metadata[i] = meta;
    > > > }
    > > We can even probably move most of this code to the core, expect the tiny parts
    > > that rely on the arch syscall table.
    > >
    > > BTW, perhaps a silly question: would it be hard to have a generic syscall table
    > > common to every archs?
    >
    > That would cause a lot of churn. Every architecture initializes the syscall
    > table (two tables if CONFIG_COMPAT is enabled) differently.
    > s390 also only uses 32 bit pointers in the system call table for 64 bit
    > kernels, since we know that the functions are within the first 4GB.
    > I don't think its worth the effort.


    Ok.
    Well I remembered about some projects of a unified syscall table but may be
    it has been given up for such reasons.



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