lkml.org 
[lkml]   [2007]   [Mar]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    SubjectRe: [PATCH] Complain about missing system calls.
    From
    Date
    David Woodhouse <dwmw2@infradead.org> writes:

    > Most system calls seem to get added to i386 first. This patch
    > automatically generates a warning for any new system call which is
    > implemented on i386 but not the architecture currently being compiled.
    > On PowerPC at the moment, for example, it results in these warnings:
    > init/missing_syscalls.h:935:3: warning: #warning syscall sync_file_range not implemented
    > init/missing_syscalls.h:947:3: warning: #warning syscall getcpu not implemented
    > init/missing_syscalls.h:950:3: warning: #warning syscall epoll_pwait not implemented

    I think a better solution would be to finally switch to auto generated
    system call tables for newer system calls. The original reason why the
    architectures have different system call numbers -- compatibility with
    another "native" Unix -- is completely obsolete now. This leaves only
    minor differences of compat stub vs non compat stub and a few
    architecture specific calls.

    Of course the existing syscall numbers can't be changed, but for all new
    calls one could just add automatically for everybody.

    A global table with two entries (compat and non compat) and a per arch
    override table should be sufficient.

    Comments?

    -Andi
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2007-03-09 16:15    [W:4.159 / U:0.080 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site