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    SubjectRe: [PATCH] Complain about missing system calls.
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    From: David Woodhouse <dwmw2@infradead.org>
    Date: Thu, 08 Mar 2007 23:01:13 +0000

    > 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
    >
    > Signed-off-by: David Woodhouse <dwmw2@infradead.org>

    David, thanks for this __incredibly__ __useful__ patch. I kicked it
    around on sparc64 and found some more ignores to add, see below.

    The vast majority of them vector to sys_ni_syscall in the i386 syscall
    table.

    sys_ugetrlimit is only necessary if the platform started out
    using the non-SuS compliant sys_old_getrlimit()

    The rest, like ioperm, iopl, modify_ldt, et al. are i386
    specific.

    Signed-off-by: David S. Miller <davem@davemloft.net>

    --- a/init/missing_syscalls.c.ORIG 2007-03-08 16:11:00.000000000 -0800
    +++ b/init/missing_syscalls.c 2007-03-08 16:02:30.000000000 -0800
    @@ -18,6 +18,22 @@
    #endif

    /* i386-specific or historical system calls */
    +#define __IGNORE_break
    +#define __IGNORE_stty
    +#define __IGNORE_gtty
    +#define __IGNORE_ftime
    +#define __IGNORE_prof
    +#define __IGNORE_lock
    +#define __IGNORE_mpx
    +#define __IGNORE_ulimit
    +#define __IGNORE_profil
    +#define __IGNORE_ioperm
    +#define __IGNORE_iopl
    +#define __IGNORE_idle
    +#define __IGNORE_modify_ldt
    +#define __IGNORE_getpmsg
    +#define __IGNORE_putpmsg
    +#define __IGNORE_ugetrlimit
    #define __IGNORE_mmap2
    #define __IGNORE_vm86
    #define __IGNORE_vm86old
    -
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