• Ulrich Drepper's avatar
    [PATCH] fstatat64 support · cff2b760
    Ulrich Drepper authored
    The *at patches introduced fstatat and, due to inusfficient research, I
    used the newfstat functions generally as the guideline.  The result is that
    on 32-bit platforms we don't have all the information needed to implement
    This patch modifies the code to pass up 64-bit information if
    __ARCH_WANT_STAT64 is defined.  I renamed the syscall entry point to make
    this clear.  Other archs will continue to use the existing code.  On x86-64
    the compat code is implemented using a new sys32_ function.  this is what
    is done for the other stat syscalls as well.
    This patch might break some other archs (those which define
    __ARCH_WANT_STAT64 and which already wired up the syscall).  Yet others
    might need changes to accomodate the compatibility mode.  I really don't
    want to do that work because all this stat handling is a mess (more so in
    glibc, but the kernel is also affected).  It should be done by the arch
    maintainers.  I'll provide some stand-alone test shortly.  Those who are
    eager could compile glibc and run 'make check' (no installation needed).
    The patch below has been tested on x86 and x86-64.
    Signed-off-by: default avatarUlrich Drepper <drepper@redhat.com>
    Cc: Christoph Hellwig <hch@lst.de>
    Cc: Andi Kleen <ak@muc.de>
    Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
stat.c 10.5 KB