Eric Lee / smarc-fsl-linux-kernel

20 Dec, 2010

1 commit

  • 6e5f68564   checksyscalls: Fix stand-alone usage ... Browse Code »

    The usage help in the comments
    - refers to the wrong script name,
    - doesn't mention that $srctree must be set.

    Hence correct the script name, and derive the source tree path from the script
    path, so we no longer need to rely on $srctree being set by the caller.

    Signed-off-by: Geert Uytterhoeven
    Acked-by: Sam Ravnborg
    Signed-off-by: Michal Marek

    Geert Uytterhoeven
     

26 Jun, 2010

1 commit

  • b51cae21e   Add wait4() back to the set of <asm-generic/unistd.h> syscalls. ... Browse Code »

    The initial pass at the generic ABI assumed that wait4() could be
    easily expressed using waitid(). Although it's true that wait4()
    can be built on waitid(), it's awkward enough that it makes more
    sense to continue to include wait4 in the generic syscall ABI.

    Since there is already a deprecated wait4 in the ABI, this change
    converts that wait4 into old_wait, and puts wait4 in the next
    available slot for new supported syscalls, after the platform-specific
    syscalls at number 260.

    Signed-off-by: Chris Metcalf
    Acked-by: Arnd Bergmann

    Chris Metcalf
     

12 Jun, 2009

1 commit

  • e64a1617e   asm-generic: add a generic unistd.h ... Browse Code »

    A new architecture should only define a minimal set of system
    calls while still providing the full functionality. This version
    of unistd.h has gone through intensive review to make sure that
    by default it only enables syscalls that do not already have
    a more featureful replacement.

    It is modeled after the x86-64 version of unistd.h, which unifies
    the syscall number definition and the actual system call table
    in a single file, in order to keep them synchronized much more
    easily.

    This first version still keeps legacy system call definitions
    around, guarded by various #ifdefs, and with numbers larger
    than 1024. The idea behind this is to make it easier for
    new architectures to transition from a full list to the reduced
    set. In particular, the new microblaze architecture that should
    migrate to using the generic ABI headers can at least use an
    existing uClibc source tree without major rewrites during the
    conversion.

    Signed-off-by: Arnd Bergmann

    Arnd Bergmann
     

30 Oct, 2008

1 commit

23 Oct, 2008

1 commit

11 Oct, 2007

1 commit

29 Jun, 2007

1 commit

  • edd5cd4a9   Introduce fixed sys_sync_file_range2() syscall, implement on PowerPC and ARM ... Browse Code »

    Not all the world is an i386. Many architectures need 64-bit arguments to be
    aligned in suitable pairs of registers, and the original
    sys_sync_file_range(int, loff_t, loff_t, int) was therefore wasting an
    argument register for padding after the first integer. Since we don't
    normally have more than 6 arguments for system calls, that left no room for
    the final argument on some architectures.

    Fix this by introducing sys_sync_file_range2(int, int, loff_t, loff_t) which
    all fits nicely. In fact, ARM already had that, but called it
    sys_arm_sync_file_range. Move it to fs/sync.c and rename it, then implement
    the needed compatibility routine. And stop the missing syscall check from
    bitching about the absence of sys_sync_file_range() if we've implemented
    sys_sync_file_range2() instead.

    Tested on PPC32 and with 32-bit and 64-bit userspace on PPC64.

    Signed-off-by: David Woodhouse
    Acked-by: Russell King
    Cc: Arnd Bergmann
    Cc: Paul Mackerras
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    David Woodhouse
     

03 May, 2007

1 commit

  • c53aeca05   kbuild: complain about missing system calls ... Browse Code »

    Most system calls seems 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

    The file scripts/checksyscalls.sh list a number of legacy system calls
    that are ignored because they only makes sense on i386 systems.

    Other contributors to this patch are Russell King
    and Stéphane Jourdois

    Signed-off-by: David Woodhouse
    Signed-off-by: Sam Ravnborg

    Sam Ravnborg