• Helge Deller's avatar
    parisc: Fix and enable seccomp filter support · 910cd32e
    Helge Deller authored
    
    
    The seccomp filter support requires careful handling of task registers.  This
    includes reloading of the return value (%r28) and proper syscall exit if
    secure_computing() returned -1.
    
    Additionally we need to sign-extend the syscall number from signed 32bit to
    signed 64bit in do_syscall_trace_enter() since the ptrace interface only allows
    storing 32bit values in compat mode.
    
    Signed-off-by: default avatarHelge Deller <deller@gmx.de>
    Cc: stable@vger.kernel.org # v4.5
    910cd32e