tree 02cc8c1d9d0202d76f988ae242ccbc328a8e43cd
parent 4f4acc9472e54ce702f1d85fc9e6d57767dec91f
author Helge Deller <deller@gmx.de> 1459340071 +0200
committer Helge Deller <deller@gmx.de> 1459420118 +0200

parisc: Fix and enable seccomp filter support

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: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v4.5