MIPS: Give __secure_computing() access to syscall arguments.
authorDavid Daney <david.daney@cavium.com>
Tue, 13 Jun 2017 22:28:47 +0000 (15:28 -0700)
committerRalf Baechle <ralf@linux-mips.org>
Wed, 28 Jun 2017 10:22:39 +0000 (12:22 +0200)
commit669c4092225f0ed5df12ebee654581b558a5e3ed
treee8459184eab6c4ad965058ee74c8d77b2ba7276e
parentf381bf6d82f032b7410185b35d000ea370ac706b
MIPS: Give __secure_computing() access to syscall arguments.

KProbes of __seccomp_filter() are not very useful without access to
the syscall arguments.

Do what x86 does, and populate a struct seccomp_data to be passed to
__secure_computing().  This allows samples/bpf/tracex5 to extract a
sensible trace.

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Matt Redfearn <matt.redfearn@imgtec.com>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/16368/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
arch/mips/kernel/ptrace.c