From 79170fda313ed5be2394f87aa2a00d597f8ed4a1 Mon Sep 17 00:00:00 2001 From: Kyle Huey Date: Mon, 20 Mar 2017 01:16:24 -0700 Subject: x86/syscalls/32: Wire up arch_prctl on x86-32 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Hook up arch_prctl to call do_arch_prctl() on x86-32, and in 32 bit compat mode on x86-64. This allows to have arch_prctls that are not specific to 64 bits. On UML, simply stub out this syscall. Signed-off-by: Kyle Huey Cc: Grzegorz Andrejczuk Cc: kvm@vger.kernel.org Cc: Radim Krčmář Cc: Peter Zijlstra Cc: Dave Hansen Cc: Andi Kleen Cc: linux-kselftest@vger.kernel.org Cc: Nadav Amit Cc: Robert O'Callahan Cc: Richard Weinberger Cc: "Rafael J. Wysocki" Cc: Borislav Petkov Cc: Andy Lutomirski Cc: Len Brown Cc: Shuah Khan Cc: user-mode-linux-devel@lists.sourceforge.net Cc: Jeff Dike Cc: Alexander Viro Cc: user-mode-linux-user@lists.sourceforge.net Cc: David Matlack Cc: Boris Ostrovsky Cc: Dmitry Safonov Cc: linux-fsdevel@vger.kernel.org Cc: Paolo Bonzini Link: http://lkml.kernel.org/r/20170320081628.18952-7-khuey@kylehuey.com Signed-off-by: Thomas Gleixner --- include/linux/compat.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/compat.h b/include/linux/compat.h index aef47be2a5c1..af9dbc44fd92 100644 --- a/include/linux/compat.h +++ b/include/linux/compat.h @@ -723,6 +723,8 @@ asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid, asmlinkage long compat_sys_fanotify_mark(int, unsigned int, __u32, __u32, int, const char __user *); +asmlinkage long compat_sys_arch_prctl(int option, unsigned long arg2); + /* * For most but not all architectures, "am I in a compat syscall?" and * "am I a compat task?" are the same question. For architectures on which -- cgit v1.2.3