x86: compat_ptrace_request

This adds a compat_ptrace_request that is the analogue of ptrace_request
for the things that 32-on-64 ptrace implementations can share in common.
So far there are just a couple of requests handled generically.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 4 insertions, 0 deletions

diff --git a/include/linux/compat.h b/include/linux/compat.h
index ba29d4c59643..a907fbede6c3 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -243,6 +243,10 @@ asmlinkage long compat_sys_migrate_pages(compat_pid_t pid,
                 compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes,
                 const compat_ulong_t __user *new_nodes);
 
+extern int compat_ptrace_request(struct task_struct *child,
+                                 compat_long_t request,
+                                 compat_ulong_t addr, compat_ulong_t data);
+
 /*
  * epoll (fs/eventpoll.c) compat bits follow ...
  */