MIPS: Ptrace support for HARDWARE_WATCHPOINTS

This is the final part of the watch register patch.  Here we hook up
ptrace so that the user space debugger (gdb), can set and read the
registers.

Signed-off-by: David Daney <ddaney@avtrex.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/arch/mips/kernel/ptrace32.c b/arch/mips/kernel/ptrace32.c
index cac56a8c8679..e45105e3ef00 100644
--- a/arch/mips/kernel/ptrace32.c
+++ b/arch/mips/kernel/ptrace32.c
@@ -387,6 +387,16 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
                                 (unsigned long __user *) (unsigned long) data);
                 break;
 
+        case PTRACE_GET_WATCH_REGS:
+                ret = ptrace_get_watch_regs(child,
+                        (struct pt_watch_regs __user *) (unsigned long) addr);
+                break;
+
+        case PTRACE_SET_WATCH_REGS:
+                ret = ptrace_set_watch_regs(child,
+                        (struct pt_watch_regs __user *) (unsigned long) addr);
+                break;
+
         default:
                 ret = ptrace_request(child, request, addr, data);
                 break;