[PATCH] ppc64: Add ptrace data breakpoint support

[pandora-kernel.git] / arch / ppc64 / kernel / signal32.c

diff --git a/arch/ppc64/kernel/signal32.c b/arch/ppc64/kernel/signal32.c
index 46f4d6c..a8b7a5a 100644 (file)
--- a/arch/ppc64/kernel/signal32.c
+++ b/arch/ppc64/kernel/signal32.c
@@ -970,6 +970,14 @@ int do_signal32(sigset_t *oldset, struct pt_regs *regs)
                newsp = regs->gpr[1];
        newsp &= ~0xfUL;
 
+       /*
+        * Reenable the DABR before delivering the signal to
+        * user space. The DABR will have been cleared if it
+        * triggered inside the kernel.
+        */
+       if (current->thread.dabr)
+               set_dabr(current->thread.dabr);
+
        /* Whee!  Actually deliver the signal.  */
        if (ka.sa.sa_flags & SA_SIGINFO)
                ret = handle_rt_signal32(signr, &ka, &info, oldset, regs, newsp);