kprobes: Add IPMODIFY flag to kprobe_ftrace_ops

Add FTRACE_OPS_FL_IPMODIFY flag to kprobe_ftrace_ops
since kprobes can changes regs->ip.

Link: http://lkml.kernel.org/r/20141121102523.11844.21298.stgit@localhost.localdomain
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 3995f546d0f3f9c7bc845e7053f7a099088108a2..831978cebf1da5e6ec858fca2ab654ad17c9c648 100644 (file)
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -915,7 +915,7 @@ static struct kprobe *alloc_aggr_kprobe(struct kprobe *p)
 #ifdef CONFIG_KPROBES_ON_FTRACE
 static struct ftrace_ops kprobe_ftrace_ops __read_mostly = {
        .func = kprobe_ftrace_handler,
-       .flags = FTRACE_OPS_FL_SAVE_REGS,
+       .flags = FTRACE_OPS_FL_SAVE_REGS | FTRACE_OPS_FL_IPMODIFY,
 };
 static int kprobe_ftrace_enabled;