kprobes: introduce weak arch_check_ftrace_location() helper function
Introduce weak arch_check_ftrace_location() helper function which
architectures can override in order to implement handling of kprobes
on function tracer call sites on their own, without depending on
common code or implementing the KPROBES_ON_FTRACE feature.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index f7296e5..5297f9f 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -335,6 +335,7 @@
extern int arch_prepare_kprobe_ftrace(struct kprobe *p);
#endif
+int arch_check_ftrace_location(struct kprobe *p);
/* Get the kprobe at this addr (if any) - called with preemption disabled */
struct kprobe *get_kprobe(void *addr);