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Diffstat (limited to 'kernel/kprobes.c')
-rw-r--r--kernel/kprobes.c18
1 files changed, 11 insertions, 7 deletions
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 831978cebf1d..06f58309fed2 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -1410,16 +1410,10 @@ static inline int check_kprobe_rereg(struct kprobe *p)
return ret;
}
-static int check_kprobe_address_safe(struct kprobe *p,
- struct module **probed_mod)
+int __weak arch_check_ftrace_location(struct kprobe *p)
{
- int ret = 0;
unsigned long ftrace_addr;
- /*
- * If the address is located on a ftrace nop, set the
- * breakpoint to the following instruction.
- */
ftrace_addr = ftrace_location((unsigned long)p->addr);
if (ftrace_addr) {
#ifdef CONFIG_KPROBES_ON_FTRACE
@@ -1431,7 +1425,17 @@ static int check_kprobe_address_safe(struct kprobe *p,
return -EINVAL;
#endif
}
+ return 0;
+}
+static int check_kprobe_address_safe(struct kprobe *p,
+ struct module **probed_mod)
+{
+ int ret;
+
+ ret = arch_check_ftrace_location(p);
+ if (ret)
+ return ret;
jump_label_lock();
preempt_disable();