Copy old kprobe to newly alloced optimized_kprobe before
arch_prepare_optimized_kprobe(). Original kprove can brings more
information to optimizer.
Signed-off-by: Wang Nan <wangn...@huawei.com>
Cc: Russell King <li...@arm.linux.org.uk>
Cc: "David A. Long" <dave.l...@linaro.org>
Cc: Jon Medhurst <t...@linaro.org>
Cc: Taras Kondratiuk <taras.kondrat...@linaro.org>
Cc: Ben Dooks <ben.do...@codethink.co.uk>
Cc: Ananth N Mavinakayanahalli <ana...@in.ibm.com>
Cc: Anil S Keshavamurthy <anil.s.keshavamur...@intel.com>
Cc: "David S. Miller" <da...@davemloft.net>
Cc: Masami Hiramatsu <masami.hiramatsu...@hitachi.com>
Cc: Will Deacon <will.dea...@arm.com>
---
kernel/kprobes.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index 3995f54..33cf568 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -730,7 +730,12 @@ static struct kprobe *alloc_aggr_kprobe(struct kprobe *p)
return NULL;
INIT_LIST_HEAD(&op->list);
- op->kp.addr = p->addr;
+
+ /*
+ * copy gives arch_prepare_optimized_kprobe
+ * more information
+ */
+ copy_kprobe(p, &op->kp);
arch_prepare_optimized_kprobe(op);
return &op->kp;
--
1.8.4
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