[PATCH v2 7/9] x86/kprobes: Make trampoline_handler global and visible

[Andi Kleen]

From: Andi Kleen <ak@xxxxxxxxxxxxxxx>

This function is referenced from assembler, so in LTO
it needs to be global and visible to not be optimized away.

Cc: mhiramat@xxxxxxxxxx
Acked-by: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>
---
 arch/x86/kernel/kprobes/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
index 31ab91c9c4e9..1309a4eb3119 100644
--- a/arch/x86/kernel/kprobes/core.c
+++ b/arch/x86/kernel/kprobes/core.c
@@ -752,7 +752,7 @@ STACK_FRAME_NON_STANDARD(kretprobe_trampoline);
 /*
  * Called from kretprobe_trampoline
  */
-static __used void *trampoline_handler(struct pt_regs *regs)
+__used __visible void *trampoline_handler(struct pt_regs *regs)
 {
 	struct kretprobe_instance *ri = NULL;
 	struct hlist_head *head, empty_rp;
-- 
2.20.1