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Subject[tip:x86/urgent] x86/kprobes: Make trampoline_handler() global and visible
Commit-ID:  0e72499c3cc0cead32f88b94a02204d2b80768bf
Gitweb: https://git.kernel.org/tip/0e72499c3cc0cead32f88b94a02204d2b80768bf
Author: Andi Kleen <ak@linux.intel.com>
AuthorDate: Fri, 29 Mar 2019 17:47:41 -0700
Committer: Ingo Molnar <mingo@kernel.org>
CommitDate: Wed, 8 May 2019 13:13:58 +0200

x86/kprobes: Make trampoline_handler() global and visible

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

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Link: https://lkml.kernel.org/r/20190330004743.29541-7-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
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 cf52ee0d8711..9e4fa2484d10 100644
--- a/arch/x86/kernel/kprobes/core.c
+++ b/arch/x86/kernel/kprobes/core.c
@@ -768,7 +768,7 @@ static struct kprobe kretprobe_kprobe = {
/*
* Called from kretprobe_trampoline
*/
-static __used void *trampoline_handler(struct pt_regs *regs)
+__used __visible void *trampoline_handler(struct pt_regs *regs)
{
struct kprobe_ctlblk *kcb;
struct kretprobe_instance *ri = NULL;
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