From 05e59e5fb0064c97a1c10921ecd549f2d4a58565 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 09 Oct 2024 06:14:40 +0000
Subject: [PATCH] add REDIRECT
---
kernel/arch/sh/kernel/dwarf.c | 14 ++++++--------
1 files changed, 6 insertions(+), 8 deletions(-)
diff --git a/kernel/arch/sh/kernel/dwarf.c b/kernel/arch/sh/kernel/dwarf.c
index bb511e2..bf8682e 100644
--- a/kernel/arch/sh/kernel/dwarf.c
+++ b/kernel/arch/sh/kernel/dwarf.c
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2009 Matt Fleming <matt@console-pimps.org>
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
*
* This is an implementation of a DWARF unwinder. Its main purpose is
* for generating stacktrace information. Based on the DWARF 3
@@ -608,17 +605,18 @@
* expected to find the real return address.
*/
if (pc == (unsigned long)&return_to_handler) {
- int index = current->curr_ret_stack;
+ struct ftrace_ret_stack *ret_stack;
+ ret_stack = ftrace_graph_get_ret_stack(current, 0);
+ if (ret_stack)
+ pc = ret_stack->ret;
/*
* We currently have no way of tracking how many
* return_to_handler()'s we've seen. If there is more
* than one patched return address on our stack,
* complain loudly.
*/
- WARN_ON(index > 0);
-
- pc = current->ret_stack[index].ret;
+ WARN_ON(ftrace_graph_get_ret_stack(current, 1));
}
#endif
--
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