linux-kernel - [PATCH 1/3] MIPS: ftrace: Fix N32 save registers

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Message-Id: <1612080878-5426-1-git-send-email-hejinyang@loongson.cn>
Date:   Sun, 31 Jan 2021 16:14:36 +0800
From:   Jinyang He <hejinyang@...ngson.cn>
To:     Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...hat.com>
Cc:     Wu Zhangjin <wuzhangjin@...il.com>, linux-mips@...r.kernel.org,
        linux-kernel@...r.kernel.org, Huacai Chen <chenhuacai@...nel.org>,
        Jiaxun Yang <jiaxun.yang@...goat.com>,
        Tiezhu Yang <yangtiezhu@...ngson.cn>
Subject: [PATCH 1/3] MIPS: ftrace: Fix N32 save registers

CONFIG_64BIT is confusing. N32 also pass parameters by a0~a7.

Signed-off-by: Jinyang He <hejinyang@...ngson.cn>
---
 arch/mips/kernel/mcount.S | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/mips/kernel/mcount.S b/arch/mips/kernel/mcount.S
index cff52b2..808257a 100644
--- a/arch/mips/kernel/mcount.S
+++ b/arch/mips/kernel/mcount.S
@@ -27,7 +27,7 @@
 	PTR_S	a1, PT_R5(sp)
 	PTR_S	a2, PT_R6(sp)
 	PTR_S	a3, PT_R7(sp)
-#ifdef CONFIG_64BIT
+#if _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32
 	PTR_S	a4, PT_R8(sp)
 	PTR_S	a5, PT_R9(sp)
 	PTR_S	a6, PT_R10(sp)
@@ -42,7 +42,7 @@
 	PTR_L	a1, PT_R5(sp)
 	PTR_L	a2, PT_R6(sp)
 	PTR_L	a3, PT_R7(sp)
-#ifdef CONFIG_64BIT
+#if _MIPS_SIM == _MIPS_SIM_ABI64 || _MIPS_SIM == _MIPS_SIM_NABI32
 	PTR_L	a4, PT_R8(sp)
 	PTR_L	a5, PT_R9(sp)
 	PTR_L	a6, PT_R10(sp)
-- 
2.1.0