linux-kernel - [PATCH] LoongArch: Enable Undefined Behavior Sanitizer UBSAN

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Message-ID: <10CEA19AD9D3FA2A+20250206063820.30558-1-wangyuli@uniontech.com>
Date: Thu,  6 Feb 2025 14:38:20 +0800
From: WangYuli <wangyuli@...ontech.com>
To: chenhuacai@...nel.org,
	kernel@...0n.name
Cc: loongarch@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	zhanjun@...ontech.com,
	guanwentao@...ontech.com,
	chenlinxuan@...ontech.com,
	WangYuli <wangyuli@...ontech.com>
Subject: [PATCH] LoongArch: Enable Undefined Behavior Sanitizer UBSAN

Select ARCH_HAS_UBSAN_SANITIZE_ALL in order to allow the user to
enable CONFIG_UBSAN_SANITIZE_ALL and instrument the entire kernel for
ubsan checks.

Co-developed-by: Wentao Guan <guanwentao@...ontech.com>
Signed-off-by: Wentao Guan <guanwentao@...ontech.com>
Tested-by: Yuli Wang <wangyuli@...ontech.com>
Signed-off-by: Yuli Wang <wangyuli@...ontech.com>
---
 arch/loongarch/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig
index 2b8bd27a852f..9d20aac7bc14 100644
--- a/arch/loongarch/Kconfig
+++ b/arch/loongarch/Kconfig
@@ -30,6 +30,7 @@ config LOONGARCH
 	select ARCH_HAS_SET_MEMORY
 	select ARCH_HAS_SET_DIRECT_MAP
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
+	select ARCH_HAS_UBSAN
 	select ARCH_INLINE_READ_LOCK if !PREEMPTION
 	select ARCH_INLINE_READ_LOCK_BH if !PREEMPTION
 	select ARCH_INLINE_READ_LOCK_IRQ if !PREEMPTION
-- 
2.47.2